Extracting prog: 6m31.375887152s Minimizing prog: 1h18m32.346613281s Simplifying prog options: 0s Extracting C: 9m23.089485336s Simplifying C: 1h0m38.128514269s 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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000008000000000000004b84ffec850000006d000000850000002a00000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000440)={&(0x7f00000003c0)='kfree\x00', r0}, 0x10) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 16m0s testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000008000000000000004b84ffec850000006d000000850000002a00000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000440)={&(0x7f00000003c0)='kfree\x00', r0}, 0x10) program crashed: lost connection to test machine single: successfully extracted reproducer found reproducer with 2 syscalls minimizing guilty program testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000008000000000000004b84ffec850000006d000000850000002a00000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) 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, &(0x7f0000000180)={0x18, 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, &(0x7f0000000180)={0x18, 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, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000008000000000000004b84ffec850000006d000000850000002a00000095"], 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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000008000000000000004b84ffec850000006d000000850000002a00000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000008000000000000004b84ffec850000006d000000850000002a00000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000008000000000000004b84ffec850000006d000000850000002a00000095"], &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true reproducing took 3h18m50.223728152s repro crashed as (corrupted=false): INFO: task kworker/0:19:4139 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:19 state:D stack:0 pid:4139 tgid:4139 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:dfa7dd84 r9:829174a8 r8:60000113 r7:829174a8 r6:dfa7dd8c r5:85aee000 r4:85aee000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85aee000 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:dfa7de08 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 r5:85d7ca40 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85aee000 r7:00000000 r6:83018400 r5:00001000 r4:7f059000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea63f000 [<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) r5:85daaf8c r4:84d88680 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daaf8c r4:84d88680 [<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 r9:85aee000 r8:84d886ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:84d88680 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84d88680 r8:802762fc r7:ea505e60 r6:84dbc600 r5:85aee000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa7dfb0 to 0xdfa7dff8) 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 r4:84d8a240 INFO: task kworker/0:19:4139 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 83477000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/1:25:4148 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:25 state:D stack:0 pid:4148 tgid:4148 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:dfb45d84 r9:829174a8 r8:60000113 r7:829174a8 r6:dfb45d8c r5:85aeb000 r4:85aeb000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85aeb000 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:dfb45e08 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 r5:85d7d580 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aeb000 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea91f000 [<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) r5:85de9f8c r4:84dbc280 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de9f8c r4:84dbc280 [<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 r9:85aeb000 r8:84dbc2ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:84dbc280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84dbc280 r8:802762fc r7:df9e5e60 r6:84dbc880 r5:85aeb000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb45fb0 to 0xdfb45ff8) 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 r4:84dba300 INFO: task kworker/1:25:4148 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 83e80000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/0:22:4156 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:22 state:D stack:0 pid:4156 tgid:4156 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:dfb91d84 r9:829174a8 r8:60000013 r7:829174a8 r6:dfb91d8c r5:843eb000 r4:843eb000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:843eb000 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:dfb91e08 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 r5:84d8a580 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:843eb000 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df9f3000 [<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) r5:85da938c r4:84d88900 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85da938c r4:84d88900 [<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 r9:843eb000 r8:84d8892c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:84d88900 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84d88900 r8:802762fc r7:dfab1e60 r6:84d88c80 r5:843eb000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb91fb0 to 0xdfb91ff8) 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 r4:84d8a6c0 INFO: task kworker/0:22:4156 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84166000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/0:299:5107 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:299 state:D stack:0 pid:5107 tgid:5107 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:eabfdd84 r9:829174a8 r8:60000113 r7:829174a8 r6:eabfdd8c r5:8592ec00 r4:8592ec00 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:8592ec00 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:eabfde08 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 r5:85d7f240 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8592ec00 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea8f7000 [<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) r5:85de0b8c r4:85e0c680 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85de0b8c r4:85e0c680 [<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 r9:8592ec00 r8:85e0c6ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85e0c680 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e0c680 r8:802762fc r7:eacede60 r6:85e0c700 r5:8592ec00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeabfdfb0 to 0xeabfdff8) 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 r4:85e0d840 INFO: task kworker/0:299:5107 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84339000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/0:300:5110 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:300 state:D stack:0 pid:5110 tgid:5110 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:eac25d84 r9:829174a8 r8:60000113 r7:829174a8 r6:eac25d8c r5:85928000 r4:85928000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85928000 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:eac25e08 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 r5:85e06d00 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85928000 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:ea595000 [<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) r5:85de078c r4:85e0c880 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85de078c r4:85e0c880 [<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 r9:85928000 r8:85e0c8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85e0c880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e0c880 r8:802762fc r7:eabfde60 r6:85e0c900 r5:85928000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac25fb0 to 0xeac25ff8) 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 r4:85e0d400 INFO: task kworker/0:300:5110 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84339000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/0:302:5129 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:302 state:D stack:0 pid:5129 tgid:5129 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:eac55d84 r9:829174a8 r8:60000113 r7:829174a8 r6:eac55d8c r5:85bd8000 r4:85bd8000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85bd8000 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:eac55e08 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 r5:85e06ec0 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85bd8000 r7:00000000 r6:83018400 r5:00001000 r4:7f067000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:eaca5000 [<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) r5:85da8f8c r4:85e0ce00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85da8f8c r4:85e0ce00 [<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 r9:85bd8000 r8:85e0ce2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85e0ce00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e0ce00 r8:802762fc r7:eabfde60 r6:85e0cf80 r5:85bd8000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac55fb0 to 0xeac55ff8) 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 r4:85e0d000 INFO: task kworker/0:302:5129 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 845c6000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/1:212:5135 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:212 state:D stack:0 pid:5135 tgid:5135 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:eac79d84 r9:829174a8 r8:60000113 r7:829174a8 r6:eac79d8c r5:85bdb000 r4:85bdb000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85bdb000 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:eac79e08 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 r5:85d72780 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdb000 r7:00000000 r6:83018600 r5:00001000 r4:7f069000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ead19000 [<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) r5:84d4fb8c r4:85e02a00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:84d4fb8c r4:85e02a00 [<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 r9:85bdb000 r8:85e02a2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02a00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02a00 r8:802762fc r7:eabb5e60 r6:85d82180 r5:85bdb000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac79fb0 to 0xeac79ff8) 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 r4:85d7f000 INFO: task kworker/1:212:5135 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 848c1000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/1:213:5137 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:213 state:D stack:0 pid:5137 tgid:5137 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:eac91d84 r9:829174a8 r8:60000113 r7:829174a8 r6:eac91d8c r5:85bdbc00 r4:85bdbc00 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85bdbc00 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:eac91e08 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 r5:85d7a900 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdbc00 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:eac0b000 [<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) r5:85de138c r4:85e02d80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de138c r4:85e02d80 [<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 r9:85bdbc00 r8:85e02dac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02d80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02d80 r8:802762fc r7:eac79e60 r6:85d82280 r5:85bdbc00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac91fb0 to 0xeac91ff8) 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 r4:85d7f180 INFO: task kworker/1:213:5137 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84946000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/1:215:5141 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:215 state:D stack:0 pid:5141 tgid:5141 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:eac9dd84 r9:829174a8 r8:60000113 r7:829174a8 r6:eac9dd8c r5:85bde000 r4:85bde000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85bde000 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:eac9de08 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 r5:85d7fd00 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bde000 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:ea98b000 [<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) r5:85de0f8c r4:85e02f00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de0f8c r4:85e02f00 [<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 r9:85bde000 r8:85e02f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02f00 r8:802762fc r7:eac91e60 r6:85d82580 r5:85bde000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac9dfb0 to 0xeac9dff8) 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 r4:85d7fb40 INFO: task kworker/1:215:5141 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84bfb000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/1:216:5145 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:216 state:D stack:0 pid:5145 tgid:5145 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:eac99d84 r9:829174a8 r8:60000013 r7:829174a8 r6:eac99d8c r5:85942400 r4:85942400 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85942400 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:eac99e08 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 r5:85d72980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85942400 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:e03bd000 [<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) r5:85de278c r4:85e02b00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de278c r4:85e02b00 [<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 r9:85942400 r8:85e02b2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02b00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02b00 r8:802762fc r7:eac79e60 r6:85e02c00 r5:85942400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac99fb0 to 0xeac99ff8) 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 r4:85d7fcc0 INFO: task kworker/1:216:5145 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84f79000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:000f0113 r5:600f0193 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) r5:00000001 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) r7:00000001 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) r9:00007be1 r8:8280c850 r7:00022dab r6:00007be1 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 r4:8606080c [<80383324>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:80383324 r7:8335af80 r6:8335af80 r5:8321d400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:832c0e40 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2820 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194 LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline] LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603 pc : [<81abc670>] lr : [<80aa3828>] psr: 60000113 sp : eb2e1eb0 ip : eb2e1ec0 fp : eb2e1ebc r10: 82959bc4 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 82959b28 r5 : 00000000 r4 : 00000001 r3 : 000008cd r2 : 00000000 r1 : 60000113 r0 : 843a3440 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84db0800 DAC: fffffffd 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 r4:845fa400 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b28 r8:802e5798 r7:84a7dc00 r6:84a7dc00 r5:845fa400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb2e1fb0 to 0xeb2e1ff8) 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 r4:84fd8c80 final repro crashed as (corrupted=false): INFO: task kworker/0:19:4139 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:19 state:D stack:0 pid:4139 tgid:4139 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:dfa7dd84 r9:829174a8 r8:60000113 r7:829174a8 r6:dfa7dd8c r5:85aee000 r4:85aee000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85aee000 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:dfa7de08 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 r5:85d7ca40 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85aee000 r7:00000000 r6:83018400 r5:00001000 r4:7f059000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea63f000 [<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) r5:85daaf8c r4:84d88680 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85daaf8c r4:84d88680 [<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 r9:85aee000 r8:84d886ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:84d88680 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84d88680 r8:802762fc r7:ea505e60 r6:84dbc600 r5:85aee000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfa7dfb0 to 0xdfa7dff8) 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 r4:84d8a240 INFO: task kworker/0:19:4139 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 83477000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/1:25:4148 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:25 state:D stack:0 pid:4148 tgid:4148 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:dfb45d84 r9:829174a8 r8:60000113 r7:829174a8 r6:dfb45d8c r5:85aeb000 r4:85aeb000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85aeb000 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:dfb45e08 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 r5:85d7d580 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aeb000 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea91f000 [<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) r5:85de9f8c r4:84dbc280 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de9f8c r4:84dbc280 [<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 r9:85aeb000 r8:84dbc2ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:84dbc280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84dbc280 r8:802762fc r7:df9e5e60 r6:84dbc880 r5:85aeb000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb45fb0 to 0xdfb45ff8) 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 r4:84dba300 INFO: task kworker/1:25:4148 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 83e80000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/0:22:4156 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:22 state:D stack:0 pid:4156 tgid:4156 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:dfb91d84 r9:829174a8 r8:60000013 r7:829174a8 r6:dfb91d8c r5:843eb000 r4:843eb000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:843eb000 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:dfb91e08 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 r5:84d8a580 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:843eb000 r7:00000000 r6:83018400 r5:00001000 r4:7f045000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:df9f3000 [<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) r5:85da938c r4:84d88900 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85da938c r4:84d88900 [<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 r9:843eb000 r8:84d8892c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:84d88900 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:84d88900 r8:802762fc r7:dfab1e60 r6:84d88c80 r5:843eb000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfb91fb0 to 0xdfb91ff8) 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 r4:84d8a6c0 INFO: task kworker/0:22:4156 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84166000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/0:299:5107 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:299 state:D stack:0 pid:5107 tgid:5107 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:eabfdd84 r9:829174a8 r8:60000113 r7:829174a8 r6:eabfdd8c r5:8592ec00 r4:8592ec00 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:8592ec00 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:eabfde08 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 r5:85d7f240 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:8592ec00 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ea8f7000 [<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) r5:85de0b8c r4:85e0c680 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85de0b8c r4:85e0c680 [<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 r9:8592ec00 r8:85e0c6ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85e0c680 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e0c680 r8:802762fc r7:eacede60 r6:85e0c700 r5:8592ec00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeabfdfb0 to 0xeabfdff8) 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 r4:85e0d840 INFO: task kworker/0:299:5107 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84339000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/0:300:5110 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:300 state:D stack:0 pid:5110 tgid:5110 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:eac25d84 r9:829174a8 r8:60000113 r7:829174a8 r6:eac25d8c r5:85928000 r4:85928000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85928000 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:eac25e08 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 r5:85e06d00 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85928000 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:ea595000 [<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) r5:85de078c r4:85e0c880 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85de078c r4:85e0c880 [<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 r9:85928000 r8:85e0c8ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85e0c880 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e0c880 r8:802762fc r7:eabfde60 r6:85e0c900 r5:85928000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac25fb0 to 0xeac25ff8) 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 r4:85e0d400 INFO: task kworker/0:300:5110 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84339000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/0:302:5129 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:302 state:D stack:0 pid:5129 tgid:5129 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:eac55d84 r9:829174a8 r8:60000113 r7:829174a8 r6:eac55d8c r5:85bd8000 r4:85bd8000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85bd8000 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:eac55e08 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 r5:85e06ec0 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85bd8000 r7:00000000 r6:83018400 r5:00001000 r4:7f067000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:eaca5000 [<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) r5:85da8f8c r4:85e0ce00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85da8f8c r4:85e0ce00 [<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 r9:85bd8000 r8:85e0ce2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85e0ce00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e0ce00 r8:802762fc r7:eabfde60 r6:85e0cf80 r5:85bd8000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac55fb0 to 0xeac55ff8) 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 r4:85e0d000 INFO: task kworker/0:302:5129 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 845c6000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/1:212:5135 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:212 state:D stack:0 pid:5135 tgid:5135 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:eac79d84 r9:829174a8 r8:60000113 r7:829174a8 r6:eac79d8c r5:85bdb000 r4:85bdb000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85bdb000 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:eac79e08 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 r5:85d72780 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdb000 r7:00000000 r6:83018600 r5:00001000 r4:7f069000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:ead19000 [<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) r5:84d4fb8c r4:85e02a00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:84d4fb8c r4:85e02a00 [<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 r9:85bdb000 r8:85e02a2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02a00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02a00 r8:802762fc r7:eabb5e60 r6:85d82180 r5:85bdb000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac79fb0 to 0xeac79ff8) 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 r4:85d7f000 INFO: task kworker/1:212:5135 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 848c1000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/1:213:5137 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:213 state:D stack:0 pid:5137 tgid:5137 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:eac91d84 r9:829174a8 r8:60000113 r7:829174a8 r6:eac91d8c r5:85bdbc00 r4:85bdbc00 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85bdbc00 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:eac91e08 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 r5:85d7a900 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdbc00 r7:00000000 r6:83018600 r5:00001000 r4:7f061000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:eac0b000 [<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) r5:85de138c r4:85e02d80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de138c r4:85e02d80 [<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 r9:85bdbc00 r8:85e02dac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02d80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02d80 r8:802762fc r7:eac79e60 r6:85d82280 r5:85bdbc00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac91fb0 to 0xeac91ff8) 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 r4:85d7f180 INFO: task kworker/1:213:5137 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84946000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/1:215:5141 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:215 state:D stack:0 pid:5141 tgid:5141 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:eac9dd84 r9:829174a8 r8:60000113 r7:829174a8 r6:eac9dd8c r5:85bde000 r4:85bde000 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85bde000 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:eac9de08 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 r5:85d7fd00 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bde000 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:ea98b000 [<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) r5:85de0f8c r4:85e02f00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de0f8c r4:85e02f00 [<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 r9:85bde000 r8:85e02f2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02f00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02f00 r8:802762fc r7:eac91e60 r6:85d82580 r5:85bde000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac9dfb0 to 0xeac9dff8) 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 r4:85d7fb40 INFO: task kworker/1:215:5141 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84bfb000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 INFO: task kworker/1:216:5145 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:216 state:D stack:0 pid:5145 tgid:5145 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:eac99d84 r9:829174a8 r8:60000013 r7:829174a8 r6:eac99d8c r5:85942400 r4:85942400 [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85942400 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:eac99e08 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 r5:85d72980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85942400 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:e03bd000 [<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) r5:85de278c r4:85e02b00 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de278c r4:85e02b00 [<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 r9:85942400 r8:85e02b2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02b00 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02b00 r8:802762fc r7:eac79e60 r6:85e02c00 r5:85942400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac99fb0 to 0xeac99ff8) 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 r4:85d7fcc0 INFO: task kworker/1:216:5145 is blocked on a mutex likely owned by task kworker/1:214:5139. task:kworker/1:214 state:R running task stack:0 pid:5139 tgid:5139 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 r9:85bdc800 r8:80200c04 r7:eac95d54 r6:ffffffff r5:85bdc800 r4:00000000 [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeac95d20 to 0xeac95d68) 5d20: 84f79000 ebbed000 00000001 80239018 7f04d000 00000001 82ace204 82acd5e0 5d40: 7f04d000 ebbed000 8280c9f8 eac95d9c eac95da0 eac95d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 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:eac95dc0 r5:eac95e08 r4:eac95dc0 [<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 r5:85d7f980 r4:00000000 [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85bdc800 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1052) r5:00001000 r4:e84a7000 [<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) r5:85de2b8c r4:85e02e80 [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85de2b8c r4:85e02e80 [<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 r9:85bdc800 r8:85e02eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85e02e80 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85e02e80 r8:802762fc r7:eac79e60 r6:85d82380 r5:85bdc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeac95fb0 to 0xeac95ff8) 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 r4:85d7f240 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:000f0113 r5:600f0193 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) r5:00000001 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) r7:00000001 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) r9:00007be1 r8:8280c850 r7:00022dab r6:00007be1 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 r4:8606080c [<80383324>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:80383324 r7:8335af80 r6:8335af80 r5:8321d400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:832c0e40 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2820 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194 LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline] LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603 pc : [<81abc670>] lr : [<80aa3828>] psr: 60000113 sp : eb2e1eb0 ip : eb2e1ec0 fp : eb2e1ebc r10: 82959bc4 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 82959b28 r5 : 00000000 r4 : 00000001 r3 : 000008cd r2 : 00000000 r1 : 60000113 r0 : 843a3440 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84db0800 DAC: fffffffd 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 r4:845fa400 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b28 r8:802e5798 r7:84a7dc00 r6:84a7dc00 r5:845fa400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb2e1fb0 to 0xeb2e1ff8) 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 r4:84fd8c80