CRED: Fix kernel panic upon security_file_alloc() failure.

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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>

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Tetsuo Handa 2011-02-04 18:13:24 +00:00 • committed by Linus Torvalds

parent bb5b583b52

commit 78d2978874

1 changed files with 1 additions and 1 deletions

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fs/file_table.c

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