INFO: task syz-executor.5:29326 blocked for more than 143 seconds.
Not tainted 5.15.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:25008 pid:29326 ppid: 6837 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4940 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6287
schedule+0xd3/0x270 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+0x176/0x280 kernel/sched/completion.c:138
__flush_work+0x56e/0xb10 kernel/workqueue.c:3083
nsim_fib_destroy+0x8c/0x1a0 drivers/net/netdevsim/fib.c:1618
nsim_dev_reload_destroy+0x20e/0x300 drivers/net/netdevsim/dev.c:1558
nsim_dev_reload_down+0xee/0x190 drivers/net/netdevsim/dev.c:883
devlink_reload+0x58b/0x720 net/core/devlink.c:3970
devlink_nl_cmd_reload+0x7de/0x1230 net/core/devlink.c:4091
genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:731
genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:792
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
___sys_sendmsg+0xf3/0x170 net/socket.c:2463
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
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: 0033:0x7f70fc4f58d9
RSP: 002b:00007f70f99e8188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f70fc5fa260 RCX: 00007f70fc4f58d9
RDX: 0000000000000000 RSI: 0000000020000600 RDI: 0000000000000007
RBP: 00007f70fc54fcb4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcdb6f127f R14: 00007f70f99e8300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#0: ffffffff8b980220 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446
1 lock held by in:imklog/6469:
#0: ffff88807e11dc70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
3 locks held by kworker/0:5/2854:
#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:634 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268
#1: ffffc90004ef7db0 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272
#2: ffff8881bfa93240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1b9/0x2490 drivers/net/netdevsim/fib.c:1474
2 locks held by kworker/u4:11/29156:
4 locks held by syz-executor.5/29326:
#0: ffffffff8d17a690 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8d17a748 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d17a748 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x3e0/0x580 net/netlink/genetlink.c:790
#2: ffffffff8d112cc8 (devlink_mutex){+.+.}-{3:3}, at: devlink_nl_pre_doit+0x2b/0xa00 net/core/devlink.c:502
#3: ffff8880777e8658 (&nsim_bus_dev->nsim_bus_reload_lock){+.+.}-{3:3}, at: nsim_dev_reload_down+0x5c/0x190 drivers/net/netdevsim/dev.c:870
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.15.0-rc4-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:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x3e5/0x4d0 kernel/kthread.c:319
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: 29145 Comm: kworker/u4:6 Not tainted 5.15.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy12 ieee80211_iface_work
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x13/0x60 kernel/kcov.c:196
Code: 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 00 65 8b 05 f9 e3 8b 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 <65> 48 8b 14 25 40 f0 01 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82
RSP: 0018:ffffc900197e7258 EFLAGS: 00000246
RAX: 0000000080000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff889323d5 RDI: 0000000000000003
RBP: 0000000000000006 R08: ffffffff8aac4f80 R09: ffffffff889323c3
R10: 0000000000000020 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff8881c1603475 R15: ffff8881c1603474
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f71be88b000 CR3: 000000006fad1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
_ieee802_11_parse_elems_crc+0x1f5/0x20f0 net/mac80211/util.c:1063
ieee802_11_parse_elems_crc+0x89e/0xfe0 net/mac80211/util.c:1490
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2207 [inline]
ieee80211_rx_mgmt_probe_beacon+0x187/0x17c0 net/mac80211/ibss.c:1605
ieee80211_ibss_rx_queued_mgmt+0xd37/0x1610 net/mac80211/ibss.c:1635
ieee80211_iface_process_skb net/mac80211/iface.c:1439 [inline]
ieee80211_iface_work+0xa65/0xd00 net/mac80211/iface.c:1493
process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
kthread+0x3e5/0x4d0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 00 4d 8b add %cl,-0x75(%rbp)
3: 03 48 0f add 0xf(%rax),%ecx
6: bd ca 49 8b 45 mov $0x458b49ca,%ebp
b: 00 48 63 add %cl,0x63(%rax)
e: c9 leaveq
f: e9 64 ff ff ff jmpq 0xffffff78
14: 0f 1f 00 nopl (%rax)
17: 65 8b 05 f9 e3 8b 7e mov %gs:0x7e8be3f9(%rip),%eax # 0x7e8be417
1e: 89 c1 mov %eax,%ecx
20: 48 8b 34 24 mov (%rsp),%rsi
24: 81 e1 00 01 00 00 and $0x100,%ecx
* 2a: 65 48 8b 14 25 40 f0 mov %gs:0x1f040,%rdx <-- trapping instruction
31: 01 00
33: a9 00 01 ff 00 test $0xff0100,%eax
38: 74 0e je 0x48
3a: 85 c9 test %ecx,%ecx
3c: 74 35 je 0x73
3e: 8b .byte 0x8b
3f: 82 .byte 0x82