INFO: task kworker/1:4:3959 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:0 pid:3959 tgid:3959 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:df9f5d84 r9:00000002 r8:60000013 r7:829171a0 r6:df9f5d8c r5:84250000 r4:84250000 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84250000 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df9f5e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:85b80600 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:84250000 r7:00000000 r6:83018600 r5:00001000 r4:7f27a000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e003d000 [<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) r5:854b838c r4:858eb780 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:854b838c r4:858eb780 [<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 r9:84250000 r8:858eb7ac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:858eb780 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858eb780 r8:80278fec r7:eb925e60 r6:858eed80 r5:84250000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf9f5fb0 to 0xdf9f5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:85af7c00 INFO: task kworker/1:4:3959 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b35cd000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 INFO: task kworker/1:11:7208 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:11 state:D stack:0 pid:7208 tgid:7208 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e011dd84 r9:00000002 r8:60000113 r7:829171a0 r6:e011dd8c r5:83afec00 r4:83afec00 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:83afec00 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e011de08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:854663c0 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83afec00 r7:00000000 r6:83018600 r5:00001000 r4:7f24a000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df943000 [<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) r5:856eab8c r4:8689d000 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:856eab8c r4:8689d000 [<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 r9:83afec00 r8:8689d02c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:8689d000 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8689d000 r8:80278fec r7:dfac5e60 r6:8689d300 r5:83afec00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe011dfb0 to 0xe011dff8) 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 r4:85b9c240 INFO: task kworker/1:11:7208 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b370a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 INFO: task kworker/1:61:10007 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:61 state:D stack:0 pid:10007 tgid:10007 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfba5d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfba5d8c r5:85858c00 r4:85858c00 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:85858c00 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfba5e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:85466140 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85858c00 r7:00000000 r6:83018600 r5:00001000 r4:7f29c000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea3d1000 [<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) r5:856e9b8c r4:8661eb80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:856e9b8c r4:8661eb80 [<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 r9:85858c00 r8:8661ebac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:8661eb80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8661eb80 r8:80278fec r7:ea705e60 r6:8570eb80 r5:85858c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfba5fb0 to 0xdfba5ff8) 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 r4:86afef80 INFO: task kworker/1:61:10007 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b3951000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 INFO: task kworker/0:49:10017 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:49 state:D stack:0 pid:10017 tgid:10017 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e008dd84 r9:00000002 r8:60000113 r7:829171a0 r6:e008dd8c r5:84f72400 r4:84f72400 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84f72400 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e008de08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:85886f80 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f72400 r7:00000000 r6:83018400 r5:00001000 r4:7f274000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfc4f000 [<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) r5:84d3e38c r4:858a7b00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3e38c r4:858a7b00 [<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 r9:84f72400 r8:858a7b2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7b00 r8:80278fec r7:dfb75e60 r6:858a7b80 r5:84f72400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe008dfb0 to 0xe008dff8) 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 r4:859e1340 INFO: task kworker/0:49:10017 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b3951000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 INFO: task kworker/1:64:10026 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:64 state:D stack:0 pid:10026 tgid:10026 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e01d9d84 r9:00000002 r8:60000113 r7:829171a0 r6:e01d9d8c r5:8585bc00 r4:8585bc00 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8585bc00 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e01d9e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:85a72640 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8585bc00 r7:00000000 r6:83018600 r5:00001000 r4:7f272000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfbb7000 [<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) r5:8547878c r4:84d54680 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:8547878c r4:84d54680 [<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 r9:8585bc00 r8:84d546ac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:84d54680 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84d54680 r8:80278fec r7:dfba5e60 r6:84d54480 r5:8585bc00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe01d9fb0 to 0xe01d9ff8) 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 r4:863f2ac0 INFO: task kworker/1:64:10026 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b3ba6000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 INFO: task kworker/0:50:10036 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:50 state:D stack:0 pid:10036 tgid:10036 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfa71d84 r9:00000002 r8:60000013 r7:829171a0 r6:dfa71d8c r5:85525400 r4:85525400 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:85525400 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfa71e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:85b80740 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85525400 r7:00000000 r6:83018400 r5:00001000 r4:7f286000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0201000 [<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) r5:84d9c78c r4:858a7000 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d9c78c r4:858a7000 [<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 r9:85525400 r8:858a702c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7000 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7000 r8:80278fec r7:e008de60 r6:858a7080 r5:85525400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa71fb0 to 0xdfa71ff8) 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 r4:85886e00 INFO: task kworker/0:50:10036 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b3d72000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 INFO: task kworker/0:51:10044 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:51 state:D stack:0 pid:10044 tgid:10044 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e0091d84 r9:00000002 r8:60000113 r7:829171a0 r6:e0091d8c r5:84f71800 r4:84f71800 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84f71800 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e0091e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:8688b0c0 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f71800 r7:00000000 r6:83018400 r5:00001000 r4:7f29a000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e8377000 [<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) r5:856eef8c r4:858a7180 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:856eef8c r4:858a7180 [<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 r9:84f71800 r8:858a71ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7180 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7180 r8:80278fec r7:dfa71e60 r6:858a7200 r5:84f71800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0091fb0 to 0xe0091ff8) 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 r4:85886740 INFO: task kworker/0:51:10044 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b3d72000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 INFO: task kworker/1:65:10048 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:65 state:D stack:0 pid:10048 tgid:10048 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e007dd84 r9:00000002 r8:60000113 r7:829171a0 r6:e007dd8c r5:8585e000 r4:8585e000 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8585e000 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e007de08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:85a72e40 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8585e000 r7:00000000 r6:83018600 r5:00001000 r4:7f284000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0043000 [<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) r5:854b8f8c r4:858b5380 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:854b8f8c r4:858b5380 [<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 r9:8585e000 r8:858b53ac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:858b5380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858b5380 r8:80278fec r7:dfba5e60 r6:858b5280 r5:8585e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe007dfb0 to 0xe007dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:85a72d00 INFO: task kworker/1:65:10048 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 INFO: task kworker/1:66:10049 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:66 state:D stack:0 pid:10049 tgid:10049 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfa55d84 r9:00000002 r8:60000013 r7:829171a0 r6:dfa55d8c r5:8585d400 r4:8585d400 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8585d400 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfa55e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:863f2440 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8585d400 r7:00000000 r6:83018600 r5:00001000 r4:7f28a000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e42d1000 [<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) r5:85478b8c r4:858b5300 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:85478b8c r4:858b5300 [<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 r9:8585d400 r8:858b532c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:858b5300 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858b5300 r8:80278fec r7:dfba5e60 r6:858b5180 r5:8585d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa55fb0 to 0xdfa55ff8) 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 r4:863f2ec0 INFO: task kworker/1:66:10049 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 INFO: task kworker/0:52:10052 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:52 state:D stack:0 pid:10052 tgid:10052 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e0221d84 r9:00000002 r8:60000113 r7:829171a0 r6:e0221d8c r5:84f74800 r4:84f74800 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84f74800 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e0221e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:858c00c0 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f74800 r7:00000000 r6:83018400 r5:00001000 r4:7f288000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0273000 [<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) r5:84d9db8c r4:858a7d80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d9db8c r4:858a7d80 [<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 r9:84f74800 r8:858a7dac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7d80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7d80 r8:80278fec r7:e0091e60 r6:858a7a80 r5:84f74800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0221fb0 to 0xe0221ff8) 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 r4:85b80bc0 INFO: task kworker/0:52:10052 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:53:10056 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:53 state:D stack:0 pid:10056 tgid:10056 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e0271d84 r9:00000002 r8:60000113 r7:829171a0 r6:e0271d8c r5:83878c00 r4:83878c00 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:83878c00 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e0271e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:859daa40 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83878c00 r7:00000000 r6:83018400 r5:00001000 r4:7f29e000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea415000 [<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) r5:84d9c38c r4:858a7d00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d9c38c r4:858a7d00 [<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 r9:83878c00 r8:858a7d2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7d00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7d00 r8:80278fec r7:e0091e60 r6:858a7e80 r5:83878c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0271fb0 to 0xe0271ff8) 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 r4:859da7c0 INFO: task kworker/0:53:10056 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/1:67:10059 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:67 state:D stack:0 pid:10059 tgid:10059 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfc25d84 r9:00000002 r8:60000013 r7:829171a0 r6:dfc25d8c r5:8585b000 r4:8585b000 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8585b000 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfc25e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:859dad40 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8585b000 r7:00000000 r6:83018600 r5:00001000 r4:7f298000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e8341000 [<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) r5:84d9d78c r4:84d54000 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:84d9d78c r4:84d54000 [<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 r9:8585b000 r8:84d5402c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:84d54000 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84d54000 r8:80278fec r7:dfba5e60 r6:858b5200 r5:8585b000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfc25fb0 to 0xdfc25ff8) 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 r4:85978080 INFO: task kworker/1:67:10059 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/1:68:10063 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:68 state:D stack:0 pid:10063 tgid:10063 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e8329d84 r9:00000002 r8:60000113 r7:829171a0 r6:e8329d8c r5:8585c800 r4:8585c800 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8585c800 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e8329e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:859da0c0 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8585c800 r7:00000000 r6:83018600 r5:00001000 r4:7f296000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e833b000 [<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) r5:84d9d38c r4:84db3e80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:84d9d38c r4:84db3e80 [<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 r9:8585c800 r8:84db3eac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:84db3e80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84db3e80 r8:80278fec r7:dfba5e60 r6:84db3f80 r5:8585c800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe8329fb0 to 0xe8329ff8) 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 r4:859789c0 INFO: task kworker/1:68:10063 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:54:10067 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:54 state:D stack:0 pid:10067 tgid:10067 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea3c1d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea3c1d8c r5:85858000 r4:85858000 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:85858000 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea3c1e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:8589d1c0 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85858000 r7:00000000 r6:83018400 r5:00001000 r4:7f254000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfb03000 [<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) r5:8547978c r4:858a7900 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8547978c r4:858a7900 [<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 r9:85858000 r8:858a792c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7900 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7900 r8:80278fec r7:e0271e60 r6:84db3400 r5:85858000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea3c1fb0 to 0xea3c1ff8) 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 r4:859da240 INFO: task kworker/0:54:10067 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:56:10084 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:56 state:D stack:0 pid:10084 tgid:10084 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e8375d84 r9:00000002 r8:60000013 r7:829171a0 r6:e8375d8c r5:84c22400 r4:84c22400 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84c22400 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e8375e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:85b2afc0 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84c22400 r7:00000000 r6:83018400 r5:00001000 r4:7f25a000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfbe9000 [<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) r5:856e9f8c r4:858a7580 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:856e9f8c r4:858a7580 [<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 r9:84c22400 r8:858a75ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7580 r8:80278fec r7:ea3e5e60 r6:858a7100 r5:84c22400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe8375fb0 to 0xe8375ff8) 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 r4:84afabc0 INFO: task kworker/0:56:10084 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:57:10086 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:57 state:D stack:0 pid:10086 tgid:10086 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:df9d5d84 r9:00000002 r8:60000113 r7:829171a0 r6:df9d5d8c r5:84c21800 r4:84c21800 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84c21800 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df9d5e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:85b2a6c0 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84c21800 r7:00000000 r6:83018400 r5:00001000 r4:7f256000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfbaf000 [<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) r5:856e8f8c r4:858a7380 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:856e8f8c r4:858a7380 [<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 r9:84c21800 r8:858a73ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7380 r8:80278fec r7:ea3e5e60 r6:858a7300 r5:84c21800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf9d5fb0 to 0xdf9d5ff8) 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 r4:84afae80 INFO: task kworker/0:57:10086 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:58:10090 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:58 state:D stack:0 pid:10090 tgid:10090 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e01ddd84 r9:00000002 r8:60000113 r7:829171a0 r6:e01ddd8c r5:84c23c00 r4:84c23c00 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84c23c00 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e01dde08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:84afa640 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84c23c00 r7:00000000 r6:83018400 r5:00001000 r4:7f26c000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0095000 [<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) r5:854b038c r4:858a7c80 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:854b038c r4:858a7c80 [<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 r9:84c23c00 r8:858a7cac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7c80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7c80 r8:80278fec r7:ea3e5e60 r6:85477980 r5:84c23c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe01ddfb0 to 0xe01ddff8) 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 r4:84afaa80 INFO: task kworker/0:58:10090 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:59:10095 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:59 state:D stack:0 pid:10095 tgid:10095 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e01e1d84 r9:00000002 r8:60000113 r7:829171a0 r6:e01e1d8c r5:84c25400 r4:84c25400 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84c25400 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e01e1e08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:85405d40 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84c25400 r7:00000000 r6:83018400 r5:00001000 r4:7f26e000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e018e000 [<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) r5:84d9cf8c r4:85477800 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d9cf8c r4:85477800 [<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 r9:84c25400 r8:8547782c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85477800 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85477800 r8:80278fec r7:ea3e5e60 r6:85477900 r5:84c25400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe01e1fb0 to 0xe01e1ff8) 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 r4:84afa3c0 INFO: task kworker/0:59:10095 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:60:10098 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:60 state:D stack:0 pid:10098 tgid:10098 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfb0dd84 r9:00000002 r8:60000113 r7:829171a0 r6:dfb0dd8c r5:84c24800 r4:84c24800 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84c24800 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb0de08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:84e91280 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84c24800 r7:00000000 r6:83018400 r5:00001000 r4:7f270000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea503000 [<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) r5:84d3e78c r4:85477f00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3e78c r4:85477f00 [<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 r9:84c24800 r8:85477f2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85477f00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85477f00 r8:80278fec r7:ea3e5e60 r6:85477d00 r5:84c24800 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 r4:84afa080 INFO: task kworker/0:60:10098 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:61:10103 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:61 state:D stack:0 pid:10103 tgid:10103 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a64088>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a630f4>] (__schedule) from [<81a64088>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea4cdd84 r9:00000002 r8:60000113 r7:829171a0 r6:ea4cdd8c r5:84c26000 r4:84c26000 [<81a6405c>] (schedule) from [<81a64470>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84c26000 r4:8291719c [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a64458>] (schedule_preempt_disabled) from [<81a67020>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a66cd0>] (__mutex_lock.constprop.0) from [<81a677c8>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea4cde08 r4:00000000 [<81a677b4>] (__mutex_lock_slowpath) from [<81a67808>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a677cc>] (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 r5:84e919c0 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84c26000 r7:00000000 r6:83018400 r5:00001000 r4:7f28c000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea553000 [<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) r5:854a4f8c r4:85477280 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:854a4f8c r4:85477280 [<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 r9:84c26000 r8:854772ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85477280 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85477280 r8:80278fec r7:ea3e5e60 r6:85477000 r5:84c26000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea4cdfb0 to 0xea4cdff8) 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 r4:84e91380 INFO: task kworker/0:61:10103 is blocked on a mutex likely owned by task kworker/0:48:10014. task:kworker/0:48 state:R running task stack:0 pid:10014 tgid:10014 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a630f4>] (__schedule) from [<81a644bc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:84f76c00 r8:80200c04 r7:dfcd5d54 r6:ffffffff r5:84f76c00 r4:00000000 [<81a6447c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfcd5d20 to 0xdfcd5d68) 5d20: b434a000 eb8d3000 00000001 80239bf8 7f238000 00000001 82acb1c4 82aca5a0 5d40: 7f238000 eb8d3000 8280c9b4 dfcd5d9c dfcd5da0 dfcd5d70 80230af0 80239c10 5d60: 80000013 ffffffff r5:80000013 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:dfcd5dc0 r5:dfcd5e08 r4:dfcd5dc0 [<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 r5:85886880 r4:00000000 [<804eda48>] (vfree) from [<80558850>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f266000 [<80558820>] (execmem_free) from [<803c5dd0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa4b000 [<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) r5:84d3df8c r4:858a7a00 [<803c7118>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84d3df8c r4:858a7a00 [<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 r9:84f76c00 r8:858a7a2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:858a7a00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a7a00 r8:80278fec r7:dfb75e60 r6:858a7500 r5:84f76c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:859e1f80 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 r6:000d0013 r5:600d0093 r4:82252390 [<80201b08>] (show_stack) from [<8021f924>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b08>] (show_stack) from [<8021f924>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021f8b4>] (dump_stack_lvl) from [<8021f948>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000001 r4:00000001 [<8021f930>] (dump_stack) from [<81a4cd0c>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a4cbac>] (nmi_cpu_backtrace) from [<81a4ce58>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8280c690 r5:8281ae34 r4:ffffffff [<81a4cd28>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:8281ba28 r8:8280c810 r7:0001ccf9 r6:00007d2a r5:82abf7d4 r4:864f4b0c [<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 r7:832a1200 r6:832a1200 r5:832e9800 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 r4:833487c0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2819 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194 LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline] LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603 pc : [<81a6cf5c>] lr : [<80a8eda8>] psr: 60000113 sp : eafb5eb0 ip : eafb5ec0 fp : eafb5ebc r10: 82959554 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 829594b8 r5 : 00000000 r4 : 00000001 r3 : 00001261 r2 : 00000000 r1 : 60000113 r0 : 8404e040 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84588640 DAC: fffffffd Call trace: [<81a6cf34>] (_raw_spin_unlock_irqrestore) from [<80a8eda8>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81a6cf34>] (_raw_spin_unlock_irqrestore) from [<80a8eda8>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81a6cf34>] (_raw_spin_unlock_irqrestore) from [<80a8eda8>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80a8ed88>] (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 r5:84b88c00 r4:829594b8 [<802e3678>] (nbcon_kthread_func) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:829594b8 r8:802e3678 r7:84519700 r6:84519700 r5:84b88c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeafb5fb0 to 0xeafb5ff8) 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 r4:84502fc0