INFO: task kworker/1:137:4584 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:137   state:D stack:0     pid:4584  tgid:4584  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea3bdd84 r9:00000002 r8:60000013 r7:829171a0 r6:ea3bdd8c r5:855f0000
 r4:855f0000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:855f0000 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea3bde08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859dd900
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:855f0000 r7:00000000 r6:83018600 r5:00001000 r4:7f077000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea6a3000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85981f8c r4:8599f480
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:85981f8c r4:8599f480
[<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 r9:855f0000 r8:8599f4ac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:8599f480
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599f480 r8:80278fec r7:ea47de60 r6:8599c800 r5:855f0000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea3bdfb0 to 0xea3bdff8)
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
 r4:859ddcc0
INFO: task kworker/1:137:4584 is blocked on a mutex likely owned by task kworker/0:81:4602.
task:kworker/0:81    state:R  running task     stack:0     pid:4602  tgid:4602  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:849ec800 r8:80200c04 r7:ea641d54 r6:ffffffff r5:849ec800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea641d20 to 0xea641d68)
1d20: 8b5c3000 ebecd000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
1d40: 7f047000 ebecd000 8280c9b4 ea641d9c ea641da0 ea641d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea641dc0 r5:ea641e08
 r4:ea641dc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592da00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ec800 r7:00000000 r6:83018400 r5:00001000 r4:7f073000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea643000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c1ab8c r4:8599ce00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c1ab8c r4:8599ce00
[<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 r9:849ec800 r8:8599ce2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599ce00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599ce00 r8:80278fec r7:ea621e60 r6:8599ce80 r5:849ec800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea641fb0 to 0xea641ff8)
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
 r4:8595c7c0
INFO: task kworker/1:139:4594 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:139   state:D stack:0     pid:4594  tgid:4594  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea5b1d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea5b1d8c r5:849e8000
 r4:849e8000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:849e8000 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea5b1e08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858ca740
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:849e8000 r7:00000000 r6:83018600 r5:00001000 r4:7f07b000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea6f9000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85973b8c r4:8599f580
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:85973b8c r4:8599f580
[<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 r9:849e8000 r8:8599f5ac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:8599f580
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599f580 r8:80278fec r7:ea3bde60 r6:8599ca80 r5:849e8000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea5b1fb0 to 0xea5b1ff8)
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
 r4:859dd7c0
INFO: task kworker/1:139:4594 is blocked on a mutex likely owned by task kworker/0:81:4602.
task:kworker/0:81    state:R  running task     stack:0     pid:4602  tgid:4602  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:849ec800 r8:80200c04 r7:ea641d54 r6:ffffffff r5:849ec800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea641d20 to 0xea641d68)
1d20: 8c913000 ebecd000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
1d40: 7f047000 ebecd000 8280c9b4 ea641d9c ea641da0 ea641d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea641dc0 r5:ea641e08
 r4:ea641dc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592da00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ec800 r7:00000000 r6:83018400 r5:00001000 r4:7f073000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea643000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c1ab8c r4:8599ce00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c1ab8c r4:8599ce00
[<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 r9:849ec800 r8:8599ce2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599ce00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599ce00 r8:80278fec r7:ea621e60 r6:8599ce80 r5:849ec800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea641fb0 to 0xea641ff8)
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
 r4:8595c7c0
INFO: task kworker/0:80:4600 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:80    state:D stack:0     pid:4600  tgid:4600  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea621d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea621d8c r5:849ebc00
 r4:849ebc00
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:849ebc00 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea621e08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859d9fc0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ebc00 r7:00000000 r6:83018400 r5:00001000 r4:7f07d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea735000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c18b8c r4:8599cd00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c18b8c r4:8599cd00
[<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 r9:849ebc00 r8:8599cd2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599cd00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599cd00 r8:80278fec r7:ea605e60 r6:8599cd80 r5:849ebc00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea621fb0 to 0xea621ff8)
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
 r4:8595ec00
INFO: task kworker/0:80:4600 is blocked on a mutex likely owned by task kworker/0:81:4602.
task:kworker/0:81    state:R  running task     stack:0     pid:4602  tgid:4602  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:849ec800 r8:80200c04 r7:ea641d54 r6:ffffffff r5:849ec800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea641d20 to 0xea641d68)
1d20: 8c913000 ebecd000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
1d40: 7f047000 ebecd000 8280c9b4 ea641d9c ea641da0 ea641d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea641dc0 r5:ea641e08
 r4:ea641dc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592da00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ec800 r7:00000000 r6:83018400 r5:00001000 r4:7f073000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea643000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c1ab8c r4:8599ce00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c1ab8c r4:8599ce00
[<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 r9:849ec800 r8:8599ce2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599ce00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599ce00 r8:80278fec r7:ea621e60 r6:8599ce80 r5:849ec800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea641fb0 to 0xea641ff8)
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
 r4:8595c7c0
INFO: task kworker/1:140:4605 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:140   state:D stack:0     pid:4605  tgid:4605  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea671d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea671d8c r5:849ed400
 r4:849ed400
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:849ed400 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea671e08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859dd9c0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:849ed400 r7:00000000 r6:83018600 r5:00001000 r4:7f075000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea669000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85983f8c r4:8599f600
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:85983f8c r4:8599f600
[<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 r9:849ed400 r8:8599f62c r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:8599f600
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599f600 r8:80278fec r7:ea3bde60 r6:8599c680 r5:849ed400
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea671fb0 to 0xea671ff8)
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
 r4:859dd700
INFO: task kworker/1:140:4605 is blocked on a mutex likely owned by task kworker/0:81:4602.
task:kworker/0:81    state:R  running task     stack:0     pid:4602  tgid:4602  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:849ec800 r8:80200c04 r7:ea641d54 r6:ffffffff r5:849ec800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea641d20 to 0xea641d68)
1d20: 8c913000 ebecd000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
1d40: 7f047000 ebecd000 8280c9b4 ea641d9c ea641da0 ea641d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea641dc0 r5:ea641e08
 r4:ea641dc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592da00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ec800 r7:00000000 r6:83018400 r5:00001000 r4:7f073000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea643000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c1ab8c r4:8599ce00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c1ab8c r4:8599ce00
[<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 r9:849ec800 r8:8599ce2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599ce00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599ce00 r8:80278fec r7:ea621e60 r6:8599ce80 r5:849ec800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea641fb0 to 0xea641ff8)
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
 r4:8595c7c0
INFO: task kworker/1:141:4607 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:141   state:D stack:0     pid:4607  tgid:4607  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea6b1d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea6b1d8c r5:849f0000
 r4:849f0000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:849f0000 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6b1e08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8595c240
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:849f0000 r7:00000000 r6:83018600 r5:00001000 r4:7f079000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea6c9000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8598278c r4:8599f680
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:8598278c r4:8599f680
[<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 r9:849f0000 r8:8599f6ac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:8599f680
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599f680 r8:80278fec r7:ea5b1e60 r6:85952080 r5:849f0000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea6b1fb0 to 0xea6b1ff8)
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
 r4:859ddf80
INFO: task kworker/1:141:4607 is blocked on a mutex likely owned by task kworker/0:81:4602.
task:kworker/0:81    state:R  running task     stack:0     pid:4602  tgid:4602  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:849ec800 r8:80200c04 r7:ea641d54 r6:ffffffff r5:849ec800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea641d20 to 0xea641d68)
1d20: 8c913000 ebecd000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
1d40: 7f047000 ebecd000 8280c9b4 ea641d9c ea641da0 ea641d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea641dc0 r5:ea641e08
 r4:ea641dc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592da00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ec800 r7:00000000 r6:83018400 r5:00001000 r4:7f073000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea643000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c1ab8c r4:8599ce00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c1ab8c r4:8599ce00
[<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 r9:849ec800 r8:8599ce2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599ce00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599ce00 r8:80278fec r7:ea621e60 r6:8599ce80 r5:849ec800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea641fb0 to 0xea641ff8)
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
 r4:8595c7c0
INFO: task kworker/1:142:4609 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:142   state:D stack:0     pid:4609  tgid:4609  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea3a9d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea3a9d8c r5:859b3c00
 r4:859b3c00
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:859b3c00 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea3a9e08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858caf00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:859b3c00 r7:00000000 r6:83018600 r5:00001000 r4:7f049000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dffc7000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8598878c r4:8599f700
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:8598878c r4:8599f700
[<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 r9:859b3c00 r8:8599f72c r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:8599f700
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599f700 r8:80278fec r7:ea5b1e60 r6:8599f780 r5:859b3c00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea3a9fb0 to 0xea3a9ff8)
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
 r4:8595c600
INFO: task kworker/1:142:4609 is blocked on a mutex likely owned by task kworker/0:81:4602.
task:kworker/0:81    state:R  running task     stack:0     pid:4602  tgid:4602  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:849ec800 r8:80200c04 r7:ea641d54 r6:ffffffff r5:849ec800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea641d20 to 0xea641d68)
1d20: 8cbb7000 ebecd000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
1d40: 7f047000 ebecd000 8280c9b4 ea641d9c ea641da0 ea641d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea641dc0 r5:ea641e08
 r4:ea641dc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592da00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ec800 r7:00000000 r6:83018400 r5:00001000 r4:7f073000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea643000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c1ab8c r4:8599ce00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c1ab8c r4:8599ce00
[<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 r9:849ec800 r8:8599ce2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599ce00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599ce00 r8:80278fec r7:ea621e60 r6:8599ce80 r5:849ec800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea641fb0 to 0xea641ff8)
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
 r4:8595c7c0
INFO: task kworker/1:143:4610 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:143   state:D stack:0     pid:4610  tgid:4610  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea3cdd84 r9:00000002 r8:60000113 r7:829171a0 r6:ea3cdd8c r5:859b3000
 r4:859b3000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:859b3000 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea3cde08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858cac00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:859b3000 r7:00000000 r6:83018600 r5:00001000 r4:7f047000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff3b000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8597338c r4:8599f800
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:8597338c r4:8599f800
[<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 r9:859b3000 r8:8599f82c r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:8599f800
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599f800 r8:80278fec r7:ea3a9e60 r6:8599f880 r5:859b3000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea3cdfb0 to 0xea3cdff8)
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
 r4:858ca000
INFO: task kworker/1:143:4610 is blocked on a mutex likely owned by task kworker/0:81:4602.
task:kworker/0:81    state:R  running task     stack:0     pid:4602  tgid:4602  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:849ec800 r8:80200c04 r7:ea641d54 r6:ffffffff r5:849ec800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea641d20 to 0xea641d68)
1d20: 8cf21000 ebecd000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
1d40: 7f047000 ebecd000 8280c9b4 ea641d9c ea641da0 ea641d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea641dc0 r5:ea641e08
 r4:ea641dc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592da00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ec800 r7:00000000 r6:83018400 r5:00001000 r4:7f073000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea643000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c1ab8c r4:8599ce00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c1ab8c r4:8599ce00
[<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 r9:849ec800 r8:8599ce2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599ce00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599ce00 r8:80278fec r7:ea621e60 r6:8599ce80 r5:849ec800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea641fb0 to 0xea641ff8)
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
 r4:8595c7c0
INFO: task kworker/1:144:4614 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:144   state:D stack:0     pid:4614  tgid:4614  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea745d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea745d8c r5:859b4800
 r4:859b4800
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:859b4800 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea745e08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858ca2c0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:859b4800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e0027000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85988b8c r4:8599fa00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:85988b8c r4:8599fa00
[<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 r9:859b4800 r8:8599fa2c r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:8599fa00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599fa00 r8:80278fec r7:ea3a9e60 r6:8599fa80 r5:859b4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea745fb0 to 0xea745ff8)
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
 r4:858ca580
INFO: task kworker/1:144:4614 is blocked on a mutex likely owned by task kworker/0:81:4602.
task:kworker/0:81    state:R  running task     stack:0     pid:4602  tgid:4602  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:849ec800 r8:80200c04 r7:ea641d54 r6:ffffffff r5:849ec800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea641d20 to 0xea641d68)
1d20: 8cf58000 ebecd000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
1d40: 7f047000 ebecd000 8280c9b4 ea641d9c ea641da0 ea641d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea641dc0 r5:ea641e08
 r4:ea641dc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592da00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ec800 r7:00000000 r6:83018400 r5:00001000 r4:7f073000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea643000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c1ab8c r4:8599ce00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c1ab8c r4:8599ce00
[<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 r9:849ec800 r8:8599ce2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599ce00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599ce00 r8:80278fec r7:ea621e60 r6:8599ce80 r5:849ec800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea641fb0 to 0xea641ff8)
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
 r4:8595c7c0
INFO: task kworker/1:145:4617 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:145   state:D stack:0     pid:4617  tgid:4617  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea761d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea761d8c r5:859b6000
 r4:859b6000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:859b6000 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea761e08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858cde40
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:859b6000 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e818d000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85989f8c r4:8599fb80
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:85989f8c r4:8599fb80
[<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 r9:859b6000 r8:8599fbac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:8599fb80
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599fb80 r8:80278fec r7:ea745e60 r6:8599fc00 r5:859b6000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea761fb0 to 0xea761ff8)
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
 r4:858cad80
INFO: task kworker/1:145:4617 is blocked on a mutex likely owned by task kworker/0:81:4602.
task:kworker/0:81    state:R  running task     stack:0     pid:4602  tgid:4602  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:849ec800 r8:80200c04 r7:ea641d54 r6:ffffffff r5:849ec800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea641d20 to 0xea641d68)
1d20: 8cf58000 ebecd000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
1d40: 7f047000 ebecd000 8280c9b4 ea641d9c ea641da0 ea641d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea641dc0 r5:ea641e08
 r4:ea641dc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592da00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ec800 r7:00000000 r6:83018400 r5:00001000 r4:7f073000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea643000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c1ab8c r4:8599ce00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c1ab8c r4:8599ce00
[<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 r9:849ec800 r8:8599ce2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599ce00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599ce00 r8:80278fec r7:ea621e60 r6:8599ce80 r5:849ec800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea641fb0 to 0xea641ff8)
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
 r4:8595c7c0
INFO: task kworker/1:146:4619 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:146   state:D stack:0     pid:4619  tgid:4619  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea40dd84 r9:00000002 r8:60000113 r7:829171a0 r6:ea40dd8c r5:859b6c00
 r4:859b6c00
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:859b6c00 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea40de08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8595bbc0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:859b6c00 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e00cb000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85989b8c r4:8599fc80
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:85989b8c r4:8599fc80
[<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 r9:859b6c00 r8:8599fcac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:8599fc80
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599fc80 r8:80278fec r7:ea761e60 r6:8599fd00 r5:859b6c00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea40dfb0 to 0xea40dff8)
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
 r4:858caec0
INFO: task kworker/1:146:4619 is blocked on a mutex likely owned by task kworker/0:81:4602.
task:kworker/0:81    state:R  running task     stack:0     pid:4602  tgid:4602  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:849ec800 r8:80200c04 r7:ea641d54 r6:ffffffff r5:849ec800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea641d20 to 0xea641d68)
1d20: 8d34d000 ebecd000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
1d40: 7f047000 ebecd000 8280c9b4 ea641d9c ea641da0 ea641d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea641dc0 r5:ea641e08
 r4:ea641dc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592da00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ec800 r7:00000000 r6:83018400 r5:00001000 r4:7f073000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea643000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c1ab8c r4:8599ce00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c1ab8c r4:8599ce00
[<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 r9:849ec800 r8:8599ce2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599ce00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599ce00 r8:80278fec r7:ea621e60 r6:8599ce80 r5:849ec800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea641fb0 to 0xea641ff8)
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
 r4:8595c7c0
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/1:148:4623 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:148   state:D stack:0     pid:4623  tgid:4623  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea769d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea769d8c r5:859b0c00
 r4:859b0c00
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:859b0c00 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea769e08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592d980
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:859b0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f051000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea243000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:8598b38c r4:8599fe80
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:8598b38c r4:8599fe80
[<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 r9:859b0c00 r8:8599feac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:8599fe80
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599fe80 r8:80278fec r7:ea765e60 r6:8599ff00 r5:859b0c00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea769fb0 to 0xea769ff8)
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
 r4:858ca5c0
INFO: task kworker/1:148:4623 is blocked on a mutex likely owned by task kworker/0:81:4602.
task:kworker/0:81    state:R  running task     stack:0     pid:4602  tgid:4602  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:849ec800 r8:80200c04 r7:ea641d54 r6:ffffffff r5:849ec800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea641d20 to 0xea641d68)
1d20: 8d655000 ebecd000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
1d40: 7f047000 ebecd000 8280c9b4 ea641d9c ea641da0 ea641d70 80230af0 80239c10
1d60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea641dc0 r5:ea641e08
 r4:ea641dc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8592da00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849ec800 r7:00000000 r6:83018400 r5:00001000 r4:7f073000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea643000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:85c1ab8c r4:8599ce00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85c1ab8c r4:8599ce00
[<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 r9:849ec800 r8:8599ce2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:8599ce00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:8599ce00 r8:80278fec r7:ea621e60 r6:8599ce80 r5:849ec800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea641fb0 to 0xea641ff8)
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
 r4:8595c7c0
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
NMI backtrace for cpu 0
CPU: 0 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 r6:000e0013 r5:600e0093 r4:82252544
[<80201b08>] (show_stack) from [<8021f8b0>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b08>] (show_stack) from [<8021f8b0>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120)
[<8021f840>] (dump_stack_lvl) from [<8021f8d4>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:00000001
[<8021f8bc>] (dump_stack) from [<81a4d22c>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<81a4d0cc>] (nmi_cpu_backtrace) from [<81a4d378>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
 r7:00000000 r6:8280c690 r5:8281ae34 r4:ffffffff
[<81a4d248>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852)
 r9:8281ba28 r8:8280c810 r7:00020dea r6:00007bd6 r5:82abf7d4 r4:86048e0c
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fab0>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline])
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fab0>] (check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline])
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fab0>] (watchdog+0x5d0/0x850 kernel/hung_task.c:495)
[<8037f4e0>] (watchdog) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:00000000 r8:8037f4e0 r7:832a1a80 r6:832a1a80 r5:832f0c00
 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
 r4:8333d580
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2818 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194
LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]
LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603
pc : [<81a6d47c>]    lr : [<80a8f070>]    psr: 60000013
sp : eae65eb0  ip : eae65ec0  fp : eae65ebc
r10: 82959554  r9 : 00000001  r8 : 00000000
r7 : 00000117  r6 : 829594b8  r5 : 00000000  r4 : 00000001
r3 : 00000837  r2 : 00000000  r1 : 60000013  r0 : 840bc840
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 30c5387d  Table: 8550c900  DAC: 00000000
Call trace: 
[<81a6d454>] (_raw_spin_unlock_irqrestore) from [<80a8f070>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline])
[<81a6d454>] (_raw_spin_unlock_irqrestore) from [<80a8f070>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline])
[<81a6d454>] (_raw_spin_unlock_irqrestore) from [<80a8f070>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603)
[<80a8f050>] (pl011_console_device_unlock) from [<802e3768>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1142)
[<802e36e0>] (nbcon_emit_one) from [<802e3988>] (nbcon_kthread_func+0x1a8/0x2a4 kernel/printk/nbcon.c:1229)
 r6:8280c690 r5:841f6c00 r4:829594b8
[<802e37e0>] (nbcon_kthread_func) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:829594b8 r8:802e37e0 r7:84801180 r6:84801180 r5:841f6c00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeae65fb0 to 0xeae65ff8)
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
 r4:8473aa00