INFO: task udevd:3754 blocked for more than 143 seconds.
Not tainted 5.19.0-rc5-syzkaller-00105-g9f09069cde34 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:22368 pid: 3754 ppid: 2977 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6458
schedule+0xeb/0x1b0 kernel/sched/core.c:6530
io_schedule+0x83/0x100 kernel/sched/core.c:8645
folio_wait_bit_common+0x97a/0x1490 mm/filemap.c:1324
folio_wait_bit mm/filemap.c:1473 [inline]
folio_wait_locked include/linux/pagemap.h:1028 [inline]
do_read_cache_folio+0x634/0xd10 mm/filemap.c:3530
do_read_cache_page mm/filemap.c:3602 [inline]
read_cache_page+0x57/0x250 mm/filemap.c:3611
read_mapping_page include/linux/pagemap.h:759 [inline]
read_part_sector+0xd5/0x450 block/partitions/core.c:715
adfspart_check_ICS+0xd4/0x750 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+0x75d/0x13e0 block/partitions/core.c:686
blkdev_get_whole+0x329/0x3b0 block/bdev.c:686
blkdev_get_by_dev+0x30b/0xa40 block/bdev.c:823
blkdev_open+0x128/0x2e0 block/fops.c:481
do_dentry_open+0x789/0x1040 fs/open.c:848
do_open fs/namei.c:3520 [inline]
path_openat+0x26c0/0x2ec0 fs/namei.c:3653
do_filp_open+0x277/0x4f0 fs/namei.c:3680
do_sys_openat2+0x13b/0x500 fs/open.c:1278
do_sys_open fs/open.c:1294 [inline]
__do_sys_openat fs/open.c:1310 [inline]
__se_sys_openat fs/open.c:1305 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1305
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f4561f25697
RSP: 002b:00007ffd2c106fb0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000564831a714f0 RCX: 00007f4561f25697
RDX: 00000000000a0800 RSI: 0000564831a55fa0 RDI: 00000000ffffff9c
RBP: 0000564831a55fa0 R08: 0000000000000001 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 0000564831a44b70 R14: 0000000000000001 R15: 0000564831a3b910
INFO: task syz-executor.4:12036 blocked for more than 143 seconds.
Not tainted 5.19.0-rc5-syzkaller-00105-g9f09069cde34 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:26264 pid:12036 ppid: 3646 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6458
schedule+0xeb/0x1b0 kernel/sched/core.c:6530
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6589
__mutex_lock_common+0xecf/0x26c0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
blkdev_put+0x100/0x730 block/bdev.c:912
blkdev_close+0x55/0x80 block/fops.c:495
__fput+0x3b9/0x820 fs/file_table.c:317
task_work_run+0x146/0x1c0 kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0x134/0x160 kernel/entry/common.c:169
exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fea5103bd4b
RSP: 002b:00007ffc10f68d30 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007fea5103bd4b
RDX: 0000001b2f420000 RSI: 0000001b2f421430 RDI: 0000000000000004
RBP: 00007fea5119d960 R08: 0000000000000000 R09: 0000000067034077
R10: 00007ffc10fe60b8 R11: 0000000000000293 R12: 000000000007f1f4
R13: 00007ffc10f68e30 R14: 00007ffc10f68e50 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8cb1e820 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3286:
#0: ffff888026cc5098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2124
1 lock held by udevd/3754:
#0: ffff888146f3d118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfd/0xa40 block/bdev.c:814
1 lock held by syz-executor.4/12036:
#0: ffff888146f3d118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x100/0x730 block/bdev.c:912
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.19.0-rc5-syzkaller-00105-g9f09069cde34 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x473/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x168/0x280 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+0xcf9/0xd40 kernel/hung_task.c:369
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 5.19.0-rc5-syzkaller-00105-g9f09069cde34 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Workqueue: phy4 ieee80211_iface_work
RIP: 0010:stack_trace_consume_entry+0xa/0x270 kernel/stacktrace.c:83
Code: e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff 4c 89 e7 e8 db e3 64 00 e9 4f ff ff ff e8 d1 c3 b5 08 90 55 41 57 41 56 41 55 41 54 53 <48> 83 ec 18 48 89 fb 48 ba 00 00 00 00 00 fc ff df 4c 8d 4f 10 4d
RSP: 0018:ffffc900001074c8 EFLAGS: 00000286
RAX: ffffffff81da639f RBX: ffffc90000107500 RCX: ffffffff8f4c6000
RDX: ffffffff8f612d01 RSI: ffffffff81da639f RDI: ffffc900001075e0
RBP: ffffc90000107590 R08: ffffc900001078b8 R09: dffffc0000000000
R10: fffff52000020eac R11: 1ffff92000020eaa R12: ffff888011ed3b00
R13: ffffffff817584b0 R14: ffffc900001075e0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c01a865400 CR3: 000000000c88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x106/0x140 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0x12d/0x1f0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4c/0x70 mm/kasan/common.c:45
kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:370
____kasan_slab_free+0xd8/0x110 mm/kasan/common.c:366
kasan_slab_free include/linux/kasan.h:200 [inline]
slab_free_hook mm/slub.c:1754 [inline]
slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1780
slab_free mm/slub.c:3536 [inline]
kfree+0xc6/0x210 mm/slub.c:4584
ieee80211_ibss_rx_queued_mgmt+0x1834/0x28c0
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0x757/0xcd0 net/mac80211/iface.c:1581
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess):
0: e1 07 loope 0x9
2: 80 c1 03 add $0x3,%cl
5: 38 c1 cmp %al,%cl
7: 0f 8c 5c ff ff ff jl 0xffffff69
d: 4c 89 e7 mov %r12,%rdi
10: e8 db e3 64 00 callq 0x64e3f0
15: e9 4f ff ff ff jmpq 0xffffff69
1a: e8 d1 c3 b5 08 callq 0x8b5c3f0
1f: 90 nop
20: 55 push %rbp
21: 41 57 push %r15
23: 41 56 push %r14
25: 41 55 push %r13
27: 41 54 push %r12
29: 53 push %rbx
* 2a: 48 83 ec 18 sub $0x18,%rsp <-- trapping instruction
2e: 48 89 fb mov %rdi,%rbx
31: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
38: fc ff df
3b: 4c 8d 4f 10 lea 0x10(%rdi),%r9
3f: 4d rex.WRB