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-rw-r--r--arch/mips/kernel/i8259.c2
-rw-r--r--arch/mips/kernel/irixelf.c14
-rw-r--r--arch/mips/kernel/irixinv.c7
-rw-r--r--arch/mips/kernel/irixsig.c408
-rw-r--r--arch/mips/kernel/process.c8
-rw-r--r--arch/mips/kernel/ptrace.c4
-rw-r--r--arch/mips/kernel/signal.c14
-rw-r--r--arch/mips/kernel/sysirix.c479
-rw-r--r--arch/mips/kernel/traps.c21
-rw-r--r--arch/mips/kernel/unaligned.c10
10 files changed, 489 insertions, 478 deletions
diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
index bb31370cd390..a7d2aac46eea 100644
--- a/arch/mips/kernel/i8259.c
+++ b/arch/mips/kernel/i8259.c
@@ -321,7 +321,7 @@ void __init init_i8259_irqs (void)
for (i = 0; i < 16; i++) {
irq_desc[i].status = IRQ_DISABLED;
- irq_desc[i].action = 0;
+ irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].handler = &i8259A_irq_type;
}
diff --git a/arch/mips/kernel/irixelf.c b/arch/mips/kernel/irixelf.c
index 881f125eecb4..5aeacc1ffb24 100644
--- a/arch/mips/kernel/irixelf.c
+++ b/arch/mips/kernel/irixelf.c
@@ -147,7 +147,7 @@ static void padzero(unsigned long elf_bss)
nbyte = elf_bss & (PAGE_SIZE-1);
if (nbyte) {
nbyte = PAGE_SIZE - nbyte;
- clear_user((void *) elf_bss, nbyte);
+ clear_user((void __user *) elf_bss, nbyte);
}
}
@@ -878,10 +878,10 @@ static int load_irix_library(struct file *file)
* phdrs there are in the USER_PHDRP array. We return the vaddr the
* first phdr was successfully mapped to.
*/
-unsigned long irix_mapelf(int fd, struct elf_phdr *user_phdrp, int cnt)
+unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt)
{
unsigned long type, vaddr, filesz, offset, flags;
- struct elf_phdr *hp;
+ struct elf_phdr __user *hp;
struct file *filp;
int i, retval;
@@ -968,9 +968,9 @@ unsigned long irix_mapelf(int fd, struct elf_phdr *user_phdrp, int cnt)
/* These are the only things you should do on a core-file: use only these
* functions to write out all the necessary info.
*/
-static int dump_write(struct file *file, const void *addr, int nr)
+static int dump_write(struct file *file, const void __user *addr, int nr)
{
- return file->f_op->write(file, (const char *) addr, nr, &file->f_pos) == nr;
+ return file->f_op->write(file, (const char __user *) addr, nr, &file->f_pos) == nr;
}
static int dump_seek(struct file *file, off_t off)
@@ -1204,7 +1204,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
len = current->mm->arg_end - current->mm->arg_start;
len = len >= ELF_PRARGSZ ? ELF_PRARGSZ : len;
(void *) copy_from_user(&psinfo.pr_psargs,
- (const char *)current->mm->arg_start, len);
+ (const char __user *)current->mm->arg_start, len);
for (i = 0; i < len; i++)
if (psinfo.pr_psargs[i] == 0)
psinfo.pr_psargs[i] = ' ';
@@ -1301,7 +1301,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
#ifdef DEBUG
printk("elf_core_dump: writing %08lx %lx\n", addr, len);
#endif
- DUMP_WRITE((void *)addr, len);
+ DUMP_WRITE((void __user *)addr, len);
}
if ((off_t) file->f_pos != offset) {
diff --git a/arch/mips/kernel/irixinv.c b/arch/mips/kernel/irixinv.c
index 60aa98cd1791..de8584f62311 100644
--- a/arch/mips/kernel/irixinv.c
+++ b/arch/mips/kernel/irixinv.c
@@ -30,10 +30,10 @@ void add_to_inventory (int class, int type, int controller, int unit, int state)
inventory_items++;
}
-int dump_inventory_to_user (void *userbuf, int size)
+int dump_inventory_to_user (void __user *userbuf, int size)
{
inventory_t *inv = &inventory [0];
- inventory_t *user = userbuf;
+ inventory_t __user *user = userbuf;
int v;
if (!access_ok(VERIFY_WRITE, userbuf, size))
@@ -41,7 +41,8 @@ int dump_inventory_to_user (void *userbuf, int size)
for (v = 0; v < inventory_items; v++){
inv = &inventory [v];
- copy_to_user (user, inv, sizeof (inventory_t));
+ if (copy_to_user (user, inv, sizeof (inventory_t)))
+ return -EFAULT;
user++;
}
return inventory_items * sizeof (inventory_t);
diff --git a/arch/mips/kernel/irixsig.c b/arch/mips/kernel/irixsig.c
index eff89322ba50..908e63684208 100644
--- a/arch/mips/kernel/irixsig.c
+++ b/arch/mips/kernel/irixsig.c
@@ -76,36 +76,39 @@ static inline void dump_irix5_sigctx(struct sigctx_irix5 *c)
}
#endif
-static void setup_irix_frame(struct k_sigaction *ka, struct pt_regs *regs,
- int signr, sigset_t *oldmask)
+static int setup_irix_frame(struct k_sigaction *ka, struct pt_regs *regs,
+ int signr, sigset_t *oldmask)
{
+ struct sigctx_irix5 __user *ctx;
unsigned long sp;
- struct sigctx_irix5 *ctx;
- int i;
+ int error, i;
sp = regs->regs[29];
sp -= sizeof(struct sigctx_irix5);
sp &= ~(0xf);
- ctx = (struct sigctx_irix5 *) sp;
+ ctx = (struct sigctx_irix5 __user *) sp;
if (!access_ok(VERIFY_WRITE, ctx, sizeof(*ctx)))
goto segv_and_exit;
- __put_user(0, &ctx->weird_fpu_thing);
- __put_user(~(0x00000001), &ctx->rmask);
- __put_user(0, &ctx->regs[0]);
+ error = __put_user(0, &ctx->weird_fpu_thing);
+ error |= __put_user(~(0x00000001), &ctx->rmask);
+ error |= __put_user(0, &ctx->regs[0]);
for(i = 1; i < 32; i++)
- __put_user((u64) regs->regs[i], &ctx->regs[i]);
+ error |= __put_user((u64) regs->regs[i], &ctx->regs[i]);
+
+ error |= __put_user((u64) regs->hi, &ctx->hi);
+ error |= __put_user((u64) regs->lo, &ctx->lo);
+ error |= __put_user((u64) regs->cp0_epc, &ctx->pc);
+ error |= __put_user(!!used_math(), &ctx->usedfp);
+ error |= __put_user((u64) regs->cp0_cause, &ctx->cp0_cause);
+ error |= __put_user((u64) regs->cp0_badvaddr, &ctx->cp0_badvaddr);
- __put_user((u64) regs->hi, &ctx->hi);
- __put_user((u64) regs->lo, &ctx->lo);
- __put_user((u64) regs->cp0_epc, &ctx->pc);
- __put_user(!!used_math(), &ctx->usedfp);
- __put_user((u64) regs->cp0_cause, &ctx->cp0_cause);
- __put_user((u64) regs->cp0_badvaddr, &ctx->cp0_badvaddr);
+ error |= __put_user(0, &ctx->sstk_flags); /* XXX sigstack unimp... todo... */
- __put_user(0, &ctx->sstk_flags); /* XXX sigstack unimp... todo... */
+ error |= __copy_to_user(&ctx->sigset, oldmask, sizeof(irix_sigset_t)) ? -EFAULT : 0;
- __copy_to_user(&ctx->sigset, oldmask, sizeof(irix_sigset_t));
+ if (error)
+ goto segv_and_exit;
#ifdef DEBUG_SIG
dump_irix5_sigctx(ctx);
@@ -117,13 +120,14 @@ static void setup_irix_frame(struct k_sigaction *ka, struct pt_regs *regs,
regs->regs[7] = (unsigned long) ka->sa.sa_handler;
regs->regs[25] = regs->cp0_epc = (unsigned long) ka->sa_restorer;
- return;
+ return 1;
segv_and_exit:
force_sigsegv(signr, current);
+ return 0;
}
-static void inline
+static int inline
setup_irix_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
int signr, sigset_t *oldmask, siginfo_t *info)
{
@@ -131,9 +135,11 @@ setup_irix_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
do_exit(SIGSEGV);
}
-static inline void handle_signal(unsigned long sig, siginfo_t *info,
+static inline int handle_signal(unsigned long sig, siginfo_t *info,
struct k_sigaction *ka, sigset_t *oldset, struct pt_regs * regs)
{
+ int ret;
+
switch(regs->regs[0]) {
case ERESTARTNOHAND:
regs->regs[2] = EINTR;
@@ -151,9 +157,9 @@ static inline void handle_signal(unsigned long sig, siginfo_t *info,
regs->regs[0] = 0; /* Don't deal with this again. */
if (ka->sa.sa_flags & SA_SIGINFO)
- setup_irix_rt_frame(ka, regs, sig, oldset, info);
+ ret = setup_irix_rt_frame(ka, regs, sig, oldset, info);
else
- setup_irix_frame(ka, regs, sig, oldset);
+ ret = setup_irix_frame(ka, regs, sig, oldset);
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -161,6 +167,8 @@ static inline void handle_signal(unsigned long sig, siginfo_t *info,
sigaddset(&current->blocked,sig);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
+
+ return ret;
}
asmlinkage int do_irix_signal(sigset_t *oldset, struct pt_regs *regs)
@@ -184,10 +192,8 @@ asmlinkage int do_irix_signal(sigset_t *oldset, struct pt_regs *regs)
oldset = &current->blocked;
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
- if (signr > 0) {
- handle_signal(signr, &info, &ka, oldset, regs);
- return 1;
- }
+ if (signr > 0)
+ return handle_signal(signr, &info, &ka, oldset, regs);
no_signal:
/*
@@ -208,10 +214,11 @@ no_signal:
asmlinkage void
irix_sigreturn(struct pt_regs *regs)
{
- struct sigctx_irix5 *context, *magic;
+ struct sigctx_irix5 __user *context, *magic;
unsigned long umask, mask;
u64 *fregs;
- int sig, i, base = 0;
+ u32 usedfp;
+ int error, sig, i, base = 0;
sigset_t blocked;
/* Always make any pending restarted system calls return -EINTR */
@@ -220,8 +227,8 @@ irix_sigreturn(struct pt_regs *regs)
if (regs->regs[2] == 1000)
base = 1;
- context = (struct sigctx_irix5 *) regs->regs[base + 4];
- magic = (struct sigctx_irix5 *) regs->regs[base + 5];
+ context = (struct sigctx_irix5 __user *) regs->regs[base + 4];
+ magic = (struct sigctx_irix5 __user *) regs->regs[base + 5];
sig = (int) regs->regs[base + 6];
#ifdef DEBUG_SIG
printk("[%s:%d] IRIX sigreturn(scp[%p],ucp[%p],sig[%d])\n",
@@ -236,25 +243,31 @@ irix_sigreturn(struct pt_regs *regs)
dump_irix5_sigctx(context);
#endif
- __get_user(regs->cp0_epc, &context->pc);
- umask = context->rmask; mask = 2;
+ error = __get_user(regs->cp0_epc, &context->pc);
+ error |= __get_user(umask, &context->rmask);
+
+ mask = 2;
for (i = 1; i < 32; i++, mask <<= 1) {
- if(umask & mask)
- __get_user(regs->regs[i], &context->regs[i]);
+ if (umask & mask)
+ error |= __get_user(regs->regs[i], &context->regs[i]);
}
- __get_user(regs->hi, &context->hi);
- __get_user(regs->lo, &context->lo);
+ error |= __get_user(regs->hi, &context->hi);
+ error |= __get_user(regs->lo, &context->lo);
- if ((umask & 1) && context->usedfp) {
+ error |= __get_user(usedfp, &context->usedfp);
+ if ((umask & 1) && usedfp) {
fregs = (u64 *) &current->thread.fpu;
+
for(i = 0; i < 32; i++)
- fregs[i] = (u64) context->fpregs[i];
- __get_user(current->thread.fpu.hard.fcr31, &context->fpcsr);
+ error |= __get_user(fregs[i], &context->fpregs[i]);
+ error |= __get_user(current->thread.fpu.hard.fcr31, &context->fpcsr);
}
/* XXX do sigstack crapola here... XXX */
- if (__copy_from_user(&blocked, &context->sigset, sizeof(blocked)))
+ error |= __copy_from_user(&blocked, &context->sigset, sizeof(blocked)) ? -EFAULT : 0;
+
+ if (error)
goto badframe;
sigdelsetmask(&blocked, ~_BLOCKABLE);
@@ -296,8 +309,8 @@ static inline void dump_sigact_irix5(struct sigact_irix5 *p)
#endif
asmlinkage int
-irix_sigaction(int sig, const struct sigaction *act,
- struct sigaction *oact, void *trampoline)
+irix_sigaction(int sig, const struct sigaction __user *act,
+ struct sigaction __user *oact, void __user *trampoline)
{
struct k_sigaction new_ka, old_ka;
int ret;
@@ -311,12 +324,16 @@ irix_sigaction(int sig, const struct sigaction *act,
#endif
if (act) {
sigset_t mask;
- if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
- __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_flags, &act->sa_flags))
+ int err;
+
+ if (!access_ok(VERIFY_READ, act, sizeof(*act)))
return -EFAULT;
+ err = __get_user(new_ka.sa.sa_handler, &act->sa_handler);
+ err |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
- __copy_from_user(&mask, &act->sa_mask, sizeof(sigset_t));
+ err |= __copy_from_user(&mask, &act->sa_mask, sizeof(sigset_t)) ? -EFAULT : 0;
+ if (err)
+ return err;
/*
* Hmmm... methinks IRIX libc always passes a valid trampoline
@@ -330,30 +347,37 @@ irix_sigaction(int sig, const struct sigaction *act,
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
if (!ret && oact) {
- if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
- __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags))
+ int err;
+
+ if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)))
+ return -EFAULT;
+
+ err = __put_user(old_ka.sa.sa_handler, &oact->sa_handler);
+ err |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
+ err |= __copy_to_user(&oact->sa_mask, &old_ka.sa.sa_mask,
+ sizeof(sigset_t)) ? -EFAULT : 0;
+ if (err)
return -EFAULT;
- __copy_to_user(&old_ka.sa.sa_mask, &oact->sa_mask,
- sizeof(sigset_t));
}
return ret;
}
-asmlinkage int irix_sigpending(irix_sigset_t *set)
+asmlinkage int irix_sigpending(irix_sigset_t __user *set)
{
return do_sigpending(set, sizeof(*set));
}
-asmlinkage int irix_sigprocmask(int how, irix_sigset_t *new, irix_sigset_t *old)
+asmlinkage int irix_sigprocmask(int how, irix_sigset_t __user *new,
+ irix_sigset_t __user *old)
{
sigset_t oldbits, newbits;
if (new) {
if (!access_ok(VERIFY_READ, new, sizeof(*new)))
return -EFAULT;
- __copy_from_user(&newbits, new, sizeof(unsigned long)*4);
+ if (__copy_from_user(&newbits, new, sizeof(unsigned long)*4))
+ return -EFAULT;
sigdelsetmask(&newbits, ~_BLOCKABLE);
spin_lock_irq(&current->sighand->siglock);
@@ -381,20 +405,19 @@ asmlinkage int irix_sigprocmask(int how, irix_sigset_t *new, irix_sigset_t *old)
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
}
- if(old) {
- if (!access_ok(VERIFY_WRITE, old, sizeof(*old)))
- return -EFAULT;
- __copy_to_user(old, &current->blocked, sizeof(unsigned long)*4);
- }
+ if (old)
+ return copy_to_user(old, &current->blocked,
+ sizeof(unsigned long)*4) ? -EFAULT : 0;
return 0;
}
asmlinkage int irix_sigsuspend(struct pt_regs *regs)
{
- sigset_t *uset, saveset, newset;
+ sigset_t saveset, newset;
+ sigset_t __user *uset;
- uset = (sigset_t *) regs->regs[4];
+ uset = (sigset_t __user *) regs->regs[4];
if (copy_from_user(&newset, uset, sizeof(sigset_t)))
return -EFAULT;
sigdelsetmask(&newset, ~_BLOCKABLE);
@@ -440,12 +463,13 @@ struct irix5_siginfo {
} stuff;
};
-asmlinkage int irix_sigpoll_sys(unsigned long *set, struct irix5_siginfo *info,
- struct timespec *tp)
+asmlinkage int irix_sigpoll_sys(unsigned long __user *set,
+ struct irix5_siginfo __user *info, struct timespec __user *tp)
{
long expire = MAX_SCHEDULE_TIMEOUT;
sigset_t kset;
int i, sig, error, timeo = 0;
+ struct timespec ktp;
#ifdef DEBUG_SIG
printk("[%s:%d] irix_sigpoll_sys(%p,%p,%p)\n",
@@ -456,14 +480,8 @@ asmlinkage int irix_sigpoll_sys(unsigned long *set, struct irix5_siginfo *info,
if (!set)
return -EINVAL;
- if (!access_ok(VERIFY_READ, set, sizeof(kset))) {
- error = -EFAULT;
- goto out;
- }
-
- __copy_from_user(&kset, set, sizeof(set));
- if (error)
- goto out;
+ if (copy_from_user(&kset, set, sizeof(set)))
+ return -EFAULT;
if (info && clear_user(info, sizeof(*info))) {
error = -EFAULT;
@@ -471,19 +489,21 @@ asmlinkage int irix_sigpoll_sys(unsigned long *set, struct irix5_siginfo *info,
}
if (tp) {
- if (!access_ok(VERIFY_READ, tp, sizeof(*tp)))
+ if (copy_from_user(&ktp, tp, sizeof(*tp)))
return -EFAULT;
- if (!tp->tv_sec && !tp->tv_nsec) {
- error = -EINVAL;
- goto out;
- }
- expire = timespec_to_jiffies(tp) + (tp->tv_sec||tp->tv_nsec);
+
+ if (!ktp.tv_sec && !ktp.tv_nsec)
+ return -EINVAL;
+
+ expire = timespec_to_jiffies(&ktp) +
+ (ktp.tv_sec || ktp.tv_nsec);
}
while(1) {
long tmp = 0;
- expire = schedule_timeout_interruptible(expire);
+ current->state = TASK_INTERRUPTIBLE;
+ expire = schedule_timeout(expire);
for (i=0; i<=4; i++)
tmp |= (current->pending.signal.sig[i] & kset.sig[i]);
@@ -500,15 +520,14 @@ asmlinkage int irix_sigpoll_sys(unsigned long *set, struct irix5_siginfo *info,
if (timeo)
return -EAGAIN;
- for(sig = 1; i <= 65 /* IRIX_NSIG */; sig++) {
+ for (sig = 1; i <= 65 /* IRIX_NSIG */; sig++) {
if (sigismember (&kset, sig))
continue;
if (sigismember (&current->pending.signal, sig)) {
/* XXX need more than this... */
if (info)
- info->sig = sig;
- error = 0;
- goto out;
+ return copy_to_user(&info->sig, &sig, sizeof(sig));
+ return 0;
}
}
@@ -534,8 +553,9 @@ extern int getrusage(struct task_struct *, int, struct rusage __user *);
#define W_MASK (W_EXITED | W_TRAPPED | W_STOPPED | W_CONT | W_NOHANG)
-asmlinkage int irix_waitsys(int type, int pid, struct irix5_siginfo *info,
- int options, struct rusage *ru)
+asmlinkage int irix_waitsys(int type, int pid,
+ struct irix5_siginfo __user *info, int options,
+ struct rusage __user *ru)
{
int flag, retval;
DECLARE_WAITQUEUE(wait, current);
@@ -543,28 +563,22 @@ asmlinkage int irix_waitsys(int type, int pid, struct irix5_siginfo *info,
struct task_struct *p;
struct list_head *_p;
- if (!info) {
- retval = -EINVAL;
- goto out;
- }
- if (!access_ok(VERIFY_WRITE, info, sizeof(*info))) {
- retval = -EFAULT;
- goto out;
- }
- if (ru) {
- if (!access_ok(VERIFY_WRITE, ru, sizeof(*ru))) {
- retval = -EFAULT;
- goto out;
- }
- }
- if (options & ~(W_MASK)) {
- retval = -EINVAL;
- goto out;
- }
- if (type != IRIX_P_PID && type != IRIX_P_PGID && type != IRIX_P_ALL) {
- retval = -EINVAL;
- goto out;
- }
+ if (!info)
+ return -EINVAL;
+
+ if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
+ return -EFAULT;
+
+ if (ru)
+ if (!access_ok(VERIFY_WRITE, ru, sizeof(*ru)))
+ return -EFAULT;
+
+ if (options & ~W_MASK)
+ return -EINVAL;
+
+ if (type != IRIX_P_PID && type != IRIX_P_PGID && type != IRIX_P_ALL)
+ return -EINVAL;
+
add_wait_queue(&current->signal->wait_chldexit, &wait);
repeat:
flag = 0;
@@ -595,18 +609,20 @@ repeat:
add_parent(p, p->parent);
write_unlock_irq(&tasklist_lock);
retval = ru ? getrusage(p, RUSAGE_BOTH, ru) : 0;
- if (!retval && ru) {
- retval |= __put_user(SIGCHLD, &info->sig);
- retval |= __put_user(0, &info->code);
- retval |= __put_user(p->pid, &info->stuff.procinfo.pid);
- retval |= __put_user((p->exit_code >> 8) & 0xff,
- &info->stuff.procinfo.procdata.child.status);
- retval |= __put_user(p->utime, &info->stuff.procinfo.procdata.child.utime);
- retval |= __put_user(p->stime, &info->stuff.procinfo.procdata.child.stime);
- }
- if (!retval) {
- p->exit_code = 0;
- }
+ if (retval)
+ goto end_waitsys;
+
+ retval = __put_user(SIGCHLD, &info->sig);
+ retval |= __put_user(0, &info->code);
+ retval |= __put_user(p->pid, &info->stuff.procinfo.pid);
+ retval |= __put_user((p->exit_code >> 8) & 0xff,
+ &info->stuff.procinfo.procdata.child.status);
+ retval |= __put_user(p->utime, &info->stuff.procinfo.procdata.child.utime);
+ retval |= __put_user(p->stime, &info->stuff.procinfo.procdata.child.stime);
+ if (retval)
+ goto end_waitsys;
+
+ p->exit_code = 0;
goto end_waitsys;
case EXIT_ZOMBIE:
@@ -614,16 +630,18 @@ repeat:
current->signal->cstime += p->stime + p->signal->cstime;
if (ru != NULL)
getrusage(p, RUSAGE_BOTH, ru);
- __put_user(SIGCHLD, &info->sig);
- __put_user(1, &info->code); /* CLD_EXITED */
- __put_user(p->pid, &info->stuff.procinfo.pid);
- __put_user((p->exit_code >> 8) & 0xff,
+ retval = __put_user(SIGCHLD, &info->sig);
+ retval |= __put_user(1, &info->code); /* CLD_EXITED */
+ retval |= __put_user(p->pid, &info->stuff.procinfo.pid);
+ retval |= __put_user((p->exit_code >> 8) & 0xff,
&info->stuff.procinfo.procdata.child.status);
- __put_user(p->utime,
+ retval |= __put_user(p->utime,
&info->stuff.procinfo.procdata.child.utime);
- __put_user(p->stime,
+ retval |= __put_user(p->stime,
&info->stuff.procinfo.procdata.child.stime);
- retval = 0;
+ if (retval)
+ return retval;
+
if (p->real_parent != p->parent) {
write_lock_irq(&tasklist_lock);
remove_parent(p);
@@ -656,7 +674,6 @@ end_waitsys:
current->state = TASK_RUNNING;
remove_wait_queue(&current->signal->wait_chldexit, &wait);
-out:
return retval;
}
@@ -675,39 +692,39 @@ struct irix5_context {
asmlinkage int irix_getcontext(struct pt_regs *regs)
{
- int i, base = 0;
- struct irix5_context *ctx;
+ int error, i, base = 0;
+ struct irix5_context __user *ctx;
unsigned long flags;
if (regs->regs[2] == 1000)
base = 1;
- ctx = (struct irix5_context *) regs->regs[base + 4];
+ ctx = (struct irix5_context __user *) regs->regs[base + 4];
#ifdef DEBUG_SIG
printk("[%s:%d] irix_getcontext(%p)\n",
current->comm, current->pid, ctx);
#endif
- if (!access_ok(VERIFY_WRITE, ctx, sizeof(*ctx)))
+ if (!access_ok(VERIFY_WRITE, ctx, sizeof(*ctx)));
return -EFAULT;
- __put_user(current->thread.irix_oldctx, &ctx->link);
+ error = __put_user(current->thread.irix_oldctx, &ctx->link);
- __copy_to_user(&ctx->sigmask, &current->blocked, sizeof(irix_sigset_t));
+ error |= __copy_to_user(&ctx->sigmask, &current->blocked, sizeof(irix_sigset_t)) ? -EFAULT : 0;
/* XXX Do sigstack stuff someday... */
- __put_user(0, &ctx->stack.sp);
- __put_user(0, &ctx->stack.size);
- __put_user(0, &ctx->stack.flags);
+ error |= __put_user(0, &ctx->stack.sp);
+ error |= __put_user(0, &ctx->stack.size);
+ error |= __put_user(0, &ctx->stack.flags);
- __put_user(0, &ctx->weird_graphics_thing);
- __put_user(0, &ctx->regs[0]);
+ error |= __put_user(0, &ctx->weird_graphics_thing);
+ error |= __put_user(0, &ctx->regs[0]);
for (i = 1; i < 32; i++)
- __put_user(regs->regs[i], &ctx->regs[i]);
- __put_user(regs->lo, &ctx->regs[32]);
- __put_user(regs->hi, &ctx->regs[33]);
- __put_user(regs->cp0_cause, &ctx->regs[34]);
- __put_user(regs->cp0_epc, &ctx->regs[35]);
+ error |= __put_user(regs->regs[i], &ctx->regs[i]);
+ error |= __put_user(regs->lo, &ctx->regs[32]);
+ error |= __put_user(regs->hi, &ctx->regs[33]);
+ error |= __put_user(regs->cp0_cause, &ctx->regs[34]);
+ error |= __put_user(regs->cp0_epc, &ctx->regs[35]);
flags = 0x0f;
if (!used_math()) {
@@ -716,119 +733,124 @@ asmlinkage int irix_getcontext(struct pt_regs *regs)
/* XXX wheee... */
printk("Wheee, no code for saving IRIX FPU context yet.\n");
}
- __put_user(flags, &ctx->flags);
+ error |= __put_user(flags, &ctx->flags);
- return 0;
+ return error;
}
-asmlinkage unsigned long irix_setcontext(struct pt_regs *regs)
+asmlinkage void irix_setcontext(struct pt_regs *regs)
{
- int error, base = 0;
- struct irix5_context *ctx;
+ struct irix5_context __user *ctx;
+ int err, base = 0;
+ u32 flags;
- if(regs->regs[2] == 1000)
+ if (regs->regs[2] == 1000)
base = 1;
- ctx = (struct irix5_context *) regs->regs[base + 4];
+ ctx = (struct irix5_context __user *) regs->regs[base + 4];
#ifdef DEBUG_SIG
printk("[%s:%d] irix_setcontext(%p)\n",
current->comm, current->pid, ctx);
#endif
- if (!access_ok(VERIFY_READ, ctx, sizeof(*ctx))) {
- error = -EFAULT;
- goto out;
- }
+ if (!access_ok(VERIFY_READ, ctx, sizeof(*ctx)))
+ goto segv_and_exit;
- if (ctx->flags & 0x02) {
+ err = __get_user(flags, &ctx->flags);
+ if (flags & 0x02) {
/* XXX sigstack garbage, todo... */
printk("Wheee, cannot do sigstack stuff in setcontext\n");
}
- if (ctx->flags & 0x04) {
+ if (flags & 0x04) {
int i;
/* XXX extra control block stuff... todo... */
- for(i = 1; i < 32; i++)
- regs->regs[i] = ctx->regs[i];
- regs->lo = ctx->regs[32];
- regs->hi = ctx->regs[33];
- regs->cp0_epc = ctx->regs[35];
+ for (i = 1; i < 32; i++)
+ err |= __get_user(regs->regs[i], &ctx->regs[i]);
+ err |= __get_user(regs->lo, &ctx->regs[32]);
+ err |= __get_user(regs->hi, &ctx->regs[33]);
+ err |= __get_user(regs->cp0_epc, &ctx->regs[35]);
}
- if (ctx->flags & 0x08) {
+ if (flags & 0x08)
/* XXX fpu context, blah... */
- printk("Wheee, cannot restore FPU context yet...\n");
- }
- current->thread.irix_oldctx = ctx->link;
- error = regs->regs[2];
+ printk(KERN_ERR "Wheee, cannot restore FPU context yet...\n");
-out:
- return error;
+ err |= __get_user(current->thread.irix_oldctx, &ctx->link);
+ if (err)
+ goto segv_and_exit;
+
+ /*
+ * Don't let your children do this ...
+ */
+ if (current_thread_info()->flags & TIF_SYSCALL_TRACE)
+ do_syscall_trace(regs, 1);
+ __asm__ __volatile__(
+ "move\t$29,%0\n\t"
+ "j\tsyscall_exit"
+ :/* no outputs */
+ :"r" (&regs));
+ /* Unreached */
+
+segv_and_exit:
+ force_sigsegv(SIGSEGV, current);
}
-struct irix_sigstack { unsigned long sp; int status; };
+struct irix_sigstack {
+ unsigned long sp;
+ int status;
+};
-asmlinkage int irix_sigstack(struct irix_sigstack *new, struct irix_sigstack *old)
+asmlinkage int irix_sigstack(struct irix_sigstack __user *new,
+ struct irix_sigstack __user *old)
{
- int error = -EFAULT;
-
#ifdef DEBUG_SIG
printk("[%s:%d] irix_sigstack(%p,%p)\n",
current->comm, current->pid, new, old);
#endif
- if(new) {
+ if (new) {
if (!access_ok(VERIFY_READ, new, sizeof(*new)))
- goto out;
+ return -EFAULT;
}
- if(old) {
+ if (old) {
if (!access_ok(VERIFY_WRITE, old, sizeof(*old)))
- goto out;
+ return -EFAULT;
}
- error = 0;
-out:
- return error;
+ return 0;
}
struct irix_sigaltstack { unsigned long sp; int size; int status; };
-asmlinkage int irix_sigaltstack(struct irix_sigaltstack *new,
- struct irix_sigaltstack *old)
+asmlinkage int irix_sigaltstack(struct irix_sigaltstack __user *new,
+ struct irix_sigaltstack __user *old)
{
- int error = -EFAULT;
-
#ifdef DEBUG_SIG
printk("[%s:%d] irix_sigaltstack(%p,%p)\n",
current->comm, current->pid, new, old);
#endif
- if (new) {
+ if (new)
if (!access_ok(VERIFY_READ, new, sizeof(*new)))
- goto out;
- }
+ return -EFAULT;
if (old) {
if (!access_ok(VERIFY_WRITE, old, sizeof(*old)))
- goto out;
+ return -EFAULT;
}
- error = 0;
-
-out:
- error = 0;
- return error;
+ return 0;
}
struct irix_procset {
int cmd, ltype, lid, rtype, rid;
};
-asmlinkage int irix_sigsendset(struct irix_procset *pset, int sig)
+asmlinkage int irix_sigsendset(struct irix_procset __user *pset, int sig)
{
if (!access_ok(VERIFY_READ, pset, sizeof(*pset)))
return -EFAULT;
-
#ifdef DEBUG_SIG
printk("[%s:%d] irix_sigsendset([%d,%d,%d,%d,%d],%d)\n",
current->comm, current->pid,
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index f99efce556ea..5223c4450e4c 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -39,14 +39,6 @@
#include <asm/inst.h>
/*
- * We use this if we don't have any better idle routine..
- * (This to kill: kernel/platform.c.
- */
-void default_idle (void)
-{
-}
-
-/*
* The idle thread. There's no useful work to be done, so just try to conserve
* power and have a low exit latency (ie sit in a loop waiting for somebody to
* say that they'd like to reschedule)
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 0b571a5b4b83..2c7fc7472fb2 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -103,7 +103,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
ret = -EIO;
if (copied != sizeof(tmp))
break;
- ret = put_user(tmp,(unsigned long *) data);
+ ret = put_user(tmp,(unsigned long __user *) data);
break;
}
@@ -180,7 +180,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
ret = -EIO;
goto out_tsk;
}
- ret = put_user(tmp, (unsigned long *) data);
+ ret = put_user(tmp, (unsigned long __user *) data);
break;
}
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 0209c1dd1429..eb127230cc9a 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -47,9 +47,10 @@ save_static_function(sys_sigsuspend);
__attribute_used__ noinline static int
_sys_sigsuspend(nabi_no_regargs struct pt_regs regs)
{
- sigset_t *uset, saveset, newset;
+ sigset_t saveset, newset;
+ sigset_t __user *uset;
- uset = (sigset_t *) regs.regs[4];
+ uset = (sigset_t __user *) regs.regs[4];
if (copy_from_user(&newset, uset, sizeof(sigset_t)))
return -EFAULT;
sigdelsetmask(&newset, ~_BLOCKABLE);
@@ -75,7 +76,8 @@ save_static_function(sys_rt_sigsuspend);
__attribute_used__ noinline static int
_sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
{
- sigset_t *unewset, saveset, newset;
+ sigset_t saveset, newset;
+ sigset_t __user *unewset;
size_t sigsetsize;
/* XXX Don't preclude handling different sized sigset_t's. */
@@ -83,7 +85,7 @@ _sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
if (sigsetsize != sizeof(sigset_t))
return -EINVAL;
- unewset = (sigset_t *) regs.regs[4];
+ unewset = (sigset_t __user *) regs.regs[4];
if (copy_from_user(&newset, unewset, sizeof(newset)))
return -EFAULT;
sigdelsetmask(&newset, ~_BLOCKABLE);
@@ -147,8 +149,8 @@ asmlinkage int sys_sigaction(int sig, const struct sigaction *act,
asmlinkage int sys_sigaltstack(nabi_no_regargs struct pt_regs regs)
{
- const stack_t *uss = (const stack_t *) regs.regs[4];
- stack_t *uoss = (stack_t *) regs.regs[5];
+ const stack_t __user *uss = (const stack_t __user *) regs.regs[4];
+ stack_t __user *uoss = (stack_t __user *) regs.regs[5];
unsigned long usp = regs.regs[29];
return do_sigaltstack(uss, uoss, usp);
diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c
index ed7c0e3c2f85..52924f8ce23c 100644
--- a/arch/mips/kernel/sysirix.c
+++ b/arch/mips/kernel/sysirix.c
@@ -233,7 +233,7 @@ asmlinkage int irix_prctl(unsigned option, ...)
#undef DEBUG_PROCGRPS
-extern unsigned long irix_mapelf(int fd, struct elf_phdr *user_phdrp, int cnt);
+extern unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt);
extern int getrusage(struct task_struct *p, int who, struct rusage __user *ru);
extern char *prom_getenv(char *name);
extern long prom_setenv(char *name, char *value);
@@ -270,23 +270,19 @@ asmlinkage int irix_syssgi(struct pt_regs *regs)
cmd = regs->regs[base + 4];
switch(cmd) {
case SGI_SYSID: {
- char *buf = (char *) regs->regs[base + 5];
+ char __user *buf = (char __user *) regs->regs[base + 5];
/* XXX Use ethernet addr.... */
- retval = clear_user(buf, 64);
+ retval = clear_user(buf, 64) ? -EFAULT : 0;
break;
}
#if 0
case SGI_RDNAME: {
int pid = (int) regs->regs[base + 5];
- char *buf = (char *) regs->regs[base + 6];
+ char __user *buf = (char __user *) regs->regs[base + 6];
struct task_struct *p;
char tcomm[sizeof(current->comm)];
- if (!access_ok(VERIFY_WRITE, buf, sizeof(tcomm))) {
- retval = -EFAULT;
- break;
- }
read_lock(&tasklist_lock);
p = find_task_by_pid(pid);
if (!p) {
@@ -298,34 +294,28 @@ asmlinkage int irix_syssgi(struct pt_regs *regs)
read_unlock(&tasklist_lock);
/* XXX Need to check sizes. */
- copy_to_user(buf, tcomm, sizeof(tcomm));
- retval = 0;
+ retval = copy_to_user(buf, tcomm, sizeof(tcomm)) ? -EFAULT : 0;
break;
}
case SGI_GETNVRAM: {
- char *name = (char *) regs->regs[base+5];
- char *buf = (char *) regs->regs[base+6];
+ char __user *name = (char __user *) regs->regs[base+5];
+ char __user *buf = (char __user *) regs->regs[base+6];
char *value;
return -EINVAL; /* til I fix it */
- if (!access_ok(VERIFY_WRITE, buf, 128)) {
- retval = -EFAULT;
- break;
- }
value = prom_getenv(name); /* PROM lock? */
if (!value) {
retval = -EINVAL;
break;
}
/* Do I strlen() for the length? */
- copy_to_user(buf, value, 128);
- retval = 0;
+ retval = copy_to_user(buf, value, 128) ? -EFAULT : 0;
break;
}
case SGI_SETNVRAM: {
- char *name = (char *) regs->regs[base+5];
- char *value = (char *) regs->regs[base+6];
+ char __user *name = (char __user *) regs->regs[base+5];
+ char __user *value = (char __user *) regs->regs[base+6];
return -EINVAL; /* til I fix it */
retval = prom_setenv(name, value);
/* XXX make sure retval conforms to syssgi(2) */
@@ -401,16 +391,16 @@ asmlinkage int irix_syssgi(struct pt_regs *regs)
case SGI_SETGROUPS:
retval = sys_setgroups((int) regs->regs[base + 5],
- (gid_t *) regs->regs[base + 6]);
+ (gid_t __user *) regs->regs[base + 6]);
break;
case SGI_GETGROUPS:
retval = sys_getgroups((int) regs->regs[base + 5],
- (gid_t *) regs->regs[base + 6]);
+ (gid_t __user *) regs->regs[base + 6]);
break;
case SGI_RUSAGE: {
- struct rusage *ru = (struct rusage *) regs->regs[base + 6];
+ struct rusage __user *ru = (struct rusage __user *) regs->regs[base + 6];
switch((int) regs->regs[base + 5]) {
case 0:
@@ -447,7 +437,7 @@ asmlinkage int irix_syssgi(struct pt_regs *regs)
case SGI_ELFMAP:
retval = irix_mapelf((int) regs->regs[base + 5],
- (struct elf_phdr *) regs->regs[base + 6],
+ (struct elf_phdr __user *) regs->regs[base + 6],
(int) regs->regs[base + 7]);
break;
@@ -462,24 +452,24 @@ asmlinkage int irix_syssgi(struct pt_regs *regs)
case SGI_PHYSP: {
unsigned long addr = regs->regs[base + 5];
- int *pageno = (int *) (regs->regs[base + 6]);
+ int __user *pageno = (int __user *) (regs->regs[base + 6]);
struct mm_struct *mm = current->mm;
pgd_t *pgdp;
+ pud_t *pudp;
pmd_t *pmdp;
pte_t *ptep;
- if (!access_ok(VERIFY_WRITE, pageno, sizeof(int)))
- return -EFAULT;
-
down_read(&mm->mmap_sem);
pgdp = pgd_offset(mm, addr);
- pmdp = pmd_offset(pgdp, addr);
+ pudp = pud_offset(pgdp, addr);
+ pmdp = pmd_offset(pudp, addr);
ptep = pte_offset(pmdp, addr);
retval = -EINVAL;
if (ptep) {
pte_t pte = *ptep;
if (pte_val(pte) & (_PAGE_VALID | _PAGE_PRESENT)) {
+ /* b0rked on 64-bit */
retval = put_user((pte_val(pte) & PAGE_MASK) >>
PAGE_SHIFT, pageno);
}
@@ -490,7 +480,7 @@ asmlinkage int irix_syssgi(struct pt_regs *regs)
case SGI_INVENT: {
int arg1 = (int) regs->regs [base + 5];
- void *buffer = (void *) regs->regs [base + 6];
+ void __user *buffer = (void __user *) regs->regs [base + 6];
int count = (int) regs->regs [base + 7];
switch (arg1) {
@@ -686,8 +676,8 @@ asmlinkage int irix_pause(void)
}
/* XXX need more than this... */
-asmlinkage int irix_mount(char *dev_name, char *dir_name, unsigned long flags,
- char *type, void *data, int datalen)
+asmlinkage int irix_mount(char __user *dev_name, char __user *dir_name,
+ unsigned long flags, char __user *type, void __user *data, int datalen)
{
printk("[%s:%d] irix_mount(%p,%p,%08lx,%p,%p,%d)\n",
current->comm, current->pid,
@@ -702,8 +692,8 @@ struct irix_statfs {
char f_fname[6], f_fpack[6];
};
-asmlinkage int irix_statfs(const char *path, struct irix_statfs *buf,
- int len, int fs_type)
+asmlinkage int irix_statfs(const char __user *path,
+ struct irix_statfs __user *buf, int len, int fs_type)
{
struct nameidata nd;
struct kstatfs kbuf;
@@ -718,6 +708,7 @@ asmlinkage int irix_statfs(const char *path, struct irix_statfs *buf,
error = -EFAULT;
goto out;
}
+
error = user_path_walk(path, &nd);
if (error)
goto out;
@@ -726,18 +717,17 @@ asmlinkage int irix_statfs(const char *path, struct irix_statfs *buf,
if (error)
goto dput_and_out;
- __put_user(kbuf.f_type, &buf->f_type);
- __put_user(kbuf.f_bsize, &buf->f_bsize);
- __put_user(kbuf.f_frsize, &buf->f_frsize);
- __put_user(kbuf.f_blocks, &buf->f_blocks);
- __put_user(kbuf.f_bfree, &buf->f_bfree);
- __put_user(kbuf.f_files, &buf->f_files);
- __put_user(kbuf.f_ffree, &buf->f_ffree);
+ error = __put_user(kbuf.f_type, &buf->f_type);
+ error |= __put_user(kbuf.f_bsize, &buf->f_bsize);
+ error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
+ error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
+ error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
+ error |= __put_user(kbuf.f_files, &buf->f_files);
+ error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
for (i = 0; i < 6; i++) {
- __put_user(0, &buf->f_fname[i]);
- __put_user(0, &buf->f_fpack[i]);
+ error |= __put_user(0, &buf->f_fname[i]);
+ error |= __put_user(0, &buf->f_fpack[i]);
}
- error = 0;
dput_and_out:
path_release(&nd);
@@ -745,7 +735,7 @@ out:
return error;
}
-asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs *buf)
+asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs __user *buf)
{
struct kstatfs kbuf;
struct file *file;
@@ -755,6 +745,7 @@ asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs *buf)
error = -EFAULT;
goto out;
}
+
if (!(file = fget(fd))) {
error = -EBADF;
goto out;
@@ -764,16 +755,17 @@ asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs *buf)
if (error)
goto out_f;
- __put_user(kbuf.f_type, &buf->f_type);
- __put_user(kbuf.f_bsize, &buf->f_bsize);
- __put_user(kbuf.f_frsize, &buf->f_frsize);
- __put_user(kbuf.f_blocks, &buf->f_blocks);
- __put_user(kbuf.f_bfree, &buf->f_bfree);
- __put_user(kbuf.f_files, &buf->f_files);
- __put_user(kbuf.f_ffree, &buf->f_ffree);
- for(i = 0; i < 6; i++) {
- __put_user(0, &buf->f_fname[i]);
- __put_user(0, &buf->f_fpack[i]);
+ error = __put_user(kbuf.f_type, &buf->f_type);
+ error |= __put_user(kbuf.f_bsize, &buf->f_bsize);
+ error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
+ error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
+ error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
+ error |= __put_user(kbuf.f_files, &buf->f_files);
+ error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
+
+ for (i = 0; i < 6; i++) {
+ error |= __put_user(0, &buf->f_fname[i]);
+ error |= __put_user(0, &buf->f_fpack[i]);
}
out_f:
@@ -800,14 +792,15 @@ asmlinkage int irix_setpgrp(int flags)
return error;
}
-asmlinkage int irix_times(struct tms * tbuf)
+asmlinkage int irix_times(struct tms __user *tbuf)
{
int err = 0;
if (tbuf) {
if (!access_ok(VERIFY_WRITE,tbuf,sizeof *tbuf))
return -EFAULT;
- err |= __put_user(current->utime, &tbuf->tms_utime);
+
+ err = __put_user(current->utime, &tbuf->tms_utime);
err |= __put_user(current->stime, &tbuf->tms_stime);
err |= __put_user(current->signal->cutime, &tbuf->tms_cutime);
err |= __put_user(current->signal->cstime, &tbuf->tms_cstime);
@@ -823,13 +816,13 @@ asmlinkage int irix_exec(struct pt_regs *regs)
if(regs->regs[2] == 1000)
base = 1;
- filename = getname((char *) (long)regs->regs[base + 4]);
+ filename = getname((char __user *) (long)regs->regs[base + 4]);
error = PTR_ERR(filename);
if (IS_ERR(filename))
return error;
- error = do_execve(filename, (char **) (long)regs->regs[base + 5],
- (char **) 0, regs);
+ error = do_execve(filename, (char __user * __user *) (long)regs->regs[base + 5],
+ NULL, regs);
putname(filename);
return error;
@@ -842,12 +835,12 @@ asmlinkage int irix_exece(struct pt_regs *regs)
if (regs->regs[2] == 1000)
base = 1;
- filename = getname((char *) (long)regs->regs[base + 4]);
+ filename = getname((char __user *) (long)regs->regs[base + 4]);
error = PTR_ERR(filename);
if (IS_ERR(filename))
return error;
- error = do_execve(filename, (char **) (long)regs->regs[base + 5],
- (char **) (long)regs->regs[base + 6], regs);
+ error = do_execve(filename, (char __user * __user *) (long)regs->regs[base + 5],
+ (char __user * __user *) (long)regs->regs[base + 6], regs);
putname(filename);
return error;
@@ -903,22 +896,17 @@ asmlinkage int irix_socket(int family, int type, int protocol)
return sys_socket(family, type, protocol);
}
-asmlinkage int irix_getdomainname(char *name, int len)
+asmlinkage int irix_getdomainname(char __user *name, int len)
{
- int error;
-
- if (!access_ok(VERIFY_WRITE, name, len))
- return -EFAULT;
+ int err;
down_read(&uts_sem);
if (len > __NEW_UTS_LEN)
len = __NEW_UTS_LEN;
- error = 0;
- if (copy_to_user(name, system_utsname.domainname, len))
- error = -EFAULT;
+ err = copy_to_user(name, system_utsname.domainname, len) ? -EFAULT : 0;
up_read(&uts_sem);
- return error;
+ return err;
}
asmlinkage unsigned long irix_getpagesize(void)
@@ -934,12 +922,13 @@ asmlinkage int irix_msgsys(int opcode, unsigned long arg0, unsigned long arg1,
case 0:
return sys_msgget((key_t) arg0, (int) arg1);
case 1:
- return sys_msgctl((int) arg0, (int) arg1, (struct msqid_ds *)arg2);
+ return sys_msgctl((int) arg0, (int) arg1,
+ (struct msqid_ds __user *)arg2);
case 2:
- return sys_msgrcv((int) arg0, (struct msgbuf *) arg1,
+ return sys_msgrcv((int) arg0, (struct msgbuf __user *) arg1,
(size_t) arg2, (long) arg3, (int) arg4);
case 3:
- return sys_msgsnd((int) arg0, (struct msgbuf *) arg1,
+ return sys_msgsnd((int) arg0, (struct msgbuf __user *) arg1,
(size_t) arg2, (int) arg3);
default:
return -EINVAL;
@@ -951,12 +940,13 @@ asmlinkage int irix_shmsys(int opcode, unsigned long arg0, unsigned long arg1,
{
switch (opcode) {
case 0:
- return do_shmat((int) arg0, (char *)arg1, (int) arg2,
+ return do_shmat((int) arg0, (char __user *) arg1, (int) arg2,
(unsigned long *) arg3);
case 1:
- return sys_shmctl((int)arg0, (int)arg1, (struct shmid_ds *)arg2);
+ return sys_shmctl((int)arg0, (int)arg1,
+ (struct shmid_ds __user *)arg2);
case 2:
- return sys_shmdt((char *)arg0);
+ return sys_shmdt((char __user *)arg0);
case 3:
return sys_shmget((key_t) arg0, (int) arg1, (int) arg2);
default:
@@ -974,7 +964,7 @@ asmlinkage int irix_semsys(int opcode, unsigned long arg0, unsigned long arg1,
case 1:
return sys_semget((key_t) arg0, (int) arg1, (int) arg2);
case 2:
- return sys_semop((int) arg0, (struct sembuf *)arg1,
+ return sys_semop((int) arg0, (struct sembuf __user *)arg1,
(unsigned int) arg2);
default:
return -EINVAL;
@@ -992,15 +982,16 @@ static inline loff_t llseek(struct file *file, loff_t offset, int origin)
lock_kernel();
retval = fn(file, offset, origin);
unlock_kernel();
+
return retval;
}
asmlinkage int irix_lseek64(int fd, int _unused, int offhi, int offlow,
int origin)
{
- int retval;
struct file * file;
loff_t offset;
+ int retval;
retval = -EBADF;
file = fget(fd);
@@ -1025,12 +1016,12 @@ asmlinkage int irix_sginap(int ticks)
return 0;
}
-asmlinkage int irix_sgikopt(char *istring, char *ostring, int len)
+asmlinkage int irix_sgikopt(char __user *istring, char __user *ostring, int len)
{
return -EINVAL;
}
-asmlinkage int irix_gettimeofday(struct timeval *tv)
+asmlinkage int irix_gettimeofday(struct timeval __user *tv)
{
time_t sec;
long nsec, seq;
@@ -1071,7 +1062,7 @@ asmlinkage unsigned long irix_mmap32(unsigned long addr, size_t len, int prot,
if (max_size > file->f_dentry->d_inode->i_size) {
old_pos = sys_lseek (fd, max_size - 1, 0);
- sys_write (fd, "", 1);
+ sys_write (fd, (void __user *) "", 1);
sys_lseek (fd, old_pos, 0);
}
}
@@ -1096,7 +1087,7 @@ asmlinkage int irix_madvise(unsigned long addr, int len, int behavior)
return -EINVAL;
}
-asmlinkage int irix_pagelock(char *addr, int len, int op)
+asmlinkage int irix_pagelock(char __user *addr, int len, int op)
{
printk("[%s:%d] Wheee.. irix_pagelock(%p,%d,%d)\n",
current->comm, current->pid, addr, len, op);
@@ -1136,7 +1127,7 @@ asmlinkage int irix_BSDsetpgrp(int pid, int pgrp)
return error;
}
-asmlinkage int irix_systeminfo(int cmd, char *buf, int cnt)
+asmlinkage int irix_systeminfo(int cmd, char __user *buf, int cnt)
{
printk("[%s:%d] Wheee.. irix_systeminfo(%d,%p,%d)\n",
current->comm, current->pid, cmd, buf, cnt);
@@ -1152,14 +1143,14 @@ struct iuname {
char _unused3[257], _unused4[257], _unused5[257];
};
-asmlinkage int irix_uname(struct iuname *buf)
+asmlinkage int irix_uname(struct iuname __user *buf)
{
down_read(&uts_sem);
- if (copy_to_user(system_utsname.sysname, buf->sysname, 65)
- || copy_to_user(system_utsname.nodename, buf->nodename, 65)
- || copy_to_user(system_utsname.release, buf->release, 65)
- || copy_to_user(system_utsname.version, buf->version, 65)
- || copy_to_user(system_utsname.machine, buf->machine, 65)) {
+ if (copy_from_user(system_utsname.sysname, buf->sysname, 65)
+ || copy_from_user(system_utsname.nodename, buf->nodename, 65)
+ || copy_from_user(system_utsname.release, buf->release, 65)
+ || copy_from_user(system_utsname.version, buf->version, 65)
+ || copy_from_user(system_utsname.machine, buf->machine, 65)) {
return -EFAULT;
}
up_read(&uts_sem);
@@ -1169,7 +1160,7 @@ asmlinkage int irix_uname(struct iuname *buf)
#undef DEBUG_XSTAT
-static int irix_xstat32_xlate(struct kstat *stat, void *ubuf)
+static int irix_xstat32_xlate(struct kstat *stat, void __user *ubuf)
{
struct xstat32 {
u32 st_dev, st_pad1[3], st_ino, st_mode, st_nlink, st_uid, st_gid;
@@ -1209,7 +1200,7 @@ static int irix_xstat32_xlate(struct kstat *stat, void *ubuf)
return copy_to_user(ubuf, &ub, sizeof(ub)) ? -EFAULT : 0;
}
-static int irix_xstat64_xlate(struct kstat *stat, void *ubuf)
+static int irix_xstat64_xlate(struct kstat *stat, void __user *ubuf)
{
struct xstat64 {
u32 st_dev; s32 st_pad1[3];
@@ -1259,7 +1250,7 @@ static int irix_xstat64_xlate(struct kstat *stat, void *ubuf)
return copy_to_user(ubuf, &ks, sizeof(ks)) ? -EFAULT : 0;
}
-asmlinkage int irix_xstat(int version, char *filename, struct stat *statbuf)
+asmlinkage int irix_xstat(int version, char __user *filename, struct stat __user *statbuf)
{
int retval;
struct kstat stat;
@@ -1285,7 +1276,7 @@ asmlinkage int irix_xstat(int version, char *filename, struct stat *statbuf)
return retval;
}
-asmlinkage int irix_lxstat(int version, char *filename, struct stat *statbuf)
+asmlinkage int irix_lxstat(int version, char __user *filename, struct stat __user *statbuf)
{
int error;
struct kstat stat;
@@ -1312,7 +1303,7 @@ asmlinkage int irix_lxstat(int version, char *filename, struct stat *statbuf)
return error;
}
-asmlinkage int irix_fxstat(int version, int fd, struct stat *statbuf)
+asmlinkage int irix_fxstat(int version, int fd, struct stat __user *statbuf)
{
int error;
struct kstat stat;
@@ -1338,7 +1329,7 @@ asmlinkage int irix_fxstat(int version, int fd, struct stat *statbuf)
return error;
}
-asmlinkage int irix_xmknod(int ver, char *filename, int mode, unsigned dev)
+asmlinkage int irix_xmknod(int ver, char __user *filename, int mode, unsigned dev)
{
int retval;
printk("[%s:%d] Wheee.. irix_xmknod(%d,%s,%x,%x)\n",
@@ -1358,7 +1349,7 @@ asmlinkage int irix_xmknod(int ver, char *filename, int mode, unsigned dev)
return retval;
}
-asmlinkage int irix_swapctl(int cmd, char *arg)
+asmlinkage int irix_swapctl(int cmd, char __user *arg)
{
printk("[%s:%d] Wheee.. irix_swapctl(%d,%p)\n",
current->comm, current->pid, cmd, arg);
@@ -1374,7 +1365,7 @@ struct irix_statvfs {
char f_fstr[32]; u32 f_filler[16];
};
-asmlinkage int irix_statvfs(char *fname, struct irix_statvfs *buf)
+asmlinkage int irix_statvfs(char __user *fname, struct irix_statvfs __user *buf)
{
struct nameidata nd;
struct kstatfs kbuf;
@@ -1382,10 +1373,9 @@ asmlinkage int irix_statvfs(char *fname, struct irix_statvfs *buf)
printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
current->comm, current->pid, fname, buf);
- if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
- error = -EFAULT;
- goto out;
- }
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs)))
+ return -EFAULT;
+
error = user_path_walk(fname, &nd);
if (error)
goto out;
@@ -1393,27 +1383,25 @@ asmlinkage int irix_statvfs(char *fname, struct irix_statvfs *buf)
if (error)
goto dput_and_out;
- __put_user(kbuf.f_bsize, &buf->f_bsize);
- __put_user(kbuf.f_frsize, &buf->f_frsize);
- __put_user(kbuf.f_blocks, &buf->f_blocks);
- __put_user(kbuf.f_bfree, &buf->f_bfree);
- __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
- __put_user(kbuf.f_files, &buf->f_files);
- __put_user(kbuf.f_ffree, &buf->f_ffree);
- __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
+ error |= __put_user(kbuf.f_bsize, &buf->f_bsize);
+ error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
+ error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
+ error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
+ error |= __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
+ error |= __put_user(kbuf.f_files, &buf->f_files);
+ error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
+ error |= __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
#ifdef __MIPSEB__
- __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
+ error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
#else
- __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
+ error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
#endif
for (i = 0; i < 16; i++)
- __put_user(0, &buf->f_basetype[i]);
- __put_user(0, &buf->f_flag);
- __put_user(kbuf.f_namelen, &buf->f_namemax);
+ error |= __put_user(0, &buf->f_basetype[i]);
+ error |= __put_user(0, &buf->f_flag);
+ error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
for (i = 0; i < 32; i++)
- __put_user(0, &buf->f_fstr[i]);
-
- error = 0;
+ error |= __put_user(0, &buf->f_fstr[i]);
dput_and_out:
path_release(&nd);
@@ -1421,7 +1409,7 @@ out:
return error;
}
-asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs *buf)
+asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs __user *buf)
{
struct kstatfs kbuf;
struct file *file;
@@ -1430,10 +1418,9 @@ asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs *buf)
printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
current->comm, current->pid, fd, buf);
- if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
- error = -EFAULT;
- goto out;
- }
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs)))
+ return -EFAULT;
+
if (!(file = fget(fd))) {
error = -EBADF;
goto out;
@@ -1442,24 +1429,24 @@ asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs *buf)
if (error)
goto out_f;
- __put_user(kbuf.f_bsize, &buf->f_bsize);
- __put_user(kbuf.f_frsize, &buf->f_frsize);
- __put_user(kbuf.f_blocks, &buf->f_blocks);
- __put_user(kbuf.f_bfree, &buf->f_bfree);
- __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
- __put_user(kbuf.f_files, &buf->f_files);
- __put_user(kbuf.f_ffree, &buf->f_ffree);
- __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
+ error = __put_user(kbuf.f_bsize, &buf->f_bsize);
+ error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
+ error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
+ error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
+ error |= __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
+ error |= __put_user(kbuf.f_files, &buf->f_files);
+ error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
+ error |= __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
#ifdef __MIPSEB__
- __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
+ error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
#else
- __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
+ error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
#endif
for(i = 0; i < 16; i++)
- __put_user(0, &buf->f_basetype[i]);
- __put_user(0, &buf->f_flag);
- __put_user(kbuf.f_namelen, &buf->f_namemax);
- __clear_user(&buf->f_fstr, sizeof(buf->f_fstr));
+ error |= __put_user(0, &buf->f_basetype[i]);
+ error |= __put_user(0, &buf->f_flag);
+ error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
+ error |= __clear_user(&buf->f_fstr, sizeof(buf->f_fstr)) ? -EFAULT : 0;
out_f:
fput(file);
@@ -1483,7 +1470,7 @@ asmlinkage int irix_sigqueue(int pid, int sig, int code, int val)
return -EINVAL;
}
-asmlinkage int irix_truncate64(char *name, int pad, int size1, int size2)
+asmlinkage int irix_truncate64(char __user *name, int pad, int size1, int size2)
{
int retval;
@@ -1516,6 +1503,7 @@ asmlinkage int irix_mmap64(struct pt_regs *regs)
int len, prot, flags, fd, off1, off2, error, base = 0;
unsigned long addr, pgoff, *sp;
struct file *file = NULL;
+ int err;
if (regs->regs[2] == 1000)
base = 1;
@@ -1525,36 +1513,31 @@ asmlinkage int irix_mmap64(struct pt_regs *regs)
prot = regs->regs[base + 6];
if (!base) {
flags = regs->regs[base + 7];
- if (!access_ok(VERIFY_READ, sp, (4 * sizeof(unsigned long)))) {
- error = -EFAULT;
- goto out;
- }
+ if (!access_ok(VERIFY_READ, sp, (4 * sizeof(unsigned long))))
+ return -EFAULT;
fd = sp[0];
- __get_user(off1, &sp[1]);
- __get_user(off2, &sp[2]);
+ err = __get_user(off1, &sp[1]);
+ err |= __get_user(off2, &sp[2]);
} else {
- if (!access_ok(VERIFY_READ, sp, (5 * sizeof(unsigned long)))) {
- error = -EFAULT;
- goto out;
- }
- __get_user(flags, &sp[0]);
- __get_user(fd, &sp[1]);
- __get_user(off1, &sp[2]);
- __get_user(off2, &sp[3]);
+ if (!access_ok(VERIFY_READ, sp, (5 * sizeof(unsigned long))))
+ return -EFAULT;
+ err = __get_user(flags, &sp[0]);
+ err |= __get_user(fd, &sp[1]);
+ err |= __get_user(off1, &sp[2]);
+ err |= __get_user(off2, &sp[3]);
}
- if (off1 & PAGE_MASK) {
- error = -EOVERFLOW;
- goto out;
- }
+ if (err)
+ return err;
+
+ if (off1 & PAGE_MASK)
+ return -EOVERFLOW;
pgoff = (off1 << (32 - PAGE_SHIFT)) | (off2 >> PAGE_SHIFT);
if (!(flags & MAP_ANONYMOUS)) {
- if (!(file = fget(fd))) {
- error = -EBADF;
- goto out;
- }
+ if (!(file = fget(fd)))
+ return -EBADF;
/* Ok, bad taste hack follows, try to think in something else
when reading this */
@@ -1564,7 +1547,7 @@ asmlinkage int irix_mmap64(struct pt_regs *regs)
if (max_size > file->f_dentry->d_inode->i_size) {
old_pos = sys_lseek (fd, max_size - 1, 0);
- sys_write (fd, "", 1);
+ sys_write (fd, (void __user *) "", 1);
sys_lseek (fd, old_pos, 0);
}
}
@@ -1579,7 +1562,6 @@ asmlinkage int irix_mmap64(struct pt_regs *regs)
if (file)
fput(file);
-out:
return error;
}
@@ -1591,7 +1573,7 @@ asmlinkage int irix_dmi(struct pt_regs *regs)
return -EINVAL;
}
-asmlinkage int irix_pread(int fd, char *buf, int cnt, int off64,
+asmlinkage int irix_pread(int fd, char __user *buf, int cnt, int off64,
int off1, int off2)
{
printk("[%s:%d] Wheee.. irix_pread(%d,%p,%d,%d,%d,%d)\n",
@@ -1600,7 +1582,7 @@ asmlinkage int irix_pread(int fd, char *buf, int cnt, int off64,
return -EINVAL;
}
-asmlinkage int irix_pwrite(int fd, char *buf, int cnt, int off64,
+asmlinkage int irix_pwrite(int fd, char __user *buf, int cnt, int off64,
int off1, int off2)
{
printk("[%s:%d] Wheee.. irix_pwrite(%d,%p,%d,%d,%d,%d)\n",
@@ -1632,7 +1614,7 @@ struct irix_statvfs64 {
u32 f_filler[16];
};
-asmlinkage int irix_statvfs64(char *fname, struct irix_statvfs64 *buf)
+asmlinkage int irix_statvfs64(char __user *fname, struct irix_statvfs64 __user *buf)
{
struct nameidata nd;
struct kstatfs kbuf;
@@ -1644,6 +1626,7 @@ asmlinkage int irix_statvfs64(char *fname, struct irix_statvfs64 *buf)
error = -EFAULT;
goto out;
}
+
error = user_path_walk(fname, &nd);
if (error)
goto out;
@@ -1651,27 +1634,25 @@ asmlinkage int irix_statvfs64(char *fname, struct irix_statvfs64 *buf)
if (error)
goto dput_and_out;
- __put_user(kbuf.f_bsize, &buf->f_bsize);
- __put_user(kbuf.f_frsize, &buf->f_frsize);
- __put_user(kbuf.f_blocks, &buf->f_blocks);
- __put_user(kbuf.f_bfree, &buf->f_bfree);
- __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
- __put_user(kbuf.f_files, &buf->f_files);
- __put_user(kbuf.f_ffree, &buf->f_ffree);
- __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
+ error = __put_user(kbuf.f_bsize, &buf->f_bsize);
+ error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
+ error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
+ error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
+ error |= __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
+ error |= __put_user(kbuf.f_files, &buf->f_files);
+ error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
+ error |= __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
#ifdef __MIPSEB__
- __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
+ error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
#else
- __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
+ error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
#endif
for(i = 0; i < 16; i++)
- __put_user(0, &buf->f_basetype[i]);
- __put_user(0, &buf->f_flag);
- __put_user(kbuf.f_namelen, &buf->f_namemax);
+ error |= __put_user(0, &buf->f_basetype[i]);
+ error |= __put_user(0, &buf->f_flag);
+ error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
for(i = 0; i < 32; i++)
- __put_user(0, &buf->f_fstr[i]);
-
- error = 0;
+ error |= __put_user(0, &buf->f_fstr[i]);
dput_and_out:
path_release(&nd);
@@ -1679,7 +1660,7 @@ out:
return error;
}
-asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs *buf)
+asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs __user *buf)
{
struct kstatfs kbuf;
struct file *file;
@@ -1700,24 +1681,24 @@ asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs *buf)
if (error)
goto out_f;
- __put_user(kbuf.f_bsize, &buf->f_bsize);
- __put_user(kbuf.f_frsize, &buf->f_frsize);
- __put_user(kbuf.f_blocks, &buf->f_blocks);
- __put_user(kbuf.f_bfree, &buf->f_bfree);
- __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
- __put_user(kbuf.f_files, &buf->f_files);
- __put_user(kbuf.f_ffree, &buf->f_ffree);
- __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
+ error = __put_user(kbuf.f_bsize, &buf->f_bsize);
+ error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
+ error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
+ error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
+ error |= __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
+ error |= __put_user(kbuf.f_files, &buf->f_files);
+ error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
+ error |= __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
#ifdef __MIPSEB__
- __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
+ error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
#else
- __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
+ error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
#endif
for(i = 0; i < 16; i++)
- __put_user(0, &buf->f_basetype[i]);
- __put_user(0, &buf->f_flag);
- __put_user(kbuf.f_namelen, &buf->f_namemax);
- __clear_user(buf->f_fstr, sizeof(buf->f_fstr[i]));
+ error |= __put_user(0, &buf->f_basetype[i]);
+ error |= __put_user(0, &buf->f_flag);
+ error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
+ error |= __clear_user(buf->f_fstr, sizeof(buf->f_fstr[i])) ? -EFAULT : 0;
out_f:
fput(file);
@@ -1725,9 +1706,9 @@ out:
return error;
}
-asmlinkage int irix_getmountid(char *fname, unsigned long *midbuf)
+asmlinkage int irix_getmountid(char __user *fname, unsigned long __user *midbuf)
{
- int err = 0;
+ int err;
printk("[%s:%d] irix_getmountid(%s, %p)\n",
current->comm, current->pid, fname, midbuf);
@@ -1740,7 +1721,7 @@ asmlinkage int irix_getmountid(char *fname, unsigned long *midbuf)
* fsid of the filesystem to try and make the right decision, but
* we don't have this so for now. XXX
*/
- err |= __put_user(0, &midbuf[0]);
+ err = __put_user(0, &midbuf[0]);
err |= __put_user(0, &midbuf[1]);
err |= __put_user(0, &midbuf[2]);
err |= __put_user(0, &midbuf[3]);
@@ -1767,8 +1748,8 @@ struct irix_dirent32 {
};
struct irix_dirent32_callback {
- struct irix_dirent32 *current_dir;
- struct irix_dirent32 *previous;
+ struct irix_dirent32 __user *current_dir;
+ struct irix_dirent32 __user *previous;
int count;
int error;
};
@@ -1776,13 +1757,13 @@ struct irix_dirent32_callback {
#define NAME_OFFSET32(de) ((int) ((de)->d_name - (char *) (de)))
#define ROUND_UP32(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
-static int irix_filldir32(void *__buf, const char *name, int namlen,
- loff_t offset, ino_t ino, unsigned int d_type)
+static int irix_filldir32(void *__buf, const char *name,
+ int namlen, loff_t offset, ino_t ino, unsigned int d_type)
{
- struct irix_dirent32 *dirent;
- struct irix_dirent32_callback *buf =
- (struct irix_dirent32_callback *)__buf;
+ struct irix_dirent32 __user *dirent;
+ struct irix_dirent32_callback *buf = __buf;
unsigned short reclen = ROUND_UP32(NAME_OFFSET32(dirent) + namlen + 1);
+ int err = 0;
#ifdef DEBUG_GETDENTS
printk("\nirix_filldir32[reclen<%d>namlen<%d>count<%d>]",
@@ -1793,25 +1774,26 @@ static int irix_filldir32(void *__buf, const char *name, int namlen,
return -EINVAL;
dirent = buf->previous;
if (dirent)
- __put_user(offset, &dirent->d_off);
+ err = __put_user(offset, &dirent->d_off);
dirent = buf->current_dir;
- buf->previous = dirent;
- __put_user(ino, &dirent->d_ino);
- __put_user(reclen, &dirent->d_reclen);
- copy_to_user(dirent->d_name, name, namlen);
- __put_user(0, &dirent->d_name[namlen]);
- ((char *) dirent) += reclen;
+ err |= __put_user(dirent, &buf->previous);
+ err |= __put_user(ino, &dirent->d_ino);
+ err |= __put_user(reclen, &dirent->d_reclen);
+ err |= copy_to_user((char __user *)dirent->d_name, name, namlen) ? -EFAULT : 0;
+ err |= __put_user(0, &dirent->d_name[namlen]);
+ dirent = (struct irix_dirent32 __user *) ((char __user *) dirent + reclen);
+
buf->current_dir = dirent;
buf->count -= reclen;
- return 0;
+ return err;
}
-asmlinkage int irix_ngetdents(unsigned int fd, void * dirent,
- unsigned int count, int *eob)
+asmlinkage int irix_ngetdents(unsigned int fd, void __user * dirent,
+ unsigned int count, int __user *eob)
{
struct file *file;
- struct irix_dirent32 *lastdirent;
+ struct irix_dirent32 __user *lastdirent;
struct irix_dirent32_callback buf;
int error;
@@ -1824,7 +1806,7 @@ asmlinkage int irix_ngetdents(unsigned int fd, void * dirent,
if (!file)
goto out;
- buf.current_dir = (struct irix_dirent32 *) dirent;
+ buf.current_dir = (struct irix_dirent32 __user *) dirent;
buf.previous = NULL;
buf.count = count;
buf.error = 0;
@@ -1864,8 +1846,8 @@ struct irix_dirent64 {
};
struct irix_dirent64_callback {
- struct irix_dirent64 *curr;
- struct irix_dirent64 *previous;
+ struct irix_dirent64 __user *curr;
+ struct irix_dirent64 __user *previous;
int count;
int error;
};
@@ -1873,37 +1855,44 @@ struct irix_dirent64_callback {
#define NAME_OFFSET64(de) ((int) ((de)->d_name - (char *) (de)))
#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
-static int irix_filldir64(void * __buf, const char * name, int namlen,
- loff_t offset, ino_t ino, unsigned int d_type)
+static int irix_filldir64(void *__buf, const char *name,
+ int namlen, loff_t offset, ino_t ino, unsigned int d_type)
{
- struct irix_dirent64 *dirent;
- struct irix_dirent64_callback * buf =
- (struct irix_dirent64_callback *) __buf;
+ struct irix_dirent64 __user *dirent;
+ struct irix_dirent64_callback * buf = __buf;
unsigned short reclen = ROUND_UP64(NAME_OFFSET64(dirent) + namlen + 1);
+ int err = 0;
- buf->error = -EINVAL; /* only used if we fail.. */
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)))
+ return -EFAULT;
+
+ if (__put_user(-EINVAL, &buf->error)) /* only used if we fail.. */
+ return -EFAULT;
if (reclen > buf->count)
return -EINVAL;
dirent = buf->previous;
if (dirent)
- __put_user(offset, &dirent->d_off);
+ err = __put_user(offset, &dirent->d_off);
dirent = buf->curr;
buf->previous = dirent;
- __put_user(ino, &dirent->d_ino);
- __put_user(reclen, &dirent->d_reclen);
- __copy_to_user(dirent->d_name, name, namlen);
- __put_user(0, &dirent->d_name[namlen]);
- ((char *) dirent) += reclen;
+ err |= __put_user(ino, &dirent->d_ino);
+ err |= __put_user(reclen, &dirent->d_reclen);
+ err |= __copy_to_user((char __user *)dirent->d_name, name, namlen)
+ ? -EFAULT : 0;
+ err |= __put_user(0, &dirent->d_name[namlen]);
+
+ dirent = (struct irix_dirent64 __user *) ((char __user *) dirent + reclen);
+
buf->curr = dirent;
buf->count -= reclen;
- return 0;
+ return err;
}
-asmlinkage int irix_getdents64(int fd, void *dirent, int cnt)
+asmlinkage int irix_getdents64(int fd, void __user *dirent, int cnt)
{
struct file *file;
- struct irix_dirent64 *lastdirent;
+ struct irix_dirent64 __user *lastdirent;
struct irix_dirent64_callback buf;
int error;
@@ -1923,7 +1912,7 @@ asmlinkage int irix_getdents64(int fd, void *dirent, int cnt)
if (cnt < (sizeof(struct irix_dirent64) + 255))
goto out_f;
- buf.curr = (struct irix_dirent64 *) dirent;
+ buf.curr = (struct irix_dirent64 __user *) dirent;
buf.previous = NULL;
buf.count = cnt;
buf.error = 0;
@@ -1935,7 +1924,8 @@ asmlinkage int irix_getdents64(int fd, void *dirent, int cnt)
error = buf.error;
goto out_f;
}
- lastdirent->d_off = (u64) file->f_pos;
+ if (put_user(file->f_pos, &lastdirent->d_off))
+ return -EFAULT;
#ifdef DEBUG_GETDENTS
printk("returning %d\n", cnt - buf.count);
#endif
@@ -1947,10 +1937,10 @@ out:
return error;
}
-asmlinkage int irix_ngetdents64(int fd, void *dirent, int cnt, int *eob)
+asmlinkage int irix_ngetdents64(int fd, void __user *dirent, int cnt, int *eob)
{
struct file *file;
- struct irix_dirent64 *lastdirent;
+ struct irix_dirent64 __user *lastdirent;
struct irix_dirent64_callback buf;
int error;
@@ -1972,7 +1962,7 @@ asmlinkage int irix_ngetdents64(int fd, void *dirent, int cnt, int *eob)
goto out_f;
*eob = 0;
- buf.curr = (struct irix_dirent64 *) dirent;
+ buf.curr = (struct irix_dirent64 __user *) dirent;
buf.previous = NULL;
buf.count = cnt;
buf.error = 0;
@@ -1984,7 +1974,8 @@ asmlinkage int irix_ngetdents64(int fd, void *dirent, int cnt, int *eob)
error = buf.error;
goto out_f;
}
- lastdirent->d_off = (u64) file->f_pos;
+ if (put_user(file->f_pos, &lastdirent->d_off))
+ return -EFAULT;
#ifdef DEBUG_GETDENTS
printk("eob=%d returning %d\n", *eob, cnt - buf.count);
#endif
@@ -2047,14 +2038,14 @@ out:
return retval;
}
-asmlinkage int irix_utssys(char *inbuf, int arg, int type, char *outbuf)
+asmlinkage int irix_utssys(char __user *inbuf, int arg, int type, char __user *outbuf)
{
int retval;
switch(type) {
case 0:
/* uname() */
- retval = irix_uname((struct iuname *)inbuf);
+ retval = irix_uname((struct iuname __user *)inbuf);
goto out;
case 2:
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index d06db5f8115f..f9a6a5665559 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -339,9 +339,9 @@ asmlinkage void do_be(struct pt_regs *regs)
static inline int get_insn_opcode(struct pt_regs *regs, unsigned int *opcode)
{
- unsigned int *epc;
+ unsigned int __user *epc;
- epc = (unsigned int *) regs->cp0_epc +
+ epc = (unsigned int __user *) regs->cp0_epc +
((regs->cp0_cause & CAUSEF_BD) != 0);
if (!get_user(*opcode, epc))
return 0;
@@ -371,7 +371,7 @@ static struct task_struct *ll_task = NULL;
static inline void simulate_ll(struct pt_regs *regs, unsigned int opcode)
{
- unsigned long value, *vaddr;
+ unsigned long value, __user *vaddr;
long offset;
int signal = 0;
@@ -385,7 +385,8 @@ static inline void simulate_ll(struct pt_regs *regs, unsigned int opcode)
offset <<= 16;
offset >>= 16;
- vaddr = (unsigned long *)((long)(regs->regs[(opcode & BASE) >> 21]) + offset);
+ vaddr = (unsigned long __user *)
+ ((unsigned long)(regs->regs[(opcode & BASE) >> 21]) + offset);
if ((unsigned long)vaddr & 3) {
signal = SIGBUS;
@@ -418,7 +419,8 @@ sig:
static inline void simulate_sc(struct pt_regs *regs, unsigned int opcode)
{
- unsigned long *vaddr, reg;
+ unsigned long __user *vaddr;
+ unsigned long reg;
long offset;
int signal = 0;
@@ -432,7 +434,8 @@ static inline void simulate_sc(struct pt_regs *regs, unsigned int opcode)
offset <<= 16;
offset >>= 16;
- vaddr = (unsigned long *)((long)(regs->regs[(opcode & BASE) >> 21]) + offset);
+ vaddr = (unsigned long __user *)
+ ((unsigned long)(regs->regs[(opcode & BASE) >> 21]) + offset);
reg = (opcode & RT) >> 16;
if ((unsigned long)vaddr & 3) {
@@ -498,7 +501,7 @@ asmlinkage void do_ov(struct pt_regs *regs)
info.si_code = FPE_INTOVF;
info.si_signo = SIGFPE;
info.si_errno = 0;
- info.si_addr = (void *)regs->cp0_epc;
+ info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
}
@@ -584,7 +587,7 @@ asmlinkage void do_bp(struct pt_regs *regs)
info.si_code = FPE_INTOVF;
info.si_signo = SIGFPE;
info.si_errno = 0;
- info.si_addr = (void *)regs->cp0_epc;
+ info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
break;
default:
@@ -621,7 +624,7 @@ asmlinkage void do_tr(struct pt_regs *regs)
info.si_code = FPE_INTOVF;
info.si_signo = SIGFPE;
info.si_errno = 0;
- info.si_addr = (void *)regs->cp0_epc;
+ info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
break;
default:
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index 36c5212e0928..5b5a3736cbbc 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -94,7 +94,7 @@ unsigned long unaligned_instructions;
#endif
static inline int emulate_load_store_insn(struct pt_regs *regs,
- void *addr, unsigned long pc,
+ void __user *addr, unsigned int __user *pc,
unsigned long **regptr, unsigned long *newvalue)
{
union mips_instruction insn;
@@ -107,7 +107,7 @@ static inline int emulate_load_store_insn(struct pt_regs *regs,
/*
* This load never faults.
*/
- __get_user(insn.word, (unsigned int *)pc);
+ __get_user(insn.word, pc);
switch (insn.i_format.opcode) {
/*
@@ -494,8 +494,8 @@ asmlinkage void do_ade(struct pt_regs *regs)
{
unsigned long *regptr, newval;
extern int do_dsemulret(struct pt_regs *);
+ unsigned int __user *pc;
mm_segment_t seg;
- unsigned long pc;
/*
* Address errors may be deliberately induced by the FPU emulator to
@@ -515,7 +515,7 @@ asmlinkage void do_ade(struct pt_regs *regs)
if ((regs->cp0_badvaddr == regs->cp0_epc) || (regs->cp0_epc & 0x1))
goto sigbus;
- pc = exception_epc(regs);
+ pc = (unsigned int __user *) exception_epc(regs);
if ((current->thread.mflags & MF_FIXADE) == 0)
goto sigbus;
@@ -526,7 +526,7 @@ asmlinkage void do_ade(struct pt_regs *regs)
seg = get_fs();
if (!user_mode(regs))
set_fs(KERNEL_DS);
- if (!emulate_load_store_insn(regs, (void *)regs->cp0_badvaddr, pc,
+ if (!emulate_load_store_insn(regs, (void __user *)regs->cp0_badvaddr, pc,
&regptr, &newval)) {
compute_return_epc(regs);
/*
generated by cgit v1.2.3 (git 2.0.4) at 2024-12-28 05:49:28 +0000