Patch "x86/signals: Fix lower/upper bound reporting in compat 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

x86/signals: Fix lower/upper bound reporting in compat 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:
x86-signals-fix-lower-upper-bound-reporting-in-compat-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: Joerg Roedel <[email protected]>
Date: Tue, 4 Apr 2017 18:15:01 +0200
Subject: x86/signals: Fix lower/upper bound reporting in compat siginfo

From: Joerg Roedel <[email protected]>

commit cfac6dfa42bddfa9711b20d486e521d1a41ab09f upstream.

Put the right values from the original siginfo into the userspace compat-siginfo.

This fixes the 32-bit MPX "tabletest" testcase on 64-bit kernels.

---
 arch/x86/kernel/signal_compat.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

@@ -151,8 +151,8 @@ int __copy_siginfo_to_user32(compat_sigi
 
 				if (from->si_signo == SIGSEGV) {
 					if (from->si_code == SEGV_BNDERR) {
-						compat_uptr_t lower = (unsigned long)&to->si_lower;
-						compat_uptr_t upper = (unsigned long)&to->si_upper;
+						compat_uptr_t lower = (unsigned long)from->si_lower;
+						compat_uptr_t upper = (unsigned long)from->si_upper;
 						put_user_ex(lower, &to->si_lower);
 						put_user_ex(upper, &to->si_upper);
 					}

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

queue-4.9/x86-signals-fix-lower-upper-bound-reporting-in-compat-siginfo.patch