INFO: task syz-executor.0:2234 blocked for more than 430 seconds.
      Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:    0 pid: 2234 ppid:     1 flags:0x00000001
Backtrace: 
[<81712400>] (__schedule) from [<81712e58>] (schedule+0x54/0xdc kernel/sched/core.c:6326)
 r10:837cbd2c r9:5ac3c35a r8:83104000 r7:8389a894 r6:00000001 r5:83795558
 r4:829ddc00
[<81712e04>] (schedule) from [<8071abf4>] (blk_mq_freeze_queue_wait+0x6c/0xa4 block/blk-mq.c:178)
 r5:83795558 r4:837959c0
[<8071ab88>] (blk_mq_freeze_queue_wait) from [<8071db68>] (blk_freeze_queue block/blk-mq.c:205 [inline])
[<8071ab88>] (blk_mq_freeze_queue_wait) from [<8071db68>] (blk_mq_freeze_queue+0x1c/0x20 block/blk-mq.c:214)
 r5:837cbc00 r4:83795550
[<8071db4c>] (blk_mq_freeze_queue) from [<809fcd3c>] (__loop_clr_fd+0x6c/0x428 drivers/block/loop.c:1122)
 r5:837cbc00 r4:837cbc00
[<809fccd0>] (__loop_clr_fd) from [<809fd19c>] (lo_release+0xa4/0xa8 drivers/block/loop.c:1761)
 r10:8220c44c r9:5ac3c35a r8:83104000 r7:8389a894 r6:00000001 r5:837cbd2c
 r4:837cbc00
[<809fd0f8>] (lo_release) from [<80706a4c>] (blkdev_put_whole block/bdev.c:694 [inline])
[<809fd0f8>] (lo_release) from [<80706a4c>] (blkdev_put+0xd4/0x27c block/bdev.c:956)
 r7:8389a894 r6:8389a840 r5:00000083 r4:83104000
[<80706978>] (blkdev_put) from [<80484bb0>] (kill_block_super+0x3c/0x74 fs/super.c:1400)
 r8:8220c490 r7:8220c920 r6:00000000 r5:00000083 r4:83104000
[<80484b74>] (kill_block_super) from [<80485824>] (deactivate_locked_super+0x54/0xb4 fs/super.c:335)
 r5:823245b4 r4:85273c00
[<804857d0>] (deactivate_locked_super) from [<804858e4>] (deactivate_super fs/super.c:366 [inline])
[<804857d0>] (deactivate_locked_super) from [<804858e4>] (deactivate_super+0x60/0x64 fs/super.c:362)
 r5:82ba5900 r4:85273c00
[<80485884>] (deactivate_super) from [<804a9738>] (cleanup_mnt+0x11c/0x180 fs/namespace.c:1137)
 r5:82ba5900 r4:00000002
[<804a961c>] (cleanup_mnt) from [<804a980c>] (__cleanup_mnt+0x14/0x18 fs/namespace.c:1144)
 r9:5ac3c35a r8:829de454 r7:8243d600 r6:829ddc00 r5:829de424 r4:00000000
[<804a97f8>] (__cleanup_mnt) from [<80266e24>] (task_work_run+0x8c/0xb8 kernel/task_work.c:164)
[<80266d98>] (task_work_run) from [<8020bff0>] (tracehook_notify_resume include/linux/tracehook.h:189 [inline])
[<80266d98>] (task_work_run) from [<8020bff0>] (do_work_pending+0x438/0x53c arch/arm/kernel/signal.c:630)
 r9:5ac3c35a r8:80200244 r7:fffffe30 r6:80200244 r5:84375fb0 r4:829ddc00
[<8020bbb8>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x20)
Exception stack(0x84375fb0 to 0x84375ff8)
5fa0:                                     00000000 0000000a 00000000 00000000
5fc0: 00085150 7ef14510 00120000 00000034 00085150 0281afc8 00000000 7ef144d0
5fe0: 7f0302ff 7ef14494 00014734 0004ce3c 60000010 7ef14510
 r10:00000034 r9:829ddc00 r8:80200244 r7:00000034 r6:00120000 r5:7ef14510
 r4:00085150
INFO: task udevd:11943 blocked for more than 430 seconds.
      Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:    0 pid:11943 ppid:  2031 flags:0x00000001
Backtrace: 
[<81712400>] (__schedule) from [<81712e58>] (schedule+0x54/0xdc kernel/sched/core.c:6326)
 r10:8389a894 r9:4800005d r8:8389a898 r7:858f3cbc r6:00000002 r5:83778000
 r4:83778000
[<81712e04>] (schedule) from [<81713474>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6385)
 r5:83778000 r4:8389a894
[<8171345c>] (schedule_preempt_disabled) from [<817147ac>] (__mutex_lock_common kernel/locking/mutex.c:680 [inline])
[<8171345c>] (schedule_preempt_disabled) from [<817147ac>] (__mutex_lock.constprop.0+0x170/0x54c kernel/locking/mutex.c:740)
[<8171463c>] (__mutex_lock.constprop.0) from [<81714c5c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1028)
 r9:4800005d r8:00000000 r7:8389a840 r6:82948540 r5:4800005d r4:83104000
[<81714c48>] (__mutex_lock_slowpath) from [<81714c9c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:283)
[<81714c60>] (mutex_lock) from [<80706fd4>] (blkdev_get_by_dev.part.0+0x44/0x2dc block/bdev.c:819)
[<80706f90>] (blkdev_get_by_dev.part.0) from [<807072b4>] (blkdev_get_by_dev+0x48/0x4c block/bdev.c:803)
 r10:858f3e50 r9:82948548 r8:807078e8 r7:82948540 r6:82948540 r5:4800005d
 r4:00700000
[<8070726c>] (blkdev_get_by_dev) from [<80707940>] (blkdev_open+0x58/0x88 block/fops.c:501)
 r7:82948540 r6:00000000 r5:837d65f0 r4:82948540
[<807078e8>] (blkdev_open) from [<8047d928>] (do_dentry_open+0x148/0x3f8 fs/open.c:822)
 r5:837d65f0 r4:82948540
[<8047d7e0>] (do_dentry_open) from [<8047f618>] (vfs_open+0x34/0x38 fs/open.c:957)
 r9:858f3f20 r8:00000000 r7:82948540 r6:82225d20 r5:00000000 r4:00028800
[<8047f5e4>] (vfs_open) from [<804936b8>] (do_open fs/namei.c:3426 [inline])
[<8047f5e4>] (vfs_open) from [<804936b8>] (path_openat+0x544/0x102c fs/namei.c:3559)
[<80493174>] (path_openat) from [<80495a20>] (do_filp_open+0x84/0x124 fs/namei.c:3586)
 r10:00000142 r9:83778000 r8:858f3e50 r7:00000000 r6:83778000 r5:858f3f20
 r4:858f3f58
[<8049599c>] (do_filp_open) from [<8047f908>] (do_sys_openat2+0xa8/0x16c fs/open.c:1212)
 r8:80200244 r7:ffffff9c r6:00000008 r5:848ab000 r4:858f3f58
[<8047f860>] (do_sys_openat2) from [<8047fda4>] (do_sys_open fs/open.c:1228 [inline])
[<8047f860>] (do_sys_openat2) from [<8047fda4>] (__do_sys_openat fs/open.c:1244 [inline])
[<8047f860>] (do_sys_openat2) from [<8047fda4>] (sys_openat+0xa4/0xcc fs/open.c:1239)
 r7:00000142 r6:00c36a40 r5:00c32948 r4:ffffff9c
[<8047fd00>] (sys_openat) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:64)
Exception stack(0x858f3fa8 to 0x858f3ff0)
3fa0:                   00c3e658 76f62840 ffffff9c 00c32948 000a8800 00000000
3fc0: 00c3e658 76f62840 00c36a40 00000142 000563e8 00c1f190 00000000 00c3e658
3fe0: 000561b4 7ec2f438 000166d8 76c2c350
 r5:76f62840 r4:00c3e658
NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace: 
[<816f56d0>] (dump_backtrace) from [<816f58bc>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:237)
 r7:00000000 r6:00000000 r5:600b0093 r4:81d6017c
[<816f58a4>] (show_stack) from [<816fe314>] (__dump_stack lib/dump_stack.c:88 [inline])
[<816f58a4>] (show_stack) from [<816fe314>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106)
[<816fe2cc>] (dump_stack_lvl) from [<816fe338>] (dump_stack+0x18/0x1c lib/dump_stack.c:113)
 r5:000b0013 r4:00000000
[<816fe320>] (dump_stack) from [<8083cd6c>] (nmi_cpu_backtrace+0x114/0x180 lib/nmi_backtrace.c:105)
[<8083cc58>] (nmi_cpu_backtrace) from [<8083ceec>] (nmi_trigger_cpumask_backtrace+0x114/0x1d0 lib/nmi_backtrace.c:62)
 r7:00000000 r6:8220c494 r5:8220cc70 r4:00000000
[<8083cdd8>] (nmi_trigger_cpumask_backtrace) from [<80210c54>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:865)
 r9:00022e00 r8:82204d00 r7:00007f67 r6:824839b0 r5:8220c5d4 r4:83433c40
[<80210c3c>] (arch_trigger_cpumask_backtrace) from [<80329f7c>] (trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline])
[<80210c3c>] (arch_trigger_cpumask_backtrace) from [<80329f7c>] (check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline])
[<80210c3c>] (arch_trigger_cpumask_backtrace) from [<80329f7c>] (watchdog+0x4a0/0x58c kernel/hung_task.c:295)
[<80329adc>] (watchdog) from [<8026a518>] (kthread+0x164/0x198 kernel/kthread.c:327)
 r10:8294de4c r9:00000000 r8:00000000 r7:80329adc r6:828cf180 r5:82a89240
 r4:828f2e00
[<8026a3b4>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:146)
Exception stack(0x82a25fb0 to 0x82a25ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026a3b4
 r4:82a89240
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2020 Comm: klogd Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: ARM-Versatile Express
PC is at selinux_socket_sendmsg+0xb0/0xc4 security/selinux/hooks.c:4991
LR is at sock_has_perm security/selinux/hooks.c:4634 [inline]
LR is at selinux_socket_sendmsg+0x3c/0xc4 security/selinux/hooks.c:4990
pc : [<8067b6e8>]    lr : [<8067b674>]    psr: 600f0013
sp : 8364ddf8  ip : 8364de44  fp : 8364de5c
r10: 00000121  r9 : 829b4500  r8 : 80200244
r7 : 8364deb0  r6 : 830ac280  r5 : 8343a100  r4 : 83f94640
r3 : 00000000  r2 : 00000000  r1 : 00000000  r0 : 00000000
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 30c5387d  Table: 83f94140  DAC: 00000000
CPU: 1 PID: 2020 Comm: klogd Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace: 
[<816f56d0>] (dump_backtrace) from [<816f58bc>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:237)
 r7:00000017 r6:8364dda8 r5:600f0193 r4:81d6017c
[<816f58a4>] (show_stack) from [<816fe314>] (__dump_stack lib/dump_stack.c:88 [inline])
[<816f58a4>] (show_stack) from [<816fe314>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106)
[<816fe2cc>] (dump_stack_lvl) from [<816fe338>] (dump_stack+0x18/0x1c lib/dump_stack.c:113)
 r5:000f0193 r4:00000001
[<816fe320>] (dump_stack) from [<80209080>] (show_regs+0x14/0x18 arch/arm/kernel/process.c:199)
[<8020906c>] (show_regs) from [<8083cd54>] (nmi_cpu_backtrace+0xfc/0x180 lib/nmi_backtrace.c:103)
[<8083cc58>] (nmi_cpu_backtrace) from [<8020fd58>] (do_handle_IPI+0x4c/0x3b4 arch/arm/kernel/smp.c:680)
 r7:00000017 r6:00000001 r5:8280cb80 r4:00000007
[<8020fd0c>] (do_handle_IPI) from [<802100e0>] (ipi_handler+0x20/0x28 arch/arm/kernel/smp.c:708)
 r9:829b4500 r8:8364dd10 r7:00000017 r6:8220cc8c r5:8280cb80 r4:82885d00
[<802100c0>] (ipi_handler) from [<802b9530>] (handle_percpu_devid_irq+0x9c/0x2d4 kernel/irq/chip.c:933)
[<802b9494>] (handle_percpu_devid_irq) from [<802b2ba0>] (generic_handle_irq_desc include/linux/irqdesc.h:158 [inline])
[<802b9494>] (handle_percpu_devid_irq) from [<802b2ba0>] (handle_irq_desc kernel/irq/irqdesc.c:646 [inline])
[<802b9494>] (handle_percpu_devid_irq) from [<802b2ba0>] (generic_handle_domain_irq+0x48/0x8c kernel/irq/irqdesc.c:680)
 r10:00000121 r9:829b4500 r8:00000000 r7:df80200c r6:829b4500 r5:00000007
 r4:82888000 r3:802b9494
[<802b2b58>] (generic_handle_domain_irq) from [<8084fa80>] (gic_handle_irq+0x68/0x7c drivers/irqchip/irq-gic.c:372)
 r7:df80200c r6:820a5fc4 r5:df802000 r4:8220cc8c
[<8084fa18>] (gic_handle_irq) from [<81710264>] (generic_handle_arch_irq+0x60/0x80 kernel/irq/handle.c:243)
 r7:8364dda8 r6:81f092c0 r5:81f092d8 r4:820a5fb8
[<81710204>] (generic_handle_arch_irq) from [<80200abc>] (__irq_svc+0x3c/0x64 arch/arm/kernel/entry-armv.S:202)
Exception stack(0x8364dda8 to 0x8364ddf0)
dda0:                   00000000 00000000 00000000 00000000 83f94640 8343a100
ddc0: 830ac280 8364deb0 80200244 829b4500 00000121 8364de5c 8364de44 8364ddf8
dde0: 8067b674 8067b6e8 600f0013 ffffffff
 r9:829b4500 r8:80200244 r7:8364dddc r6:ffffffff r5:600f0013 r4:8067b6e8
[<8067b638>] (selinux_socket_sendmsg) from [<806704ec>] (security_socket_sendmsg+0x40/0x5c security/security.c:2207)
 r5:0000007e r4:81f1e5f4
[<806704ac>] (security_socket_sendmsg) from [<8129dca8>] (sock_sendmsg+0x1c/0x4c net/socket.c:721)
 r7:00004000 r6:00000000 r5:830ac280 r4:8364deb0
[<8129dc8c>] (sock_sendmsg) from [<8129fc14>] (__sys_sendto+0xcc/0x118 net/socket.c:2036)
 r5:830ac280 r4:00000000
[<8129fb48>] (__sys_sendto) from [<8129fca4>] (__do_sys_send net/socket.c:2058 [inline])
[<8129fb48>] (__sys_sendto) from [<8129fca4>] (sys_send+0x20/0x28 net/socket.c:2055)
 r7:00000121 r6:00000001 r5:76fce080 r4:0189e190
[<8129fc84>] (sys_send) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:64)
Exception stack(0x8364dfa8 to 0x8364dff0)
dfa0:                   0189e190 76fce080 00000003 018a5f30 0000007e 00004000
dfc0: 0189e190 76fce080 00000001 00000121 7e89fcc0 00000000 76fce080 00000000
dfe0: 00000000 7e89fbf8 76effb88 76f04e78