diff options
Diffstat (limited to 'arch/arm64/kernel/signal32.c')
| -rw-r--r-- | arch/arm64/kernel/signal32.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c index d26fcd4cd6e6..948f0ad2de23 100644 --- a/arch/arm64/kernel/signal32.c +++ b/arch/arm64/kernel/signal32.c @@ -168,7 +168,8 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from) * Other callers might not initialize the si_lsb field, * so check explicitely for the right codes here. */ - if (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO) + if (from->si_signo == SIGBUS && + (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO)) err |= __put_user(from->si_addr_lsb, &to->si_addr_lsb); #endif break; @@ -201,8 +202,6 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from) int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from) { - memset(to, 0, sizeof *to); - if (copy_from_user(to, from, __ARCH_SI_PREAMBLE_SIZE) || copy_from_user(to->_sifields._pad, from->_sifields._pad, SI_PAD_SIZE)) @@ -370,7 +369,7 @@ badframe: if (show_unhandled_signals) pr_info_ratelimited("%s[%d]: bad frame in %s: pc=%08llx sp=%08llx\n", current->comm, task_pid_nr(current), __func__, - regs->pc, regs->sp); + regs->pc, regs->compat_sp); force_sig(SIGSEGV, current); return 0; } @@ -407,7 +406,7 @@ badframe: if (show_unhandled_signals) pr_info_ratelimited("%s[%d]: bad frame in %s: pc=%08llx sp=%08llx\n", current->comm, task_pid_nr(current), __func__, - regs->pc, regs->sp); + regs->pc, regs->compat_sp); force_sig(SIGSEGV, current); return 0; } |