INFO: task kworker/0:0:12029 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:0 state:D stack:0 pid:12029 tgid:12029 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a641e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63254>] (__schedule) from [<81a641e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfb0dd84 r9:00000002 r8:60000013 r7:829171a0 r6:dfb0dd8c r5:85b2e000 r4:85b2e000 [<81a641bc>] (schedule) from [<81a645d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:85b2e000 r4:8291719c [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e30>] (__mutex_lock.constprop.0) from [<81a67928>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb0de08 r4:00000000 [<81a67914>] (__mutex_lock_slowpath) from [<81a67968>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6792c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85555080 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85b2e000 r7:00000000 r6:83018400 r5:00001000 r4:7f28a000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfab9000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:849cab8c r4:85b40c80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:849cab8c r4:85b40c80 [<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 r9:85b2e000 r8:85b40cac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85b40c80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b40c80 r8:80278fec r7:ea325e60 r6:866b2700 r5:85b2e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb0dfb0 to 0xdfb0dff8) 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 r4:85c9cdc0 INFO: task kworker/0:0:12029 is blocked on a mutex likely owned by task kworker/0:3:99. task:kworker/0:3 state:R running task stack:0 pid:99 tgid:99 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a6461c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83880000 r8:80200c04 r7:df985d54 r6:ffffffff r5:83880000 r4:00000000 [<81a645dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdf985d20 to 0xdf985d68) 5d20: c8e7a000 ff698000 00000001 80239bf8 7f284000 00000001 82acb1c4 82aca5a0 5d40: 7f284000 ff698000 8280c9b4 df985d9c df985da0 df985d70 80230af0 80239c10 5d60: 80070013 ffffffff r5:80070013 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:df985dc0 r5:df985e08 r4:df985dc0 [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:89ba5ac0 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83880000 r7:00000000 r6:83018400 r5:00001000 r4:7f292000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfafb000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85f5db8c r4:833a9e80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85f5db8c r4:833a9e80 [<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 r9:83880000 r8:833a9eac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:833a9e80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:833a9e80 r8:80278fec r7:df98de60 r6:833a9f00 r5:83880000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf985fb0 to 0xdf985ff8) 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 r4:8390edc0 INFO: task kworker/0:16:12154 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:16 state:D stack:0 pid:12154 tgid:12154 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a641e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63254>] (__schedule) from [<81a641e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfed5d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfed5d8c r5:856e1800 r4:856e1800 [<81a641bc>] (schedule) from [<81a645d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:856e1800 r4:8291719c [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e30>] (__mutex_lock.constprop.0) from [<81a67928>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfed5e08 r4:00000000 [<81a67914>] (__mutex_lock_slowpath) from [<81a67968>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6792c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a06b40 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:856e1800 r7:00000000 r6:83018400 r5:00001000 r4:7f290000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfaf9000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:84d0ab8c r4:85f74900 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d0ab8c r4:85f74900 [<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 r9:856e1800 r8:85f7492c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85f74900 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85f74900 r8:80278fec r7:dfbbde60 r6:85f74e00 r5:856e1800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfed5fb0 to 0xdfed5ff8) 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 r4:8685d2c0 INFO: task kworker/0:16:12154 is blocked on a mutex likely owned by task kworker/0:3:99. task:kworker/0:3 state:R running task stack:0 pid:99 tgid:99 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a6461c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83880000 r8:80200c04 r7:df985d54 r6:ffffffff r5:83880000 r4:00000000 [<81a645dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdf985d20 to 0xdf985d68) 5d20: c8e7a000 ff698000 00000001 80239bf8 7f284000 00000001 82acb1c4 82aca5a0 5d40: 7f284000 ff698000 8280c9b4 df985d9c df985da0 df985d70 80230af0 80239c10 5d60: 80070013 ffffffff r5:80070013 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:df985dc0 r5:df985e08 r4:df985dc0 [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:89ba5ac0 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83880000 r7:00000000 r6:83018400 r5:00001000 r4:7f292000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfafb000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85f5db8c r4:833a9e80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85f5db8c r4:833a9e80 [<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 r9:83880000 r8:833a9eac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:833a9e80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:833a9e80 r8:80278fec r7:df98de60 r6:833a9f00 r5:83880000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf985fb0 to 0xdf985ff8) 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 r4:8390edc0 INFO: task kworker/1:16:13450 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:16 state:D stack:0 pid:13450 tgid:13450 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a641e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63254>] (__schedule) from [<81a641e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea485d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea485d8c r5:84fb8000 r4:84fb8000 [<81a641bc>] (schedule) from [<81a645d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84fb8000 r4:8291719c [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e30>] (__mutex_lock.constprop.0) from [<81a67928>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea485e08 r4:00000000 [<81a67914>] (__mutex_lock_slowpath) from [<81a67968>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6792c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85555500 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:84fb8000 r7:00000000 r6:83018600 r5:00001000 r4:7f28c000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfabf000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:849c938c r4:84d7d400 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:849c938c r4:84d7d400 [<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 r9:84fb8000 r8:84d7d42c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:84d7d400 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84d7d400 r8:80278fec r7:dfb29e60 r6:86542500 r5:84fb8000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea485fb0 to 0xea485ff8) 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 r4:857ed880 INFO: task kworker/1:16:13450 is blocked on a mutex likely owned by task kworker/0:3:99. task:kworker/0:3 state:R running task stack:0 pid:99 tgid:99 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a6461c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83880000 r8:80200c04 r7:df985d54 r6:ffffffff r5:83880000 r4:00000000 [<81a645dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdf985d20 to 0xdf985d68) 5d20: cb344000 ff698000 00000001 80239bf8 7f284000 00000001 82acb1c4 82aca5a0 5d40: 7f284000 ff698000 8280c9b4 df985d9c df985da0 df985d70 80230af0 80239c10 5d60: 80070013 ffffffff r5:80070013 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:df985dc0 r5:df985e08 r4:df985dc0 [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:89ba5ac0 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83880000 r7:00000000 r6:83018400 r5:00001000 r4:7f292000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfafb000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85f5db8c r4:833a9e80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85f5db8c r4:833a9e80 [<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 r9:83880000 r8:833a9eac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:833a9e80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:833a9e80 r8:80278fec r7:df98de60 r6:833a9f00 r5:83880000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf985fb0 to 0xdf985ff8) 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 r4:8390edc0 INFO: task kworker/1:17:13523 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:17 state:D stack:0 pid:13523 tgid:13523 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a641e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63254>] (__schedule) from [<81a641e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea4d5d84 r9:00000002 r8:600f0013 r7:829171a0 r6:ea4d5d8c r5:85443000 r4:85443000 [<81a641bc>] (schedule) from [<81a645d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:85443000 r4:8291719c [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e30>] (__mutex_lock.constprop.0) from [<81a67928>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea4d5e08 r4:00000000 [<81a67914>] (__mutex_lock_slowpath) from [<81a67968>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6792c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85555ac0 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85443000 r7:00000000 r6:83018600 r5:00001000 r4:7f280000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfaa7000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:849c8f8c r4:86770480 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:849c8f8c r4:86770480 [<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 r9:85443000 r8:867704ac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:86770480 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:86770480 r8:80278fec r7:ea485e60 r6:84a44080 r5:85443000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea4d5fb0 to 0xea4d5ff8) 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 r4:85b4ca40 INFO: task kworker/1:17:13523 is blocked on a mutex likely owned by task kworker/0:3:99. task:kworker/0:3 state:R running task stack:0 pid:99 tgid:99 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a6461c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83880000 r8:80200c04 r7:df985d54 r6:ffffffff r5:83880000 r4:00000000 [<81a645dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdf985d20 to 0xdf985d68) 5d20: cbab5000 ff698000 00000001 80239bf8 7f284000 00000001 82acb1c4 82aca5a0 5d40: 7f284000 ff698000 8280c9b4 df985d9c df985da0 df985d70 80230af0 80239c10 5d60: 80070013 ffffffff r5:80070013 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:df985dc0 r5:df985e08 r4:df985dc0 [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:89ba5ac0 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83880000 r7:00000000 r6:83018400 r5:00001000 r4:7f292000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfafb000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85f5db8c r4:833a9e80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85f5db8c r4:833a9e80 [<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 r9:83880000 r8:833a9eac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:833a9e80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:833a9e80 r8:80278fec r7:df98de60 r6:833a9f00 r5:83880000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf985fb0 to 0xdf985ff8) 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 r4:8390edc0 INFO: task kworker/1:18:13531 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:18 state:D stack:0 pid:13531 tgid:13531 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a641e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63254>] (__schedule) from [<81a641e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfb11d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfb11d8c r5:8643e000 r4:8643e000 [<81a641bc>] (schedule) from [<81a645d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8643e000 r4:8291719c [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e30>] (__mutex_lock.constprop.0) from [<81a67928>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb11e08 r4:00000000 [<81a67914>] (__mutex_lock_slowpath) from [<81a67968>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6792c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8949fe80 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8643e000 r7:00000000 r6:83018600 r5:00001000 r4:7f244000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dff7d000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:849cfb8c r4:85d2e500 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:849cfb8c r4:85d2e500 [<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 r9:8643e000 r8:85d2e52c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85d2e500 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d2e500 r8:80278fec r7:ea485e60 r6:85d2e980 r5:8643e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb11fb0 to 0xdfb11ff8) 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 r4:866a5c00 INFO: task kworker/1:18:13531 is blocked on a mutex likely owned by task kworker/0:3:99. task:kworker/0:3 state:R running task stack:0 pid:99 tgid:99 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a6461c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83880000 r8:80200c04 r7:df985d54 r6:ffffffff r5:83880000 r4:00000000 [<81a645dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdf985d20 to 0xdf985d68) 5d20: cdbf7000 ff698000 00000001 80239bf8 7f284000 00000001 82acb1c4 82aca5a0 5d40: 7f284000 ff698000 8280c9b4 df985d9c df985da0 df985d70 80230af0 80239c10 5d60: 80070013 ffffffff r5:80070013 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:df985dc0 r5:df985e08 r4:df985dc0 [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:89ba5ac0 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83880000 r7:00000000 r6:83018400 r5:00001000 r4:7f292000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfafb000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85f5db8c r4:833a9e80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85f5db8c r4:833a9e80 [<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 r9:83880000 r8:833a9eac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:833a9e80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:833a9e80 r8:80278fec r7:df98de60 r6:833a9f00 r5:83880000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf985fb0 to 0xdf985ff8) 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 r4:8390edc0 INFO: task kworker/1:19:13565 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:19 state:D stack:0 pid:13565 tgid:13565 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a641e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63254>] (__schedule) from [<81a641e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfbadd84 r9:00000002 r8:60000013 r7:829171a0 r6:dfbadd8c r5:8643bc00 r4:8643bc00 [<81a641bc>] (schedule) from [<81a645d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8643bc00 r4:8291719c [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e30>] (__mutex_lock.constprop.0) from [<81a67928>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbade08 r4:00000000 [<81a67914>] (__mutex_lock_slowpath) from [<81a67968>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6792c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8948f280 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8643bc00 r7:00000000 r6:83018600 r5:00001000 r4:7f003000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00af000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8492f38c r4:867cf600 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:8492f38c r4:867cf600 [<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 r9:8643bc00 r8:867cf62c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:867cf600 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:867cf600 r8:80278fec r7:dfb11e60 r6:867cf080 r5:8643bc00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbadfb0 to 0xdfbadff8) 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 r4:85a8d2c0 INFO: task kworker/1:19:13565 is blocked on a mutex likely owned by task kworker/0:3:99. task:kworker/0:3 state:R running task stack:0 pid:99 tgid:99 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a6461c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83880000 r8:80200c04 r7:df985d54 r6:ffffffff r5:83880000 r4:00000000 [<81a645dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdf985d20 to 0xdf985d68) 5d20: cdbf7000 ff698000 00000001 80239bf8 7f284000 00000001 82acb1c4 82aca5a0 5d40: 7f284000 ff698000 8280c9b4 df985d9c df985da0 df985d70 80230af0 80239c10 5d60: 80070013 ffffffff r5:80070013 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:df985dc0 r5:df985e08 r4:df985dc0 [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:89ba5ac0 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83880000 r7:00000000 r6:83018400 r5:00001000 r4:7f292000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfafb000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85f5db8c r4:833a9e80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85f5db8c r4:833a9e80 [<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 r9:83880000 r8:833a9eac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:833a9e80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:833a9e80 r8:80278fec r7:df98de60 r6:833a9f00 r5:83880000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf985fb0 to 0xdf985ff8) 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 r4:8390edc0 INFO: task kworker/1:20:13567 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:20 state:D stack:0 pid:13567 tgid:13567 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a641e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63254>] (__schedule) from [<81a641e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dffc5d84 r9:00000002 r8:60000113 r7:829171a0 r6:dffc5d8c r5:8643c800 r4:8643c800 [<81a641bc>] (schedule) from [<81a645d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8643c800 r4:8291719c [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a645b8>] (schedule_preempt_disabled) from [<81a67180>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66e30>] (__mutex_lock.constprop.0) from [<81a67928>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dffc5e08 r4:00000000 [<81a67914>] (__mutex_lock_slowpath) from [<81a67968>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a6792c>] (mutex_lock) from [<804e9dd4>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85555440 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8643c800 r7:00000000 r6:83018600 r5:00001000 r4:7f27e000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfaa1000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:849c8b8c r4:867cf780 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:849c8b8c r4:867cf780 [<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 r9:8643c800 r8:867cf7ac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:867cf780 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:867cf780 r8:80278fec r7:ea4d5e60 r6:89b81200 r5:8643c800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdffc5fb0 to 0xdffc5ff8) 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 r4:85ac9580 INFO: task kworker/1:20:13567 is blocked on a mutex likely owned by task kworker/0:3:99. task:kworker/0:3 state:R running task stack:0 pid:99 tgid:99 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63254>] (__schedule) from [<81a6461c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:83880000 r8:80200c04 r7:df985d54 r6:ffffffff r5:83880000 r4:00000000 [<81a645dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdf985d20 to 0xdf985d68) 5d20: cf204000 ff698000 00000001 80239bf8 7f284000 00000001 82acb1c4 82aca5a0 5d40: 7f284000 ff698000 8280c9b4 df985d9c df985da0 df985d70 80230af0 80239c10 5d60: 80070013 ffffffff r5:80070013 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e9b98>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9914>] (__purge_vmap_area_lazy) from [<804e9f50>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:df985dc0 r5:df985e08 r4:df985dc0 [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e9d6c>] (_vm_unmap_aliases) from [<804edbb4>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:89ba5ac0 r4:00000000 [<804eda48>] (vfree) from [<805588a0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83880000 r7:00000000 r6:83018400 r5:00001000 r4:7f292000 [<80558870>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfafb000 [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5dc0>] (bpf_jit_free_exec) from [<803c61b0>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6148>] (bpf_jit_free) from [<803c7258>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85f5db8c r4:833a9e80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85f5db8c r4:833a9e80 [<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 r9:83880000 r8:833a9eac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:833a9e80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:833a9e80 r8:80278fec r7:df98de60 r6:833a9f00 r5:83880000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf985fb0 to 0xdf985ff8) 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 r4:8390edc0 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 r6:00030013 r5:60030093 r4:822523c8 [<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 [<81a4ce6c>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a4cd0c>] (nmi_cpu_backtrace) from [<81a4cfb8>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8280c690 r5:8281ae34 r4:ffffffff [<81a4ce88>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:8281ba28 r8:8280c810 r7:0003040c r6:00007e4d r5:82abf7d4 r4:8647820c [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037f940>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037f940>] (check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037f940>] (watchdog+0x5d0/0x850 kernel/hung_task.c:495) [<8037f370>] (watchdog) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:8037f370 r7:832a2b00 r6:832a2b00 r5:832e1800 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 r4:833794c0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2823 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194 LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline] LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603 pc : [<81a6d0bc>] lr : [<80a8eea8>] psr: 60070113 sp : eae85eb0 ip : eae85ec0 fp : eae85ebc r10: 82959554 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 829594b8 r5 : 00000000 r4 : 00000001 r3 : 000010cd r2 : 00000000 r1 : 60070113 r0 : 842b9c40 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 864ccc80 DAC: fffffffd Call trace: [<81a6d094>] (_raw_spin_unlock_irqrestore) from [<80a8eea8>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81a6d094>] (_raw_spin_unlock_irqrestore) from [<80a8eea8>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81a6d094>] (_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 [<802e3600>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1142) [<802e3578>] (nbcon_emit_one) from [<802e3820>] (nbcon_kthread_func+0x1a8/0x2a4 kernel/printk/nbcon.c:1229) r6:8280c690 r5:84034800 r4:829594b8 [<802e3678>] (nbcon_kthread_func) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:829594b8 r8:802e3678 r7:84763700 r6:84763700 r5:84034800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeae85fb0 to 0xeae85ff8) 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 r4:84aa0240