INFO: task syz-executor.1:8866 can't die for more than 143 seconds.
task:syz-executor.1 state:D stack:27024 pid: 8866 ppid: 32332 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4983 [inline]
__schedule+0xab2/0x4d90 kernel/sched/core.c:6293
schedule+0xd2/0x260 kernel/sched/core.c:6366
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x174/0x270 kernel/sched/completion.c:138
__flush_work+0x56c/0xb10 kernel/workqueue.c:3085
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3172
p9_conn_destroy net/9p/trans_fd.c:884 [inline]
p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919
p9_client_create+0x95a/0x1110 net/9p/client.c:1067
v9fs_session_init+0x1dd/0x1780 fs/9p/v9fs.c:408
v9fs_mount+0x73/0xa80 fs/9p/vfs_super.c:125
legacy_get_tree+0x105/0x220 fs/fs_context.c:610
vfs_get_tree+0x89/0x2f0 fs/super.c:1500
do_new_mount fs/namespace.c:2988 [inline]
path_mount+0x1320/0x1fa0 fs/namespace.c:3318
do_mount fs/namespace.c:3331 [inline]
__do_sys_mount fs/namespace.c:3539 [inline]
__se_sys_mount fs/namespace.c:3516 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3516
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: 0033:0x7ffbf3743ae9
RSP: 002b:00007ffbf2677188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffbf38570f0 RCX: 00007ffbf3743ae9
RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000
RBP: 00007ffbf379dff7 R08: 0000000020000140 R09: 0000000000000000
R10: 0000000000004010 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffc100a74f R14: 00007ffbf2677300 R15: 0000000000022000
INFO: task syz-executor.1:8866 blocked for more than 144 seconds.
Not tainted 5.16.0-rc2-next-20211125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27024 pid: 8866 ppid: 32332 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4983 [inline]
__schedule+0xab2/0x4d90 kernel/sched/core.c:6293
schedule+0xd2/0x260 kernel/sched/core.c:6366
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x174/0x270 kernel/sched/completion.c:138
__flush_work+0x56c/0xb10 kernel/workqueue.c:3085
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3172
p9_conn_destroy net/9p/trans_fd.c:884 [inline]
p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919
p9_client_create+0x95a/0x1110 net/9p/client.c:1067
v9fs_session_init+0x1dd/0x1780 fs/9p/v9fs.c:408
v9fs_mount+0x73/0xa80 fs/9p/vfs_super.c:125
legacy_get_tree+0x105/0x220 fs/fs_context.c:610
vfs_get_tree+0x89/0x2f0 fs/super.c:1500
do_new_mount fs/namespace.c:2988 [inline]
path_mount+0x1320/0x1fa0 fs/namespace.c:3318
do_mount fs/namespace.c:3331 [inline]
__do_sys_mount fs/namespace.c:3539 [inline]
__se_sys_mount fs/namespace.c:3516 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3516
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: 0033:0x7ffbf3743ae9
RSP: 002b:00007ffbf2677188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffbf38570f0 RCX: 00007ffbf3743ae9
RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000
RBP: 00007ffbf379dff7 R08: 0000000020000140 R09: 0000000000000000
R10: 0000000000004010 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffc100a74f R14: 00007ffbf2677300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb83220 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6244:
#0: ffff888022490870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
1 lock held by systemd-udevd/11284:
1 lock held by systemd-udevd/11285:
3 locks held by systemd-udevd/11687:
2 locks held by kworker/0:3/32268:
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2270
#1: ffffc90002ecfdb0 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2274
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc2-next-20211125-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:256 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:413
kthread+0x405/0x4f0 kernel/kthread.c:345
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: 947 Comm: kworker/u4:4 Not tainted 5.16.0-rc2-next-20211125-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy10 ieee80211_iface_work
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4714 [inline]
RIP: 0010:__lock_acquire+0x545/0x54a0 kernel/locking/lockdep.c:4977
Code: c7 48 c1 e9 03 88 44 24 50 48 b8 00 00 00 00 00 fc ff df 0f b6 04 01 84 c0 74 08 3c 03 0f 8e 88 10 00 00 41 8b b5 60 0a 00 00 <41> 89 f6 41 83 ee 01 0f 88 67 12 00 00 49 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc90004ef75c8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffffff9067ee08 RCX: 1ffff110035984f4
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffffffff8ff81e19
RBP: ffffffff8ff81d60 R08: 0000000000000000 R09: ffffffff8ff81947
R10: fffffbfff1ff0328 R11: 000000000000003f R12: ffff88801acc2820
R13: ffff88801acc1d40 R14: 0000000000040000 R15: 0000000000000002
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a5ccf86058 CR3: 000000006f500000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 00000000b8fecd19 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5637 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5602
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
__debug_check_no_obj_freed lib/debugobjects.c:980 [inline]
debug_check_no_obj_freed+0xc7/0x420 lib/debugobjects.c:1023
slab_free_hook mm/slub.c:1698 [inline]
slab_free_freelist_hook+0xeb/0x1c0 mm/slub.c:1749
slab_free mm/slub.c:3513 [inline]
kfree+0xe0/0x430 mm/slub.c:4561
ieee802_11_parse_elems_crc+0xb15/0x1050 net/mac80211/util.c:1517
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2208 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline]
ieee80211_ibss_rx_queued_mgmt+0xd0e/0x3130 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1468 [inline]
ieee80211_iface_work+0xa65/0xd00 net/mac80211/iface.c:1522
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2299
worker_thread+0x658/0x11f0 kernel/workqueue.c:2446
kthread+0x405/0x4f0 kernel/kthread.c:345
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 48 c1 e9 03 shr $0x3,%rcx
4: 88 44 24 50 mov %al,0x50(%rsp)
8: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
f: fc ff df
12: 0f b6 04 01 movzbl (%rcx,%rax,1),%eax
16: 84 c0 test %al,%al
18: 74 08 je 0x22
1a: 3c 03 cmp $0x3,%al
1c: 0f 8e 88 10 00 00 jle 0x10aa
22: 41 8b b5 60 0a 00 00 mov 0xa60(%r13),%esi
* 29: 41 89 f6 mov %esi,%r14d <-- trapping instruction
2c: 41 83 ee 01 sub $0x1,%r14d
30: 0f 88 67 12 00 00 js 0x129d
36: 49 rex.WB
37: b8 00 00 00 00 mov $0x0,%eax
3c: 00 fc add %bh,%ah
3e: ff .byte 0xff