This is a note to let you know that I've just added the patch titled
parisc: Handle kprobes breakpoints only in kernel context
to the 6.3-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:
parisc-handle-kprobes-breakpoints-only-in-kernel-context.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From df419492e428b6a2bce98d0f613c58a13da6666c Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@xxxxxx>
Date: Wed, 24 May 2023 14:31:14 +0200
Subject: parisc: Handle kprobes breakpoints only in kernel context
From: Helge Deller <deller@xxxxxx>
commit df419492e428b6a2bce98d0f613c58a13da6666c upstream.
The kernel kprobes break instructions should only be handled when running
in kernel context.
Cc: <stable@xxxxxxxxxxxxxxx> # v5.18+
Signed-off-by: Helge Deller <deller@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/parisc/kernel/traps.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -291,11 +291,11 @@ static void handle_break(struct pt_regs
}
#ifdef CONFIG_KPROBES
- if (unlikely(iir == PARISC_KPROBES_BREAK_INSN)) {
+ if (unlikely(iir == PARISC_KPROBES_BREAK_INSN && !user_mode(regs))) {
parisc_kprobe_break_handler(regs);
return;
}
- if (unlikely(iir == PARISC_KPROBES_BREAK_INSN2)) {
+ if (unlikely(iir == PARISC_KPROBES_BREAK_INSN2 && !user_mode(regs))) {
parisc_kprobe_ss_handler(regs);
return;
}
Patches currently in stable-queue which might be from deller@xxxxxx are
queue-6.3/parisc-allow-to-reboot-machine-after-system-halt.patch
queue-6.3/parisc-handle-kgdb-breakpoints-only-in-kernel-context.patch
queue-6.3/parisc-handle-kprobes-breakpoints-only-in-kernel-context.patch
queue-6.3/parisc-use-num_present_cpus-in-alternative-patching-code.patch
queue-6.3/parisc-fix-flush_dcache_page-for-usage-from-irq-context.patch
queue-6.3/parisc-enable-lockdep-support.patch
