The patch titled
Subject: bug: use %pB in BUG and stack protector failure
has been added to the -mm tree. Its filename is
bug-use-%pb-in-bug-and-stack-protector-failure.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/bug-use-%25pb-in-bug-and-stack-protector-failure.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/bug-use-%25pb-in-bug-and-stack-protector-failure.patch
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------------------------------------------------------
From: Kees Cook <keescook@xxxxxxxxxxxx>
Subject: bug: use %pB in BUG and stack protector failure
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>
---
kernel/panic.c | 2 +-
lib/bug.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff -puN kernel/panic.c~bug-use-%pb-in-bug-and-stack-protector-failure kernel/panic.c
--- a/kernel/panic.c~bug-use-%pb-in-bug-and-stack-protector-failure
+++ a/kernel/panic.c
@@ -629,7 +629,7 @@ device_initcall(register_warn_debugfs);
*/
__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);
diff -puN lib/bug.c~bug-use-%pb-in-bug-and-stack-protector-failure lib/bug.c
--- a/lib/bug.c~bug-use-%pb-in-bug-and-stack-protector-failure
+++ a/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 -mm which might be from keescook@xxxxxxxxxxxx are
bug-use-%pb-in-bug-and-stack-protector-failure.patch
taint-convert-to-indexed-initialization.patch
taint-consolidate-documentation.patch
taint-add-taint-for-randstruct.patch
fork-unconditionally-clear-stack-on-fork.patch
exec-pass-stack-rlimit-into-mm-layout-functions.patch
exec-introduce-finalize_exec-before-start_thread.patch
exec-pin-stack-limit-during-exec.patch