Patch "selftests, x86, protection_keys: fix wrong offset in siginfo" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

selftests, x86, protection_keys: fix wrong offset in siginfo

to the 4.9-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:
selftests-x86-protection_keys-fix-wrong-offset-in-siginfo.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Dave Hansen <[email protected]>
Date: Fri, 3 Feb 2017 10:51:35 -0800
Subject: selftests, x86, protection_keys: fix wrong offset in siginfo

From: Dave Hansen <[email protected]>

commit 2195bff041486eb7fcceaf058acaedcd057efbdc upstream.

The siginfo contains a bunch of information about the fault. For protection keys, it tells us which protection key's permissions were violated.

The wrong offset in here leads to reading garbage and thus failures in the tests.

We should probably eventually move this over to using the kernel's headers defining the siginfo instead of a hard-coded offset. But, for now, just do the simplest fix.

---
 tools/testing/selftests/x86/protection_keys.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -192,7 +192,7 @@ void lots_o_noops_around_write(int *writ
 #define SYS_pkey_alloc	 381
 #define SYS_pkey_free	 382
 #define REG_IP_IDX REG_EIP
-#define si_pkey_offset 0x18
+#define si_pkey_offset 0x14
 #else
 #define SYS_mprotect_key 329
 #define SYS_pkey_alloc	 330

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/x86-pkeys-selftests-rename-si_pkey-to-siginfo_pkey.patch queue-4.9/signal-testing-don-t-look-for-__si_fault-in-userspace.patch queue-4.9/selftests-x86-protection_keys-fix-wrong-offset-in-siginfo.patch