Extracting prog: 19m23.824568259s Minimizing prog: 1h18m14.288185079s Simplifying prog options: 0s Extracting C: 9m20.64539162s Simplifying C: 1h0m33.211000649s 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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="180000000020000000000000f9ffff0b85000000ae000000850000000700000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000480)={&(0x7f0000000040)='sys_exit\x00', r0}, 0x90) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 5m0s testing program (duration=5m0s, {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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="180000000020000000000000f9ffff0b85000000ae000000850000000700000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000480)={&(0x7f0000000040)='sys_exit\x00', r0}, 0x90) 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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="180000000020000000000000f9ffff0b85000000ae000000850000000700000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000480)={&(0x7f0000000040)='sys_exit\x00', r0}, 0x90) program crashed: INFO: task hung in _vm_unmap_aliases single: successfully extracted reproducer found reproducer with 2 syscalls minimizing guilty program testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="180000000020000000000000f9ffff0b85000000ae000000850000000700000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\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, &(0x7f0000000200)={0x11, 0x5, 0x0, &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\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, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\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, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="180000000020000000000000f9ffff0b85000000ae000000850000000700000095"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="180000000020000000000000f9ffff0b85000000ae000000850000000700000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="180000000020000000000000f9ffff0b85000000ae000000850000000700000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="180000000020000000000000f9ffff0b85000000ae000000850000000700000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true reproducing took 3h29m35.369063791s repro crashed as (corrupted=false): INFO: task kworker/1:20:4132 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:20 state:D stack:0 pid:4132 tgid:4132 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfbf9d84 r9:829174a8 r8:600f0113 r7:829174a8 r6:dfbf9d8c r5:84ff6000 r4:84ff6000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:84ff6000 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbf9e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85b54f40 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:84ff6000 r7:00000000 r6:83018600 r5:00001000 r4:7f051000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e83d7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d98b8c r4:85b52a00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d98b8c r4:85b52a00 [<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 r9:84ff6000 r8:85b52a2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85b52a00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b52a00 r8:802762fc r7:dfbdde60 r6:85b52a80 r5:84ff6000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbf9fb0 to 0xdfbf9ff8) 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 r4:85b54cc0 INFO: task kworker/1:20:4132 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: aa560000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/1:21:4135 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:21 state:D stack:0 pid:4135 tgid:4135 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfc41d84 r9:829174a8 r8:60000013 r7:829174a8 r6:dfc41d8c r5:84ff4800 r4:84ff4800 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:84ff4800 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfc41e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d20600 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:84ff4800 r7:00000000 r6:83018600 r5:00001000 r4:7f057000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfab9000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d9a38c r4:85b52c80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d9a38c r4:85b52c80 [<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 r9:84ff4800 r8:85b52cac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85b52c80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b52c80 r8:802762fc r7:dfb9de60 r6:85b52880 r5:84ff4800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfc41fb0 to 0xdfc41ff8) 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 r4:85b54b40 INFO: task kworker/1:21:4135 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: aab05000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/1:198:4956 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:198 state:D stack:0 pid:4956 tgid:4956 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa35d84 r9:829174a8 r8:60000113 r7:829174a8 r6:eaa35d8c r5:852de000 r4:852de000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:852de000 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa35e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d20b80 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:852de000 r7:00000000 r6:83018600 r5:00001000 r4:7f059000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfba3000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d9b78c r4:85d02d80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d9b78c r4:85d02d80 [<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 r9:852de000 r8:85d02dac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d02d80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d02d80 r8:802762fc r7:ea9c9e60 r6:85d02e80 r5:852de000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa35fb0 to 0xeaa35ff8) 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 r4:85d06900 INFO: task kworker/1:198:4956 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: aade8000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/1:199:4957 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:4957 tgid:4957 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa7dd84 r9:829174a8 r8:60000013 r7:829174a8 r6:eaa7dd8c r5:852dec00 r4:852dec00 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:852dec00 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa7de08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d20780 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:852dec00 r7:00000000 r6:83018600 r5:00001000 r4:7f05f000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea71b000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d9a78c r4:85d02f80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d9a78c r4:85d02f80 [<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 r9:852dec00 r8:85d02fac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d02f80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d02f80 r8:802762fc r7:ea9c9e60 r6:85d02380 r5:852dec00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa7dfb0 to 0xeaa7dff8) 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 r4:85d06900 INFO: task kworker/1:199:4957 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: aade8000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/1:200:4971 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:4971 tgid:4971 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab51d84 r9:829174a8 r8:600f0113 r7:829174a8 r6:eab51d8c r5:85ce0000 r4:85ce0000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85ce0000 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab51e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d203c0 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85ce0000 r7:00000000 r6:83018600 r5:00001000 r4:7f067000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea953000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d99f8c r4:85d19100 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d99f8c r4:85d19100 [<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 r9:85ce0000 r8:85d1912c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d19100 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d19100 r8:802762fc r7:eaa35e60 r6:85d19180 r5:85ce0000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab51fb0 to 0xeab51ff8) 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 r4:85d03740 INFO: task kworker/1:200:4971 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: ab2ee000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/0:240:4979 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:240 state:D stack:0 pid:4979 tgid:4979 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab6dd84 r9:829174a8 r8:60000013 r7:829174a8 r6:eab6dd8c r5:85d64800 r4:85d64800 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d64800 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab6de08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d03740 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d64800 r7:00000000 r6:83018400 r5:00001000 r4:7f04f000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e4327000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d4078c r4:85d1f080 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d4078c r4:85d1f080 [<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 r9:85d64800 r8:85d1f0ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1f080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1f080 r8:802762fc r7:eab69e60 r6:85d1f100 r5:85d64800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab6dfb0 to 0xeab6dff8) 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 r4:85d083c0 INFO: task kworker/0:240:4979 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: ab2ee000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/0:241:4981 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:241 state:D stack:0 pid:4981 tgid:4981 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab75d84 r9:829174a8 r8:60000013 r7:829174a8 r6:eab75d8c r5:85ce1800 r4:85ce1800 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85ce1800 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab75e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d1b040 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85ce1800 r7:00000000 r6:83018400 r5:00001000 r4:7f053000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea5eb000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d42f8c r4:85d1f200 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d42f8c r4:85d1f200 [<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 r9:85ce1800 r8:85d1f22c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1f200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1f200 r8:802762fc r7:eab69e60 r6:85d19380 r5:85ce1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab75fb0 to 0xeab75ff8) 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 r4:85d0e440 INFO: task kworker/0:241:4981 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: ab58a000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/0:242:4983 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:242 state:D stack:0 pid:4983 tgid:4983 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab71d84 r9:829174a8 r8:60000013 r7:829174a8 r6:eab71d8c r5:85ce2400 r4:85ce2400 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85ce2400 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab71e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d1b300 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85ce2400 r7:00000000 r6:83018400 r5:00001000 r4:7f055000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea6ed000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d4378c r4:85d1f280 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d4378c r4:85d1f280 [<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 r9:85ce2400 r8:85d1f2ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1f280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1f280 r8:802762fc r7:eab75e60 r6:85d19480 r5:85ce2400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab71fb0 to 0xeab71ff8) 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 r4:85d0e140 INFO: task kworker/0:242:4983 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: ab58a000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/0:243:4986 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:243 state:D stack:0 pid:4986 tgid:4986 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab7dd84 r9:829174a8 r8:60000013 r7:829174a8 r6:eab7dd8c r5:85ce3c00 r4:85ce3c00 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85ce3c00 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab7de08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d1b880 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85ce3c00 r7:00000000 r6:83018400 r5:00001000 r4:7f065000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea821000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d37f8c r4:85d1f380 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d37f8c r4:85d1f380 [<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 r9:85ce3c00 r8:85d1f3ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1f380 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1f380 r8:802762fc r7:eab69e60 r6:85d19600 r5:85ce3c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab7dfb0 to 0xeab7dff8) 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 r4:85d1b400 INFO: task kworker/0:243:4986 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: ab7d3000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/0:244:4987 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:244 state:D stack:0 pid:4987 tgid:4987 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab8dd84 r9:829174a8 r8:60000113 r7:829174a8 r6:eab8dd8c r5:85ce4800 r4:85ce4800 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85ce4800 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab8de08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d1bd80 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85ce4800 r7:00000000 r6:83018400 r5:00001000 r4:7f069000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:eaa0b000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85aaa78c r4:85d1f480 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85aaa78c r4:85d1f480 [<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 r9:85ce4800 r8:85d1f4ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1f480 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1f480 r8:802762fc r7:eab7de60 r6:85d19700 r5:85ce4800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab8dfb0 to 0xeab8dff8) 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 r4:85d1b3c0 INFO: task kworker/0:244:4987 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: abacd000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000113 r5:60000193 r4:8229579c [<80201b58>] (show_stack) from [<8021edec>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b58>] (show_stack) from [<8021edec>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021ed7c>] (dump_stack_lvl) from [<8021ee10>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<8021edf8>] (dump_stack) from [<81a9b500>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9b3a0>] (nmi_cpu_backtrace) from [<81a9b64c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c6d0 r5:8281af1c r4:ffffffff [<81a9b51c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007b93 r8:8280c850 r7:0002241a r6:00007b93 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa315c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa315c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa315c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa30f4>] (sys_info) from [<80383788>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa30f4>] (sys_info) from [<80383788>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:861ca90c [<80383324>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:80383324 r7:832d4180 r6:832d4180 r5:832e2400 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 r4:838c6500 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 2819 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 : [<81abc670>] lr : [<80aa3828>] psr: 60000113 sp : eb195eb0 ip : eb195ec0 fp : eb195ebc r10: 82959bc4 r9 : 00000001 r8 : 00000000 r7 : 00000117 r6 : 82959b28 r5 : 00000000 r4 : 00000001 r3 : 00000767 r2 : 00000000 r1 : 60000113 r0 : 84676840 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 8585d7c0 DAC: 00000000 Call trace: [<81abc648>] (_raw_spin_unlock_irqrestore) from [<80aa3828>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abc648>] (_raw_spin_unlock_irqrestore) from [<80aa3828>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abc648>] (_raw_spin_unlock_irqrestore) from [<80aa3828>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa3808>] (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 r5:82959b28 r4:8443c800 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b28 r8:802e5798 r7:84f56d80 r6:84f56d80 r5:8443c800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb195fb0 to 0xeb195ff8) 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 r4:85011840 final repro crashed as (corrupted=false): INFO: task kworker/1:20:4132 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:20 state:D stack:0 pid:4132 tgid:4132 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfbf9d84 r9:829174a8 r8:600f0113 r7:829174a8 r6:dfbf9d8c r5:84ff6000 r4:84ff6000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:84ff6000 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbf9e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85b54f40 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:84ff6000 r7:00000000 r6:83018600 r5:00001000 r4:7f051000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e83d7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d98b8c r4:85b52a00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d98b8c r4:85b52a00 [<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 r9:84ff6000 r8:85b52a2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85b52a00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b52a00 r8:802762fc r7:dfbdde60 r6:85b52a80 r5:84ff6000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbf9fb0 to 0xdfbf9ff8) 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 r4:85b54cc0 INFO: task kworker/1:20:4132 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: aa560000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/1:21:4135 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:21 state:D stack:0 pid:4135 tgid:4135 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfc41d84 r9:829174a8 r8:60000013 r7:829174a8 r6:dfc41d8c r5:84ff4800 r4:84ff4800 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:84ff4800 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfc41e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d20600 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:84ff4800 r7:00000000 r6:83018600 r5:00001000 r4:7f057000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfab9000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d9a38c r4:85b52c80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d9a38c r4:85b52c80 [<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 r9:84ff4800 r8:85b52cac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85b52c80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b52c80 r8:802762fc r7:dfb9de60 r6:85b52880 r5:84ff4800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfc41fb0 to 0xdfc41ff8) 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 r4:85b54b40 INFO: task kworker/1:21:4135 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: aab05000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/1:198:4956 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:198 state:D stack:0 pid:4956 tgid:4956 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa35d84 r9:829174a8 r8:60000113 r7:829174a8 r6:eaa35d8c r5:852de000 r4:852de000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:852de000 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa35e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d20b80 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:852de000 r7:00000000 r6:83018600 r5:00001000 r4:7f059000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:dfba3000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d9b78c r4:85d02d80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d9b78c r4:85d02d80 [<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 r9:852de000 r8:85d02dac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d02d80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d02d80 r8:802762fc r7:ea9c9e60 r6:85d02e80 r5:852de000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa35fb0 to 0xeaa35ff8) 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 r4:85d06900 INFO: task kworker/1:198:4956 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: aade8000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/1:199:4957 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:4957 tgid:4957 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa7dd84 r9:829174a8 r8:60000013 r7:829174a8 r6:eaa7dd8c r5:852dec00 r4:852dec00 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:852dec00 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa7de08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d20780 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:852dec00 r7:00000000 r6:83018600 r5:00001000 r4:7f05f000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea71b000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d9a78c r4:85d02f80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d9a78c r4:85d02f80 [<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 r9:852dec00 r8:85d02fac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d02f80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d02f80 r8:802762fc r7:ea9c9e60 r6:85d02380 r5:852dec00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa7dfb0 to 0xeaa7dff8) 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 r4:85d06900 INFO: task kworker/1:199:4957 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: aade8000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/1:200:4971 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:4971 tgid:4971 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab51d84 r9:829174a8 r8:600f0113 r7:829174a8 r6:eab51d8c r5:85ce0000 r4:85ce0000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85ce0000 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab51e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d203c0 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85ce0000 r7:00000000 r6:83018600 r5:00001000 r4:7f067000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea953000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d99f8c r4:85d19100 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85d99f8c r4:85d19100 [<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 r9:85ce0000 r8:85d1912c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d19100 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d19100 r8:802762fc r7:eaa35e60 r6:85d19180 r5:85ce0000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab51fb0 to 0xeab51ff8) 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 r4:85d03740 INFO: task kworker/1:200:4971 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: ab2ee000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/0:240:4979 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:240 state:D stack:0 pid:4979 tgid:4979 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab6dd84 r9:829174a8 r8:60000013 r7:829174a8 r6:eab6dd8c r5:85d64800 r4:85d64800 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85d64800 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab6de08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d03740 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d64800 r7:00000000 r6:83018400 r5:00001000 r4:7f04f000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e4327000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d4078c r4:85d1f080 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d4078c r4:85d1f080 [<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 r9:85d64800 r8:85d1f0ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1f080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1f080 r8:802762fc r7:eab69e60 r6:85d1f100 r5:85d64800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab6dfb0 to 0xeab6dff8) 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 r4:85d083c0 INFO: task kworker/0:240:4979 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: ab2ee000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/0:241:4981 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:241 state:D stack:0 pid:4981 tgid:4981 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab75d84 r9:829174a8 r8:60000013 r7:829174a8 r6:eab75d8c r5:85ce1800 r4:85ce1800 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85ce1800 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab75e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d1b040 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85ce1800 r7:00000000 r6:83018400 r5:00001000 r4:7f053000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea5eb000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d42f8c r4:85d1f200 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d42f8c r4:85d1f200 [<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 r9:85ce1800 r8:85d1f22c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1f200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1f200 r8:802762fc r7:eab69e60 r6:85d19380 r5:85ce1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab75fb0 to 0xeab75ff8) 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 r4:85d0e440 INFO: task kworker/0:241:4981 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: ab58a000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/0:242:4983 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:242 state:D stack:0 pid:4983 tgid:4983 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab71d84 r9:829174a8 r8:60000013 r7:829174a8 r6:eab71d8c r5:85ce2400 r4:85ce2400 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85ce2400 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab71e08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d1b300 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85ce2400 r7:00000000 r6:83018400 r5:00001000 r4:7f055000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea6ed000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d4378c r4:85d1f280 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d4378c r4:85d1f280 [<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 r9:85ce2400 r8:85d1f2ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1f280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1f280 r8:802762fc r7:eab75e60 r6:85d19480 r5:85ce2400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab71fb0 to 0xeab71ff8) 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 r4:85d0e140 INFO: task kworker/0:242:4983 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: ab58a000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/0:243:4986 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:243 state:D stack:0 pid:4986 tgid:4986 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab7dd84 r9:829174a8 r8:60000013 r7:829174a8 r6:eab7dd8c r5:85ce3c00 r4:85ce3c00 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85ce3c00 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab7de08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d1b880 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85ce3c00 r7:00000000 r6:83018400 r5:00001000 r4:7f065000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea821000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d37f8c r4:85d1f380 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d37f8c r4:85d1f380 [<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 r9:85ce3c00 r8:85d1f3ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1f380 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1f380 r8:802762fc r7:eab69e60 r6:85d19600 r5:85ce3c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab7dfb0 to 0xeab7dff8) 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 r4:85d1b400 INFO: task kworker/0:243:4986 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: ab7d3000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 INFO: task kworker/0:244:4987 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:244 state:D stack:0 pid:4987 tgid:4987 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab8dd84 r9:829174a8 r8:60000113 r7:829174a8 r6:eab8dd8c r5:85ce4800 r4:85ce4800 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85ce4800 r4:829174a4 [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab8de08 r4:00000000 [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d1bd80 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85ce4800 r7:00000000 r6:83018400 r5:00001000 r4:7f069000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:eaa0b000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85aaa78c r4:85d1f480 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85aaa78c r4:85d1f480 [<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 r9:85ce4800 r8:85d1f4ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1f480 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1f480 r8:802762fc r7:eab7de60 r6:85d19700 r5:85ce4800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab8dfb0 to 0xeab8dff8) 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 r4:85d1b3c0 INFO: task kworker/0:244:4987 is blocked on a mutex likely owned by task kworker/0:237:4974. task:kworker/0:237 state:R running task stack:0 pid:4974 tgid:4974 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280c9f8 r9:85d63000 r8:80200c04 r7:eab65d54 r6:ffffffff r5:85d63000 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeab65d20 to 0xeab65d68) 5d20: abacd000 eab5f000 00000001 80239018 7f049000 00000001 82ace204 82acd5e0 5d40: 7f049000 eab5f000 8280c9f8 eab65d9c eab65da0 eab65d70 8022fe10 80239030 5d60: 80000113 ffffffff r5:80000113 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eab65dc0 r5:eab65e08 r4:eab65dc0 [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d06480 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85d63000 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e00b7000 [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_binary_free kernel/bpf/core.c:1098 [inline]) [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1221) [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2919) r5:85d40f8c r4:85d1ec00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d40f8c r4:85d1ec00 [<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 r9:85d63000 r8:85d1ec2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d1ec00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d1ec00 r8:802762fc r7:eab2de60 r6:85d1ec80 r5:85d63000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab65fb0 to 0xeab65ff8) 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 r4:85d21200 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000113 r5:60000193 r4:8229579c [<80201b58>] (show_stack) from [<8021edec>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b58>] (show_stack) from [<8021edec>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021ed7c>] (dump_stack_lvl) from [<8021ee10>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<8021edf8>] (dump_stack) from [<81a9b500>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9b3a0>] (nmi_cpu_backtrace) from [<81a9b64c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8280c6d0 r5:8281af1c r4:ffffffff [<81a9b51c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007b93 r8:8280c850 r7:0002241a r6:00007b93 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa315c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa315c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa315c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa30f4>] (sys_info) from [<80383788>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa30f4>] (sys_info) from [<80383788>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:861ca90c [<80383324>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:80383324 r7:832d4180 r6:832d4180 r5:832e2400 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 r4:838c6500 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 2819 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 : [<81abc670>] lr : [<80aa3828>] psr: 60000113 sp : eb195eb0 ip : eb195ec0 fp : eb195ebc r10: 82959bc4 r9 : 00000001 r8 : 00000000 r7 : 00000117 r6 : 82959b28 r5 : 00000000 r4 : 00000001 r3 : 00000767 r2 : 00000000 r1 : 60000113 r0 : 84676840 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 8585d7c0 DAC: 00000000 Call trace: [<81abc648>] (_raw_spin_unlock_irqrestore) from [<80aa3828>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abc648>] (_raw_spin_unlock_irqrestore) from [<80aa3828>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abc648>] (_raw_spin_unlock_irqrestore) from [<80aa3828>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa3808>] (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 r5:82959b28 r4:8443c800 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b28 r8:802e5798 r7:84f56d80 r6:84f56d80 r5:8443c800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb195fb0 to 0xeb195ff8) 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 r4:85011840