Extracting prog: 5m28.659687905s Minimizing prog: 2h15m36.159578056s Simplifying prog options: 17m47.289768513s Extracting C: 5m9.285443431s Simplifying C: 0s extracting reproducer from 38 programs testing a last program of every proc single: executing 8 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$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun-sendmsg$nl_route-socket$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) r2 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) write$tun(r1, &(0x7f0000000240)={@val={0x8}, @val={0x3, 0x0, 0x0, 0x0, 0x14}, @ipv4=@generic={{0x5, 0x4, 0x1, 0x2b, 0x16, 0x68, 0x0, 0x60, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast}, "0bed"}}, 0x24) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) socket$netlink(0x10, 0x3, 0x0) (async) openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) (async) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) (async) socket$kcm(0x2, 0xa, 0x2) (async) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) (async) write$tun(r1, &(0x7f0000000240)={@val={0x8}, @val={0x3, 0x0, 0x0, 0x0, 0x14}, @ipv4=@generic={{0x5, 0x4, 0x1, 0x2b, 0x16, 0x68, 0x0, 0x60, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast}, "0bed"}}, 0x24) (async) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock single: successfully extracted reproducer found reproducer with 14 syscalls minimizing guilty program testing program (duration=8m9.305686318s, {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$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun-sendmsg$nl_route-socket$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) r2 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) write$tun(r1, &(0x7f0000000240)={@val={0x8}, @val={0x3, 0x0, 0x0, 0x0, 0x14}, @ipv4=@generic={{0x5, 0x4, 0x1, 0x2b, 0x16, 0x68, 0x0, 0x60, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast}, "0bed"}}, 0x24) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) socket$netlink(0x10, 0x3, 0x0) (async) openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) (async) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) (async) socket$kcm(0x2, 0xa, 0x2) (async) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) (async) write$tun(r1, &(0x7f0000000240)={@val={0x8}, @val={0x3, 0x0, 0x0, 0x0, 0x14}, @ipv4=@generic={{0x5, 0x4, 0x1, 0x2b, 0x16, 0x68, 0x0, 0x60, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast}, "0bed"}}, 0x24) (async) program did not crash testing program (duration=8m9.305686318s, {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$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun-sendmsg$nl_route-socket$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) r2 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) write$tun(r1, &(0x7f0000000240)={@val={0x8}, @val={0x3, 0x0, 0x0, 0x0, 0x14}, @ipv4=@generic={{0x5, 0x4, 0x1, 0x2b, 0x16, 0x68, 0x0, 0x60, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast}, "0bed"}}, 0x24) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) socket$netlink(0x10, 0x3, 0x0) (async) openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) (async) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) (async) socket$kcm(0x2, 0xa, 0x2) (async) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) (async) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun-sendmsg$nl_route-socket$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) r2 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) write$tun(r1, &(0x7f0000000240)={@val={0x8}, @val={0x3, 0x0, 0x0, 0x0, 0x14}, @ipv4=@generic={{0x5, 0x4, 0x1, 0x2b, 0x16, 0x68, 0x0, 0x60, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast}, "0bed"}}, 0x24) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) socket$netlink(0x10, 0x3, 0x0) (async) openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) (async) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) (async) socket$kcm(0x2, 0xa, 0x2) (async) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun-sendmsg$nl_route-socket$netlink-openat$tun-ioctl$TUNSETIFF-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) r2 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) write$tun(r1, &(0x7f0000000240)={@val={0x8}, @val={0x3, 0x0, 0x0, 0x0, 0x14}, @ipv4=@generic={{0x5, 0x4, 0x1, 0x2b, 0x16, 0x68, 0x0, 0x60, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast}, "0bed"}}, 0x24) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) socket$netlink(0x10, 0x3, 0x0) (async) openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) (async) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) (async) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun-sendmsg$nl_route-socket$netlink-openat$tun-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) r2 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) write$tun(r1, &(0x7f0000000240)={@val={0x8}, @val={0x3, 0x0, 0x0, 0x0, 0x14}, @ipv4=@generic={{0x5, 0x4, 0x1, 0x2b, 0x16, 0x68, 0x0, 0x60, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast}, "0bed"}}, 0x24) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) socket$netlink(0x10, 0x3, 0x0) (async) openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) (async) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun-sendmsg$nl_route-socket$netlink-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) r2 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) write$tun(r1, &(0x7f0000000240)={@val={0x8}, @val={0x3, 0x0, 0x0, 0x0, 0x14}, @ipv4=@generic={{0x5, 0x4, 0x1, 0x2b, 0x16, 0x68, 0x0, 0x60, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast}, "0bed"}}, 0x24) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) socket$netlink(0x10, 0x3, 0x0) (async) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) r2 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) write$tun(r1, &(0x7f0000000240)={@val={0x8}, @val={0x3, 0x0, 0x0, 0x0, 0x14}, @ipv4=@generic={{0x5, 0x4, 0x1, 0x2b, 0x16, 0x68, 0x0, 0x60, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast}, "0bed"}}, 0x24) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) r2 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) write$tun(r1, &(0x7f0000000240)={@val={0x8}, @val={0x3, 0x0, 0x0, 0x0, 0x14}, @ipv4=@generic={{0x5, 0x4, 0x1, 0x2b, 0x16, 0x68, 0x0, 0x60, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @broadcast}, "0bed"}}, 0x24) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program did not crash testing program (duration=8m9.305686318s, {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$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) r2 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r2, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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$netlink-openat$tun-ioctl$TUNSETIFF-socket$kcm-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) socket$kcm(0x2, 0xa, 0x2) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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$netlink-openat$tun-ioctl$TUNSETIFF-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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$netlink-openat$tun-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x42901, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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}}): sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) (async) program did not crash testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program crashed: INFO: task hung in rtnl_lock testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, 0x0, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program did not crash testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program did not crash testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={0x0}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program did not crash testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, 0x0, 0x4000084) program did not crash testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program did not crash testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={0x0}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program did not crash extracting C reproducer testing compiled C program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route program crashed: no output from test machine a never seen crash title: no output from test machine, ignore simplifying guilty program options testing program (duration=8m9.305686318s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program crashed: INFO: task hung in rtnl_lock extracting C reproducer testing compiled C program (duration=8m9.305686318s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-sendmsg$nl_route program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing program (duration=8m9.305686318s, {Threaded:false 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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program did not crash testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program crashed: INFO: task hung in rtnl_lock validation run: crashed=true testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program crashed: INFO: task hung in rtnl_lock validation run: crashed=true testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program did not crash validation run: crashed=false testing program (duration=8m9.305686318s, {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$netlink-sendmsg$nl_route-sendmsg$nl_route detailed listing: executing program 0: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x40, 0x10, 0x503, 0x70bd2a, 0x4, {0x0, 0x0, 0x0, 0x0, 0x8440, 0x800}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @bridge={{0xb}, {0x10, 0x2, 0x0, 0x1, [@IFLA_BR_MCAST_QUERY_INTVL={0xc, 0x21, 0x40000004}]}}}]}, 0x40}, 0x1, 0x0, 0x0, 0x4804}, 0x4000084) program crashed: INFO: task hung in rtnl_lock validation run: crashed=true reproducing took 3h5m48.775791346s repro crashed as (corrupted=false): INFO: task kworker/0:2:856 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:2 state:D stack:0 pid:856 tgid:856 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events netdev_rx_mode_work Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 netdev_rx_mode_work+0x28/0x37c net/core/dev_addr_lists.c:1312 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 INFO: task kworker/1:2:1051 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:0 pid:1051 tgid:1051 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events switchdev_deferred_process_work Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 switchdev_deferred_process_work+0x14/0x28 net/switchdev/switchdev.c:104 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 INFO: task kworker/u8:12:3828 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:12 state:D stack:0 pid:3828 tgid:3828 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: ipv6_addrconf addrconf_dad_work Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] addrconf_dad_work+0x100/0xfd8 net/ipv6/addrconf.c:4206 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 INFO: task dhcpcd:4361 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:0 pid:4361 tgid:4361 ppid:4360 task_flags:0x400140 flags:0x00000000 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] devinet_ioctl+0x2b0/0x15bc net/ipv4/devinet.c:1120 inet_ioctl+0x334/0x460 net/ipv4/af_inet.c:1011 sock_do_ioctl+0x100/0x254 net/socket.c:1313 sock_ioctl+0x558/0x7e8 net/socket.c:1434 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:583 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task kworker/u8:0:4833 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:0 state:D stack:0 pid:4833 tgid:4833 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events_unbound linkwatch_event Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 linkwatch_event+0x14/0x68 net/core/link_watch.c:313 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 INFO: task syz-executor:7994 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:7994 tgid:7994 ppid:1 task_flags:0x400140 flags:0x00800011 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 ieee80211_register_hw+0x28e4/0x338c net/mac80211/main.c:1633 mac80211_hwsim_new_radio+0x2308/0x3fb8 drivers/net/wireless/virtual/mac80211_hwsim.c:6019 hwsim_new_radio_nl+0xa78/0x1604 drivers/net/wireless/virtual/mac80211_hwsim.c:6726 genl_family_rcv_msg_doit+0x1e4/0x2d8 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x444/0x620 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 genl_rcv+0x38/0x50 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz-executor:8071 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:8071 tgid:8071 ppid:1 task_flags:0x400140 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] inet_rtm_newaddr+0x364/0x10e8 net/ipv4/devinet.c:978 rtnetlink_rcv_msg+0x64c/0x984 net/core/rtnetlink.c:6995 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7022 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz-executor:8075 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:8075 tgid:8075 ppid:1 task_flags:0x400140 flags:0x00800011 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] inet_rtm_newaddr+0x364/0x10e8 net/ipv4/devinet.c:978 rtnetlink_rcv_msg+0x64c/0x984 net/core/rtnetlink.c:6995 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7022 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz-executor:8081 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:8081 tgid:8081 ppid:1 task_flags:0x400140 flags:0x00000001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock net/core/rtnetlink.c:80 [inline] rtnl_nets_lock+0x38/0x10c net/core/rtnetlink.c:341 rtnl_newlink+0x578/0x113c net/core/rtnetlink.c:4108 rtnetlink_rcv_msg+0x64c/0x984 net/core/rtnetlink.c:6995 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7022 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz-executor:8082 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:8082 tgid:8082 ppid:1 task_flags:0x400140 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] inet6_rtm_newaddr+0x474/0xa58 net/ipv6/addrconf.c:5039 rtnetlink_rcv_msg+0x64c/0x984 net/core/rtnetlink.c:6995 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7022 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task syz-executor:8335 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:8335 tgid:8335 ppid:1 task_flags:0x400140 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] inet_rtm_newaddr+0x364/0x10e8 net/ipv4/devinet.c:978 rtnetlink_rcv_msg+0x64c/0x984 net/core/rtnetlink.c:6995 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7022 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: __ll_sc_atomic64_fetch_or arch/arm64/include/asm/atomic_ll_sc.h:-1 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: arch_atomic64_fetch_or arch/arm64/include/asm/atomic.h:86 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: raw_atomic64_fetch_or include/linux/atomic/atomic-arch-fallback.h:3816 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: raw_atomic_long_fetch_or include/linux/atomic/atomic-long.h:1090 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: arch_test_and_set_bit include/asm-generic/bitops/atomic.h:42 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: test_and_set_bit include/asm-generic/bitops/instrumented-atomic.h:72 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x0/0x44 kernel/sched/sched.h:3869 3 locks held by kworker/0:2/856: #0: ffff0000c002b540 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800094b77be0 (rx_mode_work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/1:2/1051: #0: ffff0000c002b540 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800095427be0 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/u8:12/3828: #0: ffff0000cf0be140 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800099c57be0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by klogd/4294: 1 lock held by dhcpcd/4361: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by getty/4454: #0: ffff0000d00160a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009228b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x354/0xf84 drivers/tty/n_tty.c:2211 3 locks held by kworker/u8:0/4833: #0: ffff0000c004c140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800098437be0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 5 locks held by kworker/u8:4/4872: #0: ffff0000c004e140 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800095e37be0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b78428 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x100/0x6b8 net/core/net_namespace.c:673 #3: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 #4: ffff800088acbbb8 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x58/0x4f8 kernel/rcu/tree.c:3828 3 locks held by syz-executor/7994: #0: ffff800089bebf68 (cb_lock){++++}-{4:4}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:1217 #1: ffff800089bebda0 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffff800089bebda0 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffff800089bebda0 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0xec/0x620 net/netlink/genetlink.c:1208 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8071: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8075: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8081: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock+0x38/0x10c net/core/rtnetlink.c:341 1 lock held by syz-executor/8082: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8335: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8343: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8344: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8350: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8354: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/u8:8/8363: #0: ffff0000c004b940 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800097f07be0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8365: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8374: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8378: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8380: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8386: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8399: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8407: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8411: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8418: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8419: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 ============================================= final repro crashed as (corrupted=false): INFO: task kworker/0:2:856 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:2 state:D stack:0 pid:856 tgid:856 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events netdev_rx_mode_work Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 netdev_rx_mode_work+0x28/0x37c net/core/dev_addr_lists.c:1312 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 INFO: task kworker/1:2:1051 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:0 pid:1051 tgid:1051 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events switchdev_deferred_process_work Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 switchdev_deferred_process_work+0x14/0x28 net/switchdev/switchdev.c:104 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 INFO: task kworker/u8:12:3828 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:12 state:D stack:0 pid:3828 tgid:3828 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: ipv6_addrconf addrconf_dad_work Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] addrconf_dad_work+0x100/0xfd8 net/ipv6/addrconf.c:4206 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 INFO: task dhcpcd:4361 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:0 pid:4361 tgid:4361 ppid:4360 task_flags:0x400140 flags:0x00000000 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] devinet_ioctl+0x2b0/0x15bc net/ipv4/devinet.c:1120 inet_ioctl+0x334/0x460 net/ipv4/af_inet.c:1011 sock_do_ioctl+0x100/0x254 net/socket.c:1313 sock_ioctl+0x558/0x7e8 net/socket.c:1434 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:583 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task kworker/u8:0:4833 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:0 state:D stack:0 pid:4833 tgid:4833 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events_unbound linkwatch_event Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 linkwatch_event+0x14/0x68 net/core/link_watch.c:313 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 INFO: task syz-executor:7994 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:7994 tgid:7994 ppid:1 task_flags:0x400140 flags:0x00800011 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 ieee80211_register_hw+0x28e4/0x338c net/mac80211/main.c:1633 mac80211_hwsim_new_radio+0x2308/0x3fb8 drivers/net/wireless/virtual/mac80211_hwsim.c:6019 hwsim_new_radio_nl+0xa78/0x1604 drivers/net/wireless/virtual/mac80211_hwsim.c:6726 genl_family_rcv_msg_doit+0x1e4/0x2d8 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x444/0x620 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 genl_rcv+0x38/0x50 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz-executor:8071 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:8071 tgid:8071 ppid:1 task_flags:0x400140 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] inet_rtm_newaddr+0x364/0x10e8 net/ipv4/devinet.c:978 rtnetlink_rcv_msg+0x64c/0x984 net/core/rtnetlink.c:6995 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7022 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz-executor:8075 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:8075 tgid:8075 ppid:1 task_flags:0x400140 flags:0x00800011 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] inet_rtm_newaddr+0x364/0x10e8 net/ipv4/devinet.c:978 rtnetlink_rcv_msg+0x64c/0x984 net/core/rtnetlink.c:6995 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7022 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz-executor:8081 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:8081 tgid:8081 ppid:1 task_flags:0x400140 flags:0x00000001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock net/core/rtnetlink.c:80 [inline] rtnl_nets_lock+0x38/0x10c net/core/rtnetlink.c:341 rtnl_newlink+0x578/0x113c net/core/rtnetlink.c:4108 rtnetlink_rcv_msg+0x64c/0x984 net/core/rtnetlink.c:6995 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7022 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz-executor:8082 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:8082 tgid:8082 ppid:1 task_flags:0x400140 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] inet6_rtm_newaddr+0x474/0xa58 net/ipv6/addrconf.c:5039 rtnetlink_rcv_msg+0x64c/0x984 net/core/rtnetlink.c:6995 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7022 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task syz-executor:8335 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:8335 tgid:8335 ppid:1 task_flags:0x400140 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0xa4/0x140 kernel/sched/core.c:7282 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7339 __mutex_lock_common+0x98c/0x20f4 kernel/locking/mutex.c:726 __mutex_lock kernel/locking/mutex.c:820 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:873 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 rtnl_net_lock include/linux/rtnetlink.h:130 [inline] inet_rtm_newaddr+0x364/0x10e8 net/ipv4/devinet.c:978 rtnetlink_rcv_msg+0x64c/0x984 net/core/rtnetlink.c:6995 netlink_rcv_skb+0x22c/0x410 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7022 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg+0xc8/0x138 net/socket.c:802 __sys_sendto+0x254/0x338 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2268 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: __ll_sc_atomic64_fetch_or arch/arm64/include/asm/atomic_ll_sc.h:-1 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: arch_atomic64_fetch_or arch/arm64/include/asm/atomic.h:86 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: raw_atomic64_fetch_or include/linux/atomic/atomic-arch-fallback.h:3816 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: raw_atomic_long_fetch_or include/linux/atomic/atomic-long.h:1090 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: arch_test_and_set_bit include/asm-generic/bitops/atomic.h:42 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: test_and_set_bit include/asm-generic/bitops/instrumented-atomic.h:72 [inline] #0: ffff800088ac66e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x0/0x44 kernel/sched/sched.h:3869 3 locks held by kworker/0:2/856: #0: ffff0000c002b540 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800094b77be0 (rx_mode_work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/1:2/1051: #0: ffff0000c002b540 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800095427be0 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/u8:12/3828: #0: ffff0000cf0be140 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800099c57be0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by klogd/4294: 1 lock held by dhcpcd/4361: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by getty/4454: #0: ffff0000d00160a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009228b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x354/0xf84 drivers/tty/n_tty.c:2211 3 locks held by kworker/u8:0/4833: #0: ffff0000c004c140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800098437be0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 5 locks held by kworker/u8:4/4872: #0: ffff0000c004e140 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800095e37be0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b78428 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x100/0x6b8 net/core/net_namespace.c:673 #3: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 #4: ffff800088acbbb8 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x58/0x4f8 kernel/rcu/tree.c:3828 3 locks held by syz-executor/7994: #0: ffff800089bebf68 (cb_lock){++++}-{4:4}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:1217 #1: ffff800089bebda0 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffff800089bebda0 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffff800089bebda0 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0xec/0x620 net/netlink/genetlink.c:1208 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8071: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8075: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8081: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock+0x38/0x10c net/core/rtnetlink.c:341 1 lock held by syz-executor/8082: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8335: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8343: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8344: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8350: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8354: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/u8:8/8363: #0: ffff0000c004b940 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x640/0x173c kernel/workqueue.c:3276 #1: ffff800097f07be0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x173c kernel/workqueue.c:3276 #2: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8365: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8374: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8378: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8380: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8386: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8399: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8407: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8411: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8418: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by syz-executor/8419: #0: ffff800089b85900 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 =============================================