INFO: task kworker/0:2:16324 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:2 state:D stack:0 pid:16324 tgid:16324 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfb79d84 r9:00000002 r8:60000013 r7:829171a0 r6:dfb79d8c r5:86856000 r4:86856000 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:86856000 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb79e08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85ac9900 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:86856000 r7:00000000 r6:83018400 r5:00001000 r4:7f2ec000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea571000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85c37f8c r4:85ce4f00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85c37f8c r4:85ce4f00 [<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 r9:86856000 r8:85ce4f2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85ce4f00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85ce4f00 r8:80278fec r7:dfb2de60 r6:85ce4380 r5:86856000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb79fb0 to 0xdfb79ff8) 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 r4:85567380 INFO: task kworker/0:2:16324 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 INFO: task kworker/0:14:16452 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:14 state:D stack:0 pid:16452 tgid:16452 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfb61d84 r9:00000002 r8:60000113 r7:829171a0 r6:dfb61d8c r5:855b9800 r4:855b9800 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:855b9800 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb61e08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a95600 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:855b9800 r7:00000000 r6:83018400 r5:00001000 r4:7f302000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df9f7000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85c3778c r4:85cddf80 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85c3778c r4:85cddf80 [<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 r9:855b9800 r8:85cddfac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85cddf80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85cddf80 r8:80278fec r7:e8215e60 r6:85cdd480 r5:855b9800 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb61fb0 to 0xdfb61ff8) 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 r4:85c05080 INFO: task kworker/0:14:16452 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 INFO: task kworker/1:1:16512 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:0 pid:16512 tgid:16512 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfa2dd84 r9:00000002 r8:60000113 r7:829171a0 r6:dfa2dd8c r5:841fe000 r4:841fe000 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:841fe000 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfa2de08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c6f200 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:841fe000 r7:00000000 r6:83018600 r5:00001000 r4:7f2cc000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea7f2000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:84ed278c r4:85bfcb80 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:84ed278c r4:85bfcb80 [<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 r9:841fe000 r8:85bfcbac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85bfcb80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85bfcb80 r8:80278fec r7:eb011e60 r6:85bfc480 r5:841fe000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa2dfb0 to 0xdfa2dff8) 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 r4:85a70d40 INFO: task kworker/1:1:16512 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 INFO: task kworker/1:4:18218 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:0 pid:18218 tgid:18218 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea835d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea835d8c r5:8397d400 r4:8397d400 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:8397d400 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea835e08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a4d700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:8397d400 r7:00000000 r6:83018600 r5:00001000 r4:7f2b2000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e4197000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8547538c r4:85b21280 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:8547538c r4:85b21280 [<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 r9:8397d400 r8:85b212ac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21280 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21280 r8:80278fec r7:ea829e60 r6:858de380 r5:8397d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea835fb0 to 0xea835ff8) 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 r4:85ea8580 INFO: task kworker/1:4:18218 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 INFO: task kworker/1:9:18225 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:9 state:D stack:0 pid:18225 tgid:18225 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea8add84 r9:00000002 r8:60000113 r7:829171a0 r6:ea8add8c r5:86a56000 r4:86a56000 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:86a56000 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea8ade08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84d5ff80 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a56000 r7:00000000 r6:83018600 r5:00001000 r4:7f34e000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea823000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:84bd1f8c r4:85b21880 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:84bd1f8c r4:85b21880 [<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 r9:86a56000 r8:85b218ac r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21880 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21880 r8:80278fec r7:ea7fde60 r6:868e4a80 r5:86a56000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8adfb0 to 0xea8adff8) 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 r4:868c0dc0 INFO: task kworker/1:9:18225 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 INFO: task kworker/1:11:18267 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:11 state:D stack:0 pid:18267 tgid:18267 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea3e5d84 r9:00000002 r8:60000113 r7:829171a0 r6:ea3e5d8c r5:85d80c00 r4:85d80c00 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:85d80c00 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea3e5e08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85be8000 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85d80c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2c8000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea77d000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86803f8c r4:85457d00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86803f8c r4:85457d00 [<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 r9:85d80c00 r8:85457d2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85457d00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85457d00 r8:80278fec r7:ea771e60 r6:85663900 r5:85d80c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea3e5fb0 to 0xea3e5ff8) 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 r4:8564acc0 INFO: task kworker/1:11:18267 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 INFO: task kworker/0:26:18311 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:26 state:D stack:0 pid:18311 tgid:18311 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea419d84 r9:00000002 r8:60000013 r7:829171a0 r6:ea419d8c r5:86a55400 r4:86a55400 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:86a55400 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea419e08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85bd9fc0 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:86a55400 r7:00000000 r6:83018400 r5:00001000 r4:7f35a000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:eb8d4000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:858ffb8c r4:85b2dd00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:858ffb8c r4:85b2dd00 [<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 r9:86a55400 r8:85b2dd2c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85b2dd00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b2dd00 r8:80278fec r7:ea651e60 r6:85457b80 r5:86a55400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea419fb0 to 0xea419ff8) 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 r4:861a8180 INFO: task kworker/0:26:18311 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 INFO: task kworker/0:28:18317 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:28 state:D stack:0 pid:18317 tgid:18317 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:dfbcdd84 r9:00000002 r8:60070013 r7:829171a0 r6:dfbcdd8c r5:84e1d400 r4:84e1d400 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84e1d400 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbcde08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85eb1d80 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84e1d400 r7:00000000 r6:83018400 r5:00001000 r4:7f354000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea913000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:860fb78c r4:85b2d780 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:860fb78c r4:85b2d780 [<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 r9:84e1d400 r8:85b2d7ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85b2d780 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b2d780 r8:80278fec r7:ea419e60 r6:85457000 r5:84e1d400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbcdfb0 to 0xdfbcdff8) 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 r4:85c6f6c0 INFO: task kworker/0:28:18317 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 INFO: task kworker/0:29:18318 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:18318 tgid:18318 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:e00bdd84 r9:00000002 r8:60000013 r7:829171a0 r6:e00bdd8c r5:84f78000 r4:84f78000 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:84f78000 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e00bde08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:860ce040 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:84f78000 r7:00000000 r6:83018400 r5:00001000 r4:7f358000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:eafdf000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85e8878c r4:85b2db80 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85e8878c r4:85b2db80 [<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 r9:84f78000 r8:85b2dbac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85b2db80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b2db80 r8:80278fec r7:dfbcde60 r6:85457080 r5:84f78000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe00bdfb0 to 0xe00bdff8) 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 r4:85c6fa80 INFO: task kworker/0:29:18318 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 INFO: task kworker/0:30:18322 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:18322 tgid:18322 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea99dd84 r9:00000002 r8:60000113 r7:829171a0 r6:ea99dd8c r5:83aba400 r4:83aba400 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:83aba400 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea99de08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a950c0 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83aba400 r7:00000000 r6:83018400 r5:00001000 r4:7f300000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df9f1000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85c35f8c r4:85b2dd80 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85c35f8c r4:85b2dd80 [<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 r9:83aba400 r8:85b2ddac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85b2dd80 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b2dd80 r8:80278fec r7:dfbcde60 r6:85457400 r5:83aba400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea99dfb0 to 0xea99dff8) 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 r4:85c6f3c0 INFO: task kworker/0:30:18322 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:32:18353 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:32 state:D stack:0 pid:18353 tgid:18353 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:ea3e1d84 r9:00000002 r8:60070113 r7:829171a0 r6:ea3e1d8c r5:85d80000 r4:85d80000 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:85d80000 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea3e1e08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859f2500 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d80000 r7:00000000 r6:83018400 r5:00001000 r4:7f2ea000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea56f000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:85c3438c r4:85b2d380 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:85c3438c r4:85b2d380 [<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 r9:85d80000 r8:85b2d3ac r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85b2d380 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b2d380 r8:80278fec r7:eaa9de60 r6:85b2d980 r5:85d80000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea3e1fb0 to 0xea3e1ff8) 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 r4:85b53940 INFO: task kworker/0:32:18353 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task kworker/0:33:18375 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:33 state:D stack:0 pid:18375 tgid:18375 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a64df0>] (__schedule_loop kernel/sched/core.c:7011 [inline]) [<81a63e5c>] (__schedule) from [<81a64df0>] (schedule+0x2c/0x130 kernel/sched/core.c:7026) r10:eab25d84 r9:00000002 r8:600b0113 r7:829171a0 r6:eab25d8c r5:85d86000 r4:85d86000 [<81a64dc4>] (schedule) from [<81a651d8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7083) r5:85d86000 r4:8291719c [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock_common kernel/locking/mutex.c:676 [inline]) [<81a651c0>] (schedule_preempt_disabled) from [<81a67d88>] (__mutex_lock.constprop.0+0x350/0xa24 kernel/locking/mutex.c:760) [<81a67a38>] (__mutex_lock.constprop.0) from [<81a68530>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1049) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab25e08 r4:00000000 [<81a6851c>] (__mutex_lock_slowpath) from [<81a68570>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:274) [<81a68534>] (mutex_lock) from [<804ea31c>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2918) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84bd54c0 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d86000 r7:00000000 r6:83018400 r5:00001000 r4:7f356000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:eab29000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:8547978c r4:85b2d100 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:dddcfd80 r6:83018400 r5:8547978c r4:85b2d100 [<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 r9:85d86000 r8:85b2d12c r7:82804d40 r6:dddcfd80 r5:dddcfda0 r4:85b2d100 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b2d100 r8:80278fec r7:ea3e1e60 r6:85b2d400 r5:85d86000 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab25fb0 to 0xeab25ff8) 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 r4:85e71040 INFO: task kworker/0:33:18375 is blocked on a mutex likely owned by task kworker/1:7:18223. task:kworker/1:7 state:R running task stack:0 pid:18223 tgid:18223 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a63e5c>] (__schedule) from [<81a65224>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7256) r10:8280c9b4 r9:86a53c00 r8:80200c04 r7:ea771d54 r6:ffffffff r5:86a53c00 r4:00000000 [<81a651e4>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea771d20 to 0xea771d68) 1d20: acd85000 ea713000 00000001 80239bf8 7f276000 00000001 82acb1c4 82aca5a0 1d40: 7f276000 ea713000 8280c9b4 ea771d9c ea771da0 ea771d70 80230af0 80239c10 1d60: 80020113 ffffffff r5:80020113 r4:80239c10 [<80230a8c>] (flush_tlb_kernel_range) from [<804ea0e0>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2342) r4:82acb1e4 [<804e9e5c>] (__purge_vmap_area_lazy) from [<804ea498>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2957) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea771dc0 r5:ea771e08 r4:ea771dc0 [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vm_reset_perms mm/vmalloc.c:3349 [inline]) [<804ea2b4>] (_vm_unmap_aliases) from [<804ee0fc>] (vfree+0x16c/0x210 mm/vmalloc.c:3428) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:869c1700 r4:00000000 [<804edf90>] (vfree) from [<80559048>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86a53c00 r7:00000000 r6:83018600 r5:00001000 r4:7f2b0000 [<80559018>] (execmem_free) from [<803c5f98>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e0155000 [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803c5f88>] (bpf_jit_free_exec) from [<803c6378>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803c6310>] (bpf_jit_free) from [<803c7420>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2898) r5:86181f8c r4:85b21b00 [<803c72e0>] (bpf_prog_free_deferred) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r7:ddde3d80 r6:83018600 r5:86181f8c r4:85b21b00 [<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 r9:86a53c00 r8:85b21b2c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:85b21b00 [<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b21b00 r8:80278fec r7:ea829e60 r6:85b21180 r5:86a53c00 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85ccb3c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00070113 r5:60070193 r4:822526a8 [<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) r5:00000000 r4:00000001 [<8021f904>] (dump_stack) from [<81a4da74>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a4d914>] (nmi_cpu_backtrace) from [<81a4dbc0>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c690 r5:8281ae34 r4:ffffffff [<81a4da90>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:8281ba28 r8:8280c810 r7:00046e33 r6:00007e6e r5:82abf7d4 r4:86ab510c [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037faf0>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037faf0>] (check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037faf0>] (watchdog+0x5d0/0x850 kernel/hung_task.c:495) [<8037f520>] (watchdog) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:8037f520 r7:83844000 r6:83844000 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 r4:833c8940 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 2818 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194 LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline] LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603 pc : [<81a6dcc4>] lr : [<80a8f4b8>] psr: 60000113 sp : eafe9eb0 ip : eafe9ec0 fp : eafe9ebc r10: 82959594 r9 : 00000001 r8 : 00000000 r7 : 00000117 r6 : 829594f8 r5 : 00000000 r4 : 00000001 r3 : 0000160b r2 : 00000000 r1 : 60000113 r0 : 84187c40 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 84d37040 DAC: 00000000 Call trace: [<81a6dc9c>] (_raw_spin_unlock_irqrestore) from [<80a8f4b8>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81a6dc9c>] (_raw_spin_unlock_irqrestore) from [<80a8f4b8>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81a6dc9c>] (_raw_spin_unlock_irqrestore) from [<80a8f4b8>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80a8f498>] (pl011_console_device_unlock) from [<802e3750>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1142) [<802e36c8>] (nbcon_emit_one) from [<802e3970>] (nbcon_kthread_func+0x1a8/0x2a4 kernel/printk/nbcon.c:1229) r6:8280c690 r5:84195400 r4:829594f8 [<802e37c8>] (nbcon_kthread_func) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:829594f8 r8:802e37c8 r7:84708600 r6:84708600 r5:84195400 r4:00000001 [<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeafe9fb0 to 0xeafe9ff8) 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 r4:84872240