INFO: task kworker/1:144:8288 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:144   state:D stack:0     pid:8288  tgid:8288  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred

Call trace: 
[<81ab22ec>] (__schedule) from [<81ab3598>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab22ec>] (__schedule) from [<81ab3598>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:ea959d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea959d8c r5:858ba400
 r4:858ba400
[<81ab356c>] (schedule) from [<81ab3720>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:858ba400 r4:829174e4
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab674c>] (__mutex_lock.constprop.0) from [<81ab77ac>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea959e08
 r4:00000000
[<81ab7798>] (__mutex_lock_slowpath) from [<81ab77ec>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab77b0>] (mutex_lock) from [<804f4400>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cae900
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:858ba400 r7:00000000 r6:83018600 r5:00001000 r4:7f28e000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfae1000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85acf394 r4:83f9b100
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85acf394 r4:83f9b100
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:858ba400 r8:83f9b12c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:83f9b100
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:83f9b100 r8:802762fc r7:ea93de60 r6:83f9b080 r5:858ba400
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea959fb0 to 0xea959ff8)
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 r5:8027f5d0
 r4:850b8100
INFO: task kworker/1:144:8288 is blocked on a mutex likely owned by task kworker/1:146:8299.
task:kworker/1:146   state:R  running task     stack:0     pid:8299  tgid:8299  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab39cc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:84df8c00 r8:80200c04 r7:dfd49d54 r6:ffffffff r5:84df8c00
 r4:00000000
[<81ab398c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfd49d20 to 0xdfd49d68)
9d20: e5635000 ebec7000 00000001 80239018 7f23e000 00000001 82ace204 82acd5e0
9d40: 7f23e000 ebec7000 8280ca38 dfd49d9c dfd49da0 dfd49d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f41c4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3f40>] (__purge_vmap_area_lazy) from [<804f457c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfd49dc0 r5:dfd49e08
 r4:dfd49dc0
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8670e940
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84df8c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2e2000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e84e1000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8517c394 r4:85bcd700
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8517c394 r4:85bcd700
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84df8c00 r8:85bcd72c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcd700
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcd700 r8:802762fc r7:ea959e60 r6:85bcd280 r5:84df8c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfd49fb0 to 0xdfd49ff8)
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 r5:8027f5d0
 r4:84f0e240
INFO: task kworker/1:145:8295 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:145   state:D stack:0     pid:8295  tgid:8295  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab3598>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab22ec>] (__schedule) from [<81ab3598>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:dfce1d84 r9:829174e8 r8:600f0113 r7:829174e8 r6:dfce1d8c r5:85113000
 r4:85113000
[<81ab356c>] (schedule) from [<81ab3720>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:85113000 r4:829174e4
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab674c>] (__mutex_lock.constprop.0) from [<81ab77ac>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfce1e08
 r4:00000000
[<81ab7798>] (__mutex_lock_slowpath) from [<81ab77ec>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab77b0>] (mutex_lock) from [<804f4400>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8681a7c0
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85113000 r7:00000000 r6:83018600 r5:00001000 r4:7f2f2000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea65f000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86b61b94 r4:85ba0c00
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86b61b94 r4:85ba0c00
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:85113000 r8:85ba0c2c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85ba0c00
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85ba0c00 r8:802762fc r7:ea959e60 r6:83f9b000 r5:85113000
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfce1fb0 to 0xdfce1ff8)
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 r5:8027f5d0
 r4:84f0ef00
INFO: task kworker/1:145:8295 is blocked on a mutex likely owned by task kworker/1:146:8299.
task:kworker/1:146   state:R  running task     stack:0     pid:8299  tgid:8299  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab39cc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:84df8c00 r8:80200c04 r7:dfd49d54 r6:ffffffff r5:84df8c00
 r4:00000000
[<81ab398c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfd49d20 to 0xdfd49d68)
9d20: e5a3d000 ebec7000 00000001 80239018 7f23e000 00000001 82ace204 82acd5e0
9d40: 7f23e000 ebec7000 8280ca38 dfd49d9c dfd49da0 dfd49d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f41c4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3f40>] (__purge_vmap_area_lazy) from [<804f457c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfd49dc0 r5:dfd49e08
 r4:dfd49dc0
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8670e940
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84df8c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2e2000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e84e1000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8517c394 r4:85bcd700
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8517c394 r4:85bcd700
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84df8c00 r8:85bcd72c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcd700
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcd700 r8:802762fc r7:ea959e60 r6:85bcd280 r5:84df8c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfd49fb0 to 0xdfd49ff8)
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 r5:8027f5d0
 r4:84f0e240
INFO: task kworker/1:148:8311 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:148   state:D stack:0     pid:8311  tgid:8311  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab3598>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab22ec>] (__schedule) from [<81ab3598>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:dfd7dd84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfd7dd8c r5:84dfbc00
 r4:84dfbc00
[<81ab356c>] (schedule) from [<81ab3720>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:84dfbc00 r4:829174e4
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab674c>] (__mutex_lock.constprop.0) from [<81ab77ac>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfd7de08
 r4:00000000
[<81ab7798>] (__mutex_lock_slowpath) from [<81ab77ec>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab77b0>] (mutex_lock) from [<804f4400>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85971a00
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84dfbc00 r7:00000000 r6:83018600 r5:00001000 r4:7f28c000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfacd000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85accf94 r4:85bcd800
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85accf94 r4:85bcd800
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84dfbc00 r8:85bcd82c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcd800
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcd800 r8:802762fc r7:ea959e60 r6:85bcdc00 r5:84dfbc00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfd7dfb0 to 0xdfd7dff8)
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 r5:8027f5d0
 r4:84f0e040
INFO: task kworker/1:148:8311 is blocked on a mutex likely owned by task kworker/1:146:8299.
task:kworker/1:146   state:R  running task     stack:0     pid:8299  tgid:8299  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab39cc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:84df8c00 r8:80200c04 r7:dfd49d54 r6:ffffffff r5:84df8c00
 r4:00000000
[<81ab398c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfd49d20 to 0xdfd49d68)
9d20: e5e0d000 ebec7000 00000001 80239018 7f23e000 00000001 82ace204 82acd5e0
9d40: 7f23e000 ebec7000 8280ca38 dfd49d9c dfd49da0 dfd49d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f41c4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3f40>] (__purge_vmap_area_lazy) from [<804f457c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfd49dc0 r5:dfd49e08
 r4:dfd49dc0
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8670e940
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84df8c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2e2000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e84e1000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8517c394 r4:85bcd700
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8517c394 r4:85bcd700
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84df8c00 r8:85bcd72c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcd700
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcd700 r8:802762fc r7:ea959e60 r6:85bcd280 r5:84df8c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfd49fb0 to 0xdfd49ff8)
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 r5:8027f5d0
 r4:84f0e240
INFO: task kworker/1:149:8312 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:149   state:D stack:0     pid:8312  tgid:8312  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab3598>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab22ec>] (__schedule) from [<81ab3598>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:dfd05d84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfd05d8c r5:84dfc800
 r4:84dfc800
[<81ab356c>] (schedule) from [<81ab3720>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:84dfc800 r4:829174e4
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab674c>] (__mutex_lock.constprop.0) from [<81ab77ac>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfd05e08
 r4:00000000
[<81ab7798>] (__mutex_lock_slowpath) from [<81ab77ec>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab77b0>] (mutex_lock) from [<804f4400>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85971900
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84dfc800 r7:00000000 r6:83018600 r5:00001000 r4:7f2e6000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea5a4000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85acd794 r4:85bcd080
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85acd794 r4:85bcd080
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84dfc800 r8:85bcd0ac r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcd080
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcd080 r8:802762fc r7:ea959e60 r6:85bcd380 r5:84dfc800
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfd05fb0 to 0xdfd05ff8)
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 r5:8027f5d0
 r4:84f0e040
INFO: task kworker/1:149:8312 is blocked on a mutex likely owned by task kworker/1:146:8299.
task:kworker/1:146   state:R  running task     stack:0     pid:8299  tgid:8299  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab39cc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:84df8c00 r8:80200c04 r7:dfd49d54 r6:ffffffff r5:84df8c00
 r4:00000000
[<81ab398c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfd49d20 to 0xdfd49d68)
9d20: e5e0d000 ebec7000 00000001 80239018 7f23e000 00000001 82ace204 82acd5e0
9d40: 7f23e000 ebec7000 8280ca38 dfd49d9c dfd49da0 dfd49d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f41c4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3f40>] (__purge_vmap_area_lazy) from [<804f457c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfd49dc0 r5:dfd49e08
 r4:dfd49dc0
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8670e940
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84df8c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2e2000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e84e1000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8517c394 r4:85bcd700
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8517c394 r4:85bcd700
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84df8c00 r8:85bcd72c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcd700
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcd700 r8:802762fc r7:ea959e60 r6:85bcd280 r5:84df8c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfd49fb0 to 0xdfd49ff8)
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 r5:8027f5d0
 r4:84f0e240
INFO: task kworker/1:151:8316 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:151   state:D stack:0     pid:8316  tgid:8316  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab3598>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab22ec>] (__schedule) from [<81ab3598>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:dfcf1d84 r9:829174e8 r8:600c0113 r7:829174e8 r6:dfcf1d8c r5:84dfa400
 r4:84dfa400
[<81ab356c>] (schedule) from [<81ab3720>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:84dfa400 r4:829174e4
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab674c>] (__mutex_lock.constprop.0) from [<81ab77ac>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfcf1e08
 r4:00000000
[<81ab7798>] (__mutex_lock_slowpath) from [<81ab77ec>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab77b0>] (mutex_lock) from [<804f4400>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86059c80
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84dfa400 r7:00000000 r6:83018600 r5:00001000 r4:7f2e4000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea59f000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:87333f94 r4:85bcdd80
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:87333f94 r4:85bcdd80
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84dfa400 r8:85bcddac r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcdd80
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcdd80 r8:802762fc r7:dfde5e60 r6:85bcdb00 r5:84dfa400
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfcf1fb0 to 0xdfcf1ff8)
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 r5:8027f5d0
 r4:85dd3740
INFO: task kworker/1:151:8316 is blocked on a mutex likely owned by task kworker/1:146:8299.
task:kworker/1:146   state:R  running task     stack:0     pid:8299  tgid:8299  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab39cc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:84df8c00 r8:80200c04 r7:dfd49d54 r6:ffffffff r5:84df8c00
 r4:00000000
[<81ab398c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfd49d20 to 0xdfd49d68)
9d20: e5f98000 ebec7000 00000001 80239018 7f23e000 00000001 82ace204 82acd5e0
9d40: 7f23e000 ebec7000 8280ca38 dfd49d9c dfd49da0 dfd49d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f41c4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3f40>] (__purge_vmap_area_lazy) from [<804f457c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfd49dc0 r5:dfd49e08
 r4:dfd49dc0
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8670e940
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84df8c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2e2000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e84e1000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8517c394 r4:85bcd700
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8517c394 r4:85bcd700
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84df8c00 r8:85bcd72c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcd700
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcd700 r8:802762fc r7:ea959e60 r6:85bcd280 r5:84df8c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfd49fb0 to 0xdfd49ff8)
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 r5:8027f5d0
 r4:84f0e240
INFO: task kworker/0:127:9138 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:127   state:D stack:0     pid:9138  tgid:9138  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab3598>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab22ec>] (__schedule) from [<81ab3598>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:dfaa5d84 r9:829174e8 r8:60010013 r7:829174e8 r6:dfaa5d8c r5:85816000
 r4:85816000
[<81ab356c>] (schedule) from [<81ab3720>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:85816000 r4:829174e4
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab674c>] (__mutex_lock.constprop.0) from [<81ab77ac>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfaa5e08
 r4:00000000
[<81ab7798>] (__mutex_lock_slowpath) from [<81ab77ec>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab77b0>] (mutex_lock) from [<804f4400>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8681ac40
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:85816000 r7:00000000 r6:83018400 r5:00001000 r4:7f2ea000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea5c1000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:87333394 r4:853e0900
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:87333394 r4:853e0900
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:85816000 r8:853e092c r7:82804d80 r6:dddcfb40 r5:dddcfb60
 r4:853e0900
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:853e0900 r8:802762fc r7:eaac1e60 r6:853e0980 r5:85816000
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfaa5fb0 to 0xdfaa5ff8)
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 r5:8027f5d0
 r4:85c76340
INFO: task kworker/0:127:9138 is blocked on a mutex likely owned by task kworker/1:146:8299.
task:kworker/1:146   state:R  running task     stack:0     pid:8299  tgid:8299  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab39cc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:84df8c00 r8:80200c04 r7:dfd49d54 r6:ffffffff r5:84df8c00
 r4:00000000
[<81ab398c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfd49d20 to 0xdfd49d68)
9d20: e6172000 ebec7000 00000001 80239018 7f23e000 00000001 82ace204 82acd5e0
9d40: 7f23e000 ebec7000 8280ca38 dfd49d9c dfd49da0 dfd49d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f41c4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3f40>] (__purge_vmap_area_lazy) from [<804f457c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfd49dc0 r5:dfd49e08
 r4:dfd49dc0
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8670e940
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84df8c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2e2000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e84e1000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8517c394 r4:85bcd700
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8517c394 r4:85bcd700
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84df8c00 r8:85bcd72c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcd700
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcd700 r8:802762fc r7:ea959e60 r6:85bcd280 r5:84df8c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfd49fb0 to 0xdfd49ff8)
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 r5:8027f5d0
 r4:84f0e240
INFO: task kworker/0:139:9191 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:139   state:D stack:0     pid:9191  tgid:9191  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab3598>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab22ec>] (__schedule) from [<81ab3598>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:eabedd84 r9:829174e8 r8:60000013 r7:829174e8 r6:eabedd8c r5:86430000
 r4:86430000
[<81ab356c>] (schedule) from [<81ab3720>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:86430000 r4:829174e4
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab674c>] (__mutex_lock.constprop.0) from [<81ab77ac>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eabede08
 r4:00000000
[<81ab7798>] (__mutex_lock_slowpath) from [<81ab77ec>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab77b0>] (mutex_lock) from [<804f4400>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8681ae40
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:86430000 r7:00000000 r6:83018400 r5:00001000 r4:7f2ec000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea619000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:87332794 r4:850f0a80
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:87332794 r4:850f0a80
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:86430000 r8:850f0aac r7:82804d80 r6:dddcfb40 r5:dddcfb60
 r4:850f0a80
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:850f0a80 r8:802762fc r7:ea995e60 r6:850f0c80 r5:86430000
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeabedfb0 to 0xeabedff8)
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 r5:8027f5d0
 r4:85e43c40
INFO: task kworker/0:139:9191 is blocked on a mutex likely owned by task kworker/1:146:8299.
task:kworker/1:146   state:R  running task     stack:0     pid:8299  tgid:8299  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab39cc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:84df8c00 r8:80200c04 r7:dfd49d54 r6:ffffffff r5:84df8c00
 r4:00000000
[<81ab398c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfd49d20 to 0xdfd49d68)
9d20: e63dc000 ebec7000 00000001 80239018 7f23e000 00000001 82ace204 82acd5e0
9d40: 7f23e000 ebec7000 8280ca38 dfd49d9c dfd49da0 dfd49d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f41c4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3f40>] (__purge_vmap_area_lazy) from [<804f457c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfd49dc0 r5:dfd49e08
 r4:dfd49dc0
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8670e940
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84df8c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2e2000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e84e1000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8517c394 r4:85bcd700
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8517c394 r4:85bcd700
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84df8c00 r8:85bcd72c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcd700
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcd700 r8:802762fc r7:ea959e60 r6:85bcd280 r5:84df8c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfd49fb0 to 0xdfd49ff8)
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 r5:8027f5d0
 r4:84f0e240
INFO: task kworker/0:141:9197 blocked for more than 431 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:141   state:D stack:0     pid:9197  tgid:9197  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab3598>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab22ec>] (__schedule) from [<81ab3598>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:eacb1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eacb1d8c r5:85815400
 r4:85815400
[<81ab356c>] (schedule) from [<81ab3720>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:85815400 r4:829174e4
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab674c>] (__mutex_lock.constprop.0) from [<81ab77ac>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eacb1e08
 r4:00000000
[<81ab7798>] (__mutex_lock_slowpath) from [<81ab77ec>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab77b0>] (mutex_lock) from [<804f4400>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8670e9c0
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:85815400 r7:00000000 r6:83018400 r5:00001000 r4:7f28a000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfa1f000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85acf794 r4:85086180
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:85acf794 r4:85086180
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:85815400 r8:850861ac r7:82804d80 r6:dddcfb40 r5:dddcfb60
 r4:85086180
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85086180 r8:802762fc r7:eabede60 r6:85086980 r5:85815400
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeacb1fb0 to 0xeacb1ff8)
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 r5:8027f5d0
 r4:86092e00
INFO: task kworker/0:141:9197 is blocked on a mutex likely owned by task kworker/1:146:8299.
task:kworker/1:146   state:R  running task     stack:0     pid:8299  tgid:8299  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab39cc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:84df8c00 r8:80200c04 r7:dfd49d54 r6:ffffffff r5:84df8c00
 r4:00000000
[<81ab398c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfd49d20 to 0xdfd49d68)
9d20: e6454000 ebec7000 00000001 80239018 7f23e000 00000001 82ace204 82acd5e0
9d40: 7f23e000 ebec7000 8280ca38 dfd49d9c dfd49da0 dfd49d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f41c4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3f40>] (__purge_vmap_area_lazy) from [<804f457c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfd49dc0 r5:dfd49e08
 r4:dfd49dc0
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8670e940
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84df8c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2e2000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e84e1000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8517c394 r4:85bcd700
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8517c394 r4:85bcd700
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84df8c00 r8:85bcd72c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcd700
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcd700 r8:802762fc r7:ea959e60 r6:85bcd280 r5:84df8c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfd49fb0 to 0xdfd49ff8)
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 r5:8027f5d0
 r4:84f0e240
INFO: task kworker/0:206:9901 blocked for more than 431 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:206   state:D stack:0     pid:9901  tgid:9901  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab3598>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab22ec>] (__schedule) from [<81ab3598>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:eac91d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eac91d8c r5:8591e000
 r4:8591e000
[<81ab356c>] (schedule) from [<81ab3720>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:8591e000 r4:829174e4
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3708>] (schedule_preempt_disabled) from [<81ab6da4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab674c>] (__mutex_lock.constprop.0) from [<81ab77ac>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eac91e08
 r4:00000000
[<81ab7798>] (__mutex_lock_slowpath) from [<81ab77ec>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab77b0>] (mutex_lock) from [<804f4400>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85ec5580
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8591e000 r7:00000000 r6:83018400 r5:00001000 r4:7f2e8000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfc2b000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8729b394 r4:859f2b80
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:8729b394 r4:859f2b80
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:8591e000 r8:859f2bac r7:82804d80 r6:dddcfb40 r5:dddcfb60
 r4:859f2b80
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:859f2b80 r8:802762fc r7:eaad1e60 r6:859f2b00 r5:8591e000
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeac91fb0 to 0xeac91ff8)
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 r5:8027f5d0
 r4:84de9000
INFO: task kworker/0:206:9901 is blocked on a mutex likely owned by task kworker/1:146:8299.
task:kworker/1:146   state:R  running task     stack:0     pid:8299  tgid:8299  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab22ec>] (__schedule) from [<81ab39cc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:84df8c00 r8:80200c04 r7:dfd49d54 r6:ffffffff r5:84df8c00
 r4:00000000
[<81ab398c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfd49d20 to 0xdfd49d68)
9d20: e6454000 ebec7000 00000001 80239018 7f23e000 00000001 82ace204 82acd5e0
9d40: 7f23e000 ebec7000 8280ca38 dfd49d9c dfd49da0 dfd49d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f41c4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3f40>] (__purge_vmap_area_lazy) from [<804f457c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfd49dc0 r5:dfd49e08
 r4:dfd49dc0
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4398>] (_vm_unmap_aliases) from [<804f81e8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8670e940
 r4:00000000
[<804f807c>] (vfree) from [<80564020>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84df8c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2e2000
[<80563ff0>] (execmem_free) from [<803cb2cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e84e1000
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb2bc>] (bpf_jit_free_exec) from [<803cb6ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb644>] (bpf_jit_free) from [<803cc7d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8517c394 r4:85bcd700
[<803cc694>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8517c394 r4:85bcd700
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84df8c00 r8:85bcd72c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85bcd700
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85bcd700 r8:802762fc r7:ea959e60 r6:85bcd280 r5:84df8c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfd49fb0 to 0xdfd49ff8)
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 r5:8027f5d0
 r4:84f0e240
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:000f0113 r5:600f0193 r4:822958fc
[<80201b58>] (show_stack) from [<8021ee34>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b58>] (show_stack) from [<8021ee34>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120)
[<8021edc4>] (dump_stack_lvl) from [<8021ee58>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000001 r4:00000001
[<8021ee40>] (dump_stack) from [<81a9bdd0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<81a9bc70>] (nmi_cpu_backtrace) from [<81a9bf1c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
 r7:00000001 r6:8280c710 r5:8281af5c r4:ffffffff
[<81a9bdec>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852)
 r9:00007d5a r8:8280c890 r7:000220a4 r6:00007d5a r5:82ac27e4 r4:00000048
[<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa3a2c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline])
[<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa3a2c>] (__sys_info lib/sys_info.c:157 [inline])
[<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa3a2c>] (sys_info+0x68/0xa8 lib/sys_info.c:165)
[<81aa39c4>] (sys_info) from [<803837fc>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline])
[<81aa39c4>] (sys_info) from [<803837fc>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515)
 r5:82ac27e4 r4:866b390c
[<80383398>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:00000000 r8:80383398 r7:832d4180 r6:832d4180 r5:832e2400
 r4:00000001
[<8027f5d0>] (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 r5:8027f5d0
 r4:838c6500
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 2817 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 : [<81abcf40>]    lr : [<80aa3b1c>]    psr: 60010013
sp : eb31deb0  ip : eb31dec0  fp : eb31debc
r10: 82959c04  r9 : 00000000  r8 : 00000000
r7 : 00000117  r6 : 82959b68  r5 : 00000000  r4 : 00000001
r3 : 000013cd  r2 : 00000000  r1 : 60010013  r0 : 846aa440
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 30c5387d  Table: 84e031c0  DAC: fffffffd
Call trace: 
[<81abcf18>] (_raw_spin_unlock_irqrestore) from [<80aa3b1c>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline])
[<81abcf18>] (_raw_spin_unlock_irqrestore) from [<80aa3b1c>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline])
[<81abcf18>] (_raw_spin_unlock_irqrestore) from [<80aa3b1c>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603)
[<80aa3afc>] (pl011_console_device_unlock) from [<802e5768>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149)
[<802e56e0>] (nbcon_emit_one) from [<802e59e8>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255)
 r6:82abf0fc r5:82959b68 r4:84634800
[<802e57e0>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:82959b68 r8:802e57e0 r7:84b40000 r6:84b40000 r5:84634800
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeb31dfb0 to 0xeb31dff8)
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 r5:8027f5d0
 r4:8448a1c0