INFO: task systemd-udevd:9700 blocked for more than 143 seconds.
Not tainted 5.15.0-next-20211115-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:systemd-udevd state:D stack:26064 pid: 9700 ppid: 2971 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4987 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6268
schedule+0xd2/0x260 kernel/sched/core.c:6341
io_schedule+0xee/0x170 kernel/sched/core.c:8386
folio_wait_bit_common+0x4f2/0xa60 mm/filemap.c:1371
folio_wait_bit mm/filemap.c:1431 [inline]
folio_wait_locked include/linux/pagemap.h:835 [inline]
folio_wait_locked include/linux/pagemap.h:832 [inline]
wait_on_page_locked include/linux/pagemap.h:847 [inline]
wait_on_page_read mm/filemap.c:3430 [inline]
do_read_cache_page+0x986/0x11a0 mm/filemap.c:3473
read_mapping_page include/linux/pagemap.h:635 [inline]
read_part_sector+0xf6/0x5b0 block/partitions/core.c:728
adfspart_check_ICS+0x9d/0xc90 block/partitions/acorn.c:360
check_partition block/partitions/core.c:149 [inline]
blk_add_partitions block/partitions/core.c:613 [inline]
bdev_disk_changed+0x759/0x1100 block/partitions/core.c:699
blkdev_get_whole+0x206/0x2d0 block/bdev.c:684
blkdev_get_by_dev.part.0+0x354/0xb50 block/bdev.c:826
blkdev_get_by_dev+0x6b/0x80 block/bdev.c:859
blkdev_open+0x154/0x2e0 block/fops.c:501
do_dentry_open+0x4c8/0x1250 fs/open.c:822
do_open fs/namei.c:3426 [inline]
path_openat+0x1cad/0x2750 fs/namei.c:3559
do_filp_open+0x1aa/0x400 fs/namei.c:3586
do_sys_openat2+0x16d/0x4d0 fs/open.c:1212
do_sys_open fs/open.c:1228 [inline]
__do_sys_open fs/open.c:1236 [inline]
__se_sys_open fs/open.c:1232 [inline]
__x64_sys_open+0x119/0x1c0 fs/open.c:1232
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: 0033:0x7fbf987b5840
RSP: 002b:00007fff0e86ae38 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000560e8a676e40 RCX: 00007fbf987b5840
RDX: 0000560e886f6fe3 RSI: 00000000000a0800 RDI: 0000560e8a6778a0
RBP: 00007fff0e86afb0 R08: 0000560e886f6670 R09: 0000000000000010
R10: 0000560e886f6d0c R11: 0000000000000246 R12: 00007fff0e86af00
R13: 0000560e8a685870 R14: 0000000000000003 R15: 000000000000000e
INFO: task syz-executor.4:25089 can't die for more than 143 seconds.
task:syz-executor.4 state:D stack:28152 pid:25089 ppid: 1051 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4987 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6268
schedule+0xd2/0x260 kernel/sched/core.c:6341
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6400
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
blkdev_put+0x97/0x9e0 block/bdev.c:914
blkdev_close+0x6a/0x80 block/fops.c:515
__fput+0x286/0x9f0 fs/file_table.c:280
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f47e193972b
RSP: 002b:00007ffc9aeeacd0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f47e193972b
RDX: 0000000000000000 RSI: 00007f47e174a878 RDI: 0000000000000004
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2d52c548
R10: 0000000000000109 R11: 0000000000000293 R12: 00007f47e1a9ab60
R13: 00007f47e1a9ab60 R14: 00007f47e1a99f60 R15: 00000000001b96d2
INFO: task syz-executor.4:25089 blocked for more than 143 seconds.
Not tainted 5.15.0-next-20211115-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28152 pid:25089 ppid: 1051 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4987 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6268
schedule+0xd2/0x260 kernel/sched/core.c:6341
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6400
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
blkdev_put+0x97/0x9e0 block/bdev.c:914
blkdev_close+0x6a/0x80 block/fops.c:515
__fput+0x286/0x9f0 fs/file_table.c:280
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f47e193972b
RSP: 002b:00007ffc9aeeacd0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f47e193972b
RDX: 0000000000000000 RSI: 00007f47e174a878 RDI: 0000000000000004
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2d52c548
R10: 0000000000000109 R11: 0000000000000293 R12: 00007f47e1a9ab60
R13: 00007f47e1a9ab60 R14: 00007f47e1a99f60 R15: 00000000001b96d2
Showing all locks held in the system:
3 locks held by kworker/u4:0/8:
1 lock held by khungtaskd/27:
#0: ffffffff8bb83aa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6236:
#0: ffff88801964b770 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
1 lock held by systemd-udevd/9700:
#0: ffff88801a7ea918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb50 block/bdev.c:819
1 lock held by syz-executor.4/25089:
#0: ffff88801a7ea918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x97/0x9e0 block/bdev.c:914
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.0-next-20211115-syzkaller #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+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:254 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:339
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 18854 Comm: kworker/u4:10 Not tainted 5.15.0-next-20211115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy13 ieee80211_iface_work
RIP: 0010:__kfence_free+0x2/0x150 mm/kfence/core.c:935
Code: e8 b3 f9 b8 ff 5b 4c 89 e0 41 5c c3 48 89 de 48 c7 c7 20 ce cc 8b e8 8d 5d 48 02 eb b0 e8 a6 be ff ff eb ce 0f 1f 40 00 41 54 <49> 89 fc 55 53 4c 89 e3 e8 81 f9 b8 ff 48 8b 2d f2 1c 97 09 bf ff
RSP: 0018:ffffc9000461fa48 EFLAGS: 00000286
RAX: ffff88823bc00000 RBX: ffff88823bd3cc00 RCX: ffff88823bd3cc00
RDX: 000000000013cc00 RSI: ffffea0008ef4f00 RDI: ffff88823bd3cc00
RBP: ffffea0008ef4f00 R08: 0000000000000001 R09: ffffffff889f4cde
R10: ffff88823bd3cc00 R11: 000000000000003f R12: 0000000000000001
R13: ffff888010c41dc0 R14: ffffffff889f4cde R15: 000000000000004c
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff73219b000 CR3: 000000000b88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
do_slab_free mm/slub.c:3501 [inline]
slab_free mm/slub.c:3514 [inline]
kfree+0x47f/0x560 mm/slub.c:4561
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1611 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1b1e/0x3130 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1466 [inline]
ieee80211_iface_work+0xa65/0xd00 net/mac80211/iface.c:1520
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: e8 b3 f9 b8 ff callq 0xffb8f9b8
5: 5b pop %rbx
6: 4c 89 e0 mov %r12,%rax
9: 41 5c pop %r12
b: c3 retq
c: 48 89 de mov %rbx,%rsi
f: 48 c7 c7 20 ce cc 8b mov $0xffffffff8bccce20,%rdi
16: e8 8d 5d 48 02 callq 0x2485da8
1b: eb b0 jmp 0xffffffcd
1d: e8 a6 be ff ff callq 0xffffbec8
22: eb ce jmp 0xfffffff2
24: 0f 1f 40 00 nopl 0x0(%rax)
28: 41 54 push %r12
* 2a: 49 89 fc mov %rdi,%r12 <-- trapping instruction
2d: 55 push %rbp
2e: 53 push %rbx
2f: 4c 89 e3 mov %r12,%rbx
32: e8 81 f9 b8 ff callq 0xffb8f9b8
37: 48 8b 2d f2 1c 97 09 mov 0x9971cf2(%rip),%rbp # 0x9971d30
3e: bf .byte 0xbf
3f: ff .byte 0xff