This is a note to let you know that I've just added the patch titled
use clamp_t in UNAME26 fix
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:
use-clamp_t-in-uname26-fix.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 31fd84b95eb211d5db460a1dda85e004800a7b52 Mon Sep 17 00:00:00 2001
From: Kees Cook <[email protected]>
Date: Fri, 19 Oct 2012 18:45:53 -0700
Subject: use clamp_t in UNAME26 fix
From: Kees Cook <[email protected]>
commit 31fd84b95eb211d5db460a1dda85e004800a7b52 upstream.
The min/max call needed to have explicit types on some architectures
(e.g. mn10300). Use clamp_t instead to avoid the warning:
kernel/sys.c: In function 'override_release':
kernel/sys.c:1287:10: warning: comparison of distinct pointer types lacks a
cast [enabled by default]
Reported-by: Fengguang Wu <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
kernel/sys.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1284,7 +1284,7 @@ static int override_release(char __user
rest++;
}
v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 40;
- copy = min(sizeof(buf), max_t(size_t, 1, len));
+ copy = clamp_t(size_t, len, 1, sizeof(buf));
copy = scnprintf(buf, copy, "2.6.%u%s", v, rest);
ret = copy_to_user(release, buf, copy + 1);
}
Patches currently in stable-queue which might be from [email protected] are
queue-3.6/use-clamp_t-in-uname26-fix.patch
queue-3.6/kernel-sys.c-fix-stack-memory-content-leak-via-uname26.patch
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