UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) INFO: task syz-executor190:7681 blocked for more than 140 seconds. UDF-fs: Scanning with blocksize 512 failed Not tainted 4.19.49 #21 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 syz-executor190 D29424 7681 7637 0x00000004 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop5' (000000006ce786f9): kobject_uevent_env Call Trace: kobject: 'loop5' (000000006ce786f9): fill_kobj_path: path = '/devices/virtual/block/loop5' context_switch kernel/sched/core.c:2826 [inline] __schedule+0x80d/0x1c70 kernel/sched/core.c:3474 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 4096 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop3' (00000000234efe43): kobject_uevent_env kobject: 'loop3' (00000000234efe43): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_load_vrs: No anchor found schedule+0x92/0x1c0 kernel/sched/core.c:3518 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x774/0xc30 kernel/locking/rwsem-xadd.c:618 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 2048 failed call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found kobject: 'loop5' (000000006ce786f9): kobject_uevent_env kobject: 'loop5' (000000006ce786f9): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x53/0x90 kernel/locking/rwsem.c:72 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 grab_super+0xaf/0x2c0 fs/super.c:383 UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 sget_userns+0x357/0xd30 fs/super.c:511 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 sget+0x10c/0x150 fs/super.c:570 mount_bdev+0xff/0x3c0 fs/super.c:1131 kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found udf_mount+0x35/0x40 fs/udf/super.c:131 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed mount_fs+0xa8/0x32b fs/super.c:1261 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 vfs_kern_mount.part.0+0x6f/0x410 fs/namespace.c:961 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x53e/0x2bc0 fs/namespace.c:2799 UDF-fs: Scanning with blocksize 2048 failed kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found ksys_mount+0xdb/0x150 fs/namespace.c:3015 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3026 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found entry_SYSCALL_64_after_hwframe+0x49/0xbe UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 RIP: 0033:0x44aeb9 kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 4096 failed kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: warning (device loop9): udf_load_vrs: No anchor found Code: 5d ca fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 2b ca fb ff c3 66 2e 0f 1f 84 00 00 00 00 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 1024 failed kobject: 'loop3' (00000000234efe43): kobject_uevent_env UDF-fs: warning (device loop11): udf_load_vrs: No anchor found kobject: 'loop3' (00000000234efe43): fill_kobj_path: path = '/devices/virtual/block/loop3' RSP: 002b:00007f78a199ace8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 4096 failed RAX: ffffffffffffffda RBX: 00000000006dcc58 RCX: 000000000044aeb9 UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: warning (device loop9): udf_load_vrs: No anchor found RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00000000200000c0 UDF-fs: Scanning with blocksize 2048 failed RBP: 00000000006dcc50 R08: 0000000000000000 R09: 0000000000000000 kobject: 'loop4' (0000000080658129): kobject_uevent_env kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c kobject: 'loop5' (000000006ce786f9): kobject_uevent_env UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 R13: 00007ffe185f984f R14: 00007f78a199b9c0 R15: 0000000000000001 kobject: 'loop5' (000000006ce786f9): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 INFO: task syz-executor190:7683 blocked for more than 140 seconds. UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 Not tainted 4.19.49 #21 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed syz-executor190 D29448 7683 7636 0x00000004 kobject: 'loop3' (00000000234efe43): kobject_uevent_env UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop3' (00000000234efe43): fill_kobj_path: path = '/devices/virtual/block/loop3' Call Trace: UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed context_switch kernel/sched/core.c:2826 [inline] __schedule+0x80d/0x1c70 kernel/sched/core.c:3474 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 schedule+0x92/0x1c0 kernel/sched/core.c:3518 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x774/0xc30 kernel/locking/rwsem-xadd.c:618 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 2048 failed kobject: 'loop5' (000000006ce786f9): kobject_uevent_env kobject: 'loop5' (000000006ce786f9): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 2048 failed call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x53/0x90 kernel/locking/rwsem.c:72 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 grab_super+0xaf/0x2c0 fs/super.c:383 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 sget_userns+0x357/0xd30 fs/super.c:511 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: Scanning with blocksize 512 failed kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 sget+0x10c/0x150 fs/super.c:570 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 mount_bdev+0xff/0x3c0 fs/super.c:1131 kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' udf_mount+0x35/0x40 fs/udf/super.c:131 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 mount_fs+0xa8/0x32b fs/super.c:1261 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 vfs_kern_mount.part.0+0x6f/0x410 fs/namespace.c:961 kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: Scanning with blocksize 512 failed kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x53e/0x2bc0 fs/namespace.c:2799 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: Scanning with blocksize 2048 failed ksys_mount+0xdb/0x150 fs/namespace.c:3015 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3026 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 4096 failed do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 entry_SYSCALL_64_after_hwframe+0x49/0xbe UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 RIP: 0033:0x44aeb9 kobject: 'loop3' (00000000234efe43): kobject_uevent_env Code: 5d ca fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 2b ca fb ff c3 66 2e 0f 1f 84 00 00 00 00 kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: warning (device loop11): udf_load_vrs: No anchor found kobject: 'loop3' (00000000234efe43): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: Scanning with blocksize 2048 failed RSP: 002b:00007f78a199ace8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 kobject: 'loop5' (000000006ce786f9): kobject_uevent_env RAX: ffffffffffffffda RBX: 00000000006dcc58 RCX: 000000000044aeb9 kobject: 'loop5' (000000006ce786f9): fill_kobj_path: path = '/devices/virtual/block/loop5' RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00000000200000c0 kobject: 'loop4' (0000000080658129): kobject_uevent_env kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' RBP: 00000000006dcc50 R08: 0000000000000000 R09: 0000000000000000 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found R13: 00007ffe185f984f R14: 00007f78a199b9c0 R15: 0000000000000001 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found INFO: task syz-executor190:7689 blocked for more than 140 seconds. UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: Scanning with blocksize 512 failed kobject: 'loop3' (00000000234efe43): kobject_uevent_env Not tainted 4.19.49 #21 UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) kobject: 'loop3' (00000000234efe43): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 syz-executor190 D29448 7689 7635 0x00000004 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found Call Trace: UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 1024 failed context_switch kernel/sched/core.c:2826 [inline] __schedule+0x80d/0x1c70 kernel/sched/core.c:3474 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 1024 failed kobject: 'loop5' (000000006ce786f9): kobject_uevent_env UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop5' (000000006ce786f9): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: warning (device loop11): udf_load_vrs: No anchor found schedule+0x92/0x1c0 kernel/sched/core.c:3518 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x774/0xc30 kernel/locking/rwsem-xadd.c:618 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x53/0x90 kernel/locking/rwsem.c:72 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 4096 failed grab_super+0xaf/0x2c0 fs/super.c:383 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 sget_userns+0x357/0xd30 fs/super.c:511 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) sget+0x10c/0x150 fs/super.c:570 mount_bdev+0xff/0x3c0 fs/super.c:1131 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed udf_mount+0x35/0x40 fs/udf/super.c:131 kobject: 'loop4' (0000000080658129): kobject_uevent_env mount_fs+0xa8/0x32b fs/super.c:1261 kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 1024 failed vfs_kern_mount.part.0+0x6f/0x410 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x53e/0x2bc0 fs/namespace.c:2799 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 ksys_mount+0xdb/0x150 fs/namespace.c:3015 kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop9): udf_load_vrs: No anchor found __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3026 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 entry_SYSCALL_64_after_hwframe+0x49/0xbe UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 RIP: 0033:0x44aeb9 kobject: 'loop4' (0000000080658129): kobject_uevent_env kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 Code: 5d ca fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 2b ca fb ff c3 66 2e 0f 1f 84 00 00 00 00 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 4096 failed RSP: 002b:00007f78a199ace8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 4096 failed RAX: ffffffffffffffda RBX: 00000000006dcc58 RCX: 000000000044aeb9 UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 1024 failed kobject: 'loop5' (000000006ce786f9): kobject_uevent_env kobject: 'loop5' (000000006ce786f9): fill_kobj_path: path = '/devices/virtual/block/loop5' RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00000000200000c0 kobject: 'loop4' (0000000080658129): kobject_uevent_env kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' print_req_error: 231 callbacks suppressed print_req_error: I/O error, dev loop9, sector 64 print_req_error: I/O error, dev loop11, sector 64 print_req_error: I/O error, dev loop9, sector 1024 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop5' (000000006ce786f9): kobject_uevent_env print_req_error: I/O error, dev loop11, sector 256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 RBP: 00000000006dcc50 R08: 0000000000000000 R09: 0000000000000000 print_req_error: I/O error, dev loop11, sector 512 kobject: 'loop5' (000000006ce786f9): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 print_req_error: I/O error, dev loop9, sector 2048 kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c R13: 00007ffe185f984f R14: 00007f78a199b9c0 R15: 0000000000000001 kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000234efe43): kobject_uevent_env UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop9): udf_load_vrs: No anchor found Showing all locks held in the system: 1 lock held by khungtaskd/1032: kobject: 'loop3' (00000000234efe43): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: Scanning with blocksize 512 failed print_req_error: I/O error, dev loop7, sector 64 UDF-fs: Scanning with blocksize 2048 failed print_req_error: I/O error, dev loop7, sector 256 kobject: 'loop3' (00000000234efe43): kobject_uevent_env UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 print_req_error: I/O error, dev loop9, sector 64 #0: print_req_error: I/O error, dev loop9, sector 2048 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 00000000ed969eb3 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop3' (00000000234efe43): fill_kobj_path: path = '/devices/virtual/block/loop3' ( UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 4096 failed rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:4435 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 1 lock held by rsyslogd/7486: kobject: 'loop5' (000000006ce786f9): kobject_uevent_env kobject: 'loop5' (000000006ce786f9): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) #0: UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 1024 failed 0000000056c17db9 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop3' (00000000234efe43): kobject_uevent_env UDF-fs: warning (device loop7): udf_load_vrs: No anchor found (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:767 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 2 locks held by getty/7609: UDF-fs: Scanning with blocksize 1024 failed kobject: 'loop3' (00000000234efe43): fill_kobj_path: path = '/devices/virtual/block/loop3' #0: 00000000da5784cf (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 512 failed #1: 000000008e9fdbb3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 2 locks held by getty/7610: UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed #0: 00000000c20c31a8 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 #1: 00000000c2a9c4e5 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) 2 locks held by getty/7611: UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 #0: 00000000930a54cb (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) #1: 00000000950e21cd (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 2 locks held by getty/7612: #0: 00000000c77f07d2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363 #1: UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 000000006a5def39 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 ( UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 &ldata->atomic_read_lock UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 ){+.+.} UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 , at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: warning (device loop11): udf_load_vrs: No anchor found 2 locks held by getty/7613: UDF-fs: Scanning with blocksize 1024 failed kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' #0: 000000002f9b5503 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 #1: 0000000098ee2fc2 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 2 locks held by getty/7614: kobject: 'loop4' (0000000080658129): kobject_uevent_env UDF-fs: Scanning with blocksize 512 failed kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 #0: UDF-fs: warning (device loop7): udf_load_vrs: No anchor found 0000000005fbe092 UDF-fs: Scanning with blocksize 2048 failed (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 #1: 0000000010e5226a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 2 locks held by getty/7615: UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop7): udf_load_vrs: No anchor found #0: UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) kobject: 'loop5' (000000006ce786f9): kobject_uevent_env UDF-fs: warning (device loop9): udf_load_vrs: No anchor found kobject: 'loop5' (000000006ce786f9): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: Scanning with blocksize 4096 failed 00000000f77a16ce (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 #1: UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 00000000b199ea9e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 kobject: 'loop4' (0000000080658129): kobject_uevent_env 2 locks held by syz-executor190/7638: kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' #0: 000000009927f6a5 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x1660 fs/block_dev.c:1471 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 #1: 000000000aaa008b (loop_ctl_mutex){+.+.}, at: lo_open+0x1d/0xd0 drivers/block/loop.c:1737 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 1 lock held by syz-executor190/7648: 2 locks held by syz-executor190/7681: UDF-fs: warning (device loop9): udf_load_vrs: No anchor found #0: 00000000eb48d254 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 fs/super.c:1125 kobject: 'loop3' (00000000234efe43): kobject_uevent_env UDF-fs: warning (device loop11): udf_load_vrs: No anchor found kobject: 'loop3' (00000000234efe43): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: Scanning with blocksize 2048 failed kobject: 'loop4' (0000000080658129): kobject_uevent_env #1: 00000000661fecf7 (&type->s_umount_key#52){+.+.}, at: grab_super+0xaf/0x2c0 fs/super.c:383 UDF-fs: Scanning with blocksize 512 failed kobject: 'loop4' (0000000080658129): fill_kobj_path: path = '/devices/virtual/block/loop4' 1 lock held by syz-executor190/7650: 2 locks held by syz-executor190/7683: UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 #0: 00000000a81b7342 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 fs/super.c:1125 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 #1: 0000000038898e93 (&type->s_umount_key#52){+.+.}, at: grab_super+0xaf/0x2c0 fs/super.c:383 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop9): udf_load_vrs: No anchor found 2 locks held by syz-executor190/7652: kobject: 'loop5' (000000006ce786f9): kobject_uevent_env UDF-fs: Scanning with blocksize 4096 failed kobject: 'loop5' (000000006ce786f9): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) 2 locks held by syz-executor190/7689: UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 #0: 00000000b553d7ec (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 fs/super.c:1125 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 #1: 00000000fe9c6f8f (&type->s_umount_key#52){+.+.}, at: grab_super+0xaf/0x2c0 fs/super.c:383 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop9): udf_load_vrs: No anchor found 1 lock held by syz-executor190/11164: UDF-fs: Scanning with blocksize 1024 failed 1 lock held by syz-executor190/11163: UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 2 locks held by syz-executor190/11174: UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed #0: kobject: 'loop3' (00000000234efe43): kobject_uevent_env 00000000b9736c50 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 fs/super.c:1125 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop3' (00000000234efe43): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found #1: UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_load_vrs: No anchor found 00000000b4e92b68 (&type->s_umount_key#52){+.+.}, at: grab_super+0xaf/0x2c0 fs/super.c:383 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 2048 failed 4 locks held by syz-executor190/11170: UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 2 locks held by syz-executor190/11176: UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 #0: 0000000096cf4147 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 fs/super.c:1125 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_load_vrs: No anchor found #1: UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed 00000000afa4f5ad UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 ( UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) &type->s_umount_key#52){+.+.}, at: grab_super+0xaf/0x2c0 fs/super.c:383 ============================================= UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 NMI backtrace for cpu 0 CPU: 0 PID: 1032 Comm: khungtaskd Not tainted 4.19.49 #21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 UDF-fs: Scanning with blocksize 4096 failed Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 lib/nmi_backtrace.c:62 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x9df/0xee0 kernel/hung_task.c:287 kthread+0x354/0x420 kernel/kthread.c:246 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: UDF-fs: Scanning with blocksize 512 failed NMI backtrace for cpu 1 CPU: 1 PID: 11176 Comm: syz-executor190 Not tainted 4.19.49 #21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rcu_is_watching+0xb/0x30 kernel/rcu/tree.c:1025 Code: 48 00 eb e2 48 89 45 e8 e8 52 08 48 00 48 8b 45 e8 eb 94 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 65 ff 05 a5 8b a8 7e 40 ff ff ff 83 f0 01 65 ff 0d 96 8b a8 7e 74 02 5d c3 e8 8e 04 RSP: 0018:ffff8880ae907df0 EFLAGS: 00000086 RAX: 0000000000000001 RBX: ffffffff88b0a700 RCX: 0000000000000002 RDX: 0000000000000000 RSI: ffffffff815c3a88 RDI: ffff88809c20eb3c RBP: ffff8880ae907df0 R08: ffff88809c20e2c0 R09: ffffed1015d24b71 R10: ffffed1015d24b70 R11: ffff8880ae925b83 R12: ffff8880ae925c00 R13: 00000106677a15f8 R14: ffff888098e5fdc0 R15: dffffc0000000000 FS: 00007f78a19bc700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 000000008b01d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_read_lock_sched_held+0x8e/0x130 kernel/rcu/update.c:113 trace_hrtimer_expire_entry include/trace/events/timer.h:228 [inline] __run_hrtimer kernel/time/hrtimer.c:1397 [inline] __hrtimer_run_queues+0xb6d/0xdd0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1029 [inline] smp_apic_timer_interrupt+0x111/0x550 arch/x86/kernel/apic/apic.c:1054 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:869 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1689 [inline] RIP: 0010:vprintk_emit+0x5b8/0x690 kernel/printk/printk.c:1926 Code: 48 b8 00 00 00 00 00 fc ff df 41 80 7c 05 00 00 0f 85 a2 00 00 00 48 83 3d 4c b8 1c 07 00 74 29 e8 8d 88 15 00 48 89 df 57 9d <0f> 1f 44 00 00 e9 79 fe ff ff e8 79 88 15 00 0f 0b e8 72 88 15 00 RSP: 0018:ffff88808feef980 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff88809c20e2c0 RBX: 0000000000000293 RCX: 1ffff11013841d6c RDX: 0000000000000000 RSI: ffffffff81557e03 RDI: 0000000000000293 RBP: ffff88808feef9c8 R08: ffff88809c20e2c0 R09: ffff88809c20eb60 R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000002a R13: 1ffffffff10e46c9 R14: 0000000000000200 R15: ffff8880a8260440 vprintk_default+0x28/0x30 kernel/printk/printk.c:1968 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:2001 udf_fill_super.cold+0xeb/0x190 fs/udf/super.c:2115 mount_bdev+0x304/0x3c0 fs/super.c:1158 udf_mount+0x35/0x40 fs/udf/super.c:131 mount_fs+0xa8/0x32b fs/super.c:1261 vfs_kern_mount.part.0+0x6f/0x410 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x53e/0x2bc0 fs/namespace.c:2799 ksys_mount+0xdb/0x150 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3026 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x44aeb9 Code: 5d ca fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 2b ca fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f78a19bbce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000006dcc48 RCX: 000000000044aeb9 RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00000000200000c0 RBP: 00000000006dcc40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc4c R13: 00007ffe185f984f R14: 00007f78a19bc9c0 R15: 0000000000000001 UDF-fs: warning (device loop9): udf_fill_super: No partition found (1)