Extracting prog: 6m13.585919431s Minimizing prog: 2h16m19.303515187s Simplifying prog options: 0s Extracting C: 3m15.132879288s Simplifying C: 32m6.196386727s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program crashed: INFO: task hung in genl_rcv_msg single: successfully extracted reproducer found reproducer with 8 syscalls minimizing guilty program testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, 0x0, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r3, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) socket(0x1e, 0x4, 0x0) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r3, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) setsockopt$packet_tx_ring(0xffffffffffffffff, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r3, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) r1 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r1, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r3, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$tipc(r0, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r1 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r1, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r3, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: recvmsg(0xffffffffffffffff, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r0 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r0, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r2, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, 0x0) recvmsg(0xffffffffffffffff, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r0 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r0, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r2, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, 0x0, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0xf8}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, 0x0}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{0x0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, 0x0, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)=[{0x0}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)=[{&(0x7f0000000140)}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, 0x0, 0x0) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)={0x1c, r4, 0x1}, 0x1c}}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, 0x0, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0) program did not crash testing program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS detailed listing: executing program 0: socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg(r0, &(0x7f0000000500)={&(0x7f0000000040)=@hci, 0x80, &(0x7f0000000100)=[{&(0x7f0000000400)=""/248, 0x200105d0}], 0x1}, 0x1f00) sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0xfffffff5, &(0x7f0000000200)=[{&(0x7f0000000140)="a2", 0xfffffdef}], 0x1}, 0x0) r2 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r2, 0x10f, 0x87, &(0x7f0000000040)=@req={0x3fc, 0x0, 0x0, 0x5}, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$tipc(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_CMD_SHOW_PORTS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={0x0}}, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS program crashed: INFO: task hung in genl_rcv_msg simplifying C reproducer testing compiled C program (duration=6m0.375422577s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0.375422577s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS program crashed: INFO: task hung in genl_rcv_msg testing compiled C program (duration=6m0.375422577s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS program crashed: INFO: task hung in genl_rcv_msg testing compiled C program (duration=6m0.375422577s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS program crashed: INFO: task hung in genl_rcv_msg testing compiled C program (duration=6m0.375422577s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS program crashed: INFO: task hung in genl_rcv_msg testing compiled C program (duration=6m0.375422577s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS program crashed: INFO: task hung in genl_rcv_msg testing compiled C program (duration=6m0.375422577s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-recvmsg-sendmsg$tipc-socket-setsockopt$packet_tx_ring-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_SHOW_PORTS program crashed: INFO: task hung in genl_rcv_msg reproducing took 2h57m54.218725436s repro crashed as (corrupted=false): INFO: task syz-executor127:6167 blocked for more than 143 seconds. Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor127 state:D stack:25760 pid:6167 tgid:6152 ppid:5845 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 __sys_sendto+0x363/0x4c0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0f7acedcc RSP: 002b:00007fe0f7a44160 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe0f7a44224 RCX: 00007fe0f7acedcc RDX: 0000000000000020 RSI: 00007fe0f7a44210 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fe0f7a441b4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe0f7a44210 R13: 000000000000006e R14: 00007fffb12fdf00 R15: 00007fffb12fdfe8 INFO: task syz-executor127:6168 blocked for more than 143 seconds. Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor127 state:D stack:25760 pid:6168 tgid:6154 ppid:5841 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 __sys_sendto+0x363/0x4c0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0f7acedcc RSP: 002b:00007fe0f7a44160 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe0f7a44224 RCX: 00007fe0f7acedcc RDX: 0000000000000020 RSI: 00007fe0f7a44210 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fe0f7a441b4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe0f7a44210 R13: 000000000000006e R14: 00007fffb12fdf00 R15: 00007fffb12fdfe8 INFO: task syz-executor127:6169 blocked for more than 144 seconds. Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor127 state:D stack:24688 pid:6169 tgid:6158 ppid:5842 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 __sys_sendto+0x363/0x4c0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0f7acedcc RSP: 002b:00007fe0f7a44160 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe0f7a44224 RCX: 00007fe0f7acedcc RDX: 0000000000000020 RSI: 00007fe0f7a44210 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fe0f7a441b4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe0f7a44210 R13: 000000000000006e R14: 00007fffb12fdf00 R15: 00007fffb12fdfe8 INFO: task syz-executor127:6176 blocked for more than 144 seconds. Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor127 state:D stack:24688 pid:6176 tgid:6173 ppid:5852 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 __sys_sendto+0x363/0x4c0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0f7acedcc RSP: 002b:00007fe0f7a44160 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe0f7a44224 RCX: 00007fe0f7acedcc RDX: 0000000000000020 RSI: 00007fe0f7a44210 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fe0f7a441b4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe0f7a44210 R13: 000000000000006e R14: 00007fffb12fdf00 R15: 00007fffb12fdfe8 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744 2 locks held by getty/5589: #0: ffff8880316a40a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211 2 locks held by syz-executor127/6167: #0: ffffffff8fd15ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 2 locks held by syz-executor127/6168: #0: ffffffff8fd15ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 2 locks held by syz-executor127/6166: 2 locks held by syz-executor127/6169: #0: ffffffff8fd15ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 2 locks held by syz-executor127/6176: #0: ffffffff8fd15ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline] watchdog+0xff6/0x1040 kernel/hung_task.c:397 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 6166 Comm: syz-executor127 Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:rcu_preempt_read_enter kernel/rcu/tree_plugin.h:390 [inline] RIP: 0010:__rcu_read_lock+0x30/0xb0 kernel/rcu/tree_plugin.h:413 Code: 57 41 56 53 49 be 00 00 00 00 00 fc ff df 65 4c 8b 3c 25 00 d6 03 00 49 81 c7 44 04 00 00 4c 89 fb 48 c1 eb 03 42 0f b6 04 33 <84> c0 75 35 41 8b 2f ff c5 42 0f b6 04 33 84 c0 75 3e 41 89 2f 42 RSP: 0018:ffffc90004eae7b8 EFLAGS: 00000a07 RAX: 0000000000000000 RBX: 1ffff1100fd61088 RCX: ffffc90004eae603 RDX: 0000000000000002 RSI: ffffffff8c0aaae0 RDI: ffffffff8c5fb260 RBP: ffffc90004eae8d0 R08: ffffffff901984f7 R09: 1ffffffff203309e R10: dffffc0000000000 R11: fffffbfff203309f R12: 1ffff920009d5d34 R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88807eb08444 FS: 00007fe0f7a456c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e0906dade0 CR3: 0000000032d98000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_read_lock include/linux/rcupdate.h:847 [inline] tipc_sk_lookup+0xc6/0x940 net/tipc/socket.c:2997 tipc_nl_publ_dump+0x2c6/0xde0 net/tipc/socket.c:3806 __tipc_nl_compat_dumpit+0x4bf/0xbf0 net/tipc/netlink_compat.c:224 tipc_nl_compat_publ_dump net/tipc/netlink_compat.c:1032 [inline] tipc_nl_compat_sk_dump+0x7b3/0x9a0 net/tipc/netlink_compat.c:1084 __tipc_nl_compat_dumpit+0x611/0xbf0 net/tipc/netlink_compat.c:235 tipc_nl_compat_dumpit+0x4fc/0x740 net/tipc/netlink_compat.c:318 tipc_nl_compat_recv+0xdaa/0x14c0 net/tipc/netlink_compat.c:1321 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583 ___sys_sendmsg net/socket.c:2637 [inline] __sys_sendmsg+0x269/0x350 net/socket.c:2669 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0f7acd479 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe0f7a45238 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fe0f7b57388 RCX: 00007fe0f7acd479 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000006 RBP: 00007fe0f7b57380 R08: 00007fe0f7a456c0 R09: 00007fe0f7a456c0 R10: 00007fe0f7a456c0 R11: 0000000000000246 R12: 00007fe0f7b24074 R13: 000000000000006e R14: 00007fffb12fdf00 R15: 00007fffb12fdfe8 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.835 msecs final repro crashed as (corrupted=false): INFO: task syz-executor127:6167 blocked for more than 143 seconds. Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor127 state:D stack:25760 pid:6167 tgid:6152 ppid:5845 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 __sys_sendto+0x363/0x4c0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0f7acedcc RSP: 002b:00007fe0f7a44160 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe0f7a44224 RCX: 00007fe0f7acedcc RDX: 0000000000000020 RSI: 00007fe0f7a44210 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fe0f7a441b4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe0f7a44210 R13: 000000000000006e R14: 00007fffb12fdf00 R15: 00007fffb12fdfe8 INFO: task syz-executor127:6168 blocked for more than 143 seconds. Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor127 state:D stack:25760 pid:6168 tgid:6154 ppid:5841 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 __sys_sendto+0x363/0x4c0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0f7acedcc RSP: 002b:00007fe0f7a44160 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe0f7a44224 RCX: 00007fe0f7acedcc RDX: 0000000000000020 RSI: 00007fe0f7a44210 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fe0f7a441b4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe0f7a44210 R13: 000000000000006e R14: 00007fffb12fdf00 R15: 00007fffb12fdfe8 INFO: task syz-executor127:6169 blocked for more than 144 seconds. Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor127 state:D stack:24688 pid:6169 tgid:6158 ppid:5842 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 __sys_sendto+0x363/0x4c0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0f7acedcc RSP: 002b:00007fe0f7a44160 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe0f7a44224 RCX: 00007fe0f7acedcc RDX: 0000000000000020 RSI: 00007fe0f7a44210 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fe0f7a441b4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe0f7a44210 R13: 000000000000006e R14: 00007fffb12fdf00 R15: 00007fffb12fdfe8 INFO: task syz-executor127:6176 blocked for more than 144 seconds. Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor127 state:D stack:24688 pid:6176 tgid:6173 ppid:5852 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 __sys_sendto+0x363/0x4c0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0f7acedcc RSP: 002b:00007fe0f7a44160 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe0f7a44224 RCX: 00007fe0f7acedcc RDX: 0000000000000020 RSI: 00007fe0f7a44210 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fe0f7a441b4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe0f7a44210 R13: 000000000000006e R14: 00007fffb12fdf00 R15: 00007fffb12fdfe8 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744 2 locks held by getty/5589: #0: ffff8880316a40a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211 2 locks held by syz-executor127/6167: #0: ffffffff8fd15ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 2 locks held by syz-executor127/6168: #0: ffffffff8fd15ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 2 locks held by syz-executor127/6166: 2 locks held by syz-executor127/6169: #0: ffffffff8fd15ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 2 locks held by syz-executor127/6176: #0: ffffffff8fd15ab0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8fd15968 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline] watchdog+0xff6/0x1040 kernel/hung_task.c:397 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 6166 Comm: syz-executor127 Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:rcu_preempt_read_enter kernel/rcu/tree_plugin.h:390 [inline] RIP: 0010:__rcu_read_lock+0x30/0xb0 kernel/rcu/tree_plugin.h:413 Code: 57 41 56 53 49 be 00 00 00 00 00 fc ff df 65 4c 8b 3c 25 00 d6 03 00 49 81 c7 44 04 00 00 4c 89 fb 48 c1 eb 03 42 0f b6 04 33 <84> c0 75 35 41 8b 2f ff c5 42 0f b6 04 33 84 c0 75 3e 41 89 2f 42 RSP: 0018:ffffc90004eae7b8 EFLAGS: 00000a07 RAX: 0000000000000000 RBX: 1ffff1100fd61088 RCX: ffffc90004eae603 RDX: 0000000000000002 RSI: ffffffff8c0aaae0 RDI: ffffffff8c5fb260 RBP: ffffc90004eae8d0 R08: ffffffff901984f7 R09: 1ffffffff203309e R10: dffffc0000000000 R11: fffffbfff203309f R12: 1ffff920009d5d34 R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88807eb08444 FS: 00007fe0f7a456c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e0906dade0 CR3: 0000000032d98000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_read_lock include/linux/rcupdate.h:847 [inline] tipc_sk_lookup+0xc6/0x940 net/tipc/socket.c:2997 tipc_nl_publ_dump+0x2c6/0xde0 net/tipc/socket.c:3806 __tipc_nl_compat_dumpit+0x4bf/0xbf0 net/tipc/netlink_compat.c:224 tipc_nl_compat_publ_dump net/tipc/netlink_compat.c:1032 [inline] tipc_nl_compat_sk_dump+0x7b3/0x9a0 net/tipc/netlink_compat.c:1084 __tipc_nl_compat_dumpit+0x611/0xbf0 net/tipc/netlink_compat.c:235 tipc_nl_compat_dumpit+0x4fc/0x740 net/tipc/netlink_compat.c:318 tipc_nl_compat_recv+0xdaa/0x14c0 net/tipc/netlink_compat.c:1321 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583 ___sys_sendmsg net/socket.c:2637 [inline] __sys_sendmsg+0x269/0x350 net/socket.c:2669 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0f7acd479 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe0f7a45238 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fe0f7b57388 RCX: 00007fe0f7acd479 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000006 RBP: 00007fe0f7b57380 R08: 00007fe0f7a456c0 R09: 00007fe0f7a456c0 R10: 00007fe0f7a456c0 R11: 0000000000000246 R12: 00007fe0f7b24074 R13: 000000000000006e R14: 00007fffb12fdf00 R15: 00007fffb12fdfe8 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.835 msecs