Extracting prog: 5m31.904357667s Minimizing prog: 2h15m12.017927917s Simplifying prog options: 0s Extracting C: 3m16.512483379s Simplifying C: 28m16.706201093s extracting reproducer from 35 programs first checking the prog from the crash report single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-close-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) r2 = socket$tipc(0x1e, 0x2, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) setsockopt$TIPC_GROUP_JOIN(r2, 0x10f, 0x87, &(0x7f0000000040)={0x41}, 0x10) r3 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r3, 0x10f, 0x87, &(0x7f0000000100)={0x41, 0x0, 0x2}, 0x1be) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) sendmmsg$inet(r6, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) close(r7) sendmsg$TIPC_CMD_SHOW_PORTS(r4, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r5, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: INFO: task hung in genl_rcv_msg single: successfully extracted reproducer found reproducer with 16 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-close-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) r2 = socket$tipc(0x1e, 0x2, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) setsockopt$TIPC_GROUP_JOIN(r2, 0x10f, 0x87, &(0x7f0000000040)={0x41}, 0x10) r3 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r3, 0x10f, 0x87, &(0x7f0000000100)={0x41, 0x0, 0x2}, 0x1be) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) sendmmsg$inet(r6, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) close(r7) sendmsg$TIPC_CMD_SHOW_PORTS(r4, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r5, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-close-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) r2 = socket$tipc(0x1e, 0x2, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) setsockopt$TIPC_GROUP_JOIN(r2, 0x10f, 0x87, &(0x7f0000000040)={0x41}, 0x10) r3 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r3, 0x10f, 0x87, &(0x7f0000000100)={0x41, 0x0, 0x2}, 0x1be) socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) sendmmsg$inet(r4, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) close(r5) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) r2 = socket$tipc(0x1e, 0x2, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) setsockopt$TIPC_GROUP_JOIN(r2, 0x10f, 0x87, &(0x7f0000000040)={0x41}, 0x10) r3 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r3, 0x10f, 0x87, &(0x7f0000000100)={0x41, 0x0, 0x2}, 0x1be) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r6, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r4, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r5, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: INFO: task hung in genl_rcv_msg 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$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) r2 = socket$tipc(0x1e, 0x2, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) setsockopt$TIPC_GROUP_JOIN(r2, 0x10f, 0x87, &(0x7f0000000040)={0x41}, 0x10) r3 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r3, 0x10f, 0x87, &(0x7f0000000100)={0x41, 0x0, 0x2}, 0x1be) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)) sendmsg$TIPC_CMD_SHOW_PORTS(r4, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r5, 0x1}, 0x1c}}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) r2 = socket$tipc(0x1e, 0x2, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) setsockopt$TIPC_GROUP_JOIN(r2, 0x10f, 0x87, &(0x7f0000000040)={0x41}, 0x10) r3 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r3, 0x10f, 0x87, &(0x7f0000000100)={0x41, 0x0, 0x2}, 0x1be) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) sendmmsg$inet(0xffffffffffffffff, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r4, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r5, 0x1}, 0x1c}}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$nl_generic-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) r2 = socket$tipc(0x1e, 0x2, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) setsockopt$TIPC_GROUP_JOIN(r2, 0x10f, 0x87, &(0x7f0000000040)={0x41}, 0x10) r3 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r3, 0x10f, 0x87, &(0x7f0000000100)={0x41, 0x0, 0x2}, 0x1be) r4 = socket$nl_generic(0x10, 0x3, 0x10) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r5, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r4, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, 0x0, 0x1}, 0x1c}}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) r2 = socket$tipc(0x1e, 0x2, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) setsockopt$TIPC_GROUP_JOIN(r2, 0x10f, 0x87, &(0x7f0000000040)={0x41}, 0x10) r3 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r3, 0x10f, 0x87, &(0x7f0000000100)={0x41, 0x0, 0x2}, 0x1be) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r5, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(0xffffffffffffffff, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r4, 0x1}, 0x1c}}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-setsockopt$TIPC_GROUP_JOIN-socket$tipc-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) r2 = socket$tipc(0x1e, 0x2, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) setsockopt$TIPC_GROUP_JOIN(r2, 0x10f, 0x87, &(0x7f0000000040)={0x41}, 0x10) socket$tipc(0x1e, 0x5, 0x0) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r5, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r4, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: INFO: task hung in genl_rcv_msg 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$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-setsockopt$TIPC_GROUP_JOIN-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) r2 = socket$tipc(0x1e, 0x2, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) setsockopt$TIPC_GROUP_JOIN(r2, 0x10f, 0x87, &(0x7f0000000040)={0x41}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r5, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r4, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: INFO: task hung in genl_rcv_msg 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$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) socket$tipc(0x1e, 0x2, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r4, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r2, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r3, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: INFO: task hung in genl_rcv_msg 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$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) socket$tipc(0x1e, 0x2, 0x0) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r4, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r2, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r3, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: lost connection to test machine suppressed program crash: lost connection to test machine 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$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) r1 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r4, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r2, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r3, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: INFO: task hung in genl_rcv_msg 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$tipc-setsockopt$TIPC_GROUP_JOIN-socket$tipc-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) socket$tipc(0x1e, 0x5, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-setsockopt$TIPC_GROUP_JOIN-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x2, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000280)={0x41}, 0x10) setsockopt$TIPC_GROUP_JOIN(0xffffffffffffffff, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: INFO: task hung in genl_rcv_msg 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$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, 0x0, 0x0) syz_emit_ethernet(0x22, &(0x7f00000013c0)={@local, @remote, @void, {@ipv4={0x800, @generic={{0x5, 0x4, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x84, 0x0, @remote, @dev={0xac, 0x14, 0x14, 0xe}}}}}}, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: INFO: task hung in genl_rcv_msg 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$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, 0x0) sendmmsg$inet(0xffffffffffffffff, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, 0x0, 0x0, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r2, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, 0x0, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r2, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, 0x0}, 0x0) close(0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r2, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={0x0}}, 0x0) close(0x4) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close program crashed: INFO: task hung in genl_rcv_msg simplifying C reproducer testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close program crashed: INFO: task hung in genl_rcv_msg testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close program crashed: INFO: task hung in genl_rcv_msg testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close program crashed: INFO: task hung in genl_rcv_msg testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close program crashed: INFO: task hung in genl_rcv_msg testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close program crashed: INFO: task hung in genl_rcv_msg testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: INFO: task hung in genl_rcv_msg validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: lost connection to test machine suppressed program crash: lost connection to test machine validation run: crashed=false testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: lost connection to test machine suppressed program crash: lost connection to test machine validation run: crashed=false testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: INFO: task hung in genl_rcv_msg validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-syz_emit_ethernet-socket$nl_generic-syz_genetlink_get_family_id$tipc-socketpair$tipc-sendmmsg$inet-sendmsg$TIPC_CMD_SHOW_PORTS-close detailed listing: executing program 0: socket$tipc(0x1e, 0x2, 0x0) r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000900)={0x41, 0x4}, 0x10) syz_emit_ethernet(0x0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000001600), 0xffffffffffffffff) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmmsg$inet(r3, &(0x7f0000001540)=[{{0x0, 0xfffffffffffffda1, 0x0}}], 0x40001b6, 0x0) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000001640)={0x1c, r2, 0x1}, 0x1c}}, 0x0) close(0x4) program crashed: INFO: task hung in genl_rcv_msg validation run: crashed=true reproducing took 3h14m41.481358781s repro crashed as (corrupted=false): INFO: task syz.2.196:6634 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.196 state:D stack:28248 pid:6634 tgid:6632 ppid:5953 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x149b/0x4fd0 kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0x165/0x360 kernel/sched/core.c:6960 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 __sys_sendto+0x3bd/0x520 net/socket.c:2206 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2209 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f775fd915dc RSP: 002b:00007f7760c17ec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f7760c17fc0 RCX: 00007f775fd915dc RDX: 0000000000000020 RSI: 00007f7760c18010 RDI: 0000000000000006 RBP: 0000000000000000 R08: 00007f7760c17f14 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006 R13: 00007f7760c17f68 R14: 00007f7760c18010 R15: 0000000000000000 INFO: task syz.0.197:6636 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.197 state:D stack:28272 pid:6636 tgid:6635 ppid:5951 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x149b/0x4fd0 kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0x165/0x360 kernel/sched/core.c:6960 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 __sys_sendto+0x3bd/0x520 net/socket.c:2206 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2209 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdb651915dc RSP: 002b:00007fdb6605bec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fdb6605bfc0 RCX: 00007fdb651915dc RDX: 0000000000000020 RSI: 00007fdb6605c010 RDI: 0000000000000006 RBP: 0000000000000000 R08: 00007fdb6605bf14 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006 R13: 00007fdb6605bf68 R14: 00007fdb6605c010 R15: 0000000000000000 INFO: task syz.4.198:6641 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.198 state:D stack:28280 pid:6641 tgid:6639 ppid:5963 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x149b/0x4fd0 kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0x165/0x360 kernel/sched/core.c:6960 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 __sys_sendto+0x3bd/0x520 net/socket.c:2206 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2209 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f44193915dc RSP: 002b:00007f441a1e1ec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f441a1e1fc0 RCX: 00007f44193915dc RDX: 0000000000000020 RSI: 00007f441a1e2010 RDI: 0000000000000006 RBP: 0000000000000000 R08: 00007f441a1e1f14 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006 R13: 00007f441a1e1f68 R14: 00007f441a1e2010 R15: 0000000000000000 INFO: task syz.3.199:6644 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.199 state:D stack:27368 pid:6644 tgid:6643 ppid:5960 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x149b/0x4fd0 kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0x165/0x360 kernel/sched/core.c:6960 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 __sys_sendto+0x3bd/0x520 net/socket.c:2206 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2209 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc1695915dc RSP: 002b:00007fc16a375ec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fc16a375fc0 RCX: 00007fc1695915dc RDX: 0000000000000020 RSI: 00007fc16a376010 RDI: 0000000000000006 RBP: 0000000000000000 R08: 00007fc16a375f14 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006 R13: 00007fc16a375f68 R14: 00007fc16a376010 R15: 0000000000000000 Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffffffff8df41aa0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8df41aa0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline] #0: ffffffff8df41aa0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775 2 locks held by getty/5586: #0: ffff88814dd750a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x449/0x1460 drivers/tty/n_tty.c:2211 3 locks held by syz.1.193/6631: 2 locks held by syz.2.196/6634: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz.0.197/6636: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz.4.198/6641: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz.3.199/6644: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6663: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6665: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6667: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6669: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6671: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6720: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6725: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6726: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6729: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6735: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6785: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6789: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6790: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6792: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6796: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline] watchdog+0xf95/0xfe0 kernel/hung_task.c:515 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 6631 Comm: syz.1.193 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:check_kcov_mode kernel/kcov.c:194 [inline] RIP: 0010:write_comp_data kernel/kcov.c:246 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x37/0x90 kernel/kcov.c:314 Code: 08 10 80 92 65 8b 0d 18 14 bf 10 81 e1 00 01 ff 00 74 11 81 f9 00 01 00 00 75 5b 83 ba 6c 16 00 00 00 74 52 8b 8a 48 16 00 00 <83> f9 03 75 47 48 8b 8a 50 16 00 00 44 8b 8a 4c 16 00 00 49 c1 e1 RSP: 0018:ffffc90005586ab8 EFLAGS: 00000246 RAX: ffffffff8af7af77 RBX: 00000000ffffffea RCX: 0000000000000000 RDX: ffff88802ac85b80 RSI: 00000000ffffffea RDI: 000000000000000f RBP: ffffc90005586d50 R08: ffff88802ac85b80 R09: 0000000000000004 R10: 0000000000000003 R11: 0000000000000000 R12: ffff88807bad5c80 R13: 1ffff92000ab0d6c R14: ffffc90005586dd8 R15: dffffc0000000000 FS: 00007fba106476c0(0000) GS:ffff888125f1f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563b5fa0fa38 CR3: 0000000054afc000 CR4: 00000000003526f0 Call Trace: nlmsg_ok include/net/netlink.h:667 [inline] __tipc_nl_compat_dumpit+0x437/0xb70 net/tipc/netlink_compat.c:226 tipc_nl_compat_publ_dump net/tipc/netlink_compat.c:1032 [inline] tipc_nl_compat_sk_dump+0x625/0x810 net/tipc/netlink_compat.c:1084 __tipc_nl_compat_dumpit+0x57b/0xb70 net/tipc/netlink_compat.c:235 tipc_nl_compat_dumpit+0x566/0x7b0 net/tipc/netlink_compat.c:318 tipc_nl_compat_handle net/tipc/netlink_compat.c:-1 [inline] tipc_nl_compat_recv+0x802/0xbe0 net/tipc/netlink_compat.c:1321 genl_family_rcv_msg_doit+0x215/0x300 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x60e/0x790 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 ____sys_sendmsg+0x505/0x820 net/socket.c:2592 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2681 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fba0f78f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fba10647038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fba0f9e6090 RCX: 00007fba0f78f749 RDX: 0000000000000000 RSI: 00002000000016c0 RDI: 0000000000000005 RBP: 00007fba0f813f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fba0f9e6128 R14: 00007fba0f9e6090 R15: 00007ffc720d20a8 final repro crashed as (corrupted=false): INFO: task syz.2.196:6634 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.196 state:D stack:28248 pid:6634 tgid:6632 ppid:5953 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x149b/0x4fd0 kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0x165/0x360 kernel/sched/core.c:6960 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 __sys_sendto+0x3bd/0x520 net/socket.c:2206 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2209 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f775fd915dc RSP: 002b:00007f7760c17ec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f7760c17fc0 RCX: 00007f775fd915dc RDX: 0000000000000020 RSI: 00007f7760c18010 RDI: 0000000000000006 RBP: 0000000000000000 R08: 00007f7760c17f14 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006 R13: 00007f7760c17f68 R14: 00007f7760c18010 R15: 0000000000000000 INFO: task syz.0.197:6636 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.197 state:D stack:28272 pid:6636 tgid:6635 ppid:5951 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x149b/0x4fd0 kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0x165/0x360 kernel/sched/core.c:6960 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 __sys_sendto+0x3bd/0x520 net/socket.c:2206 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2209 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdb651915dc RSP: 002b:00007fdb6605bec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fdb6605bfc0 RCX: 00007fdb651915dc RDX: 0000000000000020 RSI: 00007fdb6605c010 RDI: 0000000000000006 RBP: 0000000000000000 R08: 00007fdb6605bf14 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006 R13: 00007fdb6605bf68 R14: 00007fdb6605c010 R15: 0000000000000000 INFO: task syz.4.198:6641 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.198 state:D stack:28280 pid:6641 tgid:6639 ppid:5963 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x149b/0x4fd0 kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0x165/0x360 kernel/sched/core.c:6960 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 __sys_sendto+0x3bd/0x520 net/socket.c:2206 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2209 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f44193915dc RSP: 002b:00007f441a1e1ec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f441a1e1fc0 RCX: 00007f44193915dc RDX: 0000000000000020 RSI: 00007f441a1e2010 RDI: 0000000000000006 RBP: 0000000000000000 R08: 00007f441a1e1f14 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006 R13: 00007f441a1e1f68 R14: 00007f441a1e2010 R15: 0000000000000000 INFO: task syz.3.199:6644 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.199 state:D stack:27368 pid:6644 tgid:6643 ppid:5960 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x149b/0x4fd0 kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0x165/0x360 kernel/sched/core.c:6960 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 __sys_sendto+0x3bd/0x520 net/socket.c:2206 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2209 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc1695915dc RSP: 002b:00007fc16a375ec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fc16a375fc0 RCX: 00007fc1695915dc RDX: 0000000000000020 RSI: 00007fc16a376010 RDI: 0000000000000006 RBP: 0000000000000000 R08: 00007fc16a375f14 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006 R13: 00007fc16a375f68 R14: 00007fc16a376010 R15: 0000000000000000 Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffffffff8df41aa0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8df41aa0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline] #0: ffffffff8df41aa0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775 2 locks held by getty/5586: #0: ffff88814dd750a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x449/0x1460 drivers/tty/n_tty.c:2211 3 locks held by syz.1.193/6631: 2 locks held by syz.2.196/6634: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz.0.197/6636: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz.4.198/6641: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz.3.199/6644: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6663: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6665: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6667: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6669: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6671: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6720: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6725: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6726: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6729: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6735: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6785: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6789: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6790: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6792: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 2 locks held by syz-executor/6796: #0: ffffffff8f379ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f3798c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790 net/netlink/genetlink.c:1209 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline] watchdog+0xf95/0xfe0 kernel/hung_task.c:515 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 6631 Comm: syz.1.193 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:check_kcov_mode kernel/kcov.c:194 [inline] RIP: 0010:write_comp_data kernel/kcov.c:246 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x37/0x90 kernel/kcov.c:314 Code: 08 10 80 92 65 8b 0d 18 14 bf 10 81 e1 00 01 ff 00 74 11 81 f9 00 01 00 00 75 5b 83 ba 6c 16 00 00 00 74 52 8b 8a 48 16 00 00 <83> f9 03 75 47 48 8b 8a 50 16 00 00 44 8b 8a 4c 16 00 00 49 c1 e1 RSP: 0018:ffffc90005586ab8 EFLAGS: 00000246 RAX: ffffffff8af7af77 RBX: 00000000ffffffea RCX: 0000000000000000 RDX: ffff88802ac85b80 RSI: 00000000ffffffea RDI: 000000000000000f RBP: ffffc90005586d50 R08: ffff88802ac85b80 R09: 0000000000000004 R10: 0000000000000003 R11: 0000000000000000 R12: ffff88807bad5c80 R13: 1ffff92000ab0d6c R14: ffffc90005586dd8 R15: dffffc0000000000 FS: 00007fba106476c0(0000) GS:ffff888125f1f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563b5fa0fa38 CR3: 0000000054afc000 CR4: 00000000003526f0 Call Trace: nlmsg_ok include/net/netlink.h:667 [inline] __tipc_nl_compat_dumpit+0x437/0xb70 net/tipc/netlink_compat.c:226 tipc_nl_compat_publ_dump net/tipc/netlink_compat.c:1032 [inline] tipc_nl_compat_sk_dump+0x625/0x810 net/tipc/netlink_compat.c:1084 __tipc_nl_compat_dumpit+0x57b/0xb70 net/tipc/netlink_compat.c:235 tipc_nl_compat_dumpit+0x566/0x7b0 net/tipc/netlink_compat.c:318 tipc_nl_compat_handle net/tipc/netlink_compat.c:-1 [inline] tipc_nl_compat_recv+0x802/0xbe0 net/tipc/netlink_compat.c:1321 genl_family_rcv_msg_doit+0x215/0x300 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x60e/0x790 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 ____sys_sendmsg+0x505/0x820 net/socket.c:2592 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2681 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fba0f78f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fba10647038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fba0f9e6090 RCX: 00007fba0f78f749 RDX: 0000000000000000 RSI: 00002000000016c0 RDI: 0000000000000005 RBP: 00007fba0f813f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fba0f9e6128 R14: 00007fba0f9e6090 R15: 00007ffc720d20a8