netlink: 26 bytes leftover after parsing attributes in process `syz-executor.5'.
SELinux: security policydb version 18 (MLS) not backwards compatible
SELinux: failed to load policy
nla_parse: 3 callbacks suppressed
netlink: 26 bytes leftover after parsing attributes in process `syz-executor.3'.
INFO: task syz-executor.0:2353 blocked for more than 140 seconds.
      Not tainted 4.19.53+ #25
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kobject: 'wlan708' (00000000ee4f9786): kobject_cleanup, parent           (null)
syz-executor.0  D29496  2353   1994 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2826 [inline]
 __schedule+0x80d/0x1c70 kernel/sched/core.c:3474
 schedule+0x92/0x1c0 kernel/sched/core.c:3518
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline]
 rwsem_down_write_failed+0x774/0xc30 kernel/locking/rwsem-xadd.c:618
kobject: 'wlan708' (00000000ee4f9786): calling ktype release
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117
kobject: 'wlan708': free name
 __down_write arch/x86/include/asm/rwsem.h:142 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:72
 register_netdevice_notifier+0x7e/0x630 net/core/dev.c:1642
 raw_init+0x299/0x340 net/can/raw.c:343
kobject: 'rfkill2827' (0000000027178297): kobject_uevent_env
 can_create+0x288/0x4a0 net/can/af_can.c:183
 __sock_create+0x3d8/0x730 net/socket.c:1276
 sock_create net/socket.c:1316 [inline]
 __sys_socket+0x103/0x220 net/socket.c:1346
kobject: 'rfkill2827' (0000000027178297): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim2822/ieee80211/phy2822/rfkill2827'
 __do_sys_socket net/socket.c:1355 [inline]
 __se_sys_socket net/socket.c:1353 [inline]
 __x64_sys_socket+0x73/0xb0 net/socket.c:1353
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4592c9
Code: Bad RIP value.
RSP: 002b:00007f2a6c6adc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004592c9
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 000000000000001d
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2a6c6ae6d4
R13: 00000000004c7cfa R14: 00000000004de1f8 R15: 00000000ffffffff
INFO: task syz-executor.0:2358 blocked for more than 140 seconds.
      Not tainted 4.19.53+ #25
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D29496  2358   1994 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2826 [inline]
 __schedule+0x80d/0x1c70 kernel/sched/core.c:3474
 schedule+0x92/0x1c0 kernel/sched/core.c:3518
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline]
 rwsem_down_write_failed+0x774/0xc30 kernel/locking/rwsem-xadd.c:618
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117
 __down_write arch/x86/include/asm/rwsem.h:142 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:72
 register_netdevice_notifier+0x7e/0x630 net/core/dev.c:1642
 raw_init+0x299/0x340 net/can/raw.c:343
 can_create+0x288/0x4a0 net/can/af_can.c:183
 __sock_create+0x3d8/0x730 net/socket.c:1276
 sock_create net/socket.c:1316 [inline]
 __sys_socket+0x103/0x220 net/socket.c:1346
 __do_sys_socket net/socket.c:1355 [inline]
 __se_sys_socket net/socket.c:1353 [inline]
 __x64_sys_socket+0x73/0xb0 net/socket.c:1353
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4592c9
Code: Bad RIP value.
RSP: 002b:00007f2a6c68cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004592c9
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 000000000000001d
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2a6c68d6d4
R13: 00000000004c7cfa R14: 00000000004de1f8 R15: 00000000ffffffff

Showing all locks held in the system:
1 lock held by khungtaskd/1033:
kobject: 'phy2822' (00000000d1fd7990): kobject_uevent_env
 #0: 00000000cae1052e (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:4435
kobject: 'phy2822' (00000000d1fd7990): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim2822/ieee80211/phy2822'
1 lock held by rsyslogd/7671:
 #0: 0000000072581773 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:767
kobject: 'ieee80211' (000000007254eaf0): kobject_cleanup, parent           (null)
2 locks held by getty/7793:
 #0: 000000005e230eaa (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363
kobject: 'ieee80211' (000000007254eaf0): calling ktype release
 #1: 00000000fed57263 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154
kobject: 'ieee80211': free name
2 locks held by getty/7794:
 #0: 
kobject: 'hwsim2822' (000000001ce00dc3): kobject_uevent_env
0000000008345943 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363
 #1: 0000000045520b27 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154
2 locks held by getty/7795:
 #0: 000000000971c69a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363
 #1: 000000008e23b748 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154
2 locks held by getty/7796:
 #0: 0000000090a1c84a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363
 #1: 00000000112d38e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154
2 locks held by getty/7797:
 #0: 00000000a3b297a7 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363
kobject: 'hwsim2822' (000000001ce00dc3): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim2822'
 #1: 
kobject: 'hwsim2822' (000000001ce00dc3): kobject_uevent_env
0000000082cc0533
kobject: 'hwsim2822' (000000001ce00dc3): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim2822'
 (
kobject: 'hwsim2822' (000000001ce00dc3): kobject_cleanup, parent           (null)
&ldata->atomic_read_lock
kobject: 'hwsim2822' (000000001ce00dc3): calling ktype release
){+.+.}
kobject: 'hwsim2822': free name
, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154
kobject: 'phy2822' (00000000d1fd7990): kobject_cleanup, parent           (null)
2 locks held by getty/7798:
kobject: 'phy2822' (00000000d1fd7990): calling ktype release
 #0: 0000000072811efb (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363
 #1: 000000008aa9f8f3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154
2 locks held by getty/7799:
 #0: 00000000e3006aaa (&tty->ldisc_sem){++++}
kobject: 'rfkill2827' (0000000027178297): kobject_cleanup, parent           (null)
, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:363
kobject: 'rfkill2827' (0000000027178297): calling ktype release
 #1: 
kobject: 'rfkill2827': free name
000000002d573740
kobject: 'phy2822': free name
 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 drivers/tty/n_tty.c:2154
3 locks held by kworker/u4:5/20540:
 #0: 000000002765b0d0 ((wq_completion)"%s""netns"){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline]
 #0: 000000002765b0d0 ((wq_completion)"%s""netns"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: 000000002765b0d0 ((wq_completion)"%s""netns"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline]
 #0: 000000002765b0d0 ((wq_completion)"%s""netns"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline]
 #0: 000000002765b0d0 ((wq_completion)"%s""netns"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline]
 #0: 000000002765b0d0 ((wq_completion)"%s""netns"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
 #0: 000000002765b0d0 ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x87e/0x1750 kernel/workqueue.c:2124
 #1: 00000000a8b10b57 (net_cleanup_work){+.+.}, at: process_one_work+0x8b4/0x1750 kernel/workqueue.c:2128
 #2: 000000007411ddda (pernet_ops_rwsem){++++}, at: cleanup_net+0xae/0x960 net/core/net_namespace.c:519
1 lock held by syz-executor.0/2353:
 #0: 000000007411ddda (pernet_ops_rwsem){++++}, at: register_netdevice_notifier+0x7e/0x630 net/core/dev.c:1642
1 lock held by syz-executor.0/2358:
 #0: 000000007411ddda (pernet_ops_rwsem){++++}, at: register_netdevice_notifier+0x7e/0x630 net/core/dev.c:1642

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 1033 Comm: khungtaskd Not tainted 4.19.53+ #25
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
 watchdog+0x9df/0xee0 kernel/hung_task.c:287
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60