This is a note to let you know that I've just added the patch titled
iscsi-target: fix extract_param to handle buffer length corner case
to the 3.12-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:
iscsi-target-fix-extract_param-to-handle-buffer-length-corner-case.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 369653e4fb511928511b0ce81f41c812ff1f28b6 Mon Sep 17 00:00:00 2001
From: Eric Seppanen <eric@xxxxxxxxxxxxxxx>
Date: Wed, 20 Nov 2013 14:19:51 -0800
Subject: iscsi-target: fix extract_param to handle buffer length corner case
From: Eric Seppanen <eric@xxxxxxxxxxxxxxx>
commit 369653e4fb511928511b0ce81f41c812ff1f28b6 upstream.
extract_param() is called with max_length set to the total size of the
output buffer. It's not safe to allow a parameter length equal to the
buffer size as the terminating null would be written one byte past the
end of the output buffer.
Signed-off-by: Eric Seppanen <eric@xxxxxxxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/target/iscsi/iscsi_target_nego.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -88,7 +88,7 @@ int extract_param(
if (len < 0)
return -1;
- if (len > max_length) {
+ if (len >= max_length) {
pr_err("Length of input: %d exceeds max_length:"
" %d\n", len, max_length);
return -1;
Patches currently in stable-queue which might be from eric@xxxxxxxxxxxxxxx are
queue-3.12/iscsi-target-fix-extract_param-to-handle-buffer-length-corner-case.patch
queue-3.12/iscsi-target-chap-auth-shouldn-t-match-username-with-trailing-garbage.patch
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