From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out162-62-58-216.mail.qq.com (out162-62-58-216.mail.qq.com [162.62.58.216]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3244353A1 for ; Thu, 21 Mar 2024 01:30:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=162.62.58.216 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710984659; cv=none; b=sLgw+xlOw/johK0JOUCXyQYtDbHYohaig9t9U4E0D2lnWLZ1p7dZchYy6ZgIxWKZlbmwybKpQ19ZPzA5SzGlbz6ocXHDeg0ecnRWMC5DGmsjzDgqT1EsX8hWS00aYc9A+wOM3cxaSlkkjw14kDf2IAAPnd2K8ewfuMX6obQecEo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710984659; c=relaxed/simple; bh=pV7ahaGIemw1j5hZGQAz0tCVo6kmDYrAEp6ydQuo+Sw=; h=Message-ID:From:To:Cc:Subject:Date:In-Reply-To:References: MIME-Version; b=kZAG+qNFFXmNcxDdx7kJ/QiW2R501vLFEUNfSyHyInSXd01vkOfbkeTp/FAV/O08TUeBi151jVKZnGith4h1KacLdMG7TjzFlnGuVKdrfzXXv1E9O1cWYnKuRGhUcdTmfjKq0psxZpVNjF8VceY7FXnQ/gGDDrDrNXhypq8xfeI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com; spf=pass smtp.mailfrom=qq.com; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b=SHgrL2VM; arc=none smtp.client-ip=162.62.58.216 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qq.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b="SHgrL2VM" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1710984652; bh=b8uiz9+V2+Fvh4SmZjLlpcxudpBHnV2ToDJ3AyZtqbk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=SHgrL2VMswmaPKWEEYMdYZ8bIeu8rBV0OSdG6FFI6Y4PGy4QK16OwtEEcIDyPyM9r pXkxUYvkgN10Um7q7QjdptoZBIWhNUOWXyKWb++HAPzRdSoXtQumudLbqGvwCy3BoS OthqpXqDA1uGWHd+8g+sCESzn2u9yaCfThMBngzY= Received: from pek-lxu-l1.wrs.com ([111.198.228.140]) by newxmesmtplogicsvrsza1-0.qq.com (NewEsmtp) with SMTP id 7B2328B7; Thu, 21 Mar 2024 09:30:50 +0800 X-QQ-mid: xmsmtpt1710984650tjn4u6dp8 Message-ID: X-QQ-XMAILINFO: N7h1OCCDntuj9WoC9EoF/opJBvcLydBwb/JqSz3mnFPSU+VzmNE5xe4oq4g9XE mICwpG576FGyhrQxBowYHpQtoZ82ELs4fum83sB3wh1kXMfRdy9e/SUgYrtNgT80zVlmjcJggY4O hUldqaFHBodAj7F3iQAysz43fEnwbwUzjDR5FnekJdYHN/MiOV2e3gK66mIjSR3F9IAsg9Qrk6xo 5/KwhWp/SGHjaoxKd81kMFTfHapQo1YDhEW63bcfmhV2kxG3QwTRQWIOsv2TMGq9yeu0BtYOeujM BcfU+xK3QkRzDjl3C++VcVrjvxWWk3asfE41sZzoeQQV8yMINajUoX72vYiUvDtaXjdTSErXeGKS bGxmFaMDE4n/mBHmUYGdhFp0zGrmv8/0gsHNk02zzCuCv/CWr/Iq86qz0huy2Jwz/UmJuNqUa+Bj B/L8D7nUppt+d2DO33V27zEIllB4LqtcxdL3EIBZ5jy+PKHtSWyGr+E9DgCSA4ZjKJeOr/In4+vB 2SXynuOOE/3SE4DFg2OlZBScizYa3Zc59sscMrLNpNr+YW9+NMMnJ0mlWAlD9m1iJQieCS0LEuMN ydStVj5dPzJNXvPezYWh8UNVJDxPoB2ojSaqgwVGkTwGRO2ufNCZr3/nyxjfB9XmhS/teWVo4evj Lmt+4GDU8eQC5CT4qDUcSuQn4D8tWJf862Ki1SdifgMb/FY3m9NpivvQ86K2g3kkYgEmWoYOu4HX Zd0yTKPPm/FxZfHhbkGQYc8xvSEIDEDAW53+36j+OYay12sjiCaxYX3ijqT8185LeeSjwgbi15fq oeO7toR3Qrqe/Jt+DWrXY8cOlSs1vG5DecDEzKuzNbmSFkZs1g3vAKH9iBss/Ok+UJE9dfUO+win LTWyvjmm8Lps/HWSDyVPi+IxYWtfKVOc43HN64lm+Ru+pI5+90/p/RY/Zm+nyGcMO1tthfvbUj2o 6TRqqHlqqIqwoLCxFUxDPGTb22x9TzFM+8h38MlaYTIZzlWMAOKoR1aStEtuNx X-QQ-XMRINFO: M/715EihBoGSf6IYSX1iLFg= From: Edward Adam Davis To: syzbot+18840ef96e57b83b7fea@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 09:30:51 +0800 X-OQ-MSGID: <20240321013050.1777046-2-eadavis@qq.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <00000000000096e5980613f4cb96@google.com> References: <00000000000096e5980613f4cb96@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; }