Extracting prog: 5m35.312906278s Minimizing prog: 1h55m15.248177214s Simplifying prog options: 18m15.759435085s Extracting C: 5m9.017635553s Simplifying C: 0s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$nbd-socket$nl_route-socket-getsockname$packet-socket$nl_route-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$nl_route-socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x1, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000000)=0x14) r3 = socket$nl_route(0x10, 0x3, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f00000001c0)={'batadv0\x00', 0x0}) sendmsg$nl_route(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x64, 0x10, 0x403, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x15214}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @vlan={{0x9}, {0x10, 0x2, 0x0, 0x1, [@IFLA_VLAN_EGRESS_QOS={0x4}, @IFLA_VLAN_ID={0x6}]}}}, @IFLA_LINK={0x8, 0x5, r2}, @IFLA_MASTER={0x8, 0xa, r4}, @IFLA_ADDRESS={0xa, 0x1, @dev={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, @IFLA_MTU={0x8, 0x4, 0x8}]}, 0x64}, 0x1, 0x0, 0x0, 0x1}, 0x4000000) r5 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r5, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r5, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$nbd-socket$nl_route-socket-getsockname$packet-socket$nl_route-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$nl_route-socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x1, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000000)=0x14) r3 = socket$nl_route(0x10, 0x3, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f00000001c0)={'batadv0\x00', 0x0}) sendmsg$nl_route(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x64, 0x10, 0x403, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x15214}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @vlan={{0x9}, {0x10, 0x2, 0x0, 0x1, [@IFLA_VLAN_EGRESS_QOS={0x4}, @IFLA_VLAN_ID={0x6}]}}}, @IFLA_LINK={0x8, 0x5, r2}, @IFLA_MASTER={0x8, 0xa, r4}, @IFLA_ADDRESS={0xa, 0x1, @dev={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, @IFLA_MTU={0x8, 0x4, 0x8}]}, 0x64}, 0x1, 0x0, 0x0, 0x1}, 0x4000000) r5 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r5, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r5, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program crashed: unregister_netdevice: waiting for DEV to become free single: successfully extracted reproducer found reproducer with 10 syscalls minimizing guilty program testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$nbd-socket$nl_route-socket-getsockname$packet-socket$nl_route-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$nl_route-socket$nl_route-sendmsg$nl_route detailed listing: executing program 0: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x1, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000000)=0x14) r3 = socket$nl_route(0x10, 0x3, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f00000001c0)={'batadv0\x00', 0x0}) sendmsg$nl_route(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x64, 0x10, 0x403, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x15214}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @vlan={{0x9}, {0x10, 0x2, 0x0, 0x1, [@IFLA_VLAN_EGRESS_QOS={0x4}, @IFLA_VLAN_ID={0x6}]}}}, @IFLA_LINK={0x8, 0x5, r2}, @IFLA_MASTER={0x8, 0xa, r4}, @IFLA_ADDRESS={0xa, 0x1, @dev={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, @IFLA_MTU={0x8, 0x4, 0x8}]}, 0x64}, 0x1, 0x0, 0x0, 0x1}, 0x4000000) r5 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r5, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$nbd-socket$nl_route-socket-getsockname$packet-socket$nl_route-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$nl_route-socket$nl_route-sendmsg$netlink detailed listing: executing program 0: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x1, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000000)=0x14) r3 = socket$nl_route(0x10, 0x3, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f00000001c0)={'batadv0\x00', 0x0}) sendmsg$nl_route(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x64, 0x10, 0x403, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x15214}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @vlan={{0x9}, {0x10, 0x2, 0x0, 0x1, [@IFLA_VLAN_EGRESS_QOS={0x4}, @IFLA_VLAN_ID={0x6}]}}}, @IFLA_LINK={0x8, 0x5, r2}, @IFLA_MASTER={0x8, 0xa, r4}, @IFLA_ADDRESS={0xa, 0x1, @dev={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, @IFLA_MTU={0x8, 0x4, 0x8}]}, 0x64}, 0x1, 0x0, 0x0, 0x1}, 0x4000000) r5 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$netlink(r5, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$nbd-socket$nl_route-socket-getsockname$packet-socket$nl_route-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x1, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000000)=0x14) r3 = socket$nl_route(0x10, 0x3, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f00000001c0)={'batadv0\x00', 0x0}) sendmsg$nl_route(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x64, 0x10, 0x403, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x15214}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @vlan={{0x9}, {0x10, 0x2, 0x0, 0x1, [@IFLA_VLAN_EGRESS_QOS={0x4}, @IFLA_VLAN_ID={0x6}]}}}, @IFLA_LINK={0x8, 0x5, r2}, @IFLA_MASTER={0x8, 0xa, r4}, @IFLA_ADDRESS={0xa, 0x1, @dev={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, @IFLA_MTU={0x8, 0x4, 0x8}]}, 0x64}, 0x1, 0x0, 0x0, 0x1}, 0x4000000) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(0xffffffffffffffff, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$nbd-socket$nl_route-socket-getsockname$packet-socket$nl_route-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) socket$nl_route(0x10, 0x3, 0x0) r0 = socket(0x1, 0x803, 0x0) getsockname$packet(r0, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000000)=0x14) r1 = socket$nl_route(0x10, 0x3, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f00000001c0)) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r2, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program crashed: unregister_netdevice: waiting for DEV to become free testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$nbd-socket$nl_route-socket-getsockname$packet-socket$nl_route-socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) socket$nl_route(0x10, 0x3, 0x0) r0 = socket(0x1, 0x803, 0x0) getsockname$packet(r0, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000000)=0x14) socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r1, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r1, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program crashed: unregister_netdevice: waiting for DEV to become free testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$nbd-socket$nl_route-socket-getsockname$packet-socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) socket$nl_route(0x10, 0x3, 0x0) r0 = socket(0x1, 0x803, 0x0) getsockname$packet(r0, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000000)=0x14) r1 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r1, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r1, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program crashed: unregister_netdevice: waiting for DEV to become free testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$nbd-socket$nl_route-socket-socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) socket$nl_route(0x10, 0x3, 0x0) socket(0x1, 0x803, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program crashed: unregister_netdevice: waiting for DEV to become free testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$nbd-socket$nl_route-socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) socket$nl_route(0x10, 0x3, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program crashed: unregister_netdevice: waiting for DEV to become free testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$nbd-socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program crashed: unregister_netdevice: waiting for DEV to become free testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program crashed: unregister_netdevice: waiting for DEV to become free testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, 0x0, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, 0x0}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={0x0, 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r0, 0x0, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, 0x0}, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{0x0}], 0x1}, 0x0) program did not crash testing program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x10, 0x10, 0x1}, 0x10}], 0x1}, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=6m23.082679083s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink program crashed: no output from test machine a never seen crash title: no output from test machine, ignore simplifying guilty program options testing program (duration=6m23.082679083s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program crashed: unregister_netdevice: waiting for DEV to become free extracting C reproducer testing compiled C program (duration=6m23.082679083s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing program (duration=6m23.082679083s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink detailed listing: executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000001c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000000008001b"], 0x28}}, 0x0) sendmsg$netlink(r0, &(0x7f0000006440)={0x0, 0x0, &(0x7f00000063c0)=[{&(0x7f0000000600)={0x40, 0x10, 0x1, 0x0, 0x0, "", [@typed={0x8, 0x0, 0x0, 0x0, @u32}, @typed={0x8, 0x0, 0x0, 0x0, @uid}, @typed={0x14, 0x1b, 0x0, 0x0, @ipv6=@loopback={0x21}}, @typed={0xc, 0x0, 0x0, 0x0, @u64}]}, 0x40}], 0x1}, 0x0) program crashed: unregister_netdevice: waiting for DEV to become free extracting C reproducer testing compiled C program (duration=6m23.082679083s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-sendmsg$netlink program crashed: no output from test machine a never seen crash title: no output from test machine, ignore reproducing took 2h24m12.312864877s repro crashed as (corrupted=false): unregister_netdevice: waiting for syz_tun to become free. Usage count = 2006 ref_tracker: syz_tun@ffff888035498620 has 493/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_tracker_alloc include/linux/netdevice.h:4074 [inline] netdev_get_by_index+0x7c/0xb0 net/core/dev.c:916 fib6_nh_init+0x792/0x1da0 net/ipv6/route.c:3543 ip6_route_info_create+0x1073/0x1910 net/ipv6/route.c:3809 ip6_route_add+0x26/0x1c0 net/ipv6/route.c:3853 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3319 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3448 addrconf_dev_config net/ipv6/addrconf.c:3494 [inline] addrconf_init_auto_addrs+0x446/0x820 net/ipv6/addrconf.c:3572 addrconf_notify+0xe91/0x19c0 net/ipv6/addrconf.c:3745 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] __dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8884 dev_change_flags+0x10c/0x160 net/core/dev.c:8922 do_setlink+0x1b0e/0x41c0 net/core/rtnetlink.c:2929 rtnl_group_changelink net/core/rtnetlink.c:3476 [inline] __rtnl_newlink+0xe11/0x1920 net/core/rtnetlink.c:3735 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772 ref_tracker: syz_tun@ffff888035498620 has 493/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_tracker_alloc include/linux/netdevice.h:4074 [inline] netdev_get_by_index+0x7c/0xb0 net/core/dev.c:916 fib6_nh_init+0x792/0x1da0 net/ipv6/route.c:3543 ip6_route_info_create+0x1073/0x1910 net/ipv6/route.c:3809 ip6_route_add+0x26/0x1c0 net/ipv6/route.c:3853 addrconf_add_mroute+0x1de/0x350 net/ipv6/addrconf.c:2550 addrconf_add_dev+0x14e/0x1c0 net/ipv6/addrconf.c:2568 addrconf_dev_config net/ipv6/addrconf.c:3484 [inline] addrconf_init_auto_addrs+0x380/0x820 net/ipv6/addrconf.c:3572 addrconf_notify+0xe91/0x19c0 net/ipv6/addrconf.c:3745 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] __dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8884 dev_change_flags+0x10c/0x160 net/core/dev.c:8922 do_setlink+0x1b0e/0x41c0 net/core/rtnetlink.c:2929 rtnl_group_changelink net/core/rtnetlink.c:3476 [inline] __rtnl_newlink+0xe11/0x1920 net/core/rtnetlink.c:3735 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675 ref_tracker: syz_tun@ffff888035498620 has 493/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_hold include/linux/netdevice.h:4091 [inline] netdev_hold include/linux/netdevice.h:4086 [inline] fib_check_nh_nongw net/ipv4/fib_semantics.c:1238 [inline] fib_check_nh+0x271/0x620 net/ipv4/fib_semantics.c:1258 fib_create_info+0x23c9/0x4d10 net/ipv4/fib_semantics.c:1556 fib_table_insert+0x1d7/0x1d70 net/ipv4/fib_trie.c:1237 fib_magic+0x4d6/0x5c0 net/ipv4/fib_frontend.c:1104 fib_add_ifaddr+0x4c0/0x560 net/ipv4/fib_frontend.c:1148 fib_netdev_event+0x38a/0x710 net/ipv4/fib_frontend.c:1486 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] __dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8884 dev_change_flags+0x10c/0x160 net/core/dev.c:8922 do_setlink+0x1b0e/0x41c0 net/core/rtnetlink.c:2929 rtnl_group_changelink net/core/rtnetlink.c:3476 [inline] __rtnl_newlink+0xe11/0x1920 net/core/rtnetlink.c:3735 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2541 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1347 ref_tracker: syz_tun@ffff888035498620 has 493/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_hold include/linux/netdevice.h:4091 [inline] netdev_hold include/linux/netdevice.h:4086 [inline] fib_check_nh_nongw net/ipv4/fib_semantics.c:1238 [inline] fib_check_nh+0x271/0x620 net/ipv4/fib_semantics.c:1258 fib_create_info+0x23c9/0x4d10 net/ipv4/fib_semantics.c:1556 fib_table_insert+0x1d7/0x1d70 net/ipv4/fib_trie.c:1237 fib_magic+0x4d6/0x5c0 net/ipv4/fib_frontend.c:1104 fib_add_ifaddr+0x393/0x560 net/ipv4/fib_frontend.c:1141 fib_netdev_event+0x38a/0x710 net/ipv4/fib_frontend.c:1486 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] __dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8884 dev_change_flags+0x10c/0x160 net/core/dev.c:8922 do_setlink+0x1b0e/0x41c0 net/core/rtnetlink.c:2929 rtnl_group_changelink net/core/rtnetlink.c:3476 [inline] __rtnl_newlink+0xe11/0x1920 net/core/rtnetlink.c:3735 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2541 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1347 ref_tracker: syz_tun@ffff888035498620 has 32/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_tracker_alloc include/linux/netdevice.h:4074 [inline] netdev_get_by_index+0x7c/0xb0 net/core/dev.c:916 fib6_nh_init+0x792/0x1da0 net/ipv6/route.c:3543 ip6_route_info_create+0x1073/0x1910 net/ipv6/route.c:3809 addrconf_f6i_alloc+0x393/0x670 net/ipv6/route.c:4588 ipv6_add_addr+0x538/0x2060 net/ipv6/addrconf.c:1120 addrconf_add_linklocal+0x2a6/0x620 net/ipv6/addrconf.c:3317 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3448 addrconf_dev_config net/ipv6/addrconf.c:3494 [inline] addrconf_init_auto_addrs+0x446/0x820 net/ipv6/addrconf.c:3572 addrconf_notify+0xe91/0x19c0 net/ipv6/addrconf.c:3745 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] __dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8884 dev_change_flags+0x10c/0x160 net/core/dev.c:8922 do_setlink+0x1b0e/0x41c0 net/core/rtnetlink.c:2929 rtnl_group_changelink net/core/rtnetlink.c:3476 [inline] __rtnl_newlink+0xe11/0x1920 net/core/rtnetlink.c:3735 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772 ref_tracker: syz_tun@ffff888035498620 has 1/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_tracker_alloc include/linux/netdevice.h:4074 [inline] fib_create_info+0x3290/0x4d10 net/ipv4/fib_semantics.c:1550 fib_table_insert+0x1d7/0x1d70 net/ipv4/fib_trie.c:1237 fib_magic+0x4d6/0x5c0 net/ipv4/fib_frontend.c:1104 fib_add_ifaddr+0x174/0x560 net/ipv4/fib_frontend.c:1126 fib_inetaddr_event+0x174/0x2c0 net/ipv4/fib_frontend.c:1440 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 blocking_notifier_call_chain kernel/notifier.c:388 [inline] blocking_notifier_call_chain+0x69/0xa0 kernel/notifier.c:376 __inet_insert_ifa+0x93f/0xc30 net/ipv4/devinet.c:586 inet_rtm_newaddr+0x565/0xae0 net/ipv4/devinet.c:997 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2541 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] __sys_sendto+0x488/0x4f0 net/socket.c:2195 __do_sys_sendto net/socket.c:2202 [inline] __se_sys_sendto net/socket.c:2198 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2198 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 final repro crashed as (corrupted=false): unregister_netdevice: waiting for syz_tun to become free. Usage count = 2006 ref_tracker: syz_tun@ffff888035498620 has 493/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_tracker_alloc include/linux/netdevice.h:4074 [inline] netdev_get_by_index+0x7c/0xb0 net/core/dev.c:916 fib6_nh_init+0x792/0x1da0 net/ipv6/route.c:3543 ip6_route_info_create+0x1073/0x1910 net/ipv6/route.c:3809 ip6_route_add+0x26/0x1c0 net/ipv6/route.c:3853 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3319 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3448 addrconf_dev_config net/ipv6/addrconf.c:3494 [inline] addrconf_init_auto_addrs+0x446/0x820 net/ipv6/addrconf.c:3572 addrconf_notify+0xe91/0x19c0 net/ipv6/addrconf.c:3745 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] __dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8884 dev_change_flags+0x10c/0x160 net/core/dev.c:8922 do_setlink+0x1b0e/0x41c0 net/core/rtnetlink.c:2929 rtnl_group_changelink net/core/rtnetlink.c:3476 [inline] __rtnl_newlink+0xe11/0x1920 net/core/rtnetlink.c:3735 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772 ref_tracker: syz_tun@ffff888035498620 has 493/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_tracker_alloc include/linux/netdevice.h:4074 [inline] netdev_get_by_index+0x7c/0xb0 net/core/dev.c:916 fib6_nh_init+0x792/0x1da0 net/ipv6/route.c:3543 ip6_route_info_create+0x1073/0x1910 net/ipv6/route.c:3809 ip6_route_add+0x26/0x1c0 net/ipv6/route.c:3853 addrconf_add_mroute+0x1de/0x350 net/ipv6/addrconf.c:2550 addrconf_add_dev+0x14e/0x1c0 net/ipv6/addrconf.c:2568 addrconf_dev_config net/ipv6/addrconf.c:3484 [inline] addrconf_init_auto_addrs+0x380/0x820 net/ipv6/addrconf.c:3572 addrconf_notify+0xe91/0x19c0 net/ipv6/addrconf.c:3745 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] __dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8884 dev_change_flags+0x10c/0x160 net/core/dev.c:8922 do_setlink+0x1b0e/0x41c0 net/core/rtnetlink.c:2929 rtnl_group_changelink net/core/rtnetlink.c:3476 [inline] __rtnl_newlink+0xe11/0x1920 net/core/rtnetlink.c:3735 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675 ref_tracker: syz_tun@ffff888035498620 has 493/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_hold include/linux/netdevice.h:4091 [inline] netdev_hold include/linux/netdevice.h:4086 [inline] fib_check_nh_nongw net/ipv4/fib_semantics.c:1238 [inline] fib_check_nh+0x271/0x620 net/ipv4/fib_semantics.c:1258 fib_create_info+0x23c9/0x4d10 net/ipv4/fib_semantics.c:1556 fib_table_insert+0x1d7/0x1d70 net/ipv4/fib_trie.c:1237 fib_magic+0x4d6/0x5c0 net/ipv4/fib_frontend.c:1104 fib_add_ifaddr+0x4c0/0x560 net/ipv4/fib_frontend.c:1148 fib_netdev_event+0x38a/0x710 net/ipv4/fib_frontend.c:1486 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] __dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8884 dev_change_flags+0x10c/0x160 net/core/dev.c:8922 do_setlink+0x1b0e/0x41c0 net/core/rtnetlink.c:2929 rtnl_group_changelink net/core/rtnetlink.c:3476 [inline] __rtnl_newlink+0xe11/0x1920 net/core/rtnetlink.c:3735 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2541 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1347 ref_tracker: syz_tun@ffff888035498620 has 493/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_hold include/linux/netdevice.h:4091 [inline] netdev_hold include/linux/netdevice.h:4086 [inline] fib_check_nh_nongw net/ipv4/fib_semantics.c:1238 [inline] fib_check_nh+0x271/0x620 net/ipv4/fib_semantics.c:1258 fib_create_info+0x23c9/0x4d10 net/ipv4/fib_semantics.c:1556 fib_table_insert+0x1d7/0x1d70 net/ipv4/fib_trie.c:1237 fib_magic+0x4d6/0x5c0 net/ipv4/fib_frontend.c:1104 fib_add_ifaddr+0x393/0x560 net/ipv4/fib_frontend.c:1141 fib_netdev_event+0x38a/0x710 net/ipv4/fib_frontend.c:1486 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] __dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8884 dev_change_flags+0x10c/0x160 net/core/dev.c:8922 do_setlink+0x1b0e/0x41c0 net/core/rtnetlink.c:2929 rtnl_group_changelink net/core/rtnetlink.c:3476 [inline] __rtnl_newlink+0xe11/0x1920 net/core/rtnetlink.c:3735 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2541 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1347 ref_tracker: syz_tun@ffff888035498620 has 32/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_tracker_alloc include/linux/netdevice.h:4074 [inline] netdev_get_by_index+0x7c/0xb0 net/core/dev.c:916 fib6_nh_init+0x792/0x1da0 net/ipv6/route.c:3543 ip6_route_info_create+0x1073/0x1910 net/ipv6/route.c:3809 addrconf_f6i_alloc+0x393/0x670 net/ipv6/route.c:4588 ipv6_add_addr+0x538/0x2060 net/ipv6/addrconf.c:1120 addrconf_add_linklocal+0x2a6/0x620 net/ipv6/addrconf.c:3317 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3448 addrconf_dev_config net/ipv6/addrconf.c:3494 [inline] addrconf_init_auto_addrs+0x446/0x820 net/ipv6/addrconf.c:3572 addrconf_notify+0xe91/0x19c0 net/ipv6/addrconf.c:3745 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] __dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8884 dev_change_flags+0x10c/0x160 net/core/dev.c:8922 do_setlink+0x1b0e/0x41c0 net/core/rtnetlink.c:2929 rtnl_group_changelink net/core/rtnetlink.c:3476 [inline] __rtnl_newlink+0xe11/0x1920 net/core/rtnetlink.c:3735 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772 ref_tracker: syz_tun@ffff888035498620 has 1/2005 users at __netdev_tracker_alloc include/linux/netdevice.h:4062 [inline] netdev_tracker_alloc include/linux/netdevice.h:4074 [inline] fib_create_info+0x3290/0x4d10 net/ipv4/fib_semantics.c:1550 fib_table_insert+0x1d7/0x1d70 net/ipv4/fib_trie.c:1237 fib_magic+0x4d6/0x5c0 net/ipv4/fib_frontend.c:1104 fib_add_ifaddr+0x174/0x560 net/ipv4/fib_frontend.c:1126 fib_inetaddr_event+0x174/0x2c0 net/ipv4/fib_frontend.c:1440 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 blocking_notifier_call_chain kernel/notifier.c:388 [inline] blocking_notifier_call_chain+0x69/0xa0 kernel/notifier.c:376 __inet_insert_ifa+0x93f/0xc30 net/ipv4/devinet.c:586 inet_rtm_newaddr+0x565/0xae0 net/ipv4/devinet.c:997 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2541 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] __sys_sendto+0x488/0x4f0 net/socket.c:2195 __do_sys_sendto net/socket.c:2202 [inline] __se_sys_sendto net/socket.c:2198 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2198 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83