kernel/git/stable/linux.git/fs/proc/base.c, branch linux-2.6.16.y

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

2006-11-08T07:10:30+00:00

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: Adrian Bunk

[PATCH] Relax /proc fix a bit

2006-07-15T19:45:13+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)

2006-07-15T02:30:51+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

2006-04-24T16:56:05+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 Signed-off-by: Greg Kroah-Hartman

[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

[PATCH] Fix invisible threads problem

2005-09-21T16:15:34+00:00

When the main thread of a thread group has done pthread_exit() and died, the other threads are still happily running, but will not be visible under /proc because their leader is no longer accessible. This fixes the access control so that we can see the sub-threads again. Signed-off-by: Sripathi Kodi Acked-by: Al Viro Signed-off-by: Linus Torvalds

[PATCH] files: lock-free fd look-up

2005-09-09T20:57:55+00:00

With the use of RCU in files structure, the look-up of files using fds can now be lock-free. The lookup is protected by rcu_read_lock()/rcu_read_unlock(). This patch changes the readers to use lock-free lookup. Signed-off-by: Maneesh Soni Signed-off-by: Ravikiran Thirumalai Signed-off-by: Dipankar Sarma Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds