Extracting prog: 5m49.997989331s
Minimizing prog: 1h13m24.979258398s
Simplifying prog options: 0s
Extracting C: 37.824521328s
Simplifying C: 1h10m8.58438173s


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$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
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)

program did not crash
program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
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)

program crashed: inconsistent lock state in __sk_receive_skb
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
r1 = socket$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)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
r1 = socket$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)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
socket$kcm(0x10, 0x2, 0x0)
r1 = socket$phonet_pipe(0x23, 0x5, 0x2)
connect$phonet_pipe(r1, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
sendmsg$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)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$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)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
accept4(r0, 0x0, 0x0, 0x80000)
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)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
listen(0xffffffffffffffff, 0x800)
accept4(0xffffffffffffffff, 0x0, 0x0, 0x80000)
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)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
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)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
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)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
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)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
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)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
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)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: inconsistent lock state in __sk_receive_skb
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: inconsistent lock state in __sk_receive_skb
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection: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$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset: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$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc: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$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: inconsistent lock state in __sk_receive_skb
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB: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$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: inconsistent lock state in __sk_receive_skb
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: inconsistent lock state in __sk_receive_skb
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
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)

program crashed: inconsistent lock state in __sk_receive_skb
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
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)

program crashed: inconsistent lock state in __sk_receive_skb
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-listen-accept4-socket$kcm-sendmsg$inet-socket$phonet_pipe-connect$phonet_pipe
detailed listing:
executing program 0:
r0 = socket$kcm(0x23, 0x5, 0x0)
listen(r0, 0x800)
accept4(r0, 0x0, 0x0, 0x80000)
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)

program crashed: inconsistent lock state in __sk_receive_skb
validation run: crashed=true
reproducing took 2h33m37.436972691s
repro crashed as (corrupted=false):
================================
WARNING: inconsistent lock state
syzkaller #0 Not tainted
--------------------------------
inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
syz.0.25/6132 [HC0[0]:SC0[0]:HE1:SE1] takes:
ffff888031a00868 (slock-AF_PHONET/1){+.?.}-{3:3}, at: __sk_receive_skb+0x23c/0xa90 net/core/sock.c:570
{IN-SOFTIRQ-W} state was registered at:
  lock_acquire+0xf0/0x2e0 kernel/locking/lockdep.c:5868
  _raw_spin_lock_nested+0x32/0x50 kernel/locking/spinlock.c:378
  __sk_receive_skb+0x23c/0xa90 net/core/sock.c:570
  sk_receive_skb include/net/sock.h:2023 [inline]
  pep_do_rcv+0x685/0xaa0 net/phonet/pep.c:675
  sk_backlog_rcv include/net/sock.h:1190 [inline]
  __sk_receive_skb+0xa07/0xa90 net/core/sock.c:579
  sk_receive_skb include/net/sock.h:2023 [inline]
  phonet_rcv+0x781/0xc40 net/phonet/af_phonet.c:-1
  __netif_receive_skb_one_core net/core/dev.c:6178 [inline]
  __netif_receive_skb net/core/dev.c:6291 [inline]
  process_backlog+0xc66/0x1950 net/core/dev.c:6642
  __napi_poll+0xae/0x340 net/core/dev.c:7706
  napi_poll net/core/dev.c:7769 [inline]
  net_rx_action+0x627/0xf70 net/core/dev.c:7926
  handle_softirqs+0x22a/0x870 kernel/softirq.c:626
  do_softirq+0x76/0xd0 kernel/softirq.c:523
  __local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450
  local_bh_enable include/linux/bottom_half.h:33 [inline]
  netif_rx+0x83/0x90 net/core/dev.c:5744
  pn_send+0x62a/0x8e0 net/phonet/af_phonet.c:185
  pn_skb_send+0x218/0x530 net/phonet/af_phonet.c:272
  pep_indicate net/phonet/pep.c:123 [inline]
  pipe_handler_send_created_ind net/phonet/pep.c:155 [inline]
  pep_connresp_rcv net/phonet/pep.c:521 [inline]
  pipe_handler_do_rcv+0x165a/0x2030 net/phonet/pep.c:587
  pep_do_rcv+0x5d6/0xaa0 net/phonet/pep.c:708
  sk_backlog_rcv include/net/sock.h:1190 [inline]
  __release_sock+0x297/0x3a0 net/core/sock.c:3213
  release_sock+0x5f/0x1f0 net/core/sock.c:3811
  pn_socket_connect+0x713/0xba0 net/phonet/socket.c:276
  __sys_connect_file net/socket.c:2168 [inline]
  __sys_connect+0x312/0x450 net/socket.c:2187
  __do_sys_connect net/socket.c:2193 [inline]
  __se_sys_connect net/socket.c:2190 [inline]
  __x64_sys_connect+0x7a/0x90 net/socket.c:2190
  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
  do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
  entry_SYSCALL_64_after_hwframe+0x77/0x7f
irq event stamp: 189
hardirqs last  enabled at (189): [<ffffffff818927e0>] __local_bh_enable_ip+0xd0/0x130 kernel/softirq.c:455
hardirqs last disabled at (187): [<ffffffff81892781>] __local_bh_enable_ip+0x71/0x130 kernel/softirq.c:432
softirqs last  enabled at (188): [<ffffffff8984ec32>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (188): [<ffffffff8984ec32>] __release_sock+0xa2/0x3a0 net/core/sock.c:3206
softirqs last disabled at (186): [<ffffffff8983ba8f>] spin_lock_bh include/linux/spinlock.h:348 [inline]
softirqs last disabled at (186): [<ffffffff8983ba8f>] release_sock+0x2f/0x1f0 net/core/sock.c:3809

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(slock-AF_PHONET/1);
  <Interrupt>
    lock(slock-AF_PHONET/1);

 *** DEADLOCK ***

1 lock held by syz.0.25/6132:
 #0: ffff888031a06a60 (sk_lock-AF_PHONET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1714 [inline]
 #0: ffff888031a06a60 (sk_lock-AF_PHONET){+.+.}-{0:0}, at: pep_sock_accept+0x111/0x1410 net/phonet/pep.c:780

stack backtrace:
CPU: 1 UID: 0 PID: 6132 Comm: syz.0.25 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_usage_bug+0x28b/0x2e0 kernel/locking/lockdep.c:4042
 valid_state kernel/locking/lockdep.c:4056 [inline]
 mark_lock_irq+0x410/0x420 kernel/locking/lockdep.c:-1
 mark_lock+0x115/0x190 kernel/locking/lockdep.c:4753
 mark_usage kernel/locking/lockdep.c:-1 [inline]
 __lock_acquire+0x9f9/0x2cf0 kernel/locking/lockdep.c:5191
 lock_acquire+0xf0/0x2e0 kernel/locking/lockdep.c:5868
 _raw_spin_lock_nested+0x32/0x50 kernel/locking/spinlock.c:378
 __sk_receive_skb+0x23c/0xa90 net/core/sock.c:570
 sk_receive_skb include/net/sock.h:2023 [inline]
 pep_do_rcv+0x685/0xaa0 net/phonet/pep.c:675
 sk_backlog_rcv include/net/sock.h:1190 [inline]
 __release_sock+0x297/0x3a0 net/core/sock.c:3213
 release_sock+0x5f/0x1f0 net/core/sock.c:3811
 pep_sock_accept+0xed3/0x1410 net/phonet/pep.c:879
 pn_socket_accept+0xc9/0x2e0 net/phonet/socket.c:303
 do_accept+0x6ba/0x920 net/socket.c:2067
 __sys_accept4_file net/socket.c:2101 [inline]
 __sys_accept4+0x139/0x230 net/socket.c:2123
 __do_sys_accept4 net/socket.c:2130 [inline]
 __se_sys_accept4 net/socket.c:2127 [inline]
 __x64_sys_accept4+0x9a/0xb0 net/socket.c:2127
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f989f79c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f98a059f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000120
RAX: ffffffffffffffda RBX: 00007f989fa15fa0 RCX: 00007f989f79c799
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f989f832bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000080000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f989fa16038 R14: 00007f989fa15fa0 R15: 00007ffd0053bdf8
 </TASK>

final repro crashed as (corrupted=false):
================================
WARNING: inconsistent lock state
syzkaller #0 Not tainted
--------------------------------
inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
syz.0.25/6132 [HC0[0]:SC0[0]:HE1:SE1] takes:
ffff888031a00868 (slock-AF_PHONET/1){+.?.}-{3:3}, at: __sk_receive_skb+0x23c/0xa90 net/core/sock.c:570
{IN-SOFTIRQ-W} state was registered at:
  lock_acquire+0xf0/0x2e0 kernel/locking/lockdep.c:5868
  _raw_spin_lock_nested+0x32/0x50 kernel/locking/spinlock.c:378
  __sk_receive_skb+0x23c/0xa90 net/core/sock.c:570
  sk_receive_skb include/net/sock.h:2023 [inline]
  pep_do_rcv+0x685/0xaa0 net/phonet/pep.c:675
  sk_backlog_rcv include/net/sock.h:1190 [inline]
  __sk_receive_skb+0xa07/0xa90 net/core/sock.c:579
  sk_receive_skb include/net/sock.h:2023 [inline]
  phonet_rcv+0x781/0xc40 net/phonet/af_phonet.c:-1
  __netif_receive_skb_one_core net/core/dev.c:6178 [inline]
  __netif_receive_skb net/core/dev.c:6291 [inline]
  process_backlog+0xc66/0x1950 net/core/dev.c:6642
  __napi_poll+0xae/0x340 net/core/dev.c:7706
  napi_poll net/core/dev.c:7769 [inline]
  net_rx_action+0x627/0xf70 net/core/dev.c:7926
  handle_softirqs+0x22a/0x870 kernel/softirq.c:626
  do_softirq+0x76/0xd0 kernel/softirq.c:523
  __local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450
  local_bh_enable include/linux/bottom_half.h:33 [inline]
  netif_rx+0x83/0x90 net/core/dev.c:5744
  pn_send+0x62a/0x8e0 net/phonet/af_phonet.c:185
  pn_skb_send+0x218/0x530 net/phonet/af_phonet.c:272
  pep_indicate net/phonet/pep.c:123 [inline]
  pipe_handler_send_created_ind net/phonet/pep.c:155 [inline]
  pep_connresp_rcv net/phonet/pep.c:521 [inline]
  pipe_handler_do_rcv+0x165a/0x2030 net/phonet/pep.c:587
  pep_do_rcv+0x5d6/0xaa0 net/phonet/pep.c:708
  sk_backlog_rcv include/net/sock.h:1190 [inline]
  __release_sock+0x297/0x3a0 net/core/sock.c:3213
  release_sock+0x5f/0x1f0 net/core/sock.c:3811
  pn_socket_connect+0x713/0xba0 net/phonet/socket.c:276
  __sys_connect_file net/socket.c:2168 [inline]
  __sys_connect+0x312/0x450 net/socket.c:2187
  __do_sys_connect net/socket.c:2193 [inline]
  __se_sys_connect net/socket.c:2190 [inline]
  __x64_sys_connect+0x7a/0x90 net/socket.c:2190
  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
  do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
  entry_SYSCALL_64_after_hwframe+0x77/0x7f
irq event stamp: 189
hardirqs last  enabled at (189): [<ffffffff818927e0>] __local_bh_enable_ip+0xd0/0x130 kernel/softirq.c:455
hardirqs last disabled at (187): [<ffffffff81892781>] __local_bh_enable_ip+0x71/0x130 kernel/softirq.c:432
softirqs last  enabled at (188): [<ffffffff8984ec32>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (188): [<ffffffff8984ec32>] __release_sock+0xa2/0x3a0 net/core/sock.c:3206
softirqs last disabled at (186): [<ffffffff8983ba8f>] spin_lock_bh include/linux/spinlock.h:348 [inline]
softirqs last disabled at (186): [<ffffffff8983ba8f>] release_sock+0x2f/0x1f0 net/core/sock.c:3809

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(slock-AF_PHONET/1);
  <Interrupt>
    lock(slock-AF_PHONET/1);

 *** DEADLOCK ***

1 lock held by syz.0.25/6132:
 #0: ffff888031a06a60 (sk_lock-AF_PHONET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1714 [inline]
 #0: ffff888031a06a60 (sk_lock-AF_PHONET){+.+.}-{0:0}, at: pep_sock_accept+0x111/0x1410 net/phonet/pep.c:780

stack backtrace:
CPU: 1 UID: 0 PID: 6132 Comm: syz.0.25 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_usage_bug+0x28b/0x2e0 kernel/locking/lockdep.c:4042
 valid_state kernel/locking/lockdep.c:4056 [inline]
 mark_lock_irq+0x410/0x420 kernel/locking/lockdep.c:-1
 mark_lock+0x115/0x190 kernel/locking/lockdep.c:4753
 mark_usage kernel/locking/lockdep.c:-1 [inline]
 __lock_acquire+0x9f9/0x2cf0 kernel/locking/lockdep.c:5191
 lock_acquire+0xf0/0x2e0 kernel/locking/lockdep.c:5868
 _raw_spin_lock_nested+0x32/0x50 kernel/locking/spinlock.c:378
 __sk_receive_skb+0x23c/0xa90 net/core/sock.c:570
 sk_receive_skb include/net/sock.h:2023 [inline]
 pep_do_rcv+0x685/0xaa0 net/phonet/pep.c:675
 sk_backlog_rcv include/net/sock.h:1190 [inline]
 __release_sock+0x297/0x3a0 net/core/sock.c:3213
 release_sock+0x5f/0x1f0 net/core/sock.c:3811
 pep_sock_accept+0xed3/0x1410 net/phonet/pep.c:879
 pn_socket_accept+0xc9/0x2e0 net/phonet/socket.c:303
 do_accept+0x6ba/0x920 net/socket.c:2067
 __sys_accept4_file net/socket.c:2101 [inline]
 __sys_accept4+0x139/0x230 net/socket.c:2123
 __do_sys_accept4 net/socket.c:2130 [inline]
 __se_sys_accept4 net/socket.c:2127 [inline]
 __x64_sys_accept4+0x9a/0xb0 net/socket.c:2127
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f989f79c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f98a059f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000120
RAX: ffffffffffffffda RBX: 00007f989fa15fa0 RCX: 00007f989f79c799
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f989f832bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000080000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f989fa16038 R14: 00007f989fa15fa0 R15: 00007ffd0053bdf8
 </TASK>