INFO: task kworker/0:1:3548 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1     state:D stack:0     pid:3548  tgid:3548  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:dffddd84 r9:00000002 r8:60000113 r7:829171a0 r6:dffddd8c r5:84b8e000
 r4:84b8e000
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84b8e000 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dffdde08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84ebae40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84b8e000 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfb93000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8491678c r4:849bb780
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8491678c r4:849bb780
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84b8e000 r8:849bb7ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:849bb780
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:849bb780 r8:80278fec r7:df991e60 r6:849bb400 r5:84b8e000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdffddfb0 to 0xdffddff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84c3ca00
INFO: task kworker/0:1:3548 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7738000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
INFO: task kworker/0:5:4128 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5     state:D stack:0     pid:4128  tgid:4128  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:e0005d84 r9:00000002 r8:60000013 r7:829171a0 r6:e0005d8c r5:83ad6c00
 r4:83ad6c00
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:83ad6c00 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e0005e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a5b00
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:83ad6c00 r7:00000000 r6:83018400 r5:00001000 r4:7f05b000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfb13000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:84915b8c r4:84860800
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:84915b8c r4:84860800
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:83ad6c00 r8:8486082c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84860800
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84860800 r8:80278fec r7:df991e60 r6:848a4100 r5:83ad6c00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0005fb0 to 0xe0005ff8)
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 r5:802800e0
 r4:84ea7700
INFO: task kworker/0:5:4128 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c78c7000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
INFO: task kworker/0:6:4132 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:6     state:D stack:0     pid:4132  tgid:4132  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:dfbedd84 r9:00000002 r8:60000113 r7:829171a0 r6:dfbedd8c r5:8397e000
 r4:8397e000
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:8397e000 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbede08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84eb9dc0
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8397e000 r7:00000000 r6:83018400 r5:00001000 r4:7f05f000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea36d000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8491578c r4:84860900
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8491578c r4:84860900
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:8397e000 r8:8486092c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84860900
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84860900 r8:80278fec r7:df991e60 r6:84860980 r5:8397e000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfbedfb0 to 0xdfbedff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84eaa900
INFO: task kworker/0:6:4132 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c78c7000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
INFO: task kworker/0:37:4261 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:37    state:D stack:0     pid:4261  tgid:4261  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:dfba9d84 r9:00000002 r8:60000013 r7:829171a0 r6:dfba9d8c r5:84ed8c00
 r4:84ed8c00
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84ed8c00 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfba9e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84c23fc0
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ed8c00 r7:00000000 r6:83018400 r5:00001000 r4:7f069000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea805000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2978c r4:84b58a00
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2978c r4:84b58a00
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ed8c00 r8:84b58a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84b58a00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84b58a00 r8:80278fec r7:e82e9e60 r6:84b58a80 r5:84ed8c00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfba9fb0 to 0xdfba9ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84ebca00
INFO: task kworker/0:37:4261 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c78c7000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
INFO: task kworker/0:38:4277 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:38    state:D stack:0     pid:4277  tgid:4277  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:dfca5d84 r9:00000002 r8:60000013 r7:829171a0 r6:dfca5d8c r5:84ee3000
 r4:84ee3000
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84ee3000 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfca5e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84c76b80
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ee3000 r7:00000000 r6:83018400 r5:00001000 r4:7f047000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfa89000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8587fb8c r4:84b58c00
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8587fb8c r4:84b58c00
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ee3000 r8:84b58c2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84b58c00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84b58c00 r8:80278fec r7:e82e9e60 r6:84864380 r5:84ee3000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfca5fb0 to 0xdfca5ff8)
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 r5:802800e0
 r4:84884680
INFO: task kworker/0:38:4277 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c78c7000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
INFO: task kworker/0:40:4285 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:40    state:D stack:0     pid:4285  tgid:4285  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:dfae5d84 r9:00000002 r8:60000013 r7:829171a0 r6:dfae5d8c r5:84edb000
 r4:84edb000
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84edb000 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfae5e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84c76140
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84edb000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfc79000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:84f2a38c r4:84b58d80
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:84f2a38c r4:84b58d80
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84edb000 r8:84b58dac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84b58d80
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84b58d80 r8:80278fec r7:dfba9e60 r6:84864680 r5:84edb000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfae5fb0 to 0xdfae5ff8)
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 r5:802800e0
 r4:84884f80
INFO: task kworker/0:40:4285 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7b6a000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
INFO: task kworker/0:41:4287 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:41    state:D stack:0     pid:4287  tgid:4287  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:dfb21d84 r9:00000002 r8:60000013 r7:829171a0 r6:dfb21d8c r5:84ee5400
 r4:84ee5400
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84ee5400 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb21e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84ca2380
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ee5400 r7:00000000 r6:83018400 r5:00001000 r4:7f061000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea43f000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8491538c r4:84b58e00
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8491538c r4:84b58e00
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ee5400 r8:84b58e2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84b58e00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84b58e00 r8:80278fec r7:dfba9e60 r6:84864f00 r5:84ee5400
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfb21fb0 to 0xdfb21ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84eaaa40
INFO: task kworker/0:41:4287 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7b6a000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
INFO: task kworker/0:42:4289 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:42    state:D stack:0     pid:4289  tgid:4289  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:dfae1d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfae1d8c r5:84ede000
 r4:84ede000
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84ede000 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfae1e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84ca27c0
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ede000 r7:00000000 r6:83018400 r5:00001000 r4:7f067000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea723000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:84914b8c r4:84b58f00
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:84914b8c r4:84b58f00
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ede000 r8:84b58f2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84b58f00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84b58f00 r8:80278fec r7:dfba9e60 r6:84b58f80 r5:84ede000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfae1fb0 to 0xdfae1ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84eb5bc0
INFO: task kworker/0:42:4289 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7b6a000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
INFO: task kworker/0:43:4290 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:43    state:D stack:0     pid:4290  tgid:4290  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:dfbb5d84 r9:00000002 r8:60000013 r7:829171a0 r6:dfbb5d8c r5:84ee6000
 r4:84ee6000
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84ee6000 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbb5e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84c5b640
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ee6000 r7:00000000 r6:83018400 r5:00001000 r4:7f06b000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea939000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8491638c r4:84c3e080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8491638c r4:84c3e080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ee6000 r8:84c3e0ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c3e080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c3e080 r8:80278fec r7:dfba9e60 r6:84864800 r5:84ee6000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfbb5fb0 to 0xdfbb5ff8)
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 r5:802800e0
 r4:84eb5340
INFO: task kworker/0:43:4290 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7b6a000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
INFO: task kworker/0:45:4295 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:45    state:D stack:0     pid:4295  tgid:4295  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:e0101d84 r9:00000002 r8:60000013 r7:829171a0 r6:e0101d8c r5:84edbc00
 r4:84edbc00
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84edbc00 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e0101e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84ca2400
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84edbc00 r7:00000000 r6:83018400 r5:00001000 r4:7f063000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea509000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8491478c r4:84c3e180
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8491478c r4:84c3e180
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84edbc00 r8:84c3e1ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c3e180
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c3e180 r8:80278fec r7:dfae1e60 r6:84c3e200 r5:84edbc00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0101fb0 to 0xe0101ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84ea5a80
INFO: task kworker/0:45:4295 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7b6a000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:46:4308 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:46    state:D stack:0     pid:4308  tgid:4308  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:e00f9d84 r9:00000002 r8:60000013 r7:829171a0 r6:e00f9d8c r5:85711800
 r4:85711800
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:85711800 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e00f9e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84866840
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:85711800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:df9b7000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8491438c r4:84c3e680
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8491438c r4:84c3e680
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:85711800 r8:84c3e6ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c3e680
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c3e680 r8:80278fec r7:dfbb1e60 r6:84c3e600 r5:85711800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe00f9fb0 to 0xe00f9ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84eb9d00
INFO: task kworker/0:46:4308 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7f72000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:47:4352 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:47    state:D stack:0     pid:4352  tgid:4352  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:e0105d84 r9:00000002 r8:60000013 r7:829171a0 r6:e0105d8c r5:84dc6000
 r4:84dc6000
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84dc6000 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e0105e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85809e40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84dc6000 r7:00000000 r6:83018400 r5:00001000 r4:7f04b000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfa9f000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8579ff8c r4:84c3e780
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8579ff8c r4:84c3e780
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84dc6000 r8:84c3e7ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c3e780
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c3e780 r8:80278fec r7:dfbb1e60 r6:84eb4000 r5:84dc6000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0105fb0 to 0xe0105ff8)
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 r5:802800e0
 r4:84ca7bc0
INFO: task kworker/0:47:4352 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7f72000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:48:4355 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:48    state:D stack:0     pid:4355  tgid:4355  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:dfbf1d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfbf1d8c r5:84dc2400
 r4:84dc2400
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84dc2400 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbf1e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84c1d340
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84dc2400 r7:00000000 r6:83018400 r5:00001000 r4:7f065000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea633000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:84decb8c r4:84c3e800
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:84decb8c r4:84c3e800
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84dc2400 r8:84c3e82c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c3e800
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c3e800 r8:80278fec r7:e00f9e60 r6:84eb4080 r5:84dc2400
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfbf1fb0 to 0xdfbf1ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84ebd580
INFO: task kworker/0:48:4355 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7f72000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:49:4357 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:49    state:D stack:0     pid:4357  tgid:4357  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:e4255d84 r9:00000002 r8:60000013 r7:829171a0 r6:e4255d8c r5:84eeec00
 r4:84eeec00
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84eeec00 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e4255e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84886140
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84eeec00 r7:00000000 r6:83018400 r5:00001000 r4:7f049000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfa25000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:84914f8c r4:84c3e900
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:84914f8c r4:84c3e900
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84eeec00 r8:84c3e92c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c3e900
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c3e900 r8:80278fec r7:e00f9e60 r6:84eb4100 r5:84eeec00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe4255fb0 to 0xe4255ff8)
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 r5:802800e0
 r4:84ebd880
INFO: task kworker/0:49:4357 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7f72000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:50:4360 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:50    state:D stack:0     pid:4360  tgid:4360  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:dfbe5d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfbe5d8c r5:85716c00
 r4:85716c00
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:85716c00 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbe5e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84b44080
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:85716c00 r7:00000000 r6:83018400 r5:00001000 r4:7f059000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea477000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:84f01f8c r4:84c3e980
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:84f01f8c r4:84c3e980
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:85716c00 r8:84c3e9ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c3e980
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c3e980 r8:80278fec r7:e00f9e60 r6:84c3ea00 r5:85716c00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfbe5fb0 to 0xdfbe5ff8)
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 r5:802800e0
 r4:84ebd380
INFO: task kworker/0:50:4360 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7f72000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:51:4366 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:51    state:D stack:0     pid:4366  tgid:4366  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a64028>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63094>] (__schedule) from [<81a64028>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:e4229d84 r9:00000002 r8:60000113 r7:829171a0 r6:e4229d8c r5:85713c00
 r4:85713c00
[<81a63ffc>] (schedule) from [<81a64410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:85713c00 r4:8291719c
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a643f8>] (schedule_preempt_disabled) from [<81a66fc0>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a66c70>] (__mutex_lock.constprop.0) from [<81a67768>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e4229e08
 r4:00000000
[<81a67754>] (__mutex_lock_slowpath) from [<81a677a8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a6776c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84feaf00
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:85713c00 r7:00000000 r6:83018400 r5:00001000 r4:7f057000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e82fb000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:84f28b8c r4:84c3eb80
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:84f28b8c r4:84c3eb80
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:85713c00 r8:84c3ebac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c3eb80
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c3eb80 r8:80278fec r7:dfbe5e60 r6:84c3ec00 r5:85713c00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe4229fb0 to 0xe4229ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84ebddc0
INFO: task kworker/0:51:4366 is blocked on a mutex likely owned by task kworker/0:52:4392.
task:kworker/0:52    state:R  running task     stack:0     pid:4392  tgid:4392  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63094>] (__schedule) from [<81a6445c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84ef4800 r8:80200c04 r7:e0051d54 r6:ffffffff r5:84ef4800
 r4:00000000
[<81a6441c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0051d20 to 0xe0051d68)
1d20: c7f72000 ebe67000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
1d40: 7f045000 ebe67000 8280c9b4 e0051d9c e0051da0 e0051d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0051dc0 r5:e0051e08
 r4:e0051dc0
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a9b40
 r4:00000000
[<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84ef4800 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e4219000
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85a2a78c r4:84c19080
[<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85a2a78c r4:84c19080
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84ef4800 r8:84c190ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84c19080
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84c19080 r8:80278fec r7:df991e60 r6:84eb4c00 r5:84ef4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0051fb0 to 0xe0051ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f34e40
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:000f0013 r5:600f0093 r4:82252320
[<80201b08>] (show_stack) from [<8021f924>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b08>] (show_stack) from [<8021f924>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120)
[<8021f8b4>] (dump_stack_lvl) from [<8021f948>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000001 r4:00000001
[<8021f930>] (dump_stack) from [<81a4ccac>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<81a4cb4c>] (nmi_cpu_backtrace) from [<81a4cdf8>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
 r7:00000001 r6:8280c690 r5:8281ae34 r4:ffffffff
[<81a4ccc8>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852)
 r9:8281ba28 r8:8280c810 r7:000286eb r6:00007bc6 r5:82abf7d4 r4:85da940c
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037f940>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline])
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037f940>] (check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline])
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037f940>] (watchdog+0x5d0/0x850 kernel/hung_task.c:495)
[<8037f370>] (watchdog) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:00000000 r8:8037f370 r7:8332a300 r6:8332a300 r5:8321e000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdf8d9fb0 to 0xdf8d9ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:832c0b00
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 2818 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
PC is at kmap_local_sched_in kernel/sched/core.c:5099 [inline]
PC is at finish_task_switch+0x8c/0x284 kernel/sched/core.c:5201
LR is at __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
LR is at _raw_spin_unlock+0x2c/0x50 kernel/locking/spinlock.c:186
pc : [<8028ff4c>]    lr : [<81a6ce10>]    psr: 20000113
sp : eae7ddd8  ip : eae7ddc8  fp : eae7de1c
r10: 00000402  r9 : 840c4800  r8 : 85d78000
r7 : 00000000  r6 : 81a63598  r5 : dddd00c0  r4 : 00000000
r3 : 840c4800  r2 : 00000001  r1 : 82252320  r0 : 00000001
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 30c5387d  Table: 8562b680  DAC: fffffffd
Call trace: 
[<8028fec0>] (finish_task_switch) from [<81a63598>] (context_switch kernel/sched/core.c:5328 [inline])
[<8028fec0>] (finish_task_switch) from [<81a63598>] (__schedule+0x504/0xf68 kernel/sched/core.c:6929)
 r10:840c4800 r9:00000000 r8:840c4800 r7:00000000 r6:840c4800 r5:dddd00c0
 r4:85d78000
[<81a63094>] (__schedule) from [<81a641c0>] (preempt_schedule_common kernel/sched/core.c:7113 [inline])
[<81a63094>] (__schedule) from [<81a641c0>] (preempt_schedule+0x4c/0xb4 kernel/sched/core.c:7137)
 r10:82959554 r9:00000000 r8:00000000 r7:80a8ed88 r6:00000001 r5:840c4800
 r4:81a6cf24
[<81a64174>] (preempt_schedule) from [<81a6cf24>] (__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline])
[<81a64174>] (preempt_schedule) from [<81a6cf24>] (_raw_spin_unlock_irqrestore+0x50/0x54 kernel/locking/spinlock.c:194)
 r7:00000117 r6:829594b8 r5:00000000 r4:00000001
[<81a6ced4>] (_raw_spin_unlock_irqrestore) from [<80a8ed88>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline])
[<81a6ced4>] (_raw_spin_unlock_irqrestore) from [<80a8ed88>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline])
[<81a6ced4>] (_raw_spin_unlock_irqrestore) from [<80a8ed88>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603)
[<80a8ed68>] (pl011_console_device_unlock) from [<802e3600>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1142)
[<802e3578>] (nbcon_emit_one) from [<802e3820>] (nbcon_kthread_func+0x1a8/0x2a4 kernel/printk/nbcon.c:1229)
 r6:8280c690 r5:840c4800 r4:829594b8
[<802e3678>] (nbcon_kthread_func) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:829594b8 r8:802e3678 r7:846d7700 r6:846d7700 r5:840c4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeae7dfb0 to 0xeae7dff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:85402a40