INFO: task kworker/1:4:2886 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:4     state:D
 stack:0     pid:2886  tgid:2886  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:eafc9d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eafc9d8c r5:83910000
 r4:83910000
[<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:83910000 r4:829174e4
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eafc9e08
 r4:00000000
[<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86009140
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:83910000 r7:00000000 r6:83018600 r5:00001000 r4:7f031000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfa27000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86240b94 r4:84ab0a80
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86240b94 r4:84ab0a80
[<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 r9:83910000 r8:84ab0aac r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:84ab0a80
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84ab0a80 r8:802762fc r7:eafb5e60 r6:84ac7700 r5:83910000
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeafc9fb0 to 0xeafc9ff8)
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
 r4:84b56180
INFO: task kworker/1:4:2886 is blocked on a mutex likely owned by task kworker/1:8:3735.
task:kworker/1:8     state:R  running task     stack:0     pid:3735  tgid:3735  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:85918c00 r8:80200c04 r7:e0299d54 r6:ffffffff r5:85918c00
 r4:00000000
[<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0299d20 to 0xe0299d68)
9d20: bfbe5000 ea79b000 00000001 80239018 7f033000 00000001 82ace204 82acd5e0
9d40: 7f033000 ea79b000 8280ca38 e0299d9c e0299da0 e0299d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0299dc0 r5:e0299e08
 r4:e0299dc0
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86009dc0
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85918c00 r7:00000000 r6:83018600 r5:00001000 r4:7f00b000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfcdb000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86240794 r4:85f5c100
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86240794 r4:85f5c100
[<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 r9:85918c00 r8:85f5c12c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f5c100
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f5c100 r8:802762fc r7:e01cde60 r6:85f5c280 r5:85918c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0299fb0 to 0xe0299ff8)
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
 r4:84d17900
INFO: task kworker/1:120:4798 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:120   state:D stack:0     pid:4798  tgid:4798  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:e4311d84 r9:829174e8 r8:60000113 r7:829174e8 r6:e4311d8c r5:8538b000
 r4:8538b000
[<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:8538b000 r4:829174e4
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e4311e08
 r4:00000000
[<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:861d7c40
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:8538b000 r7:00000000 r6:83018600 r5:00001000 r4:7f033000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e0177000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8623af94 r4:861b4980
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8623af94 r4:861b4980
[<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 r9:8538b000 r8:861b49ac r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:861b4980
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:861b4980 r8:802762fc r7:e431de60 r6:861b4f80 r5:8538b000
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe4311fb0 to 0xe4311ff8)
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
 r4:851fa600
INFO: task kworker/1:120:4798 is blocked on a mutex likely owned by task kworker/1:8:3735.
task:kworker/1:8     state:R  running task     stack:0     pid:3735  tgid:3735  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:85918c00 r8:80200c04 r7:e0299d54 r6:ffffffff r5:85918c00
 r4:00000000
[<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0299d20 to 0xe0299d68)
9d20: c08ff000 ea79b000 00000001 80239018 7f033000 00000001 82ace204 82acd5e0
9d40: 7f033000 ea79b000 8280ca38 e0299d9c e0299da0 e0299d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0299dc0 r5:e0299e08
 r4:e0299dc0
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86009dc0
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85918c00 r7:00000000 r6:83018600 r5:00001000 r4:7f00b000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfcdb000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86240794 r4:85f5c100
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86240794 r4:85f5c100
[<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 r9:85918c00 r8:85f5c12c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f5c100
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f5c100 r8:802762fc r7:e01cde60 r6:85f5c280 r5:85918c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0299fb0 to 0xe0299ff8)
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
 r4:84d17900
INFO: task kworker/1:122:4811 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:122   state:D stack:0     pid:4811  tgid:4811  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:eaaedd84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaaedd8c r5:85923000
 r4:85923000
[<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:85923000 r4:829174e4
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaaede08
 r4:00000000
[<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:861ceb40
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85923000 r7:00000000 r6:83018600 r5:00001000 r4:7f02d000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:df94e000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8623b394 r4:84d1bf80
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8623b394 r4:84d1bf80
[<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 r9:85923000 r8:84d1bfac r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:84d1bf80
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84d1bf80 r8:802762fc r7:e4311e60 r6:84d1be80 r5:85923000
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeaaedfb0 to 0xeaaedff8)
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
 r4:85fd43c0
INFO: task kworker/1:122:4811 is blocked on a mutex likely owned by task kworker/1:8:3735.
task:kworker/1:8     state:R  running task     stack:0     pid:3735  tgid:3735  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:85918c00 r8:80200c04 r7:e0299d54 r6:ffffffff r5:85918c00
 r4:00000000
[<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0299d20 to 0xe0299d68)
9d20: c1899000 ea79b000 00000001 80239018 7f033000 00000001 82ace204 82acd5e0
9d40: 7f033000 ea79b000 8280ca38 e0299d9c e0299da0 e0299d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0299dc0 r5:e0299e08
 r4:e0299dc0
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86009dc0
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85918c00 r7:00000000 r6:83018600 r5:00001000 r4:7f00b000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfcdb000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86240794 r4:85f5c100
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86240794 r4:85f5c100
[<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 r9:85918c00 r8:85f5c12c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f5c100
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f5c100 r8:802762fc r7:e01cde60 r6:85f5c280 r5:85918c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0299fb0 to 0xe0299ff8)
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
 r4:84d17900
INFO: task kworker/1:123:4827 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:123   state:D stack:0     pid:4827  tgid:4827  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:e02d9d84 r9:829174e8 r8:60000013 r7:829174e8 r6:e02d9d8c r5:861a1800
 r4:861a1800
[<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:861a1800 r4:829174e4
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e02d9e08
 r4:00000000
[<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:860095c0
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:861a1800 r7:00000000 r6:83018600 r5:00001000 r4:7f02f000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfa14000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86242794 r4:84d1b800
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86242794 r4:84d1b800
[<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 r9:861a1800 r8:84d1b82c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:84d1b800
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84d1b800 r8:802762fc r7:eaaede60 r6:861e1c00 r5:861a1800
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe02d9fb0 to 0xe02d9ff8)
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
 r4:85fdc580
INFO: task kworker/1:123:4827 is blocked on a mutex likely owned by task kworker/1:8:3735.
task:kworker/1:8     state:R  running task     stack:0     pid:3735  tgid:3735  ppid:2      task_flags:0x4208060 flags:0x00000002
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:85918c00 r8:80200c04 r7:e0299d54 r6:ffffffff r5:85918c00
 r4:00000000
[<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0299d20 to 0xe0299d68)
9d20: c1a93000 ea79b000 00000001 80239018 7f033000 00000001 82ace204 82acd5e0
9d40: 7f033000 ea79b000 8280ca38 e0299d9c e0299da0 e0299d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0299dc0 r5:e0299e08
 r4:e0299dc0
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86009dc0
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85918c00 r7:00000000 r6:83018600 r5:00001000 r4:7f00b000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfcdb000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86240794 r4:85f5c100
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86240794 r4:85f5c100
[<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 r9:85918c00 r8:85f5c12c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f5c100
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f5c100 r8:802762fc r7:e01cde60 r6:85f5c280 r5:85918c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0299fb0 to 0xe0299ff8)
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
 r4:84d17900
INFO: task kworker/1:124:4899 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:124   state:D stack:0     pid:4899  tgid:4899  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:e4375d84 r9:829174e8 r8:60000113 r7:829174e8 r6:e4375d8c r5:85926000
 r4:85926000
[<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:85926000 r4:829174e4
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e4375e08
 r4:00000000
[<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:861d7a80
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85926000 r7:00000000 r6:83018600 r5:00001000 r4:7f02b000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e00e9000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8623ab94 r4:85d12200
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8623ab94 r4:85d12200
[<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 r9:85926000 r8:85d1222c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85d12200
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85d12200 r8:802762fc r7:eafc9e60 r6:85d12480 r5:85926000
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe4375fb0 to 0xe4375ff8)
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
 r4:86012080
INFO: task kworker/1:124:4899 is blocked on a mutex likely owned by task kworker/1:8:3735.
task:kworker/1:8     state:R  running task     stack:0     pid:3735  tgid:3735  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:85918c00 r8:80200c04 r7:e0299d54 r6:ffffffff r5:85918c00
 r4:00000000
[<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0299d20 to 0xe0299d68)
9d20: c1a93000 ea79b000 00000001 80239018 7f033000 00000001 82ace204 82acd5e0
9d40: 7f033000 ea79b000 8280ca38 e0299d9c e0299da0 e0299d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0299dc0 r5:e0299e08
 r4:e0299dc0
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86009dc0
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85918c00 r7:00000000 r6:83018600 r5:00001000 r4:7f00b000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfcdb000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86240794 r4:85f5c100
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86240794 r4:85f5c100
[<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 r9:85918c00 r8:85f5c12c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f5c100
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f5c100 r8:802762fc r7:e01cde60 r6:85f5c280 r5:85918c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0299fb0 to 0xe0299ff8)
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
 r4:84d17900
INFO: task kworker/0:120:4919 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:120   state:D stack:0     pid:4919  tgid:4919  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:e432dd84 r9:829174e8 r8:60000113 r7:829174e8 r6:e432dd8c r5:85360c00
 r4:85360c00
[<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:85360c00 r4:829174e4
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e432de08
 r4:00000000
[<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:861d7240
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:85360c00 r7:00000000 r6:83018400 r5:00001000 r4:7f00d000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e00d4000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8623a794 r4:85851380
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:8623a794 r4:85851380
[<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 r9:85360c00 r8:858513ac r7:82804d80 r6:dddcfb40 r5:dddcfb60
 r4:85851380
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85851380 r8:802762fc r7:ea685e60 r6:85851400 r5:85360c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe432dfb0 to 0xe432dff8)
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
 r4:86012080
INFO: task kworker/0:120:4919 is blocked on a mutex likely owned by task kworker/1:8:3735.
task:kworker/1:8     state:R  running task     stack:0     pid:3735  tgid:3735  ppid:2      task_flags:0x4208060 flags:0x00000002
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:85918c00 r8:80200c04 r7:e0299d54 r6:ffffffff r5:85918c00
 r4:00000000
[<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0299d20 to 0xe0299d68)
9d20: c5c50000 ea79b000 00000001 80239018 7f033000 00000001 82ace204 82acd5e0
9d40: 7f033000 ea79b000 8280ca38 e0299d9c e0299da0 e0299d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0299dc0 r5:e0299e08
 r4:e0299dc0
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86009dc0
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85918c00 r7:00000000 r6:83018600 r5:00001000 r4:7f00b000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfcdb000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86240794 r4:85f5c100
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86240794 r4:85f5c100
[<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 r9:85918c00 r8:85f5c12c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f5c100
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f5c100 r8:802762fc r7:e01cde60 r6:85f5c280 r5:85918c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0299fb0 to 0xe0299ff8)
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
 r4:84d17900
INFO: task kworker/1:125:4936 blocked for more than 431 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:125   state:D stack:0     pid:4936  tgid:4936  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:dfbc1d84 r9:829174e8 r8:60000013 r7:829174e8 r6:dfbc1d8c r5:85362400
 r4:85362400
[<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:85362400 r4:829174e4
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbc1e08
 r4:00000000
[<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:861d73c0
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85362400 r7:00000000 r6:83018600 r5:00001000 r4:7f003000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:df937000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8623bb94 r4:85d12080
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8623bb94 r4:85d12080
[<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 r9:85362400 r8:85d120ac r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85d12080
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85d12080 r8:802762fc r7:eaaede60 r6:85851200 r5:85362400
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfbc1fb0 to 0xdfbc1ff8)
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
 r4:861d72c0
INFO: task kworker/1:125:4936 is blocked on a mutex likely owned by task kworker/1:8:3735.
task:kworker/1:8     state:R  running task     stack:0     pid:3735  tgid:3735  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:85918c00 r8:80200c04 r7:e0299d54 r6:ffffffff r5:85918c00
 r4:00000000
[<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0299d20 to 0xe0299d68)
9d20: c5c50000 ea79b000 00000001 80239018 7f033000 00000001 82ace204 82acd5e0
9d40: 7f033000 ea79b000 8280ca38 e0299d9c e0299da0 e0299d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0299dc0 r5:e0299e08
 r4:e0299dc0
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86009dc0
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85918c00 r7:00000000 r6:83018600 r5:00001000 r4:7f00b000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfcdb000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86240794 r4:85f5c100
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86240794 r4:85f5c100
[<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 r9:85918c00 r8:85f5c12c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f5c100
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f5c100 r8:802762fc r7:e01cde60 r6:85f5c280 r5:85918c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0299fb0 to 0xe0299ff8)
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
 r4:84d17900
INFO: task kworker/1:126:4944 blocked for more than 431 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:126   state:D stack:0     pid:4944  tgid:4944  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:e4321d84 r9:829174e8 r8:60000013 r7:829174e8 r6:e4321d8c r5:85360000
 r4:85360000
[<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:85360000 r4:829174e4
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e4321e08
 r4:00000000
[<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:861d7540
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85360000 r7:00000000 r6:83018600 r5:00001000 r4:7f035000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e83e5000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8623bf94 r4:85d12580
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8623bf94 r4:85d12580
[<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 r9:85360000 r8:85d125ac r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85d12580
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85d12580 r8:802762fc r7:e02d9e60 r6:85851b00 r5:85360000
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe4321fb0 to 0xe4321ff8)
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
 r4:861ce900
INFO: task kworker/1:126:4944 is blocked on a mutex likely owned by task kworker/1:8:3735.
task:kworker/1:8     state:R  running task     stack:0     pid:3735  tgid:3735  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:85918c00 r8:80200c04 r7:e0299d54 r6:ffffffff r5:85918c00
 r4:00000000
[<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0299d20 to 0xe0299d68)
9d20: c5c50000 ea79b000 00000001 80239018 7f033000 00000001 82ace204 82acd5e0
9d40: 7f033000 ea79b000 8280ca38 e0299d9c e0299da0 e0299d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0299dc0 r5:e0299e08
 r4:e0299dc0
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86009dc0
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85918c00 r7:00000000 r6:83018600 r5:00001000 r4:7f00b000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfcdb000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86240794 r4:85f5c100
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86240794 r4:85f5c100
[<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 r9:85918c00 r8:85f5c12c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f5c100
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f5c100 r8:802762fc r7:e01cde60 r6:85f5c280 r5:85918c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0299fb0 to 0xe0299ff8)
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
 r4:84d17900
INFO: task kworker/1:128:4947 blocked for more than 431 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:128   state:D stack:0     pid:4947  tgid:4947  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline])
[<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960)
 r10:e4335d84 r9:829174e8 r8:60010113 r7:829174e8 r6:e4335d8c r5:85920000
 r4:85920000
[<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017)
 r5:85920000 r4:829174e4
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e4335e08
 r4:00000000
[<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:861cec80
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85920000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfab3000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86238794 r4:85d12000
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86238794 r4:85d12000
[<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 r9:85920000 r8:85d1202c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85d12000
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85d12000 r8:802762fc r7:ea411e60 r6:85d12280 r5:85920000
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe4335fb0 to 0xe4335ff8)
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
 r4:861cef40
INFO: task kworker/1:128:4947 is blocked on a mutex likely owned by task kworker/1:8:3735.
task:kworker/1:8     state:R  running task     stack:0     pid:3735  tgid:3735  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190)
 r10:8280ca38 r9:85918c00 r8:80200c04 r7:e0299d54 r6:ffffffff r5:85918c00
 r4:00000000
[<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xe0299d20 to 0xe0299d68)
9d20: c5c50000 ea79b000 00000001 80239018 7f033000 00000001 82ace204 82acd5e0
9d40: 7f033000 ea79b000 8280ca38 e0299d9c e0299da0 e0299d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0299dc0 r5:e0299e08
 r4:e0299dc0
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86009dc0
 r4:00000000
[<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:85918c00 r7:00000000 r6:83018600 r5:00001000 r4:7f00b000
[<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfcdb000
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86240794 r4:85f5c100
[<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86240794 r4:85f5c100
[<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 r9:85918c00 r8:85f5c12c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f5c100
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f5c100 r8:802762fc r7:e01cde60 r6:85f5c280 r5:85918c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0299fb0 to 0xe0299ff8)
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
 r4:84d17900
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: 
[<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:000f0113 r5:600f0193 r4:8229586c
[<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)
 r5:00000000 r4:00000001
[<8021ee40>] (dump_stack) from [<81a9b8e0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<81a9b780>] (nmi_cpu_backtrace) from [<81a9ba2c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
 r7:00000000 r6:8280c710 r5:8281af5c r4:ffffffff
[<81a9b8fc>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852)
 r9:00007d54 r8:8280c890 r7:0000a6b5 r6:00007d54 r5:82ac27e4 r4:00000048
[<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline])
[<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (__sys_info lib/sys_info.c:157 [inline])
[<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (sys_info+0x68/0xa8 lib/sys_info.c:165)
[<81aa34d4>] (sys_info) from [<80383780>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline])
[<81aa34d4>] (sys_info) from [<80383780>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515)
 r5:82ac27e4 r4:864d7c0c
[<8038331c>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:00000000 r8:8038331c r7:830d6380 r6:830d6380 r5:8321c800
 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
 r4:832dbf40
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 : [<81abca50>]    lr : [<80aa3968>]    psr: 60000113
sp : eaf81eb0  ip : eaf81ec0  fp : eaf81ebc
r10: 82959c04  r9 : 00000001  r8 : 00000000
r7 : 00000117  r6 : 82959b68  r5 : 00000000  r4 : 00000001
r3 : 00000da9  r2 : 00000000  r1 : 60000113  r0 : 8400fc40
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 30c5387d  Table: 85171b00  DAC: 00000000
Call trace: 
[<81abca28>] (_raw_spin_unlock_irqrestore) from [<80aa3968>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline])
[<81abca28>] (_raw_spin_unlock_irqrestore) from [<80aa3968>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline])
[<81abca28>] (_raw_spin_unlock_irqrestore) from [<80aa3968>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603)
[<80aa3948>] (pl011_console_device_unlock) from [<802e5720>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149)
[<802e5698>] (nbcon_emit_one) from [<802e59a0>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255)
 r6:82abf0fc r5:82959b68 r4:83915400
[<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:82959b68 r8:802e5798 r7:84ac1200 r6:84ac1200 r5:83915400
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeaf81fb0 to 0xeaf81ff8)
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
 r4:84e4e340