loop0: detected capacity change from 0 to 2048 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) loop0: detected capacity change from 2048 to 2 syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=128, nr_sectors = 1 limit=2 Buffer I/O error on dev loop0, logical block 128, lost sync page write ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5354 at fs/buffer.c:1183 mark_buffer_dirty+0x2a9/0x410 fs/buffer.c:1183 Modules linked in: CPU: 0 UID: 0 PID: 5354 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:mark_buffer_dirty+0x2a9/0x410 fs/buffer.c:1183 Code: 4c 89 f7 e8 b9 2c dd ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 d4 f1 fb ff e8 1f 2d 78 ff eb 8c e8 18 2d 78 ff 90 <0f> 0b 90 e9 95 fd ff ff e8 0a 2d 78 ff 90 0f 0b 90 e9 bf fd ff ff RSP: 0018:ffffc9000d4afbb0 EFLAGS: 00010283 RAX: ffffffff8247b2e8 RBX: ffff888043b41658 RCX: 0000000000100000 RDX: ffffc9000de9a000 RSI: 000000000000035a RDI: 000000000000035b RBP: ffffc9000d4afc01 R08: ffff888043b4165f R09: 1ffff110087682cb R10: dffffc0000000000 R11: ffffed10087682cc R12: ffff88804cd42009 R13: ffff88803e8d2640 R14: dffffc0000000000 R15: ffff888043b41658 FS: 00007f428a87e6c0(0000) GS:ffff88808d001000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3595f75000 CR3: 000000003f689000 CR4: 0000000000352ef0 Call Trace: udf_open_lvid+0x363/0x5b0 fs/udf/super.c:2077 udf_reconfigure+0x336/0x540 fs/udf/super.c:678 reconfigure_super+0x224/0x890 fs/super.c:1077 vfs_cmd_reconfigure fs/fsopen.c:268 [inline] vfs_fsconfig_locked+0x171/0x320 fs/fsopen.c:297 __do_sys_fsconfig fs/fsopen.c:473 [inline] __se_sys_fsconfig+0x78e/0x8d0 fs/fsopen.c:350 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f428998eec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f428a87e038 EFLAGS: 00000246 ORIG_RAX: 00000000000001af RAX: ffffffffffffffda RBX: 00007f4289be5fa0 RCX: 00007f428998eec9 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000000 RBP: 00007f4289a11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4289be6038 R14: 00007f4289be5fa0 R15: 00007ffc0a5bd468