Extracting prog: 2m15.420757175s
Minimizing prog: 18m35.288684704s
Simplifying prog options: 0s
Extracting C: 1m13.345828619s
Simplifying C: 6m38.427066848s


extracting reproducer from 30 programs
testing a last program of every proc
single: executing 5 programs separately with timeout 30s
testing program (duration=30s, {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}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program crashed: possible deadlock in unix_collect_skb
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=45.210262377s, {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}}): socket$unix-bind$unix-listen-socket$unix-connect$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)

program did not crash
testing program (duration=45.210262377s, {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}}): socket$unix-bind$unix-listen-socket$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program did not crash
testing program (duration=45.210262377s, {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}}): socket$unix-bind$unix-listen-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
connect$unix(0xffffffffffffffff, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program did not crash
testing program (duration=45.210262377s, {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}}): socket$unix-bind$unix-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program did not crash
testing program (duration=45.210262377s, {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}}): socket$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program did not crash
testing program (duration=45.210262377s, {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}}): bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
bind$unix(0xffffffffffffffff, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(0xffffffffffffffff, 0x0)
r0 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r0, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r0, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [0xffffffffffffffff]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program did not crash
testing program (duration=45.210262377s, {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}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, 0x0, 0x0)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program did not crash
testing program (duration=45.210262377s, {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}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, 0x0, 0x0)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program did not crash
testing program (duration=45.210262377s, {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}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, 0x0, 0x0, 0x8041)

program did not crash
testing program (duration=45.210262377s, {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}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program did not crash
testing program (duration=45.210262377s, {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}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{0x0}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program did not crash
testing program (duration=45.210262377s, {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}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program did not crash
testing program (duration=45.210262377s, {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}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, 0x0, 0x0, 0xc840}}], 0x1, 0x8041)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.210262377s, {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}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
program crashed: possible deadlock in unix_collect_skb
simplifying C reproducer
testing compiled C program (duration=45.210262377s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
program crashed: possible deadlock in unix_collect_skb
testing compiled C program (duration=45.210262377s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
program crashed: possible deadlock in unix_collect_skb
testing compiled C program (duration=45.210262377s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
program crashed: possible deadlock in unix_collect_skb
testing compiled C program (duration=45.210262377s, {Threaded:false Repeat:false 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:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
program did not crash
testing compiled C program (duration=45.210262377s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
program crashed: possible deadlock in unix_collect_skb
testing compiled C program (duration=45.210262377s, {Threaded:false Repeat:false 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:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
program did not crash
testing compiled C program (duration=45.210262377s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
program crashed: possible deadlock in unix_collect_skb
testing program (duration=45.210262377s, {Threaded:false Repeat:false 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:false Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program crashed: possible deadlock in unix_collect_skb
validation run: crashed=true
testing program (duration=45.210262377s, {Threaded:false Repeat:false 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:false Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program crashed: possible deadlock in unix_collect_skb
validation run: crashed=true
testing program (duration=45.210262377s, {Threaded:false Repeat:false 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:false Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-bind$unix-listen-socket$unix-connect$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = socket$unix(0x1, 0x1, 0x0)
bind$unix(r0, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
listen(r0, 0x0)
r1 = socket$unix(0x1, 0x1, 0x0)
connect$unix(r1, &(0x7f0000000080)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e)
sendmmsg$unix(r1, &(0x7f0000000140)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000200)="e99099ad43", 0x5}], 0x1, &(0x7f0000000000)=[@rights={{0x14, 0x1, 0x1, [r0]}}], 0x18, 0xc840}}], 0x1, 0x8041)

program crashed: possible deadlock in unix_collect_skb
validation run: crashed=true
reproducing took 32m48.889678394s
repro crashed as (corrupted=false):
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
============================================
WARNING: possible recursive locking detected
6.1.143-syzkaller #0 Not tainted
--------------------------------------------
kworker/u4:2/39 is trying to acquire lock:
ffff0000d5bca1e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
ffff0000d5bca1e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: unix_collect_skb+0x140/0x480 net/unix/garbage.c:361

but task is already holding lock:
ffff0000d5bc91e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
ffff0000d5bc91e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: unix_collect_skb+0xa8/0x480 net/unix/garbage.c:353

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

       CPU0
       ----
  lock(rlock-AF_UNIX);
  lock(rlock-AF_UNIX);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

4 locks held by kworker/u4:2/39:
 #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265
 #1: ffff80001cd77c20 (unix_gc_work){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267
 #2: ffff800017817358 (unix_gc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #2: ffff800017817358 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0xb8/0x1334 net/unix/garbage.c:555
 #3: ffff0000d5bc91e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #3: ffff0000d5bc91e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: unix_collect_skb+0xa8/0x480 net/unix/garbage.c:353

stack backtrace:
CPU: 1 PID: 39 Comm: kworker/u4:2 Not tainted 6.1.143-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: events_unbound __unix_gc
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 __lock_acquire+0x18b4/0x6544 kernel/locking/lockdep.c:-1
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 unix_collect_skb+0x140/0x480 net/unix/garbage.c:361
 __unix_walk_scc net/unix/garbage.c:484 [inline]
 unix_walk_scc net/unix/garbage.c:509 [inline]
 __unix_gc+0xd18/0x1334 net/unix/garbage.c:567
 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292
 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:849

final repro crashed as (corrupted=false):
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
============================================
WARNING: possible recursive locking detected
6.1.143-syzkaller #0 Not tainted
--------------------------------------------
kworker/u4:2/39 is trying to acquire lock:
ffff0000d5bca1e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
ffff0000d5bca1e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: unix_collect_skb+0x140/0x480 net/unix/garbage.c:361

but task is already holding lock:
ffff0000d5bc91e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
ffff0000d5bc91e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: unix_collect_skb+0xa8/0x480 net/unix/garbage.c:353

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

       CPU0
       ----
  lock(rlock-AF_UNIX);
  lock(rlock-AF_UNIX);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

4 locks held by kworker/u4:2/39:
 #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265
 #1: ffff80001cd77c20 (unix_gc_work){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267
 #2: ffff800017817358 (unix_gc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #2: ffff800017817358 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0xb8/0x1334 net/unix/garbage.c:555
 #3: ffff0000d5bc91e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #3: ffff0000d5bc91e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: unix_collect_skb+0xa8/0x480 net/unix/garbage.c:353

stack backtrace:
CPU: 1 PID: 39 Comm: kworker/u4:2 Not tainted 6.1.143-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: events_unbound __unix_gc
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 __lock_acquire+0x18b4/0x6544 kernel/locking/lockdep.c:-1
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 unix_collect_skb+0x140/0x480 net/unix/garbage.c:361
 __unix_walk_scc net/unix/garbage.c:484 [inline]
 unix_walk_scc net/unix/garbage.c:509 [inline]
 __unix_gc+0xd18/0x1334 net/unix/garbage.c:567
 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292
 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:849