From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail115-24.sinamail.sina.com.cn (mail115-24.sinamail.sina.com.cn [218.30.115.24]) (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 3ACEE194A59 for ; Sat, 16 Nov 2024 23:10:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=218.30.115.24 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731798613; cv=none; b=PmXNBNlitwXW5WTw0Tqk5lVoPc/0khPhxlkJScfLZ8hx0lz2l+bFASU9WsvLVkAivA+BjlEwbTk0KCBkcylLTmbyBd0WUibBUBBdD9+QKVjafH7WJuhe4JETidwDC5BvnbQOPtgXQmyWMTvgZC1wzIuCVO2AxZntuRi+C/TDCC0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731798613; c=relaxed/simple; bh=KiVMa+y4CK/8GDNZ5XW162nOAOv2Nu03MehMR2+AeN4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=OQMOvy+qqOwbDw1m2TmiTDWY26F+pq4C21tfFYdQvetcZYPgzjQkg/ONFjpmjEx5JiWVX6E/D5WxRXWSamVZGZBUGlrNycOU9HUbRHSAwwhh/wZb5ywKiQT9+iPRUupudYFdYdUooTN8VFib6vLwI++8ko6bk0AzTzaH1oBxm60= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sina.com; spf=pass smtp.mailfrom=sina.com; arc=none smtp.client-ip=218.30.115.24 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sina.com X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([113.118.70.242]) by sina.com (10.185.250.22) with ESMTP id 6739261E00006640; Sat, 17 Nov 2024 07:09:23 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com Authentication-Results: sina.com; spf=none smtp.mailfrom=hdanton@sina.com; dkim=none header.i=none; dmarc=none action=none header.from=hdanton@sina.com X-SMAIL-MID: 7423917602666 X-SMAIL-UIID: 22A2E5ABF2C14004986820D5F80F3989-20241117-070923-1 From: Hillf Danton To: syzbot Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [fs?] WARNING in rcu_sync_dtor (2) Date: Sun, 17 Nov 2024 07:09:13 +0800 Message-Id: <20241116230913.1124-1-hdanton@sina.com> In-Reply-To: <673866ee.050a0220.85a0.0013.GAE@google.com> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Sat, 16 Nov 2024 01:33:34 -0800 > syzbot found the following issue on: > > HEAD commit: 2d5404caa8c7 Linux 6.12-rc7 > git tree: upstream > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12188ce8580000 #syz test --- x/fs/exfat/super.c +++ y/fs/exfat/super.c @@ -46,9 +46,6 @@ static int exfat_sync_fs(struct super_bl struct exfat_sb_info *sbi = EXFAT_SB(sb); int err = 0; - if (unlikely(exfat_forced_shutdown(sb))) - return 0; - if (!wait) return 0; --