Extracting prog: 5m50.179408682s Minimizing prog: 1h21m33.307566498s Simplifying prog options: 0s Extracting C: 9m22.663806716s Simplifying C: 1h0m27.279164758s 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-sendmsg$ETHTOOL_MSG_PAUSE_SET detailed listing: executing program 0: r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x4c, '\x00', 0x0, 0x2}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000880)={&(0x7f0000000a80)='kfree\x00', r0, 0x0, 0x6}, 0x18) sendmsg$ETHTOOL_MSG_PAUSE_SET(0xffffffffffffffff, 0x0, 0x0) 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-sendmsg$ETHTOOL_MSG_PAUSE_SET detailed listing: executing program 0: r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x4c, '\x00', 0x0, 0x2}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000880)={&(0x7f0000000a80)='kfree\x00', r0, 0x0, 0x6}, 0x18) sendmsg$ETHTOOL_MSG_PAUSE_SET(0xffffffffffffffff, 0x0, 0x0) program crashed: lost connection to test machine single: successfully extracted reproducer found reproducer with 3 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$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x4c, '\x00', 0x0, 0x2}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000880)={&(0x7f0000000a80)='kfree\x00', r0, 0x0, 0x6}, 0x18) program crashed: lost connection to test machine testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x4c, '\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, &(0x7f0000000180)={0x18, 0x5, 0x0, &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x4c, '\x00', 0x0, 0x2}, 0x94) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x4c, '\x00', 0x0, 0x2}, 0x94) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x4c, '\x00', 0x0, 0x2}, 0x94) program did not crash extracting C reproducer testing compiled C program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD program crashed: INFO: task hung in _vm_unmap_aliases simplifying C reproducer testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:2 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing compiled C program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD program crashed: INFO: task hung in _vm_unmap_aliases testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x4c, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x4c, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD detailed listing: executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000280)=ANY=[@ANYBLOB="1801000021000000000000003b810000850000006d000000070000000000000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x4c, '\x00', 0x0, 0x2}, 0x94) program crashed: INFO: task hung in _vm_unmap_aliases validation run: crashed=true reproducing took 3h16m45.297014622s repro crashed as (corrupted=false): INFO: task kworker/0:15:4124 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:15 state:D stack:0 pid:4124 tgid:4124 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfd9dd84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfd9dd8c r5:85b26c00 r4:85b26c00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85b26c00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfd9de08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d4d6c0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85b26c00 r7:00000000 r6:83018400 r5:00001000 r4:7f00f000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfaad000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85db2394 r4:852b5200 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85db2394 r4:852b5200 [<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 r9:85b26c00 r8:852b522c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:852b5200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852b5200 r8:802762fc r7:dfc99e60 r6:85cbdb80 r5:85b26c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfd9dfb0 to 0xdfd9dff8) 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 r4:85d4d400 INFO: task kworker/0:15:4124 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c71be000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/1:21:4147 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:21 state:D stack:0 pid:4147 tgid:4147 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:e0215d84 r9:829174e8 r8:60000113 r7:829174e8 r6:e0215d8c r5:83846c00 r4:83846c00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83846c00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e0215e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a2e00 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83846c00 r7:00000000 r6:83018600 r5:00001000 r4:7f00f000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa51000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85da9b94 r4:85d49000 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85da9b94 r4:85d49000 [<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 r9:83846c00 r8:85d4902c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d49000 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d49000 r8:802762fc r7:dfe61e60 r6:85d49280 r5:83846c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0215fb0 to 0xe0215ff8) 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 r4:85bd9dc0 INFO: task kworker/1:21:4147 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c72db000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/0:17:4148 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:17 state:D stack:0 pid:4148 tgid:4148 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfe7dd84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfe7dd8c r5:83e62400 r4:83e62400 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83e62400 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfe7de08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d4ad80 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83e62400 r7:00000000 r6:83018400 r5:00001000 r4:7f031000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfe0f000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85db0f94 r4:85a6a400 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85db0f94 r4:85a6a400 [<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 r9:83e62400 r8:85a6a42c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85a6a400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85a6a400 r8:802762fc r7:dfd35e60 r6:85a94800 r5:83e62400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfe7dfb0 to 0xdfe7dff8) 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 r4:85d4dcc0 INFO: task kworker/0:17:4148 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c72db000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/0:183:4801 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:183 state:D stack:0 pid:4801 tgid:4801 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea825d84 r9:829174e8 r8:60000013 r7:829174e8 r6:ea825d8c r5:85a9a400 r4:85a9a400 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85a9a400 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea825e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a2200 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85a9a400 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea96d000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dc9794 r4:858af300 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85dc9794 r4:858af300 [<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 r9:85a9a400 r8:858af32c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:858af300 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858af300 r8:802762fc r7:ea799e60 r6:858af380 r5:85a9a400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea825fb0 to 0xea825ff8) 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 r4:858a8180 INFO: task kworker/0:183:4801 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c78f0000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/0:184:4803 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:184 state:D stack:0 pid:4803 tgid:4803 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea771d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea771d8c r5:85a9bc00 r4:85a9bc00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85a9bc00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea771e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a5740 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85a9bc00 r7:00000000 r6:83018400 r5:00001000 r4:7f039000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea565000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85db2b94 r4:858af500 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85db2b94 r4:858af500 [<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 r9:85a9bc00 r8:858af52c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:858af500 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858af500 r8:802762fc r7:ea825e60 r6:858af580 r5:85a9bc00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85d50f80 INFO: task kworker/0:184:4803 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c80f8000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/0:185:4809 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:185 state:D stack:0 pid:4809 tgid:4809 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea875d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea875d8c r5:85a9d400 r4:85a9d400 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85a9d400 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea875e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d50140 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85a9d400 r7:00000000 r6:83018400 r5:00001000 r4:7f035000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01e7000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85db2794 r4:858af780 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85db2794 r4:858af780 [<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 r9:85a9d400 r8:858af7ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:858af780 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858af780 r8:802762fc r7:ea771e60 r6:858af800 r5:85a9d400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea875fb0 to 0xea875ff8) 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 r4:85d50640 INFO: task kworker/0:185:4809 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c80f8000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/1:166:4813 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:166 state:D stack:0 pid:4813 tgid:4813 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea895d84 r9:829174e8 r8:60000013 r7:829174e8 r6:ea895d8c r5:85a56c00 r4:85a56c00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85a56c00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea895e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a7040 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85a56c00 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea90f000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcb794 r4:858a4980 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcb794 r4:858a4980 [<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 r9:85a56c00 r8:858a49ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4980 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4980 r8:802762fc r7:dfd75e60 r6:858a4c00 r5:85a56c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea895fb0 to 0xea895ff8) 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 r4:85892340 INFO: task kworker/1:166:4813 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c80f8000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/1:170:4820 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:170 state:D stack:0 pid:4820 tgid:4820 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea8a1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea8a1d8c r5:85aa0000 r4:85aa0000 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85aa0000 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea8a1e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858b0e40 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa0000 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8eb000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcb394 r4:858a4780 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcb394 r4:858a4780 [<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 r9:85aa0000 r8:858a47ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4780 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4780 r8:802762fc r7:ea895e60 r6:858a4e80 r5:85aa0000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8a1fb0 to 0xea8a1ff8) 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 r4:858aef80 INFO: task kworker/1:170:4820 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c844b000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/1:171:4822 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:171 state:D stack:0 pid:4822 tgid:4822 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea8e9d84 r9:829174e8 r8:60000013 r7:829174e8 r6:ea8e9d8c r5:85aa2400 r4:85aa2400 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85aa2400 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea8e9e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a5a80 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa2400 r7:00000000 r6:83018600 r5:00001000 r4:7f02b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfd37000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dc8794 r4:858aa100 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dc8794 r4:858aa100 [<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 r9:85aa2400 r8:858aa12c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858aa100 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858aa100 r8:802762fc r7:ea895e60 r6:858aa180 r5:85aa2400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8e9fb0 to 0xea8e9ff8) 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 r4:858ae540 INFO: task kworker/1:171:4822 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c86e8000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/1:172:4823 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:172 state:D stack:0 pid:4823 tgid:4823 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea90dd84 r9:829174e8 r8:60000013 r7:829174e8 r6:ea90dd8c r5:85aa0c00 r4:85aa0c00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85aa0c00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea90de08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a5540 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f003000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:df96d000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcbb94 r4:858aa080 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcbb94 r4:858aa080 [<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 r9:85aa0c00 r8:858aa0ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858aa080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858aa080 r8:802762fc r7:ea895e60 r6:858aa300 r5:85aa0c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea90dfb0 to 0xea90dff8) 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 r4:84cfc840 INFO: task kworker/1:172:4823 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c86e8000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 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 r6:00000113 r5:60000193 r4:82295830 [<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 [<81a9b8e0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9b780>] (nmi_cpu_backtrace) from [<81a9ba2c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8280c710 r5:8281af5c r4:ffffffff [<81a9b8fc>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007c22 r8:8280c890 r7:0000d1ed r6:00007c22 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa34d4>] (sys_info) from [<80383780>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa34d4>] (sys_info) from [<80383780>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:8605ec0c [<8038331c>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:8038331c r7:8332b080 r6:8332b080 r5:8321e000 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 r4:832c0cc0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2819 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194 LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline] LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603 pc : [<81abca50>] lr : [<80aa3928>] psr: 60000113 sp : eb209eb0 ip : eb209ec0 fp : eb209ebc r10: 82959c04 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 00000847 r2 : 00000000 r1 : 60000113 r0 : 8442cc40 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84c9a380 DAC: fffffffd Call trace: [<81abca28>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abca28>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abca28>] (_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 r4:845be000 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5798 r7:84eb9d80 r6:84eb9d80 r5:845be000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb209fb0 to 0xeb209ff8) 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 r4:8468d140 final repro crashed as (corrupted=false): INFO: task kworker/0:15:4124 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:15 state:D stack:0 pid:4124 tgid:4124 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfd9dd84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfd9dd8c r5:85b26c00 r4:85b26c00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85b26c00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfd9de08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d4d6c0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85b26c00 r7:00000000 r6:83018400 r5:00001000 r4:7f00f000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfaad000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85db2394 r4:852b5200 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85db2394 r4:852b5200 [<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 r9:85b26c00 r8:852b522c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:852b5200 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:852b5200 r8:802762fc r7:dfc99e60 r6:85cbdb80 r5:85b26c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfd9dfb0 to 0xdfd9dff8) 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 r4:85d4d400 INFO: task kworker/0:15:4124 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c71be000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/1:21:4147 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:21 state:D stack:0 pid:4147 tgid:4147 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:e0215d84 r9:829174e8 r8:60000113 r7:829174e8 r6:e0215d8c r5:83846c00 r4:83846c00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83846c00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e0215e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a2e00 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:83846c00 r7:00000000 r6:83018600 r5:00001000 r4:7f00f000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfa51000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85da9b94 r4:85d49000 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85da9b94 r4:85d49000 [<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 r9:83846c00 r8:85d4902c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:85d49000 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85d49000 r8:802762fc r7:dfe61e60 r6:85d49280 r5:83846c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xe0215fb0 to 0xe0215ff8) 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 r4:85bd9dc0 INFO: task kworker/1:21:4147 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c72db000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/0:17:4148 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:17 state:D stack:0 pid:4148 tgid:4148 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:dfe7dd84 r9:829174e8 r8:60000113 r7:829174e8 r6:dfe7dd8c r5:83e62400 r4:83e62400 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:83e62400 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfe7de08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d4ad80 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:83e62400 r7:00000000 r6:83018400 r5:00001000 r4:7f031000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfe0f000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85db0f94 r4:85a6a400 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85db0f94 r4:85a6a400 [<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 r9:83e62400 r8:85a6a42c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:85a6a400 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:85a6a400 r8:802762fc r7:dfd35e60 r6:85a94800 r5:83e62400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfe7dfb0 to 0xdfe7dff8) 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 r4:85d4dcc0 INFO: task kworker/0:17:4148 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c72db000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/0:183:4801 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:183 state:D stack:0 pid:4801 tgid:4801 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea825d84 r9:829174e8 r8:60000013 r7:829174e8 r6:ea825d8c r5:85a9a400 r4:85a9a400 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85a9a400 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea825e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a2200 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85a9a400 r7:00000000 r6:83018400 r5:00001000 r4:7f04d000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea96d000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dc9794 r4:858af300 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85dc9794 r4:858af300 [<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 r9:85a9a400 r8:858af32c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:858af300 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858af300 r8:802762fc r7:ea799e60 r6:858af380 r5:85a9a400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea825fb0 to 0xea825ff8) 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 r4:858a8180 INFO: task kworker/0:183:4801 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c78f0000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/0:184:4803 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:184 state:D stack:0 pid:4803 tgid:4803 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea771d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea771d8c r5:85a9bc00 r4:85a9bc00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85a9bc00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea771e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a5740 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85a9bc00 r7:00000000 r6:83018400 r5:00001000 r4:7f039000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea565000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85db2b94 r4:858af500 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85db2b94 r4:858af500 [<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 r9:85a9bc00 r8:858af52c r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:858af500 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858af500 r8:802762fc r7:ea825e60 r6:858af580 r5:85a9bc00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea771fb0 to 0xea771ff8) 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 r4:85d50f80 INFO: task kworker/0:184:4803 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c80f8000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/0:185:4809 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:185 state:D stack:0 pid:4809 tgid:4809 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea875d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea875d8c r5:85a9d400 r4:85a9d400 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85a9d400 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea875e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85d50140 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018405 r8:85a9d400 r7:00000000 r6:83018400 r5:00001000 r4:7f035000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:e01e7000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85db2794 r4:858af780 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:dddcfb40 r6:83018400 r5:85db2794 r4:858af780 [<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 r9:85a9d400 r8:858af7ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 r4:858af780 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858af780 r8:802762fc r7:ea771e60 r6:858af800 r5:85a9d400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea875fb0 to 0xea875ff8) 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 r4:85d50640 INFO: task kworker/0:185:4809 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c80f8000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/1:166:4813 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:166 state:D stack:0 pid:4813 tgid:4813 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea895d84 r9:829174e8 r8:60000013 r7:829174e8 r6:ea895d8c r5:85a56c00 r4:85a56c00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85a56c00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea895e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a7040 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85a56c00 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea90f000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcb794 r4:858a4980 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcb794 r4:858a4980 [<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 r9:85a56c00 r8:858a49ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4980 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4980 r8:802762fc r7:dfd75e60 r6:858a4c00 r5:85a56c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea895fb0 to 0xea895ff8) 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 r4:85892340 INFO: task kworker/1:166:4813 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c80f8000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/1:170:4820 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:170 state:D stack:0 pid:4820 tgid:4820 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea8a1d84 r9:829174e8 r8:60000113 r7:829174e8 r6:ea8a1d8c r5:85aa0000 r4:85aa0000 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85aa0000 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea8a1e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858b0e40 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa0000 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8eb000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcb394 r4:858a4780 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcb394 r4:858a4780 [<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 r9:85aa0000 r8:858a47ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4780 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4780 r8:802762fc r7:ea895e60 r6:858a4e80 r5:85aa0000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8a1fb0 to 0xea8a1ff8) 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 r4:858aef80 INFO: task kworker/1:170:4820 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c844b000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/1:171:4822 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:171 state:D stack:0 pid:4822 tgid:4822 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea8e9d84 r9:829174e8 r8:60000013 r7:829174e8 r6:ea8e9d8c r5:85aa2400 r4:85aa2400 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85aa2400 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea8e9e08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a5a80 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa2400 r7:00000000 r6:83018600 r5:00001000 r4:7f02b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:dfd37000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dc8794 r4:858aa100 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dc8794 r4:858aa100 [<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 r9:85aa2400 r8:858aa12c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858aa100 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858aa100 r8:802762fc r7:ea895e60 r6:858aa180 r5:85aa2400 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8e9fb0 to 0xea8e9ff8) 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 r4:858ae540 INFO: task kworker/1:171:4822 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c86e8000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 INFO: task kworker/1:172:4823 blocked for more than 430 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:172 state:D stack:0 pid:4823 tgid:4823 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab30a8>] (__schedule_loop kernel/sched/core.c:6945 [inline]) [<81ab1dfc>] (__schedule) from [<81ab30a8>] (schedule+0x2c/0x130 kernel/sched/core.c:6960) r10:ea90dd84 r9:829174e8 r8:60000013 r7:829174e8 r6:ea90dd8c r5:85aa0c00 r4:85aa0c00 [<81ab307c>] (schedule) from [<81ab3230>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7017) r5:85aa0c00 r4:829174e4 [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline]) [<81ab3218>] (schedule_preempt_disabled) from [<81ab68b4>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776) [<81ab625c>] (__mutex_lock.constprop.0) from [<81ab72bc>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065) r10:8280c9e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea90de08 r4:00000000 [<81ab72a8>] (__mutex_lock_slowpath) from [<81ab72fc>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290) [<81ab72c0>] (mutex_lock) from [<804f4368>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858a5540 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f003000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:df96d000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcbb94 r4:858aa080 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcbb94 r4:858aa080 [<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 r9:85aa0c00 r8:858aa0ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858aa080 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858aa080 r8:802762fc r7:ea895e60 r6:858aa300 r5:85aa0c00 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea90dfb0 to 0xea90dff8) 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 r4:84cfc840 INFO: task kworker/1:172:4823 is blocked on a mutex likely owned by task kworker/1:169:4819. task:kworker/1:169 state:R running task stack:0 pid:4819 tgid:4819 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81ab1dfc>] (__schedule) from [<81ab34dc>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7190) r10:8280ca38 r9:85aa1800 r8:80200c04 r7:ea8bdd54 r6:ffffffff r5:85aa1800 r4:00000000 [<81ab349c>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) Exception stack(0xea8bdd20 to 0xea8bdd68) dd20: c86e8000 ebcd9000 00000001 80239018 7f02f000 00000001 82ace204 82acd5e0 dd40: 7f02f000 ebcd9000 8280ca38 ea8bdd9c ea8bdda0 ea8bdd70 8022fe10 80239030 dd60: 80000013 ffffffff r5:80000013 r4:80239030 [<8022fdac>] (flush_tlb_kernel_range) from [<804f412c>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369) r4:82ace224 [<804f3ea8>] (__purge_vmap_area_lazy) from [<804f44e4>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea8bddc0 r5:ea8bde08 r4:ea8bddc0 [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vm_reset_perms mm/vmalloc.c:3375 [inline]) [<804f4300>] (_vm_unmap_aliases) from [<804f8150>] (vfree+0x16c/0x210 mm/vmalloc.c:3454) r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:858aefc0 r4:00000000 [<804f7fe4>] (vfree) from [<80563f5c>] (execmem_free+0x30/0x50 mm/execmem.c:503) r9:83018605 r8:85aa1800 r7:00000000 r6:83018600 r5:00001000 r4:7f04b000 [<80563f2c>] (execmem_free) from [<803cb24c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068) r5:00001000 r4:ea8bf000 [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline]) [<803cb23c>] (bpf_jit_free_exec) from [<803cb62c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237) [<803cb5c4>] (bpf_jit_free) from [<803cc754>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935) r5:85dcaf94 r4:858a4600 [<803cc614>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257) r7:ddde3b40 r6:83018600 r5:85dcaf94 r4:858a4600 [<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 r9:85aa1800 r8:858a462c r7:82804d80 r6:ddde3b40 r5:ddde3b60 r4:858a4600 [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:858a4600 r8:802762fc r7:ea895e60 r6:858a4580 r5:85aa1800 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8bdfb0 to 0xea8bdff8) 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 r4:858aee80 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 r6:00000113 r5:60000193 r4:82295830 [<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 [<81a9b8e0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a9b780>] (nmi_cpu_backtrace) from [<81a9ba2c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8280c710 r5:8281af5c r4:ffffffff [<81a9b8fc>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:00007c22 r8:8280c890 r7:0000d1ed r6:00007c22 r5:82ac27e4 r4:00000048 [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (__sys_info lib/sys_info.c:157 [inline]) [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa353c>] (sys_info+0x68/0xa8 lib/sys_info.c:165) [<81aa34d4>] (sys_info) from [<80383780>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]) [<81aa34d4>] (sys_info) from [<80383780>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515) r5:82ac27e4 r4:8605ec0c [<8038331c>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:00000000 r8:8038331c r7:8332b080 r6:8332b080 r5:8321e000 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 r4:832c0cc0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2819 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194 LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline] LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603 pc : [<81abca50>] lr : [<80aa3928>] psr: 60000113 sp : eb209eb0 ip : eb209ec0 fp : eb209ebc r10: 82959c04 r9 : 00000000 r8 : 00000000 r7 : 00000117 r6 : 82959b68 r5 : 00000000 r4 : 00000001 r3 : 00000847 r2 : 00000000 r1 : 60000113 r0 : 8442cc40 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84c9a380 DAC: fffffffd Call trace: [<81abca28>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81abca28>] (_raw_spin_unlock_irqrestore) from [<80aa3928>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]) [<81abca28>] (_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 r4:845be000 [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:82959b68 r8:802e5798 r7:84eb9d80 r6:84eb9d80 r5:845be000 r4:00000001 [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xeb209fb0 to 0xeb209ff8) 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 r4:8468d140