Package: kernel-source-2.6.8
Severity: important
Tags: security
<[EMAIL PROTECTED]>
[PATCH] Fix reproducible SMP crash in security/keys/key.c
Jani Jaakkola <[EMAIL PROTECTED]> wrote:
>
> SMP race handling is broken in key_user_lookup() in
security/keys/key.c
This was fixed post-2.6.11. Can you confirm that 2.6.12-rc2 works OK?
This is the patch we used. It should go into -stable if it's not
already
there.
From: Alexander Nyberg <[EMAIL PROTECTED]>
I looked at some of the oops reports against keyrings, I think the
problem
is that the search isn't restarted after dropping the key_user_lock, *p
will still be NULL when we get back to try_again and look through the
tree.
It looks like the intention was that the search start over from scratch.
Signed-off-by: Alexander Nyberg <[EMAIL PROTECTED]>
Cc: David Howells <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Chris Wright <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
The fix is part of the 2.6.11.8 series:
www.kernel.org/diff/diffview.cgi?file=%2Fpub%2Flinux%2Fkernel%2Fv2.6%2Fincr%2Fpatch-2.6.11.7-8.bz2;z=13
Cheers,
Moritz
-- System Information:
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