INFO: task kworker/1:1:70 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:0 pid:70 tgid:70 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:df97dd84 r9:00000002 r8:60000013 r7:829171a0 r6:df97dd8c r5:83311800 r4:83311800 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:83311800 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df97de08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85662fc0 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83311800 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa9a000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf038c r4:833fb080 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85cf038c r4:833fb080 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:83311800 r8:833fb0ac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:833fb080 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:833fb080 r8:80278fec r7:df879e60 r6:833fb100 r5:83311800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf97dfb0 to 0xdf97dff8) 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 r4:833fa080 INFO: task kworker/1:1:70 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a0a0b000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 INFO: task kworker/0:0:14767 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:0 state:D stack:0 pid:14767 tgid:14767 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ed875d84 r9:00000002 r8:60000113 r7:829171a0 r6:ed875d8c r5:857fd400 r4:857fd400 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:857fd400 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ed875e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f22c00 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:857fd400 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa8b000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85aa4f8c r4:8572d600 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85aa4f8c r4:8572d600 [<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 r9:857fd400 r8:8572d62c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:8572d600 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8572d600 r8:80278fec r7:df841e60 r6:8572d780 r5:857fd400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xed875fb0 to 0xed875ff8) 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 r4:85e86f80 INFO: task kworker/0:0:14767 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a0a0b000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 INFO: task kworker/1:7:15730 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:7 state:D stack:0 pid:15730 tgid:15730 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ec28dd84 r9:00000002 r8:60070013 r7:829171a0 r6:ec28dd8c r5:841e6c00 r4:841e6c00 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:841e6c00 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ec28de08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098080 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:841e6c00 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df8df000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf4f8c r4:8572d400 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85cf4f8c r4:8572d400 [<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 r9:841e6c00 r8:8572d42c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:8572d400 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8572d400 r8:80278fec r7:ec701e60 r6:8572dc80 r5:841e6c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xec28dfb0 to 0xec28dff8) 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 r4:85eb0280 INFO: task kworker/1:7:15730 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a131f000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 INFO: task kworker/0:27:15949 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:27 state:D stack:0 pid:15949 tgid:15949 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e004dd84 r9:00000002 r8:60000113 r7:829171a0 r6:e004dd8c r5:85d00c00 r4:85d00c00 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:85d00c00 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e004de08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85b89000 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d00c00 r7:00000000 r6:83018400 r5:00001000 r4:7f049000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df96b000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:848eab8c r4:85b47980 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:848eab8c r4:85b47980 [<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 r9:85d00c00 r8:85b479ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85b47980 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b47980 r8:80278fec r7:dfa01e60 r6:85b47700 r5:85d00c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe004dfb0 to 0xe004dff8) 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 r4:8614a880 INFO: task kworker/0:27:15949 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a131f000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 INFO: task kworker/1:31:15954 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:31 state:D stack:0 pid:15954 tgid:15954 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e007dd84 r9:00000002 r8:60000113 r7:829171a0 r6:e007dd8c r5:83b0e000 r4:83b0e000 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:83b0e000 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e007de08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85e17140 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83b0e000 r7:00000000 r6:83018600 r5:00001000 r4:7f053000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df9d9000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf138c r4:85a76e80 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85cf138c r4:85a76e80 [<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 r9:83b0e000 r8:85a76eac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85a76e80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85a76e80 r8:80278fec r7:e00e5e60 r6:85688e00 r5:83b0e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe007dfb0 to 0xe007dff8) 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 r4:86098740 INFO: task kworker/1:31:15954 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a1824000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 INFO: task kworker/1:32:15957 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:32 state:D stack:0 pid:15957 tgid:15957 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:df9f5d84 r9:00000002 r8:60000113 r7:829171a0 r6:df9f5d8c r5:8320e000 r4:8320e000 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8320e000 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df9f5e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86169fc0 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8320e000 r7:00000000 r6:83018600 r5:00001000 r4:7f059000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa61000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf738c r4:85517b80 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85cf738c r4:85517b80 [<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 r9:8320e000 r8:85517bac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85517b80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85517b80 r8:80278fec r7:e007de60 r6:85517680 r5:8320e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf9f5fb0 to 0xdf9f5ff8) 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 r4:86098680 INFO: task kworker/1:32:15957 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a1824000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 INFO: task kworker/0:28:15962 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:28 state:D stack:0 pid:15962 tgid:15962 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfad1d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfad1d8c r5:86138000 r4:86138000 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:86138000 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfad1e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f22880 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:86138000 r7:00000000 r6:83018400 r5:00001000 r4:7f059000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfb99000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85aa678c r4:85c23800 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85aa678c r4:85c23800 [<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 r9:86138000 r8:85c2382c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85c23800 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c23800 r8:80278fec r7:e004de60 r6:85e93900 r5:86138000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfad1fb0 to 0xdfad1ff8) 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 r4:85b91000 INFO: task kworker/0:28:15962 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a1b61000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 INFO: task kworker/0:29:15968 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:29 state:D stack:0 pid:15968 tgid:15968 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfa09d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfa09d8c r5:8613bc00 r4:8613bc00 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8613bc00 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfa09e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f228c0 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8613bc00 r7:00000000 r6:83018400 r5:00001000 r4:7f262000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfbcd000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf3b8c r4:85c23f80 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85cf3b8c r4:85c23f80 [<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 r9:8613bc00 r8:85c23fac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85c23f80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c23f80 r8:80278fec r7:e004de60 r6:85e93980 r5:8613bc00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa09fb0 to 0xdfa09ff8) 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 r4:85bfe6c0 INFO: task kworker/0:29:15968 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a1b61000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 INFO: task kworker/1:33:15970 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:33 state:D stack:0 pid:15970 tgid:15970 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:df9ddd84 r9:00000002 r8:60000013 r7:829171a0 r6:df9ddd8c r5:86139800 r4:86139800 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:86139800 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df9dde08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a74780 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86139800 r7:00000000 r6:83018600 r5:00001000 r4:7f057000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa37000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf178c r4:85e93200 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85cf178c r4:85e93200 [<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 r9:86139800 r8:85e9322c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85e93200 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e93200 r8:80278fec r7:df9f5e60 r6:838ffb80 r5:86139800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf9ddfb0 to 0xdf9ddff8) 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 r4:85e222c0 INFO: task kworker/1:33:15970 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a1b61000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 INFO: task kworker/1:34:15974 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:34 state:D stack:0 pid:15974 tgid:15974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfa41d84 r9:00000002 r8:60000013 r7:829171a0 r6:dfa41d8c r5:8613c800 r4:8613c800 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8613c800 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfa41e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c9cc40 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8613c800 r7:00000000 r6:83018600 r5:00001000 r4:7f055000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa31000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf1f8c r4:841aa200 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85cf1f8c r4:841aa200 [<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 r9:8613c800 r8:841aa22c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:841aa200 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:841aa200 r8:80278fec r7:df9f5e60 r6:85b4fa00 r5:8613c800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa41fb0 to 0xdfa41ff8) 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 r4:85c19300 INFO: task kworker/1:34:15974 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a20be000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/1:35:15975 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:35 state:D stack:0 pid:15975 tgid:15975 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:df9e1d84 r9:00000002 r8:60000113 r7:829171a0 r6:df9e1d8c r5:8613d400 r4:8613d400 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8613d400 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df9e1e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8578a900 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8613d400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa8d000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf238c r4:85bfbb80 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85cf238c r4:85bfbb80 [<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 r9:8613d400 r8:85bfbbac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85bfbb80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85bfbb80 r8:80278fec r7:df9f5e60 r6:85923380 r5:8613d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf9e1fb0 to 0xdf9e1ff8) 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 r4:85c19300 INFO: task kworker/1:35:15975 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a20be000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/1:36:15979 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:36 state:D stack:0 pid:15979 tgid:15979 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfa6dd84 r9:00000002 r8:60000113 r7:829171a0 r6:dfa6dd8c r5:8613e000 r4:8613e000 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8613e000 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfa6de08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098380 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8613e000 r7:00000000 r6:83018600 r5:00001000 r4:7f045000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df849000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf638c r4:85923f80 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85cf638c r4:85923f80 [<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 r9:8613e000 r8:85923fac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85923f80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85923f80 r8:80278fec r7:df9e1e60 r6:85923480 r5:8613e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa6dfb0 to 0xdfa6dff8) 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 r4:85552f40 INFO: task kworker/1:36:15979 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a20be000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/1:37:15989 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:37 state:D stack:0 pid:15989 tgid:15989 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:df999d84 r9:00000002 r8:60000113 r7:829171a0 r6:df999d8c r5:8613b000 r4:8613b000 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8613b000 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df999e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85e17ec0 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8613b000 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa52000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8599cf8c r4:840d0a00 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:8599cf8c r4:840d0a00 [<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 r9:8613b000 r8:840d0a2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:840d0a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:840d0a00 r8:80278fec r7:df9e1e60 r6:85c23b00 r5:8613b000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf999fb0 to 0xdf999ff8) 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 r4:85b89c00 INFO: task kworker/1:37:15989 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a20be000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/1:38:15993 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:38 state:D stack:0 pid:15993 tgid:15993 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:df9f1d84 r9:00000002 r8:60000113 r7:829171a0 r6:df9f1d8c r5:8613a400 r4:8613a400 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8613a400 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df9f1e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098e80 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8613a400 r7:00000000 r6:83018600 r5:00001000 r4:7f05b000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa94000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf678c r4:85c23400 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85cf678c r4:85c23400 [<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 r9:8613a400 r8:85c2342c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85c23400 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c23400 r8:80278fec r7:df999e60 r6:8559a900 r5:8613a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf9f1fb0 to 0xdf9f1ff8) 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 r4:8614aac0 INFO: task kworker/1:38:15993 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a20be000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/1:39:15994 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:39 state:D stack:0 pid:15994 tgid:15994 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfa3dd84 r9:00000002 r8:60000113 r7:829171a0 r6:dfa3dd8c r5:86298000 r4:86298000 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:86298000 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfa3de08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f22a00 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86298000 r7:00000000 r6:83018600 r5:00001000 r4:7f260000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfb9f000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf378c r4:85c23b80 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85cf378c r4:85c23b80 [<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 r9:86298000 r8:85c23bac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85c23b80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c23b80 r8:80278fec r7:df999e60 r6:8576a380 r5:86298000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa3dfb0 to 0xdfa3dff8) 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 r4:8614aac0 INFO: task kworker/1:39:15994 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a20be000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/1:40:16005 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:16005 tgid:16005 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dffd9d84 r9:00000002 r8:60000013 r7:829171a0 r6:dffd9d8c r5:8629b000 r4:8629b000 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8629b000 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dffd9e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c19f40 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8629b000 r7:00000000 r6:83018600 r5:00001000 r4:7f053000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfb01000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8599db8c r4:84925700 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:8599db8c r4:84925700 [<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 r9:8629b000 r8:8492572c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:84925700 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84925700 r8:80278fec r7:dfa3de60 r6:84925000 r5:8629b000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdffd9fb0 to 0xdffd9ff8) 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 r4:8568e680 INFO: task kworker/1:40:16005 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a20be000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/1:41:16006 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:41 state:D stack:0 pid:16006 tgid:16006 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:df9e9d84 r9:00000002 r8:60000113 r7:829171a0 r6:df9e9d8c r5:8629bc00 r4:8629bc00 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8629bc00 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df9e9e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86057200 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8629bc00 r7:00000000 r6:83018600 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfaf5000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85cf1b8c r4:840d0b80 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85cf1b8c r4:840d0b80 [<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 r9:8629bc00 r8:840d0bac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:840d0b80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:840d0b80 r8:80278fec r7:dfa3de60 r6:84925600 r5:8629bc00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf9e9fb0 to 0xdf9e9ff8) 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 r4:85e99d40 INFO: task kworker/1:41:16006 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a20be000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/1:42:16008 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:42 state:D stack:0 pid:16008 tgid:16008 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfb31d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfb31d8c r5:8629c800 r4:8629c800 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8629c800 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb31e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85eb05c0 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8629c800 r7:00000000 r6:83018600 r5:00001000 r4:7f057000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfb37000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8574378c r4:84925680 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:8574378c r4:84925680 [<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 r9:8629c800 r8:849256ac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:84925680 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84925680 r8:80278fec r7:dfa3de60 r6:84925100 r5:8629c800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb31fb0 to 0xdfb31ff8) 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 r4:86169c00 INFO: task kworker/1:42:16008 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a20be000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:31:16016 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:31 state:D stack:0 pid:16016 tgid:16016 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a643a8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63414>] (__schedule) from [<81a643a8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfbe5d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfbe5d8c r5:8629e000 r4:8629e000 [<81a6437c>] (schedule) from [<81a64790>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8629e000 r4:8291719c [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64778>] (schedule_preempt_disabled) from [<81a67340>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66ff0>] (__mutex_lock.constprop.0) from [<81a67ae8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbe5e08 r4:00000000 [<81a67ad4>] (__mutex_lock_slowpath) from [<81a67b28>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a67aec>] (mutex_lock) from [<804ea014>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f22080 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8629e000 r7:00000000 r6:83018400 r5:00001000 r4:7f264000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfbd3000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85b0a78c r4:85795700 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85b0a78c r4:85795700 [<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 r9:8629e000 r8:8579572c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85795700 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85795700 r8:80278fec r7:e0075e60 r6:8484d600 r5:8629e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbe5fb0 to 0xdfbe5ff8) 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 r4:85f229c0 INFO: task kworker/0:31:16016 is blocked on a mutex likely owned by task kworker/0:19:15894. task:kworker/0:19 state:R running task stack:0 pid:15894 tgid:15894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63414>] (__schedule) from [<81a647dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83b6a400 r8:80200c04 r7:dfa01d54 r6:ffffffff r5:83b6a400 r4:00000000 [<81a6479c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfa01d20 to 0xdfa01d68) 1d20: a20be000 eb82f000 00000001 80239bf8 7f049000 00000001 82acb1c4 82aca5a0 1d40: 7f049000 eb82f000 8280c9b4 dfa01d9c dfa01da0 dfa01d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9dd8>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9b54>] (__purge_vmap_area_lazy) from [<804ea190>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfa01dc0 r5:dfa01e08 r4:dfa01dc0 [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9fac>] (_vm_unmap_aliases) from [<804eddf4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86098740 r4:00000000 [<804edc88>] (vfree) from [<80558b40>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83b6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80558b10>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df957000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859c478c r4:830ba380 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859c478c r4:830ba380 [<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 r9:83b6a400 r8:830ba3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:830ba380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830ba380 r8:80278fec r7:e8221e60 r6:830ba700 r5:83b6a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa01fb0 to 0xdfa01ff8) 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 r4:8578a1c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings 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: [<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:000f0013 r5:600f0093 r4:82252424 [<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) r5:00000001 r4:00000001 [<8021f8bc>] (dump_stack) from [<81a4d02c>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a4cecc>] (nmi_cpu_backtrace) from [<81a4d178>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8280c690 r5:8281ae34 r4:ffffffff [<81a4d048>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:8281ba28 r8:8280c810 r7:00028515 r6:00007d38 r5:82abf7d4 r4:8334480c [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fb08>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fb08>] (check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fb08>] (watchdog+0x5d0/0x850 kernel/hung_task.c:495) [<8037f538>] (watchdog) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:8037f538 r7:830cfd80 r6:830cfd80 r5:8321c800 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 r4:833cb7c0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2820 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 : [<81a6d27c>] lr : [<80a8ee08>] psr: 60000113 sp : ead9deb0 ip : ead9dec0 fp : ead9debc r10: 82959554 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 829594b8 r5 : 00000000 r4 : 00000001 r3 : 0000298c r2 : 00000000 r1 : 60000113 r0 : 84251c40 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 854ecb00 DAC: fffffffd Call trace: [<81a6d254>] (_raw_spin_unlock_irqrestore) from [<80a8ee08>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81a6d254>] (_raw_spin_unlock_irqrestore) from [<80a8ee08>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81a6d254>] (_raw_spin_unlock_irqrestore) from [<80a8ee08>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80a8ede8>] (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 r5:83b4c800 r4:829594b8 [<802e37e0>] (nbcon_kthread_func) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:829594b8 r8:802e37e0 r7:84beb100 r6:84beb100 r5:83b4c800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead9dfb0 to 0xead9dff8) 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 r4:84291d00