This is a note to let you know that I've just added the patch titled
lkdtm/bugs: XFAIL UNALIGNED_LOAD_STORE_WRITE
to the 5.12-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:
lkdtm-bugs-xfail-unaligned_load_store_write.patch
and it can be found in the queue-5.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a15676ac8f24a9ac5fd881cf17be4be13fa0910a Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@xxxxxxxxxxxx>
Date: Wed, 23 Jun 2021 13:39:31 -0700
Subject: lkdtm/bugs: XFAIL UNALIGNED_LOAD_STORE_WRITE
From: Kees Cook <keescook@xxxxxxxxxxxx>
commit a15676ac8f24a9ac5fd881cf17be4be13fa0910a upstream.
When built under CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS, this test is
expected to fail (i.e. not trip an exception).
Fixes: 46d1a0f03d66 ("selftests/lkdtm: Add tests for LKDTM targets")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210623203936.3151093-5-keescook@xxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/misc/lkdtm/bugs.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/misc/lkdtm/bugs.c
+++ b/drivers/misc/lkdtm/bugs.c
@@ -144,6 +144,9 @@ void lkdtm_UNALIGNED_LOAD_STORE_WRITE(vo
if (*p == 0)
val = 0x87654321;
*p = val;
+
+ if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS))
+ pr_err("XFAIL: arch has CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS\n");
}
void lkdtm_SOFTLOCKUP(void)
Patches currently in stable-queue which might be from keescook@xxxxxxxxxxxx are
queue-5.12/selftests-lkdtm-fix-expected-text-for-cr4-pinning.patch
queue-5.12/wireless-wext-spy-fix-out-of-bounds-warning.patch
queue-5.12/drm-i915-display-do-not-zero-past-infoframes.vsc.patch
queue-5.12/drm-amd-display-avoid-hdcp-over-read-and-corruption.patch
queue-5.12/lkdtm-bugs-xfail-unaligned_load_store_write.patch
queue-5.12/qemu_fw_cfg-make-fw_cfg_rev_attr-a-proper-kobj_attribute.patch
queue-5.12/lkdtm-enable-double_fault-on-all-architectures.patch
queue-5.12/docs-makefile-use-config_shell-not-shell.patch
