INFO: task syz-executor.2:11660 can't die for more than 143 seconds.
task:syz-executor.2 state:D stack:28176 pid:11660 ppid: 3621 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5107 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6422
schedule+0xd2/0x1f0 kernel/sched/core.c:6494
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6553
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4a1/0x11f0 fs/open.c:824
do_open fs/namei.c:3469 [inline]
path_openat+0x1c71/0x2910 fs/namei.c:3602
do_filp_open+0x1aa/0x400 fs/namei.c:3629
do_sys_openat2+0x16d/0x4c0 fs/open.c:1212
do_sys_open fs/open.c:1228 [inline]
__do_sys_openat fs/open.c:1244 [inline]
__se_sys_openat fs/open.c:1239 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1239
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: 0033:0x7fe2d1c890e9
RSP: 002b:00007fe2d2d00168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe2d1d9bf60 RCX: 00007fe2d1c890e9
RDX: 0000000000000080 RSI: 00000000200027c0 RDI: ffffffffffffff9c
RBP: 00007fe2d1ce308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6a8b2baf R14: 00007fe2d2d00300 R15: 0000000000022000
INFO: task syz-executor.2:11660 blocked for more than 143 seconds.
Not tainted 5.18.0-rc3-next-20220420-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28176 pid:11660 ppid: 3621 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5107 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6422
schedule+0xd2/0x1f0 kernel/sched/core.c:6494
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6553
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4a1/0x11f0 fs/open.c:824
do_open fs/namei.c:3469 [inline]
path_openat+0x1c71/0x2910 fs/namei.c:3602
do_filp_open+0x1aa/0x400 fs/namei.c:3629
do_sys_openat2+0x16d/0x4c0 fs/open.c:1212
do_sys_open fs/open.c:1228 [inline]
__do_sys_openat fs/open.c:1244 [inline]
__se_sys_openat fs/open.c:1239 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1239
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: 0033:0x7fe2d1c890e9
RSP: 002b:00007fe2d2d00168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe2d1d9bf60 RCX: 00007fe2d1c890e9
RDX: 0000000000000080 RSI: 00000000200027c0 RDI: ffffffffffffff9c
RBP: 00007fe2d1ce308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6a8b2baf R14: 00007fe2d2d00300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8bd84f60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
2 locks held by getty/3277:
#0: ffff888015c02098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b832e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2111
6 locks held by kworker/1:3/3664:
2 locks held by syz-executor.4/11654:
#0: ffffffff8c81ad08 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
#1: ffffffff8bc521a8 (system_transition_mutex){+.+.}-{3:3}, at: snapshot_open+0x3b/0x2a0 kernel/power/user.c:54
1 lock held by syz-executor.2/11660:
#0: ffffffff8c81ad08 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.18.0-rc3-next-20220420-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+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:256 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:413
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3699 Comm: kworker/u4:7 Not tainted 5.18.0-rc3-next-20220420-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy9 ieee80211_iface_work
RIP: 0010:__lock_acquire+0xd89/0x5660 kernel/locking/lockdep.c:4923
Code: 01 00 00 00 0f 86 c8 00 00 00 89 05 81 57 1e 0e e9 bd 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 80 3c 02 00 <0f> 85 1e 2d 00 00 48 81 3b a0 53 27 8f 0f 84 4f f3 ff ff 41 83 fa
RSP: 0018:ffffc90003d2f5a0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffffffff9083e8a8 RCX: 0000000000000000
RDX: 1ffffffff2107d15 RSI: 0000000000000000 RDI: ffffffff9083e8a8
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888022088000 R14: 0000000000000000 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a9a21910c0 CR3: 000000000ba8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__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:1704 [inline]
slab_free_freelist_hook+0xeb/0x1c0 mm/slub.c:1755
slab_free mm/slub.c:3509 [inline]
kfree+0xd6/0x4d0 mm/slub.c:4559
ieee802_11_parse_elems_crc+0xb15/0x1050 net/mac80211/util.c:1548
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+0xda5/0x33f0 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: 01 00 add %eax,(%rax)
2: 00 00 add %al,(%rax)
4: 0f 86 c8 00 00 00 jbe 0xd2
a: 89 05 81 57 1e 0e mov %eax,0xe1e5781(%rip) # 0xe1e5791
10: e9 bd 00 00 00 jmpq 0xd2
15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1c: fc ff df
1f: 48 89 da mov %rbx,%rdx
22: 48 c1 ea 03 shr $0x3,%rdx
26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
* 2a: 0f 85 1e 2d 00 00 jne 0x2d4e <-- trapping instruction
30: 48 81 3b a0 53 27 8f cmpq $0xffffffff8f2753a0,(%rbx)
37: 0f 84 4f f3 ff ff je 0xfffff38c
3d: 41 rex.B
3e: 83 .byte 0x83
3f: fa cli