From: Edward Adam Davis <eadavis@sina.com>
To: syzbot+1f0fbc2561b3e5d51b91@syzkaller.appspotmail.com
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] possible deadlock in lock_system_sleep (2)
Date: Tue, 20 Oct 2026 08:37:48 +0800 [thread overview]
Message-ID: <20261020003748.20847-1-eadavis@sina.com> (raw)
In-Reply-To: <6ad65cac.5a04d468.191e0a.001d.GAE@google.com>
From: Edward Aadm Davis <eadavis@sina.com>
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 32c52ec87d62
diff --git a/kernel/reboot.c b/kernel/reboot.c
index 5b9691f45f5f..bc2716677a6c 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -813,8 +813,8 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
#ifdef CONFIG_HIBERNATION
case LINUX_REBOOT_CMD_SW_SUSPEND:
- ret = hibernate();
- break;
+ mutex_unlock(&system_transition_mutex);
+ return hibernate();
#endif
default:
next prev parent reply other threads:[~2026-10-20 0:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-19 18:08 [syzbot] possible deadlock in lock_system_sleep (2) syzbot
2026-10-20 0:37 ` Edward Adam Davis [this message]
2026-10-20 1:47 ` syzbot
2026-10-20 1:05 ` [PATCH] kernel/reboot: Avoid potential deadlocks during suspension Edward Adam Davis
2026-10-20 15:06 ` Bradley Morgan
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