Extracting prog: 7m10.777036885s Minimizing prog: 1h18m4.526364392s Simplifying prog options: 0s Extracting C: 9m17.59482716s Simplifying C: 1h0m25.831391585s 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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000540)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000004000000000000004b64ffed850000006d000000a50000000500000095"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x2, '\x00', 0x0, 0x2}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000080)='sched_switch\x00', r0}, 0x10) program did not crash 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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000540)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000004000000000000004b64ffed850000006d000000a50000000500000095"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x2, '\x00', 0x0, 0x2}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000080)='sched_switch\x00', r0}, 0x10) program crashed: lost connection to test machine 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, &(0x7f0000000540)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000004000000000000004b64ffed850000006d000000a50000000500000095"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x2, '\x00', 0x0, 0x2}, 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, &(0x7f0000000540)={0x18, 0x5, 0x0, &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x2, '\x00', 0x0, 0x2}, 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, &(0x7f0000000540)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x2, '\x00', 0x0, 0x2}, 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, &(0x7f0000000540)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000004000000000000004b64ffed850000006d000000a50000000500000095"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, '\x00', 0x0, 0x2}, 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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000540)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000004000000000000004b64ffed850000006d000000a50000000500000095"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x2, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000540)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000004000000000000004b64ffed850000006d000000a50000000500000095"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x2, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000540)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000004000000000000004b64ffed850000006d000000a50000000500000095"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x2, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true reproducing took 3h13m37.60581019s repro crashed as (corrupted=false): INFO: task kworker/1:15:4116 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:15 state:D stack:0 pid:4116 tgid:4116 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:dfcedd84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfcedd8c r5:83f1b000 r4:83f1b000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83f1b000 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:dfcede08 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 r5:85c94bc0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83f1b000 r7:00000000 r6:83018600 r5:00001000 r4:7f05f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eaa4f000 [<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) r5:85c4d794 r4:85a2d080 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4d794 r4:85a2d080 [<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 r9:83f1b000 r8:85a2d0ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85a2d080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85a2d080 r8:802762fc r7:dfda5e60 r6:85a2d480 r5:83f1b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcedfb0 to 0xdfcedff8) 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 r4:84dbda80 INFO: task kworker/1:15:4116 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9b6c6000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/1:16:4117 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:16 state:D stack:0 pid:4117 tgid:4117 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:dfe01d84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfe01d8c r5:83f1a400 r4:83f1a400 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83f1a400 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:dfe01e08 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 r5:85be5940 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83f1a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e0323000 [<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) r5:85c4d394 r4:85a2d680 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4d394 r4:85a2d680 [<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 r9:83f1a400 r8:85a2d6ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85a2d680 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85a2d680 r8:802762fc r7:dfcede60 r6:85a2d700 r5:83f1a400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfe01fb0 to 0xdfe01ff8) 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 r4:84b4a540 INFO: task kworker/1:16:4117 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9bcec000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/1:197:4852 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:197 state:D stack:0 pid:4852 tgid:4852 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 r8:60000113 r7:829174e8 r6:eaa29d8c r5:85d0b000 r4:85d0b000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d0b000 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 r5:85be58c0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85d0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f03f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfb8b000 [<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) r5:85cf4394 r4:85beb400 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85cf4394 r4:85beb400 [<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 r9:85d0b000 r8:85beb42c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85beb400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85beb400 r8:802762fc r7:ea935e60 r6:85beb500 r5:85d0b000 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 r4:85c9e180 INFO: task kworker/1:197:4852 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9bcec000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/1:199:4873 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:199 state:D stack:0 pid:4873 tgid:4873 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:ea975d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea975d8c r5:85c66000 r4:85c66000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85c66000 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:ea975e08 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 r5:85a2ad80 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c66000 r7:00000000 r6:83018600 r5:00001000 r4:7f059000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e447b000 [<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) r5:85c4c394 r4:85beb980 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4c394 r4:85beb980 [<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 r9:85c66000 r8:85beb9ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85beb980 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85beb980 r8:802762fc r7:eaa29e60 r6:85c9a380 r5:85c66000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea975fb0 to 0xea975ff8) 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 r4:85be5740 INFO: task kworker/1:199:4873 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9c21d000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/1:200:4881 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:200 state:D stack:0 pid:4881 tgid:4881 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:ea9f1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea9f1d8c r5:85d0ec00 r4:85d0ec00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d0ec00 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:ea9f1e08 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 r5:85be5880 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85d0ec00 r7:00000000 r6:83018600 r5:00001000 r4:7f05f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea7b5000 [<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) r5:85c4fb94 r4:85bebb00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4fb94 r4:85bebb00 [<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 r9:85d0ec00 r8:85bebb2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85bebb00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85bebb00 r8:802762fc r7:ea935e60 r6:85bebb80 r5:85d0ec00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea9f1fb0 to 0xea9f1ff8) 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 r4:85be5a80 INFO: task kworker/1:200:4881 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9c945000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/0:198:4883 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:198 state:D stack:0 pid:4883 tgid:4883 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:ea9f9d84 r9:829174e8 r8:60000013 r7:829174e8 r6:ea9f9d8c r5:85d0d400 r4:85d0d400 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d0d400 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:ea9f9e08 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 r5:85be0640 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d0d400 r7:00000000 r6:83018400 r5:00001000 r4:7f067000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea923000 [<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) r5:85cf5f94 r4:85c9ac80 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85cf5f94 r4:85c9ac80 [<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 r9:85d0d400 r8:85c9acac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c9ac80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c9ac80 r8:802762fc r7:ea965e60 r6:85bebc80 r5:85d0d400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea9f9fb0 to 0xea9f9ff8) 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 r4:85ca5f00 INFO: task kworker/0:198:4883 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9cb20000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/0:201:4889 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:201 state:D stack:0 pid:4889 tgid:4889 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:eaa01d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa01d8c r5:85d1a400 r4:85d1a400 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d1a400 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:eaa01e08 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 r5:85cac600 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d1a400 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:eaa3f000 [<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) r5:85cf6794 r4:85c9a180 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85cf6794 r4:85c9a180 [<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 r9:85d1a400 r8:85c9a1ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c9a180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c9a180 r8:802762fc r7:ea9f9e60 r6:85c9a100 r5:85d1a400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa01fb0 to 0xeaa01ff8) 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 r4:85856380 INFO: task kworker/0:201:4889 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9cd21000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/0:203:4895 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:203 state:D stack:0 pid:4895 tgid:4895 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:eaa05d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa05d8c r5:85c76c00 r4:85c76c00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85c76c00 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:eaa05e08 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 r5:85cac380 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfcc1000 [<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) r5:85cf5794 r4:85ca8200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85cf5794 r4:85ca8200 [<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 r9:85c76c00 r8:85ca822c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85ca8200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85ca8200 r8:802762fc r7:eaa01e60 r6:85bebe80 r5:85c76c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa05fb0 to 0xeaa05ff8) 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 r4:85cac000 INFO: task kworker/0:203:4895 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9d0a9000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/0:204:4897 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:204 state:D stack:0 pid:4897 tgid:4897 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:eaa11d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa11d8c r5:85d28000 r4:85d28000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d28000 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:eaa11e08 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 r5:85c98e00 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d28000 r7:00000000 r6:83018400 r5:00001000 r4:7f063000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bd000 [<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) r5:85cf5b94 r4:85ca8300 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85cf5b94 r4:85ca8300 [<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 r9:85d28000 r8:85ca832c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85ca8300 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85ca8300 r8:802762fc r7:eaa05e60 r6:85beb900 r5:85d28000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa11fb0 to 0xeaa11ff8) 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 r4:85cac580 INFO: task kworker/0:204:4897 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9d0a9000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/0:205:4898 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:205 state:D stack:0 pid:4898 tgid:4898 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:eaa49d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa49d8c r5:85d28c00 r4:85d28c00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d28c00 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:eaa49e08 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 r5:85cacc40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d28c00 r7:00000000 r6:83018400 r5:00001000 r4:7f06f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eaa69000 [<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) r5:85cf7f94 r4:85ca8380 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85cf7f94 r4:85ca8380 [<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 r9:85d28c00 r8:85ca83ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85ca8380 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85ca8380 r8:802762fc r7:eaa05e60 r6:85c55e80 r5:85d28c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa49fb0 to 0xeaa49ff8) 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 r4:85cac580 INFO: task kworker/0:205:4898 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9d496000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:000d0013 r5:600d0093 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) r5:00000001 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) r7:00000001 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) r9:00007ba8 r8:8280c890 r7:0001e709 r6:00007ba8 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 r4:8614080c [<803832e4>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:803832e4 r7:8335af80 r6:8335af80 r5:8321d400 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 r4:832c0e40 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2817 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 : eb255eb0 ip : eb255ec0 fp : eb255ebc r10: 82959c04 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 00000952 r2 : 00000000 r1 : 60000113 r0 : 84f00c40 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 85f2f000 DAC: fffffffd 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 r4:84048c00 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5798 r7:84a1b100 r6:84a1b100 r5:84048c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb255fb0 to 0xeb255ff8) 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 r4:84f2ff80 final repro crashed as (corrupted=false): INFO: task kworker/1:15:4116 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:15 state:D stack:0 pid:4116 tgid:4116 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:dfcedd84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfcedd8c r5:83f1b000 r4:83f1b000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83f1b000 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:dfcede08 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 r5:85c94bc0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83f1b000 r7:00000000 r6:83018600 r5:00001000 r4:7f05f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eaa4f000 [<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) r5:85c4d794 r4:85a2d080 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4d794 r4:85a2d080 [<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 r9:83f1b000 r8:85a2d0ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85a2d080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85a2d080 r8:802762fc r7:dfda5e60 r6:85a2d480 r5:83f1b000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcedfb0 to 0xdfcedff8) 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 r4:84dbda80 INFO: task kworker/1:15:4116 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9b6c6000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/1:16:4117 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:16 state:D stack:0 pid:4117 tgid:4117 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:dfe01d84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfe01d8c r5:83f1a400 r4:83f1a400 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83f1a400 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:dfe01e08 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 r5:85be5940 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83f1a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e0323000 [<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) r5:85c4d394 r4:85a2d680 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4d394 r4:85a2d680 [<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 r9:83f1a400 r8:85a2d6ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85a2d680 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85a2d680 r8:802762fc r7:dfcede60 r6:85a2d700 r5:83f1a400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfe01fb0 to 0xdfe01ff8) 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 r4:84b4a540 INFO: task kworker/1:16:4117 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9bcec000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/1:197:4852 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:197 state:D stack:0 pid:4852 tgid:4852 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 r8:60000113 r7:829174e8 r6:eaa29d8c r5:85d0b000 r4:85d0b000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d0b000 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 r5:85be58c0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85d0b000 r7:00000000 r6:83018600 r5:00001000 r4:7f03f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfb8b000 [<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) r5:85cf4394 r4:85beb400 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85cf4394 r4:85beb400 [<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 r9:85d0b000 r8:85beb42c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85beb400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85beb400 r8:802762fc r7:ea935e60 r6:85beb500 r5:85d0b000 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 r4:85c9e180 INFO: task kworker/1:197:4852 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9bcec000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/1:199:4873 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:199 state:D stack:0 pid:4873 tgid:4873 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:ea975d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea975d8c r5:85c66000 r4:85c66000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85c66000 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:ea975e08 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 r5:85a2ad80 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c66000 r7:00000000 r6:83018600 r5:00001000 r4:7f059000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e447b000 [<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) r5:85c4c394 r4:85beb980 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4c394 r4:85beb980 [<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 r9:85c66000 r8:85beb9ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85beb980 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85beb980 r8:802762fc r7:eaa29e60 r6:85c9a380 r5:85c66000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea975fb0 to 0xea975ff8) 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 r4:85be5740 INFO: task kworker/1:199:4873 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9c21d000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/1:200:4881 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:200 state:D stack:0 pid:4881 tgid:4881 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:ea9f1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea9f1d8c r5:85d0ec00 r4:85d0ec00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d0ec00 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:ea9f1e08 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 r5:85be5880 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85d0ec00 r7:00000000 r6:83018600 r5:00001000 r4:7f05f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea7b5000 [<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) r5:85c4fb94 r4:85bebb00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4fb94 r4:85bebb00 [<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 r9:85d0ec00 r8:85bebb2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85bebb00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85bebb00 r8:802762fc r7:ea935e60 r6:85bebb80 r5:85d0ec00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea9f1fb0 to 0xea9f1ff8) 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 r4:85be5a80 INFO: task kworker/1:200:4881 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9c945000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/0:198:4883 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:198 state:D stack:0 pid:4883 tgid:4883 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:ea9f9d84 r9:829174e8 r8:60000013 r7:829174e8 r6:ea9f9d8c r5:85d0d400 r4:85d0d400 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d0d400 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:ea9f9e08 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 r5:85be0640 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d0d400 r7:00000000 r6:83018400 r5:00001000 r4:7f067000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea923000 [<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) r5:85cf5f94 r4:85c9ac80 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85cf5f94 r4:85c9ac80 [<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 r9:85d0d400 r8:85c9acac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c9ac80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c9ac80 r8:802762fc r7:ea965e60 r6:85bebc80 r5:85d0d400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea9f9fb0 to 0xea9f9ff8) 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 r4:85ca5f00 INFO: task kworker/0:198:4883 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9cb20000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/0:201:4889 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:201 state:D stack:0 pid:4889 tgid:4889 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:eaa01d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa01d8c r5:85d1a400 r4:85d1a400 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d1a400 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:eaa01e08 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 r5:85cac600 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d1a400 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:eaa3f000 [<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) r5:85cf6794 r4:85c9a180 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85cf6794 r4:85c9a180 [<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 r9:85d1a400 r8:85c9a1ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85c9a180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85c9a180 r8:802762fc r7:ea9f9e60 r6:85c9a100 r5:85d1a400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa01fb0 to 0xeaa01ff8) 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 r4:85856380 INFO: task kworker/0:201:4889 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9cd21000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/0:203:4895 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:203 state:D stack:0 pid:4895 tgid:4895 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:eaa05d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa05d8c r5:85c76c00 r4:85c76c00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85c76c00 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:eaa05e08 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 r5:85cac380 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85c76c00 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfcc1000 [<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) r5:85cf5794 r4:85ca8200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85cf5794 r4:85ca8200 [<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 r9:85c76c00 r8:85ca822c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85ca8200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85ca8200 r8:802762fc r7:eaa01e60 r6:85bebe80 r5:85c76c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa05fb0 to 0xeaa05ff8) 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 r4:85cac000 INFO: task kworker/0:203:4895 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9d0a9000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/0:204:4897 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:204 state:D stack:0 pid:4897 tgid:4897 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:eaa11d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa11d8c r5:85d28000 r4:85d28000 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d28000 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:eaa11e08 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 r5:85c98e00 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d28000 r7:00000000 r6:83018400 r5:00001000 r4:7f063000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bd000 [<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) r5:85cf5b94 r4:85ca8300 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85cf5b94 r4:85ca8300 [<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 r9:85d28000 r8:85ca832c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85ca8300 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85ca8300 r8:802762fc r7:eaa05e60 r6:85beb900 r5:85d28000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa11fb0 to 0xeaa11ff8) 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 r4:85cac580 INFO: task kworker/0:204:4897 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9d0a9000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 INFO: task kworker/0:205:4898 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:205 state:D stack:0 pid:4898 tgid:4898 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:eaa49d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa49d8c r5:85d28c00 r4:85d28c00 [<81ab30bc>] (schedule) from [<81ab3270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d28c00 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:eaa49e08 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 r5:85cacc40 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d28c00 r7:00000000 r6:83018400 r5:00001000 r4:7f06f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eaa69000 [<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) r5:85cf7f94 r4:85ca8380 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85cf7f94 r4:85ca8380 [<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 r9:85d28c00 r8:85ca83ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85ca8380 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85ca8380 r8:802762fc r7:eaa05e60 r6:85c55e80 r5:85d28c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa49fb0 to 0xeaa49ff8) 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 r4:85cac580 INFO: task kworker/0:205:4898 is blocked on a mutex likely owned by task kworker/1:195:4818. task:kworker/1:195 state:R running task stack:0 pid:4818 tgid:4818 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 r9:85c7e000 r8:80200c04 r7:ea935d54 r6:ffffffff r5:85c7e000 r4:00000000 [<81ab34dc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea935d20 to 0xea935d68) 5d20: 9d496000 ebc63000 00000001 80239018 7f04f000 00000001 82ace204 82acd5e0 5d40: 7f04f000 ebc63000 8280ca38 ea935d9c ea935da0 ea935d70 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:ea935dc0 r5:ea935e08 r4:ea935dc0 [<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 r5:85be5000 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85c7e000 r7:00000000 r6:83018600 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea5b9000 [<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) r5:85c4f794 r4:85be3f00 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85c4f794 r4:85be3f00 [<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 r9:85c7e000 r8:85be3f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85be3f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85be3f00 r8:802762fc r7:ea829e60 r6:85be3b80 r5:85c7e000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea935fb0 to 0xea935ff8) 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 r4:85be43c0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:000d0013 r5:600d0093 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) r5:00000001 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) r7:00000001 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) r9:00007ba8 r8:8280c890 r7:0001e709 r6:00007ba8 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 r4:8614080c [<803832e4>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:803832e4 r7:8335af80 r6:8335af80 r5:8321d400 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 r4:832c0e40 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2817 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 : eb255eb0 ip : eb255ec0 fp : eb255ebc r10: 82959c04 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 00000952 r2 : 00000000 r1 : 60000113 r0 : 84f00c40 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 85f2f000 DAC: fffffffd 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 r4:84048c00 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5798 r7:84a1b100 r6:84a1b100 r5:84048c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb255fb0 to 0xeb255ff8) 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 r4:84f2ff80