| commit | 1c0cd1eb0fff83be95a3fcec991ba4f1b09ff18b | |
| author | Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> | |
| Fri, 4 Feb 2011 18:13:24 +0000 (4 18:13 +0000) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Wed, 2 Mar 2011 14:46:38 +0000 (2 09:46 -0500) | ||
| tree | 834a54141b8271b86ba5dafb0c879190702ec555 | treesnapshot (tar.gz zip) |
| parent | 58ce8fabb2491dc60d03713ed12863affcdb1e73 | commitdiff |
CRED: Fix kernel panic upon security_file_alloc() failure.
commit 78d2978874e4e10e97dfd4fd79db45bdc0748550 upstream.
In get_empty_filp() since 2.6.29, file_free(f) is called with f->f_cred == NULL
when security_file_alloc() returned an error. As a result, kernel will panic()
due to put_cred(NULL) call within RCU callback.
Fix this bug by assigning f->f_cred before calling security_file_alloc().
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 78d2978874e4e10e97dfd4fd79db45bdc0748550 upstream.
In get_empty_filp() since 2.6.29, file_free(f) is called with f->f_cred == NULL
when security_file_alloc() returned an error. As a result, kernel will panic()
due to put_cred(NULL) call within RCU callback.
Fix this bug by assigning f->f_cred before calling security_file_alloc().
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| fs/file_table.c | diffblobblamehistory |