INFO: task syz-executor.2:11853 blocked for more than 143 seconds.
      Tainted: G        W         5.13.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:28032 pid:11853 ppid: 11037 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:4683 [inline]
 __schedule+0x934/0x2710 kernel/sched/core.c:5940
 schedule+0xd3/0x270 kernel/sched/core.c:6019
 rwsem_down_write_slowpath+0x7c2/0x11d0 kernel/locking/rwsem.c:1106
 __down_write_common kernel/locking/rwsem.c:1261 [inline]
 __down_write_common kernel/locking/rwsem.c:1258 [inline]
 __down_write kernel/locking/rwsem.c:1270 [inline]
 down_write+0x137/0x150 kernel/locking/rwsem.c:1407
 inode_lock include/linux/fs.h:774 [inline]
 do_truncate+0x12a/0x200 fs/open.c:62
 handle_truncate fs/namei.c:3017 [inline]
 do_open fs/namei.c:3365 [inline]
 path_openat+0x20e4/0x27e0 fs/namei.c:3494
 do_filp_open+0x190/0x3d0 fs/namei.c:3521
 do_sys_openat2+0x16d/0x420 fs/open.c:1195
 do_sys_open fs/open.c:1211 [inline]
 __do_sys_openat fs/open.c:1227 [inline]
 __se_sys_openat fs/open.c:1222 [inline]
 __x64_sys_openat+0x13f/0x1f0 fs/open.c:1222
 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: 0033:0x4665d9
RSP: 002b:00007f7aff836188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004665d9
RDX: 0000000000007a05 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001700 R11: 0000000000000246 R12: 000000000056c0f0
R13: 00007ffd0ab4082f R14: 00007f7aff836300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 1628 Comm: khungtaskd Tainted: G        W         5.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:96
 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
 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:209 [inline]
 watchdog+0xd4b/0xfb0 kernel/hung_task.c:294
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 13641 Comm: kworker/u4:7 Tainted: G        W         5.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy82 ieee80211_iface_work
RIP: 0010:check_kcov_mode+0x7/0x40 kernel/kcov.c:163
Code: fe ff ff 48 89 df e8 48 3d 45 00 e9 a1 fe ff ff 48 8b 3c 24 e8 3a 3d 45 00 e9 18 fe ff ff cc cc cc cc cc 65 8b 05 e9 3e 8d 7e <89> c2 81 e2 00 01 00 00 a9 00 01 ff 00 74 10 31 c0 85 d2 74 15 8b
RSP: 0018:ffffc900021df338 EFLAGS: 00000202
RAX: 0000000080000000 RBX: 0000000000000001 RCX: 0000000000000005
RDX: 0000000000000000 RSI: ffff888032f52080 RDI: 0000000000000003
RBP: 0000000000000010 R08: ffffffff8aa96160 R09: ffffffff88804a3b
R10: 000000000000002b R11: 00000000000000dd R12: ffff888032f52080
R13: dffffc0000000000 R14: ffff888039205894 R15: ffff888039205893
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fddd91ce000 CR3: 000000001e3e7000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 write_comp_data kernel/kcov.c:218 [inline]
 __sanitizer_cov_trace_switch+0x63/0xf0 kernel/kcov.c:320
 _ieee802_11_parse_elems_crc+0x2bb/0x1f90 net/mac80211/util.c:1075
 ieee802_11_parse_elems_crc+0x89e/0xfe0 net/mac80211/util.c:1478
 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2186 [inline]
 ieee80211_rx_mgmt_probe_beacon+0x17f/0x17b0 net/mac80211/ibss.c:1612
 ieee80211_ibss_rx_queued_mgmt+0xd82/0x15f0 net/mac80211/ibss.c:1642
 ieee80211_iface_process_skb net/mac80211/iface.c:1426 [inline]
 ieee80211_iface_work+0x7f7/0xa40 net/mac80211/iface.c:1462
 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295