Extracting prog: 2m2.436184143s
Minimizing prog: 16m38.987219327s
Simplifying prog options: 4m22.341558903s
Extracting C: 1m50.240956688s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: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}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f00000ec000/0x800000)=nil, 0x800000, 0x17)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
program crashed: unregister_netdevice: waiting for DEV to become free
single: successfully extracted reproducer
found reproducer with 9 syscalls
minimizing guilty program
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f00000ec000/0x800000)=nil, 0x800000, 0x17)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
preadv(0xffffffffffffffff, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, 0x0, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, 0x0)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, 0x0, 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, 0x0, 0x0, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{0x0}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4884}, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program crashed: unregister_netdevice: waiting for DEV to become free
extracting C reproducer
testing compiled C program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
program did not crash
simplifying guilty program options
testing program (duration=45.531704143s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {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}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
validation run: crashed=false
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
validation run: crashed=false
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
validation run: crashed=false
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
validation run: crashed=false
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program crashed: unregister_netdevice: waiting for DEV to become free
validation run: crashed=true
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
validation run: crashed=false
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
validation run: crashed=false
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program crashed: unregister_netdevice: waiting for DEV to become free
validation run: crashed=true
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
validation run: crashed=false
testing program (duration=45.531704143s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-mmap-openat$hwrng-preadv-sendmsg$nl_route-madvise
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x10, 0xffffffffffffffff, 0x0)
r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x81b9b9ad1adc91af)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program did not crash
validation run: crashed=false
reproducing took 42m3.469557192s
repro crashed as (corrupted=false):
unregister_netdevice: waiting for netdevsim3 to become free. Usage count = 4
leaked reference.
 __netdev_tracker_alloc include/linux/netdevice.h:4051 [inline]
 netdev_tracker_alloc include/linux/netdevice.h:4063 [inline]
 fib6_nh_init+0x620/0x19cc net/ipv6/route.c:3665
 ip6_route_info_create+0x7b0/0xf7c net/ipv6/route.c:3846
 addrconf_f6i_alloc+0x188/0x330 net/ipv6/route.c:4621
 ipv6_add_addr+0x3b4/0xccc net/ipv6/addrconf.c:1121
 inet6_addr_add+0x388/0x820 net/ipv6/addrconf.c:3013
 inet6_rtm_newaddr+0x534/0x74c net/ipv6/addrconf.c:4973
 rtnetlink_rcv_msg+0x734/0xce4 net/core/rtnetlink.c:6150
 netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2511
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6168
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x60c/0x824 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6e8/0x9b0 net/netlink/af_netlink.c:1872
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 __sys_sendto+0x304/0x3fc net/socket.c:2153
 __do_sys_sendto net/socket.c:2165 [inline]
 __se_sys_sendto net/socket.c:2161 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2161
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
leaked reference.
 __netdev_tracker_alloc include/linux/netdevice.h:4051 [inline]
 netdev_tracker_alloc+0x68/0xb4 include/linux/netdevice.h:4063
 fib_create_info+0x1990/0x1e58 net/ipv4/fib_semantics.c:1552
 fib_table_insert+0xac/0x1368 net/ipv4/fib_trie.c:1217
 fib_magic+0x250/0x31c net/ipv4/fib_frontend.c:1118
 fib_add_ifaddr+0x118/0x4f8 net/ipv4/fib_frontend.c:1140
 fib_inetaddr_event+0x12c/0x200 net/ipv4/fib_frontend.c:1454
 notifier_call_chain kernel/notifier.c:87 [inline]
 blocking_notifier_call_chain+0xf0/0x198 kernel/notifier.c:382
 __inet_insert_ifa+0x858/0x9fc net/ipv4/devinet.c:568
 inet_rtm_newaddr+0xd74/0x1590 net/ipv4/devinet.c:970
 rtnetlink_rcv_msg+0x734/0xce4 net/core/rtnetlink.c:6150
 netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2511
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6168
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x60c/0x824 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6e8/0x9b0 net/netlink/af_netlink.c:1872
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 __sys_sendto+0x304/0x3fc net/socket.c:2153
 __do_sys_sendto net/socket.c:2165 [inline]
 __se_sys_sendto net/socket.c:2161 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2161
leaked reference.
 __netdev_tracker_alloc include/linux/netdevice.h:4051 [inline]
 netdev_tracker_alloc include/linux/netdevice.h:4063 [inline]
 fib6_nh_init+0x620/0x19cc net/ipv6/route.c:3665
 ip6_route_info_create+0x7b0/0xf7c net/ipv6/route.c:3846
 addrconf_f6i_alloc+0x188/0x330 net/ipv6/route.c:4621
 ipv6_add_addr+0x3b4/0xccc net/ipv6/addrconf.c:1121
 addrconf_add_linklocal+0x22c/0x5d0 net/ipv6/addrconf.c:3257
 addrconf_addr_gen+0x3b4/0x4a8 net/ipv6/addrconf.c:3388
 addrconf_init_auto_addrs+0x5a4/0x918 net/ipv6/addrconf.c:-1
 addrconf_notify+0x8dc/0xca8 net/ipv6/addrconf.c:3685
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:455
 call_netdevice_notifiers_info net/core/dev.c:2001 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 __dev_notify_flags+0x250/0x46c net/core/dev.c:-1
 dev_change_flags+0xc8/0x154 net/core/dev.c:8714
 do_setlink+0xa24/0x32c4 net/core/rtnetlink.c:2833
 __rtnl_newlink net/core/rtnetlink.c:3608 [inline]
 rtnl_newlink+0x12d0/0x1a1c net/core/rtnetlink.c:3655
 rtnetlink_rcv_msg+0x734/0xce4 net/core/rtnetlink.c:6150
 netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2511
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6168
netdevsim netdevsim3 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0

final repro crashed as (corrupted=false):
unregister_netdevice: waiting for netdevsim3 to become free. Usage count = 4
leaked reference.
 __netdev_tracker_alloc include/linux/netdevice.h:4051 [inline]
 netdev_tracker_alloc include/linux/netdevice.h:4063 [inline]
 fib6_nh_init+0x620/0x19cc net/ipv6/route.c:3665
 ip6_route_info_create+0x7b0/0xf7c net/ipv6/route.c:3846
 addrconf_f6i_alloc+0x188/0x330 net/ipv6/route.c:4621
 ipv6_add_addr+0x3b4/0xccc net/ipv6/addrconf.c:1121
 inet6_addr_add+0x388/0x820 net/ipv6/addrconf.c:3013
 inet6_rtm_newaddr+0x534/0x74c net/ipv6/addrconf.c:4973
 rtnetlink_rcv_msg+0x734/0xce4 net/core/rtnetlink.c:6150
 netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2511
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6168
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x60c/0x824 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6e8/0x9b0 net/netlink/af_netlink.c:1872
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 __sys_sendto+0x304/0x3fc net/socket.c:2153
 __do_sys_sendto net/socket.c:2165 [inline]
 __se_sys_sendto net/socket.c:2161 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2161
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
leaked reference.
 __netdev_tracker_alloc include/linux/netdevice.h:4051 [inline]
 netdev_tracker_alloc+0x68/0xb4 include/linux/netdevice.h:4063
 fib_create_info+0x1990/0x1e58 net/ipv4/fib_semantics.c:1552
 fib_table_insert+0xac/0x1368 net/ipv4/fib_trie.c:1217
 fib_magic+0x250/0x31c net/ipv4/fib_frontend.c:1118
 fib_add_ifaddr+0x118/0x4f8 net/ipv4/fib_frontend.c:1140
 fib_inetaddr_event+0x12c/0x200 net/ipv4/fib_frontend.c:1454
 notifier_call_chain kernel/notifier.c:87 [inline]
 blocking_notifier_call_chain+0xf0/0x198 kernel/notifier.c:382
 __inet_insert_ifa+0x858/0x9fc net/ipv4/devinet.c:568
 inet_rtm_newaddr+0xd74/0x1590 net/ipv4/devinet.c:970
 rtnetlink_rcv_msg+0x734/0xce4 net/core/rtnetlink.c:6150
 netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2511
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6168
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x60c/0x824 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6e8/0x9b0 net/netlink/af_netlink.c:1872
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 __sys_sendto+0x304/0x3fc net/socket.c:2153
 __do_sys_sendto net/socket.c:2165 [inline]
 __se_sys_sendto net/socket.c:2161 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2161
leaked reference.
 __netdev_tracker_alloc include/linux/netdevice.h:4051 [inline]
 netdev_tracker_alloc include/linux/netdevice.h:4063 [inline]
 fib6_nh_init+0x620/0x19cc net/ipv6/route.c:3665
 ip6_route_info_create+0x7b0/0xf7c net/ipv6/route.c:3846
 addrconf_f6i_alloc+0x188/0x330 net/ipv6/route.c:4621
 ipv6_add_addr+0x3b4/0xccc net/ipv6/addrconf.c:1121
 addrconf_add_linklocal+0x22c/0x5d0 net/ipv6/addrconf.c:3257
 addrconf_addr_gen+0x3b4/0x4a8 net/ipv6/addrconf.c:3388
 addrconf_init_auto_addrs+0x5a4/0x918 net/ipv6/addrconf.c:-1
 addrconf_notify+0x8dc/0xca8 net/ipv6/addrconf.c:3685
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:455
 call_netdevice_notifiers_info net/core/dev.c:2001 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 __dev_notify_flags+0x250/0x46c net/core/dev.c:-1
 dev_change_flags+0xc8/0x154 net/core/dev.c:8714
 do_setlink+0xa24/0x32c4 net/core/rtnetlink.c:2833
 __rtnl_newlink net/core/rtnetlink.c:3608 [inline]
 rtnl_newlink+0x12d0/0x1a1c net/core/rtnetlink.c:3655
 rtnetlink_rcv_msg+0x734/0xce4 net/core/rtnetlink.c:6150
 netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2511
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6168
netdevsim netdevsim3 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0