UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop0): udf_fill_super: No partition found (1) UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256 INFO: task syz-executor968:7668 blocked for more than 140 seconds. Not tainted 4.19.80 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor968 D28216 7668 7644 0x00000004 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x774/0xc30 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x53/0x90 kernel/locking/rwsem.c:72 grab_super+0xaf/0x2c0 fs/super.c:383 sget_userns+0x357/0xd30 fs/super.c:511 sget+0x10c/0x150 fs/super.c:570 mount_bdev+0xff/0x3c0 fs/super.c:1131 udf_mount+0x35/0x40 fs/udf/super.c:131 mount_fs+0xa8/0x31f 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: 0033:0x4455d9 Code: ff d0 59 fd ff c0 59 fd ff b0 59 fd ff a0 59 fd ff 90 59 fd ff 80 59 fd ff 70 59 fd ff 60 59 fd ff 50 59 fd ff 40 59 fd ff 30 <59> fd ff 20 59 fd ff 10 59 fd ff 00 59 fd ff f0 58 fd ff e0 58 fd RSP: 002b:00007fff407b9958 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004455d9 RDX: 0000000020000040 RSI: 0000000020000240 RDI: 00000000200000c0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff407b99f0 R14: 0000000000800000 R15: 0000000000000000 INFO: task syz-executor968:7672 blocked for more than 140 seconds. Not tainted 4.19.80 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor968 D28216 7672 7642 0x00000004 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 mount_bdev+0x93/0x3c0 fs/super.c:1125 udf_mount+0x35/0x40 fs/udf/super.c:131 mount_fs+0xa8/0x31f 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: 0033:0x4455d9 Code: ff d0 59 fd ff c0 59 fd ff b0 59 fd ff a0 59 fd ff 90 59 fd ff 80 59 fd ff 70 59 fd ff 60 59 fd ff 50 59 fd ff 40 59 fd ff 30 <59> fd ff 20 59 fd ff 10 59 fd ff 00 59 fd ff f0 58 fd ff e0 58 fd RSP: 002b:00007fff407b9958 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004455d9 RDX: 0000000020000040 RSI: 0000000020000240 RDI: 00000000200000c0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff407b99f0 R14: 0000000000800000 R15: 0000000000000000 INFO: task syz-executor968:7677 blocked for more than 140 seconds. Not tainted 4.19.80 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor968 D28216 7677 7641 0x00000004 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 mount_bdev+0x93/0x3c0 fs/super.c:1125 udf_mount+0x35/0x40 fs/udf/super.c:131 mount_fs+0xa8/0x31f 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: 0033:0x4455d9 Code: ff d0 59 fd ff c0 59 fd ff b0 59 fd ff a0 59 fd ff 90 59 fd ff 80 59 fd ff 70 59 fd ff 60 59 fd ff 50 59 fd ff 40 59 fd ff 30 <59> fd ff 20 59 fd ff 10 59 fd ff 00 59 fd ff f0 58 fd ff e0 58 fd RSP: 002b:00007fff407b9958 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004455d9 RDX: 0000000020000040 RSI: 0000000020000240 RDI: 00000000200000c0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff407b99f0 R14: 0000000000800000 R15: 0000000000000000 INFO: task syz-executor968:7681 blocked for more than 140 seconds. Not tainted 4.19.80 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor968 D28216 7681 7643 0x00000004 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 mount_bdev+0x93/0x3c0 fs/super.c:1125 udf_mount+0x35/0x40 fs/udf/super.c:131 mount_fs+0xa8/0x31f 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: 0033:0x4455d9 Code: ff d0 59 fd ff c0 59 fd ff b0 59 fd ff a0 59 fd ff 90 59 fd ff 80 59 fd ff 70 59 fd ff 60 59 fd ff 50 59 fd ff 40 59 fd ff 30 <59> fd ff 20 59 fd ff 10 59 fd ff 00 59 fd ff f0 58 fd ff e0 58 fd RSP: 002b:00007fff407b9958 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004455d9 RDX: 0000000020000040 RSI: 0000000020000240 RDI: 00000000200000c0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff407b99f0 R14: 0000000000800000 R15: 0000000000000000 INFO: task syz-executor968:7686 blocked for more than 140 seconds. Not tainted 4.19.80 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor968 D28216 7686 7639 0x00000004 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x866/0x1dc0 kernel/sched/core.c:3515 schedule+0x92/0x1c0 kernel/sched/core.c:3559 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 mount_bdev+0x93/0x3c0 fs/super.c:1125 udf_mount+0x35/0x40 fs/udf/super.c:131 mount_fs+0xa8/0x31f 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: 0033:0x4455d9 Code: ff d0 59 fd ff c0 59 fd ff b0 59 fd ff a0 59 fd ff 90 59 fd ff 80 59 fd ff 70 59 fd ff 60 59 fd ff 50 59 fd ff 40 59 fd ff 30 <59> fd ff 20 59 fd ff 10 59 fd ff 00 59 fd ff f0 58 fd ff e0 58 fd RSP: 002b:00007fff407b9958 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004455d9 RDX: 0000000020000040 RSI: 0000000020000240 RDI: 00000000200000c0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff407b99f0 R14: 0000000000800000 R15: 0000000000000000 Showing all locks held in the system: 1 lock held by khungtaskd/1036: #0: 00000000600d5fa9 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:4438 1 lock held by rsyslogd/7490: #0: 00000000ac452197 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:767 2 locks held by getty/7612: #0: 00000000c4d95f64 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 0000000060dcee06 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 2 locks held by getty/7613: #0: 0000000004576c43 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 0000000037cda624 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 2 locks held by getty/7614: #0: 000000002e24a621 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 00000000cec1bd5c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 2 locks held by getty/7615: #0: 000000000c918580 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 0000000077efb5a4 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 2 locks held by getty/7616: #0: 00000000933711c6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 000000005badeaf3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 2 locks held by getty/7617: #0: 000000007de0f85c (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 00000000b404d9bf (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 2 locks held by getty/7618: #0: 000000008b67db6d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 0000000049cf0971 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154 1 lock held by syz-executor968/7664: 2 locks held by syz-executor968/7668: #0: 000000007351d1e8 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 fs/super.c:1125 #1: 000000006e72dfa6 (&type->s_umount_key#52){+.+.}, at: grab_super+0xaf/0x2c0 fs/super.c:383 1 lock held by syz-executor968/7672: #0: 000000007351d1e8 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 fs/super.c:1125 1 lock held by syz-executor968/7677: #0: 000000007351d1e8 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 fs/super.c:1125 1 lock held by syz-executor968/7681: #0: 000000007351d1e8 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 fs/super.c:1125 1 lock held by syz-executor968/7686: #0: 000000007351d1e8 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 fs/super.c:1125 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1036 Comm: khungtaskd Not tainted 4.19.80 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 lib/nmi_backtrace.c:62 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 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7664 Comm: syz-executor968 Not tainted 4.19.80 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:find_get_entry+0x39/0x820 mm/filemap.c:1446 Code: 48 c1 e8 03 41 55 41 54 48 89 c1 49 89 fc 53 48 81 ec a8 00 00 00 48 89 85 30 ff ff ff 48 b8 00 00 00 00 00 fc ff df 48 01 c8 <48> 89 b5 50 ff ff ff 48 c7 85 78 ff ff ff b3 8a b5 41 48 c7 45 80 RSP: 0000:ffff8880919f7580 EFLAGS: 00000282 RAX: ffffed101233eeb9 RBX: 0000000000000007 RCX: 1ffff1101233eeb9 RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffff8880a6d454d8 RBP: ffff8880919f7650 R08: ffff88808ef2c380 R09: 0000000000000001 R10: ffffed1015d24732 R11: ffff8880ae923993 R12: ffff8880a6d454d8 R13: 0000000000620848 R14: dffffc0000000000 R15: 0000000000000003 FS: 0000000001b15880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efcd63fd140 CR3: 00000000a53ce000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pagecache_get_page+0x4c/0xa40 mm/filemap.c:1563 find_or_create_page include/linux/pagemap.h:322 [inline] grow_dev_page fs/buffer.c:948 [inline] grow_buffers fs/buffer.c:1017 [inline] __getblk_slow fs/buffer.c:1044 [inline] __getblk_gfp+0x284/0x970 fs/buffer.c:1321 __bread_gfp+0x2f/0x300 fs/buffer.c:1355 sb_bread include/linux/buffer_head.h:307 [inline] udf_tread+0xf1/0x140 fs/udf/misc.c:44 udf_read_tagged+0x50/0x530 fs/udf/misc.c:210 udf_check_anchor_block+0x1ef/0x680 fs/udf/super.c:1755 udf_scan_anchors+0x4dd/0x680 fs/udf/super.c:1834 udf_find_anchor fs/udf/super.c:1852 [inline] udf_load_vrs+0x67f/0xc80 fs/udf/super.c:1917 udf_fill_super+0x7cb/0x16f5 fs/udf/super.c:2112 mount_bdev+0x304/0x3c0 fs/super.c:1158 udf_mount+0x35/0x40 fs/udf/super.c:131 mount_fs+0xa8/0x31f 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: 0033:0x4455d9 Code: ed cb 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 bb cb fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fff407b9958 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004455d9 RDX: 0000000020000040 RSI: 0000000020000240 RDI: 00000000200000c0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff407b99f0 R14: 0000000000800000 R15: 0000000000000000