diff options
| author | Linus Torvalds <torvalds@osdl.org> | 2006-07-14 23:59:02 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-07-14 19:35:20 -0700 |
| commit | 4a7ac3ab06932949d3069c1811f6f2a310f656c4 (patch) | |
| tree | 6b797c1a443502c1d8275a5b4340b1d2b496506d /fs | |
| parent | 4f9619cdd90ac846fa0ca6e9e8a9d87a0d6b4f57 (diff) | |
[PATCH] Fix nasty /proc vulnerability (CVE-2006-3626)
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 <torvalds@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/proc/base.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index 6cc77dc3f3ff..5a8b89a8a467 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1404,6 +1404,7 @@ static int pid_revalidate(struct dentry *dentry, struct nameidata *nd) } else { inode->i_uid = 0; inode->i_gid = 0; + inode->i_mode = 0; } security_task_to_inode(task, inode); return 1; |