INFO: task kworker/0:9:15236 blocked for more than 430 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:9 state:D stack:0 pid:15236 tgid:15236 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81c14514>] (__schedule) from [<81c15a2c>] (__schedule_loop kernel/sched/core.c:7466 [inline]) [<81c14514>] (__schedule) from [<81c15a2c>] (schedule+0x2c/0xec kernel/sched/core.c:7481) r10:ea9b9d84 r9:ea9b9d8c r8:00000002 r7:60000013 r6:836dd000 r5:8459cc80 r4:8459cc80 [<81c15a00>] (schedule) from [<81c15b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7538) r5:8459cc80 r4:836dcffc [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock_common kernel/locking/mutex.c:726 [inline]) [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock.constprop.0+0x50c/0xa58 kernel/locking/mutex.c:821) [<81c17ea0>] (__mutex_lock.constprop.0) from [<81c189cc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1164) r10:8340b48c r9:00800000 r8:00000000 r7:ffffffff r6:00000000 r5:ea9b9e08 r4:8ba45e40 [<81c189b8>] (__mutex_lock_slowpath) from [<81c18a0c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:319) [<81c189d0>] (mutex_lock) from [<8054d70c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:3006) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:8ba45e40 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:00000000 r7:00000000 r6:8cd427a8 r5:00001000 r4:7f268000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:ea889000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:8cd427a8 r4:87159a80 [<803e69e4>] (bpf_prog_free_images) from [<803e7d0c>] (bpf_prog_free_deferred+0x198/0x1bc kernel/bpf/core.c:3203) r7:00000000 r6:8cd427a8 r5:8cd42400 r4:87159a80 [<803e7b74>] (bpf_prog_free_deferred) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r9:00800000 r8:8459cc80 r7:dddcf740 r6:83c2b000 r5:8cd427a8 r4:87159a80 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:87159ab0 r8:8459cc80 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:87159a80 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:e0311e88 r8:87303600 r7:87159a80 r6:802799e4 r5:8459cc80 r4:8ba7dfc0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea9b9fb0 to 0xea9b9ff8) 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 r5:8028467c r4:8ba7dfc0 INFO: task kworker/0:9:15236 is blocked on a mutex likely owned by task kworker/0:13:18880. task:kworker/0:13 state:R running task stack:0 pid:18880 tgid:18880 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15e1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7669) r10:8340b4e0 r9:84d11980 r8:80200c04 r7:ea489d84 r6:ffffffff r5:84d11980 r4:00000000 [<81c15ddc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea489d50 to 0xea489d98) 9d40: 9918e000 ead3d000 00000000 802398cc 9d60: 836dc394 836dcfd8 7f296000 ead3d000 00000000 00000001 8340b4e0 ea489dc4 9d80: ead3d000 ea489da0 802306fc 802398e4 800d0013 ffffffff r5:800d0013 r4:802398e4 [<8023069c>] (flush_tlb_kernel_range) from [<8054d4c0>] (__purge_vmap_area_lazy+0x28c/0x47c mm/vmalloc.c:2404) [<8054d234>] (__purge_vmap_area_lazy) from [<8054d898>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:3045) r10:00000000 r9:ea489de8 r8:00000000 r7:ffffffff r6:00000008 r5:ea489e30 r4:ea489de8 [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:868d1580 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:84d11980 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f23e000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e43dd000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbdba8 r4:8cf2cb00 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbdba8 r4:8cf2cb00 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:8cf2cb30 r8:84d11980 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cf2cb00 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea9b9e88 r8:86d83500 r7:8cf2cb00 r6:802799e4 r5:84d11980 r4:86fd66c0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea489fb0 to 0xea489ff8) 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 r5:8028467c r4:86fd66c0 INFO: task kworker/0:10:18826 blocked for more than 430 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:10 state:D stack:0 pid:18826 tgid:18826 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15a2c>] (__schedule_loop kernel/sched/core.c:7466 [inline]) [<81c14514>] (__schedule) from [<81c15a2c>] (schedule+0x2c/0xec kernel/sched/core.c:7481) r10:ea87ddac r9:ea87ddb4 r8:00000002 r7:60000113 r6:836dd000 r5:83d93300 r4:83d93300 [<81c15a00>] (schedule) from [<81c15b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7538) r5:83d93300 r4:836dcffc [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock_common kernel/locking/mutex.c:726 [inline]) [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock.constprop.0+0x50c/0xa58 kernel/locking/mutex.c:821) [<81c17ea0>] (__mutex_lock.constprop.0) from [<81c189cc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1164) r10:8340b48c r9:00800000 r8:00000000 r7:ffffffff r6:00000000 r5:ea87de30 r4:865bcc80 [<81c189b8>] (__mutex_lock_slowpath) from [<81c18a0c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:319) [<81c189d0>] (mutex_lock) from [<8054d70c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:3006) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:865bcc80 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:83d93300 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f242000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e8445000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbf7a8 r4:87094a80 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbf7a8 r4:87094a80 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:00000000 r9:87094ab0 r8:83d93300 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:87094a80 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:e0169e88 r8:86b77f80 r7:87094a80 r6:802799e4 r5:83d93300 r4:86f7b2c0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea87dfb0 to 0xea87dff8) 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 r5:8028467c r4:86f7b2c0 INFO: task kworker/0:10:18826 is blocked on a mutex likely owned by task kworker/0:13:18880. task:kworker/0:13 state:R running task stack:0 pid:18880 tgid:18880 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15e1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7669) r10:8340b4e0 r9:84d11980 r8:80200c04 r7:ea489d84 r6:ffffffff r5:84d11980 r4:00000000 [<81c15ddc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea489d50 to 0xea489d98) 9d40: 9980d000 ead3d000 00000000 802398cc 9d60: 836dc394 836dcfd8 7f296000 ead3d000 00000000 00000001 8340b4e0 ea489dc4 9d80: ead3d000 ea489da0 802306fc 802398e4 800d0013 ffffffff r5:800d0013 r4:802398e4 [<8023069c>] (flush_tlb_kernel_range) from [<8054d4c0>] (__purge_vmap_area_lazy+0x28c/0x47c mm/vmalloc.c:2404) [<8054d234>] (__purge_vmap_area_lazy) from [<8054d898>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:3045) r10:00000000 r9:ea489de8 r8:00000000 r7:ffffffff r6:00000008 r5:ea489e30 r4:ea489de8 [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:868d1580 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:84d11980 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f23e000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e43dd000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbdba8 r4:8cf2cb00 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbdba8 r4:8cf2cb00 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:8cf2cb30 r8:84d11980 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cf2cb00 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea9b9e88 r8:86d83500 r7:8cf2cb00 r6:802799e4 r5:84d11980 r4:86fd66c0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea489fb0 to 0xea489ff8) 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 r5:8028467c r4:86fd66c0 INFO: task kworker/0:14:18921 blocked for more than 431 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:14 state:D stack:0 pid:18921 tgid:18921 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81c14514>] (__schedule) from [<81c15a2c>] (__schedule_loop kernel/sched/core.c:7466 [inline]) [<81c14514>] (__schedule) from [<81c15a2c>] (schedule+0x2c/0xec kernel/sched/core.c:7481) r10:dfb01d84 r9:dfb01d8c r8:00000002 r7:600f0013 r6:836dd000 r5:84ce8cc0 r4:84ce8cc0 [<81c15a00>] (schedule) from [<81c15b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7538) r5:84ce8cc0 r4:836dcffc [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock_common kernel/locking/mutex.c:726 [inline]) [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock.constprop.0+0x50c/0xa58 kernel/locking/mutex.c:821) [<81c17ea0>] (__mutex_lock.constprop.0) from [<81c189cc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1164) r10:8340b48c r9:00800000 r8:00000000 r7:ffffffff r6:00000000 r5:dfb01e08 r4:868d8580 [<81c189b8>] (__mutex_lock_slowpath) from [<81c18a0c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:319) [<81c189d0>] (mutex_lock) from [<8054d70c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:3006) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:868d8580 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:00000000 r7:00000000 r6:8ce2b3a8 r5:00001000 r4:7f254000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:ea4f3000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:8ce2b3a8 r4:86a24380 [<803e69e4>] (bpf_prog_free_images) from [<803e7d0c>] (bpf_prog_free_deferred+0x198/0x1bc kernel/bpf/core.c:3203) r7:00000000 r6:8ce2b3a8 r5:8ce2b000 r4:86a24380 [<803e7b74>] (bpf_prog_free_deferred) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r9:00800000 r8:84ce8cc0 r7:dddcf740 r6:83c2b000 r5:8ce2b3a8 r4:86a24380 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:86a243b0 r8:84ce8cc0 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:86a24380 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea489e88 r8:8cfa5980 r7:86a24380 r6:802799e4 r5:84ce8cc0 r4:86fe9f40 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb01fb0 to 0xdfb01ff8) 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 r5:8028467c r4:86fe9f40 INFO: task kworker/0:14:18921 is blocked on a mutex likely owned by task kworker/0:13:18880. task:kworker/0:13 state:R running task stack:0 pid:18880 tgid:18880 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15e1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7669) r10:8340b4e0 r9:84d11980 r8:80200c04 r7:ea489d84 r6:ffffffff r5:84d11980 r4:00000000 [<81c15ddc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea489d50 to 0xea489d98) 9d40: 9980d000 ead3d000 00000000 802398cc 9d60: 836dc394 836dcfd8 7f296000 ead3d000 00000000 00000001 8340b4e0 ea489dc4 9d80: ead3d000 ea489da0 802306fc 802398e4 800d0013 ffffffff r5:800d0013 r4:802398e4 [<8023069c>] (flush_tlb_kernel_range) from [<8054d4c0>] (__purge_vmap_area_lazy+0x28c/0x47c mm/vmalloc.c:2404) [<8054d234>] (__purge_vmap_area_lazy) from [<8054d898>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:3045) r10:00000000 r9:ea489de8 r8:00000000 r7:ffffffff r6:00000008 r5:ea489e30 r4:ea489de8 [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:868d1580 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:84d11980 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f23e000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e43dd000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbdba8 r4:8cf2cb00 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbdba8 r4:8cf2cb00 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:8cf2cb30 r8:84d11980 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cf2cb00 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea9b9e88 r8:86d83500 r7:8cf2cb00 r6:802799e4 r5:84d11980 r4:86fd66c0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea489fb0 to 0xea489ff8) 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 r5:8028467c r4:86fd66c0 INFO: task kworker/0:3:20366 blocked for more than 431 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:0 pid:20366 tgid:20366 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15a2c>] (__schedule_loop kernel/sched/core.c:7466 [inline]) [<81c14514>] (__schedule) from [<81c15a2c>] (schedule+0x2c/0xec kernel/sched/core.c:7481) r10:dfbc5dac r9:dfbc5db4 r8:00000002 r7:60010113 r6:836dd000 r5:85cde600 r4:85cde600 [<81c15a00>] (schedule) from [<81c15b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7538) r5:85cde600 r4:836dcffc [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock_common kernel/locking/mutex.c:726 [inline]) [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock.constprop.0+0x50c/0xa58 kernel/locking/mutex.c:821) [<81c17ea0>] (__mutex_lock.constprop.0) from [<81c189cc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1164) r10:8340b48c r9:00800000 r8:00000000 r7:ffffffff r6:00000000 r5:dfbc5e30 r4:8ba39cc0 [<81c189b8>] (__mutex_lock_slowpath) from [<81c18a0c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:319) [<81c189d0>] (mutex_lock) from [<8054d70c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:3006) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:8ba39cc0 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:85cde600 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f240000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e43fd000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:86766fa8 r4:85428000 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:86766fa8 r4:85428000 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:85428030 r8:85cde600 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:85428000 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:dfb01e88 r8:86a24980 r7:85428000 r6:802799e4 r5:85cde600 r4:86e8bb40 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbc5fb0 to 0xdfbc5ff8) 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 r5:8028467c r4:86e8bb40 INFO: task kworker/0:3:20366 is blocked on a mutex likely owned by task kworker/0:13:18880. task:kworker/0:13 state:R running task stack:0 pid:18880 tgid:18880 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15e1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7669) r10:8340b4e0 r9:84d11980 r8:80200c04 r7:ea489d84 r6:ffffffff r5:84d11980 r4:00000000 [<81c15ddc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea489d50 to 0xea489d98) 9d40: 99a02000 ead3d000 00000000 802398cc 9d60: 836dc394 836dcfd8 7f296000 ead3d000 00000000 00000001 8340b4e0 ea489dc4 9d80: ead3d000 ea489da0 802306fc 802398e4 800d0013 ffffffff r5:800d0013 r4:802398e4 [<8023069c>] (flush_tlb_kernel_range) from [<8054d4c0>] (__purge_vmap_area_lazy+0x28c/0x47c mm/vmalloc.c:2404) [<8054d234>] (__purge_vmap_area_lazy) from [<8054d898>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:3045) r10:00000000 r9:ea489de8 r8:00000000 r7:ffffffff r6:00000008 r5:ea489e30 r4:ea489de8 [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:868d1580 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:84d11980 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f23e000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e43dd000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbdba8 r4:8cf2cb00 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbdba8 r4:8cf2cb00 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:8cf2cb30 r8:84d11980 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cf2cb00 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea9b9e88 r8:86d83500 r7:8cf2cb00 r6:802799e4 r5:84d11980 r4:86fd66c0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea489fb0 to 0xea489ff8) 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 r5:8028467c r4:86fd66c0 INFO: task kworker/0:12:21255 blocked for more than 431 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:12 state:D stack:0 pid:21255 tgid:21255 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15a2c>] (__schedule_loop kernel/sched/core.c:7466 [inline]) [<81c14514>] (__schedule) from [<81c15a2c>] (schedule+0x2c/0xec kernel/sched/core.c:7481) r10:dfae5dac r9:dfae5db4 r8:00000002 r7:60090013 r6:836dd000 r5:85c18cc0 r4:85c18cc0 [<81c15a00>] (schedule) from [<81c15b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7538) r5:85c18cc0 r4:836dcffc [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock_common kernel/locking/mutex.c:726 [inline]) [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock.constprop.0+0x50c/0xa58 kernel/locking/mutex.c:821) [<81c17ea0>] (__mutex_lock.constprop.0) from [<81c189cc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1164) r10:8340b48c r9:00800000 r8:00000000 r7:ffffffff r6:00000000 r5:dfae5e30 r4:8b9df300 [<81c189b8>] (__mutex_lock_slowpath) from [<81c18a0c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:319) [<81c189d0>] (mutex_lock) from [<8054d70c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:3006) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:8b9df300 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:85c18cc0 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f246000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:dfdef000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbafa8 r4:86ba5f00 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbafa8 r4:86ba5f00 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:86ba5f30 r8:85c18cc0 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:86ba5f00 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:dfc71e88 r8:86f8e880 r7:86ba5f00 r6:802799e4 r5:85c18cc0 r4:86985c40 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfae5fb0 to 0xdfae5ff8) 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 r5:8028467c r4:86985c40 INFO: task kworker/0:12:21255 is blocked on a mutex likely owned by task kworker/0:13:18880. task:kworker/0:13 state:R running task stack:0 pid:18880 tgid:18880 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15e1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7669) r10:8340b4e0 r9:84d11980 r8:80200c04 r7:ea489d84 r6:ffffffff r5:84d11980 r4:00000000 [<81c15ddc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea489d50 to 0xea489d98) 9d40: 99fd8000 ead3d000 00000000 802398cc 9d60: 836dc394 836dcfd8 7f296000 ead3d000 00000000 00000001 8340b4e0 ea489dc4 9d80: ead3d000 ea489da0 802306fc 802398e4 800d0013 ffffffff r5:800d0013 r4:802398e4 [<8023069c>] (flush_tlb_kernel_range) from [<8054d4c0>] (__purge_vmap_area_lazy+0x28c/0x47c mm/vmalloc.c:2404) [<8054d234>] (__purge_vmap_area_lazy) from [<8054d898>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:3045) r10:00000000 r9:ea489de8 r8:00000000 r7:ffffffff r6:00000008 r5:ea489e30 r4:ea489de8 [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:868d1580 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:84d11980 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f23e000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e43dd000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbdba8 r4:8cf2cb00 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbdba8 r4:8cf2cb00 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:8cf2cb30 r8:84d11980 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cf2cb00 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea9b9e88 r8:86d83500 r7:8cf2cb00 r6:802799e4 r5:84d11980 r4:86fd66c0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea489fb0 to 0xea489ff8) 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 r5:8028467c r4:86fd66c0 INFO: task kworker/0:18:21589 blocked for more than 431 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:18 state:D stack:0 pid:21589 tgid:21589 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81c14514>] (__schedule) from [<81c15a2c>] (__schedule_loop kernel/sched/core.c:7466 [inline]) [<81c14514>] (__schedule) from [<81c15a2c>] (schedule+0x2c/0xec kernel/sched/core.c:7481) r10:ea82dd84 r9:ea82dd8c r8:00000002 r7:60000113 r6:836dd000 r5:84cef2c0 r4:84cef2c0 [<81c15a00>] (schedule) from [<81c15b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7538) r5:84cef2c0 r4:836dcffc [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock_common kernel/locking/mutex.c:726 [inline]) [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock.constprop.0+0x50c/0xa58 kernel/locking/mutex.c:821) [<81c17ea0>] (__mutex_lock.constprop.0) from [<81c189cc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1164) r10:8340b48c r9:00800000 r8:00000000 r7:ffffffff r6:00000000 r5:ea82de08 r4:86fd1280 [<81c189b8>] (__mutex_lock_slowpath) from [<81c18a0c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:319) [<81c189d0>] (mutex_lock) from [<8054d70c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:3006) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:86fd1280 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:00000000 r7:00000000 r6:872a87a8 r5:00001000 r4:7f252000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:ea4e9000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:872a87a8 r4:8cff8580 [<803e69e4>] (bpf_prog_free_images) from [<803e7d0c>] (bpf_prog_free_deferred+0x198/0x1bc kernel/bpf/core.c:3203) r7:00000000 r6:872a87a8 r5:872a8400 r4:8cff8580 [<803e7b74>] (bpf_prog_free_deferred) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r9:00800000 r8:84cef2c0 r7:dddcf740 r6:83c2b000 r5:872a87a8 r4:8cff8580 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:8cff85b0 r8:84cef2c0 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cff8580 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:dfc71e88 r8:8cff8700 r7:8cff8580 r6:802799e4 r5:84cef2c0 r4:8b445680 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea82dfb0 to 0xea82dff8) 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 r5:8028467c r4:8b445680 INFO: task kworker/0:18:21589 is blocked on a mutex likely owned by task kworker/0:13:18880. task:kworker/0:13 state:R running task stack:0 pid:18880 tgid:18880 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15e1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7669) r10:8340b4e0 r9:84d11980 r8:80200c04 r7:ea489d84 r6:ffffffff r5:84d11980 r4:00000000 [<81c15ddc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea489d50 to 0xea489d98) 9d40: 99fd8000 ead3d000 00000000 802398cc 9d60: 836dc394 836dcfd8 7f296000 ead3d000 00000000 00000001 8340b4e0 ea489dc4 9d80: ead3d000 ea489da0 802306fc 802398e4 800d0013 ffffffff r5:800d0013 r4:802398e4 [<8023069c>] (flush_tlb_kernel_range) from [<8054d4c0>] (__purge_vmap_area_lazy+0x28c/0x47c mm/vmalloc.c:2404) [<8054d234>] (__purge_vmap_area_lazy) from [<8054d898>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:3045) r10:00000000 r9:ea489de8 r8:00000000 r7:ffffffff r6:00000008 r5:ea489e30 r4:ea489de8 [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:868d1580 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:84d11980 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f23e000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e43dd000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbdba8 r4:8cf2cb00 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbdba8 r4:8cf2cb00 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:8cf2cb30 r8:84d11980 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cf2cb00 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea9b9e88 r8:86d83500 r7:8cf2cb00 r6:802799e4 r5:84d11980 r4:86fd66c0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea489fb0 to 0xea489ff8) 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 r5:8028467c r4:86fd66c0 INFO: task kworker/0:20:21775 blocked for more than 431 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:20 state:D stack:0 pid:21775 tgid:21775 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15a2c>] (__schedule_loop kernel/sched/core.c:7466 [inline]) [<81c14514>] (__schedule) from [<81c15a2c>] (schedule+0x2c/0xec kernel/sched/core.c:7481) r10:e0191dac r9:e0191db4 r8:00000002 r7:60000113 r6:836dd000 r5:83d94c80 r4:83d94c80 [<81c15a00>] (schedule) from [<81c15b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7538) r5:83d94c80 r4:836dcffc [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock_common kernel/locking/mutex.c:726 [inline]) [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock.constprop.0+0x50c/0xa58 kernel/locking/mutex.c:821) [<81c17ea0>] (__mutex_lock.constprop.0) from [<81c189cc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1164) r10:8340b48c r9:00800000 r8:00000000 r7:ffffffff r6:00000000 r5:e0191e30 r4:86fd6940 [<81c189b8>] (__mutex_lock_slowpath) from [<81c18a0c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:319) [<81c189d0>] (mutex_lock) from [<8054d70c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:3006) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:86fd6940 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:83d94c80 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f244000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:ea49d000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbd7a8 r4:86d84c80 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbd7a8 r4:86d84c80 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:86d84cb0 r8:83d94c80 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:86d84c80 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:dfc71e88 r8:86e93f80 r7:86d84c80 r6:802799e4 r5:83d94c80 r4:89d7cb80 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0191fb0 to 0xe0191ff8) 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 r5:8028467c r4:89d7cb80 INFO: task kworker/0:20:21775 is blocked on a mutex likely owned by task kworker/0:13:18880. task:kworker/0:13 state:R running task stack:0 pid:18880 tgid:18880 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15e1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7669) r10:8340b4e0 r9:84d11980 r8:80200c04 r7:ea489d84 r6:ffffffff r5:84d11980 r4:00000000 [<81c15ddc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea489d50 to 0xea489d98) 9d40: 9a21f000 ead3d000 00000000 802398cc 9d60: 836dc394 836dcfd8 7f296000 ead3d000 00000000 00000001 8340b4e0 ea489dc4 9d80: ead3d000 ea489da0 802306fc 802398e4 800d0013 ffffffff r5:800d0013 r4:802398e4 [<8023069c>] (flush_tlb_kernel_range) from [<8054d4c0>] (__purge_vmap_area_lazy+0x28c/0x47c mm/vmalloc.c:2404) [<8054d234>] (__purge_vmap_area_lazy) from [<8054d898>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:3045) r10:00000000 r9:ea489de8 r8:00000000 r7:ffffffff r6:00000008 r5:ea489e30 r4:ea489de8 [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:868d1580 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:84d11980 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f23e000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e43dd000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbdba8 r4:8cf2cb00 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbdba8 r4:8cf2cb00 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:8cf2cb30 r8:84d11980 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cf2cb00 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea9b9e88 r8:86d83500 r7:8cf2cb00 r6:802799e4 r5:84d11980 r4:86fd66c0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea489fb0 to 0xea489ff8) 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 r5:8028467c r4:86fd66c0 INFO: task kworker/0:21:21807 blocked for more than 431 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:21 state:D stack:0 pid:21807 tgid:21807 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15a2c>] (__schedule_loop kernel/sched/core.c:7466 [inline]) [<81c14514>] (__schedule) from [<81c15a2c>] (schedule+0x2c/0xec kernel/sched/core.c:7481) r10:e0299dac r9:e0299db4 r8:00000002 r7:60000113 r6:836dd000 r5:85c08cc0 r4:85c08cc0 [<81c15a00>] (schedule) from [<81c15b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7538) r5:85c08cc0 r4:836dcffc [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock_common kernel/locking/mutex.c:726 [inline]) [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock.constprop.0+0x50c/0xa58 kernel/locking/mutex.c:821) [<81c17ea0>] (__mutex_lock.constprop.0) from [<81c189cc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1164) r10:8340b48c r9:00800000 r8:00000000 r7:ffffffff r6:00000000 r5:e0299e30 r4:87077d40 [<81c189b8>] (__mutex_lock_slowpath) from [<81c18a0c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:319) [<81c189d0>] (mutex_lock) from [<8054d70c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:3006) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:87077d40 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:85c08cc0 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f24a000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:ea683000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbbfa8 r4:86cf6600 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbbfa8 r4:86cf6600 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:00000000 r9:86cf6630 r8:85c08cc0 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:86cf6600 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:e0191e88 r8:8cd02900 r7:86cf6600 r6:802799e4 r5:85c08cc0 r4:8b990180 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0299fb0 to 0xe0299ff8) 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 r5:8028467c r4:8b990180 INFO: task kworker/0:21:21807 is blocked on a mutex likely owned by task kworker/0:13:18880. task:kworker/0:13 state:R running task stack:0 pid:18880 tgid:18880 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15e1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7669) r10:8340b4e0 r9:84d11980 r8:80200c04 r7:ea489d84 r6:ffffffff r5:84d11980 r4:00000000 [<81c15ddc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea489d50 to 0xea489d98) 9d40: 9a21f000 ead3d000 00000000 802398cc 9d60: 836dc394 836dcfd8 7f296000 ead3d000 00000000 00000001 8340b4e0 ea489dc4 9d80: ead3d000 ea489da0 802306fc 802398e4 800d0013 ffffffff r5:800d0013 r4:802398e4 [<8023069c>] (flush_tlb_kernel_range) from [<8054d4c0>] (__purge_vmap_area_lazy+0x28c/0x47c mm/vmalloc.c:2404) [<8054d234>] (__purge_vmap_area_lazy) from [<8054d898>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:3045) r10:00000000 r9:ea489de8 r8:00000000 r7:ffffffff r6:00000008 r5:ea489e30 r4:ea489de8 [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:868d1580 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:84d11980 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f23e000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e43dd000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbdba8 r4:8cf2cb00 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbdba8 r4:8cf2cb00 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:8cf2cb30 r8:84d11980 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cf2cb00 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea9b9e88 r8:86d83500 r7:8cf2cb00 r6:802799e4 r5:84d11980 r4:86fd66c0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea489fb0 to 0xea489ff8) 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 r5:8028467c r4:86fd66c0 INFO: task kworker/0:22:21813 blocked for more than 431 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:22 state:D stack:0 pid:21813 tgid:21813 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15a2c>] (__schedule_loop kernel/sched/core.c:7466 [inline]) [<81c14514>] (__schedule) from [<81c15a2c>] (schedule+0x2c/0xec kernel/sched/core.c:7481) r10:e02b1dac r9:e02b1db4 r8:00000002 r7:60000013 r6:836dd000 r5:85cc8000 r4:85cc8000 [<81c15a00>] (schedule) from [<81c15b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7538) r5:85cc8000 r4:836dcffc [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock_common kernel/locking/mutex.c:726 [inline]) [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock.constprop.0+0x50c/0xa58 kernel/locking/mutex.c:821) [<81c17ea0>] (__mutex_lock.constprop.0) from [<81c189cc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1164) r10:8340b48c r9:00800000 r8:00000000 r7:ffffffff r6:00000000 r5:e02b1e30 r4:8b9ed5c0 [<81c189b8>] (__mutex_lock_slowpath) from [<81c18a0c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:319) [<81c189d0>] (mutex_lock) from [<8054d70c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:3006) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:8b9ed5c0 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:85cc8000 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f248000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:ea5d1000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:867677a8 r4:86ce5100 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:867677a8 r4:86ce5100 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:00000000 r9:86ce5130 r8:85cc8000 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:86ce5100 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea82de88 r8:86b37200 r7:86ce5100 r6:802799e4 r5:85cc8000 r4:868e3000 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe02b1fb0 to 0xe02b1ff8) 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 r5:8028467c r4:868e3000 INFO: task kworker/0:22:21813 is blocked on a mutex likely owned by task kworker/0:13:18880. task:kworker/0:13 state:R running task stack:0 pid:18880 tgid:18880 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15e1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7669) r10:8340b4e0 r9:84d11980 r8:80200c04 r7:ea489d84 r6:ffffffff r5:84d11980 r4:00000000 [<81c15ddc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea489d50 to 0xea489d98) 9d40: 9a21f000 ead3d000 00000000 802398cc 9d60: 836dc394 836dcfd8 7f296000 ead3d000 00000000 00000001 8340b4e0 ea489dc4 9d80: ead3d000 ea489da0 802306fc 802398e4 800d0013 ffffffff r5:800d0013 r4:802398e4 [<8023069c>] (flush_tlb_kernel_range) from [<8054d4c0>] (__purge_vmap_area_lazy+0x28c/0x47c mm/vmalloc.c:2404) [<8054d234>] (__purge_vmap_area_lazy) from [<8054d898>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:3045) r10:00000000 r9:ea489de8 r8:00000000 r7:ffffffff r6:00000008 r5:ea489e30 r4:ea489de8 [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:868d1580 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:84d11980 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f23e000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e43dd000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbdba8 r4:8cf2cb00 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbdba8 r4:8cf2cb00 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:8cf2cb30 r8:84d11980 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cf2cb00 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea9b9e88 r8:86d83500 r7:8cf2cb00 r6:802799e4 r5:84d11980 r4:86fd66c0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea489fb0 to 0xea489ff8) 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 r5:8028467c r4:86fd66c0 INFO: task kworker/0:23:22016 blocked for more than 431 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:23 state:D stack:0 pid:22016 tgid:22016 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81c14514>] (__schedule) from [<81c15a2c>] (__schedule_loop kernel/sched/core.c:7466 [inline]) [<81c14514>] (__schedule) from [<81c15a2c>] (schedule+0x2c/0xec kernel/sched/core.c:7481) r10:e010dd84 r9:e010dd8c r8:00000002 r7:60000113 r6:836dd000 r5:85cccc80 r4:85cccc80 [<81c15a00>] (schedule) from [<81c15b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7538) r5:85cccc80 r4:836dcffc [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock_common kernel/locking/mutex.c:726 [inline]) [<81c15b58>] (schedule_preempt_disabled) from [<81c183ac>] (__mutex_lock.constprop.0+0x50c/0xa58 kernel/locking/mutex.c:821) [<81c17ea0>] (__mutex_lock.constprop.0) from [<81c189cc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1164) r10:8340b48c r9:00800000 r8:00000000 r7:ffffffff r6:00000000 r5:e010de08 r4:8ba32cc0 [<81c189b8>] (__mutex_lock_slowpath) from [<81c18a0c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:319) [<81c189d0>] (mutex_lock) from [<8054d70c>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:3006) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:8ba32cc0 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:00000000 r7:00000000 r6:853637a8 r5:00001000 r4:7f266000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:ea887000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:853637a8 r4:8cf2c800 [<803e69e4>] (bpf_prog_free_images) from [<803e7d0c>] (bpf_prog_free_deferred+0x198/0x1bc kernel/bpf/core.c:3203) r7:00000000 r6:853637a8 r5:85363400 r4:8cf2c800 [<803e7b74>] (bpf_prog_free_deferred) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r9:00800000 r8:85cccc80 r7:dddcf740 r6:83c2b000 r5:853637a8 r4:8cf2c800 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:00000000 r9:8cf2c830 r8:85cccc80 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cf2c800 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:e0191e88 r8:86b30d80 r7:8cf2c800 r6:802799e4 r5:85cccc80 r4:87076640 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe010dfb0 to 0xe010dff8) 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 r5:8028467c r4:87076640 INFO: task kworker/0:23:22016 is blocked on a mutex likely owned by task kworker/0:13:18880. task:kworker/0:13 state:R running task stack:0 pid:18880 tgid:18880 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_images Call trace: [<81c14514>] (__schedule) from [<81c15e1c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7669) r10:8340b4e0 r9:84d11980 r8:80200c04 r7:ea489d84 r6:ffffffff r5:84d11980 r4:00000000 [<81c15ddc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea489d50 to 0xea489d98) 9d40: 9a995000 ead3d000 00000000 802398cc 9d60: 836dc394 836dcfd8 7f296000 ead3d000 00000000 00000001 8340b4e0 ea489dc4 9d80: ead3d000 ea489da0 802306fc 802398e4 800d0013 ffffffff r5:800d0013 r4:802398e4 [<8023069c>] (flush_tlb_kernel_range) from [<8054d4c0>] (__purge_vmap_area_lazy+0x28c/0x47c mm/vmalloc.c:2404) [<8054d234>] (__purge_vmap_area_lazy) from [<8054d898>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:3045) r10:00000000 r9:ea489de8 r8:00000000 r7:ffffffff r6:00000008 r5:ea489e30 r4:ea489de8 [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vm_reset_perms mm/vmalloc.c:3441 [inline]) [<8054d6b0>] (_vm_unmap_aliases) from [<8055177c>] (vfree+0x110/0x17c mm/vmalloc.c:3545) r10:83c2b005 r9:00800000 r8:ffffffff r7:00000001 r6:00000000 r5:00000000 r4:868d1580 [<8055166c>] (vfree) from [<805d0b2c>] (execmem_free+0x34/0x54 mm/execmem.c:501) r8:84d11980 r7:dddcf740 r6:83c2b000 r5:00001000 r4:7f23e000 [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free_exec kernel/bpf/core.c:1140 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_binary_free kernel/bpf/core.c:1186 [inline]) [<805d0af8>] (execmem_free) from [<803e6968>] (bpf_jit_free+0x38/0xb4 kernel/bpf/core.c:1310) r5:00001000 r4:e43dd000 [<803e6930>] (bpf_jit_free) from [<803e6a58>] (bpf_prog_free_images+0x74/0x78 kernel/bpf/core.c:3164) r5:89cbdba8 r4:8cf2cb00 [<803e69e4>] (bpf_prog_free_images) from [<80278ba4>] (process_one_work+0x1f8/0x5cc kernel/workqueue.c:3495) r7:dddcf740 r6:83c2b000 r5:89cbdba8 r4:8cf2cb00 [<802789ac>] (process_one_work) from [<80279b50>] (process_scheduled_works kernel/workqueue.c:3578 [inline]) [<802789ac>] (process_one_work) from [<80279b50>] (worker_thread+0x16c/0x318 kernel/workqueue.c:3659) r10:dddcf740 r9:8cf2cb30 r8:84d11980 r7:83403d80 r6:dddcf760 r5:dddcf740 r4:8cf2cb00 [<802799e4>] (worker_thread) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:ea9b9e88 r8:86d83500 r7:8cf2cb00 r6:802799e4 r5:84d11980 r4:86fd66c0 [<8028467c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea489fb0 to 0xea489ff8) 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 r5:8028467c r4:86fd66c0 NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: ARM-Versatile Express Call trace: [<80201a08>] (dump_backtrace) from [<80201afc>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:600f0093 r6:600f0093 r5:82542868 r4:00000000 [<80201ae4>] (show_stack) from [<8021f5e8>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201ae4>] (show_stack) from [<8021f5e8>] (dump_stack_lvl+0x5c/0x70 lib/dump_stack.c:120) [<8021f58c>] (dump_stack_lvl) from [<8021f614>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r7:00000000 r6:000f0013 r5:00000000 r4:00000001 [<8021f5fc>] (dump_stack) from [<81c00550>] (nmi_cpu_backtrace+0x150/0x170 lib/nmi_backtrace.c:123) [<81c00400>] (nmi_cpu_backtrace) from [<81c006a4>] (nmi_trigger_cpumask_backtrace+0x134/0x208 lib/nmi_backtrace.c:66) r7:8340b194 r6:83fb8cc0 r5:83417d78 r4:ffffffff [<81c00570>] (nmi_trigger_cpumask_backtrace) from [<80230120>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:840) r9:8340b33c r8:00000048 r7:0000000a r6:83403d80 r5:00007ea4 r4:00000048 [<80230108>] (arch_trigger_cpumask_backtrace) from [<81c003fc>] (cpumask_backtrace+0x10/0x14 lib/nmi_backtrace.c:136) [<81c003ec>] (cpumask_backtrace) from [<81c055f4>] (trigger_all_cpu_backtrace include/linux/nmi.h:164 [inline]) [<81c003ec>] (cpumask_backtrace) from [<81c055f4>] (__sys_info lib/sys_info.c:157 [inline]) [<81c003ec>] (cpumask_backtrace) from [<81c055f4>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81c0558c>] (sys_info) from [<803981b8>] (check_hung_uninterruptible_tasks kernel/hung_task.c:377 [inline]) [<81c0558c>] (sys_info) from [<803981b8>] (watchdog+0x418/0x8f4 kernel/hung_task.c:598) r5:00007ea4 r4:0000000a [<80397da0>] (watchdog) from [<80284798>] (kthread+0x11c/0x154 kernel/kthread.c:436) r10:00000000 r9:df819e60 r8:83f66600 r7:00000000 r6:80397da0 r5:83fb8cc0 r4:83f16ac0 [<8028467c>] (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 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8028467c r4:83f16ac0