INFO: task kworker/1:40:4369 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:40    state:D stack:0     pid:4369  tgid:4369  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:e01d1d84 r9:00000002 r8:60000013 r7:829171a0 r6:e01d1d8c r5:84d53000
 r4:84d53000
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84d53000 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e01d1e08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84f65900
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84d53000 r7:00000000 r6:83018600 r5:00001000 r4:7f051000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfd25000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:858beb8c r4:857f2a80
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:858beb8c r4:857f2a80
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84d53000 r8:857f2aac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:857f2a80
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:857f2a80 r8:80278fec r7:dfcbde60 r6:857f2b00 r5:84d53000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe01d1fb0 to 0xe01d1ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:85763b00
INFO: task kworker/1:40:4369 is blocked on a mutex likely owned by task kworker/1:39:4361.
task:kworker/1:39    state:R  running task     stack:0     pid:4361  tgid:4361  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84d50000 r8:80200c04 r7:dfcbdd54 r6:ffffffff r5:84d50000
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfcbdd20 to 0xdfcbdd68)
dd20: a7641000 ebcb5000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
dd40: 7f047000 ebcb5000 8280c9b4 dfcbdd9c dfcbdda0 dfcbdd70 80230af0 80239c10
dd60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfcbddc0 r5:dfcbde08
 r4:dfcbddc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85622880
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84d50000 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfc17000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:84ed778c r4:857f2780
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:84ed778c r4:857f2780
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84d50000 r8:857f27ac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:857f2780
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:857f2780 r8:80278fec r7:dfa61e60 r6:857f2880 r5:84d50000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfcbdfb0 to 0xdfcbdff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:857ef800
INFO: task kworker/0:135:4630 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:135   state:D stack:0     pid:4630  tgid:4630  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea465d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea465d8c r5:84d09800
 r4:84d09800
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:84d09800 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea465e08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8583f8c0
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84d09800 r7:00000000 r6:83018400 r5:00001000 r4:7f053000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:ea47d000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:84ed7f8c r4:84f0d180
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:84ed7f8c r4:84f0d180
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84d09800 r8:84f0d1ac r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84f0d180
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84f0d180 r8:80278fec r7:ea681e60 r6:8562a980 r5:84d09800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea465fb0 to 0xea465ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f0aec0
INFO: task kworker/0:135:4630 is blocked on a mutex likely owned by task kworker/1:39:4361.
task:kworker/1:39    state:R  running task     stack:0     pid:4361  tgid:4361  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84d50000 r8:80200c04 r7:dfcbdd54 r6:ffffffff r5:84d50000
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfcbdd20 to 0xdfcbdd68)
dd20: a7bf8000 ebcb5000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
dd40: 7f047000 ebcb5000 8280c9b4 dfcbdd9c dfcbdda0 dfcbdd70 80230af0 80239c10
dd60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfcbddc0 r5:dfcbde08
 r4:dfcbddc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85622880
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84d50000 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfc17000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:84ed778c r4:857f2780
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:84ed778c r4:857f2780
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84d50000 r8:857f27ac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:857f2780
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:857f2780 r8:80278fec r7:dfa61e60 r6:857f2880 r5:84d50000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfcbdfb0 to 0xdfcbdff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:857ef800
INFO: task kworker/0:193:4815 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:193   state:D stack:0     pid:4815  tgid:4815  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a645a8>] (__schedule_loop kernel/sched/core.c:7011 [inline])
[<81a63614>] (__schedule) from [<81a645a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026)
 r10:ea6edd84 r9:00000002 r8:60000113 r7:829171a0 r6:ea6edd8c r5:849a4800
 r4:849a4800
[<81a6457c>] (schedule) from [<81a64990>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083)
 r5:849a4800 r4:8291719c
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline])
[<81a64978>] (schedule_preempt_disabled) from [<81a67540>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760)
[<81a671f0>] (__mutex_lock.constprop.0) from [<81a67ce8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049)
 r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6ede08
 r4:00000000
[<81a67cd4>] (__mutex_lock_slowpath) from [<81a67d28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274)
[<81a67cec>] (mutex_lock) from [<804e9f5c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918)
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8583f100
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:849a4800 r7:00000000 r6:83018400 r5:00001000 r4:7f04f000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfc8d000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:858bfb8c r4:84e03300
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:dddcfd80 r6:83018400 r5:858bfb8c r4:84e03300
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:849a4800 r8:84e0332c r7:82804d40 r6:dddcfd80 r5:dddcfda0
 r4:84e03300
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84e03300 r8:80278fec r7:ea6cde60 r6:84e03380 r5:849a4800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea6edfb0 to 0xea6edff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:84f06780
INFO: task kworker/0:193:4815 is blocked on a mutex likely owned by task kworker/1:39:4361.
task:kworker/1:39    state:R  running task     stack:0     pid:4361  tgid:4361  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81a63614>] (__schedule) from [<81a649dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256)
 r10:8280c9b4 r9:84d50000 r8:80200c04 r7:dfcbdd54 r6:ffffffff r5:84d50000
 r4:00000000
[<81a6499c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xdfcbdd20 to 0xdfcbdd68)
dd20: a7bf8000 ebcb5000 00000001 80239bf8 7f047000 00000001 82acb1c4 82aca5a0
dd40: 7f047000 ebcb5000 8280c9b4 dfcbdd9c dfcbdda0 dfcbdd70 80230af0 80239c10
dd60: 80000013 ffffffff
 r5:80000013 r4:80239c10
[<80230a8c>] (flush_tlb_kernel_range) from [<804e9d20>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342)
 r4:82acb1e4
[<804e9a9c>] (__purge_vmap_area_lazy) from [<804ea0d8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfcbddc0 r5:dfcbde08
 r4:dfcbddc0
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vm_reset_perms mm/vmalloc.c:3349 [inline])
[<804e9ef4>] (_vm_unmap_aliases) from [<804edd3c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85622880
 r4:00000000
[<804edbd0>] (vfree) from [<80558a28>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84d50000 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000
[<805589f8>] (execmem_free) from [<803c5f48>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052)
 r5:00001000 r4:dfc17000
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline])
[<803c5f38>] (bpf_jit_free_exec) from [<803c6328>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221)
[<803c62c0>] (bpf_jit_free) from [<803c73d0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898)
 r5:84ed778c r4:857f2780
[<803c7290>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r7:ddde3d80 r6:83018600 r5:84ed778c r4:857f2780
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:84d50000 r8:857f27ac r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:857f2780
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:857f2780 r8:80278fec r7:dfa61e60 r6:857f2880 r5:84d50000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfcbdfb0 to 0xdfcbdff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:857ef800
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:00000013 r5:60000093 r4:82252544
[<80201b08>] (show_stack) from [<8021f8b0>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b08>] (show_stack) from [<8021f8b0>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120)
[<8021f840>] (dump_stack_lvl) from [<8021f8d4>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:00000001
[<8021f8bc>] (dump_stack) from [<81a4d22c>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<81a4d0cc>] (nmi_cpu_backtrace) from [<81a4d378>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
 r7:00000000 r6:8280c690 r5:8281ae34 r4:ffffffff
[<81a4d248>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852)
 r9:8281ba28 r8:8280c810 r7:00024d0c r6:00007c13 r5:82abf7d4 r4:85caef0c
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fab0>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline])
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fab0>] (check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline])
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fab0>] (watchdog+0x5d0/0x850 kernel/hung_task.c:495)
[<8037f4e0>] (watchdog) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:00000000 r8:8037f4e0 r7:832a1f80 r6:832a1f80 r5:83329800
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdf8d9fb0 to 0xdf8d9ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:833c8a00
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2823 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194
LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]
LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603
pc : [<81a6d47c>]    lr : [<80a8f070>]    psr: 60000013
sp : eb08deb0  ip : eb08dec0  fp : eb08debc
r10: 82959554  r9 : 00000001  r8 : 00000000
r7 : 00000117  r6 : 829594b8  r5 : 00000000  r4 : 00000001
r3 : 000006d6  r2 : 00000000  r1 : 60000013  r0 : 83c0b040
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 30c5387d  Table: 8476f140  DAC: 00000000
Call trace: 
[<81a6d454>] (_raw_spin_unlock_irqrestore) from [<80a8f070>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline])
[<81a6d454>] (_raw_spin_unlock_irqrestore) from [<80a8f070>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline])
[<81a6d454>] (_raw_spin_unlock_irqrestore) from [<80a8f070>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603)
[<80a8f050>] (pl011_console_device_unlock) from [<802e3768>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1142)
[<802e36e0>] (nbcon_emit_one) from [<802e3988>] (nbcon_kthread_func+0x1a8/0x2a4 kernel/printk/nbcon.c:1229)
 r6:8280c690 r5:83ba0c00 r4:829594b8
[<802e37e0>] (nbcon_kthread_func) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:829594b8 r8:802e37e0 r7:84b9b980 r6:84b9b980 r5:83ba0c00
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeb08dfb0 to 0xeb08dff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:846e9280