From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2818E1EEE6 for ; Sat, 23 Nov 2024 13:14:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732367664; cv=none; b=VxBhgXIsApQpF1pvTLia/bKyOjMwGaG6w6bGxiH5rElAukNn1OqkYN0WFXRyTH/fhs18LkT2zSM45e+3CZt4U9BMvtmn1VmUoN9NsX/Vo+gGwyHo+CW/1dd7LGs/etBKgRHOSEos9LgKbYNd22qGnNVS0S+IUPKXxiPErW6JRIM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732367664; c=relaxed/simple; bh=W5VLZhCmHZLlr9K3vcCe2Q44BqQ4UeuOvfDDNyP5frk=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=saKySDNI8efPpRNKRChqg2mj0RPrXQ1CGDww/dD/BVTEYQ+ydLC2cnekp8/UipjSchCGni/B6wNZJUam8q85GQQa+WmO4X8FIeiSeY1IXtR8a7m/CMAPEv/wRiJkziLO0/CTR+0Ftz6+U5SnaYW8bgL/VQ2Cy0t4lKSVUhdfre8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f198.google.com with SMTP id e9e14a558f8ab-3a77d56e862so24676135ab.3 for ; Sat, 23 Nov 2024 05:14:22 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1732367662; x=1732972462; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=HDZ99ejxD/GrhQAqRtjpC0KOChx8C2/P4scOf1Xv+qE=; b=YiT8OAbkv3WqF0fpb31OU/7pP44OUcEjoJ5CRkrLr6i4WIP6BjSZd7jMw0637Y7fY+ BGeRPWENTO8//dK892mKJG/3pzcu1J71pL2AzJv0cFzfn1A1IcrG6eVCF/foi3YeHR0x 8+wFH7E4ULU/Gw6MKtyzfI0iORjF2FbNRNOevINM93TFIGxePZmx/gv6hEi76piXi74z 6nBUwjWLXBT8A600B0I+sEuruOw+jEPE0gKjF3dvVNgUDKu2om2mw1ii8xJq7Ni7f/B4 1npkPevfUPsPnA9+NdZqNbWy+Pce5MdrVGjFb5EDeKTa8upF6FrFDXNLGw1pvyzUdCHR AN9g== X-Forwarded-Encrypted: i=1; AJvYcCV0RSdfbV9EN5zzr+TsX2UCpLzuWZCr2YXiyM9OdbmIV4q7aqZ6cXaocQEvh2XcbWpi/nv0gnbauqAHy1k=@vger.kernel.org X-Gm-Message-State: AOJu0Yw/OISXNNcF6C4IIVpK/+7H9zgd8oc0SibtuTVLYIgAIvAmj/ya jy3y3SeOc63CDTczoIzc77u8Q9vQnEJXC04tfQQ8dGVv9LHuC3Ah252CojC3HG8Mh9PkCfK8E// G1vniN2m3gUkZKM7L/XgjemtE5qtfhyuHRPiv/XzjRh8vF3LgmT3xI6M= X-Google-Smtp-Source: AGHT+IGtIebMFpXYtE3/Wjyx/JZ6wmIoZw2ukrYTaEKklxbWbe6pqUNQ7MXIDTC2XLQhT9hmIn/wFJR1h2cYl9vvCdVXcmTmE7Ky Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:c269:0:b0:3a7:91a4:c752 with SMTP id e9e14a558f8ab-3a79afa90a6mr85761255ab.23.1732367662254; Sat, 23 Nov 2024 05:14:22 -0800 (PST) Date: Sat, 23 Nov 2024 05:14:22 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6741d52e.050a0220.1cc393.0010.GAE@google.com> Subject: [syzbot] [udf?] WARNING in __find_get_block (2) From: syzbot To: hirofumi@mail.parknet.co.jp, jack@suse.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: cfba9f07a1d6 Add linux-next specific files for 20241122 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=178636e8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=45719eec4c74e6ba dashboard link: https://syzkaller.appspot.com/bug?extid=3c9f079f8fb1d7d331be compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/be35516c7ba5/disk-cfba9f07.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/70295210dc7d/vmlinux-cfba9f07.xz kernel image: https://storage.googleapis.com/syzbot-assets/8b5d044072ee/bzImage-cfba9f07.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3c9f079f8fb1d7d331be@syzkaller.appspotmail.com ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 12266 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline] WARNING: CPU: 0 PID: 12266 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline] WARNING: CPU: 0 PID: 12266 at fs/buffer.c:1229 bh_lru_install fs/buffer.c:1346 [inline] WARNING: CPU: 0 PID: 12266 at fs/buffer.c:1229 __find_get_block+0x109d/0x1150 fs/buffer.c:1400 Modules linked in: CPU: 0 UID: 0 PID: 12266 Comm: syz.6.1269 Not tainted 6.12.0-next-20241122-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__brelse fs/buffer.c:1229 [inline] RIP: 0010:brelse include/linux/buffer_head.h:324 [inline] RIP: 0010:bh_lru_install fs/buffer.c:1346 [inline] RIP: 0010:__find_get_block+0x109d/0x1150 fs/buffer.c:1400 Code: 67 3e 9a e8 05 20 db ff e9 1b f7 ff ff e8 4b 2f 70 ff e9 87 f7 ff ff e8 41 2f 70 ff 90 48 c7 c7 20 e1 18 8c e8 c4 cd 30 ff 90 <0f> 0b 90 90 e9 6b f7 ff ff e8 25 2f 70 ff 48 c7 c7 c0 cf a8 8e 4c RSP: 0018:ffffc90005d974a0 EFLAGS: 00010246 RAX: 678501cd73c0d900 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000fba1000 RSI: 0000000000011153 RDI: 0000000000011154 RBP: ffffc90005d975d0 R08: ffffffff81601b32 R09: fffffbfff1cfa218 R10: dffffc0000000000 R11: fffffbfff1cfa218 R12: ffff88807bcf69f8 R13: ffff8880b86398b0 R14: ffff888034c6d828 R15: ffff88805ae4f6b8 FS: 00007fbd27ae76c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30210ff8 CR3: 0000000067510000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bdev_getblk+0x33/0x550 fs/buffer.c:1425 __bread_gfp+0x86/0x400 fs/buffer.c:1485 sb_bread include/linux/buffer_head.h:346 [inline] fat__get_entry fs/fat/dir.c:100 [inline] fat_get_entry+0x78f/0xae0 fs/fat/dir.c:128 fat_get_short_entry fs/fat/dir.c:885 [inline] fat_subdirs+0x227/0x3c0 fs/fat/dir.c:951 fat_read_root+0x5e5/0x8b0 fs/fat/inode.c:1345 fat_fill_super+0x205f/0x35a0 fs/fat/inode.c:1814 get_tree_bdev_flags+0x48c/0x5c0 fs/super.c:1636 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbd26d7ffba Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbd27ae6e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fbd27ae6ef0 RCX: 00007fbd26d7ffba RDX: 00000000200000c0 RSI: 0000000020000000 RDI: 00007fbd27ae6eb0 RBP: 00000000200000c0 R08: 00007fbd27ae6ef0 R09: 0000000002010000 R10: 0000000002010000 R11: 0000000000000246 R12: 0000000020000000 R13: 00007fbd27ae6eb0 R14: 0000000000000336 R15: 0000000020000640 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup