Extracting prog: 41.965227181s
Minimizing prog: 25m10.529592299s
Simplifying prog options: 4m19.604446153s
Extracting C: 1m6.034560507s
Simplifying C: 0s


extracting reproducer from 37 programs
first checking the prog from the crash report
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r3, 0x890b, &(0x7f00000007c0)={@dev={0xbb, 0xbb, 0xbb, 0x1, 0x0}, 0x5, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bpq0, 0x5, [@rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @null, @null, @null, @null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @default]})
connect$rose(r3, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program crashed: KASAN: use-after-free Read in rose_get_neigh
single: successfully extracted reproducer
found reproducer with 10 syscalls
minimizing guilty program
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r3, 0x890b, &(0x7f00000007c0)={@dev={0xbb, 0xbb, 0xbb, 0x1, 0x0}, 0x5, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bpq0, 0x5, [@rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @null, @null, @null, @null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @default]})

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r3, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program crashed: KASAN: use-after-free Read in rose_get_neigh
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
connect$rose(0xffffffffffffffff, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$rose(0xb, 0x5, 0x0)
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r2, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
ioctl$sock_rose_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r2, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
r1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r1, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r2, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r3, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(0xffffffffffffffff, 0x8914, &(0x7f0000000000))
r1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r1, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r2, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080))
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000))
r1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r1, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r2, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000))
r1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r1, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r2, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000))
r1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r1, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r2, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r3, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, 0x0, 0x0)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r3, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, 0x0)
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r3, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, 0x0)
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r3, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r3, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=53.808208846s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
program did not crash
simplifying guilty program options
testing program (duration=53.808208846s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r3, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r3, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
testing program (duration=53.808208846s, {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$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$rose-ioctl$sock_rose_SIOCADDRT-syz_init_net_socket$rose-connect$rose
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
ioctl$sock_rose_SIOCADDRT(r2, 0x890b, &(0x7f0000000380)={@remote={0xcc, 0xcc, 0xcc, 0xcc, 0x0}, 0x6, @null, @bpq0, 0x0, [@bcast, @bcast, @null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]})
r3 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
connect$rose(r3, &(0x7f0000000040)=@short={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @null}, 0x1c)

program did not crash
reproducing took 31m18.133863932s
repro crashed as (corrupted=false):
IPv6: ADDRCONF(NETDEV_CHANGE): bpq0: link becomes ready
==================================================================
BUG: KASAN: use-after-free in rose_get_neigh+0x17e/0x550 net/rose/rose_route.c:692
Read of size 1 at addr ffff888027ee3430 by task syz.3.42/4484

CPU: 1 PID: 4484 Comm: syz.3.42 Not tainted 6.1.135-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0xa8/0x220 mm/kasan/report.c:427
 kasan_report+0x10b/0x140 mm/kasan/report.c:531
 rose_get_neigh+0x17e/0x550 net/rose/rose_route.c:692
 rose_connect+0x412/0x1380 net/rose/af_rose.c:816
 __sys_connect_file net/socket.c:2011 [inline]
 __sys_connect+0x389/0x410 net/socket.c:2028
 __do_sys_connect net/socket.c:2038 [inline]
 __se_sys_connect net/socket.c:2035 [inline]
 __x64_sys_connect+0x76/0x80 net/socket.c:2035
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fce7d98e969
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:00007fce7e872038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007fce7dbb5fa0 RCX: 00007fce7d98e969
RDX: 000000000000001c RSI: 0000200000000040 RDI: 0000000000000008
RBP: 00007fce7da10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fce7dbb5fa0 R15: 00007ffd080caf18
 </TASK>

Allocated by task 4413:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:383
 kmalloc include/linux/slab.h:563 [inline]
 rose_add_node+0x227/0xdb0 net/rose/rose_route.c:85
 rose_rt_ioctl+0xa4c/0xe90 net/rose/rose_route.c:747
 rose_ioctl+0x27a/0x790 net/rose/af_rose.c:1380
 sock_do_ioctl+0xd3/0x2f0 net/socket.c:1204
 sock_ioctl+0x4ed/0x6e0 net/socket.c:1321
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Freed by task 4479:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x2d/0x50 mm/kasan/generic.c:516
 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1724 [inline]
 slab_free_freelist_hook+0x131/0x1a0 mm/slub.c:1750
 slab_free mm/slub.c:3661 [inline]
 __kmem_cache_free+0xb6/0x1f0 mm/slub.c:3674
 rose_rt_device_down+0x3e5/0x430 net/rose/rose_route.c:522
 rose_device_event+0x600/0x690 net/rose/af_rose.c:248
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:455
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 __dev_notify_flags+0x178/0x2d0 net/core/dev.c:-1
 dev_change_flags+0xe3/0x1a0 net/core/dev.c:8702
 dev_ifsioc+0x159/0xe90 net/core/dev_ioctl.c:327
 dev_ioctl+0x578/0xea0 net/core/dev_ioctl.c:588
 sock_do_ioctl+0x222/0x2f0 net/socket.c:1218
 sock_ioctl+0x4ed/0x6e0 net/socket.c:1321
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff888027ee3400
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 48 bytes inside of
 512-byte region [ffff888027ee3400, ffff888027ee3600)

The buggy address belongs to the physical page:
page:ffffea00009fb800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x27ee0
head:ffffea00009fb800 order:2 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888017441c80
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 4366, tgid 4366 (syz-executor), ts 115629431172, free_ts 113968079089
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2532
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x1a26/0x1ac0 mm/page_alloc.c:4328
 __alloc_pages+0x1df/0x4e0 mm/page_alloc.c:5606
 alloc_slab_page+0x5d/0x160 mm/slub.c:1794
 allocate_slab mm/slub.c:1939 [inline]
 new_slab+0x87/0x2c0 mm/slub.c:1992
 ___slab_alloc+0xbc6/0x1220 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 __kmem_cache_alloc_node+0x1a0/0x260 mm/slub.c:3437
 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 kernfs_fop_open+0x3f1/0xcc0 fs/kernfs/file.c:672
 do_dentry_open+0x7e9/0x10d0 fs/open.c:882
 do_open fs/namei.c:3626 [inline]
 path_openat+0x25c6/0x2e70 fs/namei.c:3783
 do_filp_open+0x1c1/0x3c0 fs/namei.c:3810
 do_sys_openat2+0x142/0x490 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1345
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1459 [inline]
 free_pcp_prepare mm/page_alloc.c:1509 [inline]
 free_unref_page_prepare+0x8b4/0x9a0 mm/page_alloc.c:3384
 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3479
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x144/0x160 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1e/0x80 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x4b/0x480 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 __kmem_cache_alloc_node+0x140/0x260 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:935 [inline]
 __kmalloc+0xa0/0x240 mm/slab_common.c:949
 kmalloc include/linux/slab.h:568 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 fib6_info_alloc+0x2e/0xe0 net/ipv6/ip6_fib.c:156
 ip6_route_info_create+0x44f/0x1210 net/ipv6/route.c:3794
 ip6_route_add+0x24/0x130 net/ipv6/route.c:3890
 addrconf_prefix_route net/ipv6/addrconf.c:2443 [inline]
 add_v4_addrs+0x8f0/0xc60 net/ipv6/addrconf.c:3215
 addrconf_sit_config net/ipv6/addrconf.c:3464 [inline]
 addrconf_init_auto_addrs+0x387/0xb30 net/ipv6/addrconf.c:3501
 addrconf_notify+0xaca/0xf40 net/ipv6/addrconf.c:3688
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:455
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 __dev_notify_flags+0x178/0x2d0 net/core/dev.c:-1

Memory state around the buggy address:
 ffff888027ee3300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888027ee3380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888027ee3400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                     ^
 ffff888027ee3480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888027ee3500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

final repro crashed as (corrupted=false):
IPv6: ADDRCONF(NETDEV_CHANGE): bpq0: link becomes ready
==================================================================
BUG: KASAN: use-after-free in rose_get_neigh+0x17e/0x550 net/rose/rose_route.c:692
Read of size 1 at addr ffff888027ee3430 by task syz.3.42/4484

CPU: 1 PID: 4484 Comm: syz.3.42 Not tainted 6.1.135-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0xa8/0x220 mm/kasan/report.c:427
 kasan_report+0x10b/0x140 mm/kasan/report.c:531
 rose_get_neigh+0x17e/0x550 net/rose/rose_route.c:692
 rose_connect+0x412/0x1380 net/rose/af_rose.c:816
 __sys_connect_file net/socket.c:2011 [inline]
 __sys_connect+0x389/0x410 net/socket.c:2028
 __do_sys_connect net/socket.c:2038 [inline]
 __se_sys_connect net/socket.c:2035 [inline]
 __x64_sys_connect+0x76/0x80 net/socket.c:2035
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fce7d98e969
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:00007fce7e872038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007fce7dbb5fa0 RCX: 00007fce7d98e969
RDX: 000000000000001c RSI: 0000200000000040 RDI: 0000000000000008
RBP: 00007fce7da10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fce7dbb5fa0 R15: 00007ffd080caf18
 </TASK>

Allocated by task 4413:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:383
 kmalloc include/linux/slab.h:563 [inline]
 rose_add_node+0x227/0xdb0 net/rose/rose_route.c:85
 rose_rt_ioctl+0xa4c/0xe90 net/rose/rose_route.c:747
 rose_ioctl+0x27a/0x790 net/rose/af_rose.c:1380
 sock_do_ioctl+0xd3/0x2f0 net/socket.c:1204
 sock_ioctl+0x4ed/0x6e0 net/socket.c:1321
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Freed by task 4479:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x2d/0x50 mm/kasan/generic.c:516
 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1724 [inline]
 slab_free_freelist_hook+0x131/0x1a0 mm/slub.c:1750
 slab_free mm/slub.c:3661 [inline]
 __kmem_cache_free+0xb6/0x1f0 mm/slub.c:3674
 rose_rt_device_down+0x3e5/0x430 net/rose/rose_route.c:522
 rose_device_event+0x600/0x690 net/rose/af_rose.c:248
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:455
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 __dev_notify_flags+0x178/0x2d0 net/core/dev.c:-1
 dev_change_flags+0xe3/0x1a0 net/core/dev.c:8702
 dev_ifsioc+0x159/0xe90 net/core/dev_ioctl.c:327
 dev_ioctl+0x578/0xea0 net/core/dev_ioctl.c:588
 sock_do_ioctl+0x222/0x2f0 net/socket.c:1218
 sock_ioctl+0x4ed/0x6e0 net/socket.c:1321
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff888027ee3400
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 48 bytes inside of
 512-byte region [ffff888027ee3400, ffff888027ee3600)

The buggy address belongs to the physical page:
page:ffffea00009fb800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x27ee0
head:ffffea00009fb800 order:2 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888017441c80
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 4366, tgid 4366 (syz-executor), ts 115629431172, free_ts 113968079089
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2532
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x1a26/0x1ac0 mm/page_alloc.c:4328
 __alloc_pages+0x1df/0x4e0 mm/page_alloc.c:5606
 alloc_slab_page+0x5d/0x160 mm/slub.c:1794
 allocate_slab mm/slub.c:1939 [inline]
 new_slab+0x87/0x2c0 mm/slub.c:1992
 ___slab_alloc+0xbc6/0x1220 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 __kmem_cache_alloc_node+0x1a0/0x260 mm/slub.c:3437
 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 kernfs_fop_open+0x3f1/0xcc0 fs/kernfs/file.c:672
 do_dentry_open+0x7e9/0x10d0 fs/open.c:882
 do_open fs/namei.c:3626 [inline]
 path_openat+0x25c6/0x2e70 fs/namei.c:3783
 do_filp_open+0x1c1/0x3c0 fs/namei.c:3810
 do_sys_openat2+0x142/0x490 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1345
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1459 [inline]
 free_pcp_prepare mm/page_alloc.c:1509 [inline]
 free_unref_page_prepare+0x8b4/0x9a0 mm/page_alloc.c:3384
 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3479
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x144/0x160 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1e/0x80 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x4b/0x480 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 __kmem_cache_alloc_node+0x140/0x260 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:935 [inline]
 __kmalloc+0xa0/0x240 mm/slab_common.c:949
 kmalloc include/linux/slab.h:568 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 fib6_info_alloc+0x2e/0xe0 net/ipv6/ip6_fib.c:156
 ip6_route_info_create+0x44f/0x1210 net/ipv6/route.c:3794
 ip6_route_add+0x24/0x130 net/ipv6/route.c:3890
 addrconf_prefix_route net/ipv6/addrconf.c:2443 [inline]
 add_v4_addrs+0x8f0/0xc60 net/ipv6/addrconf.c:3215
 addrconf_sit_config net/ipv6/addrconf.c:3464 [inline]
 addrconf_init_auto_addrs+0x387/0xb30 net/ipv6/addrconf.c:3501
 addrconf_notify+0xaca/0xf40 net/ipv6/addrconf.c:3688
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:455
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 __dev_notify_flags+0x178/0x2d0 net/core/dev.c:-1

Memory state around the buggy address:
 ffff888027ee3300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888027ee3380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888027ee3400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                     ^
 ffff888027ee3480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888027ee3500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================