Extracting prog: 13m48.898910726s Minimizing prog: 1h18m50.663763869s Simplifying prog options: 0s Extracting C: 9m28.187206452s Simplifying C: 1h0m34.959286032s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 45s testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN detailed listing: executing program 0: r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x1, 0x8, &(0x7f0000001000)=ANY=[@ANYBLOB="7a0af8ff75257025bfa100000000000007010000f8ffffffb702000005000000bf130000000000008500000006000000b700000000000000950000ff00000000"], &(0x7f0000000100)='GPL\x00'}, 0x48) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000080)={r0, 0x2800000002000000, 0xe, 0x55, &(0x7f0000000140)="a06ad876d56a0064d082778c3938", &(0x7f0000000380)=""/85, 0x7000, 0x4000000}, 0x28) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 16m0s testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN detailed listing: executing program 0: r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x1, 0x8, &(0x7f0000001000)=ANY=[@ANYBLOB="7a0af8ff75257025bfa100000000000007010000f8ffffffb702000005000000bf130000000000008500000006000000b700000000000000950000ff00000000"], &(0x7f0000000100)='GPL\x00'}, 0x48) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000080)={r0, 0x2800000002000000, 0xe, 0x55, &(0x7f0000000140)="a06ad876d56a0064d082778c3938", &(0x7f0000000380)=""/85, 0x7000, 0x4000000}, 0x28) program crashed: INFO: task hung in _vm_unmap_aliases single: successfully extracted reproducer found reproducer with 2 syscalls minimizing guilty program testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x1, 0x8, &(0x7f0000001000)=ANY=[@ANYBLOB="7a0af8ff75257025bfa100000000000007010000f8ffffffb702000005000000bf130000000000008500000006000000b700000000000000950000ff00000000"], &(0x7f0000000100)='GPL\x00'}, 0x48) program crashed: INFO: task hung in _vm_unmap_aliases testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD detailed listing: executing program 0: bpf$PROG_LOAD(0x5, 0x0, 0x0) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x1, 0x8, 0x0, &(0x7f0000000100)='GPL\x00'}, 0x94) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x1, 0x8, &(0x7f0000001000)=ANY=[@ANYBLOB], &(0x7f0000000100)='GPL\x00'}, 0x94) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x1, 0x8, &(0x7f0000001000)=ANY=[@ANYBLOB="7a0af8ff75257025bfa100000000000007010000f8ffffffb702000005000000bf130000000000008500000006000000b700000000000000950000ff00000000"], 0x0}, 0x94) program did not crash extracting C reproducer testing compiled C program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD program crashed: INFO: task hung in _vm_unmap_aliases simplifying C reproducer testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x1, 0x8, &(0x7f0000001000)=ANY=[@ANYBLOB="7a0af8ff75257025bfa100000000000007010000f8ffffffb702000005000000bf130000000000008500000006000000b700000000000000950000ff00000000"], &(0x7f0000000100)='GPL\x00'}, 0x48) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x1, 0x8, &(0x7f0000001000)=ANY=[@ANYBLOB="7a0af8ff75257025bfa100000000000007010000f8ffffffb702000005000000bf130000000000008500000006000000b700000000000000950000ff00000000"], &(0x7f0000000100)='GPL\x00'}, 0x48) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x1, 0x8, &(0x7f0000001000)=ANY=[@ANYBLOB="7a0af8ff75257025bfa100000000000007010000f8ffffffb702000005000000bf130000000000008500000006000000b700000000000000950000ff00000000"], &(0x7f0000000100)='GPL\x00'}, 0x48) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true reproducing took 3h22m55.806096755s repro crashed as (corrupted=false): INFO: task kworker/0:135:4691 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:135 state:D stack:0 pid:4691 tgid:4691 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea6add84 r9:829172a8 r8:60000013 r7:829172a8 r6:ea6add8c r5:853b6000 r4:853b6000 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:853b6000 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6ade08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859a9e00 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:853b6000 r7:00000000 r6:83018400 r5:00001000 r4:7f039000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e4353000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c80794 r4:85c3d800 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c80794 r4:85c3d800 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:853b6000 r8:85c3d82c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c3d800 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c3d800 r8:802762fc r7:ea709e60 r6:859fa080 r5:853b6000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea6adfb0 to 0xea6adff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b82c0 INFO: task kworker/0:135:4691 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8adbb000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/0:138:4696 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:138 state:D stack:0 pid:4696 tgid:4696 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea649d84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea649d8c r5:85325400 r4:85325400 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85325400 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea649e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b8e40 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85325400 r7:00000000 r6:83018400 r5:00001000 r4:7f03b000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea451000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c80b94 r4:85c40080 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c80b94 r4:85c40080 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85325400 r8:85c400ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c40080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c40080 r8:802762fc r7:ea6ade60 r6:85c40100 r5:85325400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea649fb0 to 0xea649ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85c3e440 INFO: task kworker/0:138:4696 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8adbb000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/1:146:4699 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:146 state:D stack:0 pid:4699 tgid:4699 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea651d84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea651d8c r5:85323c00 r4:85323c00 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85323c00 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea651e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c429c0 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85323c00 r7:00000000 r6:83018600 r5:00001000 r4:7f03d000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea50d000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c81394 r4:859fa400 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c81394 r4:859fa400 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85323c00 r8:859fa42c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:859fa400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859fa400 r8:802762fc r7:ea5ede60 r6:85c40380 r5:85323c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea651fb0 to 0xea651ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85c42380 INFO: task kworker/1:146:4699 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8adbb000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/0:139:4700 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:139 state:D stack:0 pid:4700 tgid:4700 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea64dd84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea64dd8c r5:85324800 r4:85324800 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85324800 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea64de08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85940f40 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85324800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea593000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c81794 r4:85c40300 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c81794 r4:85c40300 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85324800 r8:85c4032c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c40300 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c40300 r8:802762fc r7:ea649e60 r6:85c40280 r5:85324800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea64dfb0 to 0xea64dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859beb40 INFO: task kworker/0:139:4700 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8c48e000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/0:140:4702 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:140 state:D stack:0 pid:4702 tgid:4702 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea659d84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea659d8c r5:85323000 r4:85323000 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85323000 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea659e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b4480 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85323000 r7:00000000 r6:83018400 r5:00001000 r4:7f04b000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea77f000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c83794 r4:85c40500 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c83794 r4:85c40500 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85323000 r8:85c4052c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c40500 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c40500 r8:802762fc r7:ea64de60 r6:85c40580 r5:85323000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea659fb0 to 0xea659ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b8400 INFO: task kworker/0:140:4702 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8e751000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/0:141:4703 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:141 state:D stack:0 pid:4703 tgid:4703 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea655d84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea655d8c r5:85321800 r4:85321800 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85321800 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea655e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859a9000 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85321800 r7:00000000 r6:83018400 r5:00001000 r4:7f047000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea69b000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c82f94 r4:85c40680 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c82f94 r4:85c40680 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85321800 r8:85c406ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c40680 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c40680 r8:802762fc r7:ea64de60 r6:85c40700 r5:85321800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea655fb0 to 0xea655ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b1d80 INFO: task kworker/0:141:4703 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8e751000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/0:142:4707 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:142 state:D stack:0 pid:4707 tgid:4707 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea665d84 r9:829172a8 r8:60000013 r7:829172a8 r6:ea665d8c r5:85320000 r4:85320000 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85320000 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea665e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b4040 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85320000 r7:00000000 r6:83018400 r5:00001000 r4:7f049000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea755000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c82b94 r4:85c40880 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c82b94 r4:85c40880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85320000 r8:85c408ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c40880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c40880 r8:802762fc r7:ea659e60 r6:85c40900 r5:85320000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea665fb0 to 0xea665ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0c80 INFO: task kworker/0:142:4707 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8e751000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000113 r5:60000193 r4:82295bd4 [<80201b58>] (show_stack) from [<8021eeb4>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b58>] (show_stack) from [<8021eeb4>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021ee44>] (dump_stack_lvl) from [<8021eed8>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<8021eec0>] (dump_stack) from [<81a9ca10>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9c8b0>] (nmi_cpu_backtrace) from [<81a9cb5c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c510 r5:8281ad5c r4:ffffffff [<81a9ca2c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007c3e r8:8280c690 r7:00020179 r6:00007c3e r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa4604>] (sys_info) from [<803839d4>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa4604>] (sys_info) from [<803839d4>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:85ec110c [<80383570>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:80383570 r7:830d6380 r6:830d6380 r5:8321c800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:832dbf40 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 2820 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h: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 : [<81abdb80>] lr : [<80aa4144>] psr: 60000113 sp : eb17deb0 ip : eb17dec0 fp : eb17debc r10: 82959c04 r9 : 00000001 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 0000079e r2 : 00000000 r1 : 60000113 r0 : 84550440 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 84db48c0 DAC: 00000000 Call trace: [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa4124>] (pl011_console_device_unlock) from [<802e57c0>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149) [<802e5738>] (nbcon_emit_one) from [<802e5a40>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255) r6:82abf0fc r5:82959b68 r4:8467e000 [<802e5838>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5838 r7:84e54c00 r6:84e54c00 r5:8467e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb17dfb0 to 0xeb17dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:84ae6580 INFO: task kworker/1:13:4144 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:13 state:D stack:0 pid:4144 tgid:4144 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfd2dd84 r9:829172a8 r8:60000113 r7:829172a8 r6:dfd2dd8c r5:833a3000 r4:833a3000 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:833a3000 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfd2de08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c421c0 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:833a3000 r7:00000000 r6:83018600 r5:00001000 r4:7f031000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e83c3000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c1e394 r4:85942480 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c1e394 r4:85942480 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:833a3000 r8:859424ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85942480 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85942480 r8:802762fc r7:dfd1de60 r6:85942980 r5:833a3000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfd2dfb0 to 0xdfd2dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85940140 INFO: task kworker/1:13:4144 is blocked on a mutex likely owned by task kworker/1:146:4699. task:kworker/1:146 state:R running task stack:0 pid:4699 tgid:4699 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85323c00 r8:80200c04 r7:ea651d54 r6:ffffffff r5:85323c00 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea651d20 to 0xea651d68) 1d20: d5ecc000 ebd53000 00000001 80239018 7f00b000 00000001 82ace204 82acd5e0 1d40: 7f00b000 ebd53000 8280c838 ea651d9c ea651da0 ea651d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea651dc0 r5:ea651e08 r4:ea651dc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c429c0 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85323c00 r7:00000000 r6:83018600 r5:00001000 r4:7f03d000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea50d000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c81394 r4:859fa400 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c81394 r4:859fa400 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85323c00 r8:859fa42c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:859fa400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859fa400 r8:802762fc r7:ea5ede60 r6:85c40380 r5:85323c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea651fb0 to 0xea651ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85c42380 INFO: task kworker/1:14:4149 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:14 state:D stack:0 pid:4149 tgid:4149 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfcc5d84 r9:829172a8 r8:60000113 r7:829172a8 r6:dfcc5d8c r5:84f61800 r4:84f61800 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:84f61800 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfcc5e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c42840 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:84f61800 r7:00000000 r6:83018600 r5:00001000 r4:7f053000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea7ad000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85978b94 r4:85942d00 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85978b94 r4:85942d00 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:84f61800 r8:85942d2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85942d00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85942d00 r8:802762fc r7:dfca9e60 r6:85942d80 r5:84f61800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcc5fb0 to 0xdfcc5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859408c0 INFO: task kworker/1:14:4149 is blocked on a mutex likely owned by task kworker/1:146:4699. task:kworker/1:146 state:R running task stack:0 pid:4699 tgid:4699 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85323c00 r8:80200c04 r7:ea651d54 r6:ffffffff r5:85323c00 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea651d20 to 0xea651d68) 1d20: d64d5000 ebd53000 00000001 80239018 7f00b000 00000001 82ace204 82acd5e0 1d40: 7f00b000 ebd53000 8280c838 ea651d9c ea651da0 ea651d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea651dc0 r5:ea651e08 r4:ea651dc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c429c0 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85323c00 r7:00000000 r6:83018600 r5:00001000 r4:7f03d000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea50d000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c81394 r4:859fa400 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c81394 r4:859fa400 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85323c00 r8:859fa42c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:859fa400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859fa400 r8:802762fc r7:ea5ede60 r6:85c40380 r5:85323c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea651fb0 to 0xea651ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85c42380 INFO: task kworker/1:15:4152 blocked for more than 431 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:15 state:D stack:0 pid:4152 tgid:4152 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfb55d84 r9:829172a8 r8:60000113 r7:829172a8 r6:dfb55d8c r5:833a4800 r4:833a4800 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:833a4800 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb55e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c48c40 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:833a4800 r7:00000000 r6:83018600 r5:00001000 r4:7f00d000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa83000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c89794 r4:85942b00 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c89794 r4:85942b00 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:833a4800 r8:85942b2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85942b00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85942b00 r8:802762fc r7:dfcc5e60 r6:85942b80 r5:833a4800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb55fb0 to 0xdfb55ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85940840 INFO: task kworker/1:15:4152 is blocked on a mutex likely owned by task kworker/1:146:4699. task:kworker/1:146 state:R running task stack:0 pid:4699 tgid:4699 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85323c00 r8:80200c04 r7:ea651d54 r6:ffffffff r5:85323c00 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea651d20 to 0xea651d68) 1d20: d8c3b000 ebd53000 00000001 80239018 7f00b000 00000001 82ace204 82acd5e0 1d40: 7f00b000 ebd53000 8280c838 ea651d9c ea651da0 ea651d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea651dc0 r5:ea651e08 r4:ea651dc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c429c0 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85323c00 r7:00000000 r6:83018600 r5:00001000 r4:7f03d000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea50d000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c81394 r4:859fa400 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c81394 r4:859fa400 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85323c00 r8:859fa42c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:859fa400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859fa400 r8:802762fc r7:ea5ede60 r6:85c40380 r5:85323c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea651fb0 to 0xea651ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85c42380 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: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000113 r5:60000193 r4:82295bd4 [<80201b58>] (show_stack) from [<8021eeb4>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b58>] (show_stack) from [<8021eeb4>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021ee44>] (dump_stack_lvl) from [<8021eed8>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<8021eec0>] (dump_stack) from [<81a9ca10>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9c8b0>] (nmi_cpu_backtrace) from [<81a9cb5c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c510 r5:8281ad5c r4:ffffffff [<81a9ca2c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007c16 r8:8280c690 r7:000209a2 r6:00007c16 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa4604>] (sys_info) from [<803839d4>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa4604>] (sys_info) from [<803839d4>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:85ff630c [<80383570>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:80383570 r7:830d6380 r6:830d6380 r5:8321c800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:832dbf40 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 2820 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h: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 : [<81abdb80>] lr : [<80aa4144>] psr: 60000113 sp : eb17deb0 ip : eb17dec0 fp : eb17debc r10: 82959c04 r9 : 00000001 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 0000093b r2 : 00000000 r1 : 60000113 r0 : 84550440 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 85c76a40 DAC: 00000000 Call trace: [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa4124>] (pl011_console_device_unlock) from [<802e57c0>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149) [<802e5738>] (nbcon_emit_one) from [<802e5a40>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255) r6:82abf0fc r5:82959b68 r4:8467e000 [<802e5838>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5838 r7:84e54c00 r6:84e54c00 r5:8467e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb17dfb0 to 0xeb17dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:84ae6580 final repro crashed as (corrupted=false): INFO: task kworker/0:135:4691 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:135 state:D stack:0 pid:4691 tgid:4691 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea6add84 r9:829172a8 r8:60000013 r7:829172a8 r6:ea6add8c r5:853b6000 r4:853b6000 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:853b6000 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6ade08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859a9e00 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:853b6000 r7:00000000 r6:83018400 r5:00001000 r4:7f039000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e4353000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c80794 r4:85c3d800 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c80794 r4:85c3d800 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:853b6000 r8:85c3d82c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c3d800 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c3d800 r8:802762fc r7:ea709e60 r6:859fa080 r5:853b6000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea6adfb0 to 0xea6adff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b82c0 INFO: task kworker/0:135:4691 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8adbb000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/0:138:4696 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:138 state:D stack:0 pid:4696 tgid:4696 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea649d84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea649d8c r5:85325400 r4:85325400 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85325400 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea649e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b8e40 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85325400 r7:00000000 r6:83018400 r5:00001000 r4:7f03b000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea451000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c80b94 r4:85c40080 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c80b94 r4:85c40080 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85325400 r8:85c400ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c40080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c40080 r8:802762fc r7:ea6ade60 r6:85c40100 r5:85325400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea649fb0 to 0xea649ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85c3e440 INFO: task kworker/0:138:4696 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8adbb000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/1:146:4699 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:146 state:D stack:0 pid:4699 tgid:4699 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea651d84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea651d8c r5:85323c00 r4:85323c00 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85323c00 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea651e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c429c0 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85323c00 r7:00000000 r6:83018600 r5:00001000 r4:7f03d000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea50d000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c81394 r4:859fa400 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c81394 r4:859fa400 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85323c00 r8:859fa42c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:859fa400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859fa400 r8:802762fc r7:ea5ede60 r6:85c40380 r5:85323c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea651fb0 to 0xea651ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85c42380 INFO: task kworker/1:146:4699 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8adbb000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/0:139:4700 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:139 state:D stack:0 pid:4700 tgid:4700 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea64dd84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea64dd8c r5:85324800 r4:85324800 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85324800 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea64de08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85940f40 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85324800 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea593000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c81794 r4:85c40300 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c81794 r4:85c40300 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85324800 r8:85c4032c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c40300 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c40300 r8:802762fc r7:ea649e60 r6:85c40280 r5:85324800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea64dfb0 to 0xea64dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859beb40 INFO: task kworker/0:139:4700 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8c48e000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/0:140:4702 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:140 state:D stack:0 pid:4702 tgid:4702 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea659d84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea659d8c r5:85323000 r4:85323000 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85323000 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea659e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b4480 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85323000 r7:00000000 r6:83018400 r5:00001000 r4:7f04b000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea77f000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c83794 r4:85c40500 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c83794 r4:85c40500 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85323000 r8:85c4052c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c40500 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c40500 r8:802762fc r7:ea64de60 r6:85c40580 r5:85323000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea659fb0 to 0xea659ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b8400 INFO: task kworker/0:140:4702 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8e751000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/0:141:4703 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:141 state:D stack:0 pid:4703 tgid:4703 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea655d84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea655d8c r5:85321800 r4:85321800 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85321800 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea655e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859a9000 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85321800 r7:00000000 r6:83018400 r5:00001000 r4:7f047000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea69b000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c82f94 r4:85c40680 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c82f94 r4:85c40680 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85321800 r8:85c406ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c40680 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c40680 r8:802762fc r7:ea64de60 r6:85c40700 r5:85321800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea655fb0 to 0xea655ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b1d80 INFO: task kworker/0:141:4703 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8e751000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 INFO: task kworker/0:142:4707 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:142 state:D stack:0 pid:4707 tgid:4707 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea665d84 r9:829172a8 r8:60000013 r7:829172a8 r6:ea665d8c r5:85320000 r4:85320000 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85320000 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea665e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b4040 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85320000 r7:00000000 r6:83018400 r5:00001000 r4:7f049000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea755000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c82b94 r4:85c40880 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85c82b94 r4:85c40880 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85320000 r8:85c408ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c40880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c40880 r8:802762fc r7:ea659e60 r6:85c40900 r5:85320000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea665fb0 to 0xea665ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0c80 INFO: task kworker/0:142:4707 is blocked on a mutex likely owned by task kworker/1:144:4654. task:kworker/1:144 state:R running task stack:0 pid:4654 tgid:4654 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85b0b000 r8:80200c04 r7:ea5fdd54 r6:ffffffff r5:85b0b000 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea5fdd20 to 0xea5fdd68) dd20: 8e751000 ebd3f000 00000001 80239018 7f02b000 00000001 82ace204 82acd5e0 dd40: 7f02b000 ebd3f000 8280c838 ea5fdd9c ea5fdda0 ea5fdd70 8022fe10 80239030 dd60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea5fddc0 r5:ea5fde08 r4:ea5fddc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:859b3440 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85b0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f037000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01dd000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c7df94 r4:85c39180 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c7df94 r4:85c39180 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85b0b000 r8:85c391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85c39180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c39180 r8:802762fc r7:ea5ede60 r6:85c3d080 r5:85b0b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea5fdfb0 to 0xea5fdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859b0680 NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000113 r5:60000193 r4:82295bd4 [<80201b58>] (show_stack) from [<8021eeb4>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b58>] (show_stack) from [<8021eeb4>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021ee44>] (dump_stack_lvl) from [<8021eed8>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<8021eec0>] (dump_stack) from [<81a9ca10>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9c8b0>] (nmi_cpu_backtrace) from [<81a9cb5c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c510 r5:8281ad5c r4:ffffffff [<81a9ca2c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007c3e r8:8280c690 r7:00020179 r6:00007c3e r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa4604>] (sys_info) from [<803839d4>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa4604>] (sys_info) from [<803839d4>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:85ec110c [<80383570>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:80383570 r7:830d6380 r6:830d6380 r5:8321c800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:832dbf40 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 2820 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h: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 : [<81abdb80>] lr : [<80aa4144>] psr: 60000113 sp : eb17deb0 ip : eb17dec0 fp : eb17debc r10: 82959c04 r9 : 00000001 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 0000079e r2 : 00000000 r1 : 60000113 r0 : 84550440 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 84db48c0 DAC: 00000000 Call trace: [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa4124>] (pl011_console_device_unlock) from [<802e57c0>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149) [<802e5738>] (nbcon_emit_one) from [<802e5a40>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255) r6:82abf0fc r5:82959b68 r4:8467e000 [<802e5838>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5838 r7:84e54c00 r6:84e54c00 r5:8467e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb17dfb0 to 0xeb17dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:84ae6580 INFO: task kworker/1:13:4144 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:13 state:D stack:0 pid:4144 tgid:4144 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfd2dd84 r9:829172a8 r8:60000113 r7:829172a8 r6:dfd2dd8c r5:833a3000 r4:833a3000 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:833a3000 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfd2de08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c421c0 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:833a3000 r7:00000000 r6:83018600 r5:00001000 r4:7f031000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e83c3000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c1e394 r4:85942480 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c1e394 r4:85942480 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:833a3000 r8:859424ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85942480 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85942480 r8:802762fc r7:dfd1de60 r6:85942980 r5:833a3000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfd2dfb0 to 0xdfd2dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85940140 INFO: task kworker/1:13:4144 is blocked on a mutex likely owned by task kworker/1:146:4699. task:kworker/1:146 state:R running task stack:0 pid:4699 tgid:4699 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85323c00 r8:80200c04 r7:ea651d54 r6:ffffffff r5:85323c00 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea651d20 to 0xea651d68) 1d20: d5ecc000 ebd53000 00000001 80239018 7f00b000 00000001 82ace204 82acd5e0 1d40: 7f00b000 ebd53000 8280c838 ea651d9c ea651da0 ea651d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea651dc0 r5:ea651e08 r4:ea651dc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c429c0 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85323c00 r7:00000000 r6:83018600 r5:00001000 r4:7f03d000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea50d000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c81394 r4:859fa400 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c81394 r4:859fa400 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85323c00 r8:859fa42c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:859fa400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859fa400 r8:802762fc r7:ea5ede60 r6:85c40380 r5:85323c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea651fb0 to 0xea651ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85c42380 INFO: task kworker/1:14:4149 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:14 state:D stack:0 pid:4149 tgid:4149 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfcc5d84 r9:829172a8 r8:60000113 r7:829172a8 r6:dfcc5d8c r5:84f61800 r4:84f61800 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:84f61800 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfcc5e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c42840 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:84f61800 r7:00000000 r6:83018600 r5:00001000 r4:7f053000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea7ad000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85978b94 r4:85942d00 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85978b94 r4:85942d00 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:84f61800 r8:85942d2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85942d00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85942d00 r8:802762fc r7:dfca9e60 r6:85942d80 r5:84f61800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcc5fb0 to 0xdfcc5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:859408c0 INFO: task kworker/1:14:4149 is blocked on a mutex likely owned by task kworker/1:146:4699. task:kworker/1:146 state:R running task stack:0 pid:4699 tgid:4699 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85323c00 r8:80200c04 r7:ea651d54 r6:ffffffff r5:85323c00 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea651d20 to 0xea651d68) 1d20: d64d5000 ebd53000 00000001 80239018 7f00b000 00000001 82ace204 82acd5e0 1d40: 7f00b000 ebd53000 8280c838 ea651d9c ea651da0 ea651d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea651dc0 r5:ea651e08 r4:ea651dc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c429c0 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85323c00 r7:00000000 r6:83018600 r5:00001000 r4:7f03d000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea50d000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c81394 r4:859fa400 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c81394 r4:859fa400 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85323c00 r8:859fa42c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:859fa400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859fa400 r8:802762fc r7:ea5ede60 r6:85c40380 r5:85323c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea651fb0 to 0xea651ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85c42380 INFO: task kworker/1:15:4152 blocked for more than 431 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:15 state:D stack:0 pid:4152 tgid:4152 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab41d8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab2f2c>] (__schedule) from [<81ab41d8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfb55d84 r9:829172a8 r8:60000113 r7:829172a8 r6:dfb55d8c r5:833a4800 r4:833a4800 [<81ab41ac>] (schedule) from [<81ab4360>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:833a4800 r4:829172a4 [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab4348>] (schedule_preempt_disabled) from [<81ab79e4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab738c>] (__mutex_lock.constprop.0) from [<81ab83ec>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb55e08 r4:00000000 [<81ab83d8>] (__mutex_lock_slowpath) from [<81ab842c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab83f0>] (mutex_lock) from [<804f46d0>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c48c40 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:833a4800 r7:00000000 r6:83018600 r5:00001000 r4:7f00d000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa83000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c89794 r4:85942b00 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c89794 r4:85942b00 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:833a4800 r8:85942b2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85942b00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85942b00 r8:802762fc r7:dfcc5e60 r6:85942b80 r5:833a4800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb55fb0 to 0xdfb55ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85940840 INFO: task kworker/1:15:4152 is blocked on a mutex likely owned by task kworker/1:146:4699. task:kworker/1:146 state:R running task stack:0 pid:4699 tgid:4699 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab2f2c>] (__schedule) from [<81ab460c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c838 r9:85323c00 r8:80200c04 r7:ea651d54 r6:ffffffff r5:85323c00 r4:00000000 [<81ab45cc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea651d20 to 0xea651d68) 1d20: d8c3b000 ebd53000 00000001 80239018 7f00b000 00000001 82ace204 82acd5e0 1d40: 7f00b000 ebd53000 8280c838 ea651d9c ea651da0 ea651d70 8022fe10 80239030 1d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4494>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f4210>] (__purge_vmap_area_lazy) from [<804f484c>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea651dc0 r5:ea651e08 r4:ea651dc0 [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4668>] (_vm_unmap_aliases) from [<804f84b8>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c429c0 r4:00000000 [<804f834c>] (vfree) from [<805642f0>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85323c00 r7:00000000 r6:83018600 r5:00001000 r4:7f03d000 [<805642c0>] (execmem_free) from [<803cb554>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea50d000 [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb544>] (bpf_jit_free_exec) from [<803cb934>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb8cc>] (bpf_jit_free) from [<803cca5c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85c81394 r4:859fa400 [<803cc91c>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c81394 r4:859fa400 [<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline]) [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421) r10:61c88647 r9:85323c00 r8:859fa42c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:859fa400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:859fa400 r8:802762fc r7:ea5ede60 r6:85c40380 r5:85323c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea651fb0 to 0xea651ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:85c42380 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: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000113 r5:60000193 r4:82295bd4 [<80201b58>] (show_stack) from [<8021eeb4>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b58>] (show_stack) from [<8021eeb4>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021ee44>] (dump_stack_lvl) from [<8021eed8>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<8021eec0>] (dump_stack) from [<81a9ca10>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9c8b0>] (nmi_cpu_backtrace) from [<81a9cb5c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c510 r5:8281ad5c r4:ffffffff [<81a9ca2c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007c16 r8:8280c690 r7:000209a2 r6:00007c16 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa466c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa4604>] (sys_info) from [<803839d4>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa4604>] (sys_info) from [<803839d4>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:85ff630c [<80383570>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:80383570 r7:830d6380 r6:830d6380 r5:8321c800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:832dbf40 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 2820 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h: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 : [<81abdb80>] lr : [<80aa4144>] psr: 60000113 sp : eb17deb0 ip : eb17dec0 fp : eb17debc r10: 82959c04 r9 : 00000001 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 0000093b r2 : 00000000 r1 : 60000113 r0 : 84550440 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 85c76a40 DAC: 00000000 Call trace: [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abdb58>] (_raw_spin_unlock_irqrestore) from [<80aa4144>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa4124>] (pl011_console_device_unlock) from [<802e57c0>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149) [<802e5738>] (nbcon_emit_one) from [<802e5a40>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255) r6:82abf0fc r5:82959b68 r4:8467e000 [<802e5838>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5838 r7:84e54c00 r6:84e54c00 r5:8467e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb17dfb0 to 0xeb17dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:84ae6580