Extracting prog: 10m23.023009483s Minimizing prog: 16m52.701131549s Simplifying prog options: 8m52.705430793s Extracting C: 6m19.320964931s Simplifying C: 0s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000002c0)=@newlink={0x44, 0x10, 0x44b, 0x0, 0x0, {0x7a}, [@IFLA_LINKINFO={0x24, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x14, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_ROUTER={0x5}, @IFLA_BR_MCAST_LAST_MEMBER_CNT={0x8, 0x15, 0x2}]}}}]}, 0x44}}, 0x0) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 1m40s testing program (duration=1m40s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000002c0)=@newlink={0x44, 0x10, 0x44b, 0x0, 0x0, {0x7a}, [@IFLA_LINKINFO={0x24, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x14, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_ROUTER={0x5}, @IFLA_BR_MCAST_LAST_MEMBER_CNT={0x8, 0x15, 0x2}]}}}]}, 0x44}}, 0x0) program did not crash single: failed to extract reproducer 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000002c0)=@newlink={0x44, 0x10, 0x44b, 0x0, 0x0, {0x7a}, [@IFLA_LINKINFO={0x24, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x14, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_ROUTER={0x5}, @IFLA_BR_MCAST_LAST_MEMBER_CNT={0x8, 0x15, 0x2}]}}}]}, 0x44}}, 0x0) program crashed: INFO: task hung in rtnl_lock single: successfully extracted reproducer found reproducer with 2 syscalls minimizing guilty program testing program (duration=7m46.325914336s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route detailed listing: executing program 0: socket$nl_route(0x10, 0x3, 0x0) program did not crash testing program (duration=7m46.325914336s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sendmsg$nl_route detailed listing: executing program 0: sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000002c0)=@newlink={0x44, 0x10, 0x44b, 0x0, 0x0, {0x7a}, [@IFLA_LINKINFO={0x24, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x14, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_ROUTER={0x5}, @IFLA_BR_MCAST_LAST_MEMBER_CNT={0x8, 0x15, 0x2}]}}}]}, 0x44}}, 0x0) program did not crash testing program (duration=7m46.325914336s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, 0x0, 0x0) program crashed: lost connection to test machine extracting C reproducer testing compiled C program (duration=7m46.325914336s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route program crashed: no output from test machine a never seen crash title: no output from test machine, ignore simplifying guilty program options testing program (duration=7m46.325914336s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, 0x0, 0x0) program did not crash testing program (duration=7m46.325914336s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, 0x0, 0x0) program did not crash reproducing took 42m27.750612225s repro crashed as (corrupted=false): final repro crashed as (corrupted=false):