linux-kernel - [GIT PULL] WARN() fix

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Message-ID: <ZQc4EdCAFDOHpVM+@gmail.com>
Date:   Sun, 17 Sep 2023 19:32:01 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] WARN() fix


Linus,

Please pull the latest core/urgent git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-urgent-2023-09-17

   # HEAD: cccd32816506cbac3a4c65d9dff51b3125ef1a03 panic: Reenable preemption in WARN slowpath

Fix a missing preempt-enable in the WARN() slowpath.

 Thanks,

	Ingo

------------------>
Lukas Wunner (1):
      panic: Reenable preemption in WARN slowpath


 kernel/panic.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/panic.c b/kernel/panic.c
index 07239d4ad81e..ffa037fa777d 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -697,6 +697,7 @@ void warn_slowpath_fmt(const char *file, int line, unsigned taint,
 	if (!fmt) {
 		__warn(file, line, __builtin_return_address(0), taint,
 		       NULL, NULL);
+		warn_rcu_exit(rcu);
 		return;
 	}