Patch "s390/bpf,jit: initialize A register if 1st insn is BPF_S_LDX_B_MSH" has been added to the 3.14-stable tree

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

    s390/bpf,jit: initialize A register if 1st insn is BPF_S_LDX_B_MSH

to the 3.14-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:
     s390-bpf-jit-initialize-a-register-if-1st-insn-is-bpf_s_ldx_b_msh.patch
and it can be found in the queue-3.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 6e0de817594c61f3b392a9245deeb09609ec707d Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Date: Fri, 25 Apr 2014 10:53:44 +0200
Subject: s390/bpf,jit: initialize A register if 1st insn is BPF_S_LDX_B_MSH

From: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>

commit 6e0de817594c61f3b392a9245deeb09609ec707d upstream.

The A register needs to be initialized to zero in the prolog if the
first instruction of the BPF program is BPF_S_LDX_B_MSH to prevent
leaking the content of %r5 to user space.

Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 arch/s390/net/bpf_jit_comp.c |    1 -
 1 file changed, 1 deletion(-)

--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -276,7 +276,6 @@ static void bpf_jit_noleaks(struct bpf_j
 	case BPF_S_LD_W_IND:
 	case BPF_S_LD_H_IND:
 	case BPF_S_LD_B_IND:
-	case BPF_S_LDX_B_MSH:
 	case BPF_S_LD_IMM:
 	case BPF_S_LD_MEM:
 	case BPF_S_MISC_TXA:


Patches currently in stable-queue which might be from schwidefsky@xxxxxxxxxx are

queue-3.14/s390-bpf-jit-initialize-a-register-if-1st-insn-is-bpf_s_ldx_b_msh.patch
queue-3.14/s390-chsc-fix-sei-usage-on-old-fw-levels.patch
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