INFO: task kworker/0:40:14902 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:40 state:D stack:0 pid:14902 tgid:14902 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a657d0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a6483c>] (__schedule) from [<81a657d0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea389d84 r9:00000002 r8:600d0013 r7:829171a0 r6:ea389d8c r5:83a9e000 r4:83a9e000 [<81a657a4>] (schedule) from [<81a65bb8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:83a9e000 r4:8291719c [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a68418>] (__mutex_lock.constprop.0) from [<81a68f10>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea389e08 r4:00000000 [<81a68efc>] (__mutex_lock_slowpath) from [<81a68f50>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68f14>] (mutex_lock) from [<804ea37c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:864f58c0 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83a9e000 r7:00000000 r6:83018400 r5:00001000 r4:7f2fa000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df99d000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490fb8c r4:83837580 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8490fb8c r4:83837580 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:83a9e000 r8:838375ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:83837580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:83837580 r8:80278fec r7:dff79e60 r6:859c0500 r5:83a9e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea389fb0 to 0xea389ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:84d5f480 INFO: task kworker/0:40:14902 is blocked on a mutex likely owned by task kworker/0:48:15040. task:kworker/0:48 state:R running task stack:0 pid:15040 tgid:15040 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a65c04>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8a45e000 r8:80200c04 r7:dfb6dd54 r6:ffffffff r5:8a45e000 r4:00000000 [<81a65bc4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfb6dd20 to 0xdfb6dd68) dd20: 9422f000 ea6c3000 00000001 80239bf8 7f28e000 00000001 82acb1c4 82aca5a0 dd40: 7f28e000 ea6c3000 8280c9b4 dfb6dd9c dfb6dda0 dfb6dd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea140>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9ebc>] (__purge_vmap_area_lazy) from [<804ea4f8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfb6ddc0 r5:dfb6de08 r4:dfb6ddc0 [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86516400 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8a45e000 r7:00000000 r6:83018400 r5:00001000 r4:7f30c000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa37000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490e78c r4:85d25580 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8490e78c r4:85d25580 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8a45e000 r8:85d255ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85d25580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d25580 r8:80278fec r7:ea389e60 r6:85f1c600 r5:8a45e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb6dfb0 to 0xdfb6dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:85a84480 INFO: task kworker/0:46:15018 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:46 state:D stack:0 pid:15018 tgid:15018 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a657d0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a6483c>] (__schedule) from [<81a657d0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e427dd84 r9:00000002 r8:60000113 r7:829171a0 r6:e427dd8c r5:84bfc800 r4:84bfc800 [<81a657a4>] (schedule) from [<81a65bb8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84bfc800 r4:8291719c [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a68418>] (__mutex_lock.constprop.0) from [<81a68f10>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e427de08 r4:00000000 [<81a68efc>] (__mutex_lock_slowpath) from [<81a68f50>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68f14>] (mutex_lock) from [<804ea37c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8c288c40 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84bfc800 r7:00000000 r6:83018400 r5:00001000 r4:7f28e000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e002b000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8ce4eb8c r4:84e9a980 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8ce4eb8c r4:84e9a980 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:84bfc800 r8:84e9a9ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:84e9a980 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84e9a980 r8:80278fec r7:ea389e60 r6:85f1c800 r5:84bfc800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe427dfb0 to 0xe427dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:84bcde40 INFO: task kworker/0:46:15018 is blocked on a mutex likely owned by task kworker/0:48:15040. task:kworker/0:48 state:R running task stack:0 pid:15040 tgid:15040 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a65c04>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8a45e000 r8:80200c04 r7:dfb6dd54 r6:ffffffff r5:8a45e000 r4:00000000 [<81a65bc4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfb6dd20 to 0xdfb6dd68) dd20: 9472b000 ea6c3000 00000001 80239bf8 7f28e000 00000001 82acb1c4 82aca5a0 dd40: 7f28e000 ea6c3000 8280c9b4 dfb6dd9c dfb6dda0 dfb6dd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea140>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9ebc>] (__purge_vmap_area_lazy) from [<804ea4f8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfb6ddc0 r5:dfb6de08 r4:dfb6ddc0 [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86516400 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8a45e000 r7:00000000 r6:83018400 r5:00001000 r4:7f30c000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa37000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490e78c r4:85d25580 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8490e78c r4:85d25580 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8a45e000 r8:85d255ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85d25580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d25580 r8:80278fec r7:ea389e60 r6:85f1c600 r5:8a45e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb6dfb0 to 0xdfb6dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:85a84480 INFO: task kworker/0:29:18097 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:18097 tgid:18097 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a657d0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a6483c>] (__schedule) from [<81a657d0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea6a5d84 r9:00000002 r8:600f0013 r7:829171a0 r6:ea6a5d8c r5:856c1800 r4:856c1800 [<81a657a4>] (schedule) from [<81a65bb8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:856c1800 r4:8291719c [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a68418>] (__mutex_lock.constprop.0) from [<81a68f10>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6a5e08 r4:00000000 [<81a68efc>] (__mutex_lock_slowpath) from [<81a68f50>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68f14>] (mutex_lock) from [<804ea37c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85949040 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:856c1800 r7:00000000 r6:83018400 r5:00001000 r4:7f2fc000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df9b0000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490c78c r4:8584cb00 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8490c78c r4:8584cb00 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:856c1800 r8:8584cb2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:8584cb00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8584cb00 r8:80278fec r7:e01bde60 r6:8584c500 r5:856c1800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea6a5fb0 to 0xea6a5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:84f19300 INFO: task kworker/0:29:18097 is blocked on a mutex likely owned by task kworker/0:48:15040. task:kworker/0:48 state:R running task stack:0 pid:15040 tgid:15040 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a65c04>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8a45e000 r8:80200c04 r7:dfb6dd54 r6:ffffffff r5:8a45e000 r4:00000000 [<81a65bc4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfb6dd20 to 0xdfb6dd68) dd20: 9472b000 ea6c3000 00000001 80239bf8 7f28e000 00000001 82acb1c4 82aca5a0 dd40: 7f28e000 ea6c3000 8280c9b4 dfb6dd9c dfb6dda0 dfb6dd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea140>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9ebc>] (__purge_vmap_area_lazy) from [<804ea4f8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfb6ddc0 r5:dfb6de08 r4:dfb6ddc0 [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86516400 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8a45e000 r7:00000000 r6:83018400 r5:00001000 r4:7f30c000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa37000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490e78c r4:85d25580 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8490e78c r4:85d25580 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8a45e000 r8:85d255ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85d25580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d25580 r8:80278fec r7:ea389e60 r6:85f1c600 r5:8a45e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb6dfb0 to 0xdfb6dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:85a84480 INFO: task kworker/0:30:18103 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:30 state:D stack:0 pid:18103 tgid:18103 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a657d0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a6483c>] (__schedule) from [<81a657d0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea6f1d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea6f1d8c r5:84905400 r4:84905400 [<81a657a4>] (schedule) from [<81a65bb8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84905400 r4:8291719c [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a68418>] (__mutex_lock.constprop.0) from [<81a68f10>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6f1e08 r4:00000000 [<81a68efc>] (__mutex_lock_slowpath) from [<81a68f50>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68f14>] (mutex_lock) from [<804ea37c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86516a80 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84905400 r7:00000000 r6:83018400 r5:00001000 r4:7f30a000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa11000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490f38c r4:85c5a880 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8490f38c r4:85c5a880 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:84905400 r8:85c5a8ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85c5a880 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c5a880 r8:80278fec r7:eac69e60 r6:84945300 r5:84905400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea6f1fb0 to 0xea6f1ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:85c61b80 INFO: task kworker/0:30:18103 is blocked on a mutex likely owned by task kworker/0:48:15040. task:kworker/0:48 state:R running task stack:0 pid:15040 tgid:15040 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8028d908>] (preempt_count_sub) from [<81a65c10>] (preempt_schedule_irq+0x4c/0xa8 kernel/sched/core.c:7258) [<81a65bc4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfb6dd20 to 0xdfb6dd68) dd20: 94a1c000 ea6c3000 00000001 80239bf8 7f28e000 00000001 82acb1c4 82aca5a0 dd40: 7f28e000 ea6c3000 8280c9b4 dfb6dd9c dfb6dda0 dfb6dd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea140>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9ebc>] (__purge_vmap_area_lazy) from [<804ea4f8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfb6ddc0 r5:dfb6de08 r4:dfb6ddc0 [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86516400 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8a45e000 r7:00000000 r6:83018400 r5:00001000 r4:7f30c000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa37000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490e78c r4:85d25580 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8490e78c r4:85d25580 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8a45e000 r8:85d255ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85d25580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d25580 r8:80278fec r7:ea389e60 r6:85f1c600 r5:8a45e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb6dfb0 to 0xdfb6dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:85a84480 INFO: task kworker/1:47:18439 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:47 state:D stack:0 pid:18439 tgid:18439 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a657d0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a6483c>] (__schedule) from [<81a657d0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfa65d84 r9:00000002 r8:60000013 r7:829171a0 r6:dfa65d8c r5:84199800 r4:84199800 [<81a657a4>] (schedule) from [<81a65bb8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84199800 r4:8291719c [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a68418>] (__mutex_lock.constprop.0) from [<81a68f10>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfa65e08 r4:00000000 [<81a68efc>] (__mutex_lock_slowpath) from [<81a68f50>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68f14>] (mutex_lock) from [<804ea37c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86639680 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:84199800 r7:00000000 r6:83018600 r5:00001000 r4:7f308000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa0f000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490d78c r4:8572cd00 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:8490d78c r4:8572cd00 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:84199800 r8:8572cd2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:8572cd00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8572cd00 r8:80278fec r7:dfc21e60 r6:85813500 r5:84199800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa65fb0 to 0xdfa65ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:8a761d40 INFO: task kworker/1:47:18439 is blocked on a mutex likely owned by task kworker/0:48:15040. task:kworker/0:48 state:R running task stack:0 pid:15040 tgid:15040 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a65c04>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8a45e000 r8:80200c04 r7:dfb6dd54 r6:ffffffff r5:8a45e000 r4:00000000 [<81a65bc4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfb6dd20 to 0xdfb6dd68) dd20: 94a1c000 ea6c3000 00000001 80239bf8 7f28e000 00000001 82acb1c4 82aca5a0 dd40: 7f28e000 ea6c3000 8280c9b4 dfb6dd9c dfb6dda0 dfb6dd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea140>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9ebc>] (__purge_vmap_area_lazy) from [<804ea4f8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfb6ddc0 r5:dfb6de08 r4:dfb6ddc0 [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86516400 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8a45e000 r7:00000000 r6:83018400 r5:00001000 r4:7f30c000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa37000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490e78c r4:85d25580 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8490e78c r4:85d25580 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8a45e000 r8:85d255ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85d25580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d25580 r8:80278fec r7:ea389e60 r6:85f1c600 r5:8a45e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb6dfb0 to 0xdfb6dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:85a84480 INFO: task kworker/1:49:18688 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:49 state:D stack:0 pid:18688 tgid:18688 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a657d0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a6483c>] (__schedule) from [<81a657d0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e01b9d84 r9:00000002 r8:600b0113 r7:829171a0 r6:e01b9d8c r5:8577c800 r4:8577c800 [<81a657a4>] (schedule) from [<81a65bb8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8577c800 r4:8291719c [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a68418>] (__mutex_lock.constprop.0) from [<81a68f10>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e01b9e08 r4:00000000 [<81a68efc>] (__mutex_lock_slowpath) from [<81a68f50>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68f14>] (mutex_lock) from [<804ea37c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86639240 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8577c800 r7:00000000 r6:83018600 r5:00001000 r4:7f306000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa01000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490ef8c r4:865fdb00 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:8490ef8c r4:865fdb00 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8577c800 r8:865fdb2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:865fdb00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:865fdb00 r8:80278fec r7:dfa65e60 r6:8c297180 r5:8577c800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe01b9fb0 to 0xe01b9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:8c28ae40 INFO: task kworker/1:49:18688 is blocked on a mutex likely owned by task kworker/0:48:15040. task:kworker/0:48 state:R running task stack:0 pid:15040 tgid:15040 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a65c04>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8a45e000 r8:80200c04 r7:dfb6dd54 r6:ffffffff r5:8a45e000 r4:00000000 [<81a65bc4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfb6dd20 to 0xdfb6dd68) dd20: 94a1c000 ea6c3000 00000001 80239bf8 7f28e000 00000001 82acb1c4 82aca5a0 dd40: 7f28e000 ea6c3000 8280c9b4 dfb6dd9c dfb6dda0 dfb6dd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea140>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9ebc>] (__purge_vmap_area_lazy) from [<804ea4f8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfb6ddc0 r5:dfb6de08 r4:dfb6ddc0 [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86516400 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8a45e000 r7:00000000 r6:83018400 r5:00001000 r4:7f30c000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa37000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490e78c r4:85d25580 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8490e78c r4:85d25580 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8a45e000 r8:85d255ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85d25580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d25580 r8:80278fec r7:ea389e60 r6:85f1c600 r5:8a45e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb6dfb0 to 0xdfb6dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:85a84480 INFO: task kworker/1:51:18737 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:51 state:D stack:0 pid:18737 tgid:18737 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a657d0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a6483c>] (__schedule) from [<81a657d0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea76dd84 r9:00000002 r8:600b0113 r7:829171a0 r6:ea76dd8c r5:85603000 r4:85603000 [<81a657a4>] (schedule) from [<81a65bb8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:85603000 r4:8291719c [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a65ba0>] (schedule_preempt_disabled) from [<81a68768>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a68418>] (__mutex_lock.constprop.0) from [<81a68f10>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea76de08 r4:00000000 [<81a68efc>] (__mutex_lock_slowpath) from [<81a68f50>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68f14>] (mutex_lock) from [<804ea37c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85ab2180 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85603000 r7:00000000 r6:83018600 r5:00001000 r4:7f2aa000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea909000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8ce4778c r4:84941280 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:8ce4778c r4:84941280 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:85603000 r8:849412ac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:84941280 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84941280 r8:80278fec r7:ea675e60 r6:8c2ae680 r5:85603000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea76dfb0 to 0xea76dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:8c29fa00 INFO: task kworker/1:51:18737 is blocked on a mutex likely owned by task kworker/0:48:15040. task:kworker/0:48 state:R running task stack:0 pid:15040 tgid:15040 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a6483c>] (__schedule) from [<81a65c04>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:8a45e000 r8:80200c04 r7:dfb6dd54 r6:ffffffff r5:8a45e000 r4:00000000 [<81a65bc4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xdfb6dd20 to 0xdfb6dd68) dd20: 94a1c000 ea6c3000 00000001 80239bf8 7f28e000 00000001 82acb1c4 82aca5a0 dd40: 7f28e000 ea6c3000 8280c9b4 dfb6dd9c dfb6dda0 dfb6dd70 80230af0 80239c10 dd60: 80000113 ffffffff r5:80000113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea140>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9ebc>] (__purge_vmap_area_lazy) from [<804ea4f8>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfb6ddc0 r5:dfb6de08 r4:dfb6ddc0 [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea314>] (_vm_unmap_aliases) from [<804ee15c>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86516400 r4:00000000 [<804edff0>] (vfree) from [<80559088>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8a45e000 r7:00000000 r6:83018400 r5:00001000 r4:7f30c000 [<80559058>] (execmem_free) from [<803c5fb0>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfa37000 [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5fa0>] (bpf_jit_free_exec) from [<803c6390>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6328>] (bpf_jit_free) from [<803c7438>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8490e78c r4:85d25580 [<803c72f8>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8490e78c r4:85d25580 [<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8a45e000 r8:85d255ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85d25580 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d25580 r8:80278fec r7:ea389e60 r6:85f1c600 r5:8a45e000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb6dfb0 to 0xdfb6dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:85a84480 NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000113 r5:60000193 r4:8225282c [<80201b08>] (show_stack) from [<8021f8f8>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b08>] (show_stack) from [<8021f8f8>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021f888>] (dump_stack_lvl) from [<8021f91c>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000001 r4:00000001 [<8021f904>] (dump_stack) from [<81a4e454>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a4e2f4>] (nmi_cpu_backtrace) from [<81a4e5a0>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8280c690 r5:8281ae34 r4:ffffffff [<81a4e470>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:8281ba28 r8:8280c810 r7:00045d90 r6:00007eaf r5:82abf7d4 r4:83330b0c [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037faf8>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037faf8>] (check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037faf8>] (watchdog+0x5d0/0x850 kernel/hung_task.c:495) [<8037f528>] (watchdog) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:8037f528 r7:832d3180 r6:832d3180 r5:832e2400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:838c8240 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 15 Comm: rcu_preempt Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at rcu_gp_init+0x0/0x720 kernel/rcu/tree.c:1804 LR is at rcu_gp_kthread+0x74/0x18c kernel/rcu/tree.c:2275 pc : [<803046c0>] lr : [<80305520>] psr: 20000113 sp : df855f40 ip : df855ee0 fp : df855f6c r10: df855f4c r9 : 82804d40 r8 : 828efa00 r7 : 828efbda r6 : 828efbcc r5 : 828efbd8 r4 : 83213000 r3 : 00000002 r2 : 00000000 r1 : dddd0a80 r0 : 00000001 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84e769c0 DAC: fffffffd Call trace: [<803054ac>] (rcu_gp_kthread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r7:830bf100 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf855fb0 to 0xdf855ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0 r4:830b6bc0