INFO: task udevd:3638 blocked for more than 143 seconds.
Not tainted 5.18.0-rc7-syzkaller-00121-g3d7285a335ed #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25000 pid: 3638 ppid: 2966 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
io_schedule+0xba/0x130 kernel/sched/core.c:8563
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:976 [inline]
folio_wait_locked include/linux/pagemap.h:973 [inline]
do_read_cache_folio+0x506/0x760 mm/filemap.c:3516
do_read_cache_page mm/filemap.c:3588 [inline]
read_cache_page+0x59/0x2a0 mm/filemap.c:3597
read_mapping_page include/linux/pagemap.h:759 [inline]
read_part_sector+0xf6/0x920 block/partitions/core.c:723
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:608 [inline]
bdev_disk_changed block/partitions/core.c:694 [inline]
bdev_disk_changed+0x629/0xf60 block/partitions/core.c:661
blkdev_get_whole+0x206/0x2d0 block/bdev.c:679
blkdev_get_by_dev.part.0+0x5d2/0xc80 block/bdev.c:816
blkdev_get_by_dev+0x6b/0x80 block/bdev.c:850
blkdev_open+0x13c/0x2c0 block/fops.c:498
do_dentry_open+0x4a1/0x11e0 fs/open.c:824
do_open fs/namei.c:3476 [inline]
path_openat+0x1c71/0x2910 fs/namei.c:3609
do_filp_open+0x1aa/0x400 fs/namei.c:3636
do_sys_openat2+0x16d/0x4c0 fs/open.c:1213
do_sys_open fs/open.c:1229 [inline]
__do_sys_openat fs/open.c:1245 [inline]
__se_sys_openat fs/open.c:1240 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1240
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+0x44/0xae
RIP: 0033:0x7f6f0d925697
RSP: 002b:00007fff7bd25b90 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055b0d6f416e0 RCX: 00007f6f0d925697
RDX: 00000000000a0800 RSI: 000055b0d6f48a00 RDI: 00000000ffffff9c
RBP: 000055b0d6f48a00 R08: 0000000000000001 R09: 00007fff7bdae080
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055b0d6f495e0 R14: 0000000000000001 R15: 000055b0d6f1f910
INFO: task syz-executor.3:8939 blocked for more than 143 seconds.
Not tainted 5.18.0-rc7-syzkaller-00121-g3d7285a335ed #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28032 pid: 8939 ppid: 3633 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6519
__mutex_lock_common kernel/locking/mutex.c:673 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
blkdev_put+0x99/0x950 block/bdev.c:905
blkdev_close+0x64/0x80 block/fops.c:512
__fput+0x277/0x9d0 fs/file_table.c:317
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
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+0x19/0x60 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fe4e2c3bd2b
RSP: 002b:00007fff38d205c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fe4e2c3bd2b
RDX: 00007fe4e2da03c8 RSI: ffffffffffffffff RDI: 0000000000000003
RBP: 00007fe4e2d9d960 R08: 0000000000000000 R09: 00007fe4e2da03d0
R10: 00007fff38d206c0 R11: 0000000000000293 R12: 00000000000718c2
R13: 00007fff38d206c0 R14: 00007fe4e2d9bf60 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bd820e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6467
2 locks held by kworker/u4:4/64:
#0: ffff8880b9c3a018 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:554
#1: ffff8880b9c27888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x176/0x4e0 kernel/sched/psi.c:880
2 locks held by getty/3280:
#0: ffff88801d4aa098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002ce62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcea/0x1230 drivers/tty/n_tty.c:2075
1 lock held by udevd/3638:
#0: ffff88801b99b118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xc80 block/bdev.c:807
1 lock held by syz-executor.3/8939:
#0: ffff88801b99b118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x99/0x950 block/bdev.c:905
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.18.0-rc7-syzkaller-00121-g3d7285a335ed #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:212 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:369
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 64 Comm: kworker/u4:4 Not tainted 5.18.0-rc7-syzkaller-00121-g3d7285a335ed #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy5 ieee80211_iface_work
RIP: 0010:check_kcov_mode+0x2c/0x40 kernel/kcov.c:177
Code: 05 19 33 89 7e 89 c2 81 e2 00 01 00 00 a9 00 01 ff 00 74 10 31 c0 85 d2 74 15 8b 96 a4 15 00 00 85 d2 74 0b 8b 86 80 15 00 00 <39> f8 0f 94 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 31 c0
RSP: 0018:ffffc90001c3f5f8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff9061afd8 RCX: ffff88823bd80c00
RDX: 0000000000000000 RSI: ffff88801873d880 RDI: 0000000000000003
RBP: ffff88823bd80000 R08: ffff88823bd80b33 R09: 0000000000000001
R10: ffffffff81c51806 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88823bd80c00 R14: ffff88823bd80b33 R15: ffff88823bd80c00
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055cf3a5e7018 CR3: 000000000ba8e000 CR4: 0000000000350ef0
Call Trace:
write_comp_data kernel/kcov.c:221 [inline]
__sanitizer_cov_trace_cmp8+0x1d/0x70 kernel/kcov.c:267
for_each_canary mm/kfence/core.c:334 [inline]
kfence_guarded_alloc mm/kfence/core.c:426 [inline]
__kfence_alloc+0xea6/0x1540 mm/kfence/core.c:1001
kfence_alloc include/linux/kfence.h:128 [inline]
slab_alloc_node mm/slub.c:3135 [inline]
slab_alloc mm/slub.c:3225 [inline]
kmem_cache_alloc_trace+0x3c9/0x3f0 mm/slub.c:3256
kmalloc include/linux/slab.h:581 [inline]
kzalloc include/linux/slab.h:714 [inline]
ieee802_11_parse_elems_crc+0xd5/0x1050 net/mac80211/util.c:1502
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2251 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline]
ieee80211_ibss_rx_queued_mgmt+0xda5/0x33b0 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0xa6f/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:298
----------------
Code disassembly (best guess):
0: 05 19 33 89 7e add $0x7e893319,%eax
5: 89 c2 mov %eax,%edx
7: 81 e2 00 01 00 00 and $0x100,%edx
d: a9 00 01 ff 00 test $0xff0100,%eax
12: 74 10 je 0x24
14: 31 c0 xor %eax,%eax
16: 85 d2 test %edx,%edx
18: 74 15 je 0x2f
1a: 8b 96 a4 15 00 00 mov 0x15a4(%rsi),%edx
20: 85 d2 test %edx,%edx
22: 74 0b je 0x2f
24: 8b 86 80 15 00 00 mov 0x1580(%rsi),%eax
* 2a: 39 f8 cmp %edi,%eax <-- trapping instruction
2c: 0f 94 c0 sete %al
2f: c3 retq
30: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1)
37: 00 00 00 00
3b: 0f 1f 00 nopl (%rax)
3e: 31 c0 xor %eax,%eax