This is a note to let you know that I've just added the patch titled
bug: use %pB in BUG and stack protector failure
to the 4.14-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:
bug-use-pb-in-bug-and-stack-protector-failure.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0862ca422b79cb5aa70823ee0f07f6b468f86070 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@xxxxxxxxxxxx>
Date: Fri, 9 Mar 2018 15:50:59 -0800
Subject: bug: use %pB in BUG and stack protector failure
From: Kees Cook <keescook@xxxxxxxxxxxx>
commit 0862ca422b79cb5aa70823ee0f07f6b468f86070 upstream.
The BUG and stack protector reports were still using a raw %p. This
changes it to %pB for more meaningful output.
Link: http://lkml.kernel.org/r/20180301225704.GA34198@beast
Fixes: ad67b74d2469 ("printk: hash addresses printed with %p")
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Richard Weinberger <richard.weinberger@xxxxxxxxx>,
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
kernel/panic.c | 2 +-
lib/bug.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -595,7 +595,7 @@ EXPORT_SYMBOL(warn_slowpath_null);
*/
__visible void __stack_chk_fail(void)
{
- panic("stack-protector: Kernel stack is corrupted in: %p\n",
+ panic("stack-protector: Kernel stack is corrupted in: %pB\n",
__builtin_return_address(0));
}
EXPORT_SYMBOL(__stack_chk_fail);
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -191,7 +191,7 @@ enum bug_trap_type report_bug(unsigned l
if (file)
pr_crit("kernel BUG at %s:%u!\n", file, line);
else
- pr_crit("Kernel BUG at %p [verbose debug info unavailable]\n",
+ pr_crit("Kernel BUG at %pB [verbose debug info unavailable]\n",
(void *)bugaddr);
return BUG_TRAP_TYPE_BUG;
Patches currently in stable-queue which might be from keescook@xxxxxxxxxxxx are
queue-4.14/bug-use-pb-in-bug-and-stack-protector-failure.patch
queue-4.14/lib-bug.c-exclude-non-bug-warn-exceptions-from-report_bug.patch