This is a note to let you know that I've just added the patch titled
fs: handle failed audit_log_start properly
to the 3.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fs-handle-failed-audit_log_start-properly.patch
and it can be found in the queue-3.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From d1c7d97ad58836affde6e39980b96527510b572e Mon Sep 17 00:00:00 2001
From: Sasha Levin <[email protected]>
Date: Thu, 4 Oct 2012 19:57:31 -0400
Subject: fs: handle failed audit_log_start properly
From: Sasha Levin <[email protected]>
commit d1c7d97ad58836affde6e39980b96527510b572e upstream.
audit_log_start() may return NULL, this is unchecked by the caller in
audit_log_link_denied() and could cause a NULL ptr deref.
Introduced by commit a51d9eaa ("fs: add link restriction audit reporting").
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Al Viro <[email protected]>
Cc: Dave Jones <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
kernel/audit.c | 2 ++
1 file changed, 2 insertions(+)
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1466,6 +1466,8 @@ void audit_log_link_denied(const char *o
ab = audit_log_start(current->audit_context, GFP_KERNEL,
AUDIT_ANOM_LINK);
+ if (!ab)
+ return;
audit_log_format(ab, "op=%s action=denied", operation);
audit_log_format(ab, " pid=%d comm=", current->pid);
audit_log_untrustedstring(ab, current->comm);
Patches currently in stable-queue which might be from [email protected] are
queue-3.6/fs-handle-failed-audit_log_start-properly.patch
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