INFO: task kworker/1:3:1806 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:3 state:D stack:0 pid:1806 tgid:1806 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea955d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea955d8c r5:8454bc00 r4:8454bc00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:8454bc00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea955e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d2f7c0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8454bc00 r7:00000000 r6:83018600 r5:00001000 r4:7f250000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e018b000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:84e76f94 r4:84b0d080 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:84e76f94 r4:84b0d080 [<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 r9:8454bc00 r8:84b0d0ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:84b0d080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84b0d080 r8:802762fc r7:df919e60 r6:84b0d100 r5:8454bc00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea955fb0 to 0xea955ff8) 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 r4:84b07440 INFO: task kworker/1:3:1806 is blocked on a mutex likely owned by task kworker/0:8:4966. task:kworker/0:8 state:R running task stack:0 pid:4966 tgid:4966 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:83f73000 r8:80200c04 r7:e0201d54 r6:ffffffff r5:83f73000 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xe0201d20 to 0xe0201d68) 1d20: bd02c000 ea93f000 00000001 80239018 7f250000 00000001 82ace204 82acd5e0 1d40: 7f250000 ea93f000 8280ca38 e0201d9c e0201da0 e0201d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0201dc0 r5:e0201e08 r4:e0201dc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a609c0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83f73000 r7:00000000 r6:83018400 r5:00001000 r4:7f248000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e013b000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85a52794 r4:8508eb80 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85a52794 r4:8508eb80 [<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 r9:83f73000 r8:8508ebac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:8508eb80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8508eb80 r8:802762fc r7:dfd79e60 r6:8508ec80 r5:83f73000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0201fb0 to 0xe0201ff8) 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 r4:850a1000 INFO: task kworker/0:5:3057 blocked for more than 441 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:5 state:D stack:0 pid:3057 tgid:3057 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ebc59d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ebc59d8c r5:838f3000 r4:838f3000 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:838f3000 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ebc59e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85cf1fc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:838f3000 r7:00000000 r6:83018400 r5:00001000 r4:7f258000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e025d000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85a53b94 r4:84b89900 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85a53b94 r4:84b89900 [<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 r9:838f3000 r8:84b8992c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:84b89900 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84b89900 r8:802762fc r7:ebbdde60 r6:84ebd200 r5:838f3000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xebc59fb0 to 0xebc59ff8) 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 r4:851a5340 INFO: task kworker/0:5:3057 is blocked on a mutex likely owned by task kworker/0:8:4966. task:kworker/0:8 state:R running task stack:0 pid:4966 tgid:4966 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:83f73000 r8:80200c04 r7:e0201d54 r6:ffffffff r5:83f73000 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xe0201d20 to 0xe0201d68) 1d20: bf356000 ea93f000 00000001 80239018 7f250000 00000001 82ace204 82acd5e0 1d40: 7f250000 ea93f000 8280ca38 e0201d9c e0201da0 e0201d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0201dc0 r5:e0201e08 r4:e0201dc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a609c0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83f73000 r7:00000000 r6:83018400 r5:00001000 r4:7f248000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e013b000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85a52794 r4:8508eb80 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85a52794 r4:8508eb80 [<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 r9:83f73000 r8:8508ebac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:8508eb80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8508eb80 r8:802762fc r7:dfd79e60 r6:8508ec80 r5:83f73000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0201fb0 to 0xe0201ff8) 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 r4:850a1000 INFO: task kworker/1:6:3787 blocked for more than 447 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:6 state:D stack:0 pid:3787 tgid:3787 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:e011dd84 r9:829174e8 r8:60010013 r7:829174e8 r6:e011dd8c r5:83f14800 r4:83f14800 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83f14800 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e011de08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d82100 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83f14800 r7:00000000 r6:83018600 r5:00001000 r4:7f24a000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc43000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85a86394 r4:85fef100 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85a86394 r4:85fef100 [<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 r9:83f14800 r8:85fef12c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85fef100 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85fef100 r8:802762fc r7:ea955e60 r6:85fef500 r5:83f14800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe011dfb0 to 0xe011dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85d711c0 INFO: task kworker/1:6:3787 is blocked on a mutex likely owned by task kworker/0:8:4966. task:kworker/0:8 state:R running task stack:0 pid:4966 tgid:4966 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:83f73000 r8:80200c04 r7:e0201d54 r6:ffffffff r5:83f73000 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xe0201d20 to 0xe0201d68) 1d20: bf356000 ea93f000 00000001 80239018 7f250000 00000001 82ace204 82acd5e0 1d40: 7f250000 ea93f000 8280ca38 e0201d9c e0201da0 e0201d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0201dc0 r5:e0201e08 r4:e0201dc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a609c0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83f73000 r7:00000000 r6:83018400 r5:00001000 r4:7f248000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e013b000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85a52794 r4:8508eb80 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85a52794 r4:8508eb80 [<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 r9:83f73000 r8:8508ebac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:8508eb80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8508eb80 r8:802762fc r7:dfd79e60 r6:8508ec80 r5:83f73000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0201fb0 to 0xe0201ff8) 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 r4:850a1000 INFO: task kworker/1:10:5048 blocked for more than 427 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:10 state:D stack:0 pid:5048 tgid:5048 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events drain_vmap_area_work Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfb85e54 r9:829174e8 r8:60000013 r7:829174e8 r6:dfb85e5c r5:84423000 r4:84423000 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:84423000 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:83016170 r9:83018615 r8:84423000 r7:ddde3b40 r6:83018600 r5:829174cc r4:829174e4 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4578>] (drain_vmap_area_work+0x18/0x38 mm/vmalloc.c:2422) [<804f4560>] (drain_vmap_area_work) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r5:829174cc r4:862c6d00 [<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 r9:84423000 r8:862c6d2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:862c6d00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:862c6d00 r8:802762fc r7:df879e60 r6:8508ef00 r5:84423000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb85fb0 to 0xdfb85ff8) 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 r4:85a9c900 INFO: task kworker/1:10:5048 is blocked on a mutex likely owned by task kworker/0:8:4966. task:kworker/0:8 state:R running task stack:0 pid:4966 tgid:4966 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:83f73000 r8:80200c04 r7:e0201d54 r6:ffffffff r5:83f73000 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xe0201d20 to 0xe0201d68) 1d20: bf356000 ea93f000 00000001 80239018 7f250000 00000001 82ace204 82acd5e0 1d40: 7f250000 ea93f000 8280ca38 e0201d9c e0201da0 e0201d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0201dc0 r5:e0201e08 r4:e0201dc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a609c0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83f73000 r7:00000000 r6:83018400 r5:00001000 r4:7f248000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e013b000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85a52794 r4:8508eb80 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85a52794 r4:8508eb80 [<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 r9:83f73000 r8:8508ebac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:8508eb80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8508eb80 r8:802762fc r7:dfd79e60 r6:8508ec80 r5:83f73000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0201fb0 to 0xe0201ff8) 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 r4:850a1000 INFO: task kworker/1:11:5450 blocked for more than 427 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:11 state:D stack:0 pid:5450 tgid:5450 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:e0281d84 r9:829174e8 r8:60000113 r7:829174e8 r6:e0281d8c r5:846a4800 r4:846a4800 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:846a4800 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e0281e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c77140 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:846a4800 r7:00000000 r6:83018600 r5:00001000 r4:7f248000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e019f000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85fdbf94 r4:8585f600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85fdbf94 r4:8585f600 [<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 r9:846a4800 r8:8585f62c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8585f600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8585f600 r8:802762fc r7:dfb31e60 r6:8529dc80 r5:846a4800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0281fb0 to 0xe0281ff8) 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 r4:858deec0 INFO: task kworker/1:11:5450 is blocked on a mutex likely owned by task kworker/0:8:4966. task:kworker/0:8 state:R running task stack:0 pid:4966 tgid:4966 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:83f73000 r8:80200c04 r7:e0201d54 r6:ffffffff r5:83f73000 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xe0201d20 to 0xe0201d68) 1d20: bf356000 ea93f000 00000001 80239018 7f250000 00000001 82ace204 82acd5e0 1d40: 7f250000 ea93f000 8280ca38 e0201d9c e0201da0 e0201d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0201dc0 r5:e0201e08 r4:e0201dc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a609c0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83f73000 r7:00000000 r6:83018400 r5:00001000 r4:7f248000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e013b000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85a52794 r4:8508eb80 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85a52794 r4:8508eb80 [<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 r9:83f73000 r8:8508ebac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:8508eb80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8508eb80 r8:802762fc r7:dfd79e60 r6:8508ec80 r5:83f73000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0201fb0 to 0xe0201ff8) 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 r4:850a1000 INFO: task kworker/1:12:5577 blocked for more than 427 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:12 state:D stack:0 pid:5577 tgid:5577 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:df9e5d84 r9:829174e8 r8:60000013 r7:829174e8 r6:df9e5d8c r5:846a6c00 r4:846a6c00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:846a6c00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df9e5e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8524b8c0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:846a6c00 r7:00000000 r6:83018600 r5:00001000 r4:7f250000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea529000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85fa5394 r4:846ac780 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85fa5394 r4:846ac780 [<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 r9:846a6c00 r8:846ac7ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:846ac780 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:846ac780 r8:802762fc r7:e0281e60 r6:8528c200 r5:846a6c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf9e5fb0 to 0xdf9e5ff8) 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 r4:85b093c0 INFO: task kworker/1:12:5577 is blocked on a mutex likely owned by task kworker/0:8:4966. task:kworker/0:8 state:R running task stack:0 pid:4966 tgid:4966 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:83f73000 r8:80200c04 r7:e0201d54 r6:ffffffff r5:83f73000 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xe0201d20 to 0xe0201d68) 1d20: bf8c8000 ea93f000 00000001 80239018 7f250000 00000001 82ace204 82acd5e0 1d40: 7f250000 ea93f000 8280ca38 e0201d9c e0201da0 e0201d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0201dc0 r5:e0201e08 r4:e0201dc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a609c0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83f73000 r7:00000000 r6:83018400 r5:00001000 r4:7f248000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e013b000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85a52794 r4:8508eb80 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85a52794 r4:8508eb80 [<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 r9:83f73000 r8:8508ebac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:8508eb80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8508eb80 r8:802762fc r7:dfd79e60 r6:8508ec80 r5:83f73000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0201fb0 to 0xe0201ff8) 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 r4:850a1000 INFO: task kworker/1:13:5628 blocked for more than 436 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:13 state:D stack:0 pid:5628 tgid:5628 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:e028dd84 r9:829174e8 r8:600d0113 r7:829174e8 r6:e028dd8c r5:83f13000 r4:83f13000 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83f13000 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e028de08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d2e480 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83f13000 r7:00000000 r6:83018600 r5:00001000 r4:7f24e000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e02fd000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:84e60f94 r4:846af980 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:84e60f94 r4:846af980 [<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 r9:83f13000 r8:846af9ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:846af980 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:846af980 r8:802762fc r7:df879e60 r6:85dcd100 r5:83f13000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe028dfb0 to 0xe028dff8) 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 r4:858acc80 INFO: task kworker/1:13:5628 is blocked on a mutex likely owned by task kworker/0:8:4966. task:kworker/0:8 state:R running task stack:0 pid:4966 tgid:4966 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:83f73000 r8:80200c04 r7:e0201d54 r6:ffffffff r5:83f73000 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xe0201d20 to 0xe0201d68) 1d20: c20f6000 ea93f000 00000001 80239018 7f250000 00000001 82ace204 82acd5e0 1d40: 7f250000 ea93f000 8280ca38 e0201d9c e0201da0 e0201d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:e0201dc0 r5:e0201e08 r4:e0201dc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a609c0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83f73000 r7:00000000 r6:83018400 r5:00001000 r4:7f248000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e013b000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85a52794 r4:8508eb80 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85a52794 r4:8508eb80 [<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 r9:83f73000 r8:8508ebac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:8508eb80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8508eb80 r8:802762fc r7:dfd79e60 r6:8508ec80 r5:83f73000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0201fb0 to 0xe0201ff8) 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 r4:850a1000 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 r6:00000113 r5:60000193 r4:82295830 [<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 [<81a9b8e0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9b780>] (nmi_cpu_backtrace) from [<81a9ba2c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c710 r5:8281af5c r4:ffffffff [<81a9b8fc>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007f11 r8:8280c890 r7:0000bfc8 r6:00007f11 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa34d4>] (sys_info) from [<80383780>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa34d4>] (sys_info) from [<80383780>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:8404bf0c [<8038331c>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:8038331c 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: 2818 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at filter_irq_stacks+0x74/0x7c kernel/stacktrace.c:396 LR is at handle_fiq_as_nmi+0x0/0xb0 pc : [<8032286c>] lr : [<802011b0>] psr: 60070113 sp : df805d80 ip : 802012f4 fp : df805d94 r10: 81c03d5c r9 : 00002800 r8 : df805e04 r7 : 00000019 r6 : 00000001 r5 : 802012dc r4 : 802012dc r3 : df805e40 r2 : 8027f6fc r1 : 00000010 r0 : 00000010 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 84ffdc80 DAC: 00000000 Call trace: frame pointer underflow [<803227f8>] (filter_irq_stacks) from [<809a0714>] (stack_depot_save_flags+0x28/0x778 lib/stackdepot.c:659) r5:874b9a40 r4:85c2e350 [<809a06ec>] (stack_depot_save_flags) from [<809a0e78>] (stack_depot_save+0x14/0x18 lib/stackdepot.c:739) r10:81c03d5c r9:2e07f816 r8:df805eb8 r7:00000019 r6:00000000 r5:874b9a40 r4:85c2e350 [<809a0e64>] (stack_depot_save) from [<809a1a98>] (ref_tracker_free+0x74/0x298 lib/ref_tracker.c:308) [<809a1a24>] (ref_tracker_free) from [<815db078>] (netdev_tracker_free include/linux/netdevice.h:4420 [inline]) [<809a1a24>] (ref_tracker_free) from [<815db078>] (netdev_put include/linux/netdevice.h:4437 [inline]) [<809a1a24>] (ref_tracker_free) from [<815db078>] (dst_destroy+0x4c/0x138 net/core/dst.c:114) r8:df805eb8 r7:00000019 r6:00000000 r5:85c2e000 r4:874ba800 [<815db02c>] (dst_destroy) from [<815db178>] (dst_destroy_rcu+0x14/0x18 net/core/dst.c:132) r7:00000019 r6:84640c00 r5:0000001a r4:874ba82c [<815db164>] (dst_destroy_rcu) from [<803044b0>] (rcu_do_batch+0x1cc/0x658 kernel/rcu/tree.c:2605) [<803042e4>] (rcu_do_batch) from [<8030762c>] (rcu_core+0x1d4/0x4e4 kernel/rcu/tree.c:2857) r10:84640c00 r9:5b720000 r8:8280c710 r7:84640c00 r6:82a6d9ac r5:ddde4c08 r4:ddde4bc0 [<80307458>] (rcu_core) from [<80307d38>] (rcu_core_si+0x10/0x14 kernel/rcu/tree.c:2874) r10:84640c00 r9:82804d80 r8:00000101 r7:00000009 r6:00000002 r5:00000002 r4:828040a4 [<80307d28>] (rcu_core_si) from [<8025b65c>] (handle_softirqs+0x140/0x458 kernel/softirq.c:622) [<8025b51c>] (handle_softirqs) from [<8025bad0>] (__do_softirq kernel/softirq.c:656 [inline]) [<8025b51c>] (handle_softirqs) from [<8025bad0>] (invoke_softirq kernel/softirq.c:496 [inline]) [<8025b51c>] (handle_softirqs) from [<8025bad0>] (__irq_exit_rcu+0x110/0x1d0 kernel/softirq.c:723) r10:82959c04 r9:84640c00 r8:00000000 r7:eb1ade60 r6:82444074 r5:8247f1f4 r4:84640c00 [<8025b9c0>] (__irq_exit_rcu) from [<8025be48>] (irq_exit+0x10/0x18 kernel/softirq.c:751) r5:8247f1f4 r4:826c3a9c [<8025be38>] (irq_exit) from [<81aae624>] (generic_handle_arch_irq+0x7c/0x80 kernel/irq/handle.c:295) [<81aae5a8>] (generic_handle_arch_irq) from [<81a7e5c4>] (call_with_stack+0x1c/0x20 arch/arm/lib/call_with_stack.S:40) r9:84640c00 r8:00000000 r7:eb1ade94 r6:ffffffff r5:60070013 r4:81abca50 [<81a7e5a8>] (call_with_stack) from [<80200bec>] (__irq_svc+0x8c/0xbc arch/arm/kernel/entry-armv.S:228) Exception stack(0xeb1ade60 to 0xeb1adea8) de60: 846eb840 60070013 00000000 0000097e 00000001 00000000 82959b68 00000117 de80: 00000000 00000001 82959c04 eb1adebc eb1adec0 eb1adeb0 80aa3928 81abca50 dea0: 60070013 ffffffff [<81abca28>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abca28>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abca28>] (_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 r4:84640c00 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5798 r7:84f21500 r6:84f21500 r5:84640c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb1adfb0 to 0xeb1adff8) 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 r4:84b71900