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b=qTRHndQKm82a/ZaaCG0UthdGWH8Z/HUwBJSwmjPf7k+VdiYjm4KIfK5uFVW8Uib2s ftIoFFfF52La7lG20moHxj+eWAk2JGhD0rgC+ZdpEG8b+QFSkIDa1ZoXMf988rERF2 cdNs0JyjTgIui5PdYsbvqFZHMXJeUIYZSZT0ALKE= Received: from pek-lxu-l1.wrs.com ([111.198.228.140]) by newxmesmtplogicsvrsza10-0.qq.com (NewEsmtp) with SMTP id 9463AE5A; Thu, 21 Mar 2024 09:37:06 +0800 X-QQ-mid: xmsmtpt1710985026tu3zp38wp Message-ID: X-QQ-XMAILINFO: MmPNY57tR1Xn1VYbDdYGMPWooLp0POrdkSKMhxFt2lYCiONWmoLQY1bLQc3j+B ILwJhW6TR2XYCA+yXUXSRg0UMcOcZmPW3kXf1RaDMVKI3mdOQqzDAGcmhJttMl0uzD+ZhfSntR7H 2KkmXmHJU4KnAAbKUDTXmXIWeggiwHbjf7MUhsfVtQxzgpVs3j3p4O5p3aa9hCs9Az3XoRLPKBWY h+HUyLL13GZBNpQONNKwprg/WeF2Exw4ZxDCplhMV1EL145Em+n3K+SLts6Qq8QbAsIavYzTFiad kIZYOxGZWlPGJuZ4De3/kqUzW1yZ0mw8DMkYNYBuEJxczNWRaASrPfe/DeGUv0kW0ie7JOtlEJdv /Mibm9hO3OhtM3Dd2wu9+Yt6VBBozGub0r0BOmrakglvSUg6mWKafRcW3CAyeqnwMxHjN8GypMz8 kS1JKDW1uVPTs3p+3v/K/uG/O3RPKcPIIjjc5ye+5W3rQbQhYqcua+i9mTAMcSYyRP8/1CWM5EXy l17I0K+/J9OYEi7HufvLPTEFIun2CAPNubNz1Eioa5ZPLT/hCtc+IWMSpJsJ68Ti392pPfdXmsHD EHOwrenzowLvR1c3i5NpJv33Q08tbCyt0YO5OLUL7fm8fxyelb0cXbcIZS2zTIFNVh/OavSf3JtB zH0wwKSxtDmv8WgloKUlrgkyRAxvPPGRYBjz185FwcXT+CvcUjBGTMlOJ6lGzP+OXvZMoT6fWoFf x39iUt3ttMzW4lI8LVGGUEX3K7ZafSr6gpEzoEKrSbsKl8z5RpjvYPsLHljnVAA2vrVVxm/uvhLh kikUmjCGXlUiTyrlN/ukvGn9om7QbhTxl6PKDo8XzzkeR5lvb7oM3UlhDYyRzIWMKjTOeTz5qd3H An3rXSps7ciDmw4XiXPyFWhZYe47NKRrteQ8453uxRoARFG8MwBMyOhCdSNlSql4GHQrV4nslY94 5pXwmR3BI0BNGJAAGh4f8otjaImNPCafGUT0iWWssz+npAG3iruU2lHuaphrCho1vBkCWXuuqgZb f9lqhbDGHINY8TDEHT X-QQ-XMRINFO: Nq+8W0+stu50PRdwbJxPCL0= From: Edward Adam Davis To: syzbot+d832e7bb0f8bf47217f1@syzkaller.appspotmail.com Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [sound?] possible deadlock in _snd_pcm_stream_lock_irqsave (4) Date: Thu, 21 Mar 2024 09:37:06 +0800 X-OQ-MSGID: <20240321013706.1783078-2-eadavis@qq.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <000000000000048fbc0613f4eff0@google.com> References: <000000000000048fbc0613f4eff0@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit please test dl in _snd_pcm_stream_lock_irqsave #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git fe46a7dd189e diff --git a/sound/core/timer.c b/sound/core/timer.c index 15b07d09c4b7..c501faa30040 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -409,7 +409,7 @@ static void snd_timer_close_locked(struct snd_timer_instance *timeri, struct snd_timer *timer = timeri->timer; if (timer) { - guard(spinlock)(&timer->lock); + guard(spinlock_irqsave)(&timer->lock); timeri->flags |= SNDRV_TIMER_IFLG_DEAD; }