0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:11 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:11 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffff00000000}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 310.010924][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 310.031598][T17592] batman_adv: Cannot find parent device [ 310.160706][T17592] batman_adv: batadv0: Adding interface: gretap11 [ 310.181937][T17592] batman_adv: batadv0: The MTU of interface gretap11 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 310.267833][T17592] batman_adv: batadv0: Not using interface gretap11 (retrying later): interface not active 06:52:11 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:11 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00000000000700", 0x22}, 0x60) 06:52:11 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:11 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 310.387815][T17624] batman_adv: Cannot find parent device 06:52:11 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 310.478037][T17624] batman_adv: batadv0: Adding interface: gretap14 [ 310.527333][T17624] batman_adv: batadv0: The MTU of interface gretap14 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 310.600391][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:12 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:12 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 310.706117][T17624] batman_adv: batadv0: Not using interface gretap14 (retrying later): interface not active [ 310.852007][T17639] batman_adv: Cannot find parent device 06:52:12 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(0xffffffffffffffff, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:12 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d0000000700", 0x22}, 0x60) 06:52:12 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 310.911584][T17639] batman_adv: batadv0: Adding interface: gretap12 [ 310.930052][T17639] batman_adv: batadv0: The MTU of interface gretap12 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:12 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 311.052244][T17639] batman_adv: batadv0: Not using interface gretap12 (retrying later): interface not active 06:52:12 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(0xffffffffffffffff, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:12 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:12 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:12 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d000000000700", 0x22}, 0x60) 06:52:12 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x11}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 311.383220][T17661] batman_adv: Cannot find parent device 06:52:13 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(0xffffffffffffffff, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 311.469053][T17661] batman_adv: batadv0: Adding interface: gretap15 [ 311.502259][T17661] batman_adv: batadv0: The MTU of interface gretap15 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:13 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d0000000000000700", 0x22}, 0x60) 06:52:13 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc0}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 311.644501][T17661] batman_adv: batadv0: Not using interface gretap15 (retrying later): interface not active 06:52:13 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:13 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 311.920711][T17680] batman_adv: Cannot find parent device 06:52:13 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:13 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:13 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 312.000975][T17680] batman_adv: batadv0: Adding interface: gretap13 [ 312.032053][T17680] batman_adv: batadv0: The MTU of interface gretap13 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 312.152677][T17680] batman_adv: batadv0: Not using interface gretap13 (retrying later): interface not active 06:52:13 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:13 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d000000000700", 0x22}, 0x60) [ 312.282517][T17712] batman_adv: Cannot find parent device 06:52:13 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x700}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:13 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:13 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 312.354042][T17712] batman_adv: batadv0: Adding interface: gretap16 [ 312.375682][T17712] batman_adv: batadv0: The MTU of interface gretap16 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:14 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1100}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:14 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080), 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 312.553374][T17712] batman_adv: batadv0: Not using interface gretap16 (retrying later): interface not active 06:52:14 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00000000000700", 0x22}, 0x60) 06:52:14 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:14 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:14 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:14 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d000000000000000700", 0x22}, 0x60) 06:52:14 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2000}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:14 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080), 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:14 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:14 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:14 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080), 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:14 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:14 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3e80}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:14 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:14 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:14 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(0xffffffffffffffff, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:14 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00000000000700", 0x22}, 0x60) 06:52:14 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) socket(0x10, 0x80002, 0x0) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:15 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:15 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3ec0}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:15 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(0xffffffffffffffff, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:15 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:15 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d0000000000000700", 0x22}, 0x60) [ 313.833307][T17780] batman_adv: Cannot find parent device 06:52:15 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(0xffffffffffffffff, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:15 executing program 2: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080), 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:15 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803e}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:15 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d000000000000000007", 0x22}, 0x60) 06:52:15 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:15 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:15 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) socket(0x10, 0x80002, 0x0) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:15 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:15 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc000}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:15 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:15 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:16 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:16 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 314.587194][T17824] batman_adv: Cannot find parent device 06:52:16 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d0000000000000700", 0x22}, 0x60) 06:52:16 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc03e}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:16 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:16 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:16 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) socket(0x10, 0x80002, 0x0) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:16 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) socket(0x10, 0x80002, 0x0) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:16 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x33fe0}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:16 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d000000000000000700", 0x22}, 0x60) 06:52:16 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x0, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:16 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:16 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x0, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 315.325670][T17860] batman_adv: Cannot find parent device 06:52:16 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x34000}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:16 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:17 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x0, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:17 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 315.654893][T17864] batman_adv: Cannot find parent device 06:52:17 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:17 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:17 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) socket(0x10, 0x80002, 0x0) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:17 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40000}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:17 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, 0x0, 0x0) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:17 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:17 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d000000000000000700", 0x22}, 0x60) 06:52:17 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x400300}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:17 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, 0x0, 0x0) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:17 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) socket(0x10, 0x80002, 0x0) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 316.375507][T17913] batman_adv: Cannot find parent device 06:52:17 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d000000000000000007", 0x22}, 0x60) 06:52:18 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, 0x0, 0x0) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:18 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf0ff7f}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 316.740086][T17914] batman_adv: Cannot find parent device [ 316.863334][ T3239] ieee802154 phy0 wpan0: encryption failed: -22 [ 316.869951][ T3239] ieee802154 phy1 wpan1: encryption failed: -22 [ 317.078771][T17928] batman_adv: Cannot find parent device 06:52:18 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:18 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) socket(0x10, 0x80002, 0x0) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:18 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x0, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:18 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:18 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfeffff}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:18 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) socket(0x10, 0x80002, 0x0) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:19 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:19 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x0, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:19 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000000}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 317.657897][T17967] batman_adv: Cannot find parent device 06:52:19 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x0, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:19 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 318.042164][T17966] batman_adv: Cannot find parent device 06:52:19 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(0xffffffffffffffff, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 318.281165][T17977] batman_adv: Cannot find parent device [ 318.345607][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:19 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:19 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:19 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d000000000000000007", 0x22}, 0x60) 06:52:19 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7000000}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:20 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) socket(0x10, 0x80002, 0x0) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:20 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(0xffffffffffffffff, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:20 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:20 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x11000000}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 318.860304][T18021] batman_adv: Cannot find parent device [ 318.884223][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:20 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20000000}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:20 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:20 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(0xffffffffffffffff, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 319.248245][T18023] batman_adv: Cannot find parent device 06:52:20 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 319.368604][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 319.540300][T18026] batman_adv: Cannot find parent device 06:52:21 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:21 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:21 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7ffff000}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:21 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x2) 06:52:21 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:21 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, 0x0, 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:21 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803e0000}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 319.878009][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:21 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x5f) [ 320.054834][T18075] batman_adv: Cannot find parent device 06:52:21 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, 0x0, 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:21 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x200001a0) 06:52:21 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc0000000}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 320.412107][T18078] batman_adv: Cannot find parent device [ 320.418081][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 320.481194][T18078] batman_adv: batadv0: Adding interface: gretap19 06:52:22 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) getsockopt$nfc_llcp(r2, 0x118, 0x3, &(0x7f0000000000)=""/104, 0x68) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 320.515978][T18078] batman_adv: batadv0: The MTU of interface gretap19 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 320.545260][T18078] batman_adv: batadv0: Not using interface gretap19 (retrying later): interface not active 06:52:22 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 320.711334][T18082] batman_adv: Cannot find parent device 06:52:22 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:22 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc03e0000}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:22 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, 0x0, 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:22 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 320.939704][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:22 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x1, 0x0, 0x6, 0xaf, 0x0, "ef5a9d915feeed36594a8c9f27b9afb59d8f85d47cedbb6d00001d00000000000800", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r2, &(0x7f0000000000)={0x27, 0x0, 0x1, 0x1, 0x7, 0x8, "fa138608b894ac9418892094d9005df9d74e10aec339018eec58fff5dda30832df3df40c566b131bf11532b93926bb770f0f88d2ec5e316893b2737d129d3a", 0x33}, 0x60) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 321.088938][T18121] batman_adv: Cannot find parent device 06:52:22 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe03f0300}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 321.200191][T18121] batman_adv: batadv0: Adding interface: gretap20 [ 321.222388][T18121] batman_adv: batadv0: The MTU of interface gretap20 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:22 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:22 executing program 1: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r1 = accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x21}, 0x60) [ 321.309162][T18121] batman_adv: batadv0: Not using interface gretap20 (retrying later): interface not active 06:52:22 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 321.392600][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 321.412452][T18133] batman_adv: Cannot find parent device 06:52:22 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xeffdffff}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:23 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf5ffffff}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:23 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000000)={0x27, 0x8000, 0x0, 0x4, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 321.847617][T18136] batman_adv: Cannot find parent device [ 321.985249][T18161] batman_adv: Cannot find parent device [ 322.034479][T18161] batman_adv: batadv0: Adding interface: gretap21 [ 322.041218][T18161] batman_adv: batadv0: The MTU of interface gretap21 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 322.102590][T18161] batman_adv: batadv0: Not using interface gretap21 (retrying later): interface not active 06:52:23 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:23 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:23 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:23 executing program 1: r0 = openat$full(0xffffffffffffff9c, &(0x7f0000006f80), 0x2ea602, 0x0) sendmsg$RDMA_NLDEV_CMD_SYS_GET(r0, &(0x7f0000007080)={&(0x7f0000006fc0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000007040)={&(0x7f0000007000)={0x30, 0x1406, 0x4, 0x70bd2a, 0x25dfdbfe, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}]}, 0x30}, 0x1, 0x0, 0x0, 0x84}, 0x5) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r2 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r2, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r2, 0x0) sendmmsg$nfc_llcp(r1, &(0x7f0000006dc0)=[{&(0x7f0000000000)={0x27, 0x0, 0x0, 0x5, 0x0, 0x4, "ed83421fa001b85b3f141e54320de6d3378f2346e67a08264471a5d7bf0c2d44bb4265abafb46f69c536b99fc8b978d4ce5ea4deeaa573479aa80bf7a03c7c", 0x2}, 0x60, &(0x7f0000000340)=[{&(0x7f0000000080)="28f9b4e797968a27bcd769cb8c50aad1cbc0ab4e2d597693c08fd6ac1c615670b31de5139a8e3a56afdafa300014222782914f7807050cab3f5003f3681ef869517cb0f6", 0x44}, {&(0x7f0000000100)="a3b03cc0e6586e037cef6f667011d04561ed69a41b98ce8bc20f92ac761a77d73f683fca323067993bea80d4971119bb1249921ee627853100f822fda229ee", 0x3f}, {&(0x7f00000001c0)="86ef7d5a4c0ad812f835a8123652da9a75b28636e760b1e24960e644ca666987c50e1f9009d226e28f14fea393584f1128890dc82e6a0247cc90a4465064ff8803b43513dbc0d6e0e08a619ca838106cff96f8b88ecf70f4fc8b321b9fe54cb37f5e4eaf9e8d24ae0a04ae7ede0b20d360f481a26f4fcab552aec21149e114971ae1e65800b0f3ef6316db6597a39497a265314c8c3614416765f93ec957d5d40f3d17c3b5024cf5db18db07b0800c4203b48d608a415b9a711f377a4d5e6b4f535adc7fad03da217c8d10f1", 0xcc}, {&(0x7f00000002c0)="5c44e955fee28e9855f0cc60475fe1f324276b3307f0ce809fb29adf56586be396d353e62446995274103c4ca620a18efea7c48779d9f9af12955c72fd0b04c1cbe54fd37a678e62", 0x48}], 0x4, 0x0, 0x0, 0x88031}, {&(0x7f0000000380)={0x27, 0x0, 0x0, 0x5, 0x9, 0xf2, "73a42dd9ed2a0a6587b7e44544f3904dad4ab084682b976b9c7a9e25a08a6c43fe7f7f14470137fff2d077fc92576d93c595c9c4ae4bf07bcb5cb3ee4065ff", 0x9}, 0x60, &(0x7f0000000680)=[{&(0x7f0000000400)="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", 0xfc}, {&(0x7f0000000500)="3591c9fe5528e86c2f75026df5afd2830da5e7ad92c77075d5fc2601f2d777348f312347c03bded2734b0ead9ac7f06c136ebbf7e284e0ae4b9723c5e89e01fdbfe53a90b9b859a7a28e6ed8e18feab1c9bb4b0f202a84f7", 0x58}, {&(0x7f0000000580)="bcf6c1bdfa7cc31193c7b1c012973d96aa565db65fcee5ed9ef11e721e64de3ba2088d03fb0491b01e1c3539de1ad9a94c65c7b9d37d0b83850cf9e7e1c98bd116396d9ebd9ee6881d8e4c819052b738bf289a4ae61e9314c1c982c3330d729291c35970aa0717baed8c7371c8ab0cb049fe8c99c5a8e7943dc7614967259ac898d95ef5c27161b3f223185298e98328a9a29e050c8a5db1215983be2045b8af88e6ac67e3181ba8cadfeffa514078dcd049cb4a8e6899413da38202d5973ada8a25d9f517779ef295f8434cd9a16c68c27c90fd17befc7521c64050", 0xdc}], 0x3, &(0x7f00000006c0)={0xa0, 0x88, 0x28, "ac498ef93c12ef219b8d4262bfb25fc4f1d5f3e93aa33e200300e66067e213e99e46f24fedffb7a9f7354f3877d0cd144b756e932129539615f2470fa5f412891ec79af25f1287f6433c9f5480b44e96dd7fc69cffcad6203b2bde7bf8940ba4d1095d87713f2b6e3aac98775dd92aa089210924b118ba5dad608053af412f7f5a86172d54e1ae7687e3b4fc"}, 0xa0, 0x8c4}, {&(0x7f0000000780)={0x27, 0x1, 0x1, 0x4, 0x7, 0x1f, "6540b5688f6092a66dea198406f9bd440d5efb77a9747820212d08db64d40d9d75251ee595bd37372d350fcd1e530a11674e93be09dab8f47907292db5b7a8", 0x22}, 0x60, &(0x7f0000001900)=[{&(0x7f0000000800)="2d83628863a8733c", 0x8}, {&(0x7f0000000840)="83d66bb030d5870ef3c2d42cbd0788ad5e0468eba798edf3870e8b481475da5a141cef76eff18f202cc4805bbe9009f31ee9baa2cec41a868205b5ca9cd79769cc13311624fa26f840fc848f106e06f08522540bd8ab660aedf59ac607b53629c9655e642e36ed2b34295b88f1a1db619cb946ba5b6f17140d2e65414e334df179eaf669f7e93c7983e745acd800d0056c2978186ab5c22f94964f016ba2432335f77d7ab9b7b308f45463f2", 0xac}, 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{&(0x7f0000005a00)="906ae44d096e452774a2d8e5042b53de7a0e9a28c38284272529da5d34c224dae87defb67a7f5f03e0ea93099d9eb483f53d10cac00c0c2d0dd7685d88286b345cfe785390926a9d37b6aab24d73ec4a7cc54d5d9dbb2539b7fcd04d235935bfa74d036f30077e779b1690ec15ba2f5f3bf38cbfecd54d855c08c48968d06ce2980ee3ed883f15f7ab0d8ff52dea3a03bf5ae2c828b31d8117611f3f4b165b8803d5b18714a6ccfe4c114ae2acab59de02e910d06abfb337d1d5477725c8fc317ae8f0a2f82cb66d13fb2f8d057c7bc56734f10ce8aabe6f761647ec5d3e2714d4c2e60499", 0xe5}, {&(0x7f0000005b00)="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", 0xff}, {&(0x7f0000005c00)="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", 0x1000}], 0x5, &(0x7f0000006c80)={0x108, 0x1b, 0x7f, "205f89e7aecdbb567958a4c7f4d643d974280c574aad5f6c365adf37f4ab391955037874612a00c10cf176eb5bb04cbb736e4a8237ab68ec7cad39af613b94ab62e4e559d04a3e9a50c6fea13e331b13755fc3014240c2f18fd4d60e3efb1d61d78bed51c8bd6a2471548d1a3b91907d51fa89acfab8f545f465e385ba94b0fcff70d2b42119a9ae3d00345db520471c445a14decb9d8e730a017ea40ba744cca87e76cadd293f5280fac5a72bcd7cfd9a5aa52aeb8783b9cd988b651f10728215cdb3db708476c2b1a60aa4baecebe328f1a3a36766618ef0b2b7bd025dab2c89b3ab84749a7b971fb7685d5e0b957ffaa5"}, 0x108}], 0x7, 0x40000) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:23 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffdef}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:23 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 322.289862][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:24 executing program 1: ioctl$sock_ipv4_tunnel_SIOCDELTUNNEL(0xffffffffffffffff, 0x89f2, &(0x7f0000001380)={'erspan0\x00', &(0x7f0000001280)={'gretap0\x00', 0x0, 0x20, 0x7800, 0x5, 0x97b, {{0x2e, 0x4, 0x0, 0x26, 0xb8, 0x68, 0x0, 0x6, 0x4, 0x0, @initdev={0xac, 0x1e, 0x1, 0x0}, @initdev={0xac, 0x1e, 0x1, 0x0}, {[@timestamp_addr={0x44, 0x44, 0xf4, 0x1, 0x3, [{@remote, 0x401}, {@multicast1, 0x8}, {@multicast2, 0x7fffffff}, {@empty, 0x7f}, {@dev={0xac, 0x14, 0x14, 0x35}, 0xe0000}, {@broadcast, 0x4}, {@empty, 0x80000000}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0x4}]}, @timestamp_prespec={0x44, 0xc, 0x97, 0x3, 0x8, [{@remote, 0x10000}]}, @timestamp={0x44, 0x20, 0xaa, 0x0, 0x5, [0x1, 0x80000, 0x80000001, 0x4, 0x1000, 0xc3, 0x7fff]}, @timestamp={0x44, 0x20, 0x19, 0x0, 0xa, [0x8, 0x8279, 0x99f1, 0x8, 0x8, 0x1, 0xffffffff]}, @cipso={0x86, 0x13, 0x3, [{0x7, 0xa, "0698fbd70b640ec8"}, {0x2, 0x3, ':'}]}, @noop]}}}}}) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000001500)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000014c0)={&(0x7f00000013c0)=@mpls_delroute={0xd0, 0x19, 0x400, 0x70bd2d, 0x25dfdbfb, {0x1c, 0x80, 0x14, 0x1, 0xfe, 0x3, 0xc8, 0x4, 0x1a00}, [@RTA_NEWDST={0x84, 0x13, [{0x59, 0x0, 0x1}, {0x6}, {0x6}, {0x7, 0x0, 0x1}, {0x3}, {0x8}, {0x0, 0x0, 0x1}, {0xfe983}, {0x2, 0x0, 0x1}, {0x2}, {0x7}, {0x9b83, 0x0, 0x1}, {0x80}, {0x6169}, {0x6, 0x0, 0x1}, {0x3, 0x0, 0x1}, {0x2}, {}, {0x6, 0x0, 0x1}, {0xffff}, {0x6}, {0x8000, 0x0, 0x1}, {0x6, 0x0, 0x1}, {0xa0, 0x0, 0x1}, {0x800}, {0x7}, {0xb2b}, {0x5, 0x0, 0x1}, {0x6}, {0x4f}, {0x8, 0x0, 0x1}, {0x53dc, 0x0, 0x1}]}, @RTA_VIA={0x14, 0x12, {0x10, "95bcffcaa663929a8a473e3849b5"}}, @RTA_MULTIPATH={0xc, 0x9, {0x2c6, 0x0, 0x61, r0}}, @RTA_TTL_PROPAGATE={0x5, 0x1a, 0x20}, @RTA_DST={0x8, 0x1, {0x5}}]}, 0xd0}, 0x1, 0x0, 0x0, 0x8080}, 0xc8fdff0cf40fcedd) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r2 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r2, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r2, 0x0) r3 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r3, &(0x7f0000000040)={0x27, 0x1, 0x0, 0x1, 0x40, 0x3, "684f393b4fdd27ee0feabf390c56ddb779884011cdd8d9f1770add1a9a848a255de050e5aeafe1b21fb14d923e5026d5681d213996671ec2feaae494487100", 0x25}, 0x60) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:24 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffe00}, {0x0, 0x0, 0x0}], 0x2, 0x0) 06:52:24 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 322.547800][T18188] batman_adv: Cannot find parent device 06:52:24 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffff7f}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 322.698036][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:24 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r3 = creat(&(0x7f0000000000)='\x00', 0x40) r4 = syz_init_net_socket$netrom(0x6, 0x5, 0x0) r5 = syz_open_dev$tty1(0xc, 0x4, 0x3) io_uring_register$IORING_REGISTER_FILES(r3, 0x2, &(0x7f0000000040)=[r4, r2, r1, r2, r5], 0x5) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 322.868646][T18193] batman_adv: Cannot find parent device [ 322.940755][T18193] batman_adv: batadv0: Adding interface: gretap17 06:52:24 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24", 0x1e, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 322.969509][T18193] batman_adv: batadv0: The MTU of interface gretap17 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 323.067971][T18193] batman_adv: batadv0: Not using interface gretap17 (retrying later): interface not active [ 323.089325][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 323.216084][T18196] batman_adv: Cannot find parent device [ 323.230856][T18196] batman_adv: batadv0: Adding interface: gretap22 06:52:24 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:24 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffff5}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 323.245521][T18196] batman_adv: batadv0: The MTU of interface gretap22 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 323.319273][T18196] batman_adv: batadv0: Not using interface gretap22 (retrying later): interface not active 06:52:24 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:24 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0xfffffffc, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x26}, 0x60) 06:52:24 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:25 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 323.510820][T18238] batman_adv: Cannot find parent device 06:52:25 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0}], 0x2, 0x0) [ 323.574681][T18238] batman_adv: batadv0: Adding interface: gretap18 [ 323.601583][T18238] batman_adv: batadv0: The MTU of interface gretap18 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 323.615919][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:25 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) sendmsg$nfc_llcp(r0, &(0x7f0000000280)={&(0x7f0000000000)={0x27, 0x0, 0x2, 0x4, 0x3f, 0x20, "432dc1256acf41fba0f0bb5fba0bd1b4400a02788420b5a5f81ed99370b305125762693454f2b9c66c158784064f6ff0e6645a6f3f7e33d20b53d6de381f9b", 0x4}, 0x60, &(0x7f0000000100)=[{&(0x7f0000000080)="6227fdf36c1002d15ee57dcbfc14417eaea28984ea15c9bd46c7af2462fe6467786d24de33a949822741286c13f134f156448cc6a34904b17c33c8bd1c68fe6a3db8045c8b4ce3", 0x47}], 0x1, &(0x7f00000001c0)=ANY=[@ANYBLOB="98000000000000000d010000f0000000345a2f45f2fa07cb374310701f8e7e973d06004a733b7cb900cfc38890a7ba57077623c6c9357d917dc454d6b16c392c538d61a7c6be8f2d9fc44b07a68ffb085511d1f4e8fd8ed81a1d65ee5730bfe0ed0b3ce4c247d9db478cc7e59ef3d3f7223ce3a6d1f0c4ee5303f75245c472a7209d8ac3bf17ab1396cb98755df18d1b3b00000000000000"], 0x98, 0x4004090}, 0x81) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) recvmsg$can_bcm(r2, &(0x7f00000018c0)={&(0x7f00000002c0)=@pppol2tp={0x18, 0x1, {0x0, 0xffffffffffffffff, {0x2, 0x0, @remote}}}, 0x80, &(0x7f0000001780)=[{&(0x7f0000000340)=""/52, 0x34}, {&(0x7f0000000380)=""/20, 0x14}, {&(0x7f00000003c0)=""/81, 0x51}, {&(0x7f0000000440)=""/78, 0x4e}, {&(0x7f00000004c0)=""/4096, 0x1000}, {&(0x7f00000014c0)=""/94, 0x5e}, {&(0x7f0000001540)=""/152, 0x98}, {&(0x7f0000001600)=""/165, 0xa5}, {&(0x7f00000016c0)=""/148, 0x94}], 0x9, &(0x7f0000001840)=""/73, 0x49}, 0x40000020) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$SO_ATTACH_FILTER(r4, 0x1, 0x1a, &(0x7f00000001c0)={0x1, &(0x7f0000000280)=[{0x6, 0x0, 0x0, 0x3}]}, 0x8) bind$inet6(r4, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r4, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r4, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r4}], 0x1, 0xef) close(r4) sendmmsg$inet(r4, &(0x7f0000009a40)=[{{&(0x7f0000001ac0)={0x2, 0x4e24, @loopback}, 0x10, &(0x7f0000008540)=[{&(0x7f0000007300)="5875794c60b24a6ce02500797b2949b3abca863b4a8d7d7e80304b7ff05e4e452d099eb76d1275b5a3c99b", 0x2b}, {&(0x7f0000007340)="ad80a1b3c51425177e880ab09a1174413c2349336df7f3914e38a03bc3c434725d6a617939a2905571574657c0931e80913a7eefb4d381b01a4819a598e4f0972d0cc346dffd009de4176d94bc7993803d50089a3f40e191f218", 0x5a}, {&(0x7f00000073c0)="910f9bb807f11eb91079f5fc8654f8781ad842d1c7", 0x15}, {&(0x7f0000007400)="69e4ac49fd13985c8f53d3c8c05dc9c8a0dbf18966b48f22fa25478aab2fce604122b96cd21c1ad633771d312447cb8d02d5b1252d753302efb268f6943965e794dc34532e4e4323e485088995ba4922dc6ac68ce7a96f554517533a0b0cf86c0d55b09c0cddd87084e174aa88ba54085efb921b828eb2093036650b85afdaff4e9aa527c69674e2788e9984f213d8bfa7cf698ac1f48058be61385fbd03a91b17f6ccb0454bc4c5290b13f55856ba4ac46e1e8621b5ce", 0xb7}, {&(0x7f00000074c0)="fe2ab8e13d19d88b0723a2708ad1cd01c0ed08c86591e75f646bebed690c5b30a525bb1c98f8d373e6f577030f28083c469d7f3a6b28ed552a22a4d2e9230f2ab1ac20190a1aa962a2db9b7446a0f6b020baa3e2", 0x54}, {&(0x7f0000007540)="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", 0x1000}], 0x6, &(0x7f00000085c0)=[@ip_tos_u8={{0x11, 0x0, 0x1, 0x80}}, @ip_retopts={{0x104, 0x0, 0x7, {[@ssrr={0x89, 0xb, 0x3c, [@remote, @local]}, @rr={0x7, 0x23, 0xee, [@loopback, @broadcast, @multicast1, @broadcast, @broadcast, @broadcast, @dev={0xac, 0x14, 0x14, 0xf}, @multicast1]}, @lsrr={0x83, 0xf, 0xf9, [@empty, @broadcast, @multicast1]}, @noop, @cipso={0x86, 0x4f, 0x3, [{0x0, 0x10, "e6687b819364b296a9efd6c0c8a4"}, {0x0, 0x5, "ed904e"}, {0x1, 0xb, "c9da1cb6cbe3bdbec8"}, {0x6, 0xf, "1a5dc9ce6c805aa692986cdbdd"}, {0x7, 0x2}, {0x7, 0x2}, {0x2, 0x4, "81b9"}, {0x7, 0x12, "7b63a69d8145b5b33fefd5b21f18e6f7"}]}, @end, @timestamp_addr={0x44, 0x34, 0xa4, 0x1, 0x4, [{@empty, 0x7fffffff}, {@multicast1, 0x7}, {@multicast2, 0x1}, {@broadcast, 0x1}, {@loopback, 0x2}, {@local}]}, @generic={0x82, 0xd, "0bb1a08928dc6968df0edd"}, @rr={0x7, 0x17, 0x67, [@initdev={0xac, 0x1e, 0x0, 0x0}, @multicast2, @rand_addr=0x64010100, @remote, @rand_addr=0x64010101]}, @ssrr={0x89, 0xb, 0xd4, [@multicast2, @multicast1]}]}}}, @ip_ttl={{0x14, 0x0, 0x2, 0x101}}, @ip_tos_u8={{0x11, 0x0, 0x1, 0x2}}, @ip_tos_u8={{0x11, 0x0, 0x1, 0x40}}, @ip_tos_u8={{0x11, 0x0, 0x1, 0x4}}, @ip_pktinfo={{0x1c, 0x0, 0x8, {0x0, @loopback, @empty}}}], 0x1a0}}, {{&(0x7f0000008780)={0x2, 0x4e23, @local}, 0x10, &(0x7f0000009940)=[{&(0x7f00000087c0)="a71408b10a2fb38024d0d7c8f0ea2a0cd26bdc3e931629dea961c1fcd7f134527af679508ada9890fa0fcf25277002f56fcf086f55afe0c29f93b07eeb92afc64c2a50bcea941033e5ccc0962d47760428b1f26fe7a30e38ed8abe0f6fc867be336e7b62260888cf1bb56812d522df83feea9abc12a1d700187a667c5a34dc8fe8f526233b4c287edf6ba795f714c8d33c2d5ff4726b0a71856a81430b0e9cb50cbba79507d54b34fd4dbcec374fd5b66598474f208d1f2b9a220a3e686e4501e0b7956a3bc85da1e2b98743fe5cd8f74c98c5cec14ef63a70da5d42fda90a1076bbc1bcbd0b4fceeb249ae949e2916068cc37909b13", 0xf6}, 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0x1000}, {&(0x7f00000098c0)="5cd96976f4b1fea37da8e31bef5c4a7e9b258694f21f44588185d255d9eb5b5e334d8b5fddebadab24f86b1330ce81f603ff3492a808c53069468747b8b4e5f90f1b57e68c68c545dcf75a07f8d4cc7af01c0491eda131958e01b6aecf2dd6696403522b5778fbd8e1e0fe0311978bf4bfb1", 0x72}], 0x3, &(0x7f0000009980)=[@ip_tos_u8={{0x11, 0x0, 0x1, 0x7}}, @ip_tos_int={{0x14, 0x0, 0x1, 0x9}}, @ip_tos_u8={{0x11, 0x0, 0x1, 0x7f}}, @ip_retopts={{0x2c, 0x0, 0x7, {[@timestamp_prespec={0x44, 0x1c, 0xd4, 0x3, 0x1, [{@remote, 0x4}, {@loopback, 0x6}, {@rand_addr=0x64010102, 0xffffff6a}]}]}}}, @ip_ttl={{0x14, 0x0, 0x2, 0x4}}, @ip_ttl={{0x14, 0x0, 0x2, 0x1}}, @ip_ttl={{0x14, 0x0, 0x2, 0x20}}], 0xc0}}], 0x2, 0x80) sendmmsg$nfc_llcp(r3, &(0x7f0000007140)=[{&(0x7f0000001900)={0x27, 0x0, 0x1, 0x1, 0x3, 0x20, "57ad8a7ba669be43d95febd4b78604c8dfa428ba1b4d3a2902216245ce9a58ea2c9bb2ee74d622e50a7ddcdf41e803cbe5b040c3ffbb45b5ab2c705e103114", 0x2f}, 0x60, &(0x7f0000001d40)=[{&(0x7f0000001980)="085d2d7691a7c757d0d16ae1e7c6d327dc03b07a0de287453f821023f4f42c921778447530fbd8bba661af32780f1c895c3e12722526644aec007541889716c1e8e941427750d47c1dc542ec6a229698c1f5dab75454ad1cf0c3e64a49d6dc947c94b360b0f2fa713a97479048556733171968c5081ee6bbaa2e0405214d1fce1cd6898af36fa5add02112fbcdf0958cdabe574da1752d", 0x97}, {&(0x7f0000001a40)="06760563275c57ac817167e650e37a70dcdb992e15f355b80001c73701660b0a5e7108c7586c30401b8f2f98", 0x2c}, {&(0x7f0000001a80)="2feea958a21c329c66aa66c6430ba0283f2b6dd24ca48987f7076cdb608c", 0x1e}, {&(0x7f0000001ac0)}, {&(0x7f0000001b00)="0f2e58120aa52034e41a7d7c0317d1018e9f88b7dcaa9b2db5e1e53f423a313c8ead7e8a0264f8add4b837775f5002", 0x2f}, 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0x1000}, {&(0x7f0000005e80)="73cbdd129847298ad2e6a74688c7766f0e14c9228767ffd3c49feeebeb7aa99f3412f109b5972c83e8b4d64ba4a2c63bc4cb249d1fd3bcdc0b40481b687503e7c7ce01f8becc", 0x46}], 0x4}, {&(0x7f0000005f40)={0x27, 0x1, 0x2, 0x4, 0x9, 0x1, "ab5b87ea851ef8e8af80d64f7690244dfc289e6fad8b7ed7ba2ccfe0ea0642efd3eead286a2989fb7b39a50d17c3c9364f5db8ea295ab38d25a79a7d4d3088", 0x39}, 0x60, &(0x7f00000060c0)=[{&(0x7f0000005fc0)="018cda7c0f3916", 0x7}, {&(0x7f0000006000)="2c347b2a26ca50c33252002912f8da2e4a7dd39e5ec5dd35d201f4868466f414f478eea6ad6d45da0195a9b38745cd456ae2c7c43eb1ca89259d04ee5e7afaec24f9eb5f6653f93a03b40b93ade707285dc5b504df4d94ef53b1c43d411e6cc5335241fdbe925de315dc2c9df3db7059dbb24b68345b417ecc72cd8d2391bbc58eb82f5a0b", 0x85}], 0x2, &(0x7f0000006100)={0x1010, 0x102, 0x1, "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"}, 0x1010, 0x4000}], 0x7, 0x20000000) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 323.785925][T18238] batman_adv: batadv0: Not using interface gretap18 (retrying later): interface not active 06:52:25 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x4, 0x0}], 0x2, 0x0) 06:52:25 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 323.968813][T18252] batman_adv: Cannot find parent device 06:52:25 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 324.032705][T18252] batman_adv: batadv0: Adding interface: gretap14 [ 324.052791][T18252] batman_adv: batadv0: The MTU of interface gretap14 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 324.154249][T18252] batman_adv: batadv0: Not using interface gretap14 (retrying later): interface not active [ 324.168557][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:25 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:25 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x7, 0x0}], 0x2, 0x0) 06:52:25 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) syz_init_net_socket$nfc_llcp(0x27, 0x2, 0x1) listen(r1, 0x0) bind$nfc_llcp(r0, &(0x7f0000000080)={0x27, 0x1, 0x2, 0x2, 0x1, 0x0, "081d501ce6f485c65d2160bb8f78c3653b2c3b18fd979b5270192a95b538381e66eb431f9d325c8529f3e22193e00dd60ad0ab625dcec8f4e57ac0b8a5e3b7", 0xd}, 0x60) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) bind$nfc_llcp(r1, &(0x7f00000001c0)={0x27, 0x0, 0x2, 0x5, 0x40, 0x4, "6ee8f692494a2d338fbc439bb85e0f27f24aef6a312c51515521af4d8878828f5433bf85169963e471bc12149f8dbce56a5d61459551431e5ecc668cffb9a3", 0xe}, 0x60) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000000)={0x27, 0x0, 0x0, 0x3, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0xfffffffffffffe22) [ 324.373873][T18254] batman_adv: Cannot find parent device 06:52:26 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 324.483281][T18254] batman_adv: batadv0: Adding interface: gretap23 [ 324.489876][T18254] batman_adv: batadv0: The MTU of interface gretap23 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:26 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x11, 0x0}], 0x2, 0x0) 06:52:26 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) bind$nfc_llcp(r2, &(0x7f0000000000)={0x27, 0x0, 0x2, 0x6, 0x2, 0x6, "bc138bdfd2c493dd2cd0e7ee25a92db8a8e446187b6a82a54576fa164b9fd56302e186f17610ce717bd29e173beb3876e6fd1aff31d8504a65f059ac9fc8f4", 0x8}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) r3 = openat$null(0xffffffffffffff9c, &(0x7f0000000080), 0x10041, 0x0) accept4$nfc_llcp(r3, &(0x7f00000000c0), &(0x7f00000001c0)=0x60, 0x0) [ 324.616658][T18254] batman_adv: batadv0: Not using interface gretap23 (retrying later): interface not active [ 324.672169][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:26 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 324.778524][T18271] batman_adv: Cannot find parent device 06:52:26 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xc0, 0x0}], 0x2, 0x0) 06:52:26 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356", 0xf, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:26 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x1, 0x0, 0x6, 0x0, 0x9, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d000000000200", 0x22}, 0x60) listen(r1, 0xffffffff) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) r2 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/mdstat\x00', 0x0, 0x0) bind$nfc_llcp(r2, &(0x7f0000000040)={0x27, 0x1, 0x1, 0x5, 0x8f, 0x6, "37c81a3efce25d308bb665aa38a2a55cdeec76f66c6e87e69bc82aee08becc7224cd5543b7f98a26fc9c55072d28aa373d8df7d54ce79e496ba6139ec1377c", 0x2a}, 0x60) 06:52:26 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x700, 0x0}], 0x2, 0x0) [ 325.104430][T18283] batman_adv: Cannot find parent device [ 325.154986][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 325.185866][T18283] batman_adv: batadv0: Adding interface: gretap15 [ 325.224456][T18283] batman_adv: batadv0: The MTU of interface gretap15 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 325.315604][T18283] batman_adv: batadv0: Not using interface gretap15 (retrying later): interface not active 06:52:27 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:27 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$nfc_llcp_NFC_LLCP_MIUX(r2, 0x118, 0x1, &(0x7f0000000000)=0x8, 0x4) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x2, 0x4, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:27 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:27 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:27 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x1100, 0x0}], 0x2, 0x0) [ 325.540584][T18310] batman_adv: Cannot find parent device [ 325.619768][T18310] batman_adv: batadv0: Adding interface: gretap24 [ 325.644196][T18310] batman_adv: batadv0: The MTU of interface gretap24 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 325.654459][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:27 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x2000, 0x0}], 0x2, 0x0) 06:52:27 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r3 = perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x100}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendfile(r3, r3, &(0x7f00000000c0)=0x29, 0x3ff) ioctl$BTRFS_IOC_SCRUB(r3, 0xc400941b, &(0x7f00000001c0)={0x0, 0x100000001, 0x6, 0x1}) accept4$nfc_llcp(r2, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 325.801280][T18310] batman_adv: batadv0: Not using interface gretap24 (retrying later): interface not active 06:52:27 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 326.016556][T18341] batman_adv: Cannot find parent device 06:52:27 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x3e80, 0x0}], 0x2, 0x0) 06:52:27 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:27 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r3 = accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x1, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) sendmmsg$nfc_llcp(r3, &(0x7f00000010c0)=[{&(0x7f0000000000)={0x27, 0x0, 0x2, 0x5, 0x81, 0x5, "c17ab1568dd5d8bb9c53f2b49d236a2b9fa6cfe5222355b8e4a8c32a9e0b26d4543d59df0221b3849f4468279ad3a48942cdd48088a4fa70d1d56c9e3a20c5", 0x1a}, 0x60, &(0x7f00000003c0)=[{0xfffffffffffffffc}, {&(0x7f00000001c0)="bfdd70533159face8b03396f4bbadffcae308956051e6f6b0fa14dc0b430671935ad072f72f66883e7b5cc7c1f6e11c8124730ca69b9e9e2b1aa72b9cc86a8fc4358941d995b09807902bc43d976e60c707f61f8a678890e1d15184051cd88e68173d708f0486a0f9c942721821d9445836d9758b7ca9eef9e952a146340bc8043cb3375a4d4899ad42b7eda23dd8cb74b118e49952470df13dee14a0db9fb9bc7aa145d322b7f7082d7d251b7d6e1295fda2239e223bc8071ed65b745760c817100a2172dc17dd16ce4f983088507425ed982acbf7e120bde055b460af9001804af18", 0xe3}, {&(0x7f0000000080)="66aa8dcc7fa40d092b491a3df67656281d7d903f20c52fe3ce20c7d65a7959f05fc9c42e58c41ee5bdf9fe8c2dd2b95432989e6c13a6e99c478516701bc71f856b04364ead3aa64d98876f83b65ebf997a5a8fe23aa97ea6f2e003dbf81f3e04003fa60ca15c778caf6daf4457b895737f8c5b606532349a926cea2abbc7febd5c501bd5", 0x84}, {&(0x7f00000002c0)="5d36192836be27d45423538fcca4358b84a06f4dd6f09c4a199492dee5b532a0dc14a1a73c5b2c0d30f101db24b916ba83ea7e059f9b0c487db531defde427aa92efb7bd9bfcb703cfe0ef4c941bdd35c4207b1b9a6116047f216b21a8b353bf109ebe9ff896e32e29a349d67d6d45410feae97a48f52c3d454cdf5e3b90b340473450acfbea8b15cf83c30121abfc220e0c45ffd11c5eae5e4893980e24f566fcef3c12e9431bf40b47ed9e9ce9f51811995a1c68b7cd78883955bbf425f74fadc6e6903c456f0479646e25ead34d7f0f74325b140df92b", 0xd8}], 0x4, 0x0, 0x0, 0x40005}, {&(0x7f0000000400)={0x27, 0x0, 0x1, 0x1, 0x1b, 0x8, "286cf169961b6b40776cc63065301e3dd80b085b48c3a39c4db2b67ea1595533fb453c509f81b849d958fa3b5af48816b16b049868938da18f5afe66984284", 0x1f}, 0x60, &(0x7f0000000580)=[{&(0x7f0000000480)="2b95a4ec006ede7d8373b69dfbc90aa3e9b3f219e1a36fc0014bbc16947c91e18ad26d3bb8b8c4777554579022cdc736fa08928a50ad2460be40859d6d3be3fbfbc1591db69540059bd47263d203386b1f210afe826bdfb980fdc5696b727e613db40071dd71dcb3d1981ff27a1f53f734", 0x71}, {&(0x7f0000000500)="4b8b94185b173b2ff14fc5cb96a90767f46b23f13aa48ee056ab588f70528a63214911aa411e4f82f04d0b0c035b42856adda8ccd7f7f6140339d46efb78f151dd4428e078a33bb94d3498adb2b83ca04651725fba9fa33d6803c7e7f07d8e25c9989767ed4305c669967d518eae9ddf5d5673a152ddac", 0x77}], 0x2, &(0x7f00000005c0)={0xe0, 0x101, 0xd9, "69cb9c2d1f0e7a85b92e96ffe123a7a8ad3116932b4ca0a8e9bd794124c16d4928a941229b38587ad9503c3275354da6b67d5cf3a81e391ee5ff7b6ba9b9a09c2e6b11130c4bccd69615db0705de025da36730305df3a197f7785dec97858c9ab6b1a828f37f540581380f7ea3d600613451857a0a311d59d3982f9b80bbb2303edd60016508ce402acb52bc986bf254ecca7b77259f72c781341d36772f2512e6a0b1ee62f058618cb038c269dca9b86514b57ee08a1df647773691b2ca4769c0ec0f259d94f1d6b2456a"}, 0xe0, 0x20004000}, {&(0x7f00000006c0)={0x27, 0x1, 0x2, 0x3, 0x0, 0x0, "84b1aec37e1aba281bbe65ff11d447fc28f27dd601a735da067fa91334a29a1ab8b0c461abee067b1404284e14103fc89d560b9713d00d19dbb6192fc9c992", 0x13}, 0x60, &(0x7f0000000980)=[{&(0x7f0000000740)="9d453836a5cc01187478da87921d14bd3805c1f8b3a36649336ed899ae94d825f89cd95b63a8cf1f363be478cbca1409005054ac7133966807f89a19b2ed64d84c1e4be5010becbbf0c70f50e75ff8300788ceff2ec99b03d7d2b51bffe1f82a32da8a38b75b219a33219eebb2777ccaf9", 0x71}, {&(0x7f00000007c0)="b526cd107a6c8b32a3a2225da77ecf7f27fc41c7d1f7b955a86d659bdf88b3672e7995c991ec2a91f66e2ff5fb10cc8dda2bdfb1d2f25e1cac3e9cfa3bd86e42cda66da67586609804ca8fdcb440c13fd2bcbbc7da5c3f93f86632d608ca5b0062c7ebd17a9987b74ba7898bd7de5367ed4972", 0x73}, {&(0x7f0000000840)="a7c165768708b3b47c30a11ef287915f32e3734d811c0dce5955e35cc0dc9d73fb90fce4cf0c4f495c469e", 0x2b}, {&(0x7f0000000880)="6969674290362be02603a1ef18c11deb036204d87bd13b81d22ab26d86b0497709f3b4259d8c385e31a9927648aa8b11415835cc8ee73a0b8fc97b3f8e20440aa0f0427afaa0ff955f729ae20c7a967199ecaebd21dee356cd9a0aba95abfcb892ac7e8b8338031780ab2d7266347ad391b27b09d67aa28492f8034989581a9a9b6a2654d6632096dabce9b5cc3747d6f35c3ee729616183e2c68b44b37a", 0x9e}, {&(0x7f0000000940)="070f9594db63afe1dc895ca4befece3326be2301e1744842c8f5401f5cdab10f5293d045c3ae9b97f5d9809ef6b9c284c004", 0x32}], 0x5, &(0x7f0000000a00)={0xa0, 0x118, 0x80000000, "6cc16c260dd0969fd6c90ed741ed84071aebc70de3725b5c520b04a7dbda96c68ebaf6fcf6a3534c714fc3745efdd34470e6eca36acd7a40bb52b4796c0cf27e760900c9e54cc09ac809781ec41a8423cf6b3fcc5601f11df670e59699612d74fea6f94959d750c7ff210c8f38b9827b78d5980f5e389a216b4d8573c4c9e071865c51fa03dcf2a6f66d6264"}, 0xa0, 0x40048c0}, {&(0x7f0000000ac0)={0x27, 0x0, 0x0, 0x6, 0x9, 0xfe, "1ea9a9783ec8218c945d6cfe439fd415d1c9d1f2c20c11a55d342b503e8372ce783abf5962c5243e1bc611471d3d6124aca9c8a73c3eab5e8d244a5c08fa33", 0x1}, 0x60, &(0x7f0000000dc0)=[{&(0x7f0000000b40)="ba454f69a91800092149a805e2a46f7b7eb773e5a01eb656e997b21d9c25c7bf6eb537d659872128d3ff6daf4cd316af46d8975afbbb8e762f42accea8a99b268dd0379940dc7f87d299013dcb6a276ba6557ab70642b9c0e863cf", 0x5b}, {&(0x7f0000000bc0)="cda67237d52904fb8ac856a921ad0d9d7d612da222eabe080bc3ef853b3c10840ea25fc72ce449022d8d7bd607a5137d1eacdbd327a99bc2d78ff672acfa4ba04a300fdeda01f95a153146e2b81d1d6d259980b4fba425b5aeb464f39ab98bc89214d9d30b57669a1dac78592e672693ee9c8da77e475d75fa10282608629eb773fe46602ab5c830dd68a8d114c95bd17657fbbf16cf1d7da05e42384a0d0028404109b3a6ed967b5c3281be4efa3ab3be8302ed4c5eff3df463b80226326286626e4ab2de3209a1ff2a9e2b5fa85dbc81a2717e08cba79e4acf", 0xda}, {&(0x7f0000000cc0)="472febcacf71cb999bbcc9a21bd458b5158823b10e84975da35bad028d586939d707da4169582a5d94a3ce509c3243c022567782a88109fe64e3fbf7806baaf593fcd112db5e01e693d1aaac769169c6f78ec5fd7baf5146a2ed49cb13da3b71d0ae8c9be2c660f6f614da8e2d90e890a36b3136e4923c52d9a7f2a36e0997a9b83e29fd5d5302307379bec40cecff140606103c56deb94591b3b89420896a0025d589f7b9d0821da492b30d3b1390fb600244b50f81128cf5e3c06b30574baff3cdb0478a625c6ad1ddd14d348661e106267e907a60b25c1f2b5f9de8c6df2a4c3ed988d455cbbe3f200b4e99c1ed2e7671e5f9", 0xf4}], 0x3, &(0x7f0000000e00)={0x50, 0x11, 0x7, "a7c69b1da64e1a46af07e64aa95de7b551502a1e8a191f7bea968dc77ea3444eb5596e7e6c53d30106bb5cb623d6016e1b7b7756c021cc10fdb359243a"}, 0x50, 0x4010000}, {&(0x7f0000000e80)={0x27, 0x0, 0x1, 0x6, 0x2, 0x4, "addb783c3ad6f741374017fd39ce9b77916033037e38d8a91c676657d432bbf9182a44b756bc8a2b0076edee7b8582b392273c258a15b39b1e0a9e8f93e145", 0x1b}, 0x60, &(0x7f0000001040)=[{&(0x7f0000000f00)="67694304aec08a46004d75c4ee5c13854ff8f1b1131068cc60f24ac73f5e0190868c85b128211a6ccfb8926a4e6b0ac3b9480c1542f54750e02c75157bd4131cb41b1c76c0c950cc2ee4e43f90103a3a6773376f0f5a2d98793cf2186664ea632da8458ce2a7f5b579906b283dc00c1265f3c0493cf13e896918f28159a0310044b0c06f25fd33d0a2dee5a073ffff199fb383c365948ebe19cac0a96f668487f735d4e6357421892d31e2f2254d9119abf17bf5346e53c091", 0xb9}, {&(0x7f0000000fc0)="22aa89473480fa2a07e6b27f177c3f506c95d5bacb896acebb5283897b00e059b21bcb4952cbb227a30ebd41896997e92ce609be9927fb141d581fcbea889162ec64ac8cd95ff51f4b6861bea03ed6fc3384ee4094f597d3ec3f64f578363207014035bb78f367fb48bdc9a7f65e50", 0x6f}], 0x2, &(0x7f0000001080)={0x20, 0x101, 0x7373, "702494fcbe7b4e699680421a1dd9"}, 0x20, 0x2084}], 0x5, 0x10) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r4, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r4, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) ioctl$KVM_IOEVENTFD(r2, 0x4040ae79, &(0x7f0000001240)={0x4, &(0x7f0000001200), 0x2, r4, 0x9}) [ 326.143164][T18341] batman_adv: batadv0: Adding interface: gretap19 [ 326.149799][T18341] batman_adv: batadv0: The MTU of interface gretap19 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 326.255067][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 326.269238][T18341] batman_adv: batadv0: Not using interface gretap19 (retrying later): interface not active 06:52:27 executing program 1: read(0xffffffffffffffff, &(0x7f0000003580)=""/145, 0x91) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) bind$nfc_llcp(r1, &(0x7f0000003640)={0x27, 0x1, 0x0, 0x6, 0x8, 0x81, "090b2fa58478405cd94f03ad27af3d7b40f87be87100fc02b757d808ced878bb04b352713162e696c8fd94d81508107b20966671f40e5b099b77229f628edb", 0x32}, 0x60) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) sendmmsg$nfc_llcp(r2, &(0x7f0000003400)=[{&(0x7f0000000040)={0x27, 0x0, 0x1, 0x7, 0x20, 0x40, "bfcb38aa0fafbea5940f7b87e15695566ca25abe299b596d43a3506b53aaf224a7ea7e7c477c69826ebc13c7eb75d90eabda4609e1bb9a8fd15ee749d76285", 0x1c}, 0x60, &(0x7f00000000c0)=[{&(0x7f00000001c0)="058897ba7f04d06613fa0f28f864d4840b8aeaaf8d901c71034f9b7f569fb2096f03e32fce8957561785d491f62b1abf73df6565dea7bf4117205fd23994231786bff74c9764aadc353cd96ff041ff13befc4e60dc895424d5c9c738d3aecf9dd45744858b11b8e5f4f3bb2c36e07b1d2c7d0a9f9db9db46516e81d34f2fdc6af255a5aff45fdac6130b859b34af7729a21a4a6e362ce11f15ae9300e73e8f76b970616452554c311f3e30b039c8321e82a964e9de86e06e4fc290a37fc85d916190a6b21a7ac38c272256310003a05f1f5716aed3622919eea558119a046a464b1057b6d9d4", 0xe6}], 0x1, &(0x7f00000002c0)={0xe0, 0x3, 0x1ff, "1b1938a186ec8cabbb82b6d3505fddd60f3e3c27fec9762c7f72e229c3671a38aa12e962885aeb15c1cc220e403258b1ff2de25999d0236b3800e199be601ffd2cb3bac4387d30e3426f9642d585d0d26df780861911cb798f73ef040de0f750ca51d0409f6bcaaed86160a42ebd748174559b48a759bc345650300a605c71da3f8afcfd1a20c0d9a0a9b6608d2a8116b27cf43e54b4ec6f828a48bad6e03c9da78991299d2a50a543cb647e2abe3b8a65c0031ec4e9fbc7dff80ddf2e0653389590af3dd879f55e7506a775b814"}, 0xe0, 0x8804}, {&(0x7f00000003c0)={0x27, 0x0, 0x0, 0x1, 0x80, 0x9, "6e8134c445b9e090391e76c817994b73f23d65eef9ddcad8dd359668148c12180d40f3b99bffaa97aa6ba11ae1802a6406d0aee5977f267b6bd1456db20136", 0x18}, 0x60, &(0x7f0000001580)=[{&(0x7f0000000100)="f8b76c439a86e14ae072d641224e98441f83b87bfcee9b123b99cbe295f0e45b9d1d56643f007f217fe4", 0x2a}, {&(0x7f0000000440)="a86ff2a8dbce920830e9fc84d4fa55064bc76266cd9b9abb2fd8caa274923911c4902131a67fd1ed411b0b6a60beef216d363e6872e8bde266d20efab50564e05d3ff93bfea8e9c857", 0x49}, {&(0x7f00000004c0)="b32e4691f7e39ae21679d27f95c7ba", 0xf}, 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"e154f1e673673e98fc0164a048af921dcfc8f759690372f73dddcd23ca245cfa125c66c5fe992aa5f88b9ada64a23951049e34cc67fb632ad117327d39b35e07fc5550fb04842671eb7da9a8f57efd711d6cb87d7cad4ddc5a779f2141732dc98beb2e0936b5f774f18d0ef5a76d51361879ead6f538d674bc868fc8ac1b967b86ecd7c8c88819f3f0142f2b37010e992c73f1285f1543a2df648165c626bd3d0e0f2ea279da2d6b1d1bdafc5faf6a8a1bcd31e14e5414206ade4634dd34dd5e7706a8ed822ec0a1ef8ee75c56d7a6088d0e447d0a65be804ce7713c44001a7456dee316da198e121fe72c8dfd42eb4422"}, 0x108}, {&(0x7f0000002e40)={0x27, 0x1, 0x1, 0x6, 0x2, 0xe9, "3c859b625d19aa35bca0f65393f2a78b15f324411f5f5e2c82eab5ad6c05e9c63dc2a0ec65aa54009c16905a87bb57d341008dc22ed0d68c51546e36659b8c", 0x17}, 0x60, &(0x7f0000003340)=[{&(0x7f0000002ec0)}, {&(0x7f0000002f00)="5db73a847f475406f79af9335302ac06e51ddf48898e884288c1cfaa3b0be44fbca46137f09ac6a75d2e2174808404171c5d7fac219ebc066af0a574c8c33ef8ed560c1fb23e9e0d4be92837b0d584ca92beb4b54891325329762705a07853e24d7e463a6a590b74929750655d411151b77942884ebf2a9a6b8c710c6566ccc1e92ad088ef1ee308babc48b46aaa0c3315a2fd804d10d0e9d8b986d1f41c854fbf04151a7860622d08d26c89ca70b1e6d511608f002ed427e03077ef66681d3a91cd1c5bad7b347c426237f3e45d6f4e391dc29712d82e", 0xd7}, {&(0x7f0000003000)="cf5146c0a2d6ed0183266865d4360a90eeaa88f3e429072c1e7fc8377f4ac86da64655a9cdda24b699b40c997490aec0bb0e696acd24ce9b9507a74a6cb10109f65ff9529cd6abdea87a22ed30c1948d600377a20648798dbb94b52a4d25af5984726f85082b8908da2954171dba77875c5ef144708bd448ceab41f4b1ccd7d6d55641e78a7c3f844cc2abf0fe848942f012dc96b02a570905d5031675a1ef1984272e25ca2a45a78d72b486c1393397ff6235c57b0f64c98f52eeb545a1", 0xbe}, {&(0x7f00000030c0)="7657e3853a9e32bdd77dacc03a73f486b7b2437099702ae35c4e5695408b80d814764d9f7287c5a047eb56067b306d3ebc6c70cedcbadeb58d98f17b4ff098411b0abe76fd605905ef24101b1a67eb49855302385511e0f781f8839e6fc559eb8df4a925275e6817154488422568b6834149b2b6b716aa52fb112543a94c4eb60fa25b12593ac2bfd62607a89934ecbea3ccfe3c62146e7f95dfcc41315daa1dbb8a33fad98a791a7ec38501d97703c8bad80b11c2c3d9732bed52a80ead8f975d28a41ccd430ecd4df395fb", 0xcc}, {&(0x7f00000031c0)="0a2959edee70991fccd5513333874658ec2b1dc1e56dceb941f56fcabed2d0118d04ab333ce687c453af10718c2b29d90bc72573bd696671e942918dc3908b6e007d4bdbad18f953e80669afffe9b19af9272f0525be18b6644db559ca28d8dbe53656879e56ebca4dee0716f07207a17aa4223832b8068b66a5ac7bfa360c394dacc516f18ca05ed952fff5f9f3d3edbc3da1d852f75926fa6fe15bb0a74231e3b5fea68ffb38bef7174419b02356e0a6eaaa67ed47853205ff7746a1860c84429a6c12aa4b77fc59d2af552a705704", 0xd0}, {&(0x7f00000032c0)="6ed529639894e7fbb3034cc14b54a6ae6f5c0106a8f9e2b642cfc9461d491d63a5e536795c8d7fc561e256ce699d00c7f6c9ea68d81674975f47fcb25c30037bf5c4994e4299eec382f4c714a65b63ce23095efb8a4df61fbdef6d2b5483fd89b45ec5ef", 0x64}], 0x6, &(0x7f00000033c0)={0x20, 0x3a, 0x7, "95ff92b2341d2a3642599a67"}, 0x20, 0x40000}], 0x4, 0x5d24149c8d104f6d) bind$nfc_llcp(r1, &(0x7f0000003500)={0x27, 0x0, 0x1, 0x3, 0x1, 0x9, "9e47978196de555bf11c40ffd8b0a48f4b5190be5e3557ffc02f6de75aa56e801172c2213d8249c6779b3c271b4659029d1817c1d806e36d4a94e090959c12", 0x25}, 0x60) openat$binder_debug(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/binder/failed_transaction_log\x00', 0x0, 0x0) [ 326.457101][T18340] batman_adv: Cannot find parent device [ 326.483443][T18340] batman_adv: batadv0: Adding interface: gretap16 06:52:28 executing program 2: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r3 = perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x100}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendfile(r3, r3, &(0x7f00000000c0)=0x29, 0x3ff) ioctl$BTRFS_IOC_SCRUB(r3, 0xc400941b, &(0x7f00000001c0)={0x0, 0x100000001, 0x6, 0x1}) accept4$nfc_llcp(r2, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:28 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x3ec0, 0x0}], 0x2, 0x0) [ 326.495369][T18340] batman_adv: batadv0: The MTU of interface gretap16 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 326.525331][T18340] batman_adv: batadv0: Not using interface gretap16 (retrying later): interface not active 06:52:28 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:28 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) 06:52:28 executing program 2: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r3 = perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x100}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendfile(r3, r3, &(0x7f00000000c0)=0x29, 0x3ff) ioctl$BTRFS_IOC_SCRUB(r3, 0xc400941b, &(0x7f00000001c0)={0x0, 0x100000001, 0x6, 0x1}) accept4$nfc_llcp(r2, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:28 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x100, 0x2, 0x1, 0x0, 0x3, "ef5a9db78e822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x23}, 0xfffffffffffffe67) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) r2 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x600000, 0x0) accept4$nfc_llcp(r2, &(0x7f0000000040), &(0x7f00000000c0)=0x60, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) bind$nfc_llcp(r0, &(0x7f0000000240)={0x27, 0x1, 0x2, 0x4, 0x1, 0x1, "d4ba148bd7e062ccd542c31eb94f828763ab69d5582ebd406a01cf7e4e7f2abcc51e86304c83e996445bbdbe83eb78b622d4d80af44b92bda2ba207e5e1e7f", 0xb}, 0x60) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r3, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0x1}) accept4$nfc_llcp(r1, &(0x7f00000001c0), &(0x7f0000000100)=0x60, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000340)={0xfff, 0x4, 0x7}) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 326.688304][T18366] batman_adv: Cannot find parent device 06:52:28 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x803e, 0x0}], 0x2, 0x0) [ 326.764633][T18366] batman_adv: batadv0: Adding interface: gretap25 [ 326.782180][T18366] batman_adv: batadv0: The MTU of interface gretap25 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 326.815778][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 326.889348][T18366] batman_adv: batadv0: Not using interface gretap25 (retrying later): interface not active [ 327.023345][T18399] batman_adv: Cannot find parent device 06:52:28 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:28 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$nfc_llcp_NFC_LLCP_RW(r1, 0x118, 0x0, &(0x7f0000000000), 0x4) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:28 executing program 2: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r3 = perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x100}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendfile(r3, r3, &(0x7f00000000c0)=0x29, 0x3ff) ioctl$BTRFS_IOC_SCRUB(r3, 0xc400941b, &(0x7f00000001c0)={0x0, 0x100000001, 0x6, 0x1}) accept4$nfc_llcp(r2, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:28 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xc000, 0x0}], 0x2, 0x0) [ 327.100051][T18399] batman_adv: batadv0: Adding interface: gretap17 06:52:28 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e461774ad21fa524", 0x8, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 327.131386][T18399] batman_adv: batadv0: The MTU of interface gretap17 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:28 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:28 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x2, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x5, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x2000000022}, 0x9f) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 327.294010][T18399] batman_adv: batadv0: Not using interface gretap17 (retrying later): interface not active [ 327.306000][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:29 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:29 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xc03e, 0x0}], 0x2, 0x0) 06:52:29 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) r3 = accept4$phonet_pipe(r2, 0x0, &(0x7f0000000000), 0x80800) ioctl$BTRFS_IOC_SCRUB(r3, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 327.466632][T18419] batman_adv: Cannot find parent device 06:52:29 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 327.547706][T18419] batman_adv: batadv0: Adding interface: gretap26 [ 327.563799][T18419] batman_adv: batadv0: The MTU of interface gretap26 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:29 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) socket$inet6(0xa, 0x2, 0xffffffff) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 327.667883][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 327.699889][T18419] batman_adv: batadv0: Not using interface gretap26 (retrying later): interface not active 06:52:29 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:29 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x33fe0, 0x0}], 0x2, 0x0) [ 327.883316][T18426] batman_adv: Cannot find parent device 06:52:29 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f00000001c0)={0x27, 0x0, 0x0, 0x0, 0x1, 0xff, "3053981cd75fbc6b1262615fa9cbc4bbe6095a2d592d32264132303fad8bca08fab18fe1e57eafcbb8bbc2424ec649d94fe09048a2bf869c8c0435456ce8dc", 0x3c}, 0x60) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r3, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8, 0x0, 0x0}) ioctl$RTC_EPOCH_READ(r3, 0x8008700d, &(0x7f0000000240)) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r5 = memfd_create(&(0x7f0000000900)='Y\xff\xff\x00\x00\x00\x00\x00K\xb2\x02\x80B\xe9\xe8\xcc\xde\x06\x00l\xa8\x1aJ\xaf\xb2M\xba\xb8_\x05U\xcd<|>\x9e\xec^\x0e\xbe\x18+-\x9b\x893\x02\x00\xa6\x1f+\xb3\xc5\x90z5\xe0\xdfi\xb7\x9f\xb4QW\xc9\xc9\x92\x03\t\x00\x00\x00\x00\x00\xb2\x0f\xee\xbe\f8\xcc\x7f\x00\x00\x00Z\x81\x00\x00\x00\x00\x18I\x13\xf1\xa2x\x04\x81R\xd45R\xae\x84\xcdN\xf7\xf6\b~\xed_M^dQ:\xbc\xafq\x88\x19nSF|;]\xe1A\x8c\x8a\x98\xd7|\xdcLF\r\xb1\xfd\xbf!\xc7u\xccP\xdd\x13~\x89\xcf\x85\xca\xa0%\xc6\xc7\x11\x00\x00\x00\x00\x00\x00\x00?M9\\\av~\'\xd9\xb0\xacdya]8\x9d\xb7\v\xf39\xc5{\x9c!\x0f/\xb8o8\xb9\x8d\x19\xe2\xca\x01y\x83\xe7\ng\x87\xd93\x9e\xec^\x0e\xbe\x18+-\x9b\x893\x02\x00\xa6\x1f+\xb3\xc5\x90z5\xe0\xdfi\xb7\x9f\xb4QW\xc9\xc9\x92\x03\t\x00\x00\x00\x00\x00\xb2\x0f\xee\xbe\f8\xcc\x7f\x00\x00\x00Z\x81\x00\x00\x00\x00\x18I\x13\xf1\xa2x\x04\x81R\xd45R\xae\x84\xcdN\xf7\xf6\b~\xed_M^dQ:\xbc\xafq\x88\x19nSF|;]\xe1A\x8c\x8a\x98\xd7|\xdcLF\r\xb1\xfd\xbf!\xc7u\xccP\xdd\x13~\x89\xcf\x85\xca\xa0%\xc6\xc7\x11\x00\x00\x00\x00\x00\x00\x00?M9\\\av~\'\xd9\xb0\xacdya]8\x9d\xb7\v\xf39\xc5{\x9c!\x0f/\xb8o8\xb9\x8d\x19\xe2\xca\x01y\x83\xe7\ng\x87\xd930x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x34000, 0x0}], 0x2, 0x0) [ 328.077705][T18426] batman_adv: batadv0: Not using interface gretap20 (retrying later): interface not active [ 328.177867][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 328.199754][T18441] batman_adv: Cannot find parent device 06:52:29 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:29 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x0, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) perf_event_open(&(0x7f0000000000)={0x4, 0x80, 0x4, 0x2, 0xc1, 0x1, 0x0, 0xfffffffffffffff9, 0x4, 0x2, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0xd6, 0x966bb9403131b9ab, @perf_config_ext={0x6}, 0xc802, 0xdb, 0x1, 0x5, 0x3, 0x80, 0x4, 0x0, 0x0, 0x0, 0xffffffffffffffb3}, 0x0, 0xd, r2, 0x9) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 328.256274][T18441] batman_adv: batadv0: Adding interface: gretap18 [ 328.271082][T18441] batman_adv: batadv0: The MTU of interface gretap18 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 328.351203][T18441] batman_adv: batadv0: Not using interface gretap18 (retrying later): interface not active 06:52:30 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:30 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x40000, 0x0}], 0x2, 0x0) 06:52:30 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x35}, 0x60) 06:52:30 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 328.548318][T18457] batman_adv: Cannot find parent device [ 328.639300][T18457] batman_adv: batadv0: Adding interface: gretap27 [ 328.651774][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:30 executing program 1: r0 = openat$ttyprintk(0xffffffffffffff9c, &(0x7f0000000000), 0x10d282, 0x0) close(r0) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r2 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r2, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r2, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 328.679882][T18457] batman_adv: batadv0: The MTU of interface gretap27 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 328.740633][T18457] batman_adv: batadv0: Not using interface gretap27 (retrying later): interface not active 06:52:30 executing program 1: r0 = perf_event_open(&(0x7f0000000100)={0x1, 0xffffffcd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x84dc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x100, 0x0, @perf_bp, 0x280}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x0) sendfile(r0, r0, &(0x7f00000000c0)=0x29, 0x3ff) readv(r0, &(0x7f0000001640)=[{&(0x7f00000000c0)=""/106, 0x6a}, {&(0x7f0000001880)=""/151, 0x97}, {&(0x7f0000000280)=""/108, 0x6c}, {&(0x7f0000000300)=""/179, 0xb3}, {&(0x7f00000003c0)=""/4096, 0x1000}, {&(0x7f00000013c0)=""/99, 0x63}, {&(0x7f0000001440)=""/144, 0x90}, {&(0x7f00000001c0)=""/126, 0x7e}, {&(0x7f0000001580)=""/62, 0x3e}, {&(0x7f0000001500)=""/76, 0x4c}], 0xa) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r2 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r2, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) fgetxattr(r1, &(0x7f00000017c0)=@random={'trusted.', '/proc/capi/capi20ncci\x00'}, &(0x7f0000001800)=""/68, 0x44) listen(r2, 0x0) openat$proc_capi20ncci(0xffffffffffffff9c, &(0x7f0000000000), 0xc2000, 0x0) socketpair(0x0, 0x1, 0x7, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) bind$nfc_llcp(r3, &(0x7f0000000040)={0x27, 0x1, 0x0, 0x7, 0x2, 0x6, "41c30e71cc5331d47c718b641a3173a81165f8df5b2941910c252f59d2fbdaf6b784a96537ad6ea18eb67cb0c55af4b928bef97d841829d8f2984f5939c1ed", 0x16}, 0xfffffffffffffce9) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:30 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x400300, 0x0}], 0x2, 0x0) 06:52:30 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 328.892516][T18478] batman_adv: Cannot find parent device [ 328.963436][T18478] batman_adv: batadv0: Adding interface: gretap21 06:52:30 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 328.988811][T18478] batman_adv: batadv0: The MTU of interface gretap21 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:30 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xf0ff7f, 0x0}], 0x2, 0x0) [ 329.123395][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 329.133257][T18478] batman_adv: batadv0: Not using interface gretap21 (retrying later): interface not active [ 329.249519][T18496] batman_adv: Cannot find parent device 06:52:30 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:30 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) mmap(&(0x7f0000200000/0x400000)=nil, 0x400000, 0x0, 0x10, 0xffffffffffffffff, 0x0) r3 = perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x100}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendfile(r3, r3, &(0x7f00000000c0)=0x29, 0x3ff) r4 = syz_mount_image$gfs2(&(0x7f0000000440), &(0x7f0000000480)='./file0\x00', 0x7, 0x2, &(0x7f0000000640)=[{&(0x7f00000004c0)="0d7eb15a210f8123aaa52c2575b179d6d9217ee2575ee97bb32ee3b1650f4337af7b1cdcaed1b851ac1ed04f11d0234f35eb01a10a214919e5c87da020e68332979782c1d99d7ac6ee86e5dd3547d512ce6f009f7c27899665c7b09b48a330e7ec30865fa34bdbfacf036bc8b6cb8dfb47119ebc285bc51ae8c8b8cd867be39762eb052b6ef664008b4c6f765f2eea12b6d92d0dacddf33c9dede4bb36f5124689af5517", 0xa4, 0x6}, {&(0x7f0000000580)="641ae004f49056510d09202e285b96f9b2d288eb7ee8274206ad67e77bfb98bf8220b6b20333a617cc5bfc910de7440a044b42bd7e76a999371b052acf2db6ac9ab678cd9ad34785c9b7016260f22fc2e13ec9fa33dde5c9380f0d58a9f23b7a54a3009d80757816bfde21514f0200be43e4b455502b8ea207e9b8bd67a887984b66", 0x82, 0x8001}], 0x92000, &(0x7f0000000680)={[], [{@subj_role={'subj_role', 0x3d, '2\x83@~'}}, {@dont_appraise}, {@seclabel}, {@appraise}, {@subj_user={'subj_user', 0x3d, '^'}}]}) r5 = memfd_create(&(0x7f0000000900)='Y\xff\xff\x00\x00\x00\x00\x00K\xb2\x02\x80B\xe9\xe8\xcc\xde\x06\x00l\xa8\x1aJ\xaf\xb2M\xba\xb8_\x05U\xcd<|>\x9e\xec^\x0e\xbe\x18+-\x9b\x893\x02\x00\xa6\x1f+\xb3\xc5\x90z5\xe0\xdfi\xb7\x9f\xb4QW\xc9\xc9\x92\x03\t\x00\x00\x00\x00\x00\xb2\x0f\xee\xbe\f8\xcc\x7f\x00\x00\x00Z\x81\x00\x00\x00\x00\x18I\x13\xf1\xa2x\x04\x81R\xd45R\xae\x84\xcdN\xf7\xf6\b~\xed_M^dQ:\xbc\xafq\x88\x19nSF|;]\xe1A\x8c\x8a\x98\xd7|\xdcLF\r\xb1\xfd\xbf!\xc7u\xccP\xdd\x13~\x89\xcf\x85\xca\xa0%\xc6\xc7\x11\x00\x00\x00\x00\x00\x00\x00?M9\\\av~\'\xd9\xb0\xacdya]8\x9d\xb7\v\xf39\xc5{\x9c!\x0f/\xb8o8\xb9\x8d\x19\xe2\xca\x01y\x83\xe7\ng\x87\xd930xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r6, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r6, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) r7 = perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x100}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendfile(r7, r7, &(0x7f00000000c0)=0x29, 0x3ff) io_submit(0x0, 0x8, &(0x7f00000008c0)=[&(0x7f0000000100)={0x0, 0x0, 0x0, 0x7, 0xa4, r1, &(0x7f0000000000)="77811ac3ac5fbab9ee2352c8466e05d027fd9048cc9212a74efe98c0991acbb9a6976f250006a7f13b244402bc8cbafc3d548806c269b92c0b9863410160bbcc21c443edf94d643d8315cb42afc91621bd13a9472ed992047f05cdeae57cf659bc9904bc240e0882a65155ec7e8f08c6f6df160637eff44cc406b46d56e2d0f7107ebf87a7898674a4dfebd09e00d2ed31592cdf63042065c2a2fe1c159a74cacf5fd68b3c32b1be54de6992fe5513447fac31e952a916ca0cf98c341b49950f3d44", 0xc2, 0x6}, &(0x7f0000000280)={0x0, 0x0, 0x0, 0x8, 0x9, r0, &(0x7f00000001c0)="a1d517bee061855168164067785dee344bff18e8e15805b0ca8db0705ff66b947a3239a76b2d76d46aedcdb376362e5274609eda29a6cc9d83a15927e61ffe96dc19ab595c1342a9d6de8d0fe375d4d4472af05d56fb6f75977109aaefc8bc519acfb8844a5c", 0x66, 0x7fffffff, 0x0, 0x3}, &(0x7f0000000300)={0x0, 0x0, 0x0, 0x8, 0x3ff, 0xffffffffffffffff, &(0x7f00000002c0)="11818a8582c3d2b44173b470508ef9d529da3c3ffaf56d76", 0x18, 0x5, 0x0, 0x2, r2}, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x7, 0x200, r3, &(0x7f0000000340)="0c5c5071602dcfdbee46e7f68f30b8cebc57a117b2d37da70082b61b1da0c9180a7af1218e399c9d2542385c0802cfe6d2a7b9478a029223b92536829ed8f3750dfe078b42636e89efa2fdcbae4fde9db7da091b76bd6c0029e9f412ea79e7149a4e336d83c51f6a196e85f0f5448d2dd3880e4b6478b1ba1e721e5d2c1ec7c314411aa250f99b5a051b039ce96c", 0x8e, 0x7fffffff, 0x0, 0x59cdb6edd4aa44ad, r2}, &(0x7f0000000700)={0x0, 0x0, 0x0, 0x8, 0x2, r4, &(0x7f00000006c0)="2a36d909f7b82e41993a9ee65c7693f88e3d8a6ab9758185bfb040fbaccb2c6bdb3849", 0x23, 0x4800000000, 0x0, 0x2}, &(0x7f00000007c0)={0x0, 0x0, 0x0, 0x6, 0x9, r5, &(0x7f0000000740)="a4edb58591477805b52e7024782f846417ed55577e00bbc02362c911b30548b82bae6366de9f4bd9dd869b3e354aaf0df8baa0fdefbf34bd718cf3934f69223d25471564eaa3366a58f08cbf2ba4c2ce3ec3b34c9be7626f9322457037026916149a547a1661be9a22", 0x69, 0x1000, 0x0, 0x2, r6}, &(0x7f0000000880)={0x0, 0x0, 0x0, 0x5, 0xfffd, r7, &(0x7f0000000800)="15b763d9ef6f6d7734588347e3f6cc90d1c2da79353af3c9a22f28f09c9e93e3e34ba7d90b027daf3907bfaaf9d459af6245abaeabe1b71d3e4fc7a982d8effbfe2c1b0fa4f34f33ed9f07f8c4e0aa2447214cf0cd9c740eebe09506e7218ca97e49527023d718e4ed11d3", 0x6b, 0x8, 0x0, 0x1, r2}, 0xfffffffffffffffc]) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 329.341631][T18496] batman_adv: batadv0: Adding interface: gretap19 [ 329.354661][T18496] batman_adv: batadv0: The MTU of interface gretap19 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 329.458089][T18529] loop1: detected capacity change from 0 to 128 [ 329.462152][T18496] batman_adv: batadv0: Not using interface gretap19 (retrying later): interface not active 06:52:31 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:31 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xfeffff, 0x0}], 0x2, 0x0) 06:52:31 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480), 0x0, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 329.587524][T18509] batman_adv: Cannot find parent device [ 329.645379][T18509] batman_adv: batadv0: Adding interface: gretap28 [ 329.654441][T18509] batman_adv: batadv0: The MTU of interface gretap28 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 329.654464][T18533] loop1: detected capacity change from 0 to 128 [ 329.687642][T18509] batman_adv: batadv0: Not using interface gretap28 (retrying later): interface not active [ 329.720269][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:31 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) syz_open_procfs(0xffffffffffffffff, 0x0) r2 = socket$inet6(0xa, 0x4, 0x6) setsockopt$inet_sctp6_SCTP_AUTH_CHUNK(r2, 0x84, 0x15, &(0x7f0000000000)={0x40}, 0x1) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:31 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x1000000, 0x0}], 0x2, 0x0) 06:52:31 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 329.858443][T18531] batman_adv: Cannot find parent device [ 329.976608][T18531] batman_adv: batadv0: Adding interface: gretap22 06:52:31 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(r1) [ 330.005887][T18531] batman_adv: batadv0: The MTU of interface gretap22 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:31 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x6) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:31 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x4000000, 0x0}], 0x2, 0x0) [ 330.133639][T18531] batman_adv: batadv0: Not using interface gretap22 (retrying later): interface not active [ 330.146957][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:31 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x7000000, 0x0}], 0x2, 0x0) 06:52:31 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:31 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x2, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 330.326757][T18548] batman_adv: Cannot find parent device [ 330.459567][T18548] batman_adv: batadv0: Adding interface: gretap20 [ 330.489574][T18548] batman_adv: batadv0: The MTU of interface gretap20 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 330.535438][T18548] batman_adv: batadv0: Not using interface gretap20 (retrying later): interface not active 06:52:32 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:32 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) connect$inet6(r2, &(0x7f0000000000)={0xa, 0x4e21, 0x69, @private2={0xfc, 0x2, '\x00', 0x1}, 0x7ff}, 0x1c) 06:52:32 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x11000000, 0x0}], 0x2, 0x0) 06:52:32 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(0x0, 0x0, 0xef) close(r1) [ 330.673732][T18568] batman_adv: Cannot find parent device [ 330.696473][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 330.704900][T18568] batman_adv: batadv0: Adding interface: gretap29 [ 330.759468][T18568] batman_adv: batadv0: The MTU of interface gretap29 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:32 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r2 = memfd_create(&(0x7f0000000900)='Y\xff\xff\x00\x00\x00\x00\x00K\xb2\x02\x80B\xe9\xe8\xcc\xde\x06\x00l\xa8\x1aJ\xaf\xb2M\xba\xb8_\x05U\xcd<|>\x9e\xec^\x0e\xbe\x18+-\x9b\x893\x02\x00\xa6\x1f+\xb3\xc5\x90z5\xe0\xdfi\xb7\x9f\xb4QW\xc9\xc9\x92\x03\t\x00\x00\x00\x00\x00\xb2\x0f\xee\xbe\f8\xcc\x7f\x00\x00\x00Z\x81\x00\x00\x00\x00\x18I\x13\xf1\xa2x\x04\x81R\xd45R\xae\x84\xcdN\xf7\xf6\b~\xed_M^dQ:\xbc\xafq\x88\x19nSF|;]\xe1A\x8c\x8a\x98\xd7|\xdcLF\r\xb1\xfd\xbf!\xc7u\xccP\xdd\x13~\x89\xcf\x85\xca\xa0%\xc6\xc7\x11\x00\x00\x00\x00\x00\x00\x00?M9\\\av~\'\xd9\xb0\xacdya]8\x9d\xb7\v\xf39\xc5{\x9c!\x0f/\xb8o8\xb9\x8d\x19\xe2\xca\x01y\x83\xe7\ng\x87\xd930xffffffffffffffff}) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:32 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x20000000, 0x0}], 0x2, 0x0) 06:52:32 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) r2 = perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x100}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendfile(r2, r2, &(0x7f00000000c0)=0x29, 0x3ff) close(r2) 06:52:32 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(0x0, 0x0, 0xef) close(r1) [ 331.055244][T18590] batman_adv: batadv0: Adding interface: gretap23 [ 331.061802][T18590] batman_adv: batadv0: The MTU of interface gretap23 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 331.155756][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:32 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x7ffff000, 0x0}], 0x2, 0x0) [ 331.202451][T18590] batman_adv: batadv0: Not using interface gretap23 (retrying later): interface not active [ 331.359039][T18606] batman_adv: Cannot find parent device 06:52:32 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) 06:52:32 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x25}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) ioctl$sock_inet_tcp_SIOCOUTQ(r2, 0x5411, &(0x7f0000000000)) [ 331.419002][T18606] batman_adv: batadv0: Adding interface: gretap21 [ 331.431043][T18606] batman_adv: batadv0: The MTU of interface gretap21 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 331.507432][T18606] batman_adv: batadv0: Not using interface gretap21 (retrying later): interface not active 06:52:33 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:33 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x803e0000, 0x0}], 0x2, 0x0) 06:52:33 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(0x0, 0x0, 0xef) close(r1) 06:52:33 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = gettid() syz_open_procfs$namespace(r2, &(0x7f0000000540)='ns/pid\x00') r3 = gettid() syz_open_procfs$namespace(r3, &(0x7f0000000540)='ns/pid\x00') syz_open_procfs(r3, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 331.676198][T18626] batman_adv: Cannot find parent device [ 331.720350][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 331.740015][T18626] batman_adv: batadv0: Adding interface: gretap30 [ 331.781286][T18626] batman_adv: batadv0: The MTU of interface gretap30 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:33 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xc0000000, 0x0}], 0x2, 0x0) [ 331.847604][T18626] batman_adv: batadv0: Not using interface gretap30 (retrying later): interface not active 06:52:33 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(0xffffffffffffffff, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:33 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) listen(0xffffffffffffffff, 0x0) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r3, 0x40106436, &(0x7f0000000580)) close(0xffffffffffffffff) ioctl$sock_inet_SIOCGIFADDR(0xffffffffffffffff, 0x8915, &(0x7f0000000400)={'veth0\x00', {0x2, 0x0, @private}}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) accept4$nfc_llcp(r3, &(0x7f00000000c0), &(0x7f00000001c0)=0x60, 0x800) r4 = openat$nvme_fabrics(0xffffffffffffff9c, &(0x7f0000000200), 0x102, 0x0) preadv(r2, &(0x7f00000003c0)=[{&(0x7f00000002c0)=""/198, 0xc6}, {&(0x7f00000005c0)=""/4096, 0x1000}], 0x2, 0x1, 0xb) bind$nfc_llcp(r4, &(0x7f0000000240)={0x27, 0x0, 0x1, 0x5, 0x4a, 0xe, "8acd9677482835d9a31ab517864a740ecb42efb974ec991ad8a8709a628d555f93d15582a1c2ebadee1279cd12942adaf7f875f75db863a214bea57d984ebb", 0xd}, 0x60) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) ioctl$vim2m_VIDIOC_DQBUF(r2, 0xc0585611, &(0x7f0000000000)={0x80000000, 0x2, 0x4, 0x1908, 0x0, {0x77359400}, {0x4, 0xd, 0x1, 0x3, 0x8, 0xdd, "bed5a722"}, 0x0, 0x3, @offset=0x4, 0x3, 0x0, r2}) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r5, &(0x7f0000000080)={0x20000008}) 06:52:33 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xc03e0000, 0x0}], 0x2, 0x0) 06:52:33 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000), 0x0, 0xef) close(r1) [ 332.072010][T18639] batman_adv: Cannot find parent device 06:52:33 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x2, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) bind(r1, &(0x7f0000000000)=@l2tp={0x2, 0x0, @loopback, 0x3}, 0x80) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 332.145085][T18639] batman_adv: batadv0: Adding interface: gretap24 [ 332.203228][T18639] batman_adv: batadv0: The MTU of interface gretap24 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 332.301481][T18639] batman_adv: batadv0: Not using interface gretap24 (retrying later): interface not active 06:52:33 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) 06:52:33 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xe03f0300, 0x0}], 0x2, 0x0) [ 332.421261][T18653] batman_adv: Cannot find parent device [ 332.474386][T18653] batman_adv: batadv0: Adding interface: gretap22 [ 332.481066][T18653] batman_adv: batadv0: The MTU of interface gretap22 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 332.604830][T18653] batman_adv: batadv0: Not using interface gretap22 (retrying later): interface not active 06:52:34 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:34 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) r2 = socket(0x22, 0x2, 0x3) bind$isdn(r2, &(0x7f0000000100), 0x6) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) ioctl$BTRFS_IOC_SCRUB_PROGRESS(r1, 0xc400941d, &(0x7f00000001c0)={0x0, 0xfea, 0x1f}) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x800) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:34 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000), 0x0, 0xef) close(r1) 06:52:34 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xeffdffff, 0x0}], 0x2, 0x0) [ 332.748532][T18672] batman_adv: Cannot find parent device [ 332.782209][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 332.829766][T18672] batman_adv: batadv0: Adding interface: gretap31 [ 332.852165][T18672] batman_adv: batadv0: The MTU of interface gretap31 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 332.886365][T18672] batman_adv: batadv0: Not using interface gretap31 (retrying later): interface not active 06:52:34 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) connect$nfc_llcp(r1, &(0x7f0000000040)={0x27, 0x1, 0x0, 0x7, 0x4d, 0x82, "31d98ae05a6489f2a9de71039f21e5a270a8c3740f6d387321c64b82bc86bd39dd44871cf02cadff5717e4ef369115eeb5b9208e20b05fffa41844022ebd7d", 0x6}, 0x60) setsockopt$sock_int(r0, 0x1, 0x2d, &(0x7f00000000c0)=0x5, 0x4) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) setsockopt$nfc_llcp_NFC_LLCP_MIUX(r1, 0x118, 0x1, &(0x7f0000000100)=0x1f, 0x4) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) accept4$nfc_llcp(r0, 0x0, &(0x7f0000000000), 0x80800) 06:52:34 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(0xffffffffffffffff, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:34 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xf5ffffff, 0x0}], 0x2, 0x0) [ 333.019268][T18690] batman_adv: Cannot find parent device 06:52:34 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000), 0x0, 0xef) close(r1) [ 333.088270][T18690] batman_adv: batadv0: Adding interface: gretap25 [ 333.112736][T18690] batman_adv: batadv0: The MTU of interface gretap25 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:34 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) r2 = mq_open(&(0x7f0000000100)='-{+)((\x00', 0x1, 0x160, &(0x7f00000015c0)={0x4, 0xfffffffffffffffc, 0x80, 0x2}) ioctl$BTRFS_IOC_SUBVOL_GETFLAGS(r2, 0x80089419, &(0x7f0000001600)) listen(r1, 0x0) r3 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r4 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x24080, 0x0) write$tcp_mem(r4, &(0x7f0000000040)={0x5, 0x20, 0x1, 0x20, 0x3}, 0x48) ioctl$BTRFS_IOC_DEV_INFO(r4, 0xd000941e, &(0x7f00000001c0)={0x0, "d447429be72378dcb1143f0d3ee220fb"}) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, &(0x7f00000011c0)={r5, 0x7, 0x101}) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) setsockopt$inet_sctp6_SCTP_RTOINFO(r3, 0x84, 0x0, &(0x7f00000000c0)={0x0, 0x1, 0xfffffffe, 0x1}, 0x10) 06:52:34 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xfffffdef, 0x0}], 0x2, 0x0) [ 333.240463][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 333.275477][T18690] batman_adv: batadv0: Not using interface gretap25 (retrying later): interface not active 06:52:34 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) 06:52:34 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) getsockopt$nfc_llcp(r2, 0x118, 0x2, &(0x7f00000001c0)=""/75, 0x4b) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) getsockopt$nfc_llcp(0xffffffffffffffff, 0x118, 0x4, &(0x7f00000002c0)=""/49, 0x31) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) vmsplice(r3, &(0x7f0000000280)=[{&(0x7f0000000240)="975adb40a488956926e0c44b427e66aef0705e", 0x13}], 0x1, 0xc) ioctl$DRM_IOCTL_AGP_BIND(r3, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000100)={0x8, 0x7}) getsockopt$nfc_llcp(0xffffffffffffffff, 0x118, 0x0, &(0x7f0000000000)=""/239, 0xef) syz_init_net_socket$nfc_llcp(0x27, 0x0, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 333.513217][T18703] batman_adv: Cannot find parent device [ 333.580690][T18703] batman_adv: batadv0: Adding interface: gretap23 [ 333.606589][T18703] batman_adv: batadv0: The MTU of interface gretap23 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 333.681240][T18703] batman_adv: batadv0: Not using interface gretap23 (retrying later): interface not active [ 333.759025][T18720] batman_adv: Cannot find parent device 06:52:35 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:35 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000)=[{}], 0x1, 0xef) close(r1) 06:52:35 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xfffffe00, 0x0}], 0x2, 0x0) 06:52:35 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) pipe(&(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) sendmmsg$nfc_llcp(r2, &(0x7f0000000440)=[{&(0x7f0000000000)={0x27, 0x1, 0x2, 0x6, 0x78, 0x0, "f1a855125d01bb4412e5f3e0781ddcfa58511bf207e3902f7ef051e3e38529629c9404f68a19f909256f6e2e6b33a986d1f30c7b3d5ada8de41b54f5d1ee8c", 0x14}, 0x60, &(0x7f0000000100)=[{&(0x7f0000000080)="a4aacb88fb10", 0x6}, {&(0x7f00000000c0)="eebbc6f4d026c0efcd83356faa7d6a2b8576eed4df", 0x15}, {&(0x7f00000001c0)="b2f4dcde47189ce88f3de2845fd3e02e06f92a131bd84ad6497da23c99f25964ba0cfd1c215d64d6397518f64991cdc4e1053352c260ee9ebc5ca4241b03c20b12a079950cafcf3f4c58baf4f36df3040a43b1aaa8977c240e2777bc8686b9f67ad4e69a3837aa1bcdd4eb12ccead9970044851d71bf1148830ef5e5e0c3a0cf57e20a5b85931266c75ed0821f8a3ba47c6b005499f4eca2a3fc952f", 0x9c}, {&(0x7f0000000280)="de2e16af5a7a8740f977cfe28f4ca0a18743382ef810e0a8fa6d36b775eed27e77e231e941e3f409fae7959588688a49c9356d6fbafa5d9d736eabef9793bd9444627e0ad88e9425c4f95f7ef54bbb1c18577ad537818efc4c76e19bdcfda7f6218d8a6be4d269c6e54e7720d1293792011028cab0182c5cc39679b828b5326318a0effd2031daa2c19a46949745185b63b441c8adec2a70714ae1a40a6ede404797bf9eb29b123865ee9abb5bcad2f3a32419006a18fb6f4df10b9610963869ba9f49c8718aa300e051a5b38ed391454cd246", 0xd3}], 0x4, &(0x7f0000000380)=ANY=[@ANYBLOB="a00008007259b5572b163bc4861a08c0168a948ee5f8ca727362835f0328e3f1096f3f590b06011762c8613fb989b834334b5dae415a17502f2b8164239608b869f18745413147197472aa5eda58b8a2fe4eeef5048a301fbfe4c8883f5f251a2427986fb22ea0f1268096e0dca5608c2de18a000000000000000000000000000000005f2d11"], 0xa0, 0x8881}], 0x1, 0x5) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 333.870154][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 333.871468][T18720] batman_adv: batadv0: Adding interface: gretap32 [ 333.957344][T18720] batman_adv: batadv0: The MTU of interface gretap32 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:35 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xffffff7f, 0x0}], 0x2, 0x0) [ 334.084397][T18720] batman_adv: batadv0: Not using interface gretap32 (retrying later): interface not active 06:52:35 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(0xffffffffffffffff, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:35 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) bind$nfc_llcp(r2, &(0x7f0000000000)={0x27, 0x1, 0x2, 0x2, 0x7f, 0x3f, "be6d313c9caf90d054e5ecfc5394cb22919edf1cdaed9e6cf8cbdd44aa4152fb52435701d7e318cbac5f517b3ac8cd08f7740fb0eab2114a673d3478d89ffe", 0xf}, 0x60) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r3, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) sendmmsg$nfc_llcp(r3, &(0x7f0000005780)=[{&(0x7f0000000080)={0x27, 0x0, 0x1, 0x5, 0x9, 0x8, "ec66733b2d314768eb027bacc7710eee41b2ec78a2ca0aadc1077f73a1b61eb33c82431627fb5a4be8e5a9cf18d3f15115dd92468d82e02f608f0729f6ffd2", 0x1b}, 0x60, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x1000}, {&(0x7f00000001c0)="18ea806808e66ad5ce020b4596d64cf99950232ff3c05f5c1aec62b16aa332faf967c8834903b45ee72fe43f29e46d347c1d750a405829fa9036446f043834d0a4d685f084a8d2c9b075bbae60490601164d74c7050b5173e2d4ad132884dbf556211c0fde03f3f2ce2bd288224ac1461ebfd97f7a03e1336b4cd49026bdcd0a7bb61391e47269f75eedd8dd5256c6aba32f37f31f59add1b943bd18aabef267", 0xa0}], 0x2, &(0x7f0000000280)={0xf8, 0x111, 0x10000, "cec946e9e6efbf66c94e3b00922aaf3a3fa556b5c7b12f5a5c34bf5939f5856c4e9516b00b481252b4066b19dcf93ae2fb0d9641b0114cd8ce1cf63b71f12d6ba3e1a47daa3ecfe73a0dd881e8eea4e89fa3181cfdadaa8b21775e1030378677638b3f9fa4f80bba62d37eafa67b6ad308e3be102ae6fb2c4dcbae82a6c22afe8ef0674dfbd669b030cee103fbc82320076832317ba30a1ac0e49f24650d1b7b1b9586d435b889b4189ba30280449088a08391e4b7c96892b0c775fa3c200d5a09bbe7df9e94d0964ef6b137ab9aff819a649932e2259867169009fd0875ee38523bf35d7390dd"}, 0xf8, 0x4800}, {&(0x7f0000000380)={0x27, 0x0, 0x2, 0x6, 0x8, 0x0, "14d3a29a536d410501c74d5bb5241cbd46f00c5983e493e402ae1a425e2b572b2c7d84712cb01b94a2857f569de908fc6a6de7b96d9e6235f8e2ac5383b043", 0x6}, 0x60, &(0x7f0000000400), 0x0, &(0x7f0000000440)={0x68, 0x10a, 0x4fbe09d5, "70d9869b1d1ad9c1768afc90e094609d78d2fdf5ebcb313a35bc4f9d780380b7abebbdbfe12ea3468990e347426105974855b3ac39009b3ef903fc1c9577fb5dd4af8c7d97f45c1fc931611b3380073c3d9ef489"}, 0x68, 0x8040}, {&(0x7f00000004c0)={0x27, 0x0, 0x2, 0x7, 0xff, 0x1f, "6d0dae2308f712784df839b02b6cf17a72d7415440ab2074e4f0d467ee53836cbb2196b5a8d16cb00bb69db51ff0c53d91b2a0d619c1592cedbc08e3fab9a8", 0x1c}, 0x60, &(0x7f0000000540)=[{&(0x7f00000015c0)="576ca679303709a982f22927a164a43aee5056389a5a01b2ba5cd54b71fe9c0711c59dc617393dfdf5391db01e41bd19b3cc645f5c9ebedb562b399d23228684cb36ba5a7654cf47e3d991a6919fa8b0cb87036105a72b7517b85d34bab4910383bad9b61c9f9573f433c5ebc00b43672f8fc184bae98ae2", 0x78}], 0x1, &(0x7f0000001640)={0x38, 0x10b, 0x36, "94a64194ed5ad2250048f801c80895452bb1ea23bf3f4aff9c10d7d6939d4d5a9ad7a45230"}, 0x38, 0x4000000}, {&(0x7f0000001680)={0x27, 0x0, 0x2, 0x0, 0x9, 0x7, "6e72be025fe2d8d290d73d4d82842f644ec08cc87ba0718fb10b44db4debabd02771d891333b3bb2f33b5185231f7304b7b100a37ccd4feee4832753da13e8", 0x11}, 0x60, &(0x7f0000002a00)=[{&(0x7f0000001700)="b65f0015e0926ddc6536a6694749985e33346008cfa69052d098d3701d5f46bfe000281984795c04cb6285bd81b6068932e6791985cd80fbc5674bbe57ac344b354bdda04a0da495e3ff71cad31dea8ae52f0d5d6660ad00c75e681fb91a58467c54ebcc17e60475762912fb0a06e5828ffbee1eb6699c1ea3d17581ba709ed245eeed9339d07ae701889cc3bf01aa87cd96b8c24093e32abbeb9491c2e867dc8045025472771a6296131c4be4a6d161d4bad59c5cebf68deaa4", 0xba}, {&(0x7f00000017c0)="0885d0cc3637ea7fb589d9dfe11bac87a582c715704fe33cfb665008d0a4944014f3dc614221d1669e4757fdea53bcc1315dcf4884c73a5224beaec685c46267327b6004067fdae0af7f71ab29c2e59c297c0121a5b383819cb304910e08121a520036145225264560593128ea592d9d0b1b4fa2dbbad0a439bcd719c6ea9554f82f5ef6d95fa9508f7702edee8fec22fbe6239b8c8378", 0x97}, 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{&(0x7f0000004180)={0x27, 0x0, 0x1, 0x2, 0x0, 0x0, "20c8f45b4c11ae588089bb252fa1f7361254ad93cf894f54c3f273bf521b21aa21d447d0eadc8b0b47ed09e8fcdee04d539327f874520fa936fb322a2c1d0e", 0x3e}, 0x60, &(0x7f0000005680)=[{&(0x7f0000004200)="1a234bc05f9a743d48530633701583b1845800e4934944a70b2c4a0b841b836302b08a6c1b0e1ff1b6d07f49b9154a4b", 0x30}, {&(0x7f0000004240)="598a1dcc7ca2090bbe7d7113111129254d214ced5ab5d0065ba1028c9bc2c3a089580b32e232eb7364d054a0ac57a581b4a7ccc7c39eb941e61b280c335ad7ed49f09735b9bc0dde832e0894af1a0c2c00dd5faeded416c7921185bfd8e8eaa8264fe73e76edb649baa09eb96a4bb60e21f69115624d31d991bcca22454cce980d2735782fd7de7d1cd6a6e247d95d50cc6ca43159490a31fe065d42cc5fd0b641129158d85449b9978c55a845b0b72e62531d9a85f4d9498c786060db2cda4a286ab3773d61327caf80c429fd2d7eec3f15deac778fb2185f09d73de4e4521ed30a5b6559070207b393e1f0", 0xec}, {&(0x7f0000004340)="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", 0xfb}, {&(0x7f0000004440)}, {&(0x7f0000004480)="3128b8ee35e25656cba607a143a7eba6923d05e2e4a16a451bf29b08f78098bfc65e709216b1e98dbda8d821d5e48cee47f8b5d38a2633a3364e9426e78720064a8bf6e66c3e720e7ac21262da08fb5c53f94fb17228b8ded81109bb55e1596ffbe6ff5538b158e3736957de21b4b4e00a567a595c0d2afe7a54c7667508380686fa07ebf80999f04b", 0x89}, {&(0x7f0000004540)="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", 0x1000}, {&(0x7f0000005540)="ffb042c7", 0x4}, {&(0x7f0000005580)="0b034c4c9d83032794492a101cc200e610a44b52d03a85d42affa43b3471ef57849dc61415038ad0dc5cfda2e1445ec10c6c82277dd12284d4c42788c682cc01b3790f5c0f8c94c38cdceb0b683d7ed9535926c384d674a67f2b8c214a3df353f49eef0ec0dce7b5d2a577ea6c7cd5777f718882abb3ad177b287534b998d43eaab949431d996127de8c78f4715ff77d37de84f0d82b29f748105865ba6c412c57831a5602fcddf24b33339235467e4db7b61009e65ab0c92b", 0xb9}, {&(0x7f0000005640)="d45faa12d15193cb89d03b916da8365661e9728f13399962fb63b3eaa0", 0x1d}], 0x9, &(0x7f0000005740)={0x30, 0x117, 0x8, "cc248b2e1a073e543c364cacd90aee93b00ce9dbbbfc5a90a058bf1126e9"}, 0x30, 0x4040040}], 0x6, 0x48040) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x4, 0x0, "ef5a99aa0c9882d5e2ee00c69ca0365ce27a355feeed16594a8cbf27b9afb59d8f85d5fcffbb4d00", 0x6}, 0x60) 06:52:35 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000)=[{}], 0x1, 0xef) close(r1) [ 334.257015][T18736] batman_adv: Cannot find parent device [ 334.319468][T18736] batman_adv: batadv0: Adding interface: gretap26 [ 334.335273][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:35 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0xfffffff5, 0x0}], 0x2, 0x0) [ 334.344782][T18736] batman_adv: batadv0: The MTU of interface gretap26 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:35 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x39}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) fsetxattr$trusted_overlay_origin(r2, &(0x7f0000000040), &(0x7f0000000080), 0x2, 0x1) ioctl$sock_SIOCSIFVLAN_ADD_VLAN_CMD(r2, 0x8983, &(0x7f0000000000)={0x0, 'ip6erspan0\x00', {0x2}, 0xdbc6}) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) r3 = openat$sysctl(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/sys/vm/compact_memory\x00', 0x1, 0x0) ioctl$FS_IOC_GET_ENCRYPTION_POLICY(r3, 0x400c6615, &(0x7f0000000100)) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 334.444089][T18736] batman_adv: batadv0: Not using interface gretap26 (retrying later): interface not active 06:52:36 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 334.573417][T18753] batman_adv: Cannot find parent device 06:52:36 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x4}], 0x2, 0x0) [ 334.647048][T18753] batman_adv: batadv0: Adding interface: gretap24 [ 334.682079][T18753] batman_adv: batadv0: The MTU of interface gretap24 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 334.741253][T18753] batman_adv: batadv0: Not using interface gretap24 (retrying later): interface not active 06:52:36 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:36 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x7}], 0x2, 0x0) 06:52:36 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) bind$nfc_llcp(r2, &(0x7f0000000000)={0x27, 0x1, 0x2, 0x6, 0x20, 0xf0, "5995b8d268a216d94a9aac911f1e450095983e397ebbf19ccbf30678a779a12f80cf92c88009b3c12e9a34cd5c248d7cddffee5f90f67936599a8a958f6ca8", 0xf}, 0x60) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:36 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000)=[{}], 0x1, 0xef) close(r1) [ 334.830235][T18777] batman_adv: Cannot find parent device [ 334.919707][T18777] batman_adv: batadv0: Adding interface: gretap33 [ 334.935063][T18777] batman_adv: batadv0: The MTU of interface gretap33 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 334.976164][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:36 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x11}], 0x2, 0x0) [ 335.058532][T18777] batman_adv: batadv0: Not using interface gretap33 (retrying later): interface not active 06:52:36 executing program 1: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(0xffffffffffffffff, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x2, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x23}, 0x60) listen(0xffffffffffffffff, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r0, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_AGP_ALLOC(0xffffffffffffffff, 0xc0206434, &(0x7f0000000040)={0x0, 0x0, 0x10000}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x2, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x400022}, 0x60) 06:52:36 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xc0}], 0x2, 0x0) 06:52:36 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:36 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0x0) close(r1) [ 335.296200][T18792] batman_adv: Cannot find parent device [ 335.358412][T18792] batman_adv: batadv0: Adding interface: gretap27 [ 335.386508][T18792] batman_adv: batadv0: The MTU of interface gretap27 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 335.401199][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:36 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0x0) close(r1) [ 335.458135][T18792] batman_adv: batadv0: Not using interface gretap27 (retrying later): interface not active 06:52:37 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:37 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) r2 = syz_open_dev$mouse(&(0x7f0000000000), 0x5, 0x40) r3 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r3, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setuid(r4) r5 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r5, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) ioctl$sock_ipv6_tunnel_SIOCDEL6RD(r2, 0x89fa, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f0000001780)={'ip6gre0\x00', 0x0, 0x4, 0x9, 0x5, 0x2, 0x24, @dev={0xfe, 0x80, '\x00', 0xd}, @private1, 0x80, 0x8, 0x5, 0xb98}}) ioctl$sock_ipv4_tunnel_SIOCDELTUNNEL(r3, 0x89f2, &(0x7f0000001880)={'syztnl2\x00', &(0x7f0000001800)={'gre0\x00', r7, 0x8, 0x8000, 0x1, 0x9, {{0x10, 0x4, 0x2, 0x0, 0x40, 0x68, 0x0, 0x2, 0x29, 0x0, @rand_addr=0x64010101, @remote, {[@cipso={0x86, 0x29, 0x0, [{0x5, 0x2}, {0x1, 0x11, "59c53385ea1264d8ee432fc599e5a9"}, {0x6, 0xc, "92b00608e5460025350b"}, {0x7, 0x2}, {0x0, 0x2}]}]}}}}}) setuid(r6) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440a0000100001040001000000001f0000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB='\b\x00\n\x00', @ANYRES32=0x0, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000001fc0)={&(0x7f00000018c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000001f80)={&(0x7f0000002000)=ANY=[@ANYBLOB="480600001a00000429bd7000fedbdf250a202001fd01fe0a00050000050014000500000008000400", @ANYRES32=r7, @ANYBLOB="08001900", @ANYRES32=0xee00, @ANYBLOB="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", @ANYRES32=0x0, @ANYBLOB="18001680140008800d0002006970365f76746930000000001400168010000180090002005d247d5b00000000"], 0x648}, 0x1, 0x0, 0x0, 0x4008055}, 0x1) sendmsg$nl_netfilter(r2, &(0x7f00000000c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000080)={&(0x7f00000001c0)=ANY=[@ANYBLOB="881500000d06010426bd7000fddbdf250300b3e146116e800c008e001f0e00000000000008005300", @ANYRES32=r4, @ANYBLOB="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", @ANYRES32=0xee00, @ANYBLOB="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@ANYRES32=r6, @ANYBLOB="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", @ANYRES32, @ANYBLOB="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"], 0x1588}, 0x1, 0x0, 0x0, 0x40040}, 0x840) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x5, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x6}, 0x60) [ 335.598165][T18808] batman_adv: Cannot find parent device [ 335.659150][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 335.663151][T18808] batman_adv: batadv0: Adding interface: gretap25 [ 335.695080][T18808] batman_adv: batadv0: The MTU of interface gretap25 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 335.801510][T18808] batman_adv: batadv0: Not using interface gretap25 (retrying later): interface not active 06:52:37 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(0xffffffffffffffff, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:37 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x700}], 0x2, 0x0) 06:52:37 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0x0) close(r1) [ 335.941311][T18828] batman_adv: Cannot find parent device [ 336.001140][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 336.018765][T18828] batman_adv: batadv0: Adding interface: gretap34 06:52:37 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x1100}], 0x2, 0x0) 06:52:37 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(0xffffffffffffffff) [ 336.041094][T18828] batman_adv: batadv0: The MTU of interface gretap34 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 336.074843][T18828] batman_adv: batadv0: Not using interface gretap34 (retrying later): interface not active 06:52:37 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 336.179024][T18841] batman_adv: Cannot find parent device [ 336.241320][T18841] batman_adv: batadv0: Adding interface: gretap28 [ 336.253764][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 06:52:37 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x2000}], 0x2, 0x0) [ 336.302558][T18841] batman_adv: batadv0: The MTU of interface gretap28 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 336.363565][T18841] batman_adv: batadv0: Not using interface gretap28 (retrying later): interface not active 06:52:38 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(0xffffffffffffffff) 06:52:38 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x3e80}], 0x2, 0x0) 06:52:38 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 336.610280][T18851] batman_adv: Cannot find parent device 06:52:38 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x3ec0}], 0x2, 0x0) [ 336.676749][T18851] batman_adv: batadv0: Adding interface: gretap26 [ 336.708383][T18851] batman_adv: batadv0: The MTU of interface gretap26 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 336.714264][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 336.776669][T18851] batman_adv: batadv0: Not using interface gretap26 (retrying later): interface not active 06:52:38 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$nfc_llcp_NFC_LLCP_RW(r1, 0x118, 0x0, &(0x7f0000000000)=0x5, 0x4) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:38 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(0xffffffffffffffff, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 336.849601][T18869] batman_adv: Cannot find parent device 06:52:38 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x803e}], 0x2, 0x0) [ 336.941169][T18869] batman_adv: batadv0: Adding interface: gretap35 [ 336.979977][T18869] batman_adv: batadv0: The MTU of interface gretap35 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:38 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, 0x0, 0x0) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r1, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000000480)="e4", 0x1, 0x0, 0x0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0xef) close(0xffffffffffffffff) [ 337.109046][T18869] batman_adv: batadv0: Not using interface gretap35 (retrying later): interface not active 06:52:38 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xc000}], 0x2, 0x0) 06:52:38 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) writev(r0, &(0x7f00000004c0)=[{&(0x7f0000000000)="9e3175645818818932b21f25bb400f208bd5f9fd579fabefd18b77e6456dbe5963722c2188f1632f59696413b96aaf980956b0c474cfd9ed852f4bca5affd0ea32e76673d3c2b49fea43faa0c080efd8eb8ce65ce35d5923edcfb2f248e0db37c06df1c7a78b4d6a8f32b4eaebd99d92c3292215b0119306501aa8af83f06d4a50842e562830eebe50dc15185c66e8f1f71763f6635c7b35456b59ffc35d68c0ad6130ea13c9f53f98a9530983b5a54728d452f824bd4cf3beeca22d7080", 0xbe}, {&(0x7f00000001c0)="50a15067b9f1888057ea4f411ea309f0ec4c6cda0f46bd99e9326d50c39d3af7c1480dd9309d463c7c3daa1045283907889e4043674b875ea5699875f1700b79eee20b90cb6d99c2448c63e7aac312d2dcdd042676e3f3ef07c9a78c3a4b79135ed35ac6c70a7b6d2ea51b08eab6baa1bd6924721d890543db50d7923949cd7beffb8437dfbdaa3d8623330d3db4eeac863c135a2413a89438912aa6c83ea9f7fdff46685f56f22c0e75a49c90e46ef2384b303418c610562d1b6170219926c77610041b9a1ef7c70b1abfd991102e63e7c6016192", 0xd5}, {&(0x7f00000002c0)="55c217fa9cdf22fd31d120aab8e1131925471a2ac98ca815787cc68a3d61426769acb26b6b1be935b139bee1c6978236acee86c6f8cdbf67d0999cacde913d0800e3c440ef8855fb8bf6167346e737fdbefaaabac0a0193bac39d02b4761d7fea867dfc0bacfbd18bf1a4d87d368e30e57f86684e233f897310826badabc66d2bb58681905bbbbf436d5638610f5a9c3b8c49bdeccf406b28c2406968b38a5a022d62b74a9d6f75fd97962c0b19e10f3d6af42cca75605386ef64a53342c9e71c26cfbcc0afc531f21ea", 0xca}, {&(0x7f00000003c0)="ad465bb45d4d6ab5e9c97ff1fa56e5134f277ea3f5ba115aea48e01e5ad32298472079bb41d5cc20baa37c773b85d3f487a32713d574beaa7b4316c95b9ac31631d410c4f58298e975cbaee38db57e03dccee2cc1890fa05014c1507402351d7a7f0751c53978b09fdde1258c7ead075cce89dde5c717733421e439627c2cd9a9ce1191e193f2b29e07f6c5f825972ee7c2ca356bdbe0823814d7a6b974d992087fa8152b2ea946601f8926ab83f0ad4c627d0b18469e6b2d00848388170e0ac623cbdbc0a9a86bd0eaba740a3af73cdce8e92f625145e7c07ebc7fb", 0xdc}, {&(0x7f00000000c0)="34d27421ddcce6709de2dd80fe1abdc90c38fcb65c6e24343db2cff31a798616c0ceefe2fd2554a68f1dce30fc26110a0fcf9d4d255ce9", 0x37}, {&(0x7f0000000100)="fc27534bc11def8ebc5623bffda5c7158b054a43ccf0ab9d8afbc992d30f15ed369278fc7264919fc52a4a46e2b273", 0x2f}], 0x6) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:38 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 337.258740][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 337.286434][T18891] batman_adv: Cannot find parent device 06:52:38 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xc03e}], 0x2, 0x0) 06:52:38 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) r1 = socket$unix(0x1, 0x2, 0x0) bind(r1, &(0x7f0000000000)=@un=@file={0x1, './file0\x00'}, 0x80) bind$nfc_llcp(0xffffffffffffffff, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 337.373708][T18891] batman_adv: batadv0: Adding interface: gretap29 [ 337.405152][T18891] batman_adv: batadv0: The MTU of interface gretap29 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:39 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x33fe0}], 0x2, 0x0) [ 337.553964][T18891] batman_adv: batadv0: Not using interface gretap29 (retrying later): interface not active 06:52:39 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:39 executing program 4: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:39 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) sendmmsg$nfc_llcp(0xffffffffffffffff, &(0x7f0000009080)=[{&(0x7f0000004e80)={0x27, 0x0, 0x0, 0x4, 0x40, 0xfa, "c4498246cd58e92b5801f33da2b22a8f9ec203e72b3ebc9ae398d523ad2184c0380ca2b4e1699176dd5e87fcbbb822cd6225a301a0721dd3087702ec4c0b99", 0x3c}, 0x60, &(0x7f0000007140)=[{&(0x7f0000004f00)="930d53cbc93b5039301b577255836505870ef60ec44e37eea2d94dcb0f1a", 0x1e}, {&(0x7f0000004f40)="40a4bd0be0b01c9b8a75672c4d9b100293e21b0eb3c75f1a5874542986", 0x1d}, {&(0x7f0000004f80)="e90963fe", 0x4}, {&(0x7f0000004fc0)="bc478b017ca46bac3afe6911af3ee7a9f44af85e8bf501b47c9481c2bae34880e6c80efc7d9f953fa27fac81fccd0d76a81b2de1af0d79efdc0855f9c41c796137cd9112b8b59fc5f76950beb9d2027ce93d824bdba0", 0x56}, {&(0x7f0000005040)="27e1982abe7a073a291d5373defcfca96d1aa0feff0c9cfaef3df61b40d33e289e3e125771070cab921a030fc409180b10d838d76fff97ba176ebb0ee9975945a084c076781909f1f92b9b77004ad8e6532e64887182a7c3dda91b2b55841dff7f364399fe8f432846d26a09b241ec55324eaa0c0ffb9fba8759bed88eabdbe4f89df42d8b8b60c079663322b59b103e8ca73249aec22938b361b398818bf5720b1a0c4ecf4a076dfc8d85f4ee3dcdd6510572da4753891a1405f5af3b4147fc706533deb251ddddbf54061082c8a2973068ccececcde9ca78324c611926c3eed03e9cfd3db37950c431da00cc5ebd0223fb55354edea1", 0xf7}, {&(0x7f0000005140)="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0x1000}, 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{&(0x7f0000008b40)="a73f713a6234a5733d712547869738978331152346c94c08efa522132ee2a778b2287249b9c4e4149d6b9ed1214f71d662f18273bfceaf4d5519680503375f21711b93b07cd93e5095129feed7aac67c72dbbe0ed5314d279b428f01ddad4fb5e3ae7e56f8d2872a7314153dc25a07c3ac2ac6e7420178b46eccf6846302f9a9eb9e7330c9e837b549a412932ec801933dcbc488eac1bdc2411565515f85cc76efe6ffcd629fbbd32c43a365ade05284a31570b9bfaf05b24c5edd0ca138ee23ed159c0511d6402cbdf93c8215a6851d58647dc766cbb15865e1a389a3b671d84ffb5603709e2b5eb51d2bcd349a679d45434ae779789e", 0xf7}, {&(0x7f0000008c40)="82f92e0d9ac0183f48b6fb3b116d1cdf19e824ccb57dde41e563ae834e786029bad2b255f8f85c79a97e7668d794292f13329ebab4d4dc230af30a9805dabbe593cfedefef22e6e5f0cf2246629220fa5da03ad1b545a9ace8a80672cc5ac896d638795a9421ec963d7aa7d4340854927d2963552997485649ea577e5271e86790a59d9521b355", 0x87}], 0x5, &(0x7f0000008d80)={0x80, 0x118, 0x2, "75472d7f1bf1600c2ef7bc196c0cc42f47b4de9394436b19f3ee0b1c236f54b0fa78fe2f9a540e919a975a526d94b14b81c710bad0253d1cbe5a9d604138d84a0da0fe8cfac24521bbe2dc22973b1b5d61672af5a570c01ab638f624904e67c302a25ed93da1b8907f74ec422255c471"}, 0x80, 0x24048000}, {&(0x7f0000008e00)={0x27, 0x0, 0x0, 0x7, 0xc3, 0x80, "2e6b13ff16733be1e4f54566e3576221613a9e5282868fe99c180285c7c85c851be64bdcace60acceddd5dd0b2f1185301ba8344f4dd23ad76a6ab0b0bcedb", 0x3f}, 0x60, &(0x7f0000008f80)=[{&(0x7f0000008e80)="0e6c83a4d76f9528a014f6b43aa3f0d9d096b84913cb6d394a7f8dceb95ae46ff5c327ba51a2189d671a894dac254c0100af5cadaef04de119c50b6f68ab560c5245743a80b7683e9573c96957c69cdb43b68c9cff2a8c2d59712c80342b6ae45ff4a5f6ba2e5a82d878790c89e2adec90789144d90a03574b52a030e58702a5c322184e3c1a96453b0d2a66b486d8f3a2af9e67d7982fcb57911cbb930ba08a257a5f30a2e5cf27313f12fece7a7b91a155ac1400926c28dab2dca4a55c11e3e7bf17c1e615e48c9d8fa1c364dd245300a470a1691836d964efa36f02843ccf3b45a79d6a7f95ce2a24473387c090b2c8ab4d92fd", 0xf5}], 0x1, &(0x7f0000008fc0)={0xc0, 0x10e, 0x0, "ffcaaeaa9bb4164ed5705626a1e431536994a692dc8b3234f011dbddc28e16406431bbd2e006a54723a5f2d43e0317b0bdf7cc4aedd16f6e1ccad588a22b97f8b2f79848cc338aae72000e48ec2e069b6f10daa92edf30456756f93711227136a78d5f36ba25158b988df85ab1983d88393925484d70e3959d7bdd92a7658fa82b99e79c9eeea6a50ec497d3846dd4dce974793655a0d86e6b9f8dd1e593a03b982a1cb9ebae33b3b4f7"}, 0xc0, 0x60000}], 0x4, 0x20040041) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) r3 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000980), 0x40000, 0x0) ioctl$SNDCTL_DSP_SUBDIVIDE(r3, 0xc0045009, &(0x7f00000009c0)=0xffffffff) sendmmsg$nfc_llcp(r2, &(0x7f0000004d80)=[{&(0x7f0000000080)={0x27, 0x1, 0x0, 0x5, 0x8, 0x6, "682f0985c351e1e90024d1ceeb77021dc85d052e1e3d9f9366b49475bf1df5a1fffe37c864ad2169f6c4ee41eb53f71c7de1ca49421790b028472147f9ff74", 0xa}, 0x60, &(0x7f0000000100)=[{&(0x7f00000001c0)="95a80c463d77a21260bbeafdd0696938733b9bed7738894da007faa62164e73dc5905fa7727157d8b5bbc97a7373d26c343ac4cd2855601141dce63566d5cfb13335f5b7e40e79c7fc8770dd948680730ca3", 0x52}], 0x1, &(0x7f0000000240)={0xf0, 0x112, 0x0, "a97863c082fec01a97a7d765ec148cc58967fa623e054812af7eadd422bcd48cbfb47c8bca53140d310a5bfb49d210f401ca1789b8e2a35404178d766ad20fa2e803452dc178214145b5d900137b7dc9be491cde5e51d68f831b88b464c26d5aca55607dc9a0ad517db77cedffd613933aed589995a47ea324f972d9632a10ab88449740e3bda1de1984fc86345e6a9e30bd28bb8268a69d1089c4a3862834cc36d77c87a993a47caca1f353bb99332b1e9c8f24aadd59b816391a7e6b1e2c668e5210118e74f17e123f29701549d7a11ea5dd20f0cf7540420dc42232"}, 0xf0, 0x20000000}, {&(0x7f0000000340)={0x27, 0x0, 0x0, 0x7, 0x5, 0x40, "7f69d1cd062ada43b0024e63d6b45e3770614151fd0e5b92e7b97b41e70c349bc58fb344efd033ddecf33605d406a9d3ea9e111575a98b4b3fc8d5e35eb7a4", 0x35}, 0x60, &(0x7f0000000540)=[{&(0x7f00000003c0)="2bfca1403517628a45cbba3c5739a10fd455abca74545d777506d1af852ce131789c191c7ebe213e3c435714a7f55bc86aa21bb6", 0x34}, {&(0x7f0000000400)="8df7e7cb38f6cc65361c68f209782442756664e37ccf2a27b9cf51ae72ad5dfea8182ccb49398a17051a00f0d89c293ffd83dd53df6a0117959faced08e288d654d9aee520b2a226ac47b1108cabb9e3bf619267da37198d729cfa9dd199be835a9d754b79d47f9a9022edc9ee9dfa309c8be49358c8db87ce2413766d209a31b6c122938466b8710eeed11ebb9e09b771d500d1fba8973f13f4355cd1a9c83af70cc789cf05b925af7babda5cf026a1f420d60699b2bca4693bc9bd8ee164660e9de5861fd1bf3be2871816464d1a9330fc8aabe20cc28652f4aefa615bccbe3aef31e04701e1a09b72125af3dd", 0xee}, {&(0x7f0000000500)="4c98c3a63b45e05dbc43ef", 0xb}], 0x3, &(0x7f0000000580)={0x68, 0x107, 0x80000000, "2384bf0a0a9b7c0361badbdadfcfab63dee1134abeda1b767adf60458e7343982da285013079865c7cef38a404e07882e4a09d2a1ae0bceb82b46772a5ef6f2f34506bab0681492e3dd8f5cb3be7beec2a6f"}, 0x68, 0x4}, {&(0x7f0000000600)={0x27, 0x1, 0x2, 0x5, 0x4, 0x6, "499c24ef467dc683e67817f2cff0cf2637d44c352d40c0ebf40b811f7c45103ab149e0e2eb4aa89dc73c1d34e404d111ebd5fe193f7bc06f9667b1be616fb6", 0x1b}, 0x60, &(0x7f0000009300)=[{&(0x7f0000000680)="6b72b6ad386a9da451e2d6576c727113cb7f96af1fe7995ad6ce5be45a265d0653e66bc29c1ebc494bc3c8007c2287a8a7ae20839067c2dc7f75b099714ab5636617dacc3bc53e26c5d15531de8c1e2af7e45020a84ceaf68f90d3eac913faa7051f162bad491fe730b63799e69d489944f817d95fa8ef8d2d2c7565853559149c001f5c4b581dff43975c5cce6e59114aeb56ef9a947931f9", 0x99}, {&(0x7f0000000740)="30710327df34e8d6ad3ba4442912c0fc9f21a507dc920fa16d526074c86dd70a5d10711708a41d97aa471f024326e8c89a7c17c3e0d7d358fc8baefa1b4df36212a053332f09f1ca1e71aa7349c582c22b3ad817d1b69e8f9545737364b94f3f0a27899e87500cb0d28d5b0d1ad1fb1356b95dbf0fd99251dfef2cc037d6498fc87a614331861e9f6790bd992bd277f2246e1a9262248f33fc932b84d21ac982252c9e3383039e4624848898e218286c3eda857f21f5f93e32496224ade4a2146d", 0xc1}, {&(0x7f0000000840)="413d316ab3d84975a2719d96711b08a9a1667ae3eae73851c878b8193a82105bf338d53aac6bf58750d467ba46e2f29c03ca29cf25c8", 0x36}, {&(0x7f0000000880)="ac9f051b41c07c9609f6608b1697dbebd550ae91db", 0x15}, {&(0x7f00000008c0)="f27ea7b0c9b21f24", 0x8}, {&(0x7f0000000900)="70e3bad3aa6294401bf4afdd640111dcebd59355b8a6ce37786733a1b6aa998db80aab4c144b83d9da46b9ebd210192e4ad08d7ea3e274b708feb741641b3dea98e168f779162648d7dd429711e4ff", 0x4f}, {&(0x7f00000071c0)="3ecaf51de5c276e193710656b352f946", 0x10}, {&(0x7f0000007200)="6735abb2035759b1aa72dea6034a42d6e47f0b47d207a8daba4973fb998039b2e444f2", 0x23}, {&(0x7f0000009280)="75c0f8dadc51c3af68f93142c2c8df9257c13d1ce7c8b563fa150eb91ba425ca2750ff62ee4f6a4b4faeb35c10f0e10f5da1dcb8ccc86942c6323b68159c203d3ac3b64a135cdab4e8e06194c8f69746", 0x50}], 0x9, &(0x7f0000000a00)={0xa0, 0x0, 0x80000001, "e154e18b6dab2db0deffc9252b255a01f8c23e9b4a99dd8841c1cfe94773a9e3d46f3f2f41a3fe9734357a09fbad6aff928a60e9d6eaffa239a68f174e0b01cb1ae713a5ea73f1f2d7a331a9d0edb407833c0e87dfd4dfb5d7ed51524c321f44fd55f8bcce215b8f0c291702a73083159078353bc12bb70914bc65a26e4774fd006dd904fb4659b3dd97"}, 0xa0, 0x240400d4}, {&(0x7f0000000ac0)={0x27, 0x0, 0x2, 0x3, 0x81, 0x2, "961144ea2f56d702199096667639130667fb111cf6376b3b1d6e5378b360a1d24aa04ef76cb28bb922f3ac42e0542418dd0b3ee9458989b7949b38520b04e8", 0xe}, 0x60, &(0x7f0000004c80)=[{&(0x7f0000000b40)="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0x1000}, {&(0x7f0000003c40)="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0x1000}, {&(0x7f0000004c40)="b1f7d3a1e3b3d34a2932eaa14991", 0xe}], 0x6, &(0x7f0000009840)=ANY=[@ANYBLOB="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"], 0x50, 0x40000}], 0x4, 0x24040085) bind$nfc_llcp(r1, &(0x7f0000000000)={0x27, 0x0, 0x0, 0x6, 0x7, 0x80, "3513dc0a4bdeb03d802c1254029552ea71e88794cb97c6f632218afb63ee632d041e55b04f37a9cc299905a257fcd3be384b61b47137d9e2d52e4e71e96b3c", 0x21}, 0x60) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) ioctl$BTRFS_IOC_SCRUB(r0, 0xc400941b, &(0x7f0000009440)={0x0, 0x803f, 0x3}) close(0xffffffffffffffff) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(0xffffffffffffffff, 0xc02064b2, &(0x7f0000004d00)={0x30, 0x1f, 0x81}) ioctl$EXT4_IOC_PRECACHE_EXTENTS(r1, 0x6612) [ 337.720187][T18897] batman_adv: Cannot find parent device [ 337.772683][T18897] batman_adv: batadv0: Adding interface: gretap27 [ 337.792265][T18897] batman_adv: batadv0: The MTU of interface gretap27 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:39 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(0xffffffffffffffff, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:39 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x34000}], 0x2, 0x0) [ 337.924547][T18897] batman_adv: batadv0: Not using interface gretap27 (retrying later): interface not active 06:52:39 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000080)={0x27, 0x1, 0xfffffffb, 0x4, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdf0280f2d9b699c6deab99e04eb2e27a355fee00005981000000000000008f85d47cefbb6d00", 0x34}, 0x60) listen(r1, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$SO_ATTACH_FILTER(r2, 0x1, 0x1a, &(0x7f00000001c0)={0x1, &(0x7f0000000280)=[{0x6, 0x0, 0x0, 0x3}]}, 0x8) bind$inet6(r2, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r2, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r2, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r2}], 0x1, 0xef) close(r2) accept(r2, 0x0, &(0x7f0000000000)) 06:52:39 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x40000}], 0x2, 0x0) [ 338.055590][T18922] batman_adv: Cannot find parent device [ 338.111643][T18922] batman_adv: batadv0: Adding interface: gretap36 [ 338.145124][T18922] batman_adv: batadv0: The MTU of interface gretap36 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:39 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x400300}], 0x2, 0x0) [ 338.240639][T18922] batman_adv: batadv0: Not using interface gretap36 (retrying later): interface not active 06:52:39 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r0, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(0xffffffffffffffff, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:39 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$SO_ATTACH_FILTER(r2, 0x1, 0x1a, &(0x7f00000001c0)={0x1, &(0x7f0000000280)=[{0x6, 0x0, 0x0, 0x3}]}, 0x8) bind$inet6(r2, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r2, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r2, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r2}], 0x1, 0xef) close(r2) ioctl$ifreq_SIOCGIFINDEX_team(r2, 0x8933, &(0x7f0000000000)) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 338.363446][T18940] batman_adv: Cannot find parent device [ 338.435073][T18940] batman_adv: batadv0: Adding interface: gretap30 [ 338.441759][T18940] batman_adv: batadv0: The MTU of interface gretap30 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:40 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xf0ff7f}], 0x2, 0x0) [ 338.556645][T18940] batman_adv: batadv0: Not using interface gretap30 (retrying later): interface not active 06:52:40 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r4, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r5, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB], 0x44}}, 0x0) r6 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r6, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 338.678204][T18939] batman_adv: Cannot find parent device [ 338.688462][T18939] batman_adv: batadv0: Adding interface: gretap1 [ 338.697556][T18939] batman_adv: batadv0: The MTU of interface gretap1 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:40 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xfeffff}], 0x2, 0x0) [ 338.826482][T18939] batman_adv: batadv0: Not using interface gretap1 (retrying later): interface not active 06:52:40 executing program 4: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:40 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db79882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed09594a8cbf27b9afb59d8f85d47cefbb6d0200", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) r2 = openat$char_raw_ctl(0xffffffffffffff9c, &(0x7f0000000080), 0x200000, 0x0) ioctl$BTRFS_IOC_GET_SUBVOL_INFO(r2, 0x81f8943c, &(0x7f00000001c0)) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r3 = accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) bind$nfc_llcp(r3, &(0x7f0000000000)={0x27, 0x0, 0x0, 0x4d25e94d39f8d698, 0x40, 0x1, "991483cab7107ad1c0cf850bec79040eb5e0ca7ad8c8a03a5daed661c068f9e35665b2c1bd89bb76e9cc458a1711117abb4228e5b266fd72fa6300", 0x24}, 0x60) r4 = memfd_create(&(0x7f0000000900)='Y\xff\xff\x00\x00\x00\x00\x00K\xb2\x02\x80B\xe9\xe8\xcc\xde\x06\x00l\xa8\x1aJ\xaf\xb2M\xba\xb8_\x05U\xcd<|>\x9e\xec^\x0e\xbe\x18+-\x9b\x893\x02\x00\xa6\x1f+\xb3\xc5\x90z5\xe0\xdfi\xb7\x9f\xb4QW\xc9\xc9\x92\x03\t\x00\x00\x00\x00\x00\xb2\x0f\xee\xbe\f8\xcc\x7f\x00\x00\x00Z\x81\x00\x00\x00\x00\x18I\x13\xf1\xa2x\x04\x81R\xd45R\xae\x84\xcdN\xf7\xf6\b~\xed_M^dQ:\xbc\xafq\x88\x19nSF|;]\xe1A\x8c\x8a\x98\xd7|\xdcLF\r\xb1\xfd\xbf!\xc7u\xccP\xdd\x13~\x89\xcf\x85\xca\xa0%\xc6\xc7\x11\x00\x00\x00\x00\x00\x00\x00?M9\\\av~\'\xd9\xb0\xacdya]8\x9d\xb7\v\xf39\xc5{\x9c!\x0f/\xb8o8\xb9\x8d\x19\xe2\xca\x01y\x83\xe7\ng\x87\xd930xffffffffffffffff}, 0x80000) bind$nfc_llcp(r5, &(0x7f0000000400)={0x27, 0x1, 0x2, 0x6, 0x6, 0x9, "a82480899c141dcd5c3fe08978700b7044e89c047024d8be099c546227cef467fafd12a77c769049930b08532360852673bc99f31277d54eda8097e47f52ea", 0xc}, 0x60) mmap(&(0x7f0000200000/0x400000)=nil, 0x400000, 0x0, 0x10, r4, 0x0) r6 = openat$vsock(0xffffffffffffff9c, &(0x7f00000000c0), 0x292080, 0x0) inotify_add_watch(r6, &(0x7f0000000100)='./file0\x00', 0x651b65dd0d7d416a) mmap(&(0x7f0000ffd000/0x2000)=nil, 0x2000, 0x2000008, 0x1010, r4, 0x6515f000) [ 338.948860][T18954] batman_adv: Cannot find parent device [ 338.966426][T18954] batman_adv: batadv0: Adding interface: gretap28 [ 338.981245][T18954] batman_adv: batadv0: The MTU of interface gretap28 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:40 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x1000000}], 0x2, 0x0) 06:52:40 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) sendmsg$nl_route_sched(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000000c0)={&(0x7f00000006c0)=ANY=[@ANYBLOB="60000be0ffffffffffffff0000189200", @ANYRES32=0x0, @ANYBLOB="04000e000c000900e0ff0f000d00010066715f636f64656c000000000600050001ff00000b0001006d756c74697100f00800010063627300060005005904bfda06000500041f00008266264adefd26a6b822725a31edc266d714d2c22bc37f7e4256ce9048533d3c2524b9a2d5e1e389220b559a7c43862492892be8694e52e1714d15f37d4c3f4578d4859eb5db135c82915346b3a9928aed800fc63e43a329c01724b1035eb49cbcdc50848e48f0ba900a6c7fbeb5c369717823fef82e13c799792fb9e4"], 0x60}, 0x1, 0x0, 0x0, 0x48004}, 0x6c586dc94b0aaad4) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x2, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x3a}, 0x60) listen(r1, 0x0) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$SO_ATTACH_FILTER(r3, 0x1, 0x1a, &(0x7f00000001c0)={0x1, &(0x7f0000000280)=[{0x6, 0x0, 0x0, 0x3}]}, 0x8) bind$inet6(r3, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r3, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r3, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r3}], 0x1, 0xef) close(r3) accept(r3, &(0x7f00000001c0)=@pppol2tpin6={0x18, 0x1, {0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @private1}}}, &(0x7f0000000240)=0x80) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 339.109665][T18954] batman_adv: batadv0: Not using interface gretap28 (retrying later): interface not active 06:52:40 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 339.219149][T18971] batman_adv: Cannot find parent device 06:52:40 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x4000000}], 0x2, 0x0) [ 339.311747][T18971] batman_adv: batadv0: Adding interface: gretap37 [ 339.351479][T18971] batman_adv: batadv0: The MTU of interface gretap37 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:40 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x7000000}], 0x2, 0x0) [ 339.409657][T18971] batman_adv: batadv0: Not using interface gretap37 (retrying later): interface not active 06:52:41 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r0, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(0xffffffffffffffff, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:41 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0xfffffffd, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x1c}, 0x60) listen(r1, 0x0) r2 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) bind$nfc_llcp(r2, &(0x7f0000000000)={0x27, 0x1, 0x0, 0x4, 0x39, 0x1, "d100b56b401537b8e89a4187d8f1689df1f52b19497291e087132fbefbf4527aca0226ab2baa332c0cf912fd47de3e934a0337ec3c42fed075ac8521faf2f9", 0x21}, 0x60) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 339.541113][T18984] batman_adv: Cannot find parent device [ 339.603216][T18984] batman_adv: batadv0: Adding interface: gretap31 06:52:41 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x11000000}], 0x2, 0x0) [ 339.640937][T18984] batman_adv: batadv0: The MTU of interface gretap31 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 339.728926][T18984] batman_adv: batadv0: Not using interface gretap31 (retrying later): interface not active 06:52:41 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r4, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r5, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB], 0x44}}, 0x0) r6 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r6, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 339.814960][T18997] batman_adv: Cannot find parent device [ 339.869022][T18997] batman_adv: batadv0: Adding interface: gretap2 [ 339.891572][T18997] batman_adv: batadv0: The MTU of interface gretap2 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:41 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x20000000}], 0x2, 0x0) [ 339.979412][T18997] batman_adv: batadv0: Not using interface gretap2 (retrying later): interface not active 06:52:41 executing program 4: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:41 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) getsockopt$IPT_SO_GET_INFO(0xffffffffffffffff, 0x0, 0x40, &(0x7f0000000000)={'security\x00', 0x0, [0x9, 0x1ff, 0x0, 0xa2, 0x101]}, &(0x7f0000000080)=0x54) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r2 = openat$smackfs_syslog(0xffffffffffffff9c, &(0x7f0000002f00), 0x2, 0x0) r3 = memfd_create(&(0x7f0000000900)='Y\xff\xff\x00\x00\x00\x00\x00K\xb2\x02\x80B\xe9\xe8\xcc\xde\x06\x00l\xa8\x1aJ\xaf\xb2M\xba\xb8_\x05U\xcd<|>\x9e\xec^\x0e\xbe\x18+-\x9b\x893\x02\x00\xa6\x1f+\xb3\xc5\x90z5\xe0\xdfi\xb7\x9f\xb4QW\xc9\xc9\x92\x03\t\x00\x00\x00\x00\x00\xb2\x0f\xee\xbe\f8\xcc\x7f\x00\x00\x00Z\x81\x00\x00\x00\x00\x18I\x13\xf1\xa2x\x04\x81R\xd45R\xae\x84\xcdN\xf7\xf6\b~\xed_M^dQ:\xbc\xafq\x88\x19nSF|;]\xe1A\x8c\x8a\x98\xd7|\xdcLF\r\xb1\xfd\xbf!\xc7u\xccP\xdd\x13~\x89\xcf\x85\xca\xa0%\xc6\xc7\x11\x00\x00\x00\x00\x00\x00\x00?M9\\\av~\'\xd9\xb0\xacdya]8\x9d\xb7\v\xf39\xc5{\x9c!\x0f/\xb8o8\xb9\x8d\x19\xe2\xca\x01y\x83\xe7\ng\x87\xd930x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x7ffff000}], 0x2, 0x0) [ 340.130745][T19007] batman_adv: batadv0: The MTU of interface gretap29 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 340.250996][T19007] batman_adv: batadv0: Not using interface gretap29 (retrying later): interface not active 06:52:41 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:41 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x803e0000}], 0x2, 0x0) [ 340.383140][T19025] batman_adv: Cannot find parent device [ 340.440529][T19025] batman_adv: batadv0: Adding interface: gretap38 [ 340.478709][T19025] batman_adv: batadv0: The MTU of interface gretap38 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:42 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$RXRPC_EXCLUSIVE_CONNECTION(0xffffffffffffffff, 0x110, 0x3) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) getpeername(r1, &(0x7f0000000000)=@pppol2tpv3in6={0x18, 0x1, {0x0, 0xffffffffffffffff}}, &(0x7f0000000080)=0x80) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r3, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) accept4$nfc_llcp(r2, 0x0, 0x0, 0x80000) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e291ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 340.547749][T19025] batman_adv: batadv0: Not using interface gretap38 (retrying later): interface not active 06:52:42 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r0, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(0xffffffffffffffff, &(0x7f0000000c80), 0x400000000000345, 0x0) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 340.690205][T19036] batman_adv: Cannot find parent device 06:52:42 executing program 1: r0 = semget$private(0x0, 0x4, 0x12) clock_gettime(0x0, &(0x7f00000003c0)={0x0, 0x0}) semtimedop(r0, &(0x7f0000000100)=[{0x4, 0x2, 0x1000}, {0x0, 0xcf9, 0x1000}, {0x5, 0x1000, 0x800}, {0x1, 0x200, 0x1000}], 0x4, &(0x7f00000001c0)={r1, r2+60000000}) r3 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r4 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r4, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x4, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r4, 0x0) r5 = syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r5, &(0x7f0000000000)={0x27, 0x1, 0x0, 0x5, 0x8, 0xe, "fb0ad4eba21321d05267619515ba514f14ae788550559ca93f67c1ac7c2d77285a1b166d2b36af281514a48792531ba0a67511a21f7f87106db2174ab97b0e", 0x3b}, 0x60) sendto$inet(r5, &(0x7f00000002c0)="730c19f32ea38f56c7094b3ec606561ae00a4ff59dc33fd55d68104da9b66fa621022a8596c022143905b41a48ea91556fd0f8715d732ad05644ba14a2d515526ae7bfbb557d97243a943eff145786675dd5ae0a905b25699d58d917fea4708ca5cb7d8d391cd5fa84f5d4404070f6400bdd4f7e9740e2c251697df6d8a45589d34ab2a8525d", 0x86, 0x1, &(0x7f0000000380)={0x2, 0x4e22, @empty}, 0x10) bind$nfc_llcp(r3, &(0x7f0000000080)={0x27, 0x0, 0x0, 0x0, 0x0, 0x3, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x24}, 0x60) ioctl$PERF_EVENT_IOC_MODIFY_ATTRIBUTES(r5, 0x4008240b, &(0x7f0000000240)={0x3, 0x80, 0x2, 0x9, 0xfc, 0x9, 0x0, 0x5, 0x100, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x3, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0xffff269a, 0x2, @perf_bp={&(0x7f0000000200), 0xa}, 0x800, 0x101, 0x2, 0x2, 0x7ff, 0x6f6, 0x1d6, 0x0, 0xffffffff, 0x0, 0xbe}) pselect6(0x40, &(0x7f0000000400)={0xffffffffffff8001, 0x800, 0xf0, 0x1, 0x3, 0x1f, 0xf5e1, 0x9}, &(0x7f0000000440)={0xa643, 0x0, 0x0, 0xfffffffffffffc01, 0x4, 0x400, 0x1, 0x245}, &(0x7f0000000480)={0x7f, 0x8, 0x5, 0x0, 0x200, 0x80, 0x114, 0x4}, &(0x7f00000004c0)={0x77359400}, &(0x7f0000000540)={&(0x7f0000000500)={[0x9]}, 0x8}) 06:52:42 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xc0000000}], 0x2, 0x0) [ 340.735639][T19036] batman_adv: batadv0: Adding interface: gretap32 [ 340.778727][T19036] batman_adv: batadv0: The MTU of interface gretap32 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 340.872995][T19036] batman_adv: batadv0: Not using interface gretap32 (retrying later): interface not active 06:52:42 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xc03e0000}], 0x2, 0x0) 06:52:42 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r4, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r5, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB], 0x44}}, 0x0) r6 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r6, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:42 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) sendmmsg$nfc_llcp(r2, &(0x7f0000001a00)=[{&(0x7f0000000000)={0x27, 0x1, 0x2, 0x2, 0x40, 0x4, "db062e845b7a995d07c1d0af8f9f7bb87cd9e918c20c2f82eeb07b5e4af2181803248dc6a11063ae70da6c2627225fe301f1fc7f6338fd80894927024c8cc7", 0x20}, 0x60, &(0x7f0000000280)=[{&(0x7f0000000080)=']', 0x1}, {&(0x7f00000001c0)="a9eb2270d1c3eb4ab504f6e07fb8190d39b9b74c6b0169a18bbaaa32b24f5539b80115d3f8111b5b4418891fb07d4119953e46c6d46eb412ab437def450b8617916cec4c340fe014c12a5678544c72862a23decdb8c827f5bee46007a3d8f5f48620dfc58365290bd22d72a65afe1c974c17c5c3b9799eeb3d809821d435cb456fcdcb18ae540d6b04286d3b9eb7545e5bf46ccfb3f893552e47aaa1cb375889127706d862", 0xa5}, {&(0x7f00000000c0)="168498088eb0f5c4030885a7fd9f870f9dc54a7df4d1e46eeb6f7700fc6a68c8db53144cb7f3eafcaefb9209ef94fcc092549afc88ad8ff243b0c2edd2d26a44b1677ed50c60f9380d0ed783b0a730348e8c4902e0779a4f30bfc198", 0x5c}], 0x3, &(0x7f00000002c0)=ANY=[@ANYBLOB="1010000000000000050100000080000045992a73903322780370f8397f7268626be45cf264dc7272a4a20e33e54348b762729a66d2c1cae790e4fe37538943eeb5038259efeaecfa688b53852861c70c380df970bc7bcf3e79c5c69fdeda14d3d429a4d5f01917901f7e41db7c9cfb8cf55e044e0aef3243a64c1fbcc441d633abca5610dbb41b553873deedc31b98ab58097e2290d378e101783425d25a390a66a13763ba8b75eaf8d50ae9a8b476e433f2fa0d30b3159ae3c3819cc769b18f8f16276e1dc6e304a78f2e4e7f69a203c5d6410e236637768c1fac37fb306efc9ca96603052b88ad68b56bcbf10eccb535671ea238dc02e055a47c77f81284d1c8852116af9b08706f4e7bbc7dc8d48b3a5af621f4ae05912c594c11369afe009a751b18230b916d6a1b88fc5d0c380973cf92cdcdd0029a9503850f24e2c2acf05ff324affac4167458be2e78d3c1862926b61e7af57962fcc58d482ad24ce97c0ad0e4bb7280c51ef97ddfad1893cc1f402a0d777bd3c1c2d2cd9614349e1060ed6f1faa4e07bc6256ca60d65a7f1df980380a2286f899447e7e6404558785f88c195e3752fdcf5a55c4a6abfd7e17d81f6a5e58786fd6f19bae00de2fd555a9b657231802e088403ec29e3413817752498fc55a5a467c257bc5f993ee376d1b742a4e79288fa5b22bd701965624dacb50a1f9583472334e33ecc3540485d38e97a272fe4e619be8e355723bfc1b0979c524a8254d6152ed631f602b69384b8b36c55fe9cf0219dee34d360de5959109890a18d9b6602c6af3c917eea0bdfaf745a2fd117e37816fa1647e4831f09a2fa00724593e860d1854cf587ea893831f445894747d8257f590223e2e685f9283a67d6118ddea84361732fd51157bffb07c328eeae9ee7863d005b3d95dec0083fa5442e0743698a0618d1dea194835217cd927f50f8160259803a7c6cc61c092f1fdd6d90790779520f5a380c0d152417cf45a786f088f5433772a9ddabbcab4ad0562124b4687d460fa87df0b472c41a9596b7a76b07fef036889152b998f769997bb21f109911ee651aa5cd0618b7b03b35c85ce1e6b08591c9478cae8b8c588a5d22514e9455f6a801cdbed8cab1fa034426e095108e21cb29fc9cd6cfd21cc45e8c621458e388b1b48667be2323b6f8d0f446263c8e1d5beba25bb56f26215e8dada145e8d26ec185d91cc03b91f50b7b7bf61aff65c94114d215334cede16664c42790fafb041a159d82c68fa079fbfa16da94b559fbe1390098a1feecf4349ff5fed83837be9e02a959c09dc60761f043ca58aaaf05e9005f1aca0725bd79b541d6e717d26b2e02e7913b5deca63d5b8485accaf7012ffa3bb148df0926c896bd64b31cb6222ca8b5f3ceb1bb823cdafb11a07a9dd9fc0d0e15f2840ac79b47cf1730ff4fd6d686dde9db0911c90f7ce0e1fc163e7e38dfca7dbe839aae6620cd5f5a41006b75afbc44d20926f1dacbdd5069c29842108b4305c64def4af668f9db5867684a716458d013a88714c1bbe1055c7f8ba0f8cb29e8b55ae82dd69e643b695b2fcce9913bfab8fe48a0487e6293caf46707b5e5459acd67c7e44f9dd0421b49d5a7cf53cb6599ec005a375501c4492ed93fd78af3e6ebd728411b79957ced6b54869d60230c684163471405b7d976ef325e067285b8637387c679a7842c3b2a3ffbfb70fae842fbfb7b46b0fd1a0c5670d49f00e97d9a6388448c5ee9633de02c6a30f51b836133d6cc5fb7355c4c3949c68d5a4e84b3d6e160c66ae23e7b2a70b6abcabea2a9549bd86a1a98b72d3358c01142f39405e43831966d1d59f965684dc860ebd782d29b59f40da7cdd84f8447de2f7d57f18d4407480be091c8d71897ea8e8bf7889a5874d1ae0054d34757aed302c712790b12109083cb01ae7e5de0bb9e982ff17d1b13539eeb462229e0c186311dda864556d2fd7acfa12810fb1f1983a41e558f51db38767e6552996b90c1bbf0a2356c08d4a8c3b7162d3cb79af45df2a20a0f9e11121fcfbbb96b78a0624fcbe87b9e72b1c4c1b6fdc2495df3d3df9f45f3f5789341e5adaf2b90e38100dd862e3530dd51d01ae89e04f76a8afa2c93affd3add843e93298e1887ec1da3319dcd724e381b6c55a61d9483f7e7c926b41f2279de53510a253ae92a3069b70ad578a9cf02058dabe18fdf0fae86c2f8e42ef1e29a659d2af2ba24e0769838041224a69c0953e0a1625ada9e71a0e094133c09ad0f80e2431d910c56a104a4f8a47e8b9361f3bc90b54154131e3e35a0fc922b9ad4219d7165c717ecec86b0861c46a39c2b713410ee3587328556613275ffe3ad37319edadb2973c0630baa6c997a6c44ca48443241d6cccae3ed052a8c045abc80da8089c91385a8ed9f661e46a80ce23d64bf765b3916d9285231ae3a74d6b43ebb20275571f2395103d9297a6cadcbe9c8211227c8e8f138a2d4dc33101a358b04b6d1df21bcee273215ee137f87157bf90dc41006e96d1e797dd63e061ee5854c21143f1cfcc6d20e5a4eef1782ba40580ad536606519163bdab1f32864a54a58c67ac5fde64fd43d87bc667e828a3716c4768e309a514aa79d538773688d68690b260dbe942454ff0b3f28c702eb1dd5ebc47198bb8d0d5cdf539b4dd3176bdc0e5557e284bce33f812945028653dc7a9eaadb5f3c702ab4e79c5daf293ee61f8edbdec6851b8a6375de8a677d27b47f3d7f6c93f09c585d9a26641204b4c99bf65497151e2469b6ffdc3d051f7ccd115e5b9b6781d389a94efe3e4825280580f39acc8d52f79abe935f78b0ba3d872c25ffd87d92ed486a878d47dfec0fa7223eaf778a5254820a6ec57e688c130a23c86df80c6e64792b9008902d8f15369e18cd8fc972621d80b939beb99481a74a1dd811f1565acab5ddf994d31cfb4d823db88451f1489a270950d0385942071a63af08cae540cace6a2b6c63a9600e75b9edf496b8766efdd92b2109c19098c4bea13392329c0c1e15bf4e4b30e14e6ee0110f6ac2ebe6c467a4dc451cd52ce977efd526e22333b628754836f510c969958164f03fa31862b8f9c1043b2292d6c0e136b954f6cc7b07991a84147cb896b25b1078eaa1910d464ea4efa576a8863cbb95fb383c62af57fc7e58afe39e5a92c412b3546e6a4a2f5b34e1d440a939a1e1d053cfe85dfbf1094f6c6df16f15f701195c3df5f8e2d720f7a424a657eb547076444546419724eac9d9151ced9abd91817da55c14df39d6b09d1fbc89e60473f6a692aac45f2ee3be956dd33cc771634a042aa75e93df585642aef6c37e9465716d4339fb7ef34c70ea6dd456bdec42d0c5b91c82d0bc7daae417313fff46dcb9e8edce3069049a665cf4d6d0f57139594416716473d927b1766add40ea572de3644dddcb66c650cb629ee3dab12c278de013b20f518a5aa5c6307d2981938b9e0cce9fdaddb9e5d7aa20502d7f3252946b33f3cbf5f7fe6060e18c78071142b6db849e1aa81b6bf3c89cfef4bc7c5e2d056e235f337f1341e68cfa5e20ba50280580b8656f4a5bd3da8b70bc8422609c95639519e8964383193b330c68ee424e3feb859478befd316351ffd945e22e4be6490913513ef553cd782ed5c5154d8d80d0f149ae3d5957aea7a478c2f4ff62c759e0dcf17311e621172832424618f22e1bffd3c1d5445a3471a4fd0d78082f2bd44f3f3a223812e94cab2a08cfb371c9c98377401157a92672c0d5b19690fa91faef248b23ba785fe1d7e3dc42f37701d87872bd1df0211256933692e16191827d18c30c3194bae6cf029d3acfa1e17bd4ba7a75c07833d0e74a3eba2a684a4f4060c266e9c80b86f87b910ecd9132b57a9eb6b7ecbc66153d26a95d23faca96b0bb803ddbc1946910d3f40585d5f3ae7a6e53024bd1dc4ba7813580b39121093c3a1d5c3bb5536ce51f95393cc922f7a5dc8fcb79a389d1ce2ae88311647ef9d5d6bdc0eb5e452dd1ba9fccd44cc10008fc5d71cb7924bf0259f3166e4eff6f6124c121fc394a50fe04026a321af673e0a62ec2ea65e90718cb5cd89a316d62a460351a037c69450e4aca09fb12b5c0ad51f49b5f0171f999e9bae682b5c7f5c07026120460769cd5183ea8fe6e125ddbff09cbe9c789c0a63476ea9fc197dc8335cbbcb88cf36d8341011ae9af5dd45342c1ef9f12413881b29bc293cbebab70c2be4165ad3c5b0217398596e441281d80c9d6f14024f06dc971024816e55936ef128fdf9e22c0f28e10f08b076f08747c12569e9724335ceb95102d03b6176079bfed5ce1981cb8c102d91c519defa91717c742036f83cd128ec78bd12466eb71c277c9ea047b5e3621f9d5c8400397e07ed93cef26e22cd6670c1af1523f23583fcc950d6fa1b9607abd7686547027c6840b8dd003d5d1aa8834dadeb06a08fa8ec5167d7f243a25243b2ae87158f838d8f40734efcb44e780bc3846f90ec9b0b32380b2deea187faed034103698e70a1e637b6c1f2e315ddb33a861257c4eb8e08ceddfe8a0f8d876bcf381efa3dc56f7a0f112c17512804e89127cf417b1fb9dd3bbbb5b861595b53ee802dfa91ed3bf2bd7d8d01681763c07321bfd81799016c85195b405bf28bdc1b99c308000b08964291102621c89dc11478853eb498de335fa2654b20e8f9ac1eaff706580b27f56f78b2d3156a0de507b7df19f4d9a57ff5e115c68ce96af059239af24200f41a2079345f4906f00cf282e5a9ac15837c610dbfce20eafcc9d865a7bae61490722eef13e4e979f90ba3512cfc0d14cf8e566e3c4fe0dc6663688c60868a04f4d4f22a845afa9d2472fb609c4525c62c175d4a464f90957020b27327eaca561e1341b861d1f237f97bdb83c0a9cc5cd0d2243b81d5eaed506126d8bdae2c6d7017c45b110ee60f4940401710b2d5a67dfcfec9a499bd8c97894182dcbf599ab95779e924e014e0b5625650a17402faba8c75a80c73e38ef523b110df5b51b4a464b3f3c35759d9babf39d6654cd837e43ca6543faa1cff0dd2ee32717663c820fa5c1bcca20adba006d802c552da1ebc496907d2211728ebe5f2a427f41b44df811605069634e17cd8e2822194d56f0f1cfb2f81e5d53a8e38cd17ebcf1cef4b5235b310900a81610465d73b75d368e01d835b80d8fdc8738a7d1fc64c320550a0b742e6fa62264a1d809008ff26d1bad73711c7e0defad7a27ae8f46a3894e9f97ece0cf565b388a6a3af3d78c0c571b41bec8fc9363a3a75e41b3b9eaa09b9eb7ba7882ec0f08ee00a132924861eb1126a080dbf95fb9fccced0578300d15acc75098d28094e79339573bbe8ec473c405266ed65e37e6f26033c875735f4ddd06a29e293853a52e0b2badebc5adcc431ec1fc3fb765416802fb4e67679f0880c418ee57036d02147f9bd74ed961ca55bb512d32efc652f8e8706fd563f15107ac6f7093a387be95f06b17d3e8d1cb0659b71466188c0be9772a68a21a0de0552ad0b56a3ae73fca2b05356a067fb23aaf59bff3178032e7fb35ddd9481fb5d4f96362f96430bad7b415c38ba25d8844582cc0872e3cc17a4411b834a001aecda506c7011e7cf06c9256092a080bc104a073d9c2de0627c600c4a69248d5138a0a32fd078423045ddc7101749b279970f59b7f6680a2754f66c6b99b3297af3a33dee62075db96e9a2d6b167d4a2de9b717bb591dbd7a6e2ba7bd5e863e0a5b7df9b337df9dddf94aaac4e653b406c6010bebfecd81d69c79b86f690a2acaf3888dfd2daa0b0000000000"], 0x1010, 0x8000}, {&(0x7f0000001300)={0x27, 0x0, 0x0, 0x1, 0x1f, 0x4, "ecc92d9e9b6fe60dcff3318164595ec9a03b4380f86ed7f26359841aaba6edb673a2bc45ebd422cab96887f580c6c13e090c180a078279afb8b23d45c75668", 0x2b}, 0x60, &(0x7f0000001480)=[{&(0x7f0000001380)="5a9b4b8862", 0x5}, {&(0x7f00000013c0)="a4f92662b059b91037e70ad251464c7507d4e1102fae90cb0e46fd17cda6af4166e23848c03d8c6d6ebcfc2407cd41b6bac3fd8d5c4a4e021a4e5240b1588f5545d587746bc084e3522ab405cf4102355ce88321d54e113327678624b1bed1", 0x5f}, {&(0x7f0000001440)="dbe4351e4bb0bf7669887d6e1ad853de66", 0x11}], 0x3, &(0x7f00000014c0)={0x30, 0x0, 0x8, "bfbe0fb6a78ce194f029dbdd5e919abdc3a5aa8c6328efc3678e"}, 0x30, 0x40000}, {&(0x7f0000001500)={0x27, 0x1, 0x0, 0x4, 0x9a, 0x1, "b7636d831d5a40f551c3afac554e6c53e1915c3a8c5eec43c3033fa8490f60d60ee3ab929aef3b6e3ba7910d7fd0efcec2b80bbe60a290c2a88ef7519da8de", 0x17}, 0x60, &(0x7f00000018c0)=[{&(0x7f0000001580)="b1845137be63e5f36075ffba4917b82838b097a9b47504e2fd4846aadec0193f16dc4238eabd05f32bbb4ad8ee31fc2035488222d3479c1a5ab39425a6f986f10abf6bdb70bda3962517b61009ff814916c2550a227e2ea5225192204ea62d5c4409c270845163a53a01c09f60b51aee7e2f150af37d4af99ffc25e6130623132694bd6b1c7f1b4cf3a21a7d1445bace3e6c0d95772fda1ee981cdab5fa3a8", 0x9f}, {&(0x7f0000001640)="fd756f42897bbd12deb3", 0xa}, {&(0x7f0000001680)="8fa7b934b6ba30d6f9aed2e8c6c495c6c0bf58cd329f40f16ab1c766ff8aa95aee13116b634068684262305cba9d25cc16251697b04b2d29858483feed36c186b9887f21e97048dadf294c6cbd6143fdde5f6c9b10f214c454d732262e7e0a66ee9214ddd5526a09d3a9d317bb0034ecdaf2f2191f9e343cc52006555fb4e64292efce", 0x83}, {&(0x7f0000001740)="b2146d4a737a79c98e5165718a47877c6e93257d9807f4caa020e9a263797c1258c775e76c632b17dde09278c4532119687c4573c901d38730df751d829630df404d88ad0742765923b2a84bc87d172442cf8baaf88b7a2be98d987fe619a0bd4734201c35a44fd9fdc9dba48c7e41bcdfb5fecfa85213cc717e8de15356", 0x7e}, {&(0x7f00000017c0)="ac12f82b2cb6073e2e69f13815a2a8fcd96a136d91f87d6b22a755af81a90ffdd18b27746d108ceed149b27a9fe226a3f8cc519321d3bc8dfc51d5902b5c4113b25bc65be97cc60082ec3a38724fb47df8df46197488cbb3994a81c61852745f98e1af172777f12eb7bb3dfe68bf67aea496329617dbbe3fdd35ea53c8270249c7d6b55b74910646f3c263de9c513889717410da352307c1e0ef0e4ffbf7f2727c241069961aece13fd16df39a38dff84c28ebe726ad43d0061843106e07961d4a798eb973e094a06ff5525fbb81ede4337943f8e031a85543e8f1ceeb515fc15d2a3e3f1d32", 0xe6}], 0x5, &(0x7f0000001940)={0xc0, 0x1, 0x18f733c5, "4e5b46df9efa97a1c0ea85d75062c9a0b9f9cec297a4c3daff988ce614b9ca8c6c222dac980642091ff3f578663854a4fea17f483c121a9e282b4ac52e42f1815646bd10b6bf0f171101c1e24d1e3f81766439305cd2059a9ecb8e6f6ea50f494549902aa66fef2d7f8a76a6b22fdf381d917459a24ff8b89265ca4aa81517b1214c1dcacda862a927cff106c68e51b5018b55034b820414552bcf4c59b449aa528dff7c4184c80d9a12699ac1"}, 0xc0, 0x40004}], 0x3, 0xec3ee6ed3af5a4da) listen(r1, 0x0) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$SO_ATTACH_FILTER(r3, 0x1, 0x1a, &(0x7f00000001c0)={0x1, &(0x7f0000000280)=[{0x6, 0x0, 0x0, 0x3}]}, 0x8) bind$inet6(r3, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r3, 0x0, 0x0, 0x240540c3, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) sendto$inet6(r3, &(0x7f0000000480)="e461774ad21fa5245ff0a8e433d356ef3e342d59496ff9e77673cc58ba24598181d63c34be7b74a6fa15e725223218daf4b3b6bbde715e523b20e824", 0x3c, 0x44000, 0x0, 0x0) poll(&(0x7f0000000000)=[{r3}], 0x1, 0xef) close(r3) setsockopt$inet6_opts(r3, 0x29, 0x36, &(0x7f0000001ac0)=@fragment={0x2b, 0x0, 0x8, 0x0, 0x0, 0x8, 0x67}, 0x8) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 340.988521][T19049] batman_adv: Cannot find parent device [ 341.032976][T19049] batman_adv: batadv0: Adding interface: gretap3 [ 341.065736][T19049] batman_adv: batadv0: The MTU of interface gretap3 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 341.159736][T19049] batman_adv: batadv0: Not using interface gretap3 (retrying later): interface not active 06:52:42 executing program 4: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$RXRPC_EXCLUSIVE_CONNECTION(0xffffffffffffffff, 0x110, 0x3) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) getpeername(r1, &(0x7f0000000000)=@pppol2tpv3in6={0x18, 0x1, {0x0, 0xffffffffffffffff}}, &(0x7f0000000080)=0x80) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r3, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) accept4$nfc_llcp(r2, 0x0, 0x0, 0x80000) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e291ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:42 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xe03f0300}], 0x2, 0x0) [ 341.265485][T19062] batman_adv: Cannot find parent device [ 341.286000][T19062] batman_adv: batadv0: Adding interface: gretap30 [ 341.293749][T19062] batman_adv: batadv0: The MTU of interface gretap30 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:42 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) connect$nfc_llcp(r2, &(0x7f0000000000)={0x27, 0x1, 0x0, 0x4, 0x0, 0x20, "d1a7703bb3e4b96448a55197f91e78425cc64a8988d1c180060646483e474affd252bdfc50d53a2774c66f2d62e906f7abe7b9886fb4aa270304e198aca187", 0x2}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 341.372951][T19062] batman_adv: batadv0: Not using interface gretap30 (retrying later): interface not active 06:52:43 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:43 executing program 4: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$RXRPC_EXCLUSIVE_CONNECTION(0xffffffffffffffff, 0x110, 0x3) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) getpeername(r1, &(0x7f0000000000)=@pppol2tpv3in6={0x18, 0x1, {0x0, 0xffffffffffffffff}}, &(0x7f0000000080)=0x80) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r3, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) accept4$nfc_llcp(r2, 0x0, 0x0, 0x80000) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e291ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:43 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xeffdffff}], 0x2, 0x0) [ 341.557655][T19076] batman_adv: Cannot find parent device [ 341.577105][T19076] batman_adv: batadv0: Adding interface: gretap39 [ 341.603899][T19076] batman_adv: batadv0: The MTU of interface gretap39 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 341.734278][T19076] batman_adv: batadv0: Not using interface gretap39 (retrying later): interface not active 06:52:43 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:43 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x4, 0x0, 0x0, 0x0, 0x0, "e55a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6dfab89e04eb2e2914fa2eeedb9afb59d8f85d47cefe7e400", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:43 executing program 4: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$RXRPC_EXCLUSIVE_CONNECTION(0xffffffffffffffff, 0x110, 0x3) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) getpeername(r1, &(0x7f0000000000)=@pppol2tpv3in6={0x18, 0x1, {0x0, 0xffffffffffffffff}}, &(0x7f0000000080)=0x80) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r3, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) accept4$nfc_llcp(r2, 0x0, 0x0, 0x80000) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e291ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:43 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xf5ffffff}], 0x2, 0x0) [ 341.868560][T19094] batman_adv: Cannot find parent device [ 341.932629][T19094] batman_adv: batadv0: Adding interface: gretap33 [ 341.966628][T19094] batman_adv: batadv0: The MTU of interface gretap33 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:43 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r6 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r6, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:43 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xfffffdef}], 0x2, 0x0) 06:52:43 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x100, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191fe8adfa180f2d9b699c689e04eb2e27a355feecd16594a8cbf27b9afb59d8f0300000000000000002000", 0x22}, 0x60) 06:52:43 executing program 4: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$RXRPC_EXCLUSIVE_CONNECTION(0xffffffffffffffff, 0x110, 0x3) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) getpeername(r0, &(0x7f0000000000)=@pppol2tpv3in6={0x18, 0x1, {0x0, 0xffffffffffffffff}}, &(0x7f0000000080)=0x80) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) accept4$nfc_llcp(r1, 0x0, 0x0, 0x80000) [ 342.049638][T19094] batman_adv: batadv0: Not using interface gretap33 (retrying later): interface not active [ 342.201978][T19119] batman_adv: Cannot find parent device 06:52:43 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) bind$nfc_llcp(r0, &(0x7f00000001c0)={0x27, 0x0, 0x1, 0x2, 0x3, 0x80, "3aba098d269940f531219e9aba475abe38be06a4ed8c438f42ba40c26c07fae6be9dd9c4f006d70f92688127679e127e3531592ba7cc961f7c67d306e07057", 0x23}, 0x60) listen(r1, 0x0) bind$nfc_llcp(r1, &(0x7f0000000000)={0x27, 0x1, 0x1, 0x6, 0x40, 0x1f, "9bc2814330b11d8fc5a742b3dd42c9e488e20220c900fdea747f98ddab8596be2d4e2aca8231eac9f67ec589c5d0ffdfa6f8e3a4fbab8455b898529b17f444", 0x3f}, 0x60) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) r2 = syz_open_dev$vcsn(&(0x7f0000000100), 0x23, 0x500) sendmsg$nfc_llcp(r2, &(0x7f0000002580)={&(0x7f0000000240)={0x27, 0x0, 0x1, 0x2, 0x6, 0x7, "acc7d462f1b4a316fdacaf818ab2d2e43df7e7d380c6b66ebf8d2855f595ea37e1835c7b7406bdf6461ca5f3611553407a7c39812c79fc986bf664e3bd47e7", 0x1b}, 0x60, &(0x7f0000002500)=[{&(0x7f00000002c0)="d821f7117e8dd807c1fb8ae869c02e0caca93e839622ca09870b11a805a725b454c730dd213bf8b99aa3bf4d71f9baae50886104dbcd35d59c02c9ad46ddd09f2bc38ccb0d2c9f863d6f68e8998c9a17bb899441cc6153b3bca4a346ba17efb46e2d5283ecf40bb8a73f0908236ed03352f45fcb14e874d4015f9dc6069160d14fd1bf4f7270d9659c9bc7c5f64244f3d1a8d98d401867db33a644cea674d00299f117f3de0d344112ab03f287307a28649d3a8c59c1072fecb2148cf5c2585a1b34", 0xc2}, {&(0x7f00000003c0)="82d6662e341d38f94ff7e602fd057a22ccbf0b2c8875bee45d22308614952b9a6a46f9aaf714f5a91e260e3c74ca3a83e81f7835c73c7ddb9ca8827383ee2982d83c2205fc08541324b07bad4ca090ee2a126ec5ee49b5b3ebf118d6a328040d5bf3c9", 0x63}, {&(0x7f0000000440)="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0x1000}, {&(0x7f0000001440)="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0x1000}, {&(0x7f0000002440)="45dcdec0964168edd1eff5353fdc0b458d32a746c047c7c25f31cbee4c2cf993015c8364a3a5ed18c1644bed1d0f173c47b5b716a9ee6f485a71b385859dbf5fe18d94f35231104589bd4959991177aa337569d1f62d7589a56295b6a44cb5555723a86b6f6f33152f7c03eb9ae969f40b94c00b43b7d03cf673cc3a0fbcb1665df0599fdc16c551dec08c831b0f0c1335b45ba1646d18488a7a2d0c9c372806ac364819bd252b32", 0xa8}], 0x5, 0x0, 0x0, 0x40811}, 0x4000080) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) r3 = syz_open_procfs(0x0, &(0x7f0000000080)='attr\x00') connect$inet6(r3, &(0x7f00000000c0)={0xa, 0x4e23, 0x7, @mcast2, 0x1000}, 0x1c) [ 342.277393][T19119] batman_adv: batadv0: Adding interface: gretap31 [ 342.311346][T19119] batman_adv: batadv0: The MTU of interface gretap31 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 342.414418][T19119] batman_adv: batadv0: Not using interface gretap31 (retrying later): interface not active 06:52:44 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r0, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:44 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xfffffe00}], 0x2, 0x0) 06:52:44 executing program 4: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$RXRPC_EXCLUSIVE_CONNECTION(0xffffffffffffffff, 0x110, 0x3) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) getpeername(r0, &(0x7f0000000000)=@pppol2tpv3in6, &(0x7f0000000080)=0x80) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r1, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r1, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) [ 342.523558][T19133] batman_adv: Cannot find parent device [ 342.624737][T19133] batman_adv: batadv0: Adding interface: gretap40 [ 342.648977][T19133] batman_adv: batadv0: The MTU of interface gretap40 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 342.762203][T19133] batman_adv: batadv0: Not using interface gretap40 (retrying later): interface not active 06:52:44 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:44 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000000)={0x27, 0x1, 0x2, 0x2, 0x1, 0x3, "8ba2c47b9e93ffcc5e073e63c02e62497fd23fbe9d1cf17291e81463c5efded8ddf1ade0926d8f3a6ad732443cfe6dcf63c9e32bcb61d2497c5158fbe03e2c", 0x5}, 0x60) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r2 = perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x100}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendfile(r2, r2, &(0x7f00000000c0)=0x29, 0x3ff) ioctl$F2FS_IOC_DEFRAGMENT(r2, 0xc010f508, &(0x7f0000000080)={0x6, 0x1}) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:44 executing program 4: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$RXRPC_EXCLUSIVE_CONNECTION(0xffffffffffffffff, 0x110, 0x3) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) getpeername(r0, &(0x7f0000000000)=@pppol2tpv3in6, &(0x7f0000000080)=0x80) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r1, 0x40106436, &(0x7f0000000580)) 06:52:44 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xffffff7f}], 0x2, 0x0) 06:52:44 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r6 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r6, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 342.858835][T19166] batman_adv: Cannot find parent device [ 342.926051][T19166] batman_adv: batadv0: Adding interface: gretap32 [ 342.979309][T19166] batman_adv: batadv0: The MTU of interface gretap32 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:44 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) r2 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000000), 0x2000, 0x0) sendmsg$nfc_llcp(r2, &(0x7f00000004c0)={&(0x7f0000000040)={0x27, 0x0, 0x0, 0x3, 0x0, 0x2, "f681f26ba7ead0dcfad1f29e08b286776facc5db4b87bf39fea41629f87a26c06c66ad04e73fcc05287eec79a233ce1591c503e41e83a1fd6ab66eb92084b3", 0x12}, 0x60, &(0x7f0000000400)=[{&(0x7f00000000c0)="16daa25cb37aac1174b3c7057439380b1873449d1095eb193f9721a55e20be690da042b4e4f2fae7466d09a62a782f35f37774282835a26813e92a2c5b889415476e40b87bfbb8eed7bdad6b", 0x4c}, {&(0x7f00000001c0)="19bf62bfea3b2962747c9d", 0xb}, {&(0x7f0000000200)="84be91df1cbf157f75c326cc9618cfb42d4fe33b2a8cde2f7cee4ce23f3245f1850e64d73fd18ab3fdc0bbd6ae0ad10e65bbe0d1ca44d1e3200ac35cbcf30f76af9959a8141ef18f8f9d2c8e5ff37b704ccbd9ba5cc09b096a051f8d86ad9c0813dba881de4e09a414055fab7378987b423bd2e3c02750d5f213becc6c72f82073e3f02ced6f7e1728a8845debb01d2e970fa39da86a74a81c7e4998a9e45e5da1f8cb934d2c8dee4bc4e7816cb7c457972d3a901817e138c5d0522ec15a3309a0cac328dd136c18", 0xc8}, {&(0x7f0000000300)="1be874b54628c084a80f589b4ae2a28c05b9f88579afb2724785b20dc0b708f8", 0x20}, {&(0x7f0000000340)="9839befe31a245cf36b9bde957a745aed984a089d3db38f1c7c746de55f3ab12edc8f8507f503e0b3edd27879a0f62bacefda757892815d10deb264f5fcf6daa82a6b98667475aface95a8e3d70051144c0704fb64bf885fd54113ec5b67b0054727e1c316b17989cf1a642f5831aea2392b38a9262b618fbb3eb5da4aee16fb54a4d300031a7f835584e4100a5e18d710f014c2de980a710bd8e2b83008bc8f1554efcae1d887af39fad852acaa6df244e4776062cbf8511937ea88c7", 0xbd}], 0x5, &(0x7f0000000480)={0x30, 0x114, 0x3, "f9953595c47b3ea9636049b4b1ffc4ddbd844d8f8c2d65715d021af08495"}, 0x30, 0x84}, 0x14) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:44 executing program 4: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$RXRPC_EXCLUSIVE_CONNECTION(0xffffffffffffffff, 0x110, 0x3) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) getpeername(r0, &(0x7f0000000000)=@pppol2tpv3in6, &(0x7f0000000080)=0x80) pipe(&(0x7f0000000000)) 06:52:44 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xfffffff5}], 0x2, 0x0) [ 343.158223][T19166] batman_adv: batadv0: Not using interface gretap32 (retrying later): interface not active 06:52:44 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) sendmmsg$nfc_llcp(r1, &(0x7f0000001980)=[{&(0x7f0000000000)={0x27, 0x1, 0x1, 0x6, 0x1, 0x3, "d5025cb25f1eec1550710e86625d1f93f3ef30d70ece071808e5472cdd4b009d3ef9438e8e6249f99a050a3acfcdd6871376c94e96bb94aebcb012131dbbc6", 0x15}, 0x60, &(0x7f00000002c0)=[{&(0x7f00000001c0)="cce673a332708f0944dd8bfbee4a7e57677a1ce550b740bf372d01bd8a205cedd9b338d743eb09365345a0e6b869eae576abf594a8dcdb542be2a515edfbcc06c4ed4973f6f7783fc89704e00b9de96391b0511bbf8b935b833d09154efeac569d6021ca331c937332fef4e1083c13b9ec9e322c74d9509acfd1431afcff2586e440f247def3135be91985daf2d56194f93d8cf93804ae7e78feb3ffed6ecdce073765c6b373c37dd76f35b57c36f2cb9436939b2d2327da4981b9fd1f66a255c3dd81d47f5b8cee4097d27a06", 0xcd}, {&(0x7f0000000080)="99cf0b0a6c772f3dd2d3641388ff9e8194f99f25d0b3aafeb14b865be90692d3c4096c7213a6becd33b3a53d00438841519be6f9f4b8463ae1dcf97a140b8853c61c65c4e13eae6c30cc789a5da9197bffbe0345fa21c42be5878dd02b34a302a75f1b80323db99fdf361ca138cdb5f1e97210b41c08b11c67183e0dc5f242f4e88803faec7fc693a4f7f0368faed6149b3ad67c7d4e", 0x96}], 0x2, &(0x7f0000000300)={0x50, 0x6, 0x101, "49b6711858420953fae04d04cdaf7dca37e6e4287c87024bd68c147976af22cbce8d2d0d333cc52f48e41a450b59a058f2891ee66800c6040f3bf8"}, 0x50, 0x4004084}, {&(0x7f0000000380)={0x27, 0x1, 0x1, 0x3, 0x9, 0x1, "7ff65fa54541d2afa73917ee83f865dd1cc85fe65b5f3e554ce65a05895c049b2ccf1f78b7b5296f330211b0ad4c669bfffd3d2e19cabaa3ed41fae68f647d", 0xd}, 0x60, &(0x7f0000000540)=[{&(0x7f0000000400)="9a7fb2668e60a8dc0a04e2381b07b974e9d6cac63aae3d762df10745b383ed75f1b14ff57ec804072ed73490a4b0c0ee8137a751c00fdb5b2c366b7c880a71", 0x3f}, {&(0x7f0000000440)="810d053d8eb81f2633bd0e7eff121c121888372c056374a72753edc45df829c2bce4c5c3afc34325a7123b100b229cef46a392d966c02218c247ccf5a5381dd0cc3247abf55d755fe485e4a22471161402bc9295b2671bc050e4f6c4bb07ee0d364474cdf45e0a5f1eeb8cd0b5a2b00e45500cbc414925acf97e1e051774988fcd1f02bb360bef97aaf3bf4bad5a39055d51c66d14828e125a1edd16c4819bd73c7b2898d1bf6a4d9bdf9073f1ed00301750a1297881d2bc89a5b8fa3ac0bb014759fa1766e633e6fc861301b3a853227e50e8235a4801dab78d36cd5340d0", 0xdf}], 0x2, 0x0, 0x0, 0x40809}, {&(0x7f0000000580)={0x27, 0x0, 0x0, 0x5, 0x20, 0x3f, "fd1a48f8e9f3058ce34847bc8ade8b20e3a6e4e1f3ccfb7999618f72d6af36bf77602d592fa328493062e189977a626aba0f9789db70ed966eac7fa346e3e6", 0x3a}, 0x60, &(0x7f00000018c0)=[{&(0x7f0000000600)="bc3316a36576c1fc4e07c45ae9", 0xd}, {&(0x7f0000000640)="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", 0x1000}, {&(0x7f0000001640)="efa157ee4137c0d9fcc8ce3882023c82ad8d9e083354290132ade7f4d5ee80d0f9e20239f5260328c0d5b6b72834774301605a3d9d8f06e80ba34a3e9efdf756f13c9c5809e4b1c5c0d42146c24090f6f9ffc3430576a4d21929c8e62a3c7f6b7df9ab48da075ace71f2545131965e707bc11c3ac042e7c264052f1c3ed74013ee227210d2be1948879aab272bca4a22cca95bfddb461794c1d972ed920a96bd5f266956b708", 0xa6}, {&(0x7f0000001700)="abdef281dc865817ce40035d24fa223944e4e6eaaf3711c8f6a5fb6f4009e5b02f9a9995dc9f174646af8976d935cd74c9a61aca62f742a4b208cabd09d9aae372d7fe797d95d795b2d76ea0069d411f24e2afa5926c400cc0c6da4e23d57f26753c96e7455a33df356897a9457c7cb877bb3f0f8b3266ddace0d81df5dba87c47d0cbfc9c8a4dfcadeac2", 0x8b}, {&(0x7f00000017c0)="be939343ca74a68da10a94f504b6198eed55a426b1428dada02cbb5b20690c62dff3fbba219fce350ce9f3353c5e99d1aea9b63b13d99ffa6c8e0b4936c6e592195f93fb92fe045ff3d89a16f3e9a59c6c2772ec20c6703892a8f5a8f7289dd5bc595aa0760d3e567743b7b7f043", 0x6e}, {&(0x7f0000001840)="f6587180ac056309761eaabeb7a9a3cf3a39e644b230da57885aee81a808a52a69a3c66655e357839e234b4c1bd02756d118c466aee03eea1c9792fb7d155c084dd31ad510398f35ff6f6116ac6e465b5c4b1c3a9d9c4c754bd78e4c459ab55021830e985a5c167e0a0bf0bc7746e2b2cff3d9d7f04384d4588c", 0x7a}], 0x6, &(0x7f0000001940)={0x28, 0x100, 0x5, "dca78497b84debf2a0807a3f709eb7aafce582aa"}, 0x28, 0x8000}], 0x3, 0x1) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4(0xffffffffffffffff, &(0x7f0000001a40)=@in={0x2, 0x0, @dev}, &(0x7f0000001ac0)=0x80, 0x80000) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) accept4$nfc_llcp(r0, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) 06:52:44 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r0, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:44 executing program 4: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$RXRPC_EXCLUSIVE_CONNECTION(0xffffffffffffffff, 0x110, 0x3) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) getpeername(r0, &(0x7f0000000000)=@pppol2tpv3in6, &(0x7f0000000080)=0x80) 06:52:44 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r6 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r6, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 343.352637][T19185] batman_adv: Cannot find parent device [ 343.419051][T19185] batman_adv: batadv0: Adding interface: gretap41 [ 343.446860][T19185] batman_adv: batadv0: The MTU of interface gretap41 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 343.507697][T19185] batman_adv: batadv0: Not using interface gretap41 (retrying later): interface not active 06:52:45 executing program 0: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:45 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) accept4$nfc_llcp(r2, &(0x7f0000000000), &(0x7f0000000080)=0x60, 0x80000) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r3 = accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) sendmsg$nfc_llcp(r3, &(0x7f00000015c0)={&(0x7f00000000c0)={0x27, 0x1, 0x1, 0x5, 0x6, 0xc1, "c3e0b8842b915571db67c948d0d72c27fdb27b09db439c5ab924940b5dd1f47cf2e313b8c101010830bbf4fbed4c196e243c534fac4daa3cbd20ca0320a39a", 0x1b}, 0x60, &(0x7f00000004c0)=[{&(0x7f00000001c0)="7ac6", 0x2}, {&(0x7f0000000200)="3633f7f72e9479b6f16a4b5cb444dc89a280b4c102578412b7258e1d2fc50b4d1312af2c2fae4ded47d71b823c563b112f2dde4a0dea5cc3f4e5b5ef0c687b13ede3575ff54c82c33fd0", 0x4a}, {&(0x7f0000000280)}, {&(0x7f00000002c0)="1576a112997522a6868fb640e268c8aeb19d27bd0d451e17e65f6e1280bd4e5517f39311a624ddf24668c90f57aa7e5f86c8c07593fee75c947398610ce465df9a87c1826f6ec6a9223a4ea471c5edd52f5243ea02db0f068d4df32362192201c451b4be8a048abe31b3a2cddd38fd", 0x6f}, {&(0x7f0000000340)="e8f6d1176bfccf29225193cc4b665aa8b0fd720677de228a4c78654cb2926df8f506c3276464eb1bea400fb82fcf8abc7c0c7d4d4cf5c6bf8fce4a86482174ec2372dde422a04db3e43bf61bd76975203710207b7ccf2b2eadee50c53bc6dd8f52b310086af04bead76cd6e534ffa550233bb735cdcf71be33f1c4c727727cede971cd121a500f8b97e23c4d0acb4336fc535e13b29842381ddde69f7231b5f51c5771cbc9d77005794b", 0xaa}, {&(0x7f00000005c0)="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", 0x1000}, {&(0x7f0000000400)="815113137b5ccab365f8c43f406b7dd6368e46dfae06fb2904", 0x19}, {&(0x7f0000000440)="90a896f765e973aeabbd67e6729adde9e6d01ac35d1674bd6e0ba21f479103fb6d77d51b", 0x24}, {&(0x7f0000000480)="543bed40a95733bd24a24e185769c0b774496555593a022b3b6eceddac6fd62e4c326897ea8a9cfa36b77d8720a6c2e14d677fb8332920222f10e1", 0x3b}], 0x9, 0x0, 0x0, 0x11}, 0x10) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 343.697835][T19209] batman_adv: Cannot find parent device 06:52:45 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x10000000000}], 0x2, 0x0) 06:52:45 executing program 4: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) setsockopt$RXRPC_EXCLUSIVE_CONNECTION(0xffffffffffffffff, 0x110, 0x3) getpeername(r0, &(0x7f0000000000)=@pppol2tpv3in6, &(0x7f0000000080)=0x80) [ 343.778764][T19209] batman_adv: batadv0: Adding interface: gretap33 [ 343.804213][T19209] batman_adv: batadv0: The MTU of interface gretap33 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 06:52:45 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) bind$nfc_llcp(r1, &(0x7f0000000000)={0x27, 0x0, 0x2, 0x7, 0x89, 0xd9, "0c3e6405a5fd430b64b9c1eb288fb32d0d474b1c151e6cdba3e78542482ba5003c82d6d4ebb6a74783e3a036683bf34f153376c7d9af3f893d719c6b0a4663", 0x2e}, 0x60) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 343.905672][T19209] batman_adv: batadv0: Not using interface gretap33 (retrying later): interface not active 06:52:45 executing program 4: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) getpeername(r0, &(0x7f0000000000)=@pppol2tpv3in6, &(0x7f0000000080)=0x80) 06:52:45 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x7ffffffff000}], 0x2, 0x0) 06:52:45 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:45 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r0, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r3 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r3, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r6, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r7, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r4, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r4, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r8 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r8, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:45 executing program 1: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) connect$nfc_llcp(r0, &(0x7f0000000000)={0x27, 0x1, 0x0, 0x4, 0x6, 0x4, "22c89c283684d5f88eeec6475ac2ee825be8005e6e64bc2659f133199e0753b5a989e66b67191626e33e6c5b0726c67b39ee13d2d1784601d5d23dd51ed01e", 0x3e}, 0x60) bind$nfc_llcp(r1, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r1, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) [ 344.159367][T19228] batman_adv: Cannot find parent device 06:52:45 executing program 4: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) getpeername(r0, &(0x7f0000000000)=@pppol2tpv3in6, &(0x7f0000000080)=0x80) [ 344.231681][T19228] batman_adv: batadv0: Adding interface: gretap42 06:52:45 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x4000000000000}], 0x2, 0x0) [ 344.266167][T19228] batman_adv: batadv0: The MTU of interface gretap42 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 344.424155][T19228] batman_adv: batadv0: Not using interface gretap42 (retrying later): interface not active 06:52:46 executing program 0: getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) sendmmsg(r0, &(0x7f0000000c80), 0x400000000000345, 0x0) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) 06:52:46 executing program 1: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) 06:52:46 executing program 4: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) getpeername(r0, &(0x7f0000000000)=@pppol2tpv3in6, &(0x7f0000000080)=0x80) 06:52:46 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x40030000000000}], 0x2, 0x0) 06:52:46 executing program 2: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) getpid() r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r6, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r3, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r1, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r7 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r7, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 344.591133][T19244] batman_adv: Cannot find parent device [ 344.654864][T19244] batman_adv: batadv0: Adding interface: gretap34 [ 344.661724][T19244] batman_adv: batadv0: The MTU of interface gretap34 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 344.715750][T19263] ================================================================== [ 344.724306][T19263] BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x254/0x480 [ 344.731789][T19263] Read of size 34 at addr 0000000000000000 by task syz-executor.4/19263 [ 344.740128][T19263] [ 344.742498][T19263] CPU: 0 PID: 19263 Comm: syz-executor.4 Not tainted 5.13.0-rc3-syzkaller #0 [ 344.751436][T19263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 344.761507][T19263] Call Trace: [ 344.764806][T19263] dump_stack+0x202/0x31e [ 344.769256][T19263] ? show_regs_print_info+0x12/0x12 [ 344.774476][T19263] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 344.780213][T19263] ? _raw_spin_lock_irqsave+0xbf/0x100 [ 344.785697][T19263] ? lockdep_hardirqs_on_prepare+0x750/0x750 [ 344.791701][T19263] ? do_raw_spin_lock+0x151/0x8e0 [ 344.796771][T19263] kasan_report+0x152/0x200 [ 344.801359][T19263] ? lock_sock_nested+0x40/0x110 [ 344.806335][T19263] ? llcp_sock_getname+0x254/0x480 [ 344.811470][T19263] kasan_check_range+0x2b5/0x2f0 [ 344.816443][T19263] ? llcp_sock_getname+0x254/0x480 [ 344.821609][T19263] memcpy+0x25/0x60 [ 344.825435][T19263] llcp_sock_getname+0x254/0x480 [ 344.830393][T19263] __sys_getpeername+0x1c7/0x2c0 [ 344.835436][T19263] ? __ia32_sys_getsockname+0x80/0x80 [ 344.840833][T19263] ? vtime_user_exit+0x2b2/0x3e0 [ 344.845797][T19263] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 344.851796][T19263] ? lockdep_hardirqs_on+0x8d/0x130 [ 344.857011][T19263] __x64_sys_getpeername+0x77/0x90 [ 344.862183][T19263] do_syscall_64+0x3f/0xb0 [ 344.866789][T19263] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 344.872702][T19263] RIP: 0033:0x4665d9 [ 344.876607][T19263] 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 bc ff ff ff f7 d8 64 89 01 48 [ 344.896353][T19263] RSP: 002b:00007f04e428a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 344.904790][T19263] RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 06:52:46 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xf0ff7f00000000}], 0x2, 0x0) [ 344.912996][T19263] RDX: 0000000020000080 RSI: 0000000020000000 RDI: 0000000000000005 [ 344.921087][T19263] RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 [ 344.929248][T19263] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 [ 344.937247][T19263] R13: 00007ffea546516f R14: 00007f04e428a300 R15: 0000000000022000 [ 344.945255][T19263] ================================================================== [ 344.953324][T19263] Disabling lock debugging due to kernel taint 06:52:46 executing program 1: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ef5a9db7ae822a99aa0c9882d5e2eea191ab2bdfa180f2d9b699c6deab89e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x22}, 0x60) listen(r0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) ioctl$BTRFS_IOC_SCRUB(0xffffffffffffffff, 0xc400941b, 0x0) r1 = accept4$nfc_llcp(0xffffffffffffffff, 0x0, 0x0, 0x0) sendmmsg$nfc_llcp(r1, &(0x7f00000072c0)=[{&(0x7f0000000040)={0x27, 0x0, 0x2, 0x3, 0x5, 0x6, "b3467944ec3d71dd2956a69db271a06dae20046977575ad6ca72e5455c7d43d134eb420c9551c09378f59723606893dedeb4eede59a6930f20af5c95109007", 0x9}, 0x60, &(0x7f0000000500)=[{&(0x7f00000005c0)="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{&(0x7f0000005c40)="1bf7577750582ab193da7dd65f1f6aaa157ee630eccd1b", 0x17}], 0x5, 0x0, 0x0, 0x4000}, {&(0x7f0000005d00)={0x27, 0x1, 0x0, 0xb4b49271333949c5, 0x0, 0xff, "e5aadfb6ba81fb8a3900305016e72c35848131d955a988a261747a3172a257019eac6d07b149e94357db41c9df51c9085a655148fd510fb4ba02484e012f42", 0x1b}, 0x60, &(0x7f0000006200)=[{&(0x7f0000005d80)="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", 0xff}, {&(0x7f0000005e80)="07b3ceb5bf3578144ef7df18218c7fd670cc4da83ebe969ccfa40d89f0c6c7894e313491831875db836a092e718eaa681f99a8ad36d6d244f14be26e682a10a2809449092f6949e535672ea873d642ba983682a3c2c4597ab1931c3a8148a649dcf521a698a1073c1dec2c06df47b9f89af0bf73c194f0aa7dbae1fa049f25f48d111d6d02e20a76cc4dfa6e892767c5f3ec2c78b7ad48ebb6f35e5fa8383d0928bce5e97aac82e63389033ea543b29432116721d34386de0dfaf7", 0xbb}, {&(0x7f0000005f40)="3e9257bb1b91bdd9d03b14a743a5d25695fa9868495cc398a84f2cdf15b6d57fad29a02520b060", 0x27}, {&(0x7f0000005f80)="35417f3abd04b3b0dea062ec321ca088a1d970f384118fc193b10af4bf17a3ebffaa11e028c088c99c0a2ab3609eeb33964982181952dd95be9d01d1297097eb4658476efd6bf73a2ba632d33df12027256cae6009b2588abae9a20213871fcf9500ff9d71b07811d2c3a769de762f0858cb9510a83b9f6d052302b7c307bd9b99e44859abdf9c23ecb55601367052790e1aba52b3d58c826691058dd896115743285d704dc5b283645da79bc56cb91031248a492d3bec20abe5acef1cec23026112f844b0040ffde9", 0xc9}, {&(0x7f0000006080)="d999eb09f9ce87572193ab19f49228b9304a1da1938c527d796f71ee8d8e3edafe3cd15818bb678daf81d6e490704625d810679b601dc2370497342eb0", 0x3d}, {&(0x7f00000060c0)="fac8d1340cd1c0e9a135f8642d5451fa6507fef72b86177edf36180615311b8ca1b209b2e869f0fcdac6d4bad96999734495d373d1fbc6d614ae1885de0edeeb41dc27f23b9448", 0x47}, {&(0x7f0000006140)="fde4d40f1ba7b6921f54ec0a5d79ed97da51243e285b1524011992c1a5e8af", 0x14}, {&(0x7f0000006180)="c4a079669e568b7dff37e4b69c2711103953cb41765aa48d3fa66e381f7368eb542146da1aab4bd5e418482ce05e3eac1b0e3f3c64aada02a22697c59b5e683218ad67d6050f51ee7860cdfe1f70f585562e886fb37567d4967e4c798d564debf30b935bdfe0d509f626d4669fdb8c450ab305e94d20f49b5b7586561d9f63ff", 0x80}], 0x8, &(0x7f0000006280)={0x1010, 0x10a, 0x5, "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0x1010, 0x4000841}], 0x4, 0x8000) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x585400, 0x0) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r2, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r2, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_AGP_BIND(r3, 0x40106436, &(0x7f0000000580)) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000140)={0x0, 0x6, 0xb8d8}) bind$nfc_llcp(r3, &(0x7f0000000140)={0x27, 0x0, 0x1, 0x5, 0x0, 0x0, "ef5a9db7ae82ff99aa0c9882d5e2eea191ab2bdfa180f2d9b699c689e04eb2e27a355feeed16594a8cbf27b9afb59d8f85d47cefbb6d00", 0x2000000027}, 0x60) [ 345.065823][T19244] batman_adv: batadv0: Not using interface gretap34 (retrying later): interface not active [ 345.077092][T19263] Kernel panic - not syncing: panic_on_warn set ... [ 345.083704][T19263] CPU: 0 PID: 19263 Comm: syz-executor.4 Tainted: G B 5.13.0-rc3-syzkaller #0 [ 345.093983][T19263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 345.104172][T19263] Call Trace: [ 345.105864][T19272] batman_adv: Cannot find parent device [ 345.107451][T19263] dump_stack+0x202/0x31e [ 345.117294][T19263] ? show_regs_print_info+0x12/0x12 [ 345.121491][T19272] batman_adv: batadv0: Adding interface: gretap43 [ 345.122609][T19263] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 345.122634][T19263] ? preempt_schedule+0x14a/0x170 [ 345.122651][T19263] ? schedule_preempt_disabled+0x20/0x20 [ 345.122667][T19263] panic+0x2e1/0x850 06:52:46 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xf0ffffff7f0000}], 0x2, 0x0) [ 345.133631][T19272] batman_adv: batadv0: The MTU of interface gretap43 is too small (1476) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 345.134952][T19263] ? trace_hardirqs_on+0x30/0x80 [ 345.141270][T19272] batman_adv: batadv0: Not using interface gretap43 (retrying later): interface not active [ 345.145632][T19263] ? nmi_panic+0x90/0x90 [ 345.145651][T19263] ? _raw_spin_unlock_irqrestore+0x110/0x120 [ 345.145672][T19263] ? lockdep_hardirqs_on_prepare+0x750/0x750 [ 345.145690][T19263] ? do_raw_spin_lock+0x151/0x8e0 [ 345.145704][T19263] kasan_report+0x1ff/0x200 06:52:46 executing program 3: perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x803, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xf7ffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0xc858, 0x8, 0xa21, 0x890, 0x8, 0x3, 0x7}, 0x1c) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r1, 0x8933, &(0x7f0000000640)={'batadv_slave_1\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @multicast}, 0x14) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000900)={'syztnl2\x00', &(0x7f0000000840)={'tunl0\x00', 0x0, 0x8, 0x7800, 0x1, 0x1, {{0x26, 0x4, 0x2, 0x3, 0x98, 0x65, 0x0, 0x4, 0x4, 0x0, @local, @private=0xa010102, {[@timestamp={0x44, 0xc, 0x21, 0x0, 0x3, [0x1, 0x3]}, @timestamp={0x44, 0x20, 0x2f, 0x0, 0x5, [0xad6, 0x4, 0x5, 0xfffffff8, 0x80000000, 0x4, 0x100]}, @timestamp_prespec={0x44, 0x44, 0xe8, 0x3, 0xf, [{@multicast2, 0xffffffff}, {@loopback, 0x3f}, {@empty, 0x7}, {@dev={0xac, 0x14, 0x14, 0x2e}, 0x7}, {@rand_addr=0x64010102, 0x6}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xff}, {@empty, 0x6}, {@multicast1, 0x6}]}, @rr={0x7, 0xb, 0x52, [@empty, @multicast2]}, @noop, @lsrr={0x83, 0x7, 0x66, [@initdev={0xac, 0x1e, 0x1, 0x0}]}]}}}}}) r4 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000540)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r8, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r5, @ANYBLOB], 0x44}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000ac0)={&(0x7f0000000200), 0xc, &(0x7f0000000a80)={&(0x7f0000000940)=@RTM_DELMDB={0x138, 0x55, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x3, {@ip4=@multicast2, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x1, 0x4, {@ip4=@broadcast, 0x800}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x0, 0x2, 0x2, {@ip4=@dev={0xac, 0x14, 0x14, 0x17}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x0, 0x0, 0x3, {@in6_addr=@dev={0xfe, 0x80, '\x00', 0xd}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x0, 0x2, {@in6_addr=@ipv4={'\x00', '\xff\xff', @multicast2}, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {0x0, 0x1, 0x2, 0x4, {@in6_addr=@local, 0x8edd}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r2, 0x1, 0x3, 0x3, {@ip4=@remote, 0x18b67}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r3, 0x1, 0x0, 0x0, {@in6_addr=@private1={0xfc, 0x1, '\x00', 0x1}}}}, @MDBA_SET_ENTRY={0x20, 0x1, {r5, 0x1, 0x0, 0x0, {@ip4=@initdev={0xac, 0x1e, 0x1, 0x0}, 0x86dd}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x20000000}, 0x44051) r9 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000100), 0x200000, 0x0) setsockopt$packet_tx_ring(r9, 0x107, 0xd, &(0x7f00000001c0)=@req={0x8, 0x6, 0x4, 0x2}, 0x10) [ 345.216166][T19263] ? lock_sock_nested+0x40/0x110 [ 345.221114][T19263] ? llcp_sock_getname+0x254/0x480 [ 345.226232][T19263] kasan_check_range+0x2b5/0x2f0 [ 345.231282][T19263] ? llcp_sock_getname+0x254/0x480 [ 345.236392][T19263] memcpy+0x25/0x60 [ 345.240213][T19263] llcp_sock_getname+0x254/0x480 [ 345.245160][T19263] __sys_getpeername+0x1c7/0x2c0 [ 345.250109][T19263] ? __ia32_sys_getsockname+0x80/0x80 [ 345.255488][T19263] ? vtime_user_exit+0x2b2/0x3e0 [ 345.260436][T19263] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 345.266516][T19263] ? lockdep_hardirqs_on+0x8d/0x130 [ 345.271727][T19263] __x64_sys_getpeername+0x77/0x90 [ 345.276848][T19263] do_syscall_64+0x3f/0xb0 [ 345.281275][T19263] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 345.287260][T19263] RIP: 0033:0x4665d9 [ 345.291157][T19263] 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 bc ff ff ff f7 d8 64 89 01 48 06:52:46 executing program 5: r0 = syz_io_uring_setup(0x5504, &(0x7f00000018c0), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000cdb000/0x1000)=nil, &(0x7f0000001880)=0x0, &(0x7f0000000280)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_RECV=@use_registered_buffer={0x1b, 0x0, 0x0, r4}, 0x0) io_uring_enter(r0, 0x4510, 0x0, 0x0, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg$unix(r3, &(0x7f0000003000)=[{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0xfeffff00000000}], 0x2, 0x0) [ 345.310767][T19263] RSP: 002b:00007f04e428a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 345.319276][T19263] RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 [ 345.327252][T19263] RDX: 0000000020000080 RSI: 0000000020000000 RDI: 0000000000000005 [ 345.335232][T19263] RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 [ 345.343209][T19263] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 [ 345.344518][T19300] batman_adv: Cannot find parent device [ 345.351182][T19263] R13: 00007ffea546516f R14: 00007f04e428a300 R15: 0000000000022000 [ 345.352282][T19263] Kernel Offset: disabled [ 345.371216][T19263] Rebooting in 86400 seconds..