From: <gregkh@linuxfoundation.org>
To: Dave.Martin@arm.com, davem@davemloft.net,
gregkh@linuxfoundation.org, torvalds@linux-foundation.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "sparc/ptrace: Preserve previous registers for short regset write" has been added to the 3.18-stable tree
Date: Tue, 18 Apr 2017 20:34:37 +0200 [thread overview]
Message-ID: <149254047730207@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
sparc/ptrace: Preserve previous registers for short regset write
to the 3.18-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:
sparc-ptrace-preserve-previous-registers-for-short-regset-write.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From d3805c546b275c8cc7d40f759d029ae92c7175f2 Mon Sep 17 00:00:00 2001
From: Dave Martin <Dave.Martin@arm.com>
Date: Mon, 27 Mar 2017 15:10:59 +0100
Subject: sparc/ptrace: Preserve previous registers for short regset write
From: Dave Martin <Dave.Martin@arm.com>
commit d3805c546b275c8cc7d40f759d029ae92c7175f2 upstream.
Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET
to fill all the registers, the thread's old registers are preserved.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/sparc/kernel/ptrace_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -311,7 +311,7 @@ static int genregs64_set(struct task_str
}
if (!ret) {
- unsigned long y;
+ unsigned long y = regs->y;
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
&y,
Patches currently in stable-queue which might be from Dave.Martin@arm.com are
queue-3.18/metag-ptrace-reject-partial-nt_metag_rpipe-writes.patch
queue-3.18/metag-ptrace-preserve-previous-registers-for-short-regset-write.patch
queue-3.18/metag-ptrace-provide-default-txstatus-for-short-nt_prstatus.patch
queue-3.18/c6x-ptrace-remove-useless-ptrace_setregset-implementation.patch
queue-3.18/mips-ptrace-preserve-previous-registers-for-short-regset-write.patch
queue-3.18/sparc-ptrace-preserve-previous-registers-for-short-regset-write.patch
reply other threads:[~2017-04-18 18:35 UTC|newest]
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