INFO: task kworker/0:99:4581 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:99 state:D stack:0 pid:4581 tgid:4581 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea365d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea365d8c r5:84ffe000 r4:84ffe000 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84ffe000 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea365e08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:852a6f80 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84ffe000 r7:00000000 r6:83018400 r5:00001000 r4:7f00d000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfb69000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8527d38c r4:852a3800 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8527d38c r4:852a3800 [<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 r9:84ffe000 r8:852a382c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:852a3800 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852a3800 r8:80278fec r7:e4239e60 r6:852a3880 r5:84ffe000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea365fb0 to 0xea365ff8) 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 r4:852a7440 INFO: task kworker/0:99:4581 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a2fef8>] (call_with_stack) from [<80200bec>] (__irq_svc+0x8c/0xbc arch/arm/kernel/entry-armv.S:228) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 INFO: task kworker/0:104:4599 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:104 state:D stack:0 pid:4599 tgid:4599 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea4b9d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea4b9d8c r5:84eda400 r4:84eda400 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84eda400 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea4b9e08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84e34e00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84eda400 r7:00000000 r6:83018400 r5:00001000 r4:7f047000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea8d1000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859fa78c r4:852a3e00 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859fa78c r4:852a3e00 [<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 r9:84eda400 r8:852a3e2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:852a3e00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852a3e00 r8:80278fec r7:ea421e60 r6:852a3e80 r5:84eda400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea4b9fb0 to 0xea4b9ff8) 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 r4:8529e840 INFO: task kworker/0:104:4599 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 INFO: task kworker/0:111:4624 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:111 state:D stack:0 pid:4624 tgid:4624 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e82c1d84 r9:00000002 r8:60000113 r7:829171a0 r6:e82c1d8c r5:84913c00 r4:84913c00 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84913c00 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e82c1e08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84f5f4c0 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84913c00 r7:00000000 r6:83018400 r5:00001000 r4:7f043000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea7cf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859fab8c r4:852a4680 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859fab8c r4:852a4680 [<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 r9:84913c00 r8:852a46ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:852a4680 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852a4680 r8:80278fec r7:ea4b9e60 r6:852a4700 r5:84913c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe82c1fb0 to 0xe82c1ff8) 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 r4:85298b80 INFO: task kworker/0:111:4624 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 INFO: task kworker/0:112:4643 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:112 state:D stack:0 pid:4643 tgid:4643 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea425d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea425d8c r5:84916c00 r4:84916c00 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84916c00 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea425e08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:852ba1c0 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84916c00 r7:00000000 r6:83018400 r5:00001000 r4:7f03f000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea68d000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859f938c r4:852a4780 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859f938c r4:852a4780 [<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 r9:84916c00 r8:852a47ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:852a4780 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852a4780 r8:80278fec r7:ea4b9e60 r6:852a4800 r5:84916c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea425fb0 to 0xea425ff8) 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 r4:84a84640 INFO: task kworker/0:112:4643 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 INFO: task kworker/0:113:4645 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:113 state:D stack:0 pid:4645 tgid:4645 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea445d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea445d8c r5:84916000 r4:84916000 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84916000 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea445e08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84f5fd80 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84916000 r7:00000000 r6:83018400 r5:00001000 r4:7f03b000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea4af000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:84934f8c r4:852a4880 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84934f8c r4:852a4880 [<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 r9:84916000 r8:852a48ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:852a4880 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852a4880 r8:80278fec r7:ea4b9e60 r6:852a4900 r5:84916000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea445fb0 to 0xea445ff8) 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 r4:84a82fc0 INFO: task kworker/0:113:4645 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 INFO: task kworker/0:114:4651 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:114 state:D stack:0 pid:4651 tgid:4651 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea449d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea449d8c r5:84915400 r4:84915400 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84915400 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea449e08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84ad3980 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84915400 r7:00000000 r6:83018400 r5:00001000 r4:7f02f000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea3af000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859f978c r4:852a4a00 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859f978c r4:852a4a00 [<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 r9:84915400 r8:852a4a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:852a4a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852a4a00 r8:80278fec r7:ea445e60 r6:852a4a80 r5:84915400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea449fb0 to 0xea449ff8) 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 r4:84a83540 INFO: task kworker/0:114:4651 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 INFO: task kworker/0:115:4654 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:115 state:D stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea45dd84 r9:00000002 r8:60000113 r7:829171a0 r6:ea45dd8c r5:84914800 r4:84914800 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84914800 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea45de08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85287a40 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84914800 r7:00000000 r6:83018400 r5:00001000 r4:7f02d000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfcbb000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:859f838c r4:852a4b00 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:859f838c r4:852a4b00 [<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 r9:84914800 r8:852a4b2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:852a4b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852a4b00 r8:80278fec r7:ea445e60 r6:852a4b80 r5:84914800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea45dfb0 to 0xea45dff8) 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 r4:84a83a00 INFO: task kworker/0:115:4654 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 INFO: task kworker/0:116:4656 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:116 state:D stack:0 pid:4656 tgid:4656 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea44dd84 r9:00000002 r8:60000113 r7:829171a0 r6:ea44dd8c r5:84912400 r4:84912400 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84912400 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea44de08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8598d0c0 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84912400 r7:00000000 r6:83018400 r5:00001000 r4:7f00b000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfab7000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8493638c r4:852a4c00 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8493638c r4:852a4c00 [<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 r9:84912400 r8:852a4c2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:852a4c00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852a4c00 r8:80278fec r7:ea445e60 r6:852a4c80 r5:84912400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea44dfb0 to 0xea44dff8) 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 r4:84a83940 INFO: task kworker/0:116:4656 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 INFO: task kworker/0:117:4657 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:117 state:D stack:0 pid:4657 tgid:4657 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea46dd84 r9:00000002 r8:60000013 r7:829171a0 r6:ea46dd8c r5:84910c00 r4:84910c00 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84910c00 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea46de08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:852a6bc0 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84910c00 r7:00000000 r6:83018400 r5:00001000 r4:7f02b000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfc33000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8524ff8c r4:852a4d00 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8524ff8c r4:852a4d00 [<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 r9:84910c00 r8:852a4d2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:852a4d00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852a4d00 r8:80278fec r7:ea445e60 r6:852a4d80 r5:84910c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea46dfb0 to 0xea46dff8) 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 r4:84a837c0 INFO: task kworker/0:117:4657 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 INFO: task kworker/0:118:4659 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:118 state:D stack:0 pid:4659 tgid:4659 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfc55d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfc55d8c r5:8538e000 r4:8538e000 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8538e000 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfc55e08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:853121c0 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8538e000 r7:00000000 r6:83018400 r5:00001000 r4:7f041000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea5e3000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8493578c r4:852a4e00 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8493578c r4:852a4e00 [<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 r9:8538e000 r8:852a4e2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:852a4e00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852a4e00 r8:80278fec r7:ea445e60 r6:852a4e80 r5:8538e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfc55fb0 to 0xdfc55ff8) 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 r4:84a83b40 INFO: task kworker/0:118:4659 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:119:4662 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:119 state:D stack:0 pid:4662 tgid:4662 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea31dd84 r9:00000002 r8:60000113 r7:829171a0 r6:ea31dd8c r5:84918000 r4:84918000 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84918000 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea31de08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8598dd40 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84918000 r7:00000000 r6:83018400 r5:00001000 r4:7f003000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa05000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85844f8c r4:852a4f00 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85844f8c r4:852a4f00 [<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 r9:84918000 r8:852a4f2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:852a4f00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852a4f00 r8:80278fec r7:ea445e60 r6:851e2000 r5:84918000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea31dfb0 to 0xea31dff8) 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 r4:84a83e40 INFO: task kworker/0:119:4662 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:122:4668 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:122 state:D stack:0 pid:4668 tgid:4668 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea4c1d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea4c1d8c r5:8491a400 r4:8491a400 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8491a400 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea4c1e08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1c2c0 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491a400 r7:00000000 r6:83018400 r5:00001000 r4:7f039000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea317000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8527eb8c r4:851e2280 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8527eb8c r4:851e2280 [<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 r9:8491a400 r8:851e22ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2280 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2280 r8:80278fec r7:ea311e60 r6:851e2300 r5:8491a400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea4c1fb0 to 0xea4c1ff8) 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 r4:84d84080 INFO: task kworker/0:122:4668 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:123:4671 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:123 state:D stack:0 pid:4671 tgid:4671 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea535d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea535d8c r5:8491c800 r4:8491c800 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8491c800 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea535e08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a4f100 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491c800 r7:00000000 r6:83018400 r5:00001000 r4:7f037000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e4247000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8527c38c r4:851e2380 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8527c38c r4:851e2380 [<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 r9:8491c800 r8:851e23ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2380 r8:80278fec r7:ea311e60 r6:851e2400 r5:8491c800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea535fb0 to 0xea535ff8) 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 r4:84d84080 INFO: task kworker/0:123:4671 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:124:4672 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:124 state:D stack:0 pid:4672 tgid:4672 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e82c9d84 r9:00000002 r8:60000113 r7:829171a0 r6:e82c9d8c r5:8491bc00 r4:8491bc00 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8491bc00 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e82c9e08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cac0 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491bc00 r7:00000000 r6:83018400 r5:00001000 r4:7f035000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e013d000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85847f8c r4:851e2480 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85847f8c r4:851e2480 [<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 r9:8491bc00 r8:851e24ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2480 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2480 r8:80278fec r7:ea311e60 r6:851e2500 r5:8491bc00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe82c9fb0 to 0xe82c9ff8) 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 r4:84e34580 INFO: task kworker/0:124:4672 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/1:125:4926 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:125 state:D stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a641c8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63234>] (__schedule) from [<81a641c8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea851d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea851d8c r5:849f6c00 r4:849f6c00 [<81a6419c>] (schedule) from [<81a645b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:849f6c00 r4:8291719c [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64598>] (schedule_preempt_disabled) from [<81a67160>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e10>] (__mutex_lock.constprop.0) from [<81a67908>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea851e08 r4:00000000 [<81a678f4>] (__mutex_lock_slowpath) from [<81a67948>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6790c>] (mutex_lock) from [<804e9e3c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:852bacc0 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:849f6c00 r7:00000000 r6:83018600 r5:00001000 r4:7f03d000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea529000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:853df78c r4:849a9e80 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:853df78c r4:849a9e80 [<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 r9:849f6c00 r8:849a9eac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:849a9e80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:849a9e80 r8:80278fec r7:ea781e60 r6:849a9800 r5:849f6c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea851fb0 to 0xea851ff8) 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 r4:849ac100 INFO: task kworker/1:125:4926 is blocked on a mutex likely owned by task kworker/0:125:4675. task:kworker/0:125 state:R running task stack:0 pid:4675 tgid:4675 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63234>] (__schedule) from [<81a645fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8491d400 r8:80200c04 r7:ea471d54 r6:ffffffff r5:8491d400 r4:00000000 [<81a645bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea471d20 to 0xea471d68) 1d20: eb7fd000 eba31000 00000001 80239bf8 7f00b000 00000001 82acb1c4 82aca5a0 1d40: 7f00b000 eba31000 8280c9b4 ea471d9c ea471da0 ea471d70 80230af0 80239c10 1d60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9c00>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e997c>] (__purge_vmap_area_lazy) from [<804e9fb8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea471dc0 r5:ea471e08 r4:ea471dc0 [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9dd4>] (_vm_unmap_aliases) from [<804edc1c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a1cb00 r4:00000000 [<804edab0>] (vfree) from [<80558908>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8491d400 r7:00000000 r6:83018400 r5:00001000 r4:7f033000 [<805588d8>] (execmem_free) from [<803c5e38>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00bf000 [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5e28>] (bpf_jit_free_exec) from [<803c6218>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c61b0>] (bpf_jit_free) from [<803c72c0>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85832b8c r4:851e2580 [<803c7180>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85832b8c r4:851e2580 [<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 r9:8491d400 r8:851e25ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:851e2580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:851e2580 r8:80278fec r7:ea311e60 r6:851e2600 r5:8491d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea471fb0 to 0xea471ff8) 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 r4:84e34700 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 r6:00070013 r5:60070093 r4:82252488 [<80201b08>] (show_stack) from [<8021f93c>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b08>] (show_stack) from [<8021f93c>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021f8cc>] (dump_stack_lvl) from [<8021f960>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000001 r4:00000001 [<8021f948>] (dump_stack) from [<81a4ce4c>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a4ccec>] (nmi_cpu_backtrace) from [<81a4cf98>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8280c690 r5:8281ae34 r4:ffffffff [<81a4ce68>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:8281ba28 r8:8280c810 r7:00027f27 r6:00007c3c r5:82abf7d4 r4:85b7750c [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037f9a8>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037f9a8>] (check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037f9a8>] (watchdog+0x5d0/0x850 kernel/hung_task.c:495) [<8037f3d8>] (watchdog) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:8037f3d8 r7:83844000 r6:83844000 r5:832e2400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:833c9900 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2821 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 : [<81a6d09c>] lr : [<80a8eea8>] psr: 60000013 sp : eaeb1eb0 ip : eaeb1ec0 fp : eaeb1ebc r10: 82959554 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 829594b8 r5 : 00000000 r4 : 00000001 r3 : 00000903 r2 : 00000000 r1 : 60000013 r0 : 840f9040 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84d35f00 DAC: fffffffd Call trace: [<81a6d074>] (_raw_spin_unlock_irqrestore) from [<80a8eea8>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81a6d074>] (_raw_spin_unlock_irqrestore) from [<80a8eea8>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81a6d074>] (_raw_spin_unlock_irqrestore) from [<80a8eea8>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80a8ee88>] (pl011_console_device_unlock) from [<802e3660>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1142) [<802e35d8>] (nbcon_emit_one) from [<802e3880>] (nbcon_kthread_func+0x1a8/0x2a4 kernel/printk/nbcon.c:1229) r6:8280c690 r5:84ced400 r4:829594b8 [<802e36d8>] (nbcon_kthread_func) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:829594b8 r8:802e36d8 r7:84705300 r6:84705300 r5:84ced400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaeb1fb0 to 0xeaeb1ff8) 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 r4:84c4cd80