From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Sam Sun <samsun1006219@gmail.com>,
x86@kernel.org, syzkaller-bugs@googlegroups.com,
xrivendell7@gmail.com
Subject: [patch 0/4] perf/x86, jump_label: Cure serialization issues
Date: Mon, 10 Jun 2024 14:46:34 +0200 (CEST) [thread overview]
Message-ID: <20240610124258.109097511@linutronix.de> (raw)
In-Reply-To: 87bk49xf15.ffs@tglx
Yue and Xingwei reported a syzkaller crash related to the rdpmc attribute
file and jump labels. It turns out to be lack of serialization in the
attribute write path and non-robustness on the jump label side.
The following series addresses these issues.
Thanks,
tglx
---
arch/x86/events/core.c | 3 ++
kernel/jump_label.c | 67 ++++++++++++++++++++++++++++---------------------
2 files changed, 42 insertions(+), 28 deletions(-)
next prev parent reply other threads:[~2024-06-10 12:46 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-09 6:33 [Linux kernel bug] WARNING in static_key_slow_inc_cpuslocked Sam Sun
2024-06-09 13:04 ` Steven Rostedt
2024-06-09 14:06 ` Thomas Gleixner
2024-06-09 14:25 ` Steven Rostedt
2024-06-09 16:02 ` Thomas Gleixner
2024-06-09 16:56 ` Thomas Gleixner
2024-06-09 19:39 ` Thomas Gleixner
2024-06-10 6:46 ` Peter Zijlstra
2024-06-10 10:34 ` Thomas Gleixner
2024-06-10 12:46 ` Thomas Gleixner [this message]
2024-06-10 12:46 ` [patch 1/4] perf/x86: Serialize set_attr_rdpmc() Thomas Gleixner
2024-06-17 15:47 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2024-06-10 12:46 ` [patch 2/4] jump_label: Fix concurrency issues in static_key_slow_dec() Thomas Gleixner
2024-06-10 17:57 ` Peter Zijlstra
2024-06-10 18:00 ` Thomas Gleixner
2024-06-17 15:47 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2024-06-10 12:46 ` [patch 3/4] jump_label: Clarify condition in static_key_fast_inc_not_disabled() Thomas Gleixner
2024-06-17 15:47 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2024-06-10 12:46 ` [patch 4/4] jump_label: Simplify and clarify static_key_fast_inc_cpus_locked() Thomas Gleixner
2024-06-12 13:57 ` Uros Bizjak
2024-06-17 15:47 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
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