INFO: task udevd:3654 blocked for more than 143 seconds.
Not tainted 5.17.0-rc1-syzkaller-00436-g24f4db1f3a27 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:24080 pid: 3654 ppid: 2971 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6295
schedule+0x12b/0x1f0 kernel/sched/core.c:6368
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6427
__mutex_lock_common+0xe9f/0x2490 kernel/locking/mutex.c:673
__mutex_lock kernel/locking/mutex.c:733 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:785
blkdev_get_by_dev+0x15f/0xc40 block/bdev.c:804
blkdev_open+0x137/0x2f0 block/fops.c:501
do_dentry_open+0x78b/0x1020 fs/open.c:824
do_open fs/namei.c:3476 [inline]
path_openat+0x273b/0x36a0 fs/namei.c:3609
do_filp_open+0x277/0x4f0 fs/namei.c:3636
do_sys_openat2+0x13b/0x500 fs/open.c:1214
do_sys_open fs/open.c:1230 [inline]
__do_sys_openat fs/open.c:1246 [inline]
__se_sys_openat fs/open.c:1241 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1241
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f47b5869697
RSP: 002b:00007ffe1dbd7b20 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f47b67bd1f0 RCX: 00007f47b5869697
RDX: 00000000000a0800 RSI: 00007f47b67a9650 RDI: 00000000ffffff9c
RBP: 00007f47b67a9650 R08: 0000000000000001 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 00007f47b67b52c0 R14: 0000000000000001 R15: 00007f47b6795910
INFO: task syz-executor.5:7991 blocked for more than 143 seconds.
Not tainted 5.17.0-rc1-syzkaller-00436-g24f4db1f3a27 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:26864 pid: 7991 ppid: 3628 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6295
schedule+0x12b/0x1f0 kernel/sched/core.c:6368
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6427
__mutex_lock_common+0xe9f/0x2490 kernel/locking/mutex.c:673
__mutex_lock kernel/locking/mutex.c:733 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:785
blkdev_put+0xf8/0x7a0 block/bdev.c:902
blkdev_close+0x58/0x80 block/fops.c:515
__fput+0x3fc/0x870 fs/file_table.c:311
task_work_run+0x146/0x1c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:188 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x209/0x220 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300
do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7325438c9b
RSP: 002b:00007fffb1aa9d10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f7325438c9b
RDX: 0000001b2e220000 RSI: 0000001b2e2220d4 RDI: 0000000000000003
RBP: 00007f732559a960 R08: 0000000000000000 R09: 0000000078e9e0d5
R10: 00007fffb1b1a0b8 R11: 0000000000000293 R12: 0000000000047ea6
R13: 00007fffb1aa9e10 R14: 00007f7325599100 R15: 0000000000000032
INFO: task syz-executor.5:7996 blocked for more than 143 seconds.
Not tainted 5.17.0-rc1-syzkaller-00436-g24f4db1f3a27 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24752 pid: 7996 ppid: 3628 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6295
schedule+0x12b/0x1f0 kernel/sched/core.c:6368
io_schedule+0x83/0x100 kernel/sched/core.c:8407
folio_wait_bit_common+0x87a/0xe30 mm/filemap.c:1322
folio_wait_bit mm/filemap.c:1471 [inline]
folio_wait_locked include/linux/pagemap.h:847 [inline]
do_read_cache_folio+0x5d9/0x820 mm/filemap.c:3495
do_read_cache_page+0x30/0x150 mm/filemap.c:3567
read_mapping_page include/linux/pagemap.h:641 [inline]
read_part_sector+0xd4/0x2d0 block/partitions/core.c:724
adfspart_check_ICS+0xc9/0x720 block/partitions/acorn.c:360
check_partition block/partitions/core.c:148 [inline]
blk_add_partitions block/partitions/core.c:609 [inline]
bdev_disk_changed+0x64c/0x1400 block/partitions/core.c:695
blkdev_get_whole+0x32f/0x3d0 block/bdev.c:679
blkdev_get_by_dev+0x36e/0xc40 block/bdev.c:813
blkdev_open+0x137/0x2f0 block/fops.c:501
do_dentry_open+0x78b/0x1020 fs/open.c:824
do_open fs/namei.c:3476 [inline]
path_openat+0x273b/0x36a0 fs/namei.c:3609
do_filp_open+0x277/0x4f0 fs/namei.c:3636
do_sys_openat2+0x13b/0x500 fs/open.c:1214
do_sys_open fs/open.c:1230 [inline]
__do_sys_openat fs/open.c:1246 [inline]
__se_sys_openat fs/open.c:1241 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1241
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7325438f74
RSP: 002b:00007f7323dd9ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f7325438f74
RDX: 0000000000000000 RSI: 00007f7323dd9d40 RDI: 00000000ffffff9c
RBP: 00007f7323dd9d40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007fffb1aa9caf R14: 00007f7323dda300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#0: ffffffff8cb1db60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3280:
#0: ffff888023c9b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6c5/0x1c60 drivers/tty/n_tty.c:2077
1 lock held by udevd/3654:
#0: ffff88801b063118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x15f/0xc40 block/bdev.c:804
1 lock held by syz-executor.5/7991:
#0: ffff88801b063118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf8/0x7a0 block/bdev.c:902
1 lock held by syz-executor.5/7996:
#0: ffff88801b063118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x15f/0xc40 block/bdev.c:804
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 5.17.0-rc1-syzkaller-00436-g24f4db1f3a27 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc82/0xcd0 kernel/hung_task.c:369
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4154 Comm: kworker/u4:6 Not tainted 5.17.0-rc1-syzkaller-00436-g24f4db1f3a27 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy5 ieee80211_iface_work
RIP: 0010:ieee80211_iface_process_skb net/mac80211/iface.c:1418 [inline]
RIP: 0010:ieee80211_iface_work+0x289/0xca0 net/mac80211/iface.c:1581
Code: 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 6e a7 2d f8 48 8b 1b 48 89 d8 48 c1 e8 03 4d 89 fc 48 89 44 24 28 42 0f b6 04 38 <84> c0 0f 85 76 05 00 00 44 0f b7 33 49 89 df 44 89 f3 81 e3 fc 00
RSP: 0018:ffffc90009e6fbf8 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff888075497050 RCX: ffffffff81676851
RDX: ffff888021268000 RSI: 0000000000000000 RDI: 0000000000000d89
RBP: ffff88807ca44cc0 R08: ffffffff89a39085 R09: fffffbfff1ffe5e4
R10: fffffbfff1ffe5e4 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888078b0c500 R14: ffff88807ca45850 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2c41877f18 CR3: 000000000c88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
process_one_work+0x850/0x1130 kernel/workqueue.c:2307
worker_thread+0xab1/0x1300 kernel/workqueue.c:2454
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess):
0: 48 c1 e8 03 shr $0x3,%rax
4: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1)
9: 74 08 je 0x13
b: 48 89 df mov %rbx,%rdi
e: e8 6e a7 2d f8 callq 0xf82da781
13: 48 8b 1b mov (%rbx),%rbx
16: 48 89 d8 mov %rbx,%rax
19: 48 c1 e8 03 shr $0x3,%rax
1d: 4d 89 fc mov %r15,%r12
20: 48 89 44 24 28 mov %rax,0x28(%rsp)
25: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax
* 2a: 84 c0 test %al,%al <-- trapping instruction
2c: 0f 85 76 05 00 00 jne 0x5a8
32: 44 0f b7 33 movzwl (%rbx),%r14d
36: 49 89 df mov %rbx,%r15
39: 44 89 f3 mov %r14d,%ebx
3c: 81 .byte 0x81
3d: e3 fc jrcxz 0x3b