Extracting prog: 5m53.017676561s
Minimizing prog: 1h23m2.304209462s
Simplifying prog options: 16m15.914777143s
Extracting C: 5m6.422408581s
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: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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs: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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, 0x0, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, 0x0, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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}}): ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
ioctl$ifreq_SIOCGIFINDEX_vcan(0xffffffffffffffff, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r0=>0x0})
setsockopt$sock_int(0xffffffffffffffff, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(0xffffffffffffffff, &(0x7f0000000140)={0x1d, r0, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(0xffffffffffffffff, &(0x7f0000000180)={0x1d, r0, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, 0x0)
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, 0x0, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, 0x0, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, 0x0, 0x0)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, 0x0, 0x0)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, 0x0, 0x0)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, 0x0, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, 0x0}, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={0x0}}, 0x0)

program did not crash
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)}}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
extracting C reproducer
testing compiled C program (duration=5m50.112779074s, {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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=5m50.112779074s, {Threaded:false 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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
extracting C reproducer
testing compiled C program (duration=5m50.112779074s, {Threaded:false 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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=5m50.112779074s, {Threaded:false 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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
validation run: crashed=true
testing program (duration=5m50.112779074s, {Threaded:false 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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
validation run: crashed=true
testing program (duration=5m50.112779074s, {Threaded:false 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$can_j1939-ioctl$ifreq_SIOCGIFINDEX_vcan-setsockopt$sock_int-bind$can_j1939-connect$can_j1939-sendmsg$can_j1939
detailed listing:
executing program 0:
r0 = socket$can_j1939(0x1d, 0x2, 0x7)
ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000000c0)={'vcan0\x00', <r1=>0x0})
setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000040)=0x1, 0x4)
bind$can_j1939(r0, &(0x7f0000000140)={0x1d, r1, 0x102030405060708, {}, 0x20}, 0x18)
connect$can_j1939(r0, &(0x7f0000000180)={0x1d, r1, 0x0, {0x0, 0xee}, 0xff}, 0x18)
sendmsg$can_j1939(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)="0807060504030201", 0x8}}, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
validation run: crashed=true
reproducing took 1h59m25.218909819s
repro crashed as (corrupted=false):
unregister_netdevice: waiting for vcan0 to become free. Usage count = 1201
ref_tracker: netdev@ffff8880538a0700 has 600/1200 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4528 [inline]
     netdev_hold include/linux/netdevice.h:4557 [inline]
     j1939_ecu_create_locked+0x1fc/0x4d0 net/can/j1939/bus.c:159
     j1939_local_ecu_get+0x1b8/0x250 net/can/j1939/bus.c:293
     j1939_sk_bind+0x89b/0xdb0 net/can/j1939/socket.c:529
     __sys_bind_socket net/socket.c:1945 [inline]
     __sys_bind_socket net/socket.c:1937 [inline]
     __sys_bind+0x1a9/0x260 net/socket.c:1976
     __do_sys_bind net/socket.c:1981 [inline]
     __se_sys_bind net/socket.c:1979 [inline]
     __x64_sys_bind+0x72/0xb0 net/socket.c:1979
     do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
     do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

ref_tracker: netdev@ffff8880538a0700 has 600/1200 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4528 [inline]
     netdev_hold include/linux/netdevice.h:4557 [inline]
     j1939_priv_create net/can/j1939/main.c:140 [inline]
     j1939_netdev_start+0x2b8/0x990 net/can/j1939/main.c:268
     j1939_sk_bind+0x479/0xdb0 net/can/j1939/socket.c:506
     __sys_bind_socket net/socket.c:1945 [inline]
     __sys_bind_socket net/socket.c:1937 [inline]
     __sys_bind+0x1a9/0x260 net/socket.c:1976
     __do_sys_bind net/socket.c:1981 [inline]
     __se_sys_bind net/socket.c:1979 [inline]
     __x64_sys_bind+0x72/0xb0 net/socket.c:1979
     do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
     do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
     entry_SYSCALL_64_after_hwframe+0x77/0x7f


final repro crashed as (corrupted=false):
unregister_netdevice: waiting for vcan0 to become free. Usage count = 1201
ref_tracker: netdev@ffff8880538a0700 has 600/1200 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4528 [inline]
     netdev_hold include/linux/netdevice.h:4557 [inline]
     j1939_ecu_create_locked+0x1fc/0x4d0 net/can/j1939/bus.c:159
     j1939_local_ecu_get+0x1b8/0x250 net/can/j1939/bus.c:293
     j1939_sk_bind+0x89b/0xdb0 net/can/j1939/socket.c:529
     __sys_bind_socket net/socket.c:1945 [inline]
     __sys_bind_socket net/socket.c:1937 [inline]
     __sys_bind+0x1a9/0x260 net/socket.c:1976
     __do_sys_bind net/socket.c:1981 [inline]
     __se_sys_bind net/socket.c:1979 [inline]
     __x64_sys_bind+0x72/0xb0 net/socket.c:1979
     do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
     do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

ref_tracker: netdev@ffff8880538a0700 has 600/1200 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4528 [inline]
     netdev_hold include/linux/netdevice.h:4557 [inline]
     j1939_priv_create net/can/j1939/main.c:140 [inline]
     j1939_netdev_start+0x2b8/0x990 net/can/j1939/main.c:268
     j1939_sk_bind+0x479/0xdb0 net/can/j1939/socket.c:506
     __sys_bind_socket net/socket.c:1945 [inline]
     __sys_bind_socket net/socket.c:1937 [inline]
     __sys_bind+0x1a9/0x260 net/socket.c:1976
     __do_sys_bind net/socket.c:1981 [inline]
     __se_sys_bind net/socket.c:1979 [inline]
     __x64_sys_bind+0x72/0xb0 net/socket.c:1979
     do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
     do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
     entry_SYSCALL_64_after_hwframe+0x77/0x7f