UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512
UDF-fs: Scanning with blocksize 2048 failed
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
UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256
INFO: task syz-executor859:6208 blocked for more than 140 seconds.
Not tainted 4.20.0-rc6+ #153
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
UDF-fs: warning (device loop1): 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=512, location=512
UDF-fs: warning (device loop9): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
syz-executor859 D23584 6208 6159 0x00000004
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: error (device loop1): udf_read_tagged: read failed, block=256, location=256
UDF-fs: Scanning with blocksize 4096 failed
Call Trace:
UDF-fs: Scanning with blocksize 1024 failed
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x8cf/0x21d0 kernel/sched/core.c:3472
UDF-fs: warning (device loop11): udf_load_vrs: No anchor found
UDF-fs: warning (device loop9): udf_fill_super: No partition found (1)
UDF-fs: error (device loop1): 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: Scanning with blocksize 1024 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=256, location=256
UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512
UDF-fs: warning (device loop1): udf_load_vrs: No anchor found
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: Scanning with blocksize 4096 failed
UDF-fs: warning (device loop7): udf_load_vrs: No anchor found
UDF-fs: warning (device loop1): udf_fill_super: No partition found (1)
UDF-fs: warning (device loop11): udf_load_vrs: No anchor found
UDF-fs: warning (device loop9): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
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 loop11): udf_read_tagged: read failed, block=256, location=256
UDF-fs: Scanning with blocksize 512 failed
schedule+0xfe/0x460 kernel/sched/core.c:3516
UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop1): 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
UDF-fs: error (device loop1): 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 loop7): udf_load_vrs: No anchor found
UDF-fs: warning (device loop11): udf_load_vrs: No anchor found
UDF-fs: warning (device loop1): udf_load_vrs: No anchor found
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)
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: Scanning with blocksize 4096 failed
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256
UDF-fs: warning (device loop7): udf_fill_super: No partition found (1)
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 loop9): udf_read_tagged: read failed, block=512, location=512
UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256
__rwsem_down_write_failed_common+0xc9a/0x15e0 kernel/locking/rwsem-xadd.c:577
UDF-fs: warning (device loop11): udf_load_vrs: No anchor found
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: error (device loop1): udf_read_tagged: read failed, block=512, location=512
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: warning (device loop1): 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=512, location=512
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
UDF-fs: Scanning with blocksize 512 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 loop1): udf_read_tagged: read failed, block=256, location=256
UDF-fs: Scanning with blocksize 4096 failed
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: error (device loop1): udf_read_tagged: read failed, block=512, location=512
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: 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=512, location=512
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: warning (device loop1): udf_load_vrs: No anchor found
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=512, location=512
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop11): udf_load_vrs: No anchor found
UDF-fs: error (device loop1): 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: Scanning with blocksize 2048 failed
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: warning (device loop7): udf_load_vrs: No anchor found
UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512
rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:606
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
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write+0xa5/0x130 kernel/locking/rwsem.c:72
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256
UDF-fs: warning (device loop1): 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: error (device loop9): udf_read_tagged: read failed, block=512, location=512
grab_super+0xcc/0x400 fs/super.c:383
UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512
UDF-fs: Scanning with blocksize 4096 failed
UDF-fs: warning (device loop1): udf_fill_super: No partition found (1)
UDF-fs: warning (device loop11): udf_fill_super: No partition found (1)
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 loop1): udf_read_tagged: read failed, block=256, location=256
UDF-fs: Scanning with blocksize 4096 failed
UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512
UDF-fs: Scanning with blocksize 1024 failed
sget_userns+0x433/0xed0 fs/super.c:511
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
UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256
UDF-fs: warning (device loop1): 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=256, location=256
UDF-fs: Scanning with blocksize 512 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 loop1): 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 2048 failed
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: error (device loop1): udf_read_tagged: read failed, block=512, location=512
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 loop9): udf_load_vrs: No anchor found
UDF-fs: warning (device loop1): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 4096 failed
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256
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 1024 failed
UDF-fs: error (device loop1): 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=512, location=512
UDF-fs: error (device loop1): 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: Scanning with blocksize 512 failed
UDF-fs: warning (device loop1): udf_load_vrs: No anchor found
UDF-fs: warning (device loop11): udf_load_vrs: No anchor found
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 2048 failed
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop1): 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=256, location=256
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop1): 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 loop7): udf_load_vrs: No anchor found
UDF-fs: warning (device loop1): udf_load_vrs: No anchor found
UDF-fs: warning (device loop9): udf_load_vrs: No anchor found
sget+0x10b/0x150 fs/super.c:570
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: Scanning with blocksize 4096 failed
UDF-fs: warning (device loop1): udf_fill_super: No partition found (1)
mount_bdev+0x111/0x3e0 fs/super.c:1131
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: error (device loop7): udf_read_tagged: read failed, block=512, location=512
udf_mount+0x34/0x40 fs/udf/super.c:131
UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256
UDF-fs: Scanning with blocksize 2048 failed
mount_fs+0xae/0x31d fs/super.c:1261
UDF-fs: warning (device loop7): udf_load_vrs: No anchor found
vfs_kern_mount.part.35+0xdc/0x4f0 fs/namespace.c:961
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
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 2048 failed
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
vfs_kern_mount fs/namespace.c:951 [inline]
do_new_mount fs/namespace.c:2469 [inline]
do_mount+0x581/0x31f0 fs/namespace.c:2801
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
UDF-fs: Scanning with blocksize 4096 failed
UDF-fs: warning (device loop11): udf_fill_super: No partition found (1)
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
UDF-fs: Scanning with blocksize 4096 failed
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_fill_super: No partition found (1)
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 loop9): udf_fill_super: No partition found (1)
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
UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512
ksys_mount+0x12d/0x140 fs/namespace.c:3017
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256
__do_sys_mount fs/namespace.c:3031 [inline]
__se_sys_mount fs/namespace.c:3028 [inline]
__x64_sys_mount+0xbe/0x150 fs/namespace.c:3028
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
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
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 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=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
UDF-fs: warning (device loop7): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x44ab59
Code: 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 6e 6e 69 6e 67 20 77 69 74 68 20 64 65 66 61 75 6c 74 20 73 65 74 <74> 69 6e 67 00 00 00 49 6e 76 61 6c 69 64 20 22 24 41 63 74 69 6f
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 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
UDF-fs: warning (device loop7): udf_load_vrs: No anchor found
RSP: 002b:00007f355988ece8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
UDF-fs: warning (device loop11): udf_fill_super: No partition found (1)
UDF-fs: Scanning with blocksize 2048 failed
RAX: ffffffffffffffda RBX: 00000000006dcc48 RCX: 000000000044ab59
UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256
RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000020000040
UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512
RBP: 00000000006dcc40 R08: 0000000000000000 R09: 0000000000000000
UDF-fs: warning (device loop7): udf_load_vrs: No anchor found
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc4c
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256
UDF-fs: Scanning with blocksize 4096 failed
R13: 00007ffc8d8b1c7f R14: 00007f355988f9c0 R15: 00000000006dcd2c
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
Showing all locks held in the system:
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 loop11): udf_load_vrs: No anchor found
1 lock held by khungtaskd/1022:
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 loop1): udf_read_tagged: read failed, block=256, location=256
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256
#0: 00000000d93dfbe4 (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x424 kernel/locking/lockdep.c:4379
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
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512
UDF-fs: error (device loop1): 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: warning (device loop9): udf_load_vrs: No anchor found
2 locks held by getty/6125:
UDF-fs: warning (device loop1): 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
#0: 00000000ce72be23 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: warning (device loop7): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: Scanning with blocksize 1024 failed
#1: 00000000ea8696d6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154
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 loop1): udf_read_tagged: read failed, block=512, location=512
2 locks held by getty/6126:
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
#0: 00000000f744e6d3 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353
UDF-fs: warning (device loop1): udf_load_vrs: No anchor found
UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512
#1: 000000001dfd8e5c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154
UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512
UDF-fs: Scanning with blocksize 1024 failed
UDF-fs: warning (device loop7): udf_load_vrs: No anchor found
2 locks held by getty/6127:
#0: 000000000211f0c4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop11): udf_load_vrs: No anchor found
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 2048 failed
UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256
UDF-fs: Scanning with blocksize 1024 failed
#1: 0000000021a2076b (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154
UDF-fs: error (device loop1): 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
2 locks held by getty/6128:
UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256
#0: 000000004eab7784 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353
UDF-fs: warning (device loop1): 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 loop7): udf_load_vrs: No anchor found
UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512
#1: 00000000ed48b8d0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154
UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256
2 locks held by getty/6129:
UDF-fs: Scanning with blocksize 4096 failed
#0: 000000000de66bb9 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353
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_fill_super: No partition found (1)
UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512
#1: 00000000ed5ebde9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154
UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: warning (device loop1): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 4096 failed
2 locks held by getty/6130:
UDF-fs: warning (device loop11): udf_fill_super: No partition found (1)
#0: 00000000fb75a716 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353
UDF-fs: Scanning with blocksize 4096 failed
UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256
#1: 0000000073924ec3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154
UDF-fs: warning (device loop1): udf_fill_super: No partition found (1)
2 locks held by getty/6131:
UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512
#0: 0000000087ead649 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353
#1: 00000000f1d0cc1e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154
1 lock held by syz-executor859/6168:
UDF-fs: warning (device loop9): udf_load_vrs: No anchor found
2 locks held by syz-executor859/6208:
#0: 00000000009cbb02 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0xa5/0x3e0 fs/super.c:1125
UDF-fs: Scanning with blocksize 4096 failed
#1: 00000000a9f47a55 (&type->s_umount_key#52){+.+.}, at: grab_super+0xcc/0x400 fs/super.c:383
UDF-fs: warning (device loop9): udf_fill_super: No partition found (1)
2 locks held by syz-executor859/6309:
2 locks held by syz-executor859/6330:
#0: 0000000018d70232 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0xa5/0x3e0 fs/super.c:1125
#1: 00000000be870739 (&type->s_umount_key#52){+.+.}, at: grab_super+0xcc/0x400 fs/super.c:383
2 locks held by syz-executor859/10287:
#0: 000000005f7ec4af (&bdev->bd_mutex){+.+.}, at: __blkdev_put+0xc2/0x830 fs/block_dev.c:1783
#1: 000000003b6dfd6a (loop_index_mutex){+.+.}, at: lo_release+0x1f/0x1f0 drivers/block/loop.c:1673
1 lock held by syz-executor859/10291:
#0: 00000000f5da3854 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x34/0x540 fs/block_dev.c:1816
2 locks held by syz-executor859/10292:
#0: 00000000d80c42c3 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x13c0 fs/block_dev.c:1466
#1: 000000003b6dfd6a (loop_index_mutex){+.+.}, at: lo_open+0x1b/0xb0 drivers/block/loop.c:1630
2 locks held by syz-executor859/10304:
#0: 00000000f5da3854 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x13c0 fs/block_dev.c:1466
#1: 000000003b6dfd6a (loop_index_mutex){+.+.}, at: lo_open+0x1b/0xb0 drivers/block/loop.c:1630
2 locks held by syz-executor859/10299:
#0: 00000000c08d799f (&bdev->bd_mutex){+.+.}, at: __blkdev_put+0xc2/0x830 fs/block_dev.c:1783
#1: 000000003b6dfd6a (loop_index_mutex){+.+.}, at: lo_release+0x1f/0x1f0 drivers/block/loop.c:1673
2 locks held by syz-executor859/10302:
#0: 00000000a08b3dd1 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x13c0 fs/block_dev.c:1466
#1: 000000003b6dfd6a (loop_index_mutex){+.+.}, at: lo_open+0x1b/0xb0 drivers/block/loop.c:1630
1 lock held by syz-executor859/10305:
#0: 00000000a08b3dd1 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x13c0 fs/block_dev.c:1466
1 lock held by syz-executor859/10306:
#0: 00000000c08d799f (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x13c0 fs/block_dev.c:1466
1 lock held by syz-executor859/10296:
#0: 00000000961d3457 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x34/0x540 fs/block_dev.c:1816
1 lock held by syz-executor859/10300:
#0: 0000000090fa1109 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x13c0 fs/block_dev.c:1466
2 locks held by syz-executor859/10303:
#0: 00000000961d3457 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x13c0 fs/block_dev.c:1466
#1: 000000003b6dfd6a (loop_index_mutex){+.+.}, at: lo_open+0x1b/0xb0 drivers/block/loop.c:1630
3 locks held by blkid/10297:
#0: 0000000090fa1109 (&bdev->bd_mutex){+.+.}, at: __blkdev_put+0xc2/0x830 fs/block_dev.c:1783
#1: 000000003b6dfd6a (loop_index_mutex){+.+.}, at: lo_release+0x1f/0x1f0 drivers/block/loop.c:1673
#2: 000000003f51b3f1 (&lo->lo_ctl_mutex#2){+.+.}, at: __lo_release drivers/block/loop.c:1650 [inline]
#2: 000000003f51b3f1 (&lo->lo_ctl_mutex#2){+.+.}, at: lo_release+0xa3/0x1f0 drivers/block/loop.c:1674
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1022 Comm: khungtaskd Not tainted 4.20.0-rc6+ #153
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+0x244/0x39d lib/dump_stack.c:113
nmi_cpu_backtrace.cold.2+0x5c/0xa1 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1e8/0x22a 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:205 [inline]
watchdog+0xb51/0x1060 kernel/hung_task.c:289
kthread+0x35a/0x440 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 0 to CPUs 1:
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.367 msecs
NMI backtrace for cpu 1
CPU: 1 PID: 6309 Comm: syz-executor859 Not tainted 4.20.0-rc6+ #153
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:23 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x18/0x50 kernel/kcov.c:101
Code: e8 4a 89 54 10 f0 4a 89 4c d8 20 4c 89 08 5d c3 66 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 48 69 82 7e <81> e2 00 01 1f 00 75 2b 8b 90 d8 12 00 00 83 fa 02 75 20 48 8b 88
RSP: 0018:ffff8881c0d36878 EFLAGS: 00000293
RAX: ffff8881c075a200 RBX: ffff8881c0d36a78 RCX: ffffffff87d799bb
RDX: 0000000080000000 RSI: ffffffff87d799d1 RDI: 0000000000000007
RBP: ffff8881c0d36878 R08: ffff8881c075a200 R09: ffffed103b5e5b5f
R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000008
R13: ffff8881a3381a00 R14: 0000000000000000 R15: ffff8881c0d36948
FS: 00007f35598d1700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f355986ddb8 CR3: 00000001c3ea2000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
xas_descend+0x201/0x510 lib/xarray.c:206
xas_load+0x145/0x1e0 lib/xarray.c:234
find_get_entry+0x3ca/0x1120 mm/filemap.c:1415
pagecache_get_page+0x12f/0xf00 mm/filemap.c:1518
find_get_page_flags include/linux/pagemap.h:278 [inline]
__find_get_block_slow fs/buffer.c:205 [inline]
__find_get_block+0x63a/0xf20 fs/buffer.c:1294
__getblk_slow fs/buffer.c:1039 [inline]
__getblk_gfp+0x2b3/0xd50 fs/buffer.c:1320
__bread_gfp+0x2d/0x310 fs/buffer.c:1354
sb_bread include/linux/buffer_head.h:307 [inline]
udf_tread+0xf2/0x140 fs/udf/misc.c:44
udf_read_tagged+0x50/0x530 fs/udf/misc.c:210
udf_check_anchor_block+0x1d3/0x650 fs/udf/super.c:1775
udf_scan_anchors+0x5c2/0x860 fs/udf/super.c:1854
udf_find_anchor fs/udf/super.c:1872 [inline]
udf_load_vrs+0x699/0xdb0 fs/udf/super.c:1937
udf_fill_super+0xc55/0x235c fs/udf/super.c:2132
mount_bdev+0x30c/0x3e0 fs/super.c:1158
udf_mount+0x34/0x40 fs/udf/super.c:131
mount_fs+0xae/0x31d fs/super.c:1261
vfs_kern_mount.part.35+0xdc/0x4f0 fs/namespace.c:961
vfs_kern_mount fs/namespace.c:951 [inline]
do_new_mount fs/namespace.c:2469 [inline]
do_mount+0x581/0x31f0 fs/namespace.c:2801
ksys_mount+0x12d/0x140 fs/namespace.c:3017
__do_sys_mount fs/namespace.c:3031 [inline]
__se_sys_mount fs/namespace.c:3028 [inline]
__x64_sys_mount+0xbe/0x150 fs/namespace.c:3028
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x44ab59
Code: 7d 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 4b cb fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f35598d0ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000006dcc28 RCX: 000000000044ab59
RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000020000040
RBP: 00000000006dcc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc2c
R13: 00007ffc8d8b1c7f R14: 00007f35598d19c0 R15: 00000000006dcd2c
kobject: 'loop4' (000000003eb96171): kobject_uevent_env