Extracting prog: 3m12.728020756s
Minimizing prog: 26m35.734493205s
Simplifying prog options: 0s
Extracting C: 38.71203847s
Simplifying C: 25m6.559927922s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r3)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r3)

program crashed: kernel BUG in pn_socket_sendmsg
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
accept4(r0, 0x0, 0x0, 0x80000)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
syz_genetlink_get_family_id$team(&(0x7f0000000000), 0xffffffffffffffff)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
socket$phonet_pipe(0x23, 0x5, 0x2)
r2 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r2)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
connect$phonet_pipe(0xffffffffffffffff, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r2 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r2)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
socket$kcm(0x10, 0x2, 0x0)
r1 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r1, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r2 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r2)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
sendmsg$inet(0xffffffffffffffff, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r1 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r1, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r2 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r2)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r3)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
listen(0xffffffffffffffff, 0x800)
r0 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r1 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r1, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r2 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r2)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, 0x0, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r3)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r3)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{0x0}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r3)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r3)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, 0x0, 0x0)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r3)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(0x0, r3)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
simplifying C reproducer
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program did not crash
testing compiled C program (duration=1m40s, {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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program did not crash
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program did not crash
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
program crashed: kernel BUG in pn_socket_sendmsg
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r3)

program crashed: kernel BUG in pn_socket_sendmsg
validation run: crashed=true
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r3)

program crashed: kernel BUG in pn_socket_sendmsg
validation run: crashed=true
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true 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$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe-accept4-syz_genetlink_get_family_id$team
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
r1 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$inet(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4)
r2 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r2, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)
r3 = accept4(r0, 0x0, 0x0, 0x80000)
syz_genetlink_get_family_id$team(&(0x7f0000000000), r3)

program crashed: kernel BUG in pn_socket_sendmsg
validation run: crashed=true
reproducing took 1h1m31.138428764s
repro crashed as (corrupted=false):
netlink: 'syz.0.17': attribute type 2 has an invalid length.
------------[ cut here ]------------
kernel BUG at net/phonet/socket.c:213!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6014 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_sendmsg+0x240/0x250 net/phonet/socket.c:421
Code: cc cc cc e8 c2 0c d2 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 04 ff ff ff 48 89 df e8 bb d3 be f7 e9 f7 fe ff ff e8 c1 5a 55 f7 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90
RSP: 0018:ffffc900050d7ba0 EFLAGS: 00010293
RAX: ffffffff8a6fa75f RBX: 0000000000000000 RCX: ffff888031b91ec0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900050d7c58 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f9e8df R12: dffffc0000000000
R13: ffff88805c7b5ec0 R14: ffff888034fecec0 R15: 1ffff92000a1af78
FS:  00007f347ac666c0(0000) GS:ffff888125a62000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f347b5f7680 CR3: 000000003d362000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sock_sendmsg_nosec+0x112/0x150 net/socket.c:797
 __sock_sendmsg net/socket.c:812 [inline]
 __sys_sendto+0x402/0x590 net/socket.c:2280
 __do_sys_sendto net/socket.c:2287 [inline]
 __se_sys_sendto net/socket.c:2283 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2283
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f347b5cd04e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f347ac64e88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f347ac666c0 RCX: 00007f347b5cd04e
RDX: 0000000000000020 RSI: 00007f347ac65000 RDI: 0000000000000006
RBP: 0000000000000000 R08: 00007f347ac64f04 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 00007f347ac64f58 R14: 00007f347ac65000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_sendmsg+0x240/0x250 net/phonet/socket.c:421
Code: cc cc cc e8 c2 0c d2 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 04 ff ff ff 48 89 df e8 bb d3 be f7 e9 f7 fe ff ff e8 c1 5a 55 f7 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90
RSP: 0018:ffffc900050d7ba0 EFLAGS: 00010293
RAX: ffffffff8a6fa75f RBX: 0000000000000000 RCX: ffff888031b91ec0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900050d7c58 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f9e8df R12: dffffc0000000000
R13: ffff88805c7b5ec0 R14: ffff888034fecec0 R15: 1ffff92000a1af78
FS:  00007f347ac666c0(0000) GS:ffff888125a62000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f347b5f7680 CR3: 000000003d362000 CR4: 00000000003526f0

final repro crashed as (corrupted=false):
netlink: 'syz.0.17': attribute type 2 has an invalid length.
------------[ cut here ]------------
kernel BUG at net/phonet/socket.c:213!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6014 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_sendmsg+0x240/0x250 net/phonet/socket.c:421
Code: cc cc cc e8 c2 0c d2 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 04 ff ff ff 48 89 df e8 bb d3 be f7 e9 f7 fe ff ff e8 c1 5a 55 f7 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90
RSP: 0018:ffffc900050d7ba0 EFLAGS: 00010293
RAX: ffffffff8a6fa75f RBX: 0000000000000000 RCX: ffff888031b91ec0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900050d7c58 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f9e8df R12: dffffc0000000000
R13: ffff88805c7b5ec0 R14: ffff888034fecec0 R15: 1ffff92000a1af78
FS:  00007f347ac666c0(0000) GS:ffff888125a62000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f347b5f7680 CR3: 000000003d362000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sock_sendmsg_nosec+0x112/0x150 net/socket.c:797
 __sock_sendmsg net/socket.c:812 [inline]
 __sys_sendto+0x402/0x590 net/socket.c:2280
 __do_sys_sendto net/socket.c:2287 [inline]
 __se_sys_sendto net/socket.c:2283 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2283
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f347b5cd04e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f347ac64e88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f347ac666c0 RCX: 00007f347b5cd04e
RDX: 0000000000000020 RSI: 00007f347ac65000 RDI: 0000000000000006
RBP: 0000000000000000 R08: 00007f347ac64f04 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 00007f347ac64f58 R14: 00007f347ac65000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_sendmsg+0x240/0x250 net/phonet/socket.c:421
Code: cc cc cc e8 c2 0c d2 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 04 ff ff ff 48 89 df e8 bb d3 be f7 e9 f7 fe ff ff e8 c1 5a 55 f7 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90
RSP: 0018:ffffc900050d7ba0 EFLAGS: 00010293
RAX: ffffffff8a6fa75f RBX: 0000000000000000 RCX: ffff888031b91ec0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900050d7c58 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f9e8df R12: dffffc0000000000
R13: ffff88805c7b5ec0 R14: ffff888034fecec0 R15: 1ffff92000a1af78
FS:  00007f347ac666c0(0000) GS:ffff888125a62000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f347b5f7680 CR3: 000000003d362000 CR4: 00000000003526f0