wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) INFO: task systemd-udevd:17212 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. systemd-udevd D27752 17212 4704 0x00000100 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 blkdev_put+0x30/0x520 fs/block_dev.c:1839 blkdev_close+0x86/0xb0 fs/block_dev.c:1888 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fede0804270 Code: Bad RIP value. RSP: 002b:00007fff685f0e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) RAX: 0000000000000000 RBX: 000000000000000f RCX: 00007fede0804270 RDX: 00007fede07eeb58 RSI: 0000000000000000 RDI: 000000000000000f RBP: 00007fede16be710 R08: 00005616fc189f70 R09: 0000000000000000 R10: 0000000000000030 R11: 0000000000000246 R12: 0000000000000002 R13: 00007fff685f0ee8 R14: 00005616fc18b2e0 R15: 000000000000000f INFO: task syz-executor.4:17388 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28104 17388 8136 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x29c/0x470 kernel/sched/completion.c:115 __flush_work+0x4bb/0x8b0 kernel/workqueue.c:2926 lru_add_drain_all+0x374/0x4d0 mm/swap.c:699 invalidate_bdev fs/block_dev.c:97 [inline] __invalidate_device+0xe1/0x120 fs/block_dev.c:2165 invalidate_partition+0x81/0xb0 block/genhd.c:1593 drop_partitions.isra.0+0x9c/0x190 block/partition-generic.c:454 rescan_partitions+0xab/0x970 block/partition-generic.c:527 __blkdev_reread_part+0x189/0x220 block/ioctl.c:173 blkdev_reread_part+0x23/0x40 block/ioctl.c:193 loop_reread_partitions drivers/block/loop.c:645 [inline] loop_set_status+0x103e/0x1800 drivers/block/loop.c:1330 loop_set_status64+0xb2/0x110 drivers/block/loop.c:1450 lo_ioctl+0x41f/0x20e0 drivers/block/loop.c:1593 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0x5cb/0x1a80 block/ioctl.c:601 block_ioctl+0xe9/0x130 fs/block_dev.c:1906 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fc3c6c507f7 Code: Bad RIP value. RSP: 002b:00007fc3c41a4ef8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fc3c41a4f40 RCX: 00007fc3c6c507f7 RDX: 00007fc3c41a5050 RSI: 0000000000004c04 RDI: 0000000000000005 RBP: 00007fc3c6caae8f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007fc3c41a5050 R13: 00007ffecae7b65f R14: 00007fc3c41a5300 R15: 0000000000022000 INFO: task syz-executor.4:17394 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D29144 17394 8136 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 blkdev_put+0x30/0x520 fs/block_dev.c:1839 blkdev_close+0x86/0xb0 fs/block_dev.c:1888 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fc3c6c0367b Code: Bad RIP value. RSP: 002b:00007fc3c4162e80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 00007fc3c41636bc RCX: 00007fc3c6c0367b RDX: 0000000000000007 RSI: 0000000000004c00 RDI: 0000000000000008 RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000010 R13: 0000000000000007 R14: 0000000000000000 R15: 0000000000000000 Showing all locks held in the system: 3 locks held by kworker/0:1/14: #0: 000000006828bc8f ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000026c44623 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f7ed94b0 (rtnl_mutex){+.+.}, at: addrconf_dad_work+0x9c/0x10a0 net/ipv6/addrconf.c:3989 1 lock held by khungtaskd/1570: #0: 000000007113acae (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 3 locks held by kworker/0:2/3686: #0: 0000000035aad413 ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000078a3aca8 (deferred_process_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f7ed94b0 (rtnl_mutex){+.+.}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:150 1 lock held by systemd-journal/4684: 3 locks held by kworker/u4:9/11294: #0: 00000000fd1c16b5 ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000a9831e63 (net_cleanup_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 0000000046052062 (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x8b0 net/core/net_namespace.c:521 1 lock held by systemd-udevd/17212: #0: 000000003d1afbfb (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x30/0x520 fs/block_dev.c:1839 1 lock held by syz-executor.3/17240: 2 locks held by syz-executor.4/17388: #0: 000000003d1afbfb (&bdev->bd_mutex){+.+.}, at: blkdev_reread_part+0x1b/0x40 block/ioctl.c:192 #1: 0000000034312f59 (lock#6){+.+.}, at: lru_add_drain_all+0x5a/0x4d0 mm/swap.c:681 1 lock held by syz-executor.4/17394: #0: 000000003d1afbfb (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x30/0x520 fs/block_dev.c:1839 2 locks held by syz-executor.5/17409: #0: 00000000f7ed94b0 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] #0: 00000000f7ed94b0 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779 #1: 0000000098873006 (cpu_hotplug_lock.rw_sem){++++}, at: get_online_cpus include/linux/cpu.h:137 [inline] #1: 0000000098873006 (cpu_hotplug_lock.rw_sem){++++}, at: flush_all_backlogs net/core/dev.c:5276 [inline] #1: 0000000098873006 (cpu_hotplug_lock.rw_sem){++++}, at: rollback_registered_many+0x3a8/0xe70 net/core/dev.c:8181 1 lock held by syz-executor.5/17411: #0: 00000000f7ed94b0 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] #0: 00000000f7ed94b0 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779 3 locks held by syz-executor.1/17439: #0: 0000000063b182a2 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000fc3c2ec2 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000fc3c2ec2 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 #2: 00000000f7ed94b0 (rtnl_mutex){+.+.}, at: nl80211_pre_doit+0x34f/0x620 net/wireless/nl80211.c:13089 2 locks held by syz-executor.1/17448: #0: 0000000063b182a2 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000fc3c2ec2 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000fc3c2ec2 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 2 locks held by syz-executor.1/17449: #0: 0000000063b182a2 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000fc3c2ec2 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000fc3c2ec2 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 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+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 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 CPU: 1 PID: 17240 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:unwind_next_frame+0x425/0x1400 arch/x86/kernel/unwind_orc.c:427 Code: f9 4c 89 c7 e8 3c f2 ff ff 48 85 c0 49 89 c7 74 6a 4d 8d 47 04 48 b8 00 00 00 00 00 fc ff df 4c 89 c2 48 c1 ea 03 0f b6 04 02 <4c> 89 c2 83 e2 07 38 d0 7f 08 84 c0 0f 85 23 0c 00 00 41 0f b6 47 RSP: 0000:ffff88804886f6d8 EFLAGS: 00000807 RAX: 0000000000000000 RBX: 1ffff1100910dee4 RCX: ffffffff812a21eb RDX: 1ffffffff1721550 RSI: ffffffff8b90aa80 RDI: ffffffff8b32deb4 RBP: 0000000000000001 R08: ffffffff8b90aa84 R09: ffffffff8b90aa80 R10: ffff88804886f867 R11: 0000000000074071 R12: ffff88804886f850 R13: ffff88804886f83d R14: ffff88804886f808 R15: ffffffff8b90aa80 FS: 00007f7ed0af7700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7ed356aa91 CR3: 00000000af7de000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc mm/slab.c:3397 [inline] kmem_cache_alloc+0x110/0x370 mm/slab.c:3557 __sigqueue_alloc+0x246/0x4c0 kernel/signal.c:429 __send_signal+0xec9/0x15c0 kernel/signal.c:1130 specific_send_sig_info kernel/signal.c:1258 [inline] force_sig_info+0x262/0x3b0 kernel/signal.c:1310 force_sig_info_fault.constprop.0+0x1e6/0x320 arch/x86/mm/fault.c:226 __bad_area_nosemaphore+0x2c1/0x400 arch/x86/mm/fault.c:910 __bad_area arch/x86/mm/fault.c:944 [inline] bad_area_access_error+0x25c/0x4a0 arch/x86/mm/fault.c:983 __do_page_fault+0xb09/0xd60 arch/x86/mm/fault.c:1392 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0033:0x7f7ed356a3d2 Code: ff e8 32 33 01 00 85 c0 0f 84 ba 01 00 00 64 f0 83 2c 25 b8 ff ff ff 01 e8 3b d1 00 00 48 8b 0c 24 8b 00 48 8b 99 80 00 00 00 <89> 81 88 00 00 00 85 c0 75 06 48 83 fb ff 74 18 48 63 44 24 14 48 RSP: 002b:00007f7ed0af71a0 EFLAGS: 00010203 RAX: 0000000000000013 RBX: 00000002be5741c3 RCX: 00007f7ed356aa09 RDX: 00007f7ed356a3ae RSI: 0000000000000001 RDI: 00007f7ed0af75f0 RBP: 00007f7ed361de8f R08: 00007f7ed0af71a0 R09: 00007f7ed361de8f R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd9cf4d41f R14: 00007f7ed0af7300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: f9 stc 1: 4c 89 c7 mov %r8,%rdi 4: e8 3c f2 ff ff callq 0xfffff245 9: 48 85 c0 test %rax,%rax c: 49 89 c7 mov %rax,%r15 f: 74 6a je 0x7b 11: 4d 8d 47 04 lea 0x4(%r15),%r8 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 4c 89 c2 mov %r8,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax * 2a: 4c 89 c2 mov %r8,%rdx <-- trapping instruction 2d: 83 e2 07 and $0x7,%edx 30: 38 d0 cmp %dl,%al 32: 7f 08 jg 0x3c 34: 84 c0 test %al,%al 36: 0f 85 23 0c 00 00 jne 0xc5f 3c: 41 rex.B 3d: 0f .byte 0xf 3e: b6 47 mov $0x47,%dh