Extracting prog: 2m18.755564021s Minimizing prog: 26m0.786660879s Simplifying prog options: 0s Extracting C: 35.080916622s Simplifying C: 22m38.625179019s extracting reproducer from 78 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}}): sendmmsg-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-bind$ax25-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000)) r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) bind$ax25(r3, &(0x7f0000000f00)={{0x3, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, 0x3}, [@netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @default, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]}, 0x48) ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]}) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) program crashed: possible deadlock in ax25_device_event single: successfully extracted reproducer found reproducer with 13 syscalls minimizing guilty program testing program (duration=53.244884962s, {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}}): sendmmsg-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-bind$ax25-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$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, 0x10) ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000)) r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) bind$ax25(r2, &(0x7f0000000f00)={{0x3, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, 0x3}, [@netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @default, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]}, 0x48) ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]}) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.244884962s, {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}}): sendmmsg-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-bind$ax25-ioctl$sock_netrom_SIOCADDRT detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000)) r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) bind$ax25(r2, &(0x7f0000000f00)={{0x3, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, 0x3}, [@netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @default, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]}, 0x48) ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]}) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.244884962s, {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}}): sendmmsg-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-bind$ax25 detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$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, 0x10) ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000)) r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) bind$ax25(r2, &(0x7f0000000f00)={{0x3, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, 0x3}, [@netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @default, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]}, 0x48) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.244884962s, {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}}): sendmmsg-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000)) r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.244884962s, {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}}): sendmmsg-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25 detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$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, 0x10) ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000)) syz_init_net_socket$ax25(0x3, 0x2, 0xcc) program did not crash testing program (duration=53.244884962s, {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}}): sendmmsg-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$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, 0x10) ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000)) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=53.244884962s, {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}}): sendmmsg-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$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, 0x10) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=53.244884962s, {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}}): sendmmsg-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$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$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=53.244884962s, {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}}): sendmmsg-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(0xffffffffffffffff, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=53.244884962s, {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}}): sendmmsg-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=53.244884962s, {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}}): sendmmsg-syz_init_net_socket$bt_sco-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=53.244884962s, {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}}): sendmmsg-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x6820) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000)) r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.244884962s, {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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000)) r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.244884962s, {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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: socketpair$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$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=53.244884962s, {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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0) r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000)) r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=53.244884962s, {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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=53.244884962s, {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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r1, 0x8914, 0x0) r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=53.244884962s, {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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000)) r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=53.244884962s, {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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb simplifying C reproducer testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false 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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program did not crash testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false 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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program did not crash testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program did not crash testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false 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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program did not crash testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true 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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false 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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false 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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false 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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false 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$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.244884962s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb reproducing took 51m33.24835329s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline] BUG: KASAN: use-after-free in ax25_fillin_cb+0x394/0x568 net/ax25/af_ax25.c:495 Read of size 4 at addr ffff0000c1c4c838 by task syz-executor238/4034 CPU: 0 PID: 4034 Comm: syz-executor238 Not tainted 5.15.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 Call trace: dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106 print_address_description+0x78/0x30c mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0xec/0x15c mm/kasan/report.c:451 __asan_report_load4_noabort+0x44/0x50 mm/kasan/report_generic.c:308 ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline] ax25_fillin_cb+0x394/0x568 net/ax25/af_ax25.c:495 ax25_setsockopt+0x8d0/0xa5c net/ax25/af_ax25.c:690 __sys_setsockopt+0x2f8/0x4b0 net/socket.c:2203 __do_sys_setsockopt net/socket.c:2214 [inline] __se_sys_setsockopt net/socket.c:2211 [inline] __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Allocated by task 4032: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc mm/kasan/common.c:513 [inline] __kasan_kmalloc+0xb0/0xf0 mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:264 [inline] kmem_cache_alloc_trace+0x274/0x3fc mm/slub.c:3247 kmalloc include/linux/slab.h:604 [inline] kzalloc include/linux/slab.h:735 [inline] ax25_dev_device_up+0x5c/0x540 net/ax25/ax25_dev.c:55 ax25_device_event+0x504/0x590 net/ax25/af_ax25.c:139 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391 call_netdevice_notifiers_info net/core/dev.c:2049 [inline] call_netdevice_notifiers_extack net/core/dev.c:2061 [inline] call_netdevice_notifiers net/core/dev.c:2075 [inline] __dev_notify_flags+0x250/0x46c net/core/dev.c:-1 dev_change_flags+0xc8/0x154 net/core/dev.c:8929 dev_ifsioc+0x504/0xef4 net/core/dev_ioctl.c:324 dev_ioctl+0x4d0/0xc94 net/core/dev_ioctl.c:587 sock_do_ioctl+0x18c/0x240 net/socket.c:1154 sock_ioctl+0x5c8/0x87c net/socket.c:1257 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Freed by task 4033: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4c/0x84 mm/kasan/common.c:46 kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360 ____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0x128/0x1e8 mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0x170/0x40c mm/slub.c:4559 ax25_dev_put include/net/ax25.h:302 [inline] ax25_release+0x564/0x814 net/ax25/af_ax25.c:1062 __sock_release net/socket.c:649 [inline] sock_close+0xb4/0x1f8 net/socket.c:1336 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 The buggy address belongs to the object at ffff0000c1c4c800 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 56 bytes inside of 256-byte region [ffff0000c1c4c800, ffff0000c1c4c900) The buggy address belongs to the page: page:00000000c7ea531d refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101c4c head:00000000c7ea531d order:1 compound_mapcount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002480 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000c1c4c700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000c1c4c780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000c1c4c800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000c1c4c880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000c1c4c900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== Unable to handle kernel paging request at virtual address e4a002ae00001569 Mem abort info: ESR = 0x0000000096000021 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x21: alignment fault Data abort info: ISV = 0, ISS = 0x00000021 CM = 0, WnR = 0 [e4a002ae00001569] address between user and kernel address ranges Internal error: Oops: 0000000096000021 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4034 Comm: syz-executor238 Tainted: G B 5.15.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline] pc : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] pc : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] pc : __refcount_dec include/linux/refcount.h:338 [inline] pc : refcount_dec include/linux/refcount.h:359 [inline] pc : dev_put include/linux/netdevice.h:4197 [inline] pc : ax25_release+0x4f4/0x814 net/ax25/af_ax25.c:1061 lr : __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline] lr : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] lr : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] lr : __refcount_dec include/linux/refcount.h:338 [inline] lr : refcount_dec include/linux/refcount.h:359 [inline] lr : dev_put include/linux/netdevice.h:4197 [inline] lr : ax25_release+0x4ec/0x814 net/ax25/af_ax25.c:1061 sp : ffff80001f137a00 x29: ffff80001f137a20 x28: dfff800000000000 x27: ffff0000c605c080 x26: ffff0000c8b20028 x25: 0000000000000002 x24: 00000000ffffffff x23: e4a002ae00001569 x22: ffff0000c1c4c800 x21: ffff0000de3ac818 x20: ffff0000c605c000 x19: 1fffe00019164005 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000082d4b24 x15: 0000000000000002 x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800010448bc4 x8 : ffff0000c2d751c0 x7 : 0000000000000000 x6 : ffff80000837a08c x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800010448bb8 x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline] arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] __refcount_dec include/linux/refcount.h:338 [inline] refcount_dec include/linux/refcount.h:359 [inline] dev_put include/linux/netdevice.h:4197 [inline] ax25_release+0x4f4/0x814 net/ax25/af_ax25.c:1061 __sock_release net/socket.c:649 [inline] sock_close+0xb4/0x1f8 net/socket.c:1336 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: d503201f 9600bf4b 52800038 4b1803f8 (b87802f8) ---[ end trace 77023cbc03519729 ]--- ---------------- Code disassembly (best guess): 0: d503201f nop 4: 9600bf4b bl 0xfffffffff802fd30 8: 52800038 mov w24, #0x1 // #1 c: 4b1803f8 neg w24, w24 * 10: b87802f8 ldaddl w24, w24, [x23] <-- trapping instruction final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline] BUG: KASAN: use-after-free in ax25_fillin_cb+0x394/0x568 net/ax25/af_ax25.c:495 Read of size 4 at addr ffff0000c1c4c838 by task syz-executor238/4034 CPU: 0 PID: 4034 Comm: syz-executor238 Not tainted 5.15.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 Call trace: dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106 print_address_description+0x78/0x30c mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0xec/0x15c mm/kasan/report.c:451 __asan_report_load4_noabort+0x44/0x50 mm/kasan/report_generic.c:308 ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline] ax25_fillin_cb+0x394/0x568 net/ax25/af_ax25.c:495 ax25_setsockopt+0x8d0/0xa5c net/ax25/af_ax25.c:690 __sys_setsockopt+0x2f8/0x4b0 net/socket.c:2203 __do_sys_setsockopt net/socket.c:2214 [inline] __se_sys_setsockopt net/socket.c:2211 [inline] __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Allocated by task 4032: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc mm/kasan/common.c:513 [inline] __kasan_kmalloc+0xb0/0xf0 mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:264 [inline] kmem_cache_alloc_trace+0x274/0x3fc mm/slub.c:3247 kmalloc include/linux/slab.h:604 [inline] kzalloc include/linux/slab.h:735 [inline] ax25_dev_device_up+0x5c/0x540 net/ax25/ax25_dev.c:55 ax25_device_event+0x504/0x590 net/ax25/af_ax25.c:139 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391 call_netdevice_notifiers_info net/core/dev.c:2049 [inline] call_netdevice_notifiers_extack net/core/dev.c:2061 [inline] call_netdevice_notifiers net/core/dev.c:2075 [inline] __dev_notify_flags+0x250/0x46c net/core/dev.c:-1 dev_change_flags+0xc8/0x154 net/core/dev.c:8929 dev_ifsioc+0x504/0xef4 net/core/dev_ioctl.c:324 dev_ioctl+0x4d0/0xc94 net/core/dev_ioctl.c:587 sock_do_ioctl+0x18c/0x240 net/socket.c:1154 sock_ioctl+0x5c8/0x87c net/socket.c:1257 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Freed by task 4033: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4c/0x84 mm/kasan/common.c:46 kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360 ____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0x128/0x1e8 mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0x170/0x40c mm/slub.c:4559 ax25_dev_put include/net/ax25.h:302 [inline] ax25_release+0x564/0x814 net/ax25/af_ax25.c:1062 __sock_release net/socket.c:649 [inline] sock_close+0xb4/0x1f8 net/socket.c:1336 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 The buggy address belongs to the object at ffff0000c1c4c800 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 56 bytes inside of 256-byte region [ffff0000c1c4c800, ffff0000c1c4c900) The buggy address belongs to the page: page:00000000c7ea531d refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101c4c head:00000000c7ea531d order:1 compound_mapcount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002480 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000c1c4c700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000c1c4c780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000c1c4c800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000c1c4c880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000c1c4c900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== Unable to handle kernel paging request at virtual address e4a002ae00001569 Mem abort info: ESR = 0x0000000096000021 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x21: alignment fault Data abort info: ISV = 0, ISS = 0x00000021 CM = 0, WnR = 0 [e4a002ae00001569] address between user and kernel address ranges Internal error: Oops: 0000000096000021 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4034 Comm: syz-executor238 Tainted: G B 5.15.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline] pc : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] pc : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] pc : __refcount_dec include/linux/refcount.h:338 [inline] pc : refcount_dec include/linux/refcount.h:359 [inline] pc : dev_put include/linux/netdevice.h:4197 [inline] pc : ax25_release+0x4f4/0x814 net/ax25/af_ax25.c:1061 lr : __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline] lr : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] lr : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] lr : __refcount_dec include/linux/refcount.h:338 [inline] lr : refcount_dec include/linux/refcount.h:359 [inline] lr : dev_put include/linux/netdevice.h:4197 [inline] lr : ax25_release+0x4ec/0x814 net/ax25/af_ax25.c:1061 sp : ffff80001f137a00 x29: ffff80001f137a20 x28: dfff800000000000 x27: ffff0000c605c080 x26: ffff0000c8b20028 x25: 0000000000000002 x24: 00000000ffffffff x23: e4a002ae00001569 x22: ffff0000c1c4c800 x21: ffff0000de3ac818 x20: ffff0000c605c000 x19: 1fffe00019164005 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000082d4b24 x15: 0000000000000002 x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800010448bc4 x8 : ffff0000c2d751c0 x7 : 0000000000000000 x6 : ffff80000837a08c x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800010448bb8 x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline] arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] __refcount_dec include/linux/refcount.h:338 [inline] refcount_dec include/linux/refcount.h:359 [inline] dev_put include/linux/netdevice.h:4197 [inline] ax25_release+0x4f4/0x814 net/ax25/af_ax25.c:1061 __sock_release net/socket.c:649 [inline] sock_close+0xb4/0x1f8 net/socket.c:1336 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: d503201f 9600bf4b 52800038 4b1803f8 (b87802f8) ---[ end trace 77023cbc03519729 ]--- ---------------- Code disassembly (best guess): 0: d503201f nop 4: 9600bf4b bl 0xfffffffff802fd30 8: 52800038 mov w24, #0x1 // #1 c: 4b1803f8 neg w24, w24 * 10: b87802f8 ldaddl w24, w24, [x23] <-- trapping instruction