Extracting prog: 12m56.52263928s Minimizing prog: 1h18m2.412625231s Simplifying prog options: 0s Extracting C: 9m18.940518495s Simplifying C: 1h2m28.639071001s 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$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000340)={0x18, 0x5, &(0x7f0000000040)=ANY=[@ANYBLOB="180100002100000000000000000000008500000075000000a50000002300000095"], &(0x7f00000000c0)='GPL\x00'}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000100)={&(0x7f00000001c0)='mmap_lock_acquire_returned\x00', r0}, 0x10) 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$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000340)={0x18, 0x5, &(0x7f0000000040)=ANY=[@ANYBLOB="180100002100000000000000000000008500000075000000a50000002300000095"], &(0x7f00000000c0)='GPL\x00'}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000100)={&(0x7f00000001c0)='mmap_lock_acquire_returned\x00', r0}, 0x10) 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$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000340)={0x18, 0x5, &(0x7f0000000040)=ANY=[@ANYBLOB="180100002100000000000000000000008500000075000000a50000002300000095"], &(0x7f00000000c0)='GPL\x00'}, 0x94) 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$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_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$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000340)={0x18, 0x5, 0x0, &(0x7f00000000c0)='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$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000340)={0x18, 0x5, &(0x7f0000000040)=ANY=[@ANYBLOB], &(0x7f00000000c0)='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$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000340)={0x18, 0x5, &(0x7f0000000040)=ANY=[@ANYBLOB="180100002100000000000000000000008500000075000000a50000002300000095"], 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$BPF_PROG_RAW_TRACEPOINT_LOAD program crashed: INFO: task hung in _vm_unmap_aliases simplifying C reproducer testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_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$BPF_PROG_RAW_TRACEPOINT_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_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$BPF_PROG_RAW_TRACEPOINT_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_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$BPF_PROG_RAW_TRACEPOINT_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000340)={0x18, 0x5, &(0x7f0000000040)=ANY=[@ANYBLOB="180100002100000000000000000000008500000075000000a50000002300000095"], &(0x7f00000000c0)='GPL\x00'}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000340)={0x18, 0x5, &(0x7f0000000040)=ANY=[@ANYBLOB="180100002100000000000000000000008500000075000000a50000002300000095"], &(0x7f00000000c0)='GPL\x00'}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000340)={0x18, 0x5, &(0x7f0000000040)=ANY=[@ANYBLOB="180100002100000000000000000000008500000075000000a50000002300000095"], &(0x7f00000000c0)='GPL\x00'}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true reproducing took 3h23m14.078585933s repro crashed as (corrupted=false): INFO: task kworker/0:21:4109 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:21 state:D stack:0 pid:4109 tgid:4109 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:e00c1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:e00c1d8c r5:844ebc00 r4:844ebc00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:844ebc00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e00c1e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:861509c0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:844ebc00 r7:00000000 r6:83018400 r5:00001000 r4:7f075000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eab49000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:861aeb94 r4:85fcda80 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:861aeb94 r4:85fcda80 [<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 r9:844ebc00 r8:85fcdaac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85fcda80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85fcda80 r8:802762fc r7:e0089e60 r6:85fcd400 r5:844ebc00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe00c1fb0 to 0xe00c1ff8) 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 r4:85fcf780 INFO: task kworker/0:21:4109 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 916df000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/0:23:4115 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:23 state:D stack:0 pid:4115 tgid:4115 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:e00e1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:e00e1d8c r5:8397b000 r4:8397b000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:8397b000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e00e1e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86150840 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8397b000 r7:00000000 r6:83018400 r5:00001000 r4:7f04b000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e006b000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:861aef94 r4:85f7a080 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:861aef94 r4:85f7a080 [<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 r9:8397b000 r8:85f7a0ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85f7a080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85f7a080 r8:802762fc r7:e00bde60 r6:85f7a100 r5:8397b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe00e1fb0 to 0xe00e1ff8) 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 r4:85f72f40 INFO: task kworker/0:23:4115 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 91e03000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/0:182:4894 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:182 state:D stack:0 pid:4894 tgid:4894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa41d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa41d8c r5:85943000 r4:85943000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85943000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa41e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86137680 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85943000 r7:00000000 r6:83018400 r5:00001000 r4:7f04f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e83d9000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86194f94 r4:8614e300 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:86194f94 r4:8614e300 [<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 r9:85943000 r8:8614e32c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:8614e300 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8614e300 r8:802762fc r7:dfaa5e60 r6:8614cf80 r5:85943000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa41fb0 to 0xeaa41ff8) 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 r4:8613d900 INFO: task kworker/0:182:4894 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 96d65000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/0:183:4902 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:183 state:D stack:0 pid:4902 tgid:4902 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa8dd84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa8dd8c r5:85946000 r4:85946000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85946000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa8de08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86150040 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85946000 r7:00000000 r6:83018400 r5:00001000 r4:7f06d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eab05000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:861ae394 r4:8614e400 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:861ae394 r4:8614e400 [<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 r9:85946000 r8:8614e42c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:8614e400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8614e400 r8:802762fc r7:eaa41e60 r6:8612b400 r5:85946000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa8dfb0 to 0xeaa8dff8) 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 r4:86143640 INFO: task kworker/0:183:4902 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:226:4906 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:226 state:D stack:0 pid:4906 tgid:4906 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa29d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa29d8c r5:86106c00 r4:86106c00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:86106c00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa29e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032c80 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86106c00 r7:00000000 r6:83018600 r5:00001000 r4:7f063000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea43f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:861ad794 r4:8612b680 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:861ad794 r4:8612b680 [<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 r9:86106c00 r8:8612b6ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b680 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b680 r8:802762fc r7:eaa85e60 r6:8614e500 r5:86106c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa29fb0 to 0xeaa29ff8) 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 r4:86032cc0 INFO: task kworker/1:226:4906 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:227:4908 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:227 state:D stack:0 pid:4908 tgid:4908 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab01d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eab01d8c r5:85e48000 r4:85e48000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85e48000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab01e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032280 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85e48000 r7:00000000 r6:83018600 r5:00001000 r4:7f069000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eaaaf000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8618f794 r4:8612b780 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8618f794 r4:8612b780 [<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 r9:85e48000 r8:8612b7ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b780 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b780 r8:802762fc r7:eaa29e60 r6:8614e680 r5:85e48000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab01fb0 to 0xeab01ff8) 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 r4:860321c0 INFO: task kworker/1:227:4908 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:228:4910 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:228 state:D stack:0 pid:4910 tgid:4910 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa89d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa89d8c r5:85e48c00 r4:85e48c00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85e48c00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa89e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85fcffc0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85e48c00 r7:00000000 r6:83018600 r5:00001000 r4:7f065000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5e7000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86171f94 r4:8612b700 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86171f94 r4:8612b700 [<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 r9:85e48c00 r8:8612b72c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b700 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b700 r8:802762fc r7:eab01e60 r6:8614e780 r5:85e48c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa89fb0 to 0xeaa89ff8) 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 r4:86032c40 INFO: task kworker/1:228:4910 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:229:4913 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:229 state:D stack:0 pid:4913 tgid:4913 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaaa9d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaaa9d8c r5:85e4a400 r4:85e4a400 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85e4a400 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaaa9e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86148080 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85e4a400 r7:00000000 r6:83018600 r5:00001000 r4:7f067000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea713000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8618fb94 r4:8612b800 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8618fb94 r4:8612b800 [<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 r9:85e4a400 r8:8612b82c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b800 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b800 r8:802762fc r7:eab01e60 r6:8614e900 r5:85e4a400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaaa9fb0 to 0xeaaa9ff8) 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 r4:85fcff80 INFO: task kworker/1:229:4913 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:230:4914 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:230 state:D stack:0 pid:4914 tgid:4914 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa95d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa95d8c r5:85943c00 r4:85943c00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85943c00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa95e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032dc0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85943c00 r7:00000000 r6:83018600 r5:00001000 r4:7f073000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eab25000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:861acf94 r4:8612b900 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:861acf94 r4:8612b900 [<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 r9:85943c00 r8:8612b92c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b900 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b900 r8:802762fc r7:eab01e60 r6:8612b980 r5:85943c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa95fb0 to 0xeaa95ff8) 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 r4:86146780 INFO: task kworker/1:230:4914 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:231:4917 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:231 state:D stack:0 pid:4917 tgid:4917 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaaadd84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaaadd8c r5:85898000 r4:85898000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85898000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaaade08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86148500 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85898000 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfbeb000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85a27f94 r4:8612ba80 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85a27f94 r4:8612ba80 [<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 r9:85898000 r8:8612baac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612ba80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612ba80 r8:802762fc r7:eaa95e60 r6:8612bb00 r5:85898000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaaadfb0 to 0xeaaadff8) 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 r4:86032240 INFO: task kworker/1:231:4917 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 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 r6:00000013 r5:60000093 r4:8229596c [<80201b58>] (show_stack) from [<8021ee34>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b58>] (show_stack) from [<8021ee34>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021edc4>] (dump_stack_lvl) from [<8021ee58>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<8021ee40>] (dump_stack) from [<81a9b920>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9b7c0>] (nmi_cpu_backtrace) from [<81a9ba6c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c710 r5:8281af5c r4:ffffffff [<81a9b93c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007ba4 r8:8280c890 r7:0001fa06 r6:00007ba4 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa357c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa357c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa357c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa3514>] (sys_info) from [<80383748>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa3514>] (sys_info) from [<80383748>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:864d7c0c [<803832e4>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:803832e4 r7:830d6a00 r6:830d6a00 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 r4:833ce700 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 2816 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 : [<81abca90>] lr : [<80aa3928>] psr: 60000113 sp : eb07deb0 ip : eb07dec0 fp : eb07debc r10: 82959c04 r9 : 00000001 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 000008ee r2 : 00000000 r1 : 60000113 r0 : 84ee8040 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 84de2740 DAC: 00000000 Call trace: [<81abca68>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abca68>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abca68>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa3908>] (pl011_console_device_unlock) from [<802e5720>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149) [<802e5698>] (nbcon_emit_one) from [<802e59a0>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255) r6:82abf0fc r5:82959b68 r4:8397d400 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5798 r7:84f56d80 r6:84f56d80 r5:8397d400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb07dfb0 to 0xeb07dff8) 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 r4:8380db40 final repro crashed as (corrupted=false): INFO: task kworker/0:21:4109 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:21 state:D stack:0 pid:4109 tgid:4109 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:e00c1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:e00c1d8c r5:844ebc00 r4:844ebc00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:844ebc00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e00c1e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:861509c0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:844ebc00 r7:00000000 r6:83018400 r5:00001000 r4:7f075000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eab49000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:861aeb94 r4:85fcda80 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:861aeb94 r4:85fcda80 [<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 r9:844ebc00 r8:85fcdaac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85fcda80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85fcda80 r8:802762fc r7:e0089e60 r6:85fcd400 r5:844ebc00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe00c1fb0 to 0xe00c1ff8) 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 r4:85fcf780 INFO: task kworker/0:21:4109 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 916df000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/0:23:4115 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:23 state:D stack:0 pid:4115 tgid:4115 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:e00e1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:e00e1d8c r5:8397b000 r4:8397b000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:8397b000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e00e1e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86150840 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8397b000 r7:00000000 r6:83018400 r5:00001000 r4:7f04b000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e006b000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:861aef94 r4:85f7a080 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:861aef94 r4:85f7a080 [<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 r9:8397b000 r8:85f7a0ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85f7a080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85f7a080 r8:802762fc r7:e00bde60 r6:85f7a100 r5:8397b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe00e1fb0 to 0xe00e1ff8) 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 r4:85f72f40 INFO: task kworker/0:23:4115 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 91e03000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/0:182:4894 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:182 state:D stack:0 pid:4894 tgid:4894 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa41d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa41d8c r5:85943000 r4:85943000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85943000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa41e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86137680 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85943000 r7:00000000 r6:83018400 r5:00001000 r4:7f04f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e83d9000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86194f94 r4:8614e300 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:86194f94 r4:8614e300 [<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 r9:85943000 r8:8614e32c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:8614e300 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8614e300 r8:802762fc r7:dfaa5e60 r6:8614cf80 r5:85943000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa41fb0 to 0xeaa41ff8) 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 r4:8613d900 INFO: task kworker/0:182:4894 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 96d65000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/0:183:4902 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:183 state:D stack:0 pid:4902 tgid:4902 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa8dd84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa8dd8c r5:85946000 r4:85946000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85946000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa8de08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86150040 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85946000 r7:00000000 r6:83018400 r5:00001000 r4:7f06d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eab05000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:861ae394 r4:8614e400 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:861ae394 r4:8614e400 [<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 r9:85946000 r8:8614e42c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:8614e400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8614e400 r8:802762fc r7:eaa41e60 r6:8612b400 r5:85946000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa8dfb0 to 0xeaa8dff8) 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 r4:86143640 INFO: task kworker/0:183:4902 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:226:4906 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:226 state:D stack:0 pid:4906 tgid:4906 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa29d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa29d8c r5:86106c00 r4:86106c00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:86106c00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa29e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032c80 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:86106c00 r7:00000000 r6:83018600 r5:00001000 r4:7f063000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea43f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:861ad794 r4:8612b680 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:861ad794 r4:8612b680 [<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 r9:86106c00 r8:8612b6ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b680 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b680 r8:802762fc r7:eaa85e60 r6:8614e500 r5:86106c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa29fb0 to 0xeaa29ff8) 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 r4:86032cc0 INFO: task kworker/1:226:4906 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:227:4908 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:227 state:D stack:0 pid:4908 tgid:4908 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab01d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eab01d8c r5:85e48000 r4:85e48000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85e48000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab01e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032280 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85e48000 r7:00000000 r6:83018600 r5:00001000 r4:7f069000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eaaaf000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8618f794 r4:8612b780 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8618f794 r4:8612b780 [<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 r9:85e48000 r8:8612b7ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b780 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b780 r8:802762fc r7:eaa29e60 r6:8614e680 r5:85e48000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab01fb0 to 0xeab01ff8) 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 r4:860321c0 INFO: task kworker/1:227:4908 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:228:4910 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:228 state:D stack:0 pid:4910 tgid:4910 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa89d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa89d8c r5:85e48c00 r4:85e48c00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85e48c00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa89e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85fcffc0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85e48c00 r7:00000000 r6:83018600 r5:00001000 r4:7f065000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5e7000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86171f94 r4:8612b700 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86171f94 r4:8612b700 [<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 r9:85e48c00 r8:8612b72c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b700 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b700 r8:802762fc r7:eab01e60 r6:8614e780 r5:85e48c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa89fb0 to 0xeaa89ff8) 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 r4:86032c40 INFO: task kworker/1:228:4910 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:229:4913 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:229 state:D stack:0 pid:4913 tgid:4913 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaaa9d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaaa9d8c r5:85e4a400 r4:85e4a400 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85e4a400 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaaa9e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86148080 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85e4a400 r7:00000000 r6:83018600 r5:00001000 r4:7f067000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea713000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8618fb94 r4:8612b800 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8618fb94 r4:8612b800 [<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 r9:85e4a400 r8:8612b82c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b800 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b800 r8:802762fc r7:eab01e60 r6:8614e900 r5:85e4a400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaaa9fb0 to 0xeaaa9ff8) 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 r4:85fcff80 INFO: task kworker/1:229:4913 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:230:4914 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:230 state:D stack:0 pid:4914 tgid:4914 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa95d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa95d8c r5:85943c00 r4:85943c00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85943c00 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa95e08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032dc0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85943c00 r7:00000000 r6:83018600 r5:00001000 r4:7f073000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eab25000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:861acf94 r4:8612b900 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:861acf94 r4:8612b900 [<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 r9:85943c00 r8:8612b92c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b900 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b900 r8:802762fc r7:eab01e60 r6:8612b980 r5:85943c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa95fb0 to 0xeaa95ff8) 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 r4:86146780 INFO: task kworker/1:230:4914 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 INFO: task kworker/1:231:4917 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:231 state:D stack:0 pid:4917 tgid:4917 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab30e8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e3c>] (__schedule) from [<81ab30e8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaaadd84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaaadd8c r5:85898000 r4:85898000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85898000 r4:829174e4 [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3258>] (schedule_preempt_disabled) from [<81ab68f4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab629c>] (__mutex_lock.constprop.0) from [<81ab72fc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaaade08 r4:00000000 [<81ab72e8>] (__mutex_lock_slowpath) from [<81ab733c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab7300>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86148500 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85898000 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfbeb000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85a27f94 r4:8612ba80 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85a27f94 r4:8612ba80 [<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 r9:85898000 r8:8612baac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612ba80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612ba80 r8:802762fc r7:eaa95e60 r6:8612bb00 r5:85898000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaaadfb0 to 0xeaaadff8) 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 r4:86032240 INFO: task kworker/1:231:4917 is blocked on a mutex likely owned by task kworker/1:224:4900. task:kworker/1:224 state:R running task stack:0 pid:4900 tgid:4900 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e3c>] (__schedule) from [<81ab351c>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85945400 r8:80200c04 r7:eaa85d54 r6:ffffffff r5:85945400 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaa85d20 to 0xeaa85d68) 5d20: 97af5000 ec021000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ec021000 8280ca38 eaa85d9c eaa85da0 eaa85d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaa85dc0 r5:eaa85e08 r4:eaa85dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86032e40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85945400 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e838f000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:86181f94 r4:8612b200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:86181f94 r4:8612b200 [<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 r9:85945400 r8:8612b22c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8612b200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8612b200 r8:802762fc r7:eaa75e60 r6:8612b280 r5:85945400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa85fb0 to 0xeaa85ff8) 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 r4:86149480 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 r6:00000013 r5:60000093 r4:8229596c [<80201b58>] (show_stack) from [<8021ee34>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b58>] (show_stack) from [<8021ee34>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021edc4>] (dump_stack_lvl) from [<8021ee58>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<8021ee40>] (dump_stack) from [<81a9b920>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9b7c0>] (nmi_cpu_backtrace) from [<81a9ba6c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c710 r5:8281af5c r4:ffffffff [<81a9b93c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007ba4 r8:8280c890 r7:0001fa06 r6:00007ba4 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa357c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa357c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa357c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa3514>] (sys_info) from [<80383748>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa3514>] (sys_info) from [<80383748>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:864d7c0c [<803832e4>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:803832e4 r7:830d6a00 r6:830d6a00 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 r4:833ce700 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 2816 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 : [<81abca90>] lr : [<80aa3928>] psr: 60000113 sp : eb07deb0 ip : eb07dec0 fp : eb07debc r10: 82959c04 r9 : 00000001 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 000008ee r2 : 00000000 r1 : 60000113 r0 : 84ee8040 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 84de2740 DAC: 00000000 Call trace: [<81abca68>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abca68>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abca68>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa3908>] (pl011_console_device_unlock) from [<802e5720>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149) [<802e5698>] (nbcon_emit_one) from [<802e59a0>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255) r6:82abf0fc r5:82959b68 r4:8397d400 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5798 r7:84f56d80 r6:84f56d80 r5:8397d400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb07dfb0 to 0xeb07dff8) 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 r4:8380db40