linux-toradex.git/fs/proc/base.c, branch v2.6.17.8

Don't allow chmod() on the /proc// files

2006-08-07T03:52:13+00:00

Don't allow chmod() on the /proc// files

This just turns off chmod() on the /proc// files, since there is no
good reason to allow it, and had we disallowed it originally, the nasty
/proc race exploit wouldn't have been possible.

The other patches already fixed the problem chmod() could cause, so this
is really just some final mop-up..

This particular version is based off a patch by Eugene and Marcel which
had much better naming than my original equivalent one.

Signed-off-by: Eugene Teo 
Signed-off-by: Marcel Holtmann 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

[PATCH] Relax /proc fix a bit

2006-07-15T18:58:27+00:00

Relax /proc fix a bit

Clearign all of i_mode was a bit draconian. We only really care about
S_ISUID/ISGID, after all.

Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

[PATCH] Fix nasty /proc vulnerability (CVE-2006-3626)

2006-07-15T02:35:20+00:00

Fix nasty /proc vulnerability

We have a bad interaction with both the kernel and user space being able
to change some of the /proc file status.  This fixes the most obvious
part of it, but I expect we'll also make it harder for users to modify
even their "own" files in /proc.

Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

[PATCH] Fix file lookup without ref

2006-04-19T16:13:51+00:00

There are places in the kernel where we look up files in fd tables and
access the file structure without holding refereces to the file.  So, we
need special care to avoid the race between looking up files in the fd
table and tearing down of the file in another CPU.  Otherwise, one might
see a NULL f_dentry or such torn down version of the file.  This patch
fixes those special places where such a race may happen.

Signed-off-by: Dipankar Sarma 
Acked-by: "Paul E. McKenney" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] cleanup in proc_check_chroot()

2006-03-31T20:18:59+00:00

proc_check_chroot() does the check in a very unintuitive way (keeping a
copy of the argument, then modifying the argument), and has uncommented
sideeffects.

Signed-off-by: Herbert Poetzl 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

VFS: New /proc file /proc/self/mountstats

2006-03-20T18:44:12+00:00

Create a new file under /proc/self, called mountstats, where mounted file
systems can export information (configuration options, performance counters,
and so on).  Use a mechanism similar to /proc/mounts and s_ops->show_options.

This mechanism does not violate namespace security, and is safe to use while
other processes are unmounting file systems.

Thanks to Mike Waychison for his review and comments.

Test-plan:
Test concurrent mount/unmount operations while cat'ing /proc/self/mountstats.

Signed-off-by: Chuck Lever 
Signed-off-by: Trond Myklebust

[PATCH] capable/capability.h (fs/)

2006-01-12T02:42:13+00:00

fs: Use  where capable() is used.

Signed-off-by: Randy Dunlap 
Acked-by: Tim Schmielau 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] make /proc/mounts pollable

2005-11-08T02:18:10+00:00

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[PATCH] nommu build error fix

2005-10-15T00:10:13+00:00

"proc_smaps_operations" is not defined in case of "CONFIG_MMU=n".

Signed-off-by: Yoshinori Sato 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] proc_task_root_link c99 fix

2005-09-23T05:17:33+00:00

fs/proc/base.c: In function `proc_task_root_link':
fs/proc/base.c:364: warning: ISO C90 forbids mixed declarations and code

Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds