INFO: task kworker/1:14:4138 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:14 state:D stack:0 pid:4138 tgid:4138 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:e0351d84 r9:829174e8 r8:60000113 r7:829174e8 r6:e0351d8c r5:83eea400 r4:83eea400 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83eea400 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e0351e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85ddabc0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83eea400 r7:00000000 r6:83018600 r5:00001000 r4:7f05b000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea623000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85d12394 r4:8588d800 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d12394 r4:8588d800 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:83eea400 r8:8588d82c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8588d800 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8588d800 r8:802762fc r7:e0361e60 r6:8588d780 r5:83eea400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0351fb0 to 0xe0351ff8) 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 r5:8027f5d0 r4:85880640 INFO: task kworker/1:14:4138 is blocked on a mutex likely owned by task kworker/0:231:5073. task:kworker/0:231 state:R running task stack:0 pid:5073 tgid:5073 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85d69800 r8:80200c04 r7:ead65d54 r6:ffffffff r5:85d69800 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xead65d20 to 0xead65d68) 5d20: a8691000 eb389000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 eb389000 8280ca38 ead65d9c ead65da0 ead65d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ead65dc0 r5:ead65e08 r4:ead65dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0800 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d69800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa26000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daef94 r4:85cb8880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daef94 r4:85cb8880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d69800 r8:85cb88ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8880 r8:802762fc r7:ead89e60 r6:85cb8900 r5:85d69800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead65fb0 to 0xead65ff8) 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 r5:8027f5d0 r4:85cc0040 INFO: task kworker/1:249:5054 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:249 state:D stack:0 pid:5054 tgid:5054 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eac3dd84 r9:829174e8 r8:60000113 r7:829174e8 r6:eac3dd8c r5:85d5ec00 r4:85d5ec00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d5ec00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eac3de08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0ac0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85d5ec00 r7:00000000 r6:83018600 r5:00001000 r4:7f085000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eade9000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85d13794 r4:85dd8480 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d13794 r4:85dd8480 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d5ec00 r8:85dd84ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85dd8480 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85dd8480 r8:802762fc r7:eaae1e60 r6:85dd8180 r5:85d5ec00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac3dfb0 to 0xeac3dff8) 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 r5:8027f5d0 r4:859b6bc0 INFO: task kworker/1:249:5054 is blocked on a mutex likely owned by task kworker/0:231:5073. task:kworker/0:231 state:R running task stack:0 pid:5073 tgid:5073 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85d69800 r8:80200c04 r7:ead65d54 r6:ffffffff r5:85d69800 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xead65d20 to 0xead65d68) 5d20: a8bd4000 eb389000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 eb389000 8280ca38 ead65d9c ead65da0 ead65d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ead65dc0 r5:ead65e08 r4:ead65dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0800 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d69800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa26000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daef94 r4:85cb8880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daef94 r4:85cb8880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d69800 r8:85cb88ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8880 r8:802762fc r7:ead89e60 r6:85cb8900 r5:85d69800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead65fb0 to 0xead65ff8) 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 r5:8027f5d0 r4:85cc0040 INFO: task kworker/1:250:5057 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:250 state:D stack:0 pid:5057 tgid:5057 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eac41d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eac41d8c r5:85d5e000 r4:85d5e000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d5e000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eac41e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b6340 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85d5e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea72b000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85d11794 r4:859c6f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d11794 r4:859c6f00 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d5e000 r8:859c6f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:859c6f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859c6f00 r8:802762fc r7:eac3de60 r6:85dd8f80 r5:85d5e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac41fb0 to 0xeac41ff8) 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 r5:8027f5d0 r4:859b3080 INFO: task kworker/1:250:5057 is blocked on a mutex likely owned by task kworker/0:231:5073. task:kworker/0:231 state:R running task stack:0 pid:5073 tgid:5073 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85d69800 r8:80200c04 r7:ead65d54 r6:ffffffff r5:85d69800 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xead65d20 to 0xead65d68) 5d20: a8e20000 eb389000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 eb389000 8280ca38 ead65d9c ead65da0 ead65d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ead65dc0 r5:ead65e08 r4:ead65dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0800 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d69800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa26000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daef94 r4:85cb8880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daef94 r4:85cb8880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d69800 r8:85cb88ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8880 r8:802762fc r7:ead89e60 r6:85cb8900 r5:85d69800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead65fb0 to 0xead65ff8) 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 r5:8027f5d0 r4:85cc0040 INFO: task kworker/1:251:5068 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:251 state:D stack:0 pid:5068 tgid:5068 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ead39d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ead39d8c r5:85d3ec00 r4:85d3ec00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d3ec00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ead39e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cb5040 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85d3ec00 r7:00000000 r6:83018600 r5:00001000 r4:7f06d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eadc1000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85d13b94 r4:85cbc180 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d13b94 r4:85cbc180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d3ec00 r8:85cbc1ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85cbc180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cbc180 r8:802762fc r7:eac41e60 r6:85cb8200 r5:85d3ec00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead39fb0 to 0xead39ff8) 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 r5:8027f5d0 r4:8588a600 INFO: task kworker/1:251:5068 is blocked on a mutex likely owned by task kworker/0:231:5073. task:kworker/0:231 state:R running task stack:0 pid:5073 tgid:5073 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85d69800 r8:80200c04 r7:ead65d54 r6:ffffffff r5:85d69800 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xead65d20 to 0xead65d68) 5d20: a8fa7000 eb389000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 eb389000 8280ca38 ead65d9c ead65da0 ead65d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ead65dc0 r5:ead65e08 r4:ead65dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0800 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d69800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa26000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daef94 r4:85cb8880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daef94 r4:85cb8880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d69800 r8:85cb88ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8880 r8:802762fc r7:ead89e60 r6:85cb8900 r5:85d69800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead65fb0 to 0xead65ff8) 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 r5:8027f5d0 r4:85cc0040 INFO: task kworker/0:230:5072 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:230 state:D stack:0 pid:5072 tgid:5072 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ead89d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ead89d8c r5:85d68c00 r4:85d68c00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d68c00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ead89e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d68c00 r7:00000000 r6:83018400 r5:00001000 r4:7f055000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfd51000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daf794 r4:85cb8400 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daf794 r4:85cb8400 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d68c00 r8:85cb842c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8400 r8:802762fc r7:eac6de60 r6:85cb8780 r5:85d68c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead89fb0 to 0xead89ff8) 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 r5:8027f5d0 r4:85cc0200 INFO: task kworker/0:230:5072 is blocked on a mutex likely owned by task kworker/0:231:5073. task:kworker/0:231 state:R running task stack:0 pid:5073 tgid:5073 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85d69800 r8:80200c04 r7:ead65d54 r6:ffffffff r5:85d69800 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xead65d20 to 0xead65d68) 5d20: a930a000 eb389000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 eb389000 8280ca38 ead65d9c ead65da0 ead65d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ead65dc0 r5:ead65e08 r4:ead65dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0800 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d69800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa26000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daef94 r4:85cb8880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daef94 r4:85cb8880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d69800 r8:85cb88ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8880 r8:802762fc r7:ead89e60 r6:85cb8900 r5:85d69800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead65fb0 to 0xead65ff8) 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 r5:8027f5d0 r4:85cc0040 INFO: task kworker/0:232:5075 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:232 state:D stack:0 pid:5075 tgid:5075 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaab9d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaab9d8c r5:85d68000 r4:85d68000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d68000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaab9e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0c40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d68000 r7:00000000 r6:83018400 r5:00001000 r4:7f053000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfbd7000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daf394 r4:85cb8700 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daf394 r4:85cb8700 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d68000 r8:85cb872c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8700 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8700 r8:802762fc r7:ead89e60 r6:85cb8a80 r5:85d68000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab9fb0 to 0xeaab9ff8) 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 r5:8027f5d0 r4:85cc0780 INFO: task kworker/0:232:5075 is blocked on a mutex likely owned by task kworker/0:231:5073. task:kworker/0:231 state:R running task stack:0 pid:5073 tgid:5073 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85d69800 r8:80200c04 r7:ead65d54 r6:ffffffff r5:85d69800 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xead65d20 to 0xead65d68) 5d20: a9702000 eb389000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 eb389000 8280ca38 ead65d9c ead65da0 ead65d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ead65dc0 r5:ead65e08 r4:ead65dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0800 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d69800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa26000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daef94 r4:85cb8880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daef94 r4:85cb8880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d69800 r8:85cb88ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8880 r8:802762fc r7:ead89e60 r6:85cb8900 r5:85d69800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead65fb0 to 0xead65ff8) 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 r5:8027f5d0 r4:85cc0040 INFO: task kworker/0:233:5078 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:233 state:D stack:0 pid:5078 tgid:5078 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eadadd84 r9:829174e8 r8:60000113 r7:829174e8 r6:eadadd8c r5:85d6a400 r4:85d6a400 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d6a400 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eadade08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0d80 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d6a400 r7:00000000 r6:83018400 r5:00001000 r4:7f059000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e44a6000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daff94 r4:85cb8a00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daff94 r4:85cb8a00 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d6a400 r8:85cb8a2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8a00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8a00 r8:802762fc r7:ead89e60 r6:85cb8c00 r5:85d6a400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeadadfb0 to 0xeadadff8) 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 r5:8027f5d0 r4:85cc0b80 INFO: task kworker/0:233:5078 is blocked on a mutex likely owned by task kworker/0:231:5073. task:kworker/0:231 state:R running task stack:0 pid:5073 tgid:5073 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85d69800 r8:80200c04 r7:ead65d54 r6:ffffffff r5:85d69800 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xead65d20 to 0xead65d68) 5d20: a9702000 eb389000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 eb389000 8280ca38 ead65d9c ead65da0 ead65d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ead65dc0 r5:ead65e08 r4:ead65dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0800 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d69800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa26000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daef94 r4:85cb8880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daef94 r4:85cb8880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d69800 r8:85cb88ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8880 r8:802762fc r7:ead89e60 r6:85cb8900 r5:85d69800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead65fb0 to 0xead65ff8) 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 r5:8027f5d0 r4:85cc0040 INFO: task kworker/0:234:5080 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:234 state:D stack:0 pid:5080 tgid:5080 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab79d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eab79d8c r5:85d6b000 r4:85d6b000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d6b000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab79e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0c80 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d6b000 r7:00000000 r6:83018400 r5:00001000 r4:7f057000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e0245000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dafb94 r4:85cb8b80 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85dafb94 r4:85cb8b80 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d6b000 r8:85cb8bac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8b80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8b80 r8:802762fc r7:eadade60 r6:85cb8d80 r5:85d6b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab79fb0 to 0xeab79ff8) 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 r5:8027f5d0 r4:85cc0d80 INFO: task kworker/0:234:5080 is blocked on a mutex likely owned by task kworker/0:231:5073. task:kworker/0:231 state:R running task stack:0 pid:5073 tgid:5073 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85d69800 r8:80200c04 r7:ead65d54 r6:ffffffff r5:85d69800 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xead65d20 to 0xead65d68) 5d20: a9b50000 eb389000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 eb389000 8280ca38 ead65d9c ead65da0 ead65d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ead65dc0 r5:ead65e08 r4:ead65dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0800 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d69800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa26000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daef94 r4:85cb8880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daef94 r4:85cb8880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d69800 r8:85cb88ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8880 r8:802762fc r7:ead89e60 r6:85cb8900 r5:85d69800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead65fb0 to 0xead65ff8) 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 r5:8027f5d0 r4:85cc0040 INFO: task kworker/0:235:5081 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:235 state:D stack:0 pid:5081 tgid:5081 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab81d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eab81d8c r5:85d6bc00 r4:85d6bc00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d6bc00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab81e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc7d00 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d6bc00 r7:00000000 r6:83018400 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc11000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dba394 r4:85cb8d00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85dba394 r4:85cb8d00 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d6bc00 r8:85cb8d2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8d00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8d00 r8:802762fc r7:eadade60 r6:85cb8f00 r5:85d6bc00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab81fb0 to 0xeab81ff8) 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 r5:8027f5d0 r4:85dd9b40 INFO: task kworker/0:235:5081 is blocked on a mutex likely owned by task kworker/0:231:5073. task:kworker/0:231 state:R running task stack:0 pid:5073 tgid:5073 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85d69800 r8:80200c04 r7:ead65d54 r6:ffffffff r5:85d69800 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xead65d20 to 0xead65d68) 5d20: a9f00000 eb389000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 eb389000 8280ca38 ead65d9c ead65da0 ead65d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ead65dc0 r5:ead65e08 r4:ead65dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0800 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d69800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa26000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daef94 r4:85cb8880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daef94 r4:85cb8880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d69800 r8:85cb88ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8880 r8:802762fc r7:ead89e60 r6:85cb8900 r5:85d69800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead65fb0 to 0xead65ff8) 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 r5:8027f5d0 r4:85cc0040 INFO: task kworker/0:236:5084 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:236 state:D stack:0 pid:5084 tgid:5084 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab85d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eab85d8c r5:85d6d400 r4:85d6d400 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d6d400 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab85e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859c1c00 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d6d400 r7:00000000 r6:83018400 r5:00001000 r4:7f065000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eaa8f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85cfb794 r4:85cb9d80 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85cfb794 r4:85cb9d80 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d6d400 r8:85cb9dac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb9d80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb9d80 r8:802762fc r7:eab81e60 r6:85cb8e80 r5:85d6d400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab85fb0 to 0xeab85ff8) 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 r5:8027f5d0 r4:85cc0a40 INFO: task kworker/0:236:5084 is blocked on a mutex likely owned by task kworker/0:231:5073. task:kworker/0:231 state:R running task stack:0 pid:5073 tgid:5073 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85d69800 r8:80200c04 r7:ead65d54 r6:ffffffff r5:85d69800 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xead65d20 to 0xead65d68) 5d20: a9f00000 eb389000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 eb389000 8280ca38 ead65d9c ead65da0 ead65d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ead65dc0 r5:ead65e08 r4:ead65dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cc0800 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d69800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa26000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85daef94 r4:85cb8880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daef94 r4:85cb8880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85d69800 r8:85cb88ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85cb8880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cb8880 r8:802762fc r7:ead89e60 r6:85cb8900 r5:85d69800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xead65fb0 to 0xead65ff8) 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 r5:8027f5d0 r4:85cc0040 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:000f0113 r5:600f0193 r4:8229596c [<80201b58>] (show_stack) from [<8021ee34>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b58>] (show_stack) from [<8021ee34>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021edc4>] (dump_stack_lvl) from [<8021ee58>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<8021ee40>] (dump_stack) from [<81a9b920>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9b7c0>] (nmi_cpu_backtrace) from [<81a9ba6c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c710 r5:8281af5c r4:ffffffff [<81a9b93c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007bd7 r8:8280c890 r7:00021530 r6:00007bd7 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa357c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa357c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa357c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa3514>] (sys_info) from [<80383748>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa3514>] (sys_info) from [<80383748>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:85e8080c [<803832e4>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:803832e4 r7:830d6a00 r6:830d6a00 r5:8321c800 r4:00000001 [<8027f5d0>] (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 r5:8027f5d0 r4:833ce700 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 2821 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194 LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline] LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603 pc : [<81abca90>] lr : [<80aa3928>] psr: 60000113 sp : eb41deb0 ip : eb41dec0 fp : eb41debc r10: 82959c04 r9 : 00000001 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 000007ce r2 : 00000000 r1 : 60000113 r0 : 8447d040 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 8614c000 DAC: 00000000 Call trace: [<81abca68>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abca68>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abca68>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa3908>] (pl011_console_device_unlock) from [<802e5720>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149) [<802e5698>] (nbcon_emit_one) from [<802e59a0>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255) r6:82abf0fc r5:82959b68 r4:8504ec00 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5798 r7:84f5d300 r6:84f5d300 r5:8504ec00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb41dfb0 to 0xeb41dff8) 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 r5:8027f5d0 r4:830d1d40