INFO: task kworker/0:3:3072 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:0 pid:3072 tgid:3072 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a466e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a45754>] (__schedule) from [<81a466e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ec2e1d84 r9:00000002 r8:60000013 r7:82916b60 r6:ec2e1d8c r5:8543ec00 r4:8543ec00 [<81a466bc>] (schedule) from [<81a46ad0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8543ec00 r4:82916b5c [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a49330>] (__mutex_lock.constprop.0) from [<81a49e28>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ec2e1e08 r4:00000000 [<81a49e14>] (__mutex_lock_slowpath) from [<81a49e68>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a49e2c>] (mutex_lock) from [<804e81d8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c250c0 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8543ec00 r7:00000000 r6:83018400 r5:00001000 r4:7f28e000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df9d7000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86885b8c r4:84c05b80 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:86885b8c r4:84c05b80 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8543ec00 r8:84c05bac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:84c05b80 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84c05b80 r8:80278fe0 r7:df83de60 r6:84c05a00 r5:8543ec00 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xec2e1fb0 to 0xec2e1ff8) 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 r5:802800d4 r4:8567bc00 INFO: task kworker/0:3:3072 is blocked on a mutex likely owned by task kworker/0:10:12647. task:kworker/0:10 state:R running task stack:0 pid:12647 tgid:12647 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a46b1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:85cc6000 r8:80200c04 r7:dfbadd54 r6:ffffffff r5:85cc6000 r4:00000000 [<81a46adc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfbadd20 to 0xdfbadd68) dd20: b715d000 e055b000 00000001 80239bf8 7f23e000 00000001 82ac9f84 82ac9360 dd40: 7f23e000 e055b000 8280c9b4 dfbadd9c dfbadda0 dfbadd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e7f9c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82ac9fa4 [<804e7d18>] (__purge_vmap_area_lazy) from [<804e8354>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfbaddc0 r5:dfbade08 r4:dfbaddc0 [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86b2bfc0 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85cc6000 r7:00000000 r6:83018400 r5:00001000 r4:7f264000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df995000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8510238c r4:84f5ca80 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8510238c r4:84f5ca80 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:85cc6000 r8:84f5caac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:84f5ca80 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84f5ca80 r8:80278fe0 r7:dfb0de60 r6:84f5c500 r5:85cc6000 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbadfb0 to 0xdfbadff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800d4 r4:8523c480 INFO: task kworker/0:4:10784 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:4 state:D stack:0 pid:10784 tgid:10784 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a466e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a45754>] (__schedule) from [<81a466e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfa55d84 r9:00000002 r8:60070113 r7:82916b60 r6:dfa55d8c r5:84222400 r4:84222400 [<81a466bc>] (schedule) from [<81a46ad0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84222400 r4:82916b5c [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a49330>] (__mutex_lock.constprop.0) from [<81a49e28>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfa55e08 r4:00000000 [<81a49e14>] (__mutex_lock_slowpath) from [<81a49e68>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a49e2c>] (mutex_lock) from [<804e81d8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:857960c0 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84222400 r7:00000000 r6:83018400 r5:00001000 r4:7f029000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df83f000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8426578c r4:84ca8c00 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8426578c r4:84ca8c00 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:84222400 r8:84ca8c2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:84ca8c00 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84ca8c00 r8:80278fe0 r7:dfa89e60 r6:85a84680 r5:84222400 r4:00000001 [<802800d4>] (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 r5:802800d4 r4:85b2d440 INFO: task kworker/0:4:10784 is blocked on a mutex likely owned by task kworker/0:10:12647. task:kworker/0:10 state:R running task stack:0 pid:12647 tgid:12647 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a46b1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:85cc6000 r8:80200c04 r7:dfbadd54 r6:ffffffff r5:85cc6000 r4:00000000 [<81a46adc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfbadd20 to 0xdfbadd68) dd20: b763c000 e055b000 00000001 80239bf8 7f23e000 00000001 82ac9f84 82ac9360 dd40: 7f23e000 e055b000 8280c9b4 dfbadd9c dfbadda0 dfbadd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e7f9c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82ac9fa4 [<804e7d18>] (__purge_vmap_area_lazy) from [<804e8354>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfbaddc0 r5:dfbade08 r4:dfbaddc0 [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86b2bfc0 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85cc6000 r7:00000000 r6:83018400 r5:00001000 r4:7f264000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df995000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8510238c r4:84f5ca80 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8510238c r4:84f5ca80 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:85cc6000 r8:84f5caac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:84f5ca80 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84f5ca80 r8:80278fe0 r7:dfb0de60 r6:84f5c500 r5:85cc6000 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbadfb0 to 0xdfbadff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800d4 r4:8523c480 INFO: task kworker/0:17:16654 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:17 state:D stack:0 pid:16654 tgid:16654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a466e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a45754>] (__schedule) from [<81a466e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfdb9d84 r9:00000002 r8:600f0013 r7:82916b60 r6:dfdb9d8c r5:8514ec00 r4:8514ec00 [<81a466bc>] (schedule) from [<81a46ad0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8514ec00 r4:82916b5c [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a49330>] (__mutex_lock.constprop.0) from [<81a49e28>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfdb9e08 r4:00000000 [<81a49e14>] (__mutex_lock_slowpath) from [<81a49e68>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a49e2c>] (mutex_lock) from [<804e81d8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85796340 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8514ec00 r7:00000000 r6:83018400 r5:00001000 r4:7f234000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df841000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:84265b8c r4:86f7b800 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:84265b8c r4:86f7b800 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8514ec00 r8:86f7b82c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:86f7b800 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:86f7b800 r8:80278fe0 r7:dfa99e60 r6:859ba600 r5:8514ec00 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfdb9fb0 to 0xdfdb9ff8) 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 r5:802800d4 r4:86b1bd00 INFO: task kworker/0:17:16654 is blocked on a mutex likely owned by task kworker/0:10:12647. task:kworker/0:10 state:R running task stack:0 pid:12647 tgid:12647 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a46b1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:85cc6000 r8:80200c04 r7:dfbadd54 r6:ffffffff r5:85cc6000 r4:00000000 [<81a46adc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfbadd20 to 0xdfbadd68) dd20: b78ce000 e055b000 00000001 80239bf8 7f23e000 00000001 82ac9f84 82ac9360 dd40: 7f23e000 e055b000 8280c9b4 dfbadd9c dfbadda0 dfbadd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e7f9c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82ac9fa4 [<804e7d18>] (__purge_vmap_area_lazy) from [<804e8354>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfbaddc0 r5:dfbade08 r4:dfbaddc0 [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86b2bfc0 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85cc6000 r7:00000000 r6:83018400 r5:00001000 r4:7f264000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df995000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8510238c r4:84f5ca80 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8510238c r4:84f5ca80 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:85cc6000 r8:84f5caac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:84f5ca80 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84f5ca80 r8:80278fe0 r7:dfb0de60 r6:84f5c500 r5:85cc6000 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbadfb0 to 0xdfbadff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800d4 r4:8523c480 INFO: task kworker/0:18:16669 blocked for more than 431 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:18 state:D stack:0 pid:16669 tgid:16669 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a466e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a45754>] (__schedule) from [<81a466e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfbd5d84 r9:00000002 r8:600f0013 r7:82916b60 r6:dfbd5d8c r5:8320ec00 r4:8320ec00 [<81a466bc>] (schedule) from [<81a46ad0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8320ec00 r4:82916b5c [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a49330>] (__mutex_lock.constprop.0) from [<81a49e28>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbd5e08 r4:00000000 [<81a49e14>] (__mutex_lock_slowpath) from [<81a49e68>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a49e2c>] (mutex_lock) from [<804e81d8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f291c0 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8320ec00 r7:00000000 r6:83018400 r5:00001000 r4:7f280000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa19000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85ecef8c r4:86f7ba80 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85ecef8c r4:86f7ba80 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8320ec00 r8:86f7baac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:86f7ba80 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:86f7ba80 r8:80278fe0 r7:dfd99e60 r6:859bab00 r5:8320ec00 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbd5fb0 to 0xdfbd5ff8) 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 r5:802800d4 r4:86b26980 INFO: task kworker/0:18:16669 is blocked on a mutex likely owned by task kworker/0:10:12647. task:kworker/0:10 state:R running task stack:0 pid:12647 tgid:12647 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a46b1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:85cc6000 r8:80200c04 r7:dfbadd54 r6:ffffffff r5:85cc6000 r4:00000000 [<81a46adc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfbadd20 to 0xdfbadd68) dd20: b7dc7000 e055b000 00000001 80239bf8 7f23e000 00000001 82ac9f84 82ac9360 dd40: 7f23e000 e055b000 8280c9b4 dfbadd9c dfbadda0 dfbadd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e7f9c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82ac9fa4 [<804e7d18>] (__purge_vmap_area_lazy) from [<804e8354>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfbaddc0 r5:dfbade08 r4:dfbaddc0 [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86b2bfc0 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85cc6000 r7:00000000 r6:83018400 r5:00001000 r4:7f264000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df995000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8510238c r4:84f5ca80 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8510238c r4:84f5ca80 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:85cc6000 r8:84f5caac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:84f5ca80 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84f5ca80 r8:80278fe0 r7:dfb0de60 r6:84f5c500 r5:85cc6000 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbadfb0 to 0xdfbadff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800d4 r4:8523c480 INFO: task kworker/0:19:17523 blocked for more than 431 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:19 state:D stack:0 pid:17523 tgid:17523 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a466e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a45754>] (__schedule) from [<81a466e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfcb5d84 r9:00000002 r8:60010113 r7:82916b60 r6:dfcb5d8c r5:83bb3c00 r4:83bb3c00 [<81a466bc>] (schedule) from [<81a46ad0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:83bb3c00 r4:82916b5c [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a49330>] (__mutex_lock.constprop.0) from [<81a49e28>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfcb5e08 r4:00000000 [<81a49e14>] (__mutex_lock_slowpath) from [<81a49e68>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a49e2c>] (mutex_lock) from [<804e81d8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:853f9b80 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83bb3c00 r7:00000000 r6:83018400 r5:00001000 r4:7f28c000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df98a000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8688578c r4:87e55580 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8688578c r4:87e55580 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:83bb3c00 r8:87e555ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:87e55580 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:87e55580 r8:80278fe0 r7:ec2e1e60 r6:87c58380 r5:83bb3c00 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcb5fb0 to 0xdfcb5ff8) 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 r5:802800d4 r4:87c4c340 INFO: task kworker/0:19:17523 is blocked on a mutex likely owned by task kworker/0:10:12647. task:kworker/0:10 state:R running task stack:0 pid:12647 tgid:12647 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a46b1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:85cc6000 r8:80200c04 r7:dfbadd54 r6:ffffffff r5:85cc6000 r4:00000000 [<81a46adc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfbadd20 to 0xdfbadd68) dd20: b8212000 e055b000 00000001 80239bf8 7f23e000 00000001 82ac9f84 82ac9360 dd40: 7f23e000 e055b000 8280c9b4 dfbadd9c dfbadda0 dfbadd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e7f9c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82ac9fa4 [<804e7d18>] (__purge_vmap_area_lazy) from [<804e8354>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfbaddc0 r5:dfbade08 r4:dfbaddc0 [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86b2bfc0 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85cc6000 r7:00000000 r6:83018400 r5:00001000 r4:7f264000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df995000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8510238c r4:84f5ca80 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8510238c r4:84f5ca80 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:85cc6000 r8:84f5caac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:84f5ca80 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84f5ca80 r8:80278fe0 r7:dfb0de60 r6:84f5c500 r5:85cc6000 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbadfb0 to 0xdfbadff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800d4 r4:8523c480 INFO: task kworker/0:22:17576 blocked for more than 431 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:22 state:D stack:0 pid:17576 tgid:17576 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a466e8>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a45754>] (__schedule) from [<81a466e8>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfcd9d84 r9:00000002 r8:60070113 r7:82916b60 r6:dfcd9d8c r5:84226c00 r4:84226c00 [<81a466bc>] (schedule) from [<81a46ad0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84226c00 r4:82916b5c [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a46ab8>] (schedule_preempt_disabled) from [<81a49680>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a49330>] (__mutex_lock.constprop.0) from [<81a49e28>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfcd9e08 r4:00000000 [<81a49e14>] (__mutex_lock_slowpath) from [<81a49e68>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a49e2c>] (mutex_lock) from [<804e81d8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f298c0 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84226c00 r7:00000000 r6:83018400 r5:00001000 r4:7f27e000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa17000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85ece38c r4:87e55f80 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85ece38c r4:87e55f80 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:84226c00 r8:87e55fac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:87e55f80 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:87e55f80 r8:80278fe0 r7:dfbd5e60 r6:87c58480 r5:84226c00 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd9fb0 to 0xdfcd9ff8) 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 r5:802800d4 r4:85024e00 INFO: task kworker/0:22:17576 is blocked on a mutex likely owned by task kworker/0:10:12647. task:kworker/0:10 state:R running task stack:0 pid:12647 tgid:12647 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a45754>] (__schedule) from [<81a46b1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:85cc6000 r8:80200c04 r7:dfbadd54 r6:ffffffff r5:85cc6000 r4:00000000 [<81a46adc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfbadd20 to 0xdfbadd68) dd20: b8212000 e055b000 00000001 80239bf8 7f23e000 00000001 82ac9f84 82ac9360 dd40: 7f23e000 e055b000 8280c9b4 dfbadd9c dfbadda0 dfbadd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804e7f9c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82ac9fa4 [<804e7d18>] (__purge_vmap_area_lazy) from [<804e8354>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfbaddc0 r5:dfbade08 r4:dfbaddc0 [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804e8170>] (_vm_unmap_aliases) from [<804ebfb8>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86b2bfc0 r4:00000000 [<804ebe4c>] (vfree) from [<8055b968>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85cc6000 r7:00000000 r6:83018400 r5:00001000 r4:7f264000 [<8055b938>] (execmem_free) from [<803c43b4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df995000 [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c43a4>] (bpf_jit_free_exec) from [<803c4794>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c472c>] (bpf_jit_free) from [<803c583c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8510238c r4:84f5ca80 [<803c56fc>] (bpf_prog_free_deferred) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8510238c r4:84f5ca80 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:85cc6000 r8:84f5caac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:84f5ca80 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84f5ca80 r8:80278fe0 r7:dfb0de60 r6:84f5c500 r5:85cc6000 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbadfb0 to 0xdfbadff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800d4 r4:8523c480 NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 32 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 r6:00000113 r5:60000193 r4:82263df8 [<80201b08>] (show_stack) from [<8021f90c>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b08>] (show_stack) from [<8021f90c>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021f89c>] (dump_stack_lvl) from [<8021f930>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<8021f918>] (dump_stack) from [<81a2f36c>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a2f20c>] (nmi_cpu_backtrace) from [<81a2f4b8>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c690 r5:8281ab90 r4:ffffffff [<81a2f388>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:8281b768 r8:8280c810 r7:00044c6c r6:00007e46 r5:82abe5c4 r4:858e5d0c [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037e4bc>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037e4bc>] (check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037e4bc>] (watchdog+0x5d0/0x850 kernel/hung_task.c:495) [<8037deec>] (watchdog) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:8037deec r7:830cf680 r6:830cf680 r5:83221800 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8e1fb0 to 0xdf8e1ff8) 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 r5:802800d4 r4:833a6cc0 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 2844 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 : [<81a4f71c>] lr : [<80a909d8>] psr: 60000113 sp : eb805eb0 ip : eb805ec0 fp : eb805ebc r10: 829595e4 r9 : 00000001 r8 : 00000000 r7 : 00000117 r6 : 82959548 r5 : 00000000 r4 : 00000001 r3 : 00001a0c r2 : 00000000 r1 : 60000113 r0 : 84048c40 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 86dc1d00 DAC: 00000000 Call trace: [<81a4f6f4>] (_raw_spin_unlock_irqrestore) from [<80a909d8>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81a4f6f4>] (_raw_spin_unlock_irqrestore) from [<80a909d8>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81a4f6f4>] (_raw_spin_unlock_irqrestore) from [<80a909d8>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80a909b8>] (pl011_console_device_unlock) from [<802e3090>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1142) [<802e3008>] (nbcon_emit_one) from [<802e32b0>] (nbcon_kthread_func+0x1a8/0x2a4 kernel/printk/nbcon.c:1229) r6:8280c690 r5:83b43c00 r4:82959548 [<802e3108>] (nbcon_kthread_func) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959548 r8:802e3108 r7:84770480 r6:84770480 r5:83b43c00 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb805fb0 to 0xeb805ff8) 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 r5:802800d4 r4:83801980