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From: Thomas Gleixner <tglx@linutronix.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org
Subject: [GIT pull] timers/urgent for v5.15-rc3
Date: Sun, 26 Sep 2021 12:30:07 +0200 (CEST)	[thread overview]
Message-ID: <163265189373.178609.1258692845178002939.tglx@xen13> (raw)
In-Reply-To: 163265189226.178609.9712455554034472888.tglx@xen13

Linus,

please pull the latest timers/urgent branch from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-urgent-2021-09-26

up to:  8cd9da85d2bd: posix-cpu-timers: Prevent spuriously armed 0-value itimer


A single fix for the recently introduced regression in posix CPU timers
which failed to stop the timer when requested. That caused unexpected
signals to be sent to the process/thread causing malfunction.

Thanks,

	tglx

------------------>
Frederic Weisbecker (1):
      posix-cpu-timers: Prevent spuriously armed 0-value itimer


 kernel/time/posix-cpu-timers.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index ee736861b18f..643d412ac623 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -1404,7 +1404,8 @@ void set_process_cpu_timer(struct task_struct *tsk, unsigned int clkid,
 			}
 		}
 
-		*newval += now;
+		if (*newval)
+			*newval += now;
 	}
 
 	/*


  reply	other threads:[~2021-09-26 10:30 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-26 10:30 [GIT pull] irq/urgent for v5.15-rc3 Thomas Gleixner
2021-09-26 10:30 ` Thomas Gleixner [this message]
2021-09-26 17:27   ` [GIT pull] timers/urgent " pr-tracker-bot
2021-09-26 10:30 ` [GIT pull] x86/urgent " Thomas Gleixner
2021-09-26 17:21   ` Linus Torvalds
2021-09-26 18:15     ` Borislav Petkov
2021-09-26 19:10       ` Linus Torvalds
2021-09-28 17:56         ` Borislav Petkov
2021-09-28 20:13           ` Linus Torvalds
2021-09-28 20:41             ` Borislav Petkov
2021-09-28 22:44               ` Linus Torvalds
2021-09-29 18:10                 ` [PATCH] x86/insn: Use get_unaligned() instead of memcpy() Borislav Petkov
2021-09-30  0:00                   ` Masami Hiramatsu
2021-10-04  9:48                   ` [tip: x86/misc] " tip-bot2 for Borislav Petkov
2021-10-06 10:02                   ` tip-bot2 for Borislav Petkov
2021-09-26 17:27   ` [GIT pull] x86/urgent for v5.15-rc3 pr-tracker-bot
2021-09-26 17:27 ` [GIT pull] irq/urgent " pr-tracker-bot

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