INFO: task kworker/1:19:4102 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:19 state:D stack:0 pid:4102 tgid:4102 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab3168>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1ebc>] (__schedule) from [<81ab3168>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfcd5d84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfcd5d8c r5:83ed4800 r4:83ed4800 [<81ab313c>] (schedule) from [<81ab32f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83ed4800 r4:829174e4 [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab631c>] (__mutex_lock.constprop.0) from [<81ab737c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfcd5e08 r4:00000000 [<81ab7368>] (__mutex_lock_slowpath) from [<81ab73bc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7380>] (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 r5:859cc2c0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83ed4800 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:dfc6b000 [<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) r5:859a6b94 r4:85ab5400 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:859a6b94 r4:85ab5400 [<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 r9:83ed4800 r8:85ab542c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85ab5400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85ab5400 r8:802762fc r7:dfa9de60 r6:85ab5480 r5:83ed4800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85ab0cc0 INFO: task kworker/1:19:4102 is blocked on a mutex likely owned by task kworker/0:197:4682. task:kworker/0:197 state:R running task stack:0 pid:4682 tgid:4682 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab359c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85c66c00 r8:80200c04 r7:ea645d54 r6:ffffffff r5:85c66c00 r4:00000000 [<81ab355c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea645d20 to 0xea645d68) 5d20: e9a5c000 ebe9f000 00000001 80239018 dfb3c000 00000001 82ace204 82acd5e0 5d40: dfb3c000 ebe9f000 8280ca38 ea645d9c ea645da0 ea645d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 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:ea645dc0 r5:ea645e08 r4:ea645dc0 [<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 r5:8589d240 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c66c00 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:ea625000 [<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) r5:859f2794 r4:859ce880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f2794 r4:859ce880 [<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 r9:85c66c00 r8:859ce8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce880 r8:802762fc r7:ea641e60 r6:859bec00 r5:85c66c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea645fb0 to 0xea645ff8) 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 r4:859afac0 INFO: task kworker/1:20:4105 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:20 state:D stack:0 pid:4105 tgid:4105 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab3168>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1ebc>] (__schedule) from [<81ab3168>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfb99d84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfb99d8c r5:83ed0c00 r4:83ed0c00 [<81ab313c>] (schedule) from [<81ab32f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83ed0c00 r4:829174e4 [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab631c>] (__mutex_lock.constprop.0) from [<81ab737c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb99e08 r4:00000000 [<81ab7368>] (__mutex_lock_slowpath) from [<81ab73bc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7380>] (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 r5:859df500 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83ed0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f07d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea9a3000 [<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) r5:859a5b94 r4:85ab5680 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:859a5b94 r4:85ab5680 [<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 r9:83ed0c00 r8:85ab56ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85ab5680 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85ab5680 r8:802762fc r7:dfcd5e60 r6:85ab5700 r5:83ed0c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb99fb0 to 0xdfb99ff8) 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 r4:85ab0bc0 INFO: task kworker/1:20:4105 is blocked on a mutex likely owned by task kworker/0:197:4682. task:kworker/0:197 state:R running task stack:0 pid:4682 tgid:4682 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab359c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85c66c00 r8:80200c04 r7:ea645d54 r6:ffffffff r5:85c66c00 r4:00000000 [<81ab355c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea645d20 to 0xea645d68) 5d20: e9a5c000 ebe9f000 00000001 80239018 dfb3c000 00000001 82ace204 82acd5e0 5d40: dfb3c000 ebe9f000 8280ca38 ea645d9c ea645da0 ea645d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 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:ea645dc0 r5:ea645e08 r4:ea645dc0 [<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 r5:8589d240 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c66c00 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:ea625000 [<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) r5:859f2794 r4:859ce880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f2794 r4:859ce880 [<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 r9:85c66c00 r8:859ce8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce880 r8:802762fc r7:ea641e60 r6:859bec00 r5:85c66c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea645fb0 to 0xea645ff8) 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 r4:859afac0 INFO: task kworker/1:98:4610 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:98 state:D stack:0 pid:4610 tgid:4610 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab3168>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1ebc>] (__schedule) from [<81ab3168>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea6b9d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea6b9d8c r5:85934800 r4:85934800 [<81ab313c>] (schedule) from [<81ab32f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85934800 r4:829174e4 [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab631c>] (__mutex_lock.constprop.0) from [<81ab737c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6b9e08 r4:00000000 [<81ab7368>] (__mutex_lock_slowpath) from [<81ab73bc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7380>] (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 r5:859cc040 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85934800 r7:00000000 r6:83018600 r5:00001000 r4:7f057000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfb19000 [<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) r5:859a6794 r4:8589b780 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:859a6794 r4:8589b780 [<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 r9:85934800 r8:8589b7ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8589b780 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8589b780 r8:802762fc r7:ea56de60 r6:8589b980 r5:85934800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea6b9fb0 to 0xea6b9ff8) 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 r4:8589dc40 INFO: task kworker/1:98:4610 is blocked on a mutex likely owned by task kworker/0:197:4682. task:kworker/0:197 state:R running task stack:0 pid:4682 tgid:4682 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab359c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85c66c00 r8:80200c04 r7:ea645d54 r6:ffffffff r5:85c66c00 r4:00000000 [<81ab355c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea645d20 to 0xea645d68) 5d20: e9a5c000 ebe9f000 00000001 80239018 dfb3c000 00000001 82ace204 82acd5e0 5d40: dfb3c000 ebe9f000 8280ca38 ea645d9c ea645da0 ea645d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 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:ea645dc0 r5:ea645e08 r4:ea645dc0 [<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 r5:8589d240 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c66c00 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:ea625000 [<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) r5:859f2794 r4:859ce880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f2794 r4:859ce880 [<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 r9:85c66c00 r8:859ce8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce880 r8:802762fc r7:ea641e60 r6:859bec00 r5:85c66c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea645fb0 to 0xea645ff8) 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 r4:859afac0 INFO: task kworker/1:100:4629 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:100 state:D stack:0 pid:4629 tgid:4629 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab3168>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1ebc>] (__schedule) from [<81ab3168>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea6c1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea6c1d8c r5:85936c00 r4:85936c00 [<81ab313c>] (schedule) from [<81ab32f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85936c00 r4:829174e4 [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab631c>] (__mutex_lock.constprop.0) from [<81ab737c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6c1e08 r4:00000000 [<81ab7368>] (__mutex_lock_slowpath) from [<81ab73bc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7380>] (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 r5:859df740 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85936c00 r7:00000000 r6:83018600 r5:00001000 r4:7f07f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea9bf000 [<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) r5:859a7b94 r4:8589be80 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:859a7b94 r4:8589be80 [<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 r9:85936c00 r8:8589beac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8589be80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8589be80 r8:802762fc r7:ea56de60 r6:8589be00 r5:85936c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea6c1fb0 to 0xea6c1ff8) 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 r4:858b6f00 INFO: task kworker/1:100:4629 is blocked on a mutex likely owned by task kworker/0:197:4682. task:kworker/0:197 state:R running task stack:0 pid:4682 tgid:4682 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab359c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85c66c00 r8:80200c04 r7:ea645d54 r6:ffffffff r5:85c66c00 r4:00000000 [<81ab355c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea645d20 to 0xea645d68) 5d20: e9a5c000 ebe9f000 00000001 80239018 dfb3c000 00000001 82ace204 82acd5e0 5d40: dfb3c000 ebe9f000 8280ca38 ea645d9c ea645da0 ea645d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 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:ea645dc0 r5:ea645e08 r4:ea645dc0 [<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 r5:8589d240 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c66c00 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:ea625000 [<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) r5:859f2794 r4:859ce880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f2794 r4:859ce880 [<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 r9:85c66c00 r8:859ce8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce880 r8:802762fc r7:ea641e60 r6:859bec00 r5:85c66c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea645fb0 to 0xea645ff8) 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 r4:859afac0 INFO: task kworker/1:102:4652 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:102 state:D stack:0 pid:4652 tgid:4652 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab3168>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1ebc>] (__schedule) from [<81ab3168>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea789d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea789d8c r5:85c2c800 r4:85c2c800 [<81ab313c>] (schedule) from [<81ab32f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85c2c800 r4:829174e4 [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab631c>] (__mutex_lock.constprop.0) from [<81ab737c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea789e08 r4:00000000 [<81ab7368>] (__mutex_lock_slowpath) from [<81ab73bc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7380>] (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 r5:859ccd80 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c2c800 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e8487000 [<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) r5:859a7f94 r4:859be300 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:859a7f94 r4:859be300 [<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 r9:85c2c800 r8:859be32c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:859be300 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859be300 r8:802762fc r7:ea6b9e60 r6:859bf700 r5:85c2c800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea789fb0 to 0xea789ff8) 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 r4:85899380 INFO: task kworker/1:102:4652 is blocked on a mutex likely owned by task kworker/0:197:4682. task:kworker/0:197 state:R running task stack:0 pid:4682 tgid:4682 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab359c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85c66c00 r8:80200c04 r7:ea645d54 r6:ffffffff r5:85c66c00 r4:00000000 [<81ab355c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea645d20 to 0xea645d68) 5d20: e9a5c000 ebe9f000 00000001 80239018 dfb3c000 00000001 82ace204 82acd5e0 5d40: dfb3c000 ebe9f000 8280ca38 ea645d9c ea645da0 ea645d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 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:ea645dc0 r5:ea645e08 r4:ea645dc0 [<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 r5:8589d240 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c66c00 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:ea625000 [<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) r5:859f2794 r4:859ce880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f2794 r4:859ce880 [<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 r9:85c66c00 r8:859ce8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce880 r8:802762fc r7:ea641e60 r6:859bec00 r5:85c66c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea645fb0 to 0xea645ff8) 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 r4:859afac0 INFO: task kworker/0:193:4672 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:193 state:D stack:0 pid:4672 tgid:4672 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab3168>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1ebc>] (__schedule) from [<81ab3168>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea7cdd84 r9:829174e8 r8:60000013 r7:829174e8 r6:ea7cdd8c r5:85c63c00 r4:85c63c00 [<81ab313c>] (schedule) from [<81ab32f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85c63c00 r4:829174e4 [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab631c>] (__mutex_lock.constprop.0) from [<81ab737c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea7cde08 r4:00000000 [<81ab7368>] (__mutex_lock_slowpath) from [<81ab73bc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7380>] (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 r5:859af080 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c63c00 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea683000 [<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) r5:85a23f94 r4:859ce500 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85a23f94 r4:859ce500 [<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 r9:85c63c00 r8:859ce52c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce500 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce500 r8:802762fc r7:ea7b5e60 r6:859be480 r5:85c63c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea7cdfb0 to 0xea7cdff8) 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 r4:859d0900 INFO: task kworker/0:193:4672 is blocked on a mutex likely owned by task kworker/0:197:4682. task:kworker/0:197 state:R running task stack:0 pid:4682 tgid:4682 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab359c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85c66c00 r8:80200c04 r7:ea645d54 r6:ffffffff r5:85c66c00 r4:00000000 [<81ab355c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea645d20 to 0xea645d68) 5d20: e9a5c000 ebe9f000 00000001 80239018 dfb3c000 00000001 82ace204 82acd5e0 5d40: dfb3c000 ebe9f000 8280ca38 ea645d9c ea645da0 ea645d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 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:ea645dc0 r5:ea645e08 r4:ea645dc0 [<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 r5:8589d240 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c66c00 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:ea625000 [<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) r5:859f2794 r4:859ce880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f2794 r4:859ce880 [<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 r9:85c66c00 r8:859ce8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce880 r8:802762fc r7:ea641e60 r6:859bec00 r5:85c66c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea645fb0 to 0xea645ff8) 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 r4:859afac0 INFO: task kworker/0:198:4684 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:198 state:D stack:0 pid:4684 tgid:4684 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab3168>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1ebc>] (__schedule) from [<81ab3168>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea651d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea651d8c r5:85c62400 r4:85c62400 [<81ab313c>] (schedule) from [<81ab32f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85c62400 r4:829174e4 [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab631c>] (__mutex_lock.constprop.0) from [<81ab737c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea651e08 r4:00000000 [<81ab7368>] (__mutex_lock_slowpath) from [<81ab73bc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7380>] (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 r5:859d0fc0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c62400 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:ea6ad000 [<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) r5:85981b94 r4:859ce900 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85981b94 r4:859ce900 [<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 r9:85c62400 r8:859ce92c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce900 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce900 r8:802762fc r7:ea7cde60 r6:859bed00 r5:85c62400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea651fb0 to 0xea651ff8) 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 r4:8589d380 INFO: task kworker/0:198:4684 is blocked on a mutex likely owned by task kworker/0:197:4682. task:kworker/0:197 state:R running task stack:0 pid:4682 tgid:4682 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab359c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85c66c00 r8:80200c04 r7:ea645d54 r6:ffffffff r5:85c66c00 r4:00000000 [<81ab355c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea645d20 to 0xea645d68) 5d20: e9a5c000 ebe9f000 00000001 80239018 dfb3c000 00000001 82ace204 82acd5e0 5d40: dfb3c000 ebe9f000 8280ca38 ea645d9c ea645da0 ea645d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 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:ea645dc0 r5:ea645e08 r4:ea645dc0 [<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 r5:8589d240 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c66c00 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:ea625000 [<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) r5:859f2794 r4:859ce880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f2794 r4:859ce880 [<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 r9:85c66c00 r8:859ce8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce880 r8:802762fc r7:ea641e60 r6:859bec00 r5:85c66c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea645fb0 to 0xea645ff8) 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 r4:859afac0 INFO: task kworker/0:199:4686 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:199 state:D stack:0 pid:4686 tgid:4686 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab3168>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1ebc>] (__schedule) from [<81ab3168>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea745d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea745d8c r5:85c68000 r4:85c68000 [<81ab313c>] (schedule) from [<81ab32f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85c68000 r4:829174e4 [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab631c>] (__mutex_lock.constprop.0) from [<81ab737c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea745e08 r4:00000000 [<81ab7368>] (__mutex_lock_slowpath) from [<81ab73bc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7380>] (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 r5:859c9040 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c68000 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:dfa99000 [<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) r5:85c0eb94 r4:859ce980 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c0eb94 r4:859ce980 [<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 r9:85c68000 r8:859ce9ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce980 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce980 r8:802762fc r7:ea651e60 r6:859bee80 r5:85c68000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea745fb0 to 0xea745ff8) 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 r4:859afd00 INFO: task kworker/0:199:4686 is blocked on a mutex likely owned by task kworker/0:197:4682. task:kworker/0:197 state:R running task stack:0 pid:4682 tgid:4682 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab359c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85c66c00 r8:80200c04 r7:ea645d54 r6:ffffffff r5:85c66c00 r4:00000000 [<81ab355c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea645d20 to 0xea645d68) 5d20: e9a5c000 ebe9f000 00000001 80239018 dfb3c000 00000001 82ace204 82acd5e0 5d40: dfb3c000 ebe9f000 8280ca38 ea645d9c ea645da0 ea645d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 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:ea645dc0 r5:ea645e08 r4:ea645dc0 [<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 r5:8589d240 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c66c00 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:ea625000 [<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) r5:859f2794 r4:859ce880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f2794 r4:859ce880 [<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 r9:85c66c00 r8:859ce8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce880 r8:802762fc r7:ea641e60 r6:859bec00 r5:85c66c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea645fb0 to 0xea645ff8) 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 r4:859afac0 INFO: task kworker/0:200:4688 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:200 state:D stack:0 pid:4688 tgid:4688 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab3168>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1ebc>] (__schedule) from [<81ab3168>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea751d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea751d8c r5:85c68c00 r4:85c68c00 [<81ab313c>] (schedule) from [<81ab32f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85c68c00 r4:829174e4 [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab631c>] (__mutex_lock.constprop.0) from [<81ab737c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea751e08 r4:00000000 [<81ab7368>] (__mutex_lock_slowpath) from [<81ab73bc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7380>] (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 r5:859b3740 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c68c00 r7:00000000 r6:83018400 r5:00001000 r4:7f067000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea767000 [<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) r5:85c0c394 r4:859cea80 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c0c394 r4:859cea80 [<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 r9:85c68c00 r8:859ceaac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859cea80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859cea80 r8:802762fc r7:ea745e60 r6:859bef80 r5:85c68c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea751fb0 to 0xea751ff8) 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 r4:85892c40 INFO: task kworker/0:200:4688 is blocked on a mutex likely owned by task kworker/0:197:4682. task:kworker/0:197 state:R running task stack:0 pid:4682 tgid:4682 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab359c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85c66c00 r8:80200c04 r7:ea645d54 r6:ffffffff r5:85c66c00 r4:00000000 [<81ab355c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea645d20 to 0xea645d68) 5d20: e9a5c000 ebe9f000 00000001 80239018 dfb3c000 00000001 82ace204 82acd5e0 5d40: dfb3c000 ebe9f000 8280ca38 ea645d9c ea645da0 ea645d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 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:ea645dc0 r5:ea645e08 r4:ea645dc0 [<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 r5:8589d240 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c66c00 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:ea625000 [<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) r5:859f2794 r4:859ce880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f2794 r4:859ce880 [<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 r9:85c66c00 r8:859ce8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce880 r8:802762fc r7:ea641e60 r6:859bec00 r5:85c66c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea645fb0 to 0xea645ff8) 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 r4:859afac0 INFO: task kworker/0:201:4690 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:201 state:D stack:0 pid:4690 tgid:4690 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab3168>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1ebc>] (__schedule) from [<81ab3168>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea765d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea765d8c r5:8596bc00 r4:8596bc00 [<81ab313c>] (schedule) from [<81ab32f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:8596bc00 r4:829174e4 [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab32d8>] (schedule_preempt_disabled) from [<81ab6974>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab631c>] (__mutex_lock.constprop.0) from [<81ab737c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea765e08 r4:00000000 [<81ab7368>] (__mutex_lock_slowpath) from [<81ab73bc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7380>] (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 r5:859b3680 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8596bc00 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:df9f7000 [<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) r5:85c0e794 r4:859ceb80 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c0e794 r4:859ceb80 [<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 r9:8596bc00 r8:859cebac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ceb80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ceb80 r8:802762fc r7:ea751e60 r6:859cec00 r5:8596bc00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea765fb0 to 0xea765ff8) 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 r4:859af480 INFO: task kworker/0:201:4690 is blocked on a mutex likely owned by task kworker/0:197:4682. task:kworker/0:197 state:R running task stack:0 pid:4682 tgid:4682 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1ebc>] (__schedule) from [<81ab359c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85c66c00 r8:80200c04 r7:ea645d54 r6:ffffffff r5:85c66c00 r4:00000000 [<81ab355c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea645d20 to 0xea645d68) 5d20: e9a5c000 ebe9f000 00000001 80239018 dfb3c000 00000001 82ace204 82acd5e0 5d40: dfb3c000 ebe9f000 8280ca38 ea645d9c ea645da0 ea645d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 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:ea645dc0 r5:ea645e08 r4:ea645dc0 [<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 r5:8589d240 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c66c00 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:ea625000 [<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) r5:859f2794 r4:859ce880 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f2794 r4:859ce880 [<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 r9:85c66c00 r8:859ce8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:859ce880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859ce880 r8:802762fc r7:ea641e60 r6:859bec00 r5:85c66c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea645fb0 to 0xea645ff8) 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 r4:859afac0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:000b0013 r5:600b0093 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) r5:00000001 r4:00000001 [<8021ee40>] (dump_stack) from [<81a9b9a0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9b840>] (nmi_cpu_backtrace) from [<81a9baec>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8280c710 r5:8281af5c r4:ffffffff [<81a9b9bc>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007bda r8:8280c890 r7:0001fe5d r6:00007bda r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa35fc>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa35fc>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa35fc>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa3594>] (sys_info) from [<80383748>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa3594>] (sys_info) from [<80383748>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:85bf720c [<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 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2821 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194 LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline] LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603 pc : [<81abcb10>] lr : [<80aa3968>] psr: 60070013 sp : eb125eb0 ip : eb125ec0 fp : eb125ebc r10: 82959c04 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 000008df r2 : 00000000 r1 : 60070013 r0 : 84472440 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 85095640 DAC: fffffffd Call trace: [<81abcae8>] (_raw_spin_unlock_irqrestore) from [<80aa3968>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abcae8>] (_raw_spin_unlock_irqrestore) from [<80aa3968>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abcae8>] (_raw_spin_unlock_irqrestore) from [<80aa3968>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa3948>] (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 r4:84649800 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5798 r7:84b0f300 r6:84b0f300 r5:84649800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb125fb0 to 0xeb125ff8) 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 r4:84b3da00