INFO: task udevd:20602 blocked for more than 143 seconds.
Not tainted 5.19.0-rc3-syzkaller-00048-gde5c208d533a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:26536 pid:20602 ppid: 2979 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0xa00/0x4b50 kernel/sched/core.c:6458
schedule+0xd2/0x1f0 kernel/sched/core.c:6530
io_schedule+0xba/0x130 kernel/sched/core.c:8645
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:3521
do_read_cache_page mm/filemap.c:3593 [inline]
read_cache_page+0x59/0x2a0 mm/filemap.c:3602
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:848
do_open fs/namei.c:3520 [inline]
path_openat+0x1c71/0x2910 fs/namei.c:3653
do_filp_open+0x1aa/0x400 fs/namei.c:3680
do_sys_openat2+0x16d/0x4c0 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+0x13f/0x1f0 fs/open.c:1305
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: 0033:0x7fa679d25697
RSP: 002b:00007fff0d34cef0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000563d1b41a9c0 RCX: 00007fa679d25697
RDX: 00000000000a0800 RSI: 0000563d1b4153f0 RDI: 00000000ffffff9c
RBP: 0000563d1b4153f0 R08: 0000000000000001 R09: 00007fff0d3f8080
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 0000563d1b3eda80 R14: 0000000000000001 R15: 0000563d1b3df2c0
INFO: task syz-executor.0:20782 blocked for more than 143 seconds.
Not tainted 5.19.0-rc3-syzkaller-00048-gde5c208d533a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:29168 pid:20782 ppid: 3807 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0xa00/0x4b50 kernel/sched/core.c:6458
schedule+0xd2/0x1f0 kernel/sched/core.c:6530
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6589
__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
get_signal+0x1c5/0x2600 kernel/signal.c:2634
arch_do_signal_or_restart+0x82/0x2300 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop kernel/entry/common.c:166 [inline]
exit_to_user_mode_prepare+0x15f/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: 0033:0x7f2753e89109
RSP: 002b:00007f2752ddd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f2753f9c030 RCX: 00007f2753e89109
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
RBP: 00007f2753ee305d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff3f28bc9f R14: 00007f2752ddd300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8bd840a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
2 locks held by getty/3289:
#0: ffff88814aa0e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90001c482e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2124
1 lock held by udevd/20602:
#0: ffff88801e3db918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90 block/bdev.c:814
1 lock held by syz-executor.0/20782:
#0: ffff88801e3db918 (&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 5.19.0-rc3-syzkaller-00048-gde5c208d533a #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
CPU: 1 PID: 57 Comm: kworker/u4:4 Not tainted 5.19.0-rc3-syzkaller-00048-gde5c208d533a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy13 ieee80211_iface_work
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:166 [inline]
RIP: 0010:unwind_next_frame+0x258/0x1cc0 arch/x86/kernel/unwind_orc.c:443
Code: 74 21 48 89 54 24 30 89 4c 24 28 44 89 5c 24 20 e8 4d 71 90 00 48 8b 54 24 30 8b 4c 24 28 44 8b 5c 24 20 8b 14 95 00 d6 d8 8e <89> c8 48 8d 34 40 48 8d b4 36 a4 f6 32 8e 83 c2 01 48 81 fe 00 d6
RSP: 0018:ffffc90001c3f828 EFLAGS: 00000046
RAX: 0000000000000003 RBX: 0000000000000001 RCX: 000000000002dcbe
RDX: 000000000002dcc8 RSI: 0000000000000000 RDI: ffffffff8edbed28
RBP: ffffc90001c3f8e0 R08: ffffffff8bbff820 R09: ffffc90001c3f8cc
R10: fffff52000387f1e R11: 000000000008a07a R12: ffffc90001c3f8cd
R13: ffffc90001c3f898 R14: ffffffff81c5c92f R15: 000000000000c5c9
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7524355ceb CR3: 000000001c00c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
kasan_set_track+0x21/0x30 mm/kasan/common.c:45
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
____kasan_slab_free mm/kasan/common.c:366 [inline]
____kasan_slab_free+0x13d/0x180 mm/kasan/common.c:328
kasan_slab_free include/linux/kasan.h:200 [inline]
__cache_free mm/slab.c:3425 [inline]
kmem_cache_free.part.0+0xa9/0x240 mm/slab.c:3735
kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:700
kfree_skb_reason+0x85/0x110 include/linux/refcount.h:279
kfree_skb include/linux/skbuff.h:1375 [inline]
ieee80211_iface_work+0x41f/0xd10 net/mac80211/iface.c:1583
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: 74 21 je 0x23
2: 48 89 54 24 30 mov %rdx,0x30(%rsp)
7: 89 4c 24 28 mov %ecx,0x28(%rsp)
b: 44 89 5c 24 20 mov %r11d,0x20(%rsp)
10: e8 4d 71 90 00 callq 0x907162
15: 48 8b 54 24 30 mov 0x30(%rsp),%rdx
1a: 8b 4c 24 28 mov 0x28(%rsp),%ecx
1e: 44 8b 5c 24 20 mov 0x20(%rsp),%r11d
23: 8b 14 95 00 d6 d8 8e mov -0x71272a00(,%rdx,4),%edx
* 2a: 89 c8 mov %ecx,%eax <-- trapping instruction
2c: 48 8d 34 40 lea (%rax,%rax,2),%rsi
30: 48 8d b4 36 a4 f6 32 lea -0x71cd095c(%rsi,%rsi,1),%rsi
37: 8e
38: 83 c2 01 add $0x1,%edx
3b: 48 rex.W
3c: 81 .byte 0x81
3d: fe 00 incb (%rax)
3f: d6 (bad)