Extracting prog: 2m54.868765239s
Minimizing prog: 1h24m8.578620856s
Simplifying prog options: 13m20.662082582s
Extracting C: 5m10.952522098s
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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx-ioctl$PIO_UNIMAP-renameat-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$MPTCP_PM_CMD_ADD_ADDR-syz_open_dev$loop-ioctl$BLKPG-mount-mkdirat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
r3 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)
ioctl$PIO_UNIMAP(r3, 0x4b67, &(0x7f0000000780)={0x0, 0x0})
renameat(0xffffffffffffffff, &(0x7f0000000540)='./trace/instances/inst1/events/enable\x00', r2, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'lo\x00'})
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
sendmsg$MPTCP_PM_CMD_ADD_ADDR(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x14, r1, 0x800, 0x70bd2d, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x20040004}, 0x801)
r4 = syz_open_dev$loop(&(0x7f00000004c0), 0x1, 0x40000)
ioctl$BLKPG(r4, 0x1269, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
mount(&(0x7f0000000080)=@filename='none\x00', &(0x7f00000000c0)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./trace/instances/inst1\x00', 0x1ff)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./trace/instances/inst1/events/enable\x00', 0x1, 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: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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx-ioctl$PIO_UNIMAP-renameat-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$MPTCP_PM_CMD_ADD_ADDR-syz_open_dev$loop-ioctl$BLKPG-mount-mkdirat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
r3 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)
ioctl$PIO_UNIMAP(r3, 0x4b67, &(0x7f0000000780)={0x0, 0x0})
renameat(0xffffffffffffffff, &(0x7f0000000540)='./trace/instances/inst1/events/enable\x00', r2, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'lo\x00'})
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
sendmsg$MPTCP_PM_CMD_ADD_ADDR(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x14, r1, 0x800, 0x70bd2d, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x20040004}, 0x801)
r4 = syz_open_dev$loop(&(0x7f00000004c0), 0x1, 0x40000)
ioctl$BLKPG(r4, 0x1269, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
mount(&(0x7f0000000080)=@filename='none\x00', &(0x7f00000000c0)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./trace/instances/inst1\x00', 0x1ff)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./trace/instances/inst1/events/enable\x00', 0x1, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
single: successfully extracted reproducer
found reproducer with 22 syscalls
minimizing guilty program
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx-ioctl$PIO_UNIMAP-renameat-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$MPTCP_PM_CMD_ADD_ADDR-syz_open_dev$loop-ioctl$BLKPG-mount-mkdirat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
r3 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)
ioctl$PIO_UNIMAP(r3, 0x4b67, &(0x7f0000000780)={0x0, 0x0})
renameat(0xffffffffffffffff, &(0x7f0000000540)='./trace/instances/inst1/events/enable\x00', r2, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'lo\x00'})
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
sendmsg$MPTCP_PM_CMD_ADD_ADDR(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x14, r1, 0x800, 0x70bd2d, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x20040004}, 0x801)
r4 = syz_open_dev$loop(&(0x7f00000004c0), 0x1, 0x40000)
ioctl$BLKPG(r4, 0x1269, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
mount(&(0x7f0000000080)=@filename='none\x00', &(0x7f00000000c0)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./trace/instances/inst1\x00', 0x1ff)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx-ioctl$PIO_UNIMAP-renameat-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$MPTCP_PM_CMD_ADD_ADDR-syz_open_dev$loop-ioctl$BLKPG-mount
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
r3 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)
ioctl$PIO_UNIMAP(r3, 0x4b67, &(0x7f0000000780)={0x0, 0x0})
renameat(0xffffffffffffffff, &(0x7f0000000540)='./trace/instances/inst1/events/enable\x00', r2, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'lo\x00'})
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
sendmsg$MPTCP_PM_CMD_ADD_ADDR(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x14, r1, 0x800, 0x70bd2d, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x20040004}, 0x801)
r4 = syz_open_dev$loop(&(0x7f00000004c0), 0x1, 0x40000)
ioctl$BLKPG(r4, 0x1269, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
mount(&(0x7f0000000080)=@filename='none\x00', &(0x7f00000000c0)='./trace\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx-ioctl$PIO_UNIMAP-renameat-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$MPTCP_PM_CMD_ADD_ADDR-syz_open_dev$loop-ioctl$BLKPG
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
r3 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)
ioctl$PIO_UNIMAP(r3, 0x4b67, &(0x7f0000000780)={0x0, 0x0})
renameat(0xffffffffffffffff, &(0x7f0000000540)='./trace/instances/inst1/events/enable\x00', r2, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'lo\x00'})
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
sendmsg$MPTCP_PM_CMD_ADD_ADDR(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x14, r1, 0x800, 0x70bd2d, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x20040004}, 0x801)
r4 = syz_open_dev$loop(&(0x7f00000004c0), 0x1, 0x40000)
ioctl$BLKPG(r4, 0x1269, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx-ioctl$PIO_UNIMAP-renameat-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$MPTCP_PM_CMD_ADD_ADDR-syz_open_dev$loop
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
r3 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)
ioctl$PIO_UNIMAP(r3, 0x4b67, &(0x7f0000000780)={0x0, 0x0})
renameat(0xffffffffffffffff, &(0x7f0000000540)='./trace/instances/inst1/events/enable\x00', r2, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'lo\x00'})
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
sendmsg$MPTCP_PM_CMD_ADD_ADDR(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x14, r1, 0x800, 0x70bd2d, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x20040004}, 0x801)
syz_open_dev$loop(&(0x7f00000004c0), 0x1, 0x40000)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx-ioctl$PIO_UNIMAP-renameat-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$MPTCP_PM_CMD_ADD_ADDR
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
r3 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)
ioctl$PIO_UNIMAP(r3, 0x4b67, &(0x7f0000000780)={0x0, 0x0})
renameat(0xffffffffffffffff, &(0x7f0000000540)='./trace/instances/inst1/events/enable\x00', r2, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'lo\x00'})
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
sendmsg$MPTCP_PM_CMD_ADD_ADDR(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x14, r1, 0x800, 0x70bd2d, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x20040004}, 0x801)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx-ioctl$PIO_UNIMAP-renameat-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
r1 = openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
r2 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)
ioctl$PIO_UNIMAP(r2, 0x4b67, &(0x7f0000000780)={0x0, 0x0})
renameat(0xffffffffffffffff, &(0x7f0000000540)='./trace/instances/inst1/events/enable\x00', r1, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'lo\x00'})
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx-ioctl$PIO_UNIMAP-renameat-ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
r1 = openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
r2 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)
ioctl$PIO_UNIMAP(r2, 0x4b67, &(0x7f0000000780)={0x0, 0x0})
renameat(0xffffffffffffffff, &(0x7f0000000540)='./trace/instances/inst1/events/enable\x00', r1, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'lo\x00'})

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx-ioctl$PIO_UNIMAP-renameat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
r1 = openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
r2 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)
ioctl$PIO_UNIMAP(r2, 0x4b67, &(0x7f0000000780)={0x0, 0x0})
renameat(0xffffffffffffffff, &(0x7f0000000540)='./trace/instances/inst1/events/enable\x00', r1, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx-ioctl$PIO_UNIMAP
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
r1 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)
ioctl$PIO_UNIMAP(r1, 0x4b67, &(0x7f0000000780)={0x0, 0x0})

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)
openat$ptmx(0xffffffffffffff9c, 0x0, 0x403, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp-openat$dir
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)
openat$dir(0xffffffffffffff9c, 0x0, 0xa0000, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev-syz_genetlink_get_family_id$mptcp
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)
syz_genetlink_get_family_id$mptcp(&(0x7f0000000280), 0xffffffffffffffff)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev-writev
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)

program did not crash
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-writev
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x7, &(0x7f0000000240)={0x0, 0x0})
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program did not crash
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-rseq-writev-writev
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
rseq(&(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x5, 0x80, 0x7}}, 0x20, 0x0, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-setxattr$system_posix_acl-writev-writev
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
setxattr$system_posix_acl(0x0, &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000080), 0x24, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-setxattr$system_posix_acl-writev-writev
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', 0x0, &(0x7f0000000100), 0x24, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-socket$netlink-writev-writev
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): mkdirat-unshare-writev-writev
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
unshare(0x2a020400)
writev(0xffffffffffffffff, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(0xffffffffffffffff, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program did not crash
testing program (duration=6m0s, {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}}): mkdirat-socket$netlink-writev-writev
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./trace\x00', 0x1ff)
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): socket$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
testing program (duration=6m0s, {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}}): socket$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, 0x0, 0x0)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program did not crash
testing program (duration=6m0s, {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}}): socket$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{0x0}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program did not crash
testing program (duration=6m0s, {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}}): socket$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program did not crash
testing program (duration=6m0s, {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}}): socket$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {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}}): socket$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{0x0}], 0x1)

program did not crash
testing program (duration=6m0s, {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}}): socket$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)}], 0x1)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {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}}): socket$netlink-writev-writev
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
extracting C reproducer
testing compiled C program (duration=6m0s, {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}}): socket$netlink-writev-writev
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
extracting C reproducer
testing compiled C program (duration=6m0s, {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$netlink-writev-writev
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
validation run: crashed=true
testing program (duration=6m0s, {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$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
validation run: crashed=true
testing program (duration=6m0s, {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$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000080)=[{&(0x7f0000000040)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fdd411efc40800040000000000000000", 0x39}], 0x1)
writev(r0, &(0x7f00000001c0)=[{&(0x7f0000000400)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200000000000006040000000000f93132", 0x39}], 0x1)

program crashed: unregister_netdevice: waiting for DEV to become free
validation run: crashed=true
reproducing took 1h50m9.443155488s
repro crashed as (corrupted=false):
netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
unregister_netdevice: waiting for netdevsim3 to become free. Usage count = 2
ref_tracker: netdev@00000000fc9e30a3 has 1/1 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4499 [inline]
     netdev_tracker_alloc include/linux/netdevice.h:4511 [inline]
     netdev_get_by_index+0x84/0xdc net/core/dev.c:1027
     fib6_nh_init+0x258/0x14f0 net/ipv6/route.c:3615
     ip6_route_info_create_nh+0x13c/0x98c net/ipv6/route.c:3914
     addrconf_f6i_alloc+0x1e4/0x3b4 net/ipv6/route.c:4706
     ipv6_add_addr+0x484/0xdb0 net/ipv6/addrconf.c:1132
     addrconf_add_linklocal+0x1e0/0x378 net/ipv6/addrconf.c:3334
     addrconf_addr_gen+0x27c/0x2dc net/ipv6/addrconf.c:-1
     addrconf_init_auto_addrs+0x390/0x764 net/ipv6/addrconf.c:-1
     addrconf_notify+0x7a0/0xbe8 net/ipv6/addrconf.c:3775
     notifier_call_chain+0x1a4/0x624 kernel/notifier.c:85
     raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453
     call_netdevice_notifiers_info+0xb8/0x120 net/core/dev.c:2250
     call_netdevice_notifiers_extack net/core/dev.c:2288 [inline]
     call_netdevice_notifiers net/core/dev.c:2302 [inline]
     __dev_notify_flags+0x160/0x27c net/core/dev.c:9799
     netif_change_flags+0xd0/0x15c net/core/dev.c:9828
     do_setlink+0xc28/0x31e8 net/core/rtnetlink.c:3215
     rtnl_changelink net/core/rtnetlink.c:3849 [inline]
     __rtnl_newlink net/core/rtnetlink.c:4022 [inline]
     rtnl_newlink+0xd24/0x1144 net/core/rtnetlink.c:4159


final repro crashed as (corrupted=false):
netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
unregister_netdevice: waiting for netdevsim3 to become free. Usage count = 2
ref_tracker: netdev@00000000fc9e30a3 has 1/1 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4499 [inline]
     netdev_tracker_alloc include/linux/netdevice.h:4511 [inline]
     netdev_get_by_index+0x84/0xdc net/core/dev.c:1027
     fib6_nh_init+0x258/0x14f0 net/ipv6/route.c:3615
     ip6_route_info_create_nh+0x13c/0x98c net/ipv6/route.c:3914
     addrconf_f6i_alloc+0x1e4/0x3b4 net/ipv6/route.c:4706
     ipv6_add_addr+0x484/0xdb0 net/ipv6/addrconf.c:1132
     addrconf_add_linklocal+0x1e0/0x378 net/ipv6/addrconf.c:3334
     addrconf_addr_gen+0x27c/0x2dc net/ipv6/addrconf.c:-1
     addrconf_init_auto_addrs+0x390/0x764 net/ipv6/addrconf.c:-1
     addrconf_notify+0x7a0/0xbe8 net/ipv6/addrconf.c:3775
     notifier_call_chain+0x1a4/0x624 kernel/notifier.c:85
     raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453
     call_netdevice_notifiers_info+0xb8/0x120 net/core/dev.c:2250
     call_netdevice_notifiers_extack net/core/dev.c:2288 [inline]
     call_netdevice_notifiers net/core/dev.c:2302 [inline]
     __dev_notify_flags+0x160/0x27c net/core/dev.c:9799
     netif_change_flags+0xd0/0x15c net/core/dev.c:9828
     do_setlink+0xc28/0x31e8 net/core/rtnetlink.c:3215
     rtnl_changelink net/core/rtnetlink.c:3849 [inline]
     __rtnl_newlink net/core/rtnetlink.c:4022 [inline]
     rtnl_newlink+0xd24/0x1144 net/core/rtnetlink.c:4159