INFO: task udevd:8631 blocked for more than 143 seconds.
Not tainted 5.18.0-syzkaller-10643-g9d004b2f4fea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:26160 pid: 8631 ppid: 2970 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6431
schedule+0xd2/0x1f0 kernel/sched/core.c:6503
io_schedule+0xba/0x130 kernel/sched/core.c:8618
folio_wait_bit_common+0x4f2/0xa90 mm/filemap.c:1324
folio_wait_bit mm/filemap.c:1473 [inline]
folio_wait_locked include/linux/pagemap.h:1028 [inline]
folio_wait_locked include/linux/pagemap.h:1025 [inline]
do_read_cache_folio+0x4ff/0x760 mm/filemap.c:3520
do_read_cache_page mm/filemap.c:3592 [inline]
read_cache_page+0x59/0x2a0 mm/filemap.c:3601
read_mapping_page include/linux/pagemap.h:759 [inline]
read_part_sector+0xf6/0x920 block/partitions/core.c:715
adfspart_check_ICS+0x9a/0x690 block/partitions/acorn.c:360
check_partition block/partitions/core.c:147 [inline]
blk_add_partitions block/partitions/core.c:600 [inline]
bdev_disk_changed block/partitions/core.c:686 [inline]
bdev_disk_changed+0x629/0xf60 block/partitions/core.c:653
blkdev_get_whole+0x18a/0x2d0 block/bdev.c:686
blkdev_get_by_dev.part.0+0x5ec/0xb90 block/bdev.c:823
blkdev_get_by_dev+0x6b/0x80 block/bdev.c:857
blkdev_open+0x13c/0x2c0 block/fops.c:481
do_dentry_open+0x4a1/0x11f0 fs/open.c:824
do_open fs/namei.c:3477 [inline]
path_openat+0x1c71/0x2910 fs/namei.c:3610
do_filp_open+0x1aa/0x400 fs/namei.c:3637
do_sys_openat2+0x16d/0x4c0 fs/open.c:1254
do_sys_open fs/open.c:1270 [inline]
__do_sys_openat fs/open.c:1286 [inline]
__se_sys_openat fs/open.c:1281 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1281
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f36ca125697
RSP: 002b:00007ffe685945e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055b694076190 RCX: 00007f36ca125697
RDX: 00000000000a0800 RSI: 000055b694076a70 RDI: 00000000ffffff9c
RBP: 000055b694076a70 R08: 0000000000000001 R09: 00007ffe685f2080
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055b694059b70 R14: 0000000000000001 R15: 000055b694050910
INFO: task syz-executor.4:12517 blocked for more than 143 seconds.
Not tainted 5.18.0-syzkaller-10643-g9d004b2f4fea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28408 pid:12517 ppid: 3636 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6431
schedule+0xd2/0x1f0 kernel/sched/core.c:6503
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6562
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
blkdev_put+0xbc/0x770 block/bdev.c:912
blkdev_close+0x64/0x80 block/fops.c:495
__fput+0x277/0x9d0 fs/file_table.c:317
task_work_run+0xdd/0x1a0 kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f144aa89109
RSP: 002b:00007f14499fe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f144ab9bf60 RCX: 00007f144aa89109
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
RBP: 00007f144aae308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcbbe79fef R14: 00007f14499fe300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8bd86860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
2 locks held by getty/3284:
#0: ffff88807ef98098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002cd62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcea/0x1230 drivers/tty/n_tty.c:2075
1 lock held by udevd/8631:
#0: ffff88801bb5f118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90 block/bdev.c:814
1 lock held by syz-executor.4/12517:
#0: ffff88801bb5f118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xbc/0x770 block/bdev.c:912
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.18.0-syzkaller-10643-g9d004b2f4fea #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+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc22/0xf90 kernel/hung_task.c:378
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
NMI backtrace for cpu 1
CPU: 1 PID: 5199 Comm: kworker/u4:17 Not tainted 5.18.0-syzkaller-10643-g9d004b2f4fea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy7 ieee80211_iface_work
RIP: 0010:write_comp_data+0x3c/0x90 kernel/kcov.c:229
Code: 01 00 00 49 89 f8 65 48 8b 14 25 80 6f 02 00 a9 00 01 ff 00 74 0e 85 f6 74 59 8b 82 a4 15 00 00 85 c0 74 4f 8b 82 80 15 00 00 <83> f8 03 75 44 48 8b 82 88 15 00 00 8b 92 84 15 00 00 48 8b 38 48
RSP: 0018:ffffc9000c4576d8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000007 RCX: ffffffff88cd4d53
RDX: ffff888020dd3b00 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffffff8af42860 R08: 0000000000000001 R09: 000000000000002d
R10: 0000000000000006 R11: 000000000008a07a R12: 0000000000000006
R13: 0000000000000001 R14: 0000000000000020 R15: ffff888024ef2c89
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd0648b7770 CR3: 0000000023bfd000 CR4: 0000000000350ee0
Call Trace:
__sanitizer_cov_trace_switch+0x50/0x90 kernel/kcov.c:333
_ieee802_11_parse_elems_crc+0x1e3/0x2670 net/mac80211/util.c:1049
ieee802_11_parse_elems_crc+0x812/0x1050 net/mac80211/util.c:1521
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2257 [inline]
ieee80211_bss_info_update+0x42c/0xb00 net/mac80211/scan.c:212
ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ab8/0x33f0 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0xa78/0xd10 net/mac80211/iface.c:1581
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
----------------
Code disassembly (best guess):
0: 01 00 add %eax,(%rax)
2: 00 49 89 add %cl,-0x77(%rcx)
5: f8 clc
6: 65 48 8b 14 25 80 6f mov %gs:0x26f80,%rdx
d: 02 00
f: a9 00 01 ff 00 test $0xff0100,%eax
14: 74 0e je 0x24
16: 85 f6 test %esi,%esi
18: 74 59 je 0x73
1a: 8b 82 a4 15 00 00 mov 0x15a4(%rdx),%eax
20: 85 c0 test %eax,%eax
22: 74 4f je 0x73
24: 8b 82 80 15 00 00 mov 0x1580(%rdx),%eax
* 2a: 83 f8 03 cmp $0x3,%eax <-- trapping instruction
2d: 75 44 jne 0x73
2f: 48 8b 82 88 15 00 00 mov 0x1588(%rdx),%rax
36: 8b 92 84 15 00 00 mov 0x1584(%rdx),%edx
3c: 48 8b 38 mov (%rax),%rdi
3f: 48 rex.W