INFO: task kworker/1:6:4151 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6     state:D stack:0     pid:4151  tgid:4151  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:ea375d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea375d8c r5:83311800
 r4:83311800
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:83311800 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:ea375e08
 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 r5:852d3d80
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:83311800 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:e00d5000
[<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)
 r5:85845f8c r4:85834380
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:85845f8c r4:85834380
[<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 r9:83311800 r8:858343ac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:85834380
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85834380 r8:80278fec r7:dfef1e60 r6:84868000 r5:83311800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea375fb0 to 0xea375ff8)
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
 r4:8484dd80
INFO: task kworker/1:6:4151 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8c4db000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
INFO: task kworker/1:7:4155 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:7     state:D stack:0     pid:4155  tgid:4155  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:ea3f5d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea3f5d8c r5:83b42400
 r4:83b42400
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:83b42400 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:ea3f5e08
 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 r5:853df3c0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:83b42400 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:e001b000
[<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)
 r5:8584638c r4:85834480
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:8584638c r4:85834480
[<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 r9:83b42400 r8:858344ac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:85834480
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85834480 r8:80278fec r7:dfef1e60 r6:84927100 r5:83b42400
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea3f5fb0 to 0xea3f5ff8)
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
 r4:8484d100
INFO: task kworker/1:7:4155 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8c70f000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
INFO: task kworker/1:10:4167 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:10    state:D stack:0     pid:4167  tgid:4167  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:ea4cdd84 r9:00000002 r8:60000013 r7:829171a0 r6:ea4cdd8c r5:84201800
 r4:84201800
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84201800 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:ea4cde08
 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 r5:852d36c0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84201800 r7:00000000 r6:83018600 r5:00001000 r4:7f045000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfa59000
[<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)
 r5:85844f8c r4:85834800
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:85844f8c r4:85834800
[<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 r9:84201800 r8:8583482c r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:85834800
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85834800 r8:80278fec r7:ea4b1e60 r6:84927400 r5:84201800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea4cdfb0 to 0xea4cdff8)
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
 r4:853dfd00
INFO: task kworker/1:10:4167 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8c994000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
INFO: task kworker/1:133:4555 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:133   state:D stack:0     pid:4555  tgid:4555  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:ea6edd84 r9:00000002 r8:60000113 r7:829171a0 r6:ea6edd8c r5:84963000
 r4:84963000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84963000 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:ea6ede08
 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 r5:852d1140
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84963000 r7:00000000 r6:83018600 r5:00001000 r4:7f057000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfac7000
[<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)
 r5:85845b8c r4:84856000
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:85845b8c r4:84856000
[<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 r9:84963000 r8:8485602c r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:84856000
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84856000 r8:80278fec r7:ea699e60 r6:84856080 r5:84963000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea6edfb0 to 0xea6edff8)
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
 r4:848581c0
INFO: task kworker/1:133:4555 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8c994000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
INFO: task kworker/0:90:4605 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:90    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:ea4e1d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea4e1d8c r5:8496ec00
 r4:8496ec00
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:8496ec00 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:ea4e1e08
 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 r5:852d33c0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8496ec00 r7:00000000 r6:83018400 r5:00001000 r4:7f067000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea597000
[<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)
 r5:8530138c r4:84857480
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530138c r4:84857480
[<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 r9:8496ec00 r8:848574ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857480
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857480 r8:80278fec r7:ea509e60 r6:84857500 r5:8496ec00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea4e1fb0 to 0xea4e1ff8)
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
 r4:84b59280
INFO: task kworker/0:90:4605 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8cbc1000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
INFO: task kworker/0:91:4607 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:91    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:ea4e9d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea4e9d8c r5:8496e000
 r4:8496e000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:8496e000 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:ea4e9e08
 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 r5:84b59ac0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8496e000 r7:00000000 r6:83018400 r5:00001000 r4:7f05f000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea2af000
[<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)
 r5:8530038c r4:84857580
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530038c r4:84857580
[<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 r9:8496e000 r8:848575ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857580
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857580 r8:80278fec r7:ea4e1e60 r6:84857600 r5:8496e000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea4e9fb0 to 0xea4e9ff8)
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
 r4:84b59780
INFO: task kworker/0:91:4607 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8ccca000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
INFO: task kworker/0:92:4609 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:92    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:ea4e5d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea4e5d8c r5:8496bc00
 r4:8496bc00
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:8496bc00 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:ea4e5e08
 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 r5:84b595c0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8496bc00 r7:00000000 r6:83018400 r5:00001000 r4:7f061000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea319000
[<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)
 r5:85303f8c r4:84857680
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85303f8c r4:84857680
[<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 r9:8496bc00 r8:848576ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857680
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857680 r8:80278fec r7:ea4e1e60 r6:84857700 r5:8496bc00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea4e5fb0 to 0xea4e5ff8)
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
 r4:84b59a40
INFO: task kworker/0:92:4609 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8ce68000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
INFO: task kworker/0:93:4611 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:93    state:D stack:0     pid:4611  tgid:4611  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:ea4f9d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea4f9d8c r5:84958000
 r4:84958000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84958000 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:ea4f9e08
 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 r5:852c6ac0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84958000 r7:00000000 r6:83018400 r5:00001000 r4:7f063000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea3ed000
[<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)
 r5:8530238c r4:84857780
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530238c r4:84857780
[<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 r9:84958000 r8:848577ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857780
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857780 r8:80278fec r7:ea4e1e60 r6:84857880 r5:84958000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea4f9fb0 to 0xea4f9ff8)
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
 r4:84b59580
INFO: task kworker/0:93:4611 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8ce68000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
INFO: task kworker/0:94:4613 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:94    state:D stack:0     pid:4613  tgid:4613  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:ea565d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea565d8c r5:84959800
 r4:84959800
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84959800 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:ea565e08
 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 r5:84a098c0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84959800 r7:00000000 r6:83018400 r5:00001000 r4:7f065000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea4d7000
[<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)
 r5:8530078c r4:84857900
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530078c r4:84857900
[<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 r9:84959800 r8:8485792c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857900
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857900 r8:80278fec r7:ea4e1e60 r6:84857980 r5:84959800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea565fb0 to 0xea565ff8)
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
 r4:852c6d00
INFO: task kworker/0:94:4613 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8ce68000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
INFO: task kworker/0:95:4615 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:95    state:D stack:0     pid:4615  tgid:4615  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:ea571d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea571d8c r5:8495b000
 r4:8495b000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:8495b000 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:ea571e08
 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 r5:84a09c00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8495b000 r7:00000000 r6:83018400 r5:00001000 r4:7f053000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea43b000
[<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)
 r5:8530fb8c r4:84857a00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530fb8c r4:84857a00
[<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 r9:8495b000 r8:84857a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857a00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857a00 r8:80278fec r7:ea4e1e60 r6:84857a80 r5:8495b000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea571fb0 to 0xea571ff8)
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
 r4:84a09680
INFO: task kworker/0:95:4615 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8d145000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:96:4617 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:96    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:ea5d1d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea5d1d8c r5:8495c800
 r4:8495c800
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:8495c800 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:ea5d1e08
 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 r5:852d3a80
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8495c800 r7:00000000 r6:83018400 r5:00001000 r4:7f06b000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea5fd000
[<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)
 r5:8530c38c r4:84857b80
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530c38c r4:84857b80
[<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 r9:8495c800 r8:84857bac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857b80
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857b80 r8:80278fec r7:ea571e60 r6:84857c00 r5:8495c800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea5d1fb0 to 0xea5d1ff8)
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
 r4:852d31c0
INFO: task kworker/0:96:4617 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8d145000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:97:4619 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:97    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:ea601d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea601d8c r5:8495d400
 r4:8495d400
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:8495d400 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:ea601e08
 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 r5:852d3f00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8495d400 r7:00000000 r6:83018400 r5:00001000 r4:7f047000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff31000
[<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)
 r5:8530d78c r4:84857d00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530d78c r4:84857d00
[<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 r9:8495d400 r8:84857d2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857d00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857d00 r8:80278fec r7:ea571e60 r6:84857d80 r5:8495d400
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea601fb0 to 0xea601ff8)
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
 r4:852d3bc0
INFO: task kworker/0:97:4619 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8d47f000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:98:4621 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:98    state:D stack:0     pid:4621  tgid:4621  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:dff35d84 r9:00000002 r8:60000013 r7:829171a0 r6:dff35d8c r5:8495e000
 r4:8495e000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:8495e000 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:dff35e08
 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 r5:84b59f40
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8495e000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:e81a3000
[<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)
 r5:8530e38c r4:84857e00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530e38c r4:84857e00
[<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 r9:8495e000 r8:84857e2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857e00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857e00 r8:80278fec r7:ea571e60 r6:84857e80 r5:8495e000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdff35fb0 to 0xdff35ff8)
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
 r4:852d3100
INFO: task kworker/0:98:4621 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8d54d000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:99:4625 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:99    state:D stack:0     pid:4625  tgid:4625  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:ea431d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea431d8c r5:8495bc00
 r4:8495bc00
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:8495bc00 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:ea431e08
 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 r5:84b59e00
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8495bc00 r7:00000000 r6:83018400 r5:00001000 r4:7f04f000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea317000
[<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)
 r5:8530d38c r4:84857f00
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530d38c r4:84857f00
[<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 r9:8495bc00 r8:84857f2c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857f00
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857f00 r8:80278fec r7:ea571e60 r6:84857f80 r5:8495bc00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea431fb0 to 0xea431ff8)
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
 r4:84b59ec0
INFO: task kworker/0:99:4625 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8d6c8000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:100:4627 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:100   state:D stack:0     pid:4627  tgid:4627  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:ea459d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea459d8c r5:8495ec00
 r4:8495ec00
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:8495ec00 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:ea459e08
 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 r5:84858140
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8495ec00 r7:00000000 r6:83018400 r5:00001000 r4:7f051000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea397000
[<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)
 r5:8530e78c r4:852d6000
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530e78c r4:852d6000
[<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 r9:8495ec00 r8:852d602c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:852d6000
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:852d6000 r8:80278fec r7:ea571e60 r6:852d6080 r5:8495ec00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea459fb0 to 0xea459ff8)
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
 r4:84b59640
INFO: task kworker/0:100:4627 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8d7c0000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:102:4631 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:102   state:D stack:0     pid:4631  tgid:4631  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:ea461d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea461d8c r5:85200000
 r4:85200000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:85200000 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:ea461e08
 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 r5:84851140
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:85200000 r7:00000000 r6:83018400 r5:00001000 r4:7f055000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea50b000
[<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)
 r5:8530f78c r4:852d6200
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530f78c r4:852d6200
[<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 r9:85200000 r8:852d622c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:852d6200
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:852d6200 r8:80278fec r7:ea545e60 r6:852d6300 r5:85200000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea461fb0 to 0xea461ff8)
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
 r4:84a09ec0
INFO: task kworker/0:102:4631 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8da9f000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:103:4633 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:103   state:D stack:0     pid:4633  tgid:4633  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:ea495d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea495d8c r5:85200c00
 r4:85200c00
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:85200c00 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:ea495e08
 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 r5:8583b800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:85200c00 r7:00000000 r6:83018400 r5:00001000 r4:7f069000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea633000
[<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)
 r5:8530cb8c r4:852d6480
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530cb8c r4:852d6480
[<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 r9:85200c00 r8:852d64ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:852d6480
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:852d6480 r8:80278fec r7:ea545e60 r6:852d6500 r5:85200c00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea495fb0 to 0xea495ff8)
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
 r4:852d1140
INFO: task kworker/0:103:4633 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8dc81000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:104:4635 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:104   state:D stack:0     pid:4635  tgid:4635  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:ea649d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea649d8c r5:85202400
 r4:85202400
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:85202400 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:ea649e08
 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 r5:8583bb40
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:85202400 r7:00000000 r6:83018400 r5:00001000 r4:7f06d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea673000
[<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)
 r5:8510578c r4:852d6400
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8510578c r4:852d6400
[<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 r9:85202400 r8:852d642c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:852d6400
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:852d6400 r8:80278fec r7:ea545e60 r6:852d6380 r5:85202400
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea649fb0 to 0xea649ff8)
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
 r4:8583b2c0
INFO: task kworker/0:104:4635 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8decc000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:105:4637 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:105   state:D stack:0     pid:4637  tgid:4637  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:ea645d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea645d8c r5:85203c00
 r4:85203c00
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:85203c00 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:ea645e08
 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 r5:8583b440
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:85203c00 r7:00000000 r6:83018400 r5:00001000 r4:7f06f000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea6a7000
[<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)
 r5:8530338c r4:852d6580
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:8530338c r4:852d6580
[<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 r9:85203c00 r8:852d65ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:852d6580
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:852d6580 r8:80278fec r7:ea545e60 r6:852d6600 r5:85203c00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea645fb0 to 0xea645ff8)
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
 r4:8583b300
INFO: task kworker/0:105:4637 is blocked on a mutex likely owned by task kworker/0:87:4598.
task:kworker/0:87    state:R  running task     stack:0     pid:4598  tgid:4598  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 r9:84974800 r8:80200c04 r7:ea509d54 r6:ffffffff r5:84974800
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea509d20 to 0xea509d68)
9d20: 8dfc1000 ebd73000 00000001 80239bf8 7f045000 00000001 82acb1c4 82aca5a0
9d40: 7f045000 ebd73000 8280c9b4 ea509d9c ea509da0 ea509d70 80230af0 80239c10
9d60: 80000113 ffffffff
 r5:80000113 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:ea509dc0 r5:ea509e08
 r4:ea509dc0
[<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 r5:84b59800
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84974800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dff1d000
[<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)
 r5:85302b8c r4:84857300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:85302b8c r4:84857300
[<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 r9:84974800 r8:8485732c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84857300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84857300 r8:80278fec r7:ea409e60 r6:84856580 r5:84974800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea509fb0 to 0xea509ff8)
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
 r4:84b5ac00
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 r7:00022990 r6:00007c13 r5:82abf7d4 r4:85c97f0c
[<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 r7:83844000 r6:83844000 r5:832e2400
 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
 r4:833c8940
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2819 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 : eae51eb0  ip : eae51ec0  fp : eae51ebc
r10: 82959554  r9 : 00000001  r8 : 00000000
r7 : 00000117  r6 : 829594b8  r5 : 00000000  r4 : 00000001
r3 : 000009c4  r2 : 00000000  r1 : 60000013  r0 : 83f63c40
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 30c5387d  Table: 846b46c0  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 r5:84b8b000 r4:829594b8
[<802e37e0>] (nbcon_kthread_func) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:829594b8 r8:802e37e0 r7:846e9200 r6:846e9200 r5:84b8b000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeae51fb0 to 0xeae51ff8)
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
 r4:84c27f80