Extracting prog: 5m22.137721878s
Minimizing prog: 1h16m16.914117012s
Simplifying prog options: 15m40.754473962s
Extracting C: 5m9.976766616s
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:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

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:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

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:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program crashed: WARNING in __dev_change_net_namespace
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00'})
gettid()
socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r2, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-socket$nl_route-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
r0 = gettid()
r1 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, 0x0, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r0}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r0=>0x0})
r1 = gettid()
r2 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r2, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r0, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r1}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0)
r1 = gettid()
r2 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r2, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, 0x0, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r1}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00'})
gettid()
r1 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r1, 0x0, 0x0) (fail_nth: 70)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00'})
gettid()
r1 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r1, &(0x7f0000000280)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00'})
gettid()
r1 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={0x0}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB: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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program crashed: WARNING in __dev_change_net_namespace
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program crashed: WARNING in __dev_change_net_namespace
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB: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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB: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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program crashed: WARNING in __dev_change_net_namespace
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB: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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB: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}}): socketpair$unix-socket$nl_route-ioctl$sock_SIOCGIFINDEX-gettid-socket-syz_init_net_socket$bt_hci-sendmsg$nl_route
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x2, 0x0, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'vlan0\x00', <r1=>0x0})
r2 = gettid()
r3 = socket(0x10, 0x803, 0x0)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x403, 0xfffffff9, 0x25dfdbfe, {0x0, 0x0, 0x74, r1, 0x19c04, 0x55007}, [@IFLA_NET_NS_PID={0x8, 0x13, r2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4802}, 0x0) (fail_nth: 70)

program crashed: WARNING in __dev_change_net_namespace
validation run: crashed=true
reproducing took 2h0m17.648722928s
repro crashed as (corrupted=false):
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000001 R14: 00007f7abbbb6080 R15: 00007fff99e65228
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5560 at net/core/dev.c:12311 __dev_change_net_namespace+0x1e2a/0x2030 net/core/dev.c:12311
Modules linked in:
CPU: 0 UID: 0 PID: 5560 Comm: syz.0.16 Not tainted 6.16.0-rc6-syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__dev_change_net_namespace+0x1e2a/0x2030 net/core/dev.c:12311
Code: 01 90 48 c7 c7 c0 db 92 8c 48 c7 c6 c0 da 92 8c ba 8c 2f 00 00 e8 46 0a 2b f8 90 0f 0b 90 90 e9 4f e3 ff ff e8 67 27 67 f8 90 <0f> 0b 90 e9 6b f7 ff ff e8 59 27 67 f8 90 0f 0b 90 e9 02 fb ff ff
RSP: 0018:ffffc9000cbde820 EFLAGS: 00010293
RAX: ffffffff89590c09 RBX: ffff888050f6c724 RCX: ffff888000f70000
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: ffffc9000cbdec50 R08: ffff888050f6c723 R09: 1ffff1100a1ed8e4
R10: dffffc0000000000 R11: ffffed100a1ed8e5 R12: dffffc0000000000
R13: ffff888050c73280 R14: 00000000fffffff4 R15: 1ffff1100a1ed8e4
FS:  00007f7abc7cb6c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fca102f5440 CR3: 0000000059563000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 do_setlink+0x292/0x41c0 net/core/rtnetlink.c:3043
 rtnl_changelink net/core/rtnetlink.c:3759 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3918 [inline]
 rtnl_newlink+0x160b/0x1c70 net/core/rtnetlink.c:4055
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6944
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x759/0x8e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:727
 ____sys_sendmsg+0x505/0x830 net/socket.c:2566
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620
 __sys_sendmsg net/socket.c:2652 [inline]
 __do_sys_sendmsg net/socket.c:2657 [inline]
 __se_sys_sendmsg net/socket.c:2655 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7abb98e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7abc7cb038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7abbbb6080 RCX: 00007f7abb98e929
RDX: 0000000000000000 RSI: 0000200000000280 RDI: 0000000000000004
RBP: 00007f7abc7cb090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000001 R14: 00007f7abbbb6080 R15: 00007fff99e65228
 </TASK>

final repro crashed as (corrupted=false):
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000001 R14: 00007f7abbbb6080 R15: 00007fff99e65228
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5560 at net/core/dev.c:12311 __dev_change_net_namespace+0x1e2a/0x2030 net/core/dev.c:12311
Modules linked in:
CPU: 0 UID: 0 PID: 5560 Comm: syz.0.16 Not tainted 6.16.0-rc6-syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__dev_change_net_namespace+0x1e2a/0x2030 net/core/dev.c:12311
Code: 01 90 48 c7 c7 c0 db 92 8c 48 c7 c6 c0 da 92 8c ba 8c 2f 00 00 e8 46 0a 2b f8 90 0f 0b 90 90 e9 4f e3 ff ff e8 67 27 67 f8 90 <0f> 0b 90 e9 6b f7 ff ff e8 59 27 67 f8 90 0f 0b 90 e9 02 fb ff ff
RSP: 0018:ffffc9000cbde820 EFLAGS: 00010293
RAX: ffffffff89590c09 RBX: ffff888050f6c724 RCX: ffff888000f70000
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: ffffc9000cbdec50 R08: ffff888050f6c723 R09: 1ffff1100a1ed8e4
R10: dffffc0000000000 R11: ffffed100a1ed8e5 R12: dffffc0000000000
R13: ffff888050c73280 R14: 00000000fffffff4 R15: 1ffff1100a1ed8e4
FS:  00007f7abc7cb6c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fca102f5440 CR3: 0000000059563000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 do_setlink+0x292/0x41c0 net/core/rtnetlink.c:3043
 rtnl_changelink net/core/rtnetlink.c:3759 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3918 [inline]
 rtnl_newlink+0x160b/0x1c70 net/core/rtnetlink.c:4055
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6944
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x759/0x8e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:727
 ____sys_sendmsg+0x505/0x830 net/socket.c:2566
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620
 __sys_sendmsg net/socket.c:2652 [inline]
 __do_sys_sendmsg net/socket.c:2657 [inline]
 __se_sys_sendmsg net/socket.c:2655 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7abb98e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7abc7cb038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7abbbb6080 RCX: 00007f7abb98e929
RDX: 0000000000000000 RSI: 0000200000000280 RDI: 0000000000000004
RBP: 00007f7abc7cb090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000001 R14: 00007f7abbbb6080 R15: 00007fff99e65228
 </TASK>