This is a note to let you know that I've just added the patch titled
um: Add missing apply_returns()
to the 5.15-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:
um-add-missing-apply_returns.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 637285e7f8d6da70a70c64e7895cb0672357a1f7 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Thu, 14 Jul 2022 12:20:19 +0200
Subject: um: Add missing apply_returns()
From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
commit 637285e7f8d6da70a70c64e7895cb0672357a1f7 upstream.
Implement apply_returns() stub for UM, just like all the other patching
routines.
Fixes: 15e67227c49a ("x86: Undo return-thunk damage")
Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx)
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/um/kernel/um_arch.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -437,6 +437,10 @@ void apply_returns(s32 *start, s32 *end)
{
}
+void apply_returns(s32 *start, s32 *end)
+{
+}
+
void apply_alternatives(struct alt_instr *start, struct alt_instr *end)
{
}
Patches currently in stable-queue which might be from peterz@xxxxxxxxxxxxx are
queue-5.15/um-add-missing-apply_returns.patch
