INFO: task kworker/0:5:4090 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:5 state:D stack:0 pid:4090 tgid:4090 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b05f8c>] (__schedule_loop kernel/sched/core.c:7267 [inline]) [<81b04afc>] (__schedule) from [<81b05f8c>] (schedule+0x2c/0x134 kernel/sched/core.c:7282) r10:ea435da4 r9:ea435dac r8:00000002 r7:60000113 r6:82ccfb50 r5:851ac980 r4:851ac980 [<81b05f60>] (schedule) from [<81b06118>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7339) r5:851ac980 r4:82ccfb4c [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock_common kernel/locking/mutex.c:712 [inline]) [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock.constprop.0+0x530/0xa88 kernel/locking/mutex.c:806) [<81b08cc4>] (__mutex_lock.constprop.0) from [<81b09820>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1100) r10:82a0b82c r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea435e28 r4:00000000 [<81b0980c>] (__mutex_lock_slowpath) from [<81b09860>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:305) [<81b09824>] (mutex_lock) from [<8050716c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2951) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302b005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85e93a80 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:851ac980 r8:00800000 r7:00000000 r6:8302b000 r5:00001000 r4:7f031000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:dfc0b000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:86882b8c r4:86882b8c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:dddd0e00 r6:8302b000 r5:86882b8c r4:86325480 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:00000000 r9:863254b0 r8:851ac980 r7:82a03d80 r6:dddd0e20 r5:dddd0e00 r4:86325480 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:df905e88 r8:8609a600 r7:86325480 r6:80276fb8 r5:851ac980 r4:86322f00 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea435fb0 to 0xea435ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:86322f00 INFO: task kworker/0:5:4090 is blocked on a mutex likely owned by task kworker/1:225:6778. task:kworker/1:225 state:R running task stack:0 pid:6778 tgid:6778 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b063c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7512) r10:82a0b880 r9:8659d5c0 r8:80200c04 r7:ea985d7c r6:ffffffff r5:8659d5c0 r4:00000000 [<81b06384>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea985d48 to 0xea985d90) 5d40: e2aca000 ec4f1000 00000000 80238790 82cceee0 82ccfb24 5d60: 7f02b000 ec4f1000 00000000 00000001 82a0b880 ea985dbc ec4f1000 ea985d98 5d80: 8022f6e0 802387a8 80000013 ffffffff r5:80000013 r4:802387a8 [<8022f680>] (flush_tlb_kernel_range) from [<80506f20>] (__purge_vmap_area_lazy+0x294/0x484 mm/vmalloc.c:2376) [<80506c8c>] (__purge_vmap_area_lazy) from [<805072f8>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2990) r10:00000000 r9:ea985de0 r8:00000000 r7:ffffffff r6:00000008 r5:ea985e28 r4:ea985de0 [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302ae05 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86313240 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:8659d5c0 r8:01800000 r7:00000000 r6:8302ae00 r5:00001000 r4:7f03b000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:e01d1000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:86428f8c r4:86428f8c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:ddde4e00 r6:8302ae00 r5:86428f8c r4:8681bc00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:ddde4e00 r9:8681bc30 r8:8659d5c0 r7:82a03d80 r6:ddde4e20 r5:ddde4e00 r4:8681bc00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea97de88 r8:862f1300 r7:8681bc00 r6:80276fb8 r5:8659d5c0 r4:862f2300 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea985fb0 to 0xea985ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:862f2300 INFO: task kworker/0:23:5471 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:23 state:D stack:0 pid:5471 tgid:5471 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b05f8c>] (__schedule_loop kernel/sched/core.c:7267 [inline]) [<81b04afc>] (__schedule) from [<81b05f8c>] (schedule+0x2c/0x134 kernel/sched/core.c:7282) r10:dfb8dda4 r9:dfb8ddac r8:00000002 r7:60000113 r6:82ccfb50 r5:846abd40 r4:846abd40 [<81b05f60>] (schedule) from [<81b06118>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7339) r5:846abd40 r4:82ccfb4c [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock_common kernel/locking/mutex.c:712 [inline]) [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock.constprop.0+0x530/0xa88 kernel/locking/mutex.c:806) [<81b08cc4>] (__mutex_lock.constprop.0) from [<81b09820>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1100) r10:82a0b82c r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb8de28 r4:00000000 [<81b0980c>] (__mutex_lock_slowpath) from [<81b09860>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:305) [<81b09824>] (mutex_lock) from [<8050716c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2951) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302b005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85e446c0 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:846abd40 r8:00800000 r7:00000000 r6:8302b000 r5:00001000 r4:7f02f000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:dfa8f000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:8673178c r4:8673178c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:dddd0e00 r6:8302b000 r5:8673178c r4:85e7ac00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:dddd0e00 r9:85e7ac30 r8:846abd40 r7:82a03d80 r6:dddd0e20 r5:dddd0e00 r4:85e7ac00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:dfbade88 r8:863ed500 r7:85e7ac00 r6:80276fb8 r5:846abd40 r4:86362900 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb8dfb0 to 0xdfb8dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:86362900 INFO: task kworker/0:23:5471 is blocked on a mutex likely owned by task kworker/1:225:6778. task:kworker/1:225 state:R running task stack:0 pid:6778 tgid:6778 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b063c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7512) r10:82a0b880 r9:8659d5c0 r8:80200c04 r7:ea985d7c r6:ffffffff r5:8659d5c0 r4:00000000 [<81b06384>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea985d48 to 0xea985d90) 5d40: e2bce000 ec4f1000 00000000 80238790 82cceee0 82ccfb24 5d60: 7f02b000 ec4f1000 00000000 00000001 82a0b880 ea985dbc ec4f1000 ea985d98 5d80: 8022f6e0 802387a8 80000013 ffffffff r5:80000013 r4:802387a8 [<8022f680>] (flush_tlb_kernel_range) from [<80506f20>] (__purge_vmap_area_lazy+0x294/0x484 mm/vmalloc.c:2376) [<80506c8c>] (__purge_vmap_area_lazy) from [<805072f8>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2990) r10:00000000 r9:ea985de0 r8:00000000 r7:ffffffff r6:00000008 r5:ea985e28 r4:ea985de0 [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302ae05 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86313240 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:8659d5c0 r8:01800000 r7:00000000 r6:8302ae00 r5:00001000 r4:7f03b000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:e01d1000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:86428f8c r4:86428f8c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:ddde4e00 r6:8302ae00 r5:86428f8c r4:8681bc00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:ddde4e00 r9:8681bc30 r8:8659d5c0 r7:82a03d80 r6:ddde4e20 r5:ddde4e00 r4:8681bc00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea97de88 r8:862f1300 r7:8681bc00 r6:80276fb8 r5:8659d5c0 r4:862f2300 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea985fb0 to 0xea985ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:862f2300 INFO: task kworker/0:24:5474 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:24 state:D stack:0 pid:5474 tgid:5474 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b05f8c>] (__schedule_loop kernel/sched/core.c:7267 [inline]) [<81b04afc>] (__schedule) from [<81b05f8c>] (schedule+0x2c/0x134 kernel/sched/core.c:7282) r10:dfc8dda4 r9:dfc8ddac r8:00000002 r7:60000013 r6:82ccfb50 r5:83993d40 r4:83993d40 [<81b05f60>] (schedule) from [<81b06118>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7339) r5:83993d40 r4:82ccfb4c [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock_common kernel/locking/mutex.c:712 [inline]) [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock.constprop.0+0x530/0xa88 kernel/locking/mutex.c:806) [<81b08cc4>] (__mutex_lock.constprop.0) from [<81b09820>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1100) r10:82a0b82c r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfc8de28 r4:00000000 [<81b0980c>] (__mutex_lock_slowpath) from [<81b09860>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:305) [<81b09824>] (mutex_lock) from [<8050716c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2951) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302b005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8671ea00 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:83993d40 r8:00800000 r7:00000000 r6:8302b000 r5:00001000 r4:7f035000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:dfc83000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:8688738c r4:8688738c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:dddd0e00 r6:8302b000 r5:8688738c r4:8631c080 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:00000000 r9:8631c0b0 r8:83993d40 r7:82a03d80 r6:dddd0e20 r5:dddd0e00 r4:8631c080 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:dfb8de88 r8:86327680 r7:8631c080 r6:80276fb8 r5:83993d40 r4:8638d400 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfc8dfb0 to 0xdfc8dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:8638d400 INFO: task kworker/0:24:5474 is blocked on a mutex likely owned by task kworker/1:225:6778. task:kworker/1:225 state:R running task stack:0 pid:6778 tgid:6778 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b063c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7512) r10:82a0b880 r9:8659d5c0 r8:80200c04 r7:ea985d7c r6:ffffffff r5:8659d5c0 r4:00000000 [<81b06384>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea985d48 to 0xea985d90) 5d40: e2e79000 ec4f1000 00000000 80238790 82cceee0 82ccfb24 5d60: 7f02b000 ec4f1000 00000000 00000001 82a0b880 ea985dbc ec4f1000 ea985d98 5d80: 8022f6e0 802387a8 80000013 ffffffff r5:80000013 r4:802387a8 [<8022f680>] (flush_tlb_kernel_range) from [<80506f20>] (__purge_vmap_area_lazy+0x294/0x484 mm/vmalloc.c:2376) [<80506c8c>] (__purge_vmap_area_lazy) from [<805072f8>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2990) r10:00000000 r9:ea985de0 r8:00000000 r7:ffffffff r6:00000008 r5:ea985e28 r4:ea985de0 [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302ae05 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86313240 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:8659d5c0 r8:01800000 r7:00000000 r6:8302ae00 r5:00001000 r4:7f03b000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:e01d1000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:86428f8c r4:86428f8c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:ddde4e00 r6:8302ae00 r5:86428f8c r4:8681bc00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:ddde4e00 r9:8681bc30 r8:8659d5c0 r7:82a03d80 r6:ddde4e20 r5:ddde4e00 r4:8681bc00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea97de88 r8:862f1300 r7:8681bc00 r6:80276fb8 r5:8659d5c0 r4:862f2300 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea985fb0 to 0xea985ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:862f2300 INFO: task kworker/0:26:5480 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:26 state:D stack:0 pid:5480 tgid:5480 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b05f8c>] (__schedule_loop kernel/sched/core.c:7267 [inline]) [<81b04afc>] (__schedule) from [<81b05f8c>] (schedule+0x2c/0x134 kernel/sched/core.c:7282) r10:dfbf9da4 r9:dfbf9dac r8:00000002 r7:60000013 r6:82ccfb50 r5:851aee40 r4:851aee40 [<81b05f60>] (schedule) from [<81b06118>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7339) r5:851aee40 r4:82ccfb4c [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock_common kernel/locking/mutex.c:712 [inline]) [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock.constprop.0+0x530/0xa88 kernel/locking/mutex.c:806) [<81b08cc4>] (__mutex_lock.constprop.0) from [<81b09820>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1100) r10:82a0b82c r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbf9e28 r4:00000000 [<81b0980c>] (__mutex_lock_slowpath) from [<81b09860>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:305) [<81b09824>] (mutex_lock) from [<8050716c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2951) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302b005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85e93fc0 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:851aee40 r8:00800000 r7:00000000 r6:8302b000 r5:00001000 r4:7f029000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:dfaaf000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:8633478c r4:8633478c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:dddd0e00 r6:8302b000 r5:8633478c r4:8639ba00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:dddd0e00 r9:8639ba30 r8:851aee40 r7:82a03d80 r6:dddd0e20 r5:dddd0e00 r4:8639ba00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:dfc91e88 r8:84c9b000 r7:8639ba00 r6:80276fb8 r5:851aee40 r4:8618d240 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbf9fb0 to 0xdfbf9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:8618d240 INFO: task kworker/0:26:5480 is blocked on a mutex likely owned by task kworker/1:225:6778. task:kworker/1:225 state:R running task stack:0 pid:6778 tgid:6778 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b063c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7512) r10:82a0b880 r9:8659d5c0 r8:80200c04 r7:ea985d7c r6:ffffffff r5:8659d5c0 r4:00000000 [<81b06384>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea985d48 to 0xea985d90) 5d40: e2e79000 ec4f1000 00000000 80238790 82cceee0 82ccfb24 5d60: 7f02b000 ec4f1000 00000000 00000001 82a0b880 ea985dbc ec4f1000 ea985d98 5d80: 8022f6e0 802387a8 80000013 ffffffff r5:80000013 r4:802387a8 [<8022f680>] (flush_tlb_kernel_range) from [<80506f20>] (__purge_vmap_area_lazy+0x294/0x484 mm/vmalloc.c:2376) [<80506c8c>] (__purge_vmap_area_lazy) from [<805072f8>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2990) r10:00000000 r9:ea985de0 r8:00000000 r7:ffffffff r6:00000008 r5:ea985e28 r4:ea985de0 [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302ae05 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86313240 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:8659d5c0 r8:01800000 r7:00000000 r6:8302ae00 r5:00001000 r4:7f03b000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:e01d1000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:86428f8c r4:86428f8c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:ddde4e00 r6:8302ae00 r5:86428f8c r4:8681bc00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:ddde4e00 r9:8681bc30 r8:8659d5c0 r7:82a03d80 r6:ddde4e20 r5:ddde4e00 r4:8681bc00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea97de88 r8:862f1300 r7:8681bc00 r6:80276fb8 r5:8659d5c0 r4:862f2300 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea985fb0 to 0xea985ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:862f2300 INFO: task kworker/0:27:5481 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:27 state:D stack:0 pid:5481 tgid:5481 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b05f8c>] (__schedule_loop kernel/sched/core.c:7267 [inline]) [<81b04afc>] (__schedule) from [<81b05f8c>] (schedule+0x2c/0x134 kernel/sched/core.c:7282) r10:dfcb5da4 r9:dfcb5dac r8:00000002 r7:60000013 r6:82ccfb50 r5:851ca4c0 r4:851ca4c0 [<81b05f60>] (schedule) from [<81b06118>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7339) r5:851ca4c0 r4:82ccfb4c [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock_common kernel/locking/mutex.c:712 [inline]) [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock.constprop.0+0x530/0xa88 kernel/locking/mutex.c:806) [<81b08cc4>] (__mutex_lock.constprop.0) from [<81b09820>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1100) r10:82a0b82c r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfcb5e28 r4:00000000 [<81b0980c>] (__mutex_lock_slowpath) from [<81b09860>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:305) [<81b09824>] (mutex_lock) from [<8050716c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2951) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302b005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85e03740 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:851ca4c0 r8:00800000 r7:00000000 r6:8302b000 r5:00001000 r4:7f00b000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:df843000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:8688238c r4:8688238c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:dddd0e00 r6:8302b000 r5:8688238c r4:85e16200 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:00000000 r9:85e16230 r8:851ca4c0 r7:82a03d80 r6:dddd0e20 r5:dddd0e00 r4:85e16200 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:dfc91e88 r8:84c9c080 r7:85e16200 r6:80276fb8 r5:851ca4c0 r4:8618d340 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcb5fb0 to 0xdfcb5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:8618d340 INFO: task kworker/0:27:5481 is blocked on a mutex likely owned by task kworker/1:225:6778. task:kworker/1:225 state:R running task stack:0 pid:6778 tgid:6778 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b063c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7512) r10:82a0b880 r9:8659d5c0 r8:80200c04 r7:ea985d7c r6:ffffffff r5:8659d5c0 r4:00000000 [<81b06384>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea985d48 to 0xea985d90) 5d40: e3145000 ec4f1000 00000000 80238790 82cceee0 82ccfb24 5d60: 7f02b000 ec4f1000 00000000 00000001 82a0b880 ea985dbc ec4f1000 ea985d98 5d80: 8022f6e0 802387a8 80000013 ffffffff r5:80000013 r4:802387a8 [<8022f680>] (flush_tlb_kernel_range) from [<80506f20>] (__purge_vmap_area_lazy+0x294/0x484 mm/vmalloc.c:2376) [<80506c8c>] (__purge_vmap_area_lazy) from [<805072f8>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2990) r10:00000000 r9:ea985de0 r8:00000000 r7:ffffffff r6:00000008 r5:ea985e28 r4:ea985de0 [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302ae05 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86313240 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:8659d5c0 r8:01800000 r7:00000000 r6:8302ae00 r5:00001000 r4:7f03b000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:e01d1000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:86428f8c r4:86428f8c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:ddde4e00 r6:8302ae00 r5:86428f8c r4:8681bc00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:ddde4e00 r9:8681bc30 r8:8659d5c0 r7:82a03d80 r6:ddde4e20 r5:ddde4e00 r4:8681bc00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea97de88 r8:862f1300 r7:8681bc00 r6:80276fb8 r5:8659d5c0 r4:862f2300 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea985fb0 to 0xea985ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:862f2300 INFO: task kworker/0:29:5489 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:29 state:D stack:0 pid:5489 tgid:5489 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b05f8c>] (__schedule_loop kernel/sched/core.c:7267 [inline]) [<81b04afc>] (__schedule) from [<81b05f8c>] (schedule+0x2c/0x134 kernel/sched/core.c:7282) r10:dfae1da4 r9:dfae1dac r8:00000002 r7:60000013 r6:82ccfb50 r5:839824c0 r4:839824c0 [<81b05f60>] (schedule) from [<81b06118>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7339) r5:839824c0 r4:82ccfb4c [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock_common kernel/locking/mutex.c:712 [inline]) [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock.constprop.0+0x530/0xa88 kernel/locking/mutex.c:806) [<81b08cc4>] (__mutex_lock.constprop.0) from [<81b09820>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1100) r10:82a0b82c r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfae1e28 r4:00000000 [<81b0980c>] (__mutex_lock_slowpath) from [<81b09860>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:305) [<81b09824>] (mutex_lock) from [<8050716c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2951) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302b005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8639f980 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:839824c0 r8:00800000 r7:00000000 r6:8302b000 r5:00001000 r4:7f02b000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:dfb19000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:86881b8c r4:86881b8c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:dddd0e00 r6:8302b000 r5:86881b8c r4:8606c000 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:00000000 r9:8606c030 r8:839824c0 r7:82a03d80 r6:dddd0e20 r5:dddd0e00 r4:8606c000 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:dfcdde88 r8:85eb2d80 r7:8606c000 r6:80276fb8 r5:839824c0 r4:863ecf00 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfae1fb0 to 0xdfae1ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:863ecf00 INFO: task kworker/0:29:5489 is blocked on a mutex likely owned by task kworker/1:225:6778. task:kworker/1:225 state:R running task stack:0 pid:6778 tgid:6778 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b063c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7512) r10:82a0b880 r9:8659d5c0 r8:80200c04 r7:ea985d7c r6:ffffffff r5:8659d5c0 r4:00000000 [<81b06384>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea985d48 to 0xea985d90) 5d40: e3145000 ec4f1000 00000000 80238790 82cceee0 82ccfb24 5d60: 7f02b000 ec4f1000 00000000 00000001 82a0b880 ea985dbc ec4f1000 ea985d98 5d80: 8022f6e0 802387a8 80000013 ffffffff r5:80000013 r4:802387a8 [<8022f680>] (flush_tlb_kernel_range) from [<80506f20>] (__purge_vmap_area_lazy+0x294/0x484 mm/vmalloc.c:2376) [<80506c8c>] (__purge_vmap_area_lazy) from [<805072f8>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2990) r10:00000000 r9:ea985de0 r8:00000000 r7:ffffffff r6:00000008 r5:ea985e28 r4:ea985de0 [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302ae05 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86313240 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:8659d5c0 r8:01800000 r7:00000000 r6:8302ae00 r5:00001000 r4:7f03b000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:e01d1000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:86428f8c r4:86428f8c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:ddde4e00 r6:8302ae00 r5:86428f8c r4:8681bc00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:ddde4e00 r9:8681bc30 r8:8659d5c0 r7:82a03d80 r6:ddde4e20 r5:ddde4e00 r4:8681bc00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea97de88 r8:862f1300 r7:8681bc00 r6:80276fb8 r5:8659d5c0 r4:862f2300 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea985fb0 to 0xea985ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:862f2300 INFO: task kworker/0:205:6391 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:205 state:D stack:0 pid:6391 tgid:6391 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b05f8c>] (__schedule_loop kernel/sched/core.c:7267 [inline]) [<81b04afc>] (__schedule) from [<81b05f8c>] (schedule+0x2c/0x134 kernel/sched/core.c:7282) r10:ea6ddda4 r9:ea6dddac r8:00000002 r7:60000113 r6:82ccfb50 r5:864c55c0 r4:864c55c0 [<81b05f60>] (schedule) from [<81b06118>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7339) r5:864c55c0 r4:82ccfb4c [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock_common kernel/locking/mutex.c:712 [inline]) [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock.constprop.0+0x530/0xa88 kernel/locking/mutex.c:806) [<81b08cc4>] (__mutex_lock.constprop.0) from [<81b09820>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1100) r10:82a0b82c r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6dde28 r4:00000000 [<81b0980c>] (__mutex_lock_slowpath) from [<81b09860>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:305) [<81b09824>] (mutex_lock) from [<8050716c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2951) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302b005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:860ae9c0 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:864c55c0 r8:00800000 r7:00000000 r6:8302b000 r5:00001000 r4:7f033000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:dfd6d000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:8688338c r4:8688338c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:dddd0e00 r6:8302b000 r5:8688338c r4:86711100 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:00000000 r9:86711130 r8:864c55c0 r7:82a03d80 r6:dddd0e20 r5:dddd0e00 r4:86711100 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea715e88 r8:86711680 r7:86711100 r6:80276fb8 r5:864c55c0 r4:8618da80 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea6ddfb0 to 0xea6ddff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:8618da80 INFO: task kworker/0:205:6391 is blocked on a mutex likely owned by task kworker/1:225:6778. task:kworker/1:225 state:R running task stack:0 pid:6778 tgid:6778 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b063c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7512) r10:82a0b880 r9:8659d5c0 r8:80200c04 r7:ea985d7c r6:ffffffff r5:8659d5c0 r4:00000000 [<81b06384>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea985d48 to 0xea985d90) 5d40: e3360000 ec4f1000 00000000 80238790 82cceee0 82ccfb24 5d60: 7f02b000 ec4f1000 00000000 00000001 82a0b880 ea985dbc ec4f1000 ea985d98 5d80: 8022f6e0 802387a8 80000013 ffffffff r5:80000013 r4:802387a8 [<8022f680>] (flush_tlb_kernel_range) from [<80506f20>] (__purge_vmap_area_lazy+0x294/0x484 mm/vmalloc.c:2376) [<80506c8c>] (__purge_vmap_area_lazy) from [<805072f8>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2990) r10:00000000 r9:ea985de0 r8:00000000 r7:ffffffff r6:00000008 r5:ea985e28 r4:ea985de0 [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302ae05 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86313240 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:8659d5c0 r8:01800000 r7:00000000 r6:8302ae00 r5:00001000 r4:7f03b000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:e01d1000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:86428f8c r4:86428f8c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:ddde4e00 r6:8302ae00 r5:86428f8c r4:8681bc00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:ddde4e00 r9:8681bc30 r8:8659d5c0 r7:82a03d80 r6:ddde4e20 r5:ddde4e00 r4:8681bc00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea97de88 r8:862f1300 r7:8681bc00 r6:80276fb8 r5:8659d5c0 r4:862f2300 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea985fb0 to 0xea985ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:862f2300 INFO: task kworker/0:207:6506 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:207 state:D stack:0 pid:6506 tgid:6506 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b05f8c>] (__schedule_loop kernel/sched/core.c:7267 [inline]) [<81b04afc>] (__schedule) from [<81b05f8c>] (schedule+0x2c/0x134 kernel/sched/core.c:7282) r10:ea7c5da4 r9:ea7c5dac r8:00000002 r7:60000013 r6:82ccfb50 r5:863f55c0 r4:863f55c0 [<81b05f60>] (schedule) from [<81b06118>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7339) r5:863f55c0 r4:82ccfb4c [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock_common kernel/locking/mutex.c:712 [inline]) [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock.constprop.0+0x530/0xa88 kernel/locking/mutex.c:806) [<81b08cc4>] (__mutex_lock.constprop.0) from [<81b09820>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1100) r10:82a0b82c r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea7c5e28 r4:00000000 [<81b0980c>] (__mutex_lock_slowpath) from [<81b09860>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:305) [<81b09824>] (mutex_lock) from [<8050716c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2951) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302b005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85e93c40 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:863f55c0 r8:00800000 r7:00000000 r6:8302b000 r5:00001000 r4:7f02d000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:dfba9000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:8688178c r4:8688178c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:dddd0e00 r6:8302b000 r5:8688178c r4:86797b00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:00000000 r9:86797b30 r8:863f55c0 r7:82a03d80 r6:dddd0e20 r5:dddd0e00 r4:86797b00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea7a5e88 r8:86797600 r7:86797b00 r6:80276fb8 r5:863f55c0 r4:85fd2100 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea7c5fb0 to 0xea7c5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:85fd2100 INFO: task kworker/0:207:6506 is blocked on a mutex likely owned by task kworker/1:225:6778. task:kworker/1:225 state:R running task stack:0 pid:6778 tgid:6778 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b063c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7512) r10:82a0b880 r9:8659d5c0 r8:80200c04 r7:ea985d7c r6:ffffffff r5:8659d5c0 r4:00000000 [<81b06384>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea985d48 to 0xea985d90) 5d40: e3635000 ec4f1000 00000000 80238790 82cceee0 82ccfb24 5d60: 7f02b000 ec4f1000 00000000 00000001 82a0b880 ea985dbc ec4f1000 ea985d98 5d80: 8022f6e0 802387a8 80000013 ffffffff r5:80000013 r4:802387a8 [<8022f680>] (flush_tlb_kernel_range) from [<80506f20>] (__purge_vmap_area_lazy+0x294/0x484 mm/vmalloc.c:2376) [<80506c8c>] (__purge_vmap_area_lazy) from [<805072f8>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2990) r10:00000000 r9:ea985de0 r8:00000000 r7:ffffffff r6:00000008 r5:ea985e28 r4:ea985de0 [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302ae05 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86313240 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:8659d5c0 r8:01800000 r7:00000000 r6:8302ae00 r5:00001000 r4:7f03b000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:e01d1000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:86428f8c r4:86428f8c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:ddde4e00 r6:8302ae00 r5:86428f8c r4:8681bc00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:ddde4e00 r9:8681bc30 r8:8659d5c0 r7:82a03d80 r6:ddde4e20 r5:ddde4e00 r4:8681bc00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea97de88 r8:862f1300 r7:8681bc00 r6:80276fb8 r5:8659d5c0 r4:862f2300 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea985fb0 to 0xea985ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:862f2300 INFO: task kworker/0:227:6949 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:227 state:D stack:0 pid:6949 tgid:6949 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b05f8c>] (__schedule_loop kernel/sched/core.c:7267 [inline]) [<81b04afc>] (__schedule) from [<81b05f8c>] (schedule+0x2c/0x134 kernel/sched/core.c:7282) r10:eab35da4 r9:eab35dac r8:00000002 r7:60000013 r6:82ccfb50 r5:86510c40 r4:86510c40 [<81b05f60>] (schedule) from [<81b06118>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7339) r5:86510c40 r4:82ccfb4c [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock_common kernel/locking/mutex.c:712 [inline]) [<81b06100>] (schedule_preempt_disabled) from [<81b091f4>] (__mutex_lock.constprop.0+0x530/0xa88 kernel/locking/mutex.c:806) [<81b08cc4>] (__mutex_lock.constprop.0) from [<81b09820>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1100) r10:82a0b82c r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab35e28 r4:00000000 [<81b0980c>] (__mutex_lock_slowpath) from [<81b09860>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:305) [<81b09824>] (mutex_lock) from [<8050716c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2951) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302b005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c0f480 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:86510c40 r8:00800000 r7:00000000 r6:8302b000 r5:00001000 r4:7f00d000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:df98d000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:8634078c r4:8634078c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:dddd0e00 r6:8302b000 r5:8634078c r4:86156380 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:00000000 r9:861563b0 r8:86510c40 r7:82a03d80 r6:dddd0e20 r5:dddd0e00 r4:86156380 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:dfc6de88 r8:867e7f80 r7:86156380 r6:80276fb8 r5:86510c40 r4:8618d7c0 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab35fb0 to 0xeab35ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:8618d7c0 INFO: task kworker/0:227:6949 is blocked on a mutex likely owned by task kworker/1:225:6778. task:kworker/1:225 state:R running task stack:0 pid:6778 tgid:6778 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81b04afc>] (__schedule) from [<81b063c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7512) r10:82a0b880 r9:8659d5c0 r8:80200c04 r7:ea985d7c r6:ffffffff r5:8659d5c0 r4:00000000 [<81b06384>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea985d48 to 0xea985d90) 5d40: e3763000 ec4f1000 00000000 80238790 82cceee0 82ccfb24 5d60: 7f02b000 ec4f1000 00000000 00000001 82a0b880 ea985dbc ec4f1000 ea985d98 5d80: 8022f6e0 802387a8 80000013 ffffffff r5:80000013 r4:802387a8 [<8022f680>] (flush_tlb_kernel_range) from [<80506f20>] (__purge_vmap_area_lazy+0x294/0x484 mm/vmalloc.c:2376) [<80506c8c>] (__purge_vmap_area_lazy) from [<805072f8>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2990) r10:00000000 r9:ea985de0 r8:00000000 r7:ffffffff r6:00000008 r5:ea985e28 r4:ea985de0 [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vm_reset_perms mm/vmalloc.c:3382 [inline]) [<80507110>] (_vm_unmap_aliases) from [<8050af60>] (vfree+0x168/0x1d8 mm/vmalloc.c:3461) r10:8302ae05 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86313240 r4:00000000 [<8050adf8>] (vfree) from [<8057a740>] (execmem_free+0x30/0x50 mm/execmem.c:506) r9:8659d5c0 r8:01800000 r7:00000000 r6:8302ae00 r5:00001000 r4:7f03b000 [<8057a710>] (execmem_free) from [<803d0c3c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1070) r5:00001000 r4:e01d1000 [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_binary_free kernel/bpf/core.c:1116 [inline]) [<803d0c2c>] (bpf_jit_free_exec) from [<803d101c>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1239) [<803d0fb8>] (bpf_jit_free) from [<803d20c4>] (bpf_prog_free_deferred+0x148/0x160 kernel/bpf/core.c:3029) r5:86428f8c r4:86428f8c [<803d1f7c>] (bpf_prog_free_deferred) from [<80276360>] (process_one_work+0x1c8/0x5a0 kernel/workqueue.c:3302) r7:ddde4e00 r6:8302ae00 r5:86428f8c r4:8681bc00 [<80276198>] (process_one_work) from [<80277124>] (process_scheduled_works kernel/workqueue.c:3385 [inline]) [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3466) r10:ddde4e00 r9:8681bc30 r8:8659d5c0 r7:82a03d80 r6:ddde4e20 r5:ddde4e00 r4:8681bc00 [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea97de88 r8:862f1300 r7:8681bc00 r6:80276fb8 r5:8659d5c0 r4:862f2300 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea985fb0 to 0xea985ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:862f2300 NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 29 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a14>] (dump_backtrace) from [<80201b08>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:600c0093 r6:600c0093 r5:8231b914 r4:00000000 [<80201af0>] (show_stack) from [<8021e320>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201af0>] (show_stack) from [<8021e320>] (dump_stack_lvl+0x5c/0x70 lib/dump_stack.c:120) [<8021e2c4>] (dump_stack_lvl) from [<8021e34c>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r7:00000000 r6:000c0013 r5:00000001 r4:00000001 [<8021e334>] (dump_stack) from [<81aee3d4>] (nmi_cpu_backtrace+0x150/0x170 lib/nmi_backtrace.c:113) [<81aee284>] (nmi_cpu_backtrace) from [<81aee524>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:82a0b550 r5:82a19f34 r4:ffffffff [<81aee3f4>] (nmi_trigger_cpumask_backtrace) from [<8022f104>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:82a0b6d8 r8:00000009 r7:00000048 r6:82cc2de4 r5:00007a62 r4:00000048 [<8022f0ec>] (arch_trigger_cpumask_backtrace) from [<81af6070>] (trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]) [<8022f0ec>] (arch_trigger_cpumask_backtrace) from [<81af6070>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f0ec>] (arch_trigger_cpumask_backtrace) from [<81af6070>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81af6008>] (sys_info) from [<80385d58>] (check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]) [<81af6008>] (sys_info) from [<80385d58>] (watchdog+0x3a0/0x84c kernel/hung_task.c:561) r5:00007a62 r4:0000000a [<803859b8>] (watchdog) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:df819e58 r8:83352680 r7:00000000 r6:803859b8 r5:833a0c40 r4:831f7480 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8d5fb0 to 0xdf8d5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:831f7480 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2820 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:179 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:198 LR is at spin_unlock_irqrestore include/linux/spinlock.h:408 [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:2668 pc : [<81b0f394>] lr : [<80add268>] psr: 60000113 sp : eb2f9ec8 ip : eb2f9ed8 fp : eb2f9ed4 r10: 82b591a4 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 82b59108 r5 : 00000000 r4 : 00000001 r3 : 00000802 r2 : 00000000 r1 : 60000113 r0 : 844a3840 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 863024c0 DAC: fffffffd Call trace: [<81b0f36c>] (_raw_spin_unlock_irqrestore) from [<80add268>] (spin_unlock_irqrestore include/linux/spinlock.h:408 [inline]) [<81b0f36c>] (_raw_spin_unlock_irqrestore) from [<80add268>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81b0f36c>] (_raw_spin_unlock_irqrestore) from [<80add268>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2668) [<80add248>] (pl011_console_device_unlock) from [<802e68a8>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1165) [<802e6820>] (nbcon_emit_one) from [<802e6b28>] (nbcon_kthread_func+0x208/0x2ec kernel/printk/nbcon.c:1271) r6:82cbf2d4 r5:82b59108 r4:851cb100 [<802e6920>] (nbcon_kthread_func) from [<8028117c>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:df93db38 r8:84f9c100 r7:82b59108 r6:802e6920 r5:851cb100 r4:8330f1c0 [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb2f9fb0 to 0xeb2f9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:8330f1c0