Extracting prog: 4m3.688319802s Minimizing prog: 49m41.267015076s Simplifying prog options: 12m49.218840551s Extracting C: 1m10.535758092s Simplifying C: 0s extracting reproducer from 35 programs first checking the prog from the crash report single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-socket$kcm-bpf$MAP_UPDATE_ELEM_TAIL_CALL-perf_event_open-socket$kcm-setsockopt$sock_attach_bpf-close-perf_event_open-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) socket$kcm(0x2c, 0x3, 0x0) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, 0x0, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) setsockopt$sock_attach_bpf(r0, 0x11, 0x68, &(0x7f0000000640), 0x4) close(r0) perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4d31, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) close(0x4) program crashed: INFO: rcu detected stall in addrconf_rs_timer single: successfully extracted reproducer found reproducer with 9 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-socket$kcm-bpf$MAP_UPDATE_ELEM_TAIL_CALL-perf_event_open-socket$kcm-setsockopt$sock_attach_bpf-close-perf_event_open detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) socket$kcm(0x2c, 0x3, 0x0) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, 0x0, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) setsockopt$sock_attach_bpf(r0, 0x11, 0x68, &(0x7f0000000640), 0x4) close(r0) perf_event_open(&(0x7f00000003c0)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4d31, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext={0x8, 0x830d}, 0x0, 0x2, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) program crashed: INFO: rcu detected stall in addrconf_rs_timer testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-socket$kcm-bpf$MAP_UPDATE_ELEM_TAIL_CALL-perf_event_open-socket$kcm-setsockopt$sock_attach_bpf-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) socket$kcm(0x2c, 0x3, 0x0) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, 0x0, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) setsockopt$sock_attach_bpf(r0, 0x11, 0x68, &(0x7f0000000640), 0x4) close(r0) program crashed: INFO: rcu detected stall in smp_call_function testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-socket$kcm-bpf$MAP_UPDATE_ELEM_TAIL_CALL-perf_event_open-socket$kcm-setsockopt$sock_attach_bpf detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) socket$kcm(0x2c, 0x3, 0x0) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, 0x0, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) setsockopt$sock_attach_bpf(r0, 0x11, 0x68, &(0x7f0000000640), 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-socket$kcm-bpf$MAP_UPDATE_ELEM_TAIL_CALL-perf_event_open-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) socket$kcm(0x2c, 0x3, 0x0) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, 0x0, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program crashed: INFO: rcu detected stall in sock_close testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-socket$kcm-bpf$MAP_UPDATE_ELEM_TAIL_CALL-perf_event_open-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) socket$kcm(0x2c, 0x3, 0x0) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, 0x0, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) close(0xffffffffffffffff) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-socket$kcm-bpf$MAP_UPDATE_ELEM_TAIL_CALL-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) socket$kcm(0x2c, 0x3, 0x0) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, 0x0, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-socket$kcm-perf_event_open-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) socket$kcm(0x2c, 0x3, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program crashed: INFO: rcu detected stall in unwind_next_frame testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-perf_event_open-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program crashed: INFO: rcu detected stall in __fput testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): perf_event_open-socket$kcm-close detailed listing: executing program 0: perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-perf_event_open-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-perf_event_open-socket$kcm-close program crashed: INFO: rcu detected stall in corrupted a never seen crash title: INFO: rcu detected stall in corrupted, ignore simplifying guilty program options testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-perf_event_open-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-perf_event_open-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-perf_event_open-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program crashed: INFO: rcu detected stall in sock_close validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-perf_event_open-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program crashed: INFO: rcu detected stall in syscall_enter_from_user_mode validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-perf_event_open-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program did not crash validation run: crashed=false testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-perf_event_open-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true reproducing took 1h25m28.635040056s repro crashed as (corrupted=true): rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2661 jiffies s: 27801 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 17870 Comm: syz.0.6150 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:nmi_uaccess_okay+0x0/0xb0 arch/x86/mm/tlb.c:1303 Code: 03 38 c1 0f 8c 1a fe ff ff 48 c7 c7 24 44 20 8e e8 95 27 99 00 e9 09 fe ff ff 0f 0b 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 <41> 57 41 56 41 54 53 49 bc 00 00 00 00 00 fc ff df 65 4c 8b 35 e7 RSP: 0000:ffffc90004d36d20 EFLAGS: 00000006 RAX: ffffc90004d36e0c RBX: dffffc0000000000 RCX: 0000000000000016 RDX: 0000000000000100 RSI: 000000000000007f RDI: 0000000000000013 RBP: ffff8880282fc448 R08: ffffffff8e200f6f R09: 1ffffffff1c401ed R10: dffffc0000000000 R11: fffffbfff1c401ee R12: ffffc90004d37f58 R13: 00007f3d7cc32e6f R14: ffff8880282fc4f0 R15: 00007f3d7cb9ce59 FS: 00007f3d7da276c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000000 CR3: 000000005be1f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_callchain_user+0x1d3/0x13c0 arch/x86/events/core.c:2958 get_perf_callchain+0x39e/0x490 kernel/events/callchain.c:219 perf_callchain kernel/events/core.c:7512 [inline] perf_prepare_sample+0x399/0x2020 kernel/events/core.c:7545 __perf_event_output kernel/events/core.c:7730 [inline] perf_event_output_forward+0x197/0x2f0 kernel/events/core.c:7750 __perf_event_overflow+0x457/0x630 kernel/events/core.c:9496 perf_swevent_overflow kernel/events/core.c:9579 [inline] perf_swevent_event+0x315/0x570 kernel/events/core.c:9630 perf_tp_event+0x36b/0xc10 kernel/events/core.c:10064 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10032 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728 RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685 Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 e2 82 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08 RSP: 0000:ffffc90004d376a0 EFLAGS: 00000206 RAX: 1c3597f5d7f09c00 RBX: 1ffff920009a6edc RCX: 1c3597f5d7f09c00 RDX: dffffc0000000000 RSI: ffffffff8a8c17a0 RDI: ffffffff8adee1a0 RBP: ffffc90004d37790 R08: ffff8880b8e3580b R09: 1ffff110171c6b01 R10: dffffc0000000000 R11: ffffed10171c6b02 R12: 0000000000000246 R13: dffffc0000000000 R14: ffff8880b8e3bb00 R15: 0000000000000001 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426 rcu_read_unlock include/linux/rcupdate.h:823 [inline] is_bpf_text_address+0x27a/0x2a0 kernel/bpf/core.c:737 kernel_text_address+0x9c/0xd0 kernel/extable.c:125 __kernel_text_address+0x9/0x30 kernel/extable.c:79 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323 arch_stack_walk+0xf2/0x140 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122 ref_tracker_free+0x11b/0x830 lib/ref_tracker.c:121 netns_tracker_free include/net/net_namespace.h:336 [inline] put_net_track include/net/net_namespace.h:350 [inline] __sk_destruct+0x398/0x650 net/core/sock.c:2181 rcu_do_batch kernel/rcu/tree.c:2297 [inline] rcu_core+0x9a3/0x1740 kernel/rcu/tree.c:2557 handle_softirqs+0x291/0x910 kernel/softirq.c:596 __do_softirq kernel/softirq.c:630 [inline] invoke_softirq kernel/softirq.c:470 [inline] __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0033:0x7f3d7cb9ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3d7da27028 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007f3d7ce15fa0 RCX: 00007f3d7cb9ce59 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f3d7cc32e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3d7ce16038 R14: 00007f3d7ce15fa0 R15: 00007fffeaea8e78 report is corrupted, running repro again testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-perf_event_open-socket$kcm-close detailed listing: executing program 0: socket$kcm(0x2c, 0x3, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0x1d, 0x1, 0x0, 0x0, 0x0, 0x200000000000, 0x80520, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000, 0x4, @perf_bp={0x0}, 0x21, 0x0, 0x0, 0x6, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x2, 0x2, 0x0) close(r0) program crashed: INFO: rcu detected stall in smp_call_function final repro crashed as (corrupted=false): rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2676 jiffies s: 12021 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 10635 Comm: syz.1.2940 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:instrument_atomic_read include/linux/instrumented.h:72 [inline] RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] RIP: 0010:cpumask_test_cpu include/linux/cpumask.h:444 [inline] RIP: 0010:cpu_online include/linux/cpumask.h:1030 [inline] RIP: 0010:trace_lock_release include/trace/events/lock.h:69 [inline] RIP: 0010:lock_release+0xbb/0x920 kernel/locking/lockdep.c:5673 Code: b6 04 28 84 c0 0f 85 c7 05 00 00 3b 1d fe 9b bb 0c 0f 83 3a 05 00 00 41 89 de c1 eb 06 48 8d 3c dd 68 0f 20 8e be 08 00 00 00 d0 d4 6e 00 4c 0f a3 35 d0 99 bb 0c 73 0d e8 81 ac 07 00 84 c0 RSP: 0018:ffffc90000007220 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88805f173c00 RDX: 0000000000000100 RSI: 0000000000000008 RDI: ffffffff8e200f68 RBP: ffffc90000007330 R08: dffffc0000000000 R09: 1ffffffff215e448 R10: dffffc0000000000 R11: fffffbfff215e449 R12: dffffc0000000000 R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000e50 FS: 00007f10379b96c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1036a72780 CR3: 00000000571c4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_release include/linux/rcupdate.h:355 [inline] rcu_read_unlock_sched include/linux/rcupdate.h:904 [inline] pfn_valid include/linux/mmzone.h:1867 [inline] __virt_addr_valid+0x435/0x540 arch/x86/mm/physaddr.c:65 kasan_addr_to_slab+0x9/0xc0 mm/kasan/common.c:36 __kasan_record_aux_stack+0xf/0xc0 mm/kasan/generic.c:471 irq_work_queue_on+0x10f/0x260 kernel/irq_work.c:140 rcu_read_unlock_special+0x3c9/0x510 kernel/rcu/tree_plugin.h:678 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426 rcu_read_unlock include/linux/rcupdate.h:823 [inline] __perf_event_output kernel/events/core.c:7741 [inline] perf_event_output_forward+0x271/0x2f0 kernel/events/core.c:7750 __perf_event_overflow+0x457/0x630 kernel/events/core.c:9496 perf_swevent_overflow kernel/events/core.c:9579 [inline] perf_swevent_event+0x315/0x570 kernel/events/core.c:9630 perf_tp_event+0x36b/0xc10 kernel/events/core.c:10064 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10032 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728 RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685 Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 e2 82 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08 RSP: 0018:ffffc90000007c40 EFLAGS: 00000206 RAX: 8a051fc626c8bb00 RBX: 1ffff92000000f90 RCX: 8a051fc626c8bb00 RDX: dffffc0000000000 RSI: ffffffff8a8c17a0 RDI: ffffffff8adee1a0 RBP: ffffc90000007d30 R08: ffffffff90af2357 R09: 1ffffffff215e46a R10: dffffc0000000000 R11: fffffbfff215e46b R12: 0000000000000246 R13: dffffc0000000000 R14: ffff8880b8e3bb00 R15: 0000000000000001 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426 rcu_read_unlock include/linux/rcupdate.h:823 [inline] rebalance_domains+0x86f/0x9d0 kernel/sched/fair.c:11051 handle_softirqs+0x291/0x910 kernel/softirq.c:596 __do_softirq kernel/softirq.c:630 [inline] invoke_softirq kernel/softirq.c:470 [inline] __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:generic_exec_single+0x427/0x4a0 kernel/smp.c:545 Code: 75 11 e8 4c 04 0b 00 48 85 db 75 16 e8 42 04 0b 00 eb 15 e8 3b 04 0b 00 e8 56 bd b3 08 48 85 db 74 ea e8 2c 04 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 44 25 00 00 00 00 00 43 c7 44 25 RSP: 0018:ffffc900040cfa60 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffff88805f173c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900040cfb30 R08: ffffffff90af2357 R09: 1ffffffff215e46a R10: dffffc0000000000 R11: fffffbfff215e46b R12: dffffc0000000000 R13: 1ffff92000819f50 R14: 0000000000000000 R15: 1ffff92000819f71 smp_call_function_single+0x371/0x5a0 kernel/smp.c:784 task_function_call kernel/events/core.c:120 [inline] perf_install_in_context+0x5cf/0x930 kernel/events/core.c:2941 __do_sys_perf_event_open kernel/events/core.c:12824 [inline] __se_sys_perf_event_open+0x128b/0x1ec0 kernel/events/core.c:12418 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f1036b9ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f10379b9028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f1036e15fa0 RCX: 00007f1036b9ce59 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000140 RBP: 00007f1036c32e6f R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1036e16038 R14: 00007f1036e15fa0 R15: 00007ffc26a03788