Extracting prog: 7m20.002229988s Minimizing prog: 1h18m1.593914214s Simplifying prog options: 0s Extracting C: 10m10.592782676s Simplifying C: 1h0m46.709765636s 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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000004c0)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x4, '\x00', 0x0, 0x2}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000880)={&(0x7f0000000a80)='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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000004c0)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x4, '\x00', 0x0, 0x2}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000880)={&(0x7f0000000a80)='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, &(0x7f00000004c0)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x4, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000004c0)={0x18, 0x5, 0x0, &(0x7f0000000040)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x4, '\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, &(0x7f00000004c0)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB], &(0x7f0000000040)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x4, '\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, &(0x7f00000004c0)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, '\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$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000004c0)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x4, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000004c0)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x4, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000004c0)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x4, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true reproducing took 3h19m18.541354789s repro crashed as (corrupted=false): INFO: task kworker/1:14:4119 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:14 state:D stack:0 pid:4119 tgid:4119 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfbfdd84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfbfdd8c r5:84639800 r4:84639800 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:84639800 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbfde08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85007dc0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:84639800 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea621000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8503c794 r4:85b4c500 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8503c794 r4:85b4c500 [<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 r9:84639800 r8:85b4c52c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85b4c500 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b4c500 r8:802762fc r7:dfc71e60 r6:85b4c400 r5:84639800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbfdfb0 to 0xdfbfdff8) 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 r4:85007b80 INFO: task kworker/1:14:4119 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8028e070>] (preempt_count_sub) from [<81ab3508>] (preempt_schedule_irq+0x4c/0xa8 kernel/sched/core.c:7192) [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a21bd000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/1:16:4122 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:16 state:D stack:0 pid:4122 tgid:4122 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfcb9d84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfcb9d8c r5:833a6c00 r4:833a6c00 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:833a6c00 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfcb9e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85945680 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:833a6c00 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01bb000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599ab94 r4:8500e180 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599ab94 r4:8500e180 [<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 r9:833a6c00 r8:8500e1ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8500e180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8500e180 r8:802762fc r7:dfc71e60 r6:8500e200 r5:833a6c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcb9fb0 to 0xdfcb9ff8) 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 r4:850076c0 INFO: task kworker/1:16:4122 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a2bc8000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/1:18:4129 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:18 state:D stack:0 pid:4129 tgid:4129 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfd21d84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfd21d8c r5:83f35400 r4:83f35400 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83f35400 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfd21e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d24840 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83f35400 r7:00000000 r6:83018600 r5:00001000 r4:7f069000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eab4b000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:859a1394 r4:8500e580 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:859a1394 r4:8500e580 [<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 r9:83f35400 r8:8500e5ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8500e580 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8500e580 r8:802762fc r7:dfb25e60 r6:8500e600 r5:83f35400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfd21fb0 to 0xdfd21ff8) 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 r4:85006140 INFO: task kworker/1:18:4129 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a2f9b000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/1:206:4885 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:206 state:D stack:0 pid:4885 tgid:4885 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa09d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa09d8c r5:859c2400 r4:859c2400 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:859c2400 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa09e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85942e80 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859c2400 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e8459000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599b394 r4:85951700 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599b394 r4:85951700 [<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 r9:859c2400 r8:8595172c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85951700 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85951700 r8:802762fc r7:ea94de60 r6:858f5880 r5:859c2400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa09fb0 to 0xeaa09ff8) 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 r4:85947780 INFO: task kworker/1:206:4885 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a35db000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/0:211:4934 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:211 state:D stack:0 pid:4934 tgid:4934 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa45d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa45d8c r5:852b4800 r4:852b4800 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:852b4800 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa45e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8d80 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:852b4800 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea76d000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:859a0f94 r4:85d27080 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859a0f94 r4:85d27080 [<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 r9:852b4800 r8:85d270ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d27080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d27080 r8:802762fc r7:eaa29e60 r6:85d27100 r5:852b4800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa45fb0 to 0xeaa45ff8) 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 r4:85d25900 INFO: task kworker/0:211:4934 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a372d000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/0:212:4937 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:212 state:D stack:0 pid:4937 tgid:4937 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab19d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eab19d8c r5:859da400 r4:859da400 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:859da400 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab19e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85947100 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:859da400 r7:00000000 r6:83018400 r5:00001000 r4:7f049000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfcc7000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:859a0b94 r4:85d27200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859a0b94 r4:85d27200 [<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 r9:859da400 r8:85d2722c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d27200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d27200 r8:802762fc r7:eaa45e60 r6:85d20480 r5:859da400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab19fb0 to 0xeab19ff8) 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 r4:85d25ec0 INFO: task kworker/0:212:4937 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a3a8d000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/0:213:4940 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:213 state:D stack:0 pid:4940 tgid:4940 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa4dd84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa4dd8c r5:859dc800 r4:859dc800 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:859dc800 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa4de08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d26640 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:859dc800 r7:00000000 r6:83018400 r5:00001000 r4:7f067000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eaabb000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:859f0394 r4:85d27300 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f0394 r4:85d27300 [<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 r9:859dc800 r8:85d2732c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d27300 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d27300 r8:802762fc r7:eaa45e60 r6:85d20680 r5:859dc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa4dfb0 to 0xeaa4dff8) 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 r4:85947140 INFO: task kworker/0:213:4940 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a3db1000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/1:209:4942 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:209 state:D stack:0 pid:4942 tgid:4942 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaaf1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaaf1d8c r5:859dd400 r4:859dd400 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:859dd400 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaaf1e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8594f8c0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859dd400 r7:00000000 r6:83018600 r5:00001000 r4:7f053000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8c1000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8503cf94 r4:85d20780 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8503cf94 r4:85d20780 [<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 r9:859dd400 r8:85d207ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20780 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20780 r8:802762fc r7:dfbfde60 r6:85d20800 r5:859dd400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaaf1fb0 to 0xeaaf1ff8) 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 r4:85945140 INFO: task kworker/1:209:4942 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a4023000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/0:214:4944 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:214 state:D stack:0 pid:4944 tgid:4944 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab11d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eab11d8c r5:859de000 r4:859de000 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:859de000 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab11e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d26300 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:859de000 r7:00000000 r6:83018400 r5:00001000 r4:7f055000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eaa69000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:859f1f94 r4:85d27400 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f1f94 r4:85d27400 [<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 r9:859de000 r8:85d2742c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d27400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d27400 r8:802762fc r7:eaa45e60 r6:85d20900 r5:859de000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab11fb0 to 0xeab11ff8) 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 r4:85d25dc0 INFO: task kworker/0:214:4944 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a4143000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/0:215:4951 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:215 state:D stack:0 pid:4951 tgid:4951 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa55d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa55d8c r5:852b1800 r4:852b1800 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:852b1800 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa55e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d260c0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:852b1800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e0313000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85d9a394 r4:85d27380 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d9a394 r4:85d27380 [<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 r9:852b1800 r8:85d273ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d27380 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d27380 r8:802762fc r7:eaa4de60 r6:85d27480 r5:852b1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa55fb0 to 0xeaa55ff8) 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 r4:85d261c0 INFO: task kworker/0:215:4951 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a42fe000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 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 r6:00000013 r5:60000093 r4:8229592c [<80201b58>] (show_stack) from [<8021ee34>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b58>] (show_stack) from [<8021ee34>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021edc4>] (dump_stack_lvl) from [<8021ee58>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000001 r4:00000001 [<8021ee40>] (dump_stack) from [<81a9b900>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9b7a0>] (nmi_cpu_backtrace) from [<81a9ba4c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8280c710 r5:8281af5c r4:ffffffff [<81a9b91c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007bc4 r8:8280c890 r7:00022ef4 r6:00007bc4 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa355c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa355c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa355c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa34f4>] (sys_info) from [<80383748>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa34f4>] (sys_info) from [<80383748>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:860b9d0c [<803832e4>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:803832e4 r7:830d6980 r6:830d6980 r5:8321c800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:833ce740 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2818 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 : [<81abca70>] lr : [<80aa3928>] psr: 600f0113 sp : eb0d5eb0 ip : eb0d5ec0 fp : eb0d5ebc r10: 82959c04 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 000008cd r2 : 00000000 r1 : 600f0113 r0 : 84422c40 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84f67b00 DAC: fffffffd Call trace: [<81abca48>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abca48>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abca48>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa3908>] (pl011_console_device_unlock) from [<802e5720>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149) [<802e5698>] (nbcon_emit_one) from [<802e59a0>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255) r6:82abf0fc r5:82959b68 r4:8465c800 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5798 r7:84c44180 r6:84c44180 r5:8465c800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb0d5fb0 to 0xeb0d5ff8) 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 r4:84caae00 final repro crashed as (corrupted=false): INFO: task kworker/1:14:4119 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:14 state:D stack:0 pid:4119 tgid:4119 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfbfdd84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfbfdd8c r5:84639800 r4:84639800 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:84639800 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfbfde08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85007dc0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:84639800 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea621000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8503c794 r4:85b4c500 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8503c794 r4:85b4c500 [<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 r9:84639800 r8:85b4c52c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85b4c500 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85b4c500 r8:802762fc r7:dfc71e60 r6:85b4c400 r5:84639800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfbfdfb0 to 0xdfbfdff8) 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 r4:85007b80 INFO: task kworker/1:14:4119 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8028e070>] (preempt_count_sub) from [<81ab3508>] (preempt_schedule_irq+0x4c/0xa8 kernel/sched/core.c:7192) [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a21bd000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/1:16:4122 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:16 state:D stack:0 pid:4122 tgid:4122 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfcb9d84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfcb9d8c r5:833a6c00 r4:833a6c00 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:833a6c00 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfcb9e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85945680 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:833a6c00 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01bb000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599ab94 r4:8500e180 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599ab94 r4:8500e180 [<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 r9:833a6c00 r8:8500e1ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8500e180 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8500e180 r8:802762fc r7:dfc71e60 r6:8500e200 r5:833a6c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfcb9fb0 to 0xdfcb9ff8) 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 r4:850076c0 INFO: task kworker/1:16:4122 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a2bc8000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/1:18:4129 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:18 state:D stack:0 pid:4129 tgid:4129 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfd21d84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfd21d8c r5:83f35400 r4:83f35400 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83f35400 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfd21e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d24840 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83f35400 r7:00000000 r6:83018600 r5:00001000 r4:7f069000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eab4b000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:859a1394 r4:8500e580 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:859a1394 r4:8500e580 [<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 r9:83f35400 r8:8500e5ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:8500e580 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:8500e580 r8:802762fc r7:dfb25e60 r6:8500e600 r5:83f35400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfd21fb0 to 0xdfd21ff8) 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 r4:85006140 INFO: task kworker/1:18:4129 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a2f9b000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/1:206:4885 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:206 state:D stack:0 pid:4885 tgid:4885 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa09d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa09d8c r5:859c2400 r4:859c2400 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:859c2400 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa09e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85942e80 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859c2400 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e8459000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599b394 r4:85951700 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599b394 r4:85951700 [<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 r9:859c2400 r8:8595172c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85951700 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85951700 r8:802762fc r7:ea94de60 r6:858f5880 r5:859c2400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa09fb0 to 0xeaa09ff8) 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 r4:85947780 INFO: task kworker/1:206:4885 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a35db000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/0:211:4934 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:211 state:D stack:0 pid:4934 tgid:4934 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa45d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa45d8c r5:852b4800 r4:852b4800 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:852b4800 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa45e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8d80 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:852b4800 r7:00000000 r6:83018400 r5:00001000 r4:7f051000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea76d000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:859a0f94 r4:85d27080 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859a0f94 r4:85d27080 [<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 r9:852b4800 r8:85d270ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d27080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d27080 r8:802762fc r7:eaa29e60 r6:85d27100 r5:852b4800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa45fb0 to 0xeaa45ff8) 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 r4:85d25900 INFO: task kworker/0:211:4934 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a372d000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/0:212:4937 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:212 state:D stack:0 pid:4937 tgid:4937 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab19d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eab19d8c r5:859da400 r4:859da400 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:859da400 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab19e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85947100 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:859da400 r7:00000000 r6:83018400 r5:00001000 r4:7f049000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfcc7000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:859a0b94 r4:85d27200 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859a0b94 r4:85d27200 [<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 r9:859da400 r8:85d2722c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d27200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d27200 r8:802762fc r7:eaa45e60 r6:85d20480 r5:859da400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab19fb0 to 0xeab19ff8) 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 r4:85d25ec0 INFO: task kworker/0:212:4937 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a3a8d000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/0:213:4940 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:213 state:D stack:0 pid:4940 tgid:4940 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa4dd84 r9:829174e8 r8:60000013 r7:829174e8 r6:eaa4dd8c r5:859dc800 r4:859dc800 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:859dc800 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa4de08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d26640 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:859dc800 r7:00000000 r6:83018400 r5:00001000 r4:7f067000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eaabb000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:859f0394 r4:85d27300 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f0394 r4:85d27300 [<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 r9:859dc800 r8:85d2732c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d27300 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d27300 r8:802762fc r7:eaa45e60 r6:85d20680 r5:859dc800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa4dfb0 to 0xeaa4dff8) 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 r4:85947140 INFO: task kworker/0:213:4940 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a3db1000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/1:209:4942 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:209 state:D stack:0 pid:4942 tgid:4942 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaaf1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaaf1d8c r5:859dd400 r4:859dd400 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:859dd400 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaaf1e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8594f8c0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859dd400 r7:00000000 r6:83018600 r5:00001000 r4:7f053000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8c1000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8503cf94 r4:85d20780 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8503cf94 r4:85d20780 [<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 r9:859dd400 r8:85d207ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20780 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20780 r8:802762fc r7:dfbfde60 r6:85d20800 r5:859dd400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaaf1fb0 to 0xeaaf1ff8) 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 r4:85945140 INFO: task kworker/1:209:4942 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a4023000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/0:214:4944 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:214 state:D stack:0 pid:4944 tgid:4944 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eab11d84 r9:829174e8 r8:60000013 r7:829174e8 r6:eab11d8c r5:859de000 r4:859de000 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:859de000 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eab11e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d26300 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:859de000 r7:00000000 r6:83018400 r5:00001000 r4:7f055000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:eaa69000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:859f1f94 r4:85d27400 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:859f1f94 r4:85d27400 [<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 r9:859de000 r8:85d2742c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d27400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d27400 r8:802762fc r7:eaa45e60 r6:85d20900 r5:859de000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeab11fb0 to 0xeab11ff8) 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 r4:85d25dc0 INFO: task kworker/0:214:4944 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a4143000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 INFO: task kworker/0:215:4951 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:215 state:D stack:0 pid:4951 tgid:4951 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab30c8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1e1c>] (__schedule) from [<81ab30c8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:eaa55d84 r9:829174e8 r8:60000113 r7:829174e8 r6:eaa55d8c r5:852b1800 r4:852b1800 [<81ab309c>] (schedule) from [<81ab3250>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:852b1800 r4:829174e4 [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3238>] (schedule_preempt_disabled) from [<81ab68d4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab627c>] (__mutex_lock.constprop.0) from [<81ab72dc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eaa55e08 r4:00000000 [<81ab72c8>] (__mutex_lock_slowpath) from [<81ab731c>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72e0>] (mutex_lock) from [<804f4330>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d260c0 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:852b1800 r7:00000000 r6:83018400 r5:00001000 r4:7f05d000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e0313000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85d9a394 r4:85d27380 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85d9a394 r4:85d27380 [<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 r9:852b1800 r8:85d273ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85d27380 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d27380 r8:802762fc r7:eaa4de60 r6:85d27480 r5:852b1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaa55fb0 to 0xeaa55ff8) 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 r4:85d261c0 INFO: task kworker/0:215:4951 is blocked on a mutex likely owned by task kworker/1:208:4926. task:kworker/1:208 state:R running task stack:0 pid:4926 tgid:4926 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1e1c>] (__schedule) from [<81ab34fc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:859d9800 r8:80200c04 r7:eaab5d54 r6:ffffffff r5:859d9800 r4:00000000 [<81ab34bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xeaab5d20 to 0xeaab5d68) 5d20: a42fe000 ebed3000 00000001 80239018 7f045000 00000001 82ace204 82acd5e0 5d40: 7f045000 ebed3000 8280ca38 eaab5d9c eaab5da0 eaab5d70 8022fe10 80239030 5d60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f40f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3e70>] (__purge_vmap_area_lazy) from [<804f44ac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:eaab5dc0 r5:eaab5e08 r4:eaab5dc0 [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f42c8>] (_vm_unmap_aliases) from [<804f8118>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858f8180 r4:00000000 [<804f7fac>] (vfree) from [<80563f24>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:859d9800 r7:00000000 r6:83018600 r5:00001000 r4:7f047000 [<80563ef4>] (execmem_free) from [<803cb214>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfc29000 [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb204>] (bpf_jit_free_exec) from [<803cb5f4>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb58c>] (bpf_jit_free) from [<803cc71c>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:8599a794 r4:85d20280 [<803cc5dc>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:8599a794 r4:85d20280 [<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 r9:859d9800 r8:85d202ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d20280 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d20280 r8:802762fc r7:dfae5e60 r6:85d20300 r5:859d9800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeaab5fb0 to 0xeaab5ff8) 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 r4:85947200 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 r6:00000013 r5:60000093 r4:8229592c [<80201b58>] (show_stack) from [<8021ee34>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b58>] (show_stack) from [<8021ee34>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021edc4>] (dump_stack_lvl) from [<8021ee58>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000001 r4:00000001 [<8021ee40>] (dump_stack) from [<81a9b900>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9b7a0>] (nmi_cpu_backtrace) from [<81a9ba4c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8280c710 r5:8281af5c r4:ffffffff [<81a9b91c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007bc4 r8:8280c890 r7:00022ef4 r6:00007bc4 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa355c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa355c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa355c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa34f4>] (sys_info) from [<80383748>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa34f4>] (sys_info) from [<80383748>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:860b9d0c [<803832e4>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:803832e4 r7:830d6980 r6:830d6980 r5:8321c800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 r4:833ce740 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2818 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 : [<81abca70>] lr : [<80aa3928>] psr: 600f0113 sp : eb0d5eb0 ip : eb0d5ec0 fp : eb0d5ebc r10: 82959c04 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 000008cd r2 : 00000000 r1 : 600f0113 r0 : 84422c40 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84f67b00 DAC: fffffffd Call trace: [<81abca48>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abca48>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abca48>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603) [<80aa3908>] (pl011_console_device_unlock) from [<802e5720>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149) [<802e5698>] (nbcon_emit_one) from [<802e59a0>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255) r6:82abf0fc r5:82959b68 r4:8465c800 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5798 r7:84c44180 r6:84c44180 r5:8465c800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb0d5fb0 to 0xeb0d5ff8) 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 r4:84caae00