TY_KEY(r1, 0x110, 0x1, 0x0, 0x0) pread64(r1, &(0x7f0000000140)=""/64, 0x40, 0x406) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f00000000c0)) syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x4) [ 308.434942][ T8196] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:23:57 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcbf, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 308.467786][ T8197] batman_adv: Cannot find parent device [ 308.489018][ T8197] batman_adv: batadv0: Adding interface: ip6gretap228 04:23:57 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7a8, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 308.499000][ T8197] batman_adv: batadv0: The MTU of interface ip6gretap228 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 308.532415][ T8197] batman_adv: batadv0: Not using interface ip6gretap228 (retrying later): interface not active [ 308.552098][ T8203] batman_adv: Cannot find parent device [ 308.561745][ T8203] batman_adv: batadv0: Adding interface: ip6gretap199 [ 308.571956][ T8203] batman_adv: batadv0: The MTU of interface ip6gretap199 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 308.602937][ T8203] batman_adv: batadv0: Not using interface ip6gretap199 (retrying later): interface not active [ 308.633561][ T8201] batman_adv: Cannot find parent device 04:23:57 executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xa, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x4006, 0x0, 0x0, 0x7ffefff9}]}) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000080)) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r1, 0x0, 0x0, 0x0) r2 = signalfd4(r0, &(0x7f0000000000)={[0x8, 0xb0]}, 0x8, 0x0) r3 = openat$apparmor_thread_current(0xffffff9c, &(0x7f00000002c0), 0x2, 0x0) ioctl$vim2m_VIDIOC_QUERYBUF(r1, 0xc04c5609, &(0x7f0000000340)={0x4, 0x3, 0x4, 0x8, 0x8000, {0x77359400}, {0x2, 0x8, 0xd9, 0x2, 0xf8, 0x4, "2d0e70d7"}, 0x4, 0x3, @offset=0xa0, 0x8000, 0x0, r2}) copy_file_range(r3, &(0x7f0000000300)=0x7851cfa2, r4, &(0x7f00000003c0)=0x1000, 0x8b6e, 0x0) sendmsg$NFT_BATCH(r2, &(0x7f0000000280)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000200)={&(0x7f0000000140)={{0x14}, [@NFT_MSG_DELSETELEM={0x5c, 0xe, 0xa, 0x5, 0x0, 0x0, {0xaeb91154789d80f2, 0x0, 0x4}, [@NFTA_SET_ELEM_LIST_ELEMENTS={0x28, 0x3, 0x0, 0x1, [{0x24, 0x0, 0x0, 0x1, [@NFTA_SET_ELEM_FLAGS={0x8}, @NFTA_SET_ELEM_EXPIRATION={0xc, 0x5, 0x1, 0x0, 0x2}, @NFTA_SET_ELEM_TIMEOUT={0xc, 0x4, 0x1, 0x0, 0x10000}]}]}, @NFTA_SET_ELEM_LIST_TABLE={0x9, 0x1, 'syz1\x00'}, @NFTA_SET_ELEM_LIST_SET_ID={0x8}, @NFTA_SET_ELEM_LIST_SET={0x9, 0x2, 'syz0\x00'}]}], {0x14}}, 0x84}, 0x1, 0x0, 0x0, 0x4}, 0x8000) [ 308.640886][ T8201] batman_adv: batadv0: Adding interface: ip6gretap173 [ 308.667357][ T8201] batman_adv: batadv0: The MTU of interface ip6gretap173 is too small (1434) 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. [ 308.748238][ T8201] batman_adv: batadv0: Not using interface ip6gretap173 (retrying later): interface not active 04:23:57 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d85b, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:23:57 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7a9, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:23:57 executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000100)={0x0}) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(0xffffffffffffffff, 0xc0189374, &(0x7f0000000440)={{0x1, 0x1, 0x18, r0, {0x9}}, './file0\x00'}) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r2, 0xc0502100, &(0x7f0000000480)) ioctl$SECCOMP_IOCTL_NOTIF_ADDFD(r0, 0x40182103, &(0x7f0000000180)={r1, 0x2, r0, 0x0, 0x80000}) r3 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='net/psched\x00') pread64(r3, 0x0, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r4) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r6, &(0x7f0000000400)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f00000002c0)={0x18, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}]}, 0x18}}, 0x0) sendmsg$NBD_CMD_STATUS(r6, &(0x7f0000000380)={&(0x7f0000000280), 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x5c, 0x0, 0x300, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xe57}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1970f4a4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x49}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}]}, 0x5c}, 0x1, 0x0, 0x0, 0x4004}, 0x800) r7 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') pread64(r7, &(0x7f0000000080)=""/68, 0x44, 0x6) getsockopt$netrom_NETROM_N2(r7, 0x103, 0x3, &(0x7f00000001c0)=0x1000, &(0x7f0000000200)=0x4) ioctl$MON_IOCX_MFETCH(r7, 0xc00c9207, &(0x7f0000000080)={&(0x7f0000000000)=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], 0x7, 0x1}) [ 308.817679][ T8212] batman_adv: Cannot find parent device [ 308.832689][ T8212] batman_adv: batadv0: Adding interface: ip6gretap229 [ 308.842219][ T8212] batman_adv: batadv0: The MTU of interface ip6gretap229 is too small (1434) 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. [ 308.882679][ T8212] batman_adv: batadv0: Not using interface ip6gretap229 (retrying later): interface not active [ 308.902596][ T8211] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 308.918990][ T8214] batman_adv: Cannot find parent device [ 308.926171][ T8214] batman_adv: batadv0: Adding interface: ip6gretap200 [ 308.933397][ T8214] batman_adv: batadv0: The MTU of interface ip6gretap200 is too small (1434) 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. [ 308.966192][ T8214] batman_adv: batadv0: Not using interface ip6gretap200 (retrying later): interface not active 04:23:57 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 308.994016][ T8216] nbd: must specify a size in bytes for the device 04:23:57 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d85c, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 308.998851][ T8219] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 309.041531][ T8221] batman_adv: Cannot find parent device [ 309.043666][ T8222] nbd: must specify a size in bytes for the device 04:23:57 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7aa, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 309.053094][ T8221] batman_adv: batadv0: Adding interface: ip6gretap174 04:23:57 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') pread64(r0, &(0x7f0000000080)=""/68, 0x44, 0x6) getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000080)={0x4, 0x23d, 0x8008, 0xdf, 0x2, 0xffff, 0x6, 0x96}, &(0x7f00000000c0)=0x20) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r1 = gettid() ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000100)) tkill(r1, 0x7) r2 = syz_open_procfs(r1, &(0x7f0000000000)='statm\x00') pread64(r2, 0x0, 0x0, 0x0) [ 309.071573][ T8221] batman_adv: batadv0: The MTU of interface ip6gretap174 is too small (1434) 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. [ 309.107443][ T8221] batman_adv: batadv0: Not using interface ip6gretap174 (retrying later): interface not active [ 309.130773][ T8224] batman_adv: Cannot find parent device [ 309.144808][ T8224] batman_adv: batadv0: Adding interface: ip6gretap230 [ 309.153985][ T8224] batman_adv: batadv0: The MTU of interface ip6gretap230 is too small (1434) 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. [ 309.195913][ T8224] batman_adv: batadv0: Not using interface ip6gretap230 (retrying later): interface not active [ 309.218407][ T8226] batman_adv: Cannot find parent device [ 309.227871][ T8226] batman_adv: batadv0: Adding interface: ip6gretap201 [ 309.237020][ T8226] batman_adv: batadv0: The MTU of interface ip6gretap201 is too small (1434) 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. 04:23:57 executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') r2 = syz_mount_image$jffs2(&(0x7f0000000000), &(0x7f0000000080)='./file0\x00', 0x2, 0x5, &(0x7f0000000200)=[{&(0x7f00000000c0)="cf704a", 0x3}, {&(0x7f0000000100)="bfcccff5837b5fae42c983c2a1451f4197d3802321c03e779ac2b5d039b154661d9f1377d096b40e1a240908d46711ce93f5f78bfd8928bf240cf93698062ad2e3d5935c2efdc1b530f4a69af9170942027413b9e17df1f67c9f85c4f297e1dccec5c637d332192f89c0b8a5f3c4e90012fe848f037116b0eb21696a8e9a42ffe2593828b7aaf83c865452a55e21cd967c3cbc7595cb7df45a8b66c9821c53ea5a3eadc02244c3225a76882d15d02c275b46cd573d25a4516cfa692d807acbba970721c53c32cebf50", 0xc9, 0x9}, {&(0x7f0000000280)="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0x1000, 0x3}, {&(0x7f0000001280)="013f2643b2018fa87c9584bc06797f78e4eccfaf9b3c16b4fcdb1117f1a27029b55940fc55a2eef921d0f44d3743e26327a6b53d886b18739356b686b4cedce05ba151ab0778c3d37dba7f6f2092645df5fc855574ddfb0b951dadf5ca06e24ae83f8492dad8596f228f700d4876b406702e74cda5cefb36cbe3719f9bfea02b7457a50e6b94cefc04db00ef12015a", 0x8f, 0x1}, {&(0x7f0000001340)="b4630e54fba186b665f7e3eb029f5d35e4970762ae309a60a454e7e9be1fd79bde00ade2081c1cb6cb5ce9400fa5c0875bbaa17815be7060ba71808a4b1a7b53157e13b81e070d3bb0f86f93370ad717cf9502b6b167d90e21c108e8254354732b93811673ea8242024cc7be4599660cde1d6da8ff9447b730c22573f43e8a4acd2b899c9ca952eefd7b3f12cf13b204831297d6b414bec498f917848f008e90d42f12837a78082e0ff5bcb683", 0xad, 0x723f}], 0x20000, &(0x7f0000001400)={[{}, {@compr_lzo}, {@rp_size={'rp_size', 0x3d, 0x1}}, {@compr_lzo}, {@compr_zlib}, {@compr_zlib}, {@compr_zlib}, {}, {@compr_zlib}, {@rp_size={'rp_size', 0x3d, 0xf4}}], [{@fsname={'fsname', 0x3d, 'net/psched\x00'}}, {@seclabel}]}) syz_mount_image$exfat(&(0x7f0000001500), &(0x7f0000001540)='./file0\x00', 0x16, 0x1, &(0x7f0000001600)=[{&(0x7f0000001580)="a18b8189ac21ed7808f088eb7a592de8fa60c78f9e5a60ea70751cab8f19df8f7f753cb2f5392b4dbb63a96f173ba955a319cef1277105a549cd1acc9460792d801c4bc43e7dff4cd7729220ee8b940431735a7dcf1d5fa59c9fb9046581b5", 0x5f, 0xffffffc1}], 0x8, &(0x7f0000001640)={[{@utf8}, {@dmask={'dmask', 0x3d, 0x10000}}, {@errors_remount}], [{@appraise}, {@fsmagic={'fsmagic', 0x3d, 0x3}}, {@obj_type={'obj_type', 0x3d, '['}}, {@audit}]}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r1, 0xc018937e, &(0x7f00000014c0)={{0x1, 0x1, 0x18, r2, @in_args={0x1}}, './file0\x00'}) pread64(r3, 0x0, 0x0, 0x3) getsockopt$inet6_IPV6_IPSEC_POLICY(r3, 0x29, 0x22, &(0x7f0000001980)={{{@in=@multicast1, @in6=@local, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@initdev}, 0x0, @in=@loopback}}, &(0x7f0000001a80)=0xe4) mount$9p_rdma(&(0x7f00000018c0), &(0x7f0000001900)='./file0\x00', &(0x7f0000001940), 0x20048, &(0x7f0000001ac0)={'trans=rdma,', {'port', 0x3d, 0x4e20}, 0x2c, {[{@sq={'sq', 0x3d, 0x7}}, {@common=@aname={'aname', 0x3d, 'net/psched\x00'}}], [{@seclabel}, {@fscontext={'fscontext', 0x3d, 'unconfined_u'}}, {@smackfsdef={'smackfsdef', 0x3d, ')-$'}}, {@fowner_lt={'fowner<', r4}}]}}) preadv(r2, &(0x7f0000001880)=[{&(0x7f00000016c0)=""/87, 0x57}, {&(0x7f0000001740)=""/194, 0xc2}, {&(0x7f0000001840)=""/13, 0xd}], 0x3, 0x65b, 0x7) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000001b80)={{0x1, 0x1, 0x18, r0, {0x4}}, './file0\x00'}) ioctl$sock_SIOCDELRT(r5, 0x890c, &(0x7f0000001c00)={0x0, @hci={0x1f, 0x3, 0x2}, @nl=@kern={0x10, 0x0, 0x0, 0x80000000}, @ethernet={0x6, @local}, 0x9, 0x0, 0x0, 0x0, 0xc47, &(0x7f0000001bc0)='rose0\x00', 0x400, 0x0, 0x200}) [ 309.273902][ T8226] batman_adv: batadv0: Not using interface ip6gretap201 (retrying later): interface not active [ 309.296121][ T8229] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 309.311378][ T8234] loop2: detected capacity change from 0 to 114 04:23:57 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d85d, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 309.334604][ T8235] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:23:57 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc1, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 309.363044][ T8237] batman_adv: Cannot find parent device [ 309.371680][ T8237] batman_adv: batadv0: Adding interface: ip6gretap231 04:23:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7ab, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 309.380089][ T8237] batman_adv: batadv0: The MTU of interface ip6gretap231 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 309.414547][ T8237] batman_adv: batadv0: Not using interface ip6gretap231 (retrying later): interface not active [ 309.434658][ T8239] batman_adv: Cannot find parent device [ 309.443662][ T8239] batman_adv: batadv0: Adding interface: ip6gretap175 [ 309.452925][ T8239] batman_adv: batadv0: The MTU of interface ip6gretap175 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 309.455118][ T8243] ======================================================= [ 309.455118][ T8243] WARNING: The mand mount option has been deprecated and [ 309.455118][ T8243] and is ignored by this kernel. Remove the mand [ 309.455118][ T8243] option from the mount to silence this warning. [ 309.455118][ T8243] ======================================================= [ 309.488345][ T8239] batman_adv: batadv0: Not using interface ip6gretap175 (retrying later): interface not active [ 309.494089][ T8241] batman_adv: Cannot find parent device 04:23:58 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d85e, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 309.564872][ T8241] batman_adv: batadv0: Adding interface: ip6gretap202 [ 309.580550][ T8241] batman_adv: batadv0: The MTU of interface ip6gretap202 is too small (1434) 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. [ 309.612913][ T8241] batman_adv: batadv0: Not using interface ip6gretap202 (retrying later): interface not active [ 309.620222][ T8234] loop2: detected capacity change from 0 to 264192 [ 309.641952][ T8245] batman_adv: Cannot find parent device [ 309.655102][ T8234] exfat: Deprecated parameter 'utf8' 04:23:58 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc2, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 309.658872][ T8245] batman_adv: batadv0: Adding interface: ip6gretap232 [ 309.670584][ T8234] exfat: Unknown parameter 'appraise' [ 309.677082][ T8245] batman_adv: batadv0: The MTU of interface ip6gretap232 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 309.721229][ T8245] batman_adv: batadv0: Not using interface ip6gretap232 (retrying later): interface not active [ 309.742479][ T8248] batman_adv: Cannot find parent device [ 309.755792][ T8248] batman_adv: batadv0: Adding interface: ip6gretap176 [ 309.766254][ T8248] batman_adv: batadv0: The MTU of interface ip6gretap176 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 309.809106][ T8248] batman_adv: batadv0: Not using interface ip6gretap176 (retrying later): interface not active 04:23:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7ac, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:23:58 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d85f, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 309.860631][ T8253] batman_adv: Cannot find parent device [ 309.871112][ T8253] batman_adv: batadv0: Adding interface: ip6gretap203 [ 309.880688][ T8253] batman_adv: batadv0: The MTU of interface ip6gretap203 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 309.912951][ T8253] batman_adv: batadv0: Not using interface ip6gretap203 (retrying later): interface not active [ 309.930389][ T8255] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 309.957928][ T8252] batman_adv: Cannot find parent device [ 309.968260][ T8252] batman_adv: batadv0: Adding interface: ip6gretap233 [ 309.979632][ T8252] batman_adv: batadv0: The MTU of interface ip6gretap233 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 310.017215][ T8252] batman_adv: batadv0: Not using interface ip6gretap233 (retrying later): interface not active 04:23:58 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc3, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 310.033998][ T8260] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:23:58 executing program 2: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000440)={&(0x7f0000000000)=@updpolicy={0xb8, 0x15, 0x1, 0x0, 0x0, {{@in=@private, @in=@private, 0x0, 0x0, 0x0, 0x0, 0x2}}}, 0xb8}}, 0x0) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r1, 0x0, 0x0, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') pread64(r2, &(0x7f0000000080)=""/68, 0x44, 0x6) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r2, 0xc0502100, &(0x7f0000000080)={0x0}) r4 = socket$rxrpc(0x21, 0x2, 0x2) sendmmsg$inet(r4, &(0x7f0000001c80)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0) setsockopt$RXRPC_SECURITY_KEY(r4, 0x110, 0x1, 0x0, 0x0) sendfile(r4, r2, &(0x7f0000000100)=0x8, 0x4) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r2, 0xc0182101, &(0x7f0000000000)={r3, 0x0, 0x8}) 04:23:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7ad, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 310.077960][ T8263] batman_adv: Cannot find parent device 04:23:58 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d860, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 310.088181][ T8263] batman_adv: batadv0: Adding interface: ip6gretap177 [ 310.097143][ T8263] batman_adv: batadv0: The MTU of interface ip6gretap177 is too small (1434) 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. [ 310.133445][ T8263] batman_adv: batadv0: Not using interface ip6gretap177 (retrying later): interface not active [ 310.152207][ T8268] batman_adv: Cannot find parent device [ 310.159370][ T8268] batman_adv: batadv0: Adding interface: ip6gretap204 [ 310.166552][ T8268] batman_adv: batadv0: The MTU of interface ip6gretap204 is too small (1434) 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. [ 310.201007][ T8268] batman_adv: batadv0: Not using interface ip6gretap204 (retrying later): interface not active [ 310.227077][ T8269] batman_adv: Cannot find parent device 04:23:58 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc4, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:23:58 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d861, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:23:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7ae, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:23:58 executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r1, 0x0, 0x0, 0x0) ioctl$FS_IOC_GET_ENCRYPTION_POLICY(r0, 0x400c6615, &(0x7f0000000000)={0x0, @aes256, 0x0, @desc1}) [ 310.317947][ T8281] batman_adv: Cannot find parent device [ 310.327062][ T8281] batman_adv: batadv0: Adding interface: ip6gretap205 [ 310.337920][ T8281] batman_adv: batadv0: The MTU of interface ip6gretap205 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 310.375144][ T8281] batman_adv: batadv0: Not using interface ip6gretap205 (retrying later): interface not active [ 310.401869][ T8283] batman_adv: Cannot find parent device [ 310.415424][ T8283] batman_adv: batadv0: Adding interface: ip6gretap178 [ 310.427558][ T8283] batman_adv: batadv0: The MTU of interface ip6gretap178 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:23:59 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xa, &(0x7f0000000000)={0x1, &(0x7f0000000040)=[{0xfffc, 0x1, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) [ 310.465578][ T8283] batman_adv: batadv0: Not using interface ip6gretap178 (retrying later): interface not active [ 310.486164][ T8284] batman_adv: Cannot find parent device [ 310.495282][ T8284] batman_adv: batadv0: Adding interface: ip6gretap235 04:23:59 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xa, &(0x7f0000000080)={0x2, &(0x7f0000000000)=[{0x8, 0x0, 0x7, 0x4}, {0xffff, 0xda, 0x9, 0xfffff800}]}) pread64(r0, 0x0, 0x0, 0x0) [ 310.507779][ T8284] batman_adv: batadv0: The MTU of interface ip6gretap235 is too small (1434) 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. [ 310.550842][ T8284] batman_adv: batadv0: Not using interface ip6gretap235 (retrying later): interface not active 04:23:59 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc5, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:23:59 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7af, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:23:59 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d862, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 310.630625][ T8298] batman_adv: Cannot find parent device [ 310.638867][ T8298] batman_adv: batadv0: Adding interface: ip6gretap179 [ 310.649758][ T8298] batman_adv: batadv0: The MTU of interface ip6gretap179 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:23:59 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_dev$audion(&(0x7f0000000140), 0x8, 0x2) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000180)) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='./file0\x00', 0x1, 0x0) r3 = openat$hpet(0xffffff9c, &(0x7f0000000200), 0x103000, 0x0) r4 = syz_genetlink_get_family_id$nl80211(&(0x7f00000002c0), r1) sendmsg$NL80211_CMD_DISASSOCIATE(r3, &(0x7f00000004c0)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000480)={&(0x7f0000000300)={0x168, r4, 0x10, 0x70bd27, 0x25dfdbfd, {{}, {@void, @val={0xc, 0x99, {0xffffff77, 0x72}}}}, [@NL80211_ATTR_IE={0x28, 0x2a, [@cf={0x4, 0x6, {0xd, 0x1, 0xb7b4, 0xff}}, @link_id={0x65, 0x12, {@initial, @device_b}}, @ibss={0x6, 0x2, 0x9}, @perr={0x84, 0x2, {0x81}}]}, @NL80211_ATTR_IE={0xf5, 0x2a, [@random_vendor={0xdd, 0xef, "30fb7dd742bbf395752afdaaafaa42ba1a3ea61a53b74104b30e356c7723da317b99cce5bde44b72c930a86af2ef6f91fd649c1c00b60be7782f888a11107122d89159d766d41a5a89d7036fdb857bd4df6dbaeaf6f7904534c7c31742a035e3762112efb11ea7e6a244a640e839630020638de709d100c6cb9f3207fa500741731a84b509bca4a93ae67b5200f4e2c49c9db744240049018342384766ce8f539ba401644590a0bbfb3b4f847a61085e8701422c62bf8aee0b05a2d59e8bb9ef19dbc464703fed7ab6327f32f8dbd04420c16c852d3cff1b6c1fbf400bfd69fbb5bd8b53c208ba3009f0aea8339b74"}]}, @NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}, @NL80211_ATTR_REASON_CODE={0x6, 0x36, 0x5}, @NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}, @NL80211_ATTR_REASON_CODE={0x6}]}, 0x168}, 0x1, 0x0, 0x0, 0x800}, 0x80) ioctl$AUTOFS_DEV_IOCTL_READY(r2, 0xc0189376, &(0x7f0000000080)={{0x1, 0x1, 0x18, r2, {0xc48}}, './file0/file0\x00'}) r6 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') pread64(r6, &(0x7f0000000080)=""/68, 0x44, 0x6) renameat(r5, &(0x7f00000000c0)='./file0\x00', r6, &(0x7f0000000100)='./file0\x00') pread64(r1, 0x0, 0x0, 0x0) [ 310.685828][ T8298] batman_adv: batadv0: Not using interface ip6gretap179 (retrying later): interface not active [ 310.708232][ T8300] batman_adv: Cannot find parent device [ 310.716882][ T8300] batman_adv: batadv0: Adding interface: ip6gretap206 [ 310.726125][ T8300] batman_adv: batadv0: The MTU of interface ip6gretap206 is too small (1434) 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. [ 310.760023][ T8300] batman_adv: batadv0: Not using interface ip6gretap206 (retrying later): interface not active [ 310.785443][ T8303] batman_adv: Cannot find parent device 04:23:59 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc6, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 310.794685][ T8303] batman_adv: batadv0: Adding interface: ip6gretap236 [ 310.804935][ T8303] batman_adv: batadv0: The MTU of interface ip6gretap236 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 310.838532][ T8303] batman_adv: batadv0: Not using interface ip6gretap236 (retrying later): interface not active 04:23:59 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') pread64(r1, &(0x7f0000000080)=""/68, 0x44, 0x6) bind$x25(r1, &(0x7f0000000080), 0x12) openat$cgroup_ro(0xffffffffffffffff, &(0x7f0000000000)='hugetlb.1GB.usage_in_bytes\x00', 0x0, 0x0) [ 310.867446][ T8311] batman_adv: Cannot find parent device 04:23:59 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7b0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 310.876432][ T8311] batman_adv: batadv0: Adding interface: ip6gretap180 [ 310.886079][ T8311] batman_adv: batadv0: The MTU of interface ip6gretap180 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:23:59 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d863, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 310.920334][ T8311] batman_adv: batadv0: Not using interface ip6gretap180 (retrying later): interface not active 04:23:59 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc7, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 310.984442][ T8321] batman_adv: Cannot find parent device [ 310.993722][ T8321] batman_adv: batadv0: Adding interface: ip6gretap237 04:23:59 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f00000000c0)={0x2, &(0x7f0000000080)=[{0x6, 0x0, 0x0, 0x7fff0000}, {0x2, 0xe, 0x0, 0x3}]}) ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, &(0x7f0000000000)) r0 = gettid() tkill(r0, 0x7) r1 = syz_open_procfs(r0, &(0x7f0000000040)='net/raw6\x00') pread64(r1, 0x0, 0x0, 0x0) [ 311.003729][ T8321] batman_adv: batadv0: The MTU of interface ip6gretap237 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 311.041819][ T8321] batman_adv: batadv0: Not using interface ip6gretap237 (retrying later): interface not active [ 311.064990][ T8316] batman_adv: Cannot find parent device [ 311.074755][ T8316] batman_adv: batadv0: Adding interface: ip6gretap207 04:23:59 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d864, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 311.086300][ T8316] batman_adv: batadv0: The MTU of interface ip6gretap207 is too small (1434) 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. [ 311.126908][ T8316] batman_adv: batadv0: Not using interface ip6gretap207 (retrying later): interface not active [ 311.152164][ T8324] batman_adv: Cannot find parent device [ 311.160378][ T8324] batman_adv: batadv0: Adding interface: ip6gretap181 [ 311.169498][ T8324] batman_adv: batadv0: The MTU of interface ip6gretap181 is too small (1434) 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. [ 311.203237][ T8324] batman_adv: batadv0: Not using interface ip6gretap181 (retrying later): interface not active [ 311.224268][ T8330] batman_adv: Cannot find parent device [ 311.233123][ T8330] batman_adv: batadv0: Adding interface: ip6gretap238 04:23:59 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7b1, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 311.242198][ T8330] batman_adv: batadv0: The MTU of interface ip6gretap238 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 311.279334][ T8330] batman_adv: batadv0: Not using interface ip6gretap238 (retrying later): interface not active [ 311.326399][ T8336] batman_adv: Cannot find parent device [ 311.336336][ T8336] batman_adv: batadv0: Adding interface: ip6gretap208 [ 311.346894][ T8336] batman_adv: batadv0: The MTU of interface ip6gretap208 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:23:59 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d865, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:23:59 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc8, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 311.385233][ T8336] batman_adv: batadv0: Not using interface ip6gretap208 (retrying later): interface not active [ 311.443581][ T8340] batman_adv: Cannot find parent device [ 311.454358][ T8340] batman_adv: batadv0: Adding interface: ip6gretap239 04:24:00 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7b2, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 311.466443][ T8340] batman_adv: batadv0: The MTU of interface ip6gretap239 is too small (1434) 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. [ 311.512979][ T8340] batman_adv: batadv0: Not using interface ip6gretap239 (retrying later): interface not active [ 311.535671][ T8341] batman_adv: Cannot find parent device [ 311.544655][ T8341] batman_adv: batadv0: Adding interface: ip6gretap182 [ 311.553174][ T8341] batman_adv: batadv0: The MTU of interface ip6gretap182 is too small (1434) 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. [ 311.591530][ T8341] batman_adv: batadv0: Not using interface ip6gretap182 (retrying later): interface not active [ 311.644219][ T8343] batman_adv: Cannot find parent device [ 311.652533][ T8343] batman_adv: batadv0: Adding interface: ip6gretap209 04:24:00 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d866, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 311.661316][ T8343] batman_adv: batadv0: The MTU of interface ip6gretap209 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 311.701133][ T8343] batman_adv: batadv0: Not using interface ip6gretap209 (retrying later): interface not active 04:24:00 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc9, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 311.751810][ T8348] batman_adv: Cannot find parent device [ 311.761813][ T8348] batman_adv: batadv0: Adding interface: ip6gretap240 04:24:00 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7b3, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 311.771907][ T8348] batman_adv: batadv0: The MTU of interface ip6gretap240 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 311.808926][ T8348] batman_adv: batadv0: Not using interface ip6gretap240 (retrying later): interface not active [ 311.827592][ T8351] batman_adv: Cannot find parent device [ 311.837564][ T8351] batman_adv: batadv0: Adding interface: ip6gretap183 [ 311.847679][ T8351] batman_adv: batadv0: The MTU of interface ip6gretap183 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:00 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d867, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 311.882787][ T8351] batman_adv: batadv0: Not using interface ip6gretap183 (retrying later): interface not active [ 311.902199][ T8353] batman_adv: Cannot find parent device [ 311.912955][ T8353] batman_adv: batadv0: Adding interface: ip6gretap210 [ 311.922835][ T8353] batman_adv: batadv0: The MTU of interface ip6gretap210 is too small (1434) 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. [ 311.959361][ T8353] batman_adv: batadv0: Not using interface ip6gretap210 (retrying later): interface not active [ 311.978732][ T8360] batman_adv: Cannot find parent device [ 311.987644][ T8360] batman_adv: batadv0: Adding interface: ip6gretap241 [ 311.997759][ T8360] batman_adv: batadv0: The MTU of interface ip6gretap241 is too small (1434) 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. [ 312.037797][ T8360] batman_adv: batadv0: Not using interface ip6gretap241 (retrying later): interface not active 04:24:00 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7b4, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:00 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcca, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:00 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d868, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 312.127910][ T8365] batman_adv: Cannot find parent device [ 312.141865][ T8365] batman_adv: batadv0: Adding interface: ip6gretap211 [ 312.154833][ T8365] batman_adv: batadv0: The MTU of interface ip6gretap211 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 312.195389][ T8365] batman_adv: batadv0: Not using interface ip6gretap211 (retrying later): interface not active [ 312.216365][ T8367] batman_adv: Cannot find parent device [ 312.229856][ T8367] batman_adv: batadv0: Adding interface: ip6gretap242 [ 312.238195][ T8367] batman_adv: batadv0: The MTU of interface ip6gretap242 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 312.278215][ T8367] batman_adv: batadv0: Not using interface ip6gretap242 (retrying later): interface not active [ 312.298433][ T8369] batman_adv: Cannot find parent device [ 312.312013][ T8369] batman_adv: batadv0: Adding interface: ip6gretap184 [ 312.319943][ T8369] batman_adv: batadv0: The MTU of interface ip6gretap184 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 312.352183][ T8369] batman_adv: batadv0: Not using interface ip6gretap184 (retrying later): interface not active 04:24:01 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7b5, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:01 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dccb, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:01 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d869, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 312.440691][ T8377] batman_adv: Cannot find parent device [ 312.451023][ T8377] batman_adv: batadv0: Adding interface: ip6gretap185 [ 312.462894][ T8377] batman_adv: batadv0: The MTU of interface ip6gretap185 is too small (1434) 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. [ 312.500743][ T8377] batman_adv: batadv0: Not using interface ip6gretap185 (retrying later): interface not active [ 312.534137][ T8375] batman_adv: Cannot find parent device [ 312.544026][ T8375] batman_adv: batadv0: Adding interface: ip6gretap243 [ 312.553206][ T8375] batman_adv: batadv0: The MTU of interface ip6gretap243 is too small (1434) 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. [ 312.587629][ T8375] batman_adv: batadv0: Not using interface ip6gretap243 (retrying later): interface not active [ 312.605961][ T8379] batman_adv: Cannot find parent device [ 312.616997][ T8379] batman_adv: batadv0: Adding interface: ip6gretap212 [ 312.626689][ T8379] batman_adv: batadv0: The MTU of interface ip6gretap212 is too small (1434) 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. 04:24:01 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d86a, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 312.663345][ T8379] batman_adv: batadv0: Not using interface ip6gretap212 (retrying later): interface not active [ 312.705012][ T8384] batman_adv: Cannot find parent device 04:24:01 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dccc, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:01 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7b6, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 312.713932][ T8384] batman_adv: batadv0: Adding interface: ip6gretap244 [ 312.723602][ T8384] batman_adv: batadv0: The MTU of interface ip6gretap244 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 312.758801][ T8384] batman_adv: batadv0: Not using interface ip6gretap244 (retrying later): interface not active [ 312.783699][ T8387] batman_adv: Cannot find parent device [ 312.792063][ T8387] batman_adv: batadv0: Adding interface: ip6gretap186 [ 312.800494][ T8387] batman_adv: batadv0: The MTU of interface ip6gretap186 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 312.834509][ T8387] batman_adv: batadv0: Not using interface ip6gretap186 (retrying later): interface not active [ 312.856205][ T8388] batman_adv: Cannot find parent device 04:24:01 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d86b, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 312.865300][ T8388] batman_adv: batadv0: Adding interface: ip6gretap213 [ 312.875390][ T8388] batman_adv: batadv0: The MTU of interface ip6gretap213 is too small (1434) 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. [ 312.908455][ T8388] batman_adv: batadv0: Not using interface ip6gretap213 (retrying later): interface not active [ 312.946203][ T8392] batman_adv: Cannot find parent device [ 312.955112][ T8392] batman_adv: batadv0: Adding interface: ip6gretap245 [ 312.963987][ T8392] batman_adv: batadv0: The MTU of interface ip6gretap245 is too small (1434) 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. 04:24:01 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dccd, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 312.996623][ T8392] batman_adv: batadv0: Not using interface ip6gretap245 (retrying later): interface not active 04:24:01 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7b7, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 313.067495][ T8397] batman_adv: Cannot find parent device 04:24:01 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d86c, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 313.110050][ T8397] batman_adv: batadv0: Adding interface: ip6gretap187 [ 313.122459][ T8397] batman_adv: batadv0: The MTU of interface ip6gretap187 is too small (1434) 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. [ 313.158107][ T8397] batman_adv: batadv0: Not using interface ip6gretap187 (retrying later): interface not active [ 313.181704][ T8399] batman_adv: Cannot find parent device [ 313.191884][ T8399] batman_adv: batadv0: Adding interface: ip6gretap214 [ 313.200994][ T8399] batman_adv: batadv0: The MTU of interface ip6gretap214 is too small (1434) 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. [ 313.238268][ T8399] batman_adv: batadv0: Not using interface ip6gretap214 (retrying later): interface not active [ 313.260222][ T8401] batman_adv: Cannot find parent device [ 313.271262][ T8401] batman_adv: batadv0: Adding interface: ip6gretap246 [ 313.282865][ T8401] batman_adv: batadv0: The MTU of interface ip6gretap246 is too small (1434) 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. [ 313.312229][ T8401] batman_adv: batadv0: Not using interface ip6gretap246 (retrying later): interface not active [ 313.325545][ T8402] __nla_validate_parse: 21 callbacks suppressed [ 313.325867][ T8402] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 313.355416][ T8403] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:02 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcce, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:02 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d86d, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:02 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7b8, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:02 executing program 2: ioctl$DRM_IOCTL_MODE_LIST_LESSEES(0xffffffffffffffff, 0xc01064c7, &(0x7f0000000080)={0x1, 0x0, &(0x7f0000000000)=[0x0]}) ioctl$DRM_IOCTL_MODE_REVOKE_LEASE(0xffffffffffffffff, 0xc00464c9, &(0x7f00000000c0)={r0}) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') [ 313.431975][ T8407] batman_adv: Cannot find parent device [ 313.439210][ T8407] batman_adv: batadv0: Adding interface: ip6gretap188 [ 313.447962][ T8407] batman_adv: batadv0: The MTU of interface ip6gretap188 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 313.483187][ T8407] batman_adv: batadv0: Not using interface ip6gretap188 (retrying later): interface not active [ 313.502917][ T8409] batman_adv: Cannot find parent device [ 313.512955][ T8409] batman_adv: batadv0: Adding interface: ip6gretap247 [ 313.520822][ T8409] batman_adv: batadv0: The MTU of interface ip6gretap247 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 313.557664][ T8409] batman_adv: batadv0: Not using interface ip6gretap247 (retrying later): interface not active 04:24:02 executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x8, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x9, 0x0, 0x0, 0x1}]}) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000080)) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000100)={0x0}) r3 = socket$rxrpc(0x21, 0x2, 0x2) ioctl$EXT4_IOC_SWAP_BOOT(r1, 0x6611) sendmmsg$inet(r3, &(0x7f0000001c80)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0) setsockopt$RXRPC_SECURITY_KEY(r3, 0x110, 0x1, 0x0, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_ADDFD(r0, 0x40182103, &(0x7f0000000000)={r2, 0x3, r3, 0xfff, 0x80000}) pread64(r1, 0x0, 0x0, 0x0) ioctl$LOOP_CTL_REMOVE(0xffffffffffffffff, 0x4c81, 0x2) [ 313.578809][ T8410] batman_adv: Cannot find parent device [ 313.586553][ T8410] batman_adv: batadv0: Adding interface: ip6gretap215 04:24:02 executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') fsetxattr(r1, &(0x7f0000000000)=@known='trusted.overlay.opaque\x00', &(0x7f00000000c0)='\x00agz\xca\xbb\xdfE\x89^\xf3D\x82\xb1\xf7dj\x9c\x1c\\$U\x99\xe6P\x11!\xdaw\xbc\x84MZ-~\xadIX\x8d\xab\v\xbc\x96\v\x9a\xbb0\xc0H\xd0\xc3\\\xa6{\x90\xdf\xb4R\r\x06\xa0\xf8\xcc\xab\x95!5\xf4\xcd\x81Vt\x8e\xc4\xe0(\x96\xd3\x91=\xe1D\xbf\xc0\r\x8d\v\xf7i\x19\xc7\x8dtE\xf6\x10\xb2c\a\xbe>#\x98\xb4.\xf5T\x1c\xb3Bn\x820\xe5\xa6\r\xc7\x14\xf0\xd2\x12\xdbX\vM\xab\x8e\xa6+<_\x80\xa2. \xd5\x94>\x846o\xee\xfei\xe2\x17aWd_J\xbd\xfc,\xf1b\x9b\xb9\xac$KG[\xdd\x83\xadT\xaf[\xb5[j6Ml\x90\xe7\x18\xb9\xa4\x8b\x1f\xa1\xd1:wm%hd\xaa$\xdb\xf6\x12\b\xa2\xb2\x8db\x98\x1cjV\x19\xec{\xbe\xc2\xe4\xb9g\b<\x1e\x05\x15os\xcfy\xab\x97\xf4\xeb\xbc4\xdc\x92]\n\xfd\xc3e\xc4\xb4\xa3C\xcd\xc98\xad<)h\xdf\n\x05\x10\\*2', 0xfc, 0x1) r2 = socket$rxrpc(0x21, 0x2, 0x2) sendmmsg$inet(r2, &(0x7f0000001c80)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0) setsockopt$RXRPC_SECURITY_KEY(r2, 0x110, 0x1, 0x0, 0x0) r3 = socket$rxrpc(0x21, 0x2, 0x2) sendmmsg$inet(r3, &(0x7f0000001c80)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0) setsockopt$RXRPC_SECURITY_KEY(r3, 0x110, 0x1, 0x0, 0x0) sendmmsg(r3, &(0x7f0000001980)=[{{0x0, 0x0, &(0x7f00000002c0)=[{&(0x7f00000001c0)="a5c8a3fc6e89aab921a43814f25577f8332e469e0732a79c8b588af6bea2e284ea7b8e4d24d100aebb0bed2f0385b1f8da8d3555ea5547b43b2adaa759016b33bf7138c56ecd49e03313d6fb9ed8bb63cf7cc01b6bc1cc94e410f27bd1ed559b3a95a303e6c5173b6576ac3c", 0x6c}, {&(0x7f0000000280)="1cd78f4f453214b5ae166c2932887a308a0984ca79527ac621c83971e6f9ee8c5280", 0x22}], 0x2, &(0x7f0000000300)=[{0x100c, 0x113, 0xffffffff, "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"}], 0x100c}}, {{&(0x7f0000001340)=@pppol2tpin6={0x18, 0x1, {0x0, r2, 0x3, 0x4, 0x2, 0x1, {0xa, 0x4e23, 0x640, @private2, 0x7}}}, 0x80, &(0x7f0000001540)=[{&(0x7f00000013c0)="a4dfc2c0", 0x4}, {&(0x7f0000001400)="0126ed702eebe36c3c139bbef310914a26277e68519ad9a11bbb984a4e28f67f3a0905b84d0a064137708496262c820a39b53a4ada82ae81405be0ae3a63aa42db45bdcccdf4d370b1e09b7157e6315bc9de706981566c7abe24645300d62d6eaedc9f729c213e06a4860585311fb7d5443c8b1ef22b4dc0de6ea7b9c8fb7b8ccbebb758ed842c4a818c01119294e22b48d334c9c86c6ce6f78bde6402c252b8f67d7621", 0xa4}, {&(0x7f00000014c0)="d61176714cb138313ce3ab3f5947a539938327f90b25e2eaf1460f33b476694e49fc4b15ee1c1fe07fbd9bd0814fb6f333d22781d8be2e68439bb208d9cc91f8c0da6bee5cef38cb3b0a3bf24b8cebc1833f4205371ce8eafaf2a3a2d49d18b2b4bac4ca5b441caec870", 0x6a}], 0x3, &(0x7f0000001580)=[{0x7c, 0x10c, 0x9, "615044b4134fee038cedd546eac8b5842a3c98635c32fe66bbf320bd5b4b8e8301924c8421d48de440c353504a013bc1b61bdd8798c9086696c16359d096565ea4cf256e0b3454f737b9e8dfbde76432b2607833db4dab8d976d0f776d110c700847b6d0abae67172bd65c8f1a91ae"}, {0xe0, 0x111, 0x2, "1bb673e844ada22c5a55a8223af560e769db8b04f476ebe31c5fcba7254d73c0f2d36722963fba0e23193ae2bcec786394e4456c74fbc1c4a02c8a4023cf95aa51a87886eddbf2df27fd91f9a2e72ba519fa80ae45de33aa3640df3399ca7aebe0761982fa503d66a05b844c61979bdee5f986e761874072eb64b0ac556a1728a95dadcef35636f0b95bfa44a6ebc344835c74a87cd6d03f6ac21665abd668cbc2f6799b91982d80741e52b8a888964d5e624e2c8228f9eb34131773255f7bcf446732130be9ec66b841cbf8c7b4ecd2d3"}, {0x68, 0x10c, 0x80000000, "cf2d99527480290c105ab1ec6a7deb2858b2cecfde940d943d8e7b41fdf11a853115996c313d3e54f559395c3db52548320de882fb52e5402adefef539c611a49162daa58e3fde04caa35991f8ff3e44468c796578d8ec54b6f78f53"}, {0x10c, 0x0, 0x5c, "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"}, {0xcc, 0x114, 0x6, "ec130f95d11c1cae2cf06e45e906211ba5781796a0c6ed36bcae1873d01e6c4f22f6bded27a9cd5c9ceb4d4b6d5adc4edaa8262464797ea5ee41a593842d56ca0c6a6413a87a678dcd08125e433bbb34b8690a099c7c6077ddf25fb33e4ece63bf02f8f19759242b9a547554b95065bbad28af9ebfb0de26c73005c410fc7235e0722f121388c90c89ddff588e850b572866bb8c37d625e48d175110d1a49621eb324e5cf96ba8704e7373fb03e5b6c92d2a1d12e834f0e20c11aeb59c086f39"}, {0x40, 0x10c, 0x200, "df3944252338b63f1fd08729667c64b6e2dc9c321a819ba44bf39090244699a4c83aa0ca94351b9043ae58369de8696f50b0fca6"}], 0x3dc}}], 0x2, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_ADDFD(r0, 0x40182103, &(0x7f0000000080)={0x0, 0x0, r2, 0x2af, 0x80000}) bpf$PROG_LOAD(0x5, &(0x7f0000001b80)={0x8, 0x4, &(0x7f00000019c0)=@framed={{0x18, 0x0, 0x0, 0x0, 0x5, 0x0, 0x0, 0x0, 0x3}, [@exit]}, &(0x7f0000001a00)='syzkaller\x00', 0x200, 0xbb, &(0x7f0000001a40)=""/187, 0x7382c7523ffe60ca, 0x8, '\x00', 0x0, 0x14, r1, 0x8, &(0x7f0000001b00)={0x0, 0x1}, 0x8, 0x10, &(0x7f0000001b40)={0x3, 0xe, 0x1, 0x5}, 0x10, 0x0, r1}, 0x74) pread64(r1, 0x0, 0x0, 0x0) [ 313.596144][ T8410] batman_adv: batadv0: The MTU of interface ip6gretap215 is too small (1434) 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. [ 313.628610][ T8410] batman_adv: batadv0: Not using interface ip6gretap215 (retrying later): interface not active 04:24:02 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d86e, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 313.643612][ T8414] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 313.704609][ T8426] batman_adv: Cannot find parent device [ 313.715293][ T8426] batman_adv: batadv0: Adding interface: ip6gretap248 04:24:02 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dccf, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:02 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0xa, &(0x7f0000000080)=[{0x510, 0x4, 0x0, 0x3}, {0x3d, 0x2, 0x1, 0xa6}, {0x80, 0x70, 0x6, 0x5}, {0x7, 0x3, 0x1, 0x10001}, {0x6, 0x40, 0x3, 0x7}, {0x7, 0x8, 0x1}, {0x5, 0x3, 0x64, 0x3}, {0xc0, 0x85, 0x2, 0x9}, {0x2, 0x6, 0x80, 0x40}, {0x353, 0xd6, 0x3f, 0xffffff7f}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) [ 313.725029][ T8426] batman_adv: batadv0: The MTU of interface ip6gretap248 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 313.759110][ T8426] batman_adv: batadv0: Not using interface ip6gretap248 (retrying later): interface not active [ 313.774183][ T8427] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 313.791618][ T8431] batman_adv: Cannot find parent device [ 313.800093][ T8431] batman_adv: batadv0: Adding interface: ip6gretap189 [ 313.808694][ T8431] batman_adv: batadv0: The MTU of interface ip6gretap189 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 313.844582][ T8431] batman_adv: batadv0: Not using interface ip6gretap189 (retrying later): interface not active 04:24:02 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000000)='net/l2cap\x00') pread64(r0, 0x0, 0x0, 0x0) 04:24:02 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7b9, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:02 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d86f, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 313.881592][ T8435] batman_adv: Cannot find parent device [ 313.888034][ T8435] batman_adv: batadv0: Adding interface: ip6gretap216 [ 313.897065][ T8435] batman_adv: batadv0: The MTU of interface ip6gretap216 is too small (1434) 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. [ 313.924935][ T8435] batman_adv: batadv0: Not using interface ip6gretap216 (retrying later): interface not active [ 313.955457][ T8442] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 313.972545][ T8441] batman_adv: Cannot find parent device 04:24:02 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcd0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 313.980700][ T8441] batman_adv: batadv0: Adding interface: ip6gretap249 [ 313.988940][ T8441] batman_adv: batadv0: The MTU of interface ip6gretap249 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 314.023838][ T8441] batman_adv: batadv0: Not using interface ip6gretap249 (retrying later): interface not active [ 314.052263][ T8444] batman_adv: Cannot find parent device 04:24:02 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7ba, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 314.076072][ T8444] batman_adv: batadv0: Adding interface: ip6gretap190 [ 314.089089][ T8444] batman_adv: batadv0: The MTU of interface ip6gretap190 is too small (1434) 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. 04:24:02 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d870, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 314.123935][ T8444] batman_adv: batadv0: Not using interface ip6gretap190 (retrying later): interface not active [ 314.149738][ T8447] batman_adv: Cannot find parent device [ 314.158141][ T8447] batman_adv: batadv0: Adding interface: ip6gretap217 [ 314.167684][ T8447] batman_adv: batadv0: The MTU of interface ip6gretap217 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 314.200522][ T8447] batman_adv: batadv0: Not using interface ip6gretap217 (retrying later): interface not active [ 314.224982][ T8451] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 314.243869][ T8450] batman_adv: Cannot find parent device [ 314.253109][ T8450] batman_adv: batadv0: Adding interface: ip6gretap250 [ 314.262058][ T8450] batman_adv: batadv0: The MTU of interface ip6gretap250 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:02 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7bb, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:02 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcd1, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 314.297033][ T8450] batman_adv: batadv0: Not using interface ip6gretap250 (retrying later): interface not active [ 314.320957][ T8453] batman_adv: Cannot find parent device [ 314.328357][ T8453] batman_adv: batadv0: Adding interface: ip6gretap191 [ 314.336552][ T8453] batman_adv: batadv0: The MTU of interface ip6gretap191 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 314.366726][ T8453] batman_adv: batadv0: Not using interface ip6gretap191 (retrying later): interface not active [ 314.382139][ T8455] batman_adv: Cannot find parent device [ 314.388792][ T8455] batman_adv: batadv0: Adding interface: ip6gretap218 04:24:03 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d871, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 314.397733][ T8455] batman_adv: batadv0: The MTU of interface ip6gretap218 is too small (1434) 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. [ 314.426748][ T8455] batman_adv: batadv0: Not using interface ip6gretap218 (retrying later): interface not active 04:24:03 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) r1 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xa, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6, 0x0, 0x0, 0x7fc00100}]}) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r1, 0xc0502100, &(0x7f0000000180)={0x0}) r3 = creat(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$SECCOMP_IOCTL_NOTIF_ADDFD(r1, 0x40182103, &(0x7f00000000c0)={r2, 0x1, r3}) r4 = socket$rxrpc(0x21, 0x2, 0x2) sendmmsg$inet(r4, &(0x7f0000001c80)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0) setsockopt$RXRPC_SECURITY_KEY(r4, 0x110, 0x1, 0x0, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_ADDFD(r0, 0x40182103, &(0x7f0000000000)={r2, 0x2, r4, 0x1000}) [ 314.439319][ T8458] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 314.469236][ T8463] batman_adv: Cannot find parent device 04:24:03 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcd2, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 314.477191][ T8463] batman_adv: batadv0: Adding interface: ip6gretap251 [ 314.486206][ T8463] batman_adv: batadv0: The MTU of interface ip6gretap251 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 314.515580][ T8463] batman_adv: batadv0: Not using interface ip6gretap251 (retrying later): interface not active 04:24:03 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7bc, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:03 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d872, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 314.569264][ T8468] batman_adv: Cannot find parent device [ 314.577603][ T8468] batman_adv: batadv0: Adding interface: ip6gretap192 [ 314.586506][ T8468] batman_adv: batadv0: The MTU of interface ip6gretap192 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 314.619478][ T8468] batman_adv: batadv0: Not using interface ip6gretap192 (retrying later): interface not active [ 314.637961][ T8472] batman_adv: Cannot find parent device [ 314.646971][ T8472] batman_adv: batadv0: Adding interface: ip6gretap252 [ 314.655642][ T8472] batman_adv: batadv0: The MTU of interface ip6gretap252 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 314.686420][ T8472] batman_adv: batadv0: Not using interface ip6gretap252 (retrying later): interface not active [ 314.706425][ T8471] batman_adv: Cannot find parent device [ 314.714643][ T8471] batman_adv: batadv0: Adding interface: ip6gretap219 04:24:03 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d873, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 314.725292][ T8471] batman_adv: batadv0: The MTU of interface ip6gretap219 is too small (1434) 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. [ 314.758117][ T8471] batman_adv: batadv0: Not using interface ip6gretap219 (retrying later): interface not active [ 314.774054][ T8474] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 314.790826][ T8480] batman_adv: Cannot find parent device 04:24:03 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcd3, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 314.799675][ T8480] batman_adv: batadv0: Adding interface: ip6gretap253 [ 314.809643][ T8480] batman_adv: batadv0: The MTU of interface ip6gretap253 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 314.843515][ T8480] batman_adv: batadv0: Not using interface ip6gretap253 (retrying later): interface not active [ 314.859516][ T8481] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 314.873102][ T8483] batman_adv: Cannot find parent device [ 314.879533][ T8483] batman_adv: batadv0: Adding interface: ip6gretap193 04:24:03 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d874, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:03 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7bd, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 314.886021][ T8483] batman_adv: batadv0: The MTU of interface ip6gretap193 is too small (1434) 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. [ 314.920034][ T8483] batman_adv: batadv0: Not using interface ip6gretap193 (retrying later): interface not active [ 314.949533][ T8486] batman_adv: Cannot find parent device [ 314.957343][ T8486] batman_adv: batadv0: Adding interface: ip6gretap254 [ 314.965417][ T8486] batman_adv: batadv0: The MTU of interface ip6gretap254 is too small (1434) 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. [ 314.995163][ T8486] batman_adv: batadv0: Not using interface ip6gretap254 (retrying later): interface not active [ 315.008719][ T8490] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 315.024068][ T8491] batman_adv: Cannot find parent device [ 315.032239][ T8491] batman_adv: batadv0: Adding interface: ip6gretap220 [ 315.041249][ T8491] batman_adv: batadv0: The MTU of interface ip6gretap220 is too small (1434) 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. [ 315.071110][ T8491] batman_adv: batadv0: Not using interface ip6gretap220 (retrying later): interface not active [ 315.300079][ T37] kauditd_printk_skb: 351 callbacks suppressed [ 315.300095][ T37] audit: type=1326 audit(1636259043.921:509): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=8460 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x7fc00000 [ 315.332962][ T37] audit: type=1326 audit(1636259043.921:510): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=8460 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=40000003 syscall=54 compat=1 ip=0xf6f24549 code=0x7fc00000 [ 315.355150][ T37] audit: type=1326 audit(1636259043.921:511): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=8460 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x7fc00000 [ 315.378067][ T37] audit: type=1326 audit(1636259043.921:512): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=8460 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x7fc00000 [ 315.399471][ T37] audit: type=1326 audit(1636259043.921:513): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=8460 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x7fc00000 [ 315.421912][ T37] audit: type=1326 audit(1636259043.921:514): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=8460 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x7fc00000 [ 315.443190][ T37] audit: type=1326 audit(1636259043.921:515): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=8460 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x7fc00000 [ 315.465065][ T37] audit: type=1326 audit(1636259043.921:516): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=8460 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x7fc00000 [ 315.487032][ T37] audit: type=1326 audit(1636259043.921:517): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=8460 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x7fc00000 [ 315.510234][ T37] audit: type=1326 audit(1636259043.921:518): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=8460 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x7fc00000 04:24:04 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcd4, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:04 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d875, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:04 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7be, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:04 executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000080)) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') r2 = socket$rxrpc(0x21, 0x2, 0x2) sendmmsg$inet(r2, &(0x7f0000001c80)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0) setsockopt$RXRPC_SECURITY_KEY(r2, 0x110, 0x1, 0x0, 0x0) preadv(r2, &(0x7f0000000000)=[{&(0x7f0000000100)=""/92, 0x5c}], 0x1, 0x7fff, 0xc7a) pread64(r1, 0x0, 0x0, 0x0) [ 315.578254][ T8506] batman_adv: Cannot find parent device [ 315.587552][ T8506] batman_adv: batadv0: Adding interface: ip6gretap194 [ 315.596654][ T8506] batman_adv: batadv0: The MTU of interface ip6gretap194 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 315.628824][ T8506] batman_adv: batadv0: Not using interface ip6gretap194 (retrying later): interface not active [ 315.649025][ T8505] batman_adv: Cannot find parent device [ 315.656204][ T8505] batman_adv: batadv0: Adding interface: ip6gretap221 [ 315.664768][ T8505] batman_adv: batadv0: The MTU of interface ip6gretap221 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 315.694869][ T8505] batman_adv: batadv0: Not using interface ip6gretap221 (retrying later): interface not active 04:24:04 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x86, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000000)='personality\x00') pread64(r0, 0x0, 0x0, 0x0) [ 315.714093][ T8503] batman_adv: Cannot find parent device [ 315.722447][ T8503] batman_adv: batadv0: Adding interface: ip6gretap255 [ 315.733399][ T8503] batman_adv: batadv0: The MTU of interface ip6gretap255 is too small (1434) 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. [ 315.764977][ T8503] batman_adv: batadv0: Not using interface ip6gretap255 (retrying later): interface not active 04:24:04 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcd5, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:04 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d876, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:04 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7bf, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:04 executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000100)={0x1, &(0x7f00000000c0)=[{0x6, 0x8, 0x0, 0x7fff0000}]}) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xc, &(0x7f0000000080)={0x3, &(0x7f0000000000)=[{0x4, 0x9, 0x7, 0x5e}, {0x6, 0x7f, 0x6, 0x3}, {0xaf9b, 0x9, 0x8, 0x7fffffff}]}) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r1, 0x0, 0x0, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000140)) [ 315.843809][ T8521] batman_adv: Cannot find parent device [ 315.852187][ T8521] batman_adv: batadv0: Adding interface: ip6gretap195 [ 315.861892][ T8521] batman_adv: batadv0: The MTU of interface ip6gretap195 is too small (1434) 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. [ 315.893086][ T8521] batman_adv: batadv0: Not using interface ip6gretap195 (retrying later): interface not active [ 315.910460][ T8522] batman_adv: Cannot find parent device [ 315.918916][ T8522] batman_adv: batadv0: Adding interface: ip6gretap222 [ 315.928273][ T8522] batman_adv: batadv0: The MTU of interface ip6gretap222 is too small (1434) 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. [ 315.958112][ T8522] batman_adv: batadv0: Not using interface ip6gretap222 (retrying later): interface not active 04:24:04 executing program 2: ioctl$KVM_SET_BOOT_CPU_ID(0xffffffffffffffff, 0xae78, &(0x7f0000000000)) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xc, &(0x7f00000000c0)={0x1, &(0x7f0000000080)=[{0x2, 0x3, 0x0, 0x5}]}) pread64(r0, 0x0, 0x0, 0x0) [ 315.983771][ T8523] batman_adv: Cannot find parent device [ 315.990458][ T8523] batman_adv: batadv0: Adding interface: ip6gretap256 [ 315.997953][ T8523] batman_adv: batadv0: The MTU of interface ip6gretap256 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 316.044425][ T8523] batman_adv: batadv0: Not using interface ip6gretap256 (retrying later): interface not active 04:24:04 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7c0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:04 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcd6, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:04 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) 04:24:04 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d877, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 316.140956][ T8535] batman_adv: Cannot find parent device [ 316.149801][ T8535] batman_adv: batadv0: Adding interface: ip6gretap223 [ 316.158856][ T8535] batman_adv: batadv0: The MTU of interface ip6gretap223 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 316.189021][ T8535] batman_adv: batadv0: Not using interface ip6gretap223 (retrying later): interface not active [ 316.207791][ T8536] batman_adv: Cannot find parent device [ 316.215710][ T8536] batman_adv: batadv0: Adding interface: ip6gretap196 [ 316.224925][ T8536] batman_adv: batadv0: The MTU of interface ip6gretap196 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 316.258742][ T8536] batman_adv: batadv0: Not using interface ip6gretap196 (retrying later): interface not active 04:24:04 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') pread64(r1, &(0x7f0000000080)=""/68, 0x44, 0x6) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r1, 0xc0502100, &(0x7f0000000080)) r2 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') r3 = socket$rxrpc(0x21, 0x2, 0x2) sendmmsg$inet(r3, &(0x7f0000001c80)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0) setsockopt$RXRPC_SECURITY_KEY(r3, 0x110, 0x1, 0x0, 0x0) ioctl$FS_IOC_RESVSP(r3, 0x402c5828, &(0x7f0000000000)={0x0, 0x1, 0xe25, 0x9}) pread64(r2, &(0x7f0000000080)=""/68, 0x44, 0x6) ioctl$sock_bt_hci(r2, 0x400448dd, &(0x7f0000000100)="5cada42233251cffcf271a49a5eaf9a4b95bec941a9509beadfcfb083d3e0c05e4179cbfd85dee7ffe9e204e7c5e82b808048eae2d983b3581300f1a34d73c5fafe4082c71d768db66956e728c539399e2") ioctl$sock_bt_hci(r2, 0x400448dc, &(0x7f0000000180)="cdef632dd688d779743123bd806adb9cad203cfb30b2b8b67b3c84aa27866be298a210a027897e44b4b63ddbcd3a22b1666ebc7329f8f540ae139f02d52e") [ 316.277950][ T8538] batman_adv: Cannot find parent device [ 316.290116][ T8538] batman_adv: batadv0: Adding interface: ip6gretap257 [ 316.300248][ T8538] batman_adv: batadv0: The MTU of interface ip6gretap257 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 316.336632][ T8538] batman_adv: batadv0: Not using interface ip6gretap257 (retrying later): interface not active 04:24:05 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7c1, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:05 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcd7, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:05 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d878, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 316.418372][ T8552] batman_adv: Cannot find parent device [ 316.427381][ T8552] batman_adv: batadv0: Adding interface: ip6gretap224 [ 316.440336][ T8552] batman_adv: batadv0: The MTU of interface ip6gretap224 is too small (1434) 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. [ 316.472239][ T8552] batman_adv: batadv0: Not using interface ip6gretap224 (retrying later): interface not active 04:24:05 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000040)='clear_refs\x00') pread64(r0, &(0x7f0000000080)=""/68, 0x44, 0x6) ioctl$VIDIOC_TRY_EXT_CTRLS(r0, 0xc0185649, &(0x7f0000000080)={0xa30000, 0x20, 0x5, 0xffffffffffffffff, 0x0, &(0x7f0000000000)={0x990af5, 0x40, '\x00', @ptr=0x6b63}}) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r1, 0x0, 0x0, 0x0) [ 316.495445][ T8556] batman_adv: Cannot find parent device [ 316.504903][ T8556] batman_adv: batadv0: Adding interface: ip6gretap197 [ 316.513835][ T8556] batman_adv: batadv0: The MTU of interface ip6gretap197 is too small (1434) 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. [ 316.548310][ T8556] batman_adv: batadv0: Not using interface ip6gretap197 (retrying later): interface not active [ 316.568166][ T8555] batman_adv: Cannot find parent device [ 316.577497][ T8555] batman_adv: batadv0: Adding interface: ip6gretap258 [ 316.586287][ T8555] batman_adv: batadv0: The MTU of interface ip6gretap258 is too small (1434) 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. 04:24:05 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x2, &(0x7f0000000080)=[{0x6, 0x0, 0x39, 0x7ffefffc}, {0x0, 0x6, 0x4, 0x2}]}) r0 = gettid() tkill(r0, 0x7) r1 = syz_open_procfs(r0, &(0x7f0000000000)='net/ip_tables_matches\x00') pread64(r1, 0x0, 0x0, 0x0) [ 316.620565][ T8555] batman_adv: batadv0: Not using interface ip6gretap258 (retrying later): interface not active 04:24:05 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7c2, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:05 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d879, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:05 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xc, &(0x7f0000001500)={0x2, &(0x7f0000000000)=[{0x9, 0x2, 0x47, 0x2}, {0x8783, 0x9, 0x74, 0x9}]}) r1 = socket$rxrpc(0x21, 0x2, 0x2) sendmmsg$inet(r1, &(0x7f0000001c80)=[{{0x0, 0x50, 0x0}}], 0x1, 0x0) setsockopt$RXRPC_SECURITY_KEY(r1, 0x110, 0x1, 0x0, 0x0) preadv(r1, &(0x7f00000014c0)=[{&(0x7f0000000080)=""/233, 0xe9}, {&(0x7f0000000280)=""/218, 0xda}, {&(0x7f0000000180)=""/173, 0xad}, {&(0x7f0000001cc0)=""/102400, 0x19000}, {&(0x7f0000000380)=""/4096, 0x1000}, {&(0x7f0000001380)=""/24, 0x18}, {&(0x7f00000013c0)=""/154, 0x9a}, {&(0x7f0000001480)=""/24, 0x18}], 0x8, 0x10000, 0x4) [ 316.714099][ T8573] batman_adv: Cannot find parent device [ 316.723394][ T8573] batman_adv: batadv0: Adding interface: ip6gretap225 [ 316.731032][ T8573] batman_adv: batadv0: The MTU of interface ip6gretap225 is too small (1434) 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. [ 316.761437][ T8573] batman_adv: batadv0: Not using interface ip6gretap225 (retrying later): interface not active 04:24:05 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcd8, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 316.817270][ T8575] batman_adv: Cannot find parent device 04:24:05 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7c3, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 316.825700][ T8575] batman_adv: batadv0: Adding interface: ip6gretap259 04:24:05 executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) sendfile(r0, r0, &(0x7f0000000000)=0x1ff, 0xff) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r1, 0x0, 0x0, 0x0) [ 316.838632][ T8575] batman_adv: batadv0: The MTU of interface ip6gretap259 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 316.881078][ T8575] batman_adv: batadv0: Not using interface ip6gretap259 (retrying later): interface not active [ 316.902970][ T8584] batman_adv: Cannot find parent device [ 316.911635][ T8584] batman_adv: batadv0: Adding interface: ip6gretap198 [ 316.920693][ T8584] batman_adv: batadv0: The MTU of interface ip6gretap198 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 316.955752][ T8584] batman_adv: batadv0: Not using interface ip6gretap198 (retrying later): interface not active 04:24:05 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d87a, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 316.977597][ T8586] batman_adv: Cannot find parent device [ 316.986226][ T8586] batman_adv: batadv0: Adding interface: ip6gretap226 [ 316.995322][ T8586] batman_adv: batadv0: The MTU of interface ip6gretap226 is too small (1434) 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. [ 317.031099][ T8586] batman_adv: batadv0: Not using interface ip6gretap226 (retrying later): interface not active 04:24:05 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000080)=[{0x86, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') pread64(r0, &(0x7f0000000080)=""/68, 0x44, 0x6) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f00000000c0)) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r1, 0x0, 0x0, 0x0) [ 317.052302][ T8592] batman_adv: Cannot find parent device [ 317.062299][ T8592] batman_adv: batadv0: Adding interface: ip6gretap260 04:24:05 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcd9, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.071206][ T8592] batman_adv: batadv0: The MTU of interface ip6gretap260 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 317.109271][ T8592] batman_adv: batadv0: Not using interface ip6gretap260 (retrying later): interface not active 04:24:05 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x7d, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) [ 317.131760][ T8600] batman_adv: Cannot find parent device [ 317.142179][ T8600] batman_adv: batadv0: Adding interface: ip6gretap199 [ 317.151680][ T8600] batman_adv: batadv0: The MTU of interface ip6gretap199 is too small (1434) 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. [ 317.185745][ T8600] batman_adv: batadv0: Not using interface ip6gretap199 (retrying later): interface not active 04:24:05 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7c4, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:05 executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x100) 04:24:05 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d87b, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.289524][ T8613] batman_adv: Cannot find parent device 04:24:05 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d879, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.300680][ T8613] batman_adv: batadv0: Adding interface: ip6gretap227 [ 317.312899][ T8613] batman_adv: batadv0: The MTU of interface ip6gretap227 is too small (1434) 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. [ 317.346981][ T8613] batman_adv: batadv0: Not using interface ip6gretap227 (retrying later): interface not active 04:24:05 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcda, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.367164][ T8615] batman_adv: Cannot find parent device [ 317.375952][ T8615] batman_adv: batadv0: Adding interface: ip6gretap261 [ 317.384752][ T8615] batman_adv: batadv0: The MTU of interface ip6gretap261 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 317.417046][ T8615] batman_adv: batadv0: Not using interface ip6gretap261 (retrying later): interface not active [ 317.437076][ T8619] batman_adv: Cannot find parent device [ 317.445653][ T8619] batman_adv: batadv0: Adding interface: ip6gretap200 [ 317.455088][ T8619] batman_adv: batadv0: The MTU of interface ip6gretap200 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:06 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d87c, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.491390][ T8619] batman_adv: batadv0: Not using interface ip6gretap200 (retrying later): interface not active [ 317.513267][ T8621] batman_adv: Cannot find parent device [ 317.523701][ T8621] batman_adv: batadv0: Adding interface: ip6gretap36 04:24:06 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7c5, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.532392][ T8621] batman_adv: batadv0: The MTU of interface ip6gretap36 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 317.565741][ T8621] batman_adv: batadv0: Not using interface ip6gretap36 (retrying later): interface not active [ 317.584282][ T8625] batman_adv: Cannot find parent device [ 317.590398][ T8625] batman_adv: batadv0: Adding interface: ip6gretap262 04:24:06 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7c2, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.596274][ T8625] batman_adv: batadv0: The MTU of interface ip6gretap262 is too small (1434) 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. [ 317.620876][ T8625] batman_adv: batadv0: Not using interface ip6gretap262 (retrying later): interface not active [ 317.637526][ T8628] batman_adv: Cannot find parent device [ 317.645794][ T8628] batman_adv: batadv0: Adding interface: ip6gretap228 04:24:06 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcdb, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.654579][ T8628] batman_adv: batadv0: The MTU of interface ip6gretap228 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 317.691092][ T8628] batman_adv: batadv0: Not using interface ip6gretap228 (retrying later): interface not active [ 317.709156][ T8630] batman_adv: Cannot find parent device [ 317.717096][ T8630] batman_adv: batadv0: Adding interface: ip6gretap37 [ 317.725139][ T8630] batman_adv: batadv0: The MTU of interface ip6gretap37 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 317.753653][ T8630] batman_adv: batadv0: Not using interface ip6gretap37 (retrying later): interface not active [ 317.776761][ T8633] batman_adv: Cannot find parent device [ 317.783813][ T8633] batman_adv: batadv0: Adding interface: ip6gretap201 04:24:06 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d87d, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.790202][ T8633] batman_adv: batadv0: The MTU of interface ip6gretap201 is too small (1434) 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. 04:24:06 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7c2, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.824182][ T8633] batman_adv: batadv0: Not using interface ip6gretap201 (retrying later): interface not active [ 317.862750][ T8639] batman_adv: Cannot find parent device [ 317.871536][ T8639] batman_adv: batadv0: Adding interface: ip6gretap263 [ 317.880434][ T8639] batman_adv: batadv0: The MTU of interface ip6gretap263 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 317.912015][ T8639] batman_adv: batadv0: Not using interface ip6gretap263 (retrying later): interface not active 04:24:06 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7c6, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.930860][ T8642] batman_adv: Cannot find parent device [ 317.941230][ T8642] batman_adv: batadv0: Adding interface: ip6gretap38 04:24:06 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcdc, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:06 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x30000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 317.952494][ T8642] batman_adv: batadv0: The MTU of interface ip6gretap38 is too small (1434) 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. [ 317.994692][ T8642] batman_adv: batadv0: Not using interface ip6gretap38 (retrying later): interface not active [ 318.014741][ T8644] batman_adv: Cannot find parent device [ 318.023890][ T8644] batman_adv: batadv0: Adding interface: ip6gretap229 04:24:06 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d877, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 318.033644][ T8644] batman_adv: batadv0: The MTU of interface ip6gretap229 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 318.069270][ T8644] batman_adv: batadv0: Not using interface ip6gretap229 (retrying later): interface not active [ 318.088281][ T8648] batman_adv: Cannot find parent device [ 318.095038][ T8648] batman_adv: batadv0: Adding interface: ip6gretap202 [ 318.102719][ T8648] batman_adv: batadv0: The MTU of interface ip6gretap202 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 318.134433][ T8648] batman_adv: batadv0: Not using interface ip6gretap202 (retrying later): interface not active [ 318.153754][ T8649] batman_adv: Cannot find parent device [ 318.161801][ T8649] batman_adv: batadv0: Adding interface: ip6gretap264 [ 318.170850][ T8649] batman_adv: batadv0: The MTU of interface ip6gretap264 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 318.206128][ T8649] batman_adv: batadv0: Not using interface ip6gretap264 (retrying later): interface not active [ 318.227256][ T8652] batman_adv: Cannot find parent device [ 318.242387][ T8652] batman_adv: batadv0: Adding interface: ip6gretap39 04:24:06 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 318.251400][ T8652] batman_adv: batadv0: The MTU of interface ip6gretap39 is too small (1434) 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. [ 318.284951][ T8652] batman_adv: batadv0: Not using interface ip6gretap39 (retrying later): interface not active 04:24:06 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7c7, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 318.323399][ T8657] batman_adv: Cannot find parent device 04:24:06 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7bf, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 318.332592][ T8657] batman_adv: batadv0: Adding interface: ip6gretap265 04:24:06 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcdd, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 318.341926][ T8657] batman_adv: batadv0: The MTU of interface ip6gretap265 is too small (1434) 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. [ 318.376801][ T8657] batman_adv: batadv0: Not using interface ip6gretap265 (retrying later): interface not active [ 318.401027][ T8663] batman_adv: Cannot find parent device [ 318.409780][ T8663] batman_adv: batadv0: Adding interface: ip6gretap203 [ 318.419637][ T8663] batman_adv: batadv0: The MTU of interface ip6gretap203 is too small (1434) 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. [ 318.453455][ T8663] batman_adv: batadv0: Not using interface ip6gretap203 (retrying later): interface not active [ 318.479844][ T8659] batman_adv: Cannot find parent device [ 318.486995][ T8659] batman_adv: batadv0: Adding interface: ip6gretap40 [ 318.495386][ T8659] batman_adv: batadv0: The MTU of interface ip6gretap40 is too small (1434) 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. [ 318.529053][ T8659] batman_adv: batadv0: Not using interface ip6gretap40 (retrying later): interface not active [ 318.547151][ T8661] batman_adv: Cannot find parent device [ 318.554917][ T8661] batman_adv: batadv0: Adding interface: ip6gretap230 [ 318.563369][ T8661] batman_adv: batadv0: The MTU of interface ip6gretap230 is too small (1434) 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. 04:24:07 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d86d, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 318.595647][ T8661] batman_adv: batadv0: Not using interface ip6gretap230 (retrying later): interface not active [ 318.618618][ T8665] __nla_validate_parse: 11 callbacks suppressed [ 318.618632][ T8665] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 318.641309][ T8669] batman_adv: Cannot find parent device 04:24:07 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x40000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 318.650173][ T8669] batman_adv: batadv0: Adding interface: ip6gretap41 [ 318.659235][ T8669] batman_adv: batadv0: The MTU of interface ip6gretap41 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 318.686587][ T8669] batman_adv: batadv0: Not using interface ip6gretap41 (retrying later): interface not active 04:24:07 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcde, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 318.704287][ T8668] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 318.721324][ T8671] batman_adv: Cannot find parent device [ 318.729048][ T8671] batman_adv: batadv0: Adding interface: ip6gretap266 04:24:07 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 318.736783][ T8671] batman_adv: batadv0: The MTU of interface ip6gretap266 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 318.765916][ T8671] batman_adv: batadv0: Not using interface ip6gretap266 (retrying later): interface not active 04:24:07 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7c7, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 318.784688][ T8673] batman_adv: Cannot find parent device [ 318.793543][ T8673] batman_adv: batadv0: Adding interface: ip6gretap204 04:24:07 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xe0ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 318.801844][ T8673] batman_adv: batadv0: The MTU of interface ip6gretap204 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 318.836141][ T8673] batman_adv: batadv0: Not using interface ip6gretap204 (retrying later): interface not active [ 318.856472][ T8675] batman_adv: Cannot find parent device [ 318.864926][ T8675] batman_adv: batadv0: Adding interface: ip6gretap231 [ 318.873463][ T8675] batman_adv: batadv0: The MTU of interface ip6gretap231 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 318.904847][ T8675] batman_adv: batadv0: Not using interface ip6gretap231 (retrying later): interface not active [ 318.922567][ T8678] batman_adv: Cannot find parent device [ 318.932513][ T8678] batman_adv: batadv0: Adding interface: ip6gretap267 [ 318.941383][ T8678] batman_adv: batadv0: The MTU of interface ip6gretap267 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 318.974506][ T8678] batman_adv: batadv0: Not using interface ip6gretap267 (retrying later): interface not active [ 318.993031][ T8680] batman_adv: Cannot find parent device 04:24:07 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xf0ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 319.003950][ T8680] batman_adv: batadv0: Adding interface: ip6gretap42 [ 319.014329][ T8680] batman_adv: batadv0: The MTU of interface ip6gretap42 is too small (1434) 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. [ 319.056621][ T8680] batman_adv: batadv0: Not using interface ip6gretap42 (retrying later): interface not active [ 319.074695][ T8681] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 319.085960][ T8683] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 319.103998][ T8686] batman_adv: Cannot find parent device 04:24:07 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcdf, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 319.112386][ T8686] batman_adv: batadv0: Adding interface: ip6gretap268 04:24:07 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dccd, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:07 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x40000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 319.121694][ T8686] batman_adv: batadv0: The MTU of interface ip6gretap268 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 319.161256][ T8686] batman_adv: batadv0: Not using interface ip6gretap268 (retrying later): interface not active [ 319.182605][ T8688] batman_adv: Cannot find parent device [ 319.192456][ T8688] batman_adv: batadv0: Adding interface: ip6gretap43 04:24:07 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 319.201876][ T8688] batman_adv: batadv0: The MTU of interface ip6gretap43 is too small (1434) 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. [ 319.233857][ T8688] batman_adv: batadv0: Not using interface ip6gretap43 (retrying later): interface not active [ 319.252978][ T8690] batman_adv: Cannot find parent device [ 319.261764][ T8690] batman_adv: batadv0: Adding interface: ip6gretap205 [ 319.268762][ T8690] batman_adv: batadv0: The MTU of interface ip6gretap205 is too small (1434) 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. [ 319.297096][ T8690] batman_adv: batadv0: Not using interface ip6gretap205 (retrying later): interface not active [ 319.315040][ T8693] batman_adv: Cannot find parent device [ 319.323561][ T8693] batman_adv: batadv0: Adding interface: ip6gretap232 04:24:07 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_dev$audion(&(0x7f0000000140), 0x8, 0x2) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000180)) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='./file0\x00', 0x1, 0x0) r3 = openat$hpet(0xffffff9c, &(0x7f0000000200), 0x103000, 0x0) r4 = syz_genetlink_get_family_id$nl80211(&(0x7f00000002c0), r1) sendmsg$NL80211_CMD_DISASSOCIATE(r3, &(0x7f00000004c0)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000480)={&(0x7f0000000300)={0x168, r4, 0x10, 0x70bd27, 0x25dfdbfd, {{}, {@void, @val={0xc, 0x99, {0xffffff77, 0x72}}}}, [@NL80211_ATTR_IE={0x28, 0x2a, [@cf={0x4, 0x6, {0xd, 0x1, 0xb7b4, 0xff}}, @link_id={0x65, 0x12, {@initial, @device_b}}, @ibss={0x6, 0x2, 0x9}, @perr={0x84, 0x2, {0x81}}]}, @NL80211_ATTR_IE={0xf5, 0x2a, [@random_vendor={0xdd, 0xef, "30fb7dd742bbf395752afdaaafaa42ba1a3ea61a53b74104b30e356c7723da317b99cce5bde44b72c930a86af2ef6f91fd649c1c00b60be7782f888a11107122d89159d766d41a5a89d7036fdb857bd4df6dbaeaf6f7904534c7c31742a035e3762112efb11ea7e6a244a640e839630020638de709d100c6cb9f3207fa500741731a84b509bca4a93ae67b5200f4e2c49c9db744240049018342384766ce8f539ba401644590a0bbfb3b4f847a61085e8701422c62bf8aee0b05a2d59e8bb9ef19dbc464703fed7ab6327f32f8dbd04420c16c852d3cff1b6c1fbf400bfd69fbb5bd8b53c208ba3009f0aea8339b74"}]}, @NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}, @NL80211_ATTR_REASON_CODE={0x6, 0x36, 0x5}, @NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}, @NL80211_ATTR_REASON_CODE={0x6}]}, 0x168}, 0x1, 0x0, 0x0, 0x800}, 0x80) ioctl$AUTOFS_DEV_IOCTL_READY(r2, 0xc0189376, &(0x7f0000000080)={{0x1, 0x1, 0x18, r2, {0xc48}}, './file0/file0\x00'}) r6 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') pread64(r6, &(0x7f0000000080)=""/68, 0x44, 0x6) renameat(r5, &(0x7f00000000c0)='./file0\x00', r6, &(0x7f0000000100)='./file0\x00') pread64(r1, 0x0, 0x0, 0x0) [ 319.332852][ T8693] batman_adv: batadv0: The MTU of interface ip6gretap232 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 319.366589][ T8693] batman_adv: batadv0: Not using interface ip6gretap232 (retrying later): interface not active [ 319.387174][ T8695] batman_adv: Cannot find parent device [ 319.396172][ T8695] batman_adv: batadv0: Adding interface: ip6gretap269 [ 319.404969][ T8695] batman_adv: batadv0: The MTU of interface ip6gretap269 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 319.435921][ T8695] batman_adv: batadv0: Not using interface ip6gretap269 (retrying later): interface not active [ 319.459827][ T8700] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:08 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7ae, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:08 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xf0ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:08 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dce0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 319.543984][ T8704] batman_adv: Cannot find parent device 04:24:08 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 319.576880][ T8704] batman_adv: batadv0: Adding interface: ip6gretap44 [ 319.585439][ T8704] batman_adv: batadv0: The MTU of interface ip6gretap44 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 319.617945][ T8704] batman_adv: batadv0: Not using interface ip6gretap44 (retrying later): interface not active [ 319.635761][ T8706] batman_adv: Cannot find parent device [ 319.642383][ T8706] batman_adv: batadv0: Adding interface: ip6gretap206 [ 319.653943][ T8706] batman_adv: batadv0: The MTU of interface ip6gretap206 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 319.687671][ T8706] batman_adv: batadv0: Not using interface ip6gretap206 (retrying later): interface not active 04:24:08 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc4, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 319.713213][ T8708] batman_adv: Cannot find parent device [ 319.721603][ T8708] batman_adv: batadv0: Adding interface: ip6gretap233 [ 319.729663][ T8708] batman_adv: batadv0: The MTU of interface ip6gretap233 is too small (1434) 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. [ 319.758308][ T8708] batman_adv: batadv0: Not using interface ip6gretap233 (retrying later): interface not active [ 319.781106][ T8710] batman_adv: Cannot find parent device [ 319.788820][ T8710] batman_adv: batadv0: Adding interface: ip6gretap270 [ 319.796382][ T8710] batman_adv: batadv0: The MTU of interface ip6gretap270 is too small (1434) 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. [ 319.822796][ T8710] batman_adv: batadv0: Not using interface ip6gretap270 (retrying later): interface not active [ 319.842604][ T8715] batman_adv: Cannot find parent device [ 319.850804][ T8715] batman_adv: batadv0: Adding interface: ip6gretap45 04:24:08 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dce1, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 319.858694][ T8715] batman_adv: batadv0: The MTU of interface ip6gretap45 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:08 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 319.888952][ T8715] batman_adv: batadv0: Not using interface ip6gretap45 (retrying later): interface not active [ 319.902841][ T8717] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 319.918344][ T8723] batman_adv: Cannot find parent device [ 319.926293][ T8723] batman_adv: batadv0: Adding interface: ip6gretap207 04:24:08 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 319.934016][ T8723] batman_adv: batadv0: The MTU of interface ip6gretap207 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:08 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7ad, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 319.962190][ T8723] batman_adv: batadv0: Not using interface ip6gretap207 (retrying later): interface not active [ 319.981852][ T8725] batman_adv: Cannot find parent device [ 319.992812][ T8725] batman_adv: batadv0: Adding interface: ip6gretap271 [ 320.001836][ T8725] batman_adv: batadv0: The MTU of interface ip6gretap271 is too small (1434) 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. [ 320.036300][ T8725] batman_adv: batadv0: Not using interface ip6gretap271 (retrying later): interface not active [ 320.050868][ T8727] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 320.069236][ T8728] batman_adv: Cannot find parent device [ 320.079790][ T8728] batman_adv: batadv0: Adding interface: ip6gretap234 04:24:08 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:08 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dce2, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 320.089523][ T8728] batman_adv: batadv0: The MTU of interface ip6gretap234 is too small (1434) 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. [ 320.127187][ T8728] batman_adv: batadv0: Not using interface ip6gretap234 (retrying later): interface not active [ 320.145406][ T8730] batman_adv: Cannot find parent device [ 320.155723][ T8730] batman_adv: batadv0: Adding interface: ip6gretap46 [ 320.164399][ T8730] batman_adv: batadv0: The MTU of interface ip6gretap46 is too small (1434) 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. [ 320.194540][ T8730] batman_adv: batadv0: Not using interface ip6gretap46 (retrying later): interface not active [ 320.212828][ T8733] batman_adv: Cannot find parent device [ 320.222059][ T8733] batman_adv: batadv0: Adding interface: ip6gretap208 04:24:08 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcc1, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 320.231472][ T8733] batman_adv: batadv0: The MTU of interface ip6gretap208 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 320.266086][ T8733] batman_adv: batadv0: Not using interface ip6gretap208 (retrying later): interface not active [ 320.284584][ T8735] batman_adv: Cannot find parent device [ 320.292990][ T8735] batman_adv: batadv0: Adding interface: ip6gretap272 [ 320.302741][ T8735] batman_adv: batadv0: The MTU of interface ip6gretap272 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 320.335775][ T8735] batman_adv: batadv0: Not using interface ip6gretap272 (retrying later): interface not active [ 320.350270][ T8736] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 320.369213][ T8738] batman_adv: Cannot find parent device [ 320.378134][ T8738] batman_adv: batadv0: Adding interface: ip6gretap47 04:24:09 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 320.387612][ T8738] batman_adv: batadv0: The MTU of interface ip6gretap47 is too small (1434) 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. [ 320.421133][ T8738] batman_adv: batadv0: Not using interface ip6gretap47 (retrying later): interface not active [ 320.435206][ T8740] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 320.452394][ T8743] batman_adv: Cannot find parent device 04:24:09 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 320.461401][ T8743] batman_adv: batadv0: Adding interface: ip6gretap235 04:24:09 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dce3, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 320.473947][ T8743] batman_adv: batadv0: The MTU of interface ip6gretap235 is too small (1434) 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. [ 320.506735][ T8743] batman_adv: batadv0: Not using interface ip6gretap235 (retrying later): interface not active 04:24:09 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') pread64(r0, &(0x7f0000000080)=""/68, 0x44, 0x6) getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000080)={0x4, 0x23d, 0x8008, 0xdf, 0x2, 0xffff, 0x6, 0x96}, &(0x7f00000000c0)=0x20) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r1 = gettid() ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000100)) tkill(r1, 0x7) r2 = syz_open_procfs(r1, &(0x7f0000000000)='statm\x00') pread64(r2, 0x0, 0x0, 0x0) [ 320.528139][ T8748] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 320.545799][ T8750] batman_adv: Cannot find parent device [ 320.553710][ T8750] batman_adv: batadv0: Adding interface: ip6gretap209 [ 320.562081][ T8750] batman_adv: batadv0: The MTU of interface ip6gretap209 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:09 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 320.590331][ T8750] batman_adv: batadv0: Not using interface ip6gretap209 (retrying later): interface not active [ 320.610796][ T8746] batman_adv: Cannot find parent device [ 320.618338][ T8746] batman_adv: batadv0: Adding interface: ip6gretap273 [ 320.626642][ T8746] batman_adv: batadv0: The MTU of interface ip6gretap273 is too small (1434) 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. [ 320.658981][ T8746] batman_adv: batadv0: Not using interface ip6gretap273 (retrying later): interface not active 04:24:09 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dce4, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:09 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 320.764165][ T8759] batman_adv: Cannot find parent device [ 320.772858][ T8759] batman_adv: batadv0: Adding interface: ip6gretap236 [ 320.781419][ T8759] batman_adv: batadv0: The MTU of interface ip6gretap236 is too small (1434) 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. [ 320.815496][ T8759] batman_adv: batadv0: Not using interface ip6gretap236 (retrying later): interface not active 04:24:09 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') pread64(r0, &(0x7f0000000080)=""/68, 0x44, 0x6) getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000080)={0x4, 0x23d, 0x8008, 0xdf, 0x2, 0xffff, 0x6, 0x96}, &(0x7f00000000c0)=0x20) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r1 = gettid() ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000100)) tkill(r1, 0x7) r2 = syz_open_procfs(r1, &(0x7f0000000000)='statm\x00') pread64(r2, 0x0, 0x0, 0x0) [ 320.834851][ T8762] batman_adv: Cannot find parent device [ 320.843571][ T8762] batman_adv: batadv0: Adding interface: ip6gretap210 [ 320.852720][ T8762] batman_adv: batadv0: The MTU of interface ip6gretap210 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 320.881525][ T8762] batman_adv: batadv0: Not using interface ip6gretap210 (retrying later): interface not active [ 320.902081][ T8763] batman_adv: Cannot find parent device [ 320.910082][ T8763] batman_adv: batadv0: Adding interface: ip6gretap274 [ 320.918132][ T8763] batman_adv: batadv0: The MTU of interface ip6gretap274 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 320.951079][ T8763] batman_adv: batadv0: Not using interface ip6gretap274 (retrying later): interface not active 04:24:09 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') pread64(r0, &(0x7f0000000080)=""/68, 0x44, 0x6) getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000080)={0x4, 0x23d, 0x8008, 0xdf, 0x2, 0xffff, 0x6, 0x96}, &(0x7f00000000c0)=0x20) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r1 = gettid() ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000100)) tkill(r1, 0x7) r2 = syz_open_procfs(r1, &(0x7f0000000000)='statm\x00') pread64(r2, 0x0, 0x0, 0x0) 04:24:09 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dce5, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:09 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:09 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:09 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7a9, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 321.086769][ T8775] batman_adv: Cannot find parent device [ 321.095242][ T8775] batman_adv: batadv0: Adding interface: ip6gretap237 [ 321.104530][ T8775] batman_adv: batadv0: The MTU of interface ip6gretap237 is too small (1434) 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. [ 321.138093][ T8775] batman_adv: batadv0: Not using interface ip6gretap237 (retrying later): interface not active [ 321.167474][ T8778] batman_adv: Cannot find parent device [ 321.179674][ T8778] batman_adv: batadv0: Adding interface: ip6gretap275 [ 321.189327][ T8778] batman_adv: batadv0: The MTU of interface ip6gretap275 is too small (1434) 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. [ 321.223040][ T8778] batman_adv: batadv0: Not using interface ip6gretap275 (retrying later): interface not active [ 321.242569][ T8779] batman_adv: Cannot find parent device [ 321.253667][ T8779] batman_adv: batadv0: Adding interface: ip6gretap211 04:24:09 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 321.264055][ T8779] batman_adv: batadv0: The MTU of interface ip6gretap211 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 321.298289][ T8779] batman_adv: batadv0: Not using interface ip6gretap211 (retrying later): interface not active [ 321.316176][ T8781] batman_adv: Cannot find parent device [ 321.323783][ T8781] batman_adv: batadv0: Adding interface: ip6gretap48 [ 321.332073][ T8781] batman_adv: batadv0: The MTU of interface ip6gretap48 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 321.362041][ T8781] batman_adv: batadv0: Not using interface ip6gretap48 (retrying later): interface not active [ 321.385029][ T8788] batman_adv: Cannot find parent device 04:24:10 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 321.393229][ T8788] batman_adv: batadv0: Adding interface: ip6gretap276 [ 321.403816][ T8788] batman_adv: batadv0: The MTU of interface ip6gretap276 is too small (1434) 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. 04:24:10 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 321.434680][ T8788] batman_adv: batadv0: Not using interface ip6gretap276 (retrying later): interface not active [ 321.460223][ T8791] batman_adv: Cannot find parent device [ 321.469083][ T8791] batman_adv: batadv0: Adding interface: ip6gretap238 [ 321.478791][ T8791] batman_adv: batadv0: The MTU of interface ip6gretap238 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 321.512026][ T8791] batman_adv: batadv0: Not using interface ip6gretap238 (retrying later): interface not active 04:24:10 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dce6, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:10 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 321.547674][ T8794] batman_adv: Cannot find parent device [ 321.557420][ T8794] batman_adv: batadv0: Adding interface: ip6gretap49 [ 321.567180][ T8794] batman_adv: batadv0: The MTU of interface ip6gretap49 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 321.605002][ T8794] batman_adv: batadv0: Not using interface ip6gretap49 (retrying later): interface not active [ 321.628079][ T8796] batman_adv: Cannot find parent device [ 321.639850][ T8796] batman_adv: batadv0: Adding interface: ip6gretap212 04:24:10 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7a8, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 321.648191][ T8796] batman_adv: batadv0: The MTU of interface ip6gretap212 is too small (1434) 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. [ 321.688746][ T8796] batman_adv: batadv0: Not using interface ip6gretap212 (retrying later): interface not active [ 321.706999][ T8798] batman_adv: Cannot find parent device [ 321.714067][ T8798] batman_adv: batadv0: Adding interface: ip6gretap277 [ 321.724067][ T8798] batman_adv: batadv0: The MTU of interface ip6gretap277 is too small (1434) 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. [ 321.757924][ T8798] batman_adv: batadv0: Not using interface ip6gretap277 (retrying later): interface not active [ 321.776849][ T8802] batman_adv: Cannot find parent device [ 321.785641][ T8802] batman_adv: batadv0: Adding interface: ip6gretap50 [ 321.794572][ T8802] batman_adv: batadv0: The MTU of interface ip6gretap50 is too small (1434) 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. [ 321.826181][ T8802] batman_adv: batadv0: Not using interface ip6gretap50 (retrying later): interface not active 04:24:10 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 321.868360][ T8810] batman_adv: Cannot find parent device [ 321.877263][ T8810] batman_adv: batadv0: Adding interface: ip6gretap239 [ 321.886124][ T8810] batman_adv: batadv0: The MTU of interface ip6gretap239 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 321.925962][ T8810] batman_adv: batadv0: Not using interface ip6gretap239 (retrying later): interface not active 04:24:10 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:10 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dce7, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 321.945956][ T8813] batman_adv: Cannot find parent device 04:24:10 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dce6, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 321.956098][ T8813] batman_adv: batadv0: Adding interface: ip6gretap213 [ 321.980475][ T8813] batman_adv: batadv0: The MTU of interface ip6gretap213 is too small (1434) 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. [ 322.014719][ T8813] batman_adv: batadv0: Not using interface ip6gretap213 (retrying later): interface not active [ 322.033299][ T8814] batman_adv: Cannot find parent device [ 322.040638][ T8814] batman_adv: batadv0: Adding interface: ip6gretap278 [ 322.049692][ T8814] batman_adv: batadv0: The MTU of interface ip6gretap278 is too small (1434) 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. 04:24:10 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 322.080884][ T8814] batman_adv: batadv0: Not using interface ip6gretap278 (retrying later): interface not active [ 322.104890][ T8817] batman_adv: Cannot find parent device [ 322.113248][ T8817] batman_adv: batadv0: Adding interface: ip6gretap51 04:24:10 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dce8, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 322.122155][ T8817] batman_adv: batadv0: The MTU of interface ip6gretap51 is too small (1434) 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. [ 322.158129][ T8817] batman_adv: batadv0: Not using interface ip6gretap51 (retrying later): interface not active [ 322.175991][ T8821] batman_adv: Cannot find parent device [ 322.184299][ T8821] batman_adv: batadv0: Adding interface: ip6gretap240 04:24:10 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x8, &(0x7f0000000080)={0x2000000000000224, &(0x7f0000000000)=[{0x7, 0x0, 0x1, 0xc7a}, {0x2, 0x6, 0x6, 0xb33}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip6_mr_vif\x00') r1 = socket$rxrpc(0x21, 0x2, 0x2) sendmmsg$inet(r1, &(0x7f0000001c80)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0) setsockopt$RXRPC_SECURITY_KEY(r1, 0x110, 0x1, 0x0, 0x0) pread64(r1, &(0x7f0000000140)=""/64, 0x40, 0x406) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f00000000c0)) syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x4) [ 322.192820][ T8821] batman_adv: batadv0: The MTU of interface ip6gretap240 is too small (1434) 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. [ 322.224232][ T8821] batman_adv: batadv0: Not using interface ip6gretap240 (retrying later): interface not active [ 322.255725][ T8823] batman_adv: Cannot find parent device [ 322.265904][ T8823] batman_adv: batadv0: Adding interface: ip6gretap214 04:24:10 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 322.276112][ T8823] batman_adv: batadv0: The MTU of interface ip6gretap214 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:10 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') ioctl$RTC_PIE_OFF(r0, 0x7006) fspick(r0, &(0x7f0000000000)='./file0\x00', 0x1) pread64(r0, 0x0, 0x0, 0x0) [ 322.309766][ T8823] batman_adv: batadv0: Not using interface ip6gretap214 (retrying later): interface not active 04:24:10 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 322.374491][ T8832] batman_adv: Cannot find parent device [ 322.383426][ T8832] batman_adv: batadv0: Adding interface: ip6gretap279 [ 322.391221][ T8832] batman_adv: batadv0: The MTU of interface ip6gretap279 is too small (1434) 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. [ 322.422330][ T8832] batman_adv: batadv0: Not using interface ip6gretap279 (retrying later): interface not active 04:24:11 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') ioctl$RTC_PIE_OFF(r0, 0x7006) fspick(r0, &(0x7f0000000000)='./file0\x00', 0x1) pread64(r0, 0x0, 0x0, 0x0) 04:24:11 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dce9, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 322.441112][ T8834] batman_adv: Cannot find parent device [ 322.452374][ T8834] batman_adv: batadv0: Adding interface: ip6gretap241 [ 322.462351][ T8834] batman_adv: batadv0: The MTU of interface ip6gretap241 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 322.504155][ T8834] batman_adv: batadv0: Not using interface ip6gretap241 (retrying later): interface not active [ 322.533046][ T8839] batman_adv: Cannot find parent device 04:24:11 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xd030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 322.544304][ T8839] batman_adv: batadv0: Adding interface: ip6gretap215 [ 322.552534][ T8839] batman_adv: batadv0: The MTU of interface ip6gretap215 is too small (1434) 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. [ 322.585743][ T8839] batman_adv: batadv0: Not using interface ip6gretap215 (retrying later): interface not active 04:24:11 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d7a4, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 322.609496][ T8844] batman_adv: Cannot find parent device [ 322.618101][ T8844] batman_adv: batadv0: Adding interface: ip6gretap280 04:24:11 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 322.626480][ T8844] batman_adv: batadv0: The MTU of interface ip6gretap280 is too small (1434) 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. [ 322.661109][ T8844] batman_adv: batadv0: Not using interface ip6gretap280 (retrying later): interface not active [ 322.678771][ T8846] batman_adv: Cannot find parent device [ 322.687980][ T8846] batman_adv: batadv0: Adding interface: ip6gretap52 [ 322.696478][ T8846] batman_adv: batadv0: The MTU of interface ip6gretap52 is too small (1434) 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. [ 322.733935][ T8846] batman_adv: batadv0: Not using interface ip6gretap52 (retrying later): interface not active 04:24:11 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xe000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 322.763229][ T8851] batman_adv: Cannot find parent device [ 322.773849][ T8851] batman_adv: batadv0: Adding interface: ip6gretap242 04:24:11 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcea, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 322.787893][ T8851] batman_adv: batadv0: The MTU of interface ip6gretap242 is too small (1434) 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. 04:24:11 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xd030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 322.831364][ T8851] batman_adv: batadv0: Not using interface ip6gretap242 (retrying later): interface not active [ 322.854346][ T8858] batman_adv: Cannot find parent device [ 322.863138][ T8858] batman_adv: batadv0: Adding interface: ip6gretap281 [ 322.871460][ T8858] batman_adv: batadv0: The MTU of interface ip6gretap281 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 322.903387][ T8858] batman_adv: batadv0: Not using interface ip6gretap281 (retrying later): interface not active [ 322.923662][ T8860] batman_adv: Cannot find parent device [ 322.932714][ T8860] batman_adv: batadv0: Adding interface: ip6gretap216 [ 322.941142][ T8860] batman_adv: batadv0: The MTU of interface ip6gretap216 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 322.973813][ T8860] batman_adv: batadv0: Not using interface ip6gretap216 (retrying later): interface not active 04:24:11 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xe030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 323.003128][ T8863] batman_adv: Cannot find parent device [ 323.010888][ T8863] batman_adv: batadv0: Adding interface: ip6gretap53 04:24:11 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 323.019899][ T8863] batman_adv: batadv0: The MTU of interface ip6gretap53 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 323.053715][ T8863] batman_adv: batadv0: Not using interface ip6gretap53 (retrying later): interface not active [ 323.088170][ T8871] batman_adv: Cannot find parent device [ 323.096787][ T8871] batman_adv: batadv0: Adding interface: ip6gretap243 [ 323.105391][ T8871] batman_adv: batadv0: The MTU of interface ip6gretap243 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 323.139067][ T8871] batman_adv: batadv0: Not using interface ip6gretap243 (retrying later): interface not active [ 323.160937][ T8869] batman_adv: Cannot find parent device [ 323.170208][ T8869] batman_adv: batadv0: Adding interface: ip6gretap282 04:24:11 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 323.179167][ T8869] batman_adv: batadv0: The MTU of interface ip6gretap282 is too small (1434) 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. [ 323.212739][ T8869] batman_adv: batadv0: Not using interface ip6gretap282 (retrying later): interface not active [ 323.255150][ T8878] batman_adv: Cannot find parent device 04:24:11 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dceb, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 323.264708][ T8878] batman_adv: batadv0: Adding interface: ip6gretap54 04:24:11 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:11 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xf000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 323.276144][ T8878] batman_adv: batadv0: The MTU of interface ip6gretap54 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 323.317754][ T8878] batman_adv: batadv0: Not using interface ip6gretap54 (retrying later): interface not active [ 323.337944][ T8882] batman_adv: Cannot find parent device [ 323.346581][ T8882] batman_adv: batadv0: Adding interface: ip6gretap244 [ 323.354991][ T8882] batman_adv: batadv0: The MTU of interface ip6gretap244 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 323.386480][ T8882] batman_adv: batadv0: Not using interface ip6gretap244 (retrying later): interface not active 04:24:12 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcb8, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 323.407614][ T8884] batman_adv: Cannot find parent device [ 323.415158][ T8884] batman_adv: batadv0: Adding interface: ip6gretap217 [ 323.423758][ T8884] batman_adv: batadv0: The MTU of interface ip6gretap217 is too small (1434) 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. [ 323.455756][ T8884] batman_adv: batadv0: Not using interface ip6gretap217 (retrying later): interface not active [ 323.476699][ T8886] batman_adv: Cannot find parent device [ 323.485850][ T8886] batman_adv: batadv0: Adding interface: ip6gretap283 [ 323.494870][ T8886] batman_adv: batadv0: The MTU of interface ip6gretap283 is too small (1434) 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. [ 323.529922][ T8886] batman_adv: batadv0: Not using interface ip6gretap283 (retrying later): interface not active [ 323.555553][ T8889] batman_adv: Cannot find parent device [ 323.565664][ T8889] batman_adv: batadv0: Adding interface: ip6gretap55 [ 323.574069][ T8889] batman_adv: batadv0: The MTU of interface ip6gretap55 is too small (1434) 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. 04:24:12 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:12 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x10000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 323.633201][ T8889] batman_adv: batadv0: Not using interface ip6gretap55 (retrying later): interface not active [ 323.649284][ T8893] __nla_validate_parse: 13 callbacks suppressed [ 323.649303][ T8893] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 323.685492][ T8897] batman_adv: Cannot find parent device [ 323.694957][ T8897] batman_adv: batadv0: Adding interface: ip6gretap245 04:24:12 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r3 = getpgrp(0x0) r4 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r4, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r5) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r5}}]}) getresgid(&(0x7f0000000680), &(0x7f00000006c0)=0x0, &(0x7f0000000700)) r7 = gettid() tkill(r7, 0x7) recvmmsg$unix(0xffffffffffffffff, &(0x7f0000003300)=[{{&(0x7f0000000740), 0x6e, &(0x7f0000000880)=[{&(0x7f00000007c0)=""/47, 0x2f}, {&(0x7f0000000800)=""/77, 0x4d}], 0x2, &(0x7f00000008c0)=[@cred={{0x18, 0x1, 0x2, {0x0, 0x0}}}], 0x18}}, {{&(0x7f0000000900), 0x6e, &(0x7f0000001b40)=[{&(0x7f0000000980)=""/248, 0xf8}, {&(0x7f0000000a80)=""/135, 0x87}, {&(0x7f0000000b40)=""/4096, 0x1000}], 0x3}}, {{&(0x7f0000001b80)=@abs, 0x6e, &(0x7f0000001d80)=[{&(0x7f0000001c00)=""/124, 0x7c}, {&(0x7f0000001c80)=""/171, 0xab}, {&(0x7f0000001d40)=""/7, 0x7}], 0x3, &(0x7f0000001dc0)=[@cred={{0x18}}, @rights={{0x18, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x28, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}], 0x58}}, {{&(0x7f0000001e40)=@abs, 0x6e, &(0x7f0000002040)=[{&(0x7f0000001ec0)=""/65, 0x41}, {&(0x7f0000001f40)=""/211, 0xd3}], 0x2, &(0x7f0000002080)=[@cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @rights={{0x1c, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x10, 0x1, 0x1, [0xffffffffffffffff]}}], 0xa4}}, {{&(0x7f0000002140), 0x6e, &(0x7f0000003240)=[{&(0x7f00000021c0)=""/76, 0x4c}, {&(0x7f0000002240)=""/4096, 0x1000}], 0x2, &(0x7f0000003280)=[@rights={{0x20, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @cred={{0x18}}, @cred={{0x18}}], 0x50}}], 0x5, 0x10102, &(0x7f00000033c0)) r9 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r9, 0x1, 0x11, &(0x7f00000003c0)={0x0, 0x0, 0x0}, &(0x7f0000000440)=0xc) syz_mount_image$tmpfs(&(0x7f0000000000), &(0x7f0000000140)='./file0\x00', 0x0, 0x0, 0x0, 0x24b6422, &(0x7f0000000500)={[{@gid={'gid', 0x3d, r10}}]}) sendmsg$unix(0xffffffffffffffff, &(0x7f0000003480)={&(0x7f0000000100)=@abs={0x1, 0x0, 0x4e21}, 0x6e, &(0x7f0000000500)=[{&(0x7f0000000180)="afceb3ca6371eea5ff6c0937e9da98b0f730e70467b4511529ddba4eaae9779db86e679bb1b2e8", 0x27}, {&(0x7f00000001c0)="17a52f3d460bac8526270f3bb8f6a1db90f7a740f384aed8adce2c5894eb786a312ec7a714ba878be94e165e4f4e7b8a5b3e6511e4597ed35d60100bee968fbdb8c84eb5ee55025335", 0x49}, {&(0x7f0000000280)="50b7641933a09939fc07f55089432d39833d96951489c199ede300e7576b953fcd1ca5d8af6c43058174646dba9d8089ae896c4033a47c742862a0b4c7ceac0bd85f7a", 0x43}, {&(0x7f0000000300)="8e9b654d4cb4014ba94bdf42465f4c6576ab0fe4f5267711477b67f3783b75a33bbbff176a65b9557bf6ec73fde1fe9ed47178ce14c729c163d560a1c69af7f21431d8d02c36d820988d96d85f480c6253d88ce8aecd8093d3ea36d6f8520b700f749346a267ca62fabef18d38a36f4a2c9bdc85a4dd2a4fe6b8202f2b2922b8f5a69ce5b6cee246fbf18411a52c0b2f2efe3be3dac74a405965cb220d58a69af09ee61768e3ceb77fb5529abcb6a0d33e55561cd3270ed949c6350a9cc921c5daff39a941176e0cfff62adb158cf23986cf8c7db035a5b719b231", 0xdb}, {&(0x7f0000000400)="4f2eda7351540bdb901d7a2296c76a2e1dbde263f9fbd23cea6c0ff181d3bcf86ba0c3f1822ff4e5ee1b1f59182864d7408817bcedd968f016646e9862dfde7dda0f3b5e04964053a68777979567945322986dce797335f15ac91f5f184e8059f70d4eebb32bd208cd3e78189f413495f6aedbbc41c0b31881b717a0ed72b00e714de6190600ce0e2464dfb27a97d90de100cab8bbd60dd10d3c07e034d84fa4151fb3a7be00bca65c50cf41bb2191f716f37f5be51b2473a34568c2b6d58257418432", 0xc3}], 0x5, &(0x7f0000003400)=[@cred={{0x18, 0x1, 0x2, {0x0, 0xffffffffffffffff}}}, @cred={{0x18, 0x1, 0x2, {0x0, r1, r2}}}, @cred={{0x18, 0x1, 0x2, {r3, r5, r6}}}, @cred={{0x18, 0x1, 0x2, {r7, r8, r10}}}], 0x60, 0x4050}, 0x8040) 04:24:12 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcec, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 323.703900][ T8897] batman_adv: batadv0: The MTU of interface ip6gretap245 is too small (1434) 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. [ 323.745067][ T8897] batman_adv: batadv0: Not using interface ip6gretap245 (retrying later): interface not active [ 323.768857][ T8903] batman_adv: Cannot find parent device [ 323.776852][ T8903] batman_adv: batadv0: Adding interface: ip6gretap218 [ 323.785055][ T8903] batman_adv: batadv0: The MTU of interface ip6gretap218 is too small (1434) 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. [ 323.799060][ T8901] loop2: detected capacity change from 0 to 3 [ 323.815409][ T8903] batman_adv: batadv0: Not using interface ip6gretap218 (retrying later): interface not active [ 323.821684][ T8899] batman_adv: Cannot find parent device [ 323.845024][ T8899] batman_adv: batadv0: Adding interface: ip6gretap284 [ 323.853245][ T8899] batman_adv: batadv0: The MTU of interface ip6gretap284 is too small (1434) 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. [ 323.885220][ T8899] batman_adv: batadv0: Not using interface ip6gretap284 (retrying later): interface not active 04:24:12 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xd030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 323.905045][ T8905] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:12 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dced, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 323.963395][ T8909] batman_adv: Cannot find parent device 04:24:12 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x12000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 323.971559][ T8909] batman_adv: batadv0: Adding interface: ip6gretap246 [ 323.987436][ T8909] batman_adv: batadv0: The MTU of interface ip6gretap246 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 324.018140][ T8909] batman_adv: batadv0: Not using interface ip6gretap246 (retrying later): interface not active [ 324.037757][ T8912] batman_adv: Cannot find parent device [ 324.046198][ T8912] batman_adv: batadv0: Adding interface: ip6gretap285 [ 324.054779][ T8912] batman_adv: batadv0: The MTU of interface ip6gretap285 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 324.087125][ T8912] batman_adv: batadv0: Not using interface ip6gretap285 (retrying later): interface not active [ 324.101569][ T8915] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 324.118331][ T8913] batman_adv: Cannot find parent device [ 324.129150][ T8913] batman_adv: batadv0: Adding interface: ip6gretap219 04:24:12 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x17010000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 324.140129][ T8913] batman_adv: batadv0: The MTU of interface ip6gretap219 is too small (1434) 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. [ 324.176182][ T8913] batman_adv: batadv0: Not using interface ip6gretap219 (retrying later): interface not active 04:24:12 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r3 = getpgrp(0x0) r4 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r4, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r5) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r5}}]}) getresgid(&(0x7f0000000680), &(0x7f00000006c0)=0x0, &(0x7f0000000700)) r7 = gettid() tkill(r7, 0x7) recvmmsg$unix(0xffffffffffffffff, &(0x7f0000003300)=[{{&(0x7f0000000740), 0x6e, &(0x7f0000000880)=[{&(0x7f00000007c0)=""/47, 0x2f}, {&(0x7f0000000800)=""/77, 0x4d}], 0x2, &(0x7f00000008c0)=[@cred={{0x18, 0x1, 0x2, {0x0, 0x0}}}], 0x18}}, {{&(0x7f0000000900), 0x6e, &(0x7f0000001b40)=[{&(0x7f0000000980)=""/248, 0xf8}, {&(0x7f0000000a80)=""/135, 0x87}, {&(0x7f0000000b40)=""/4096, 0x1000}], 0x3}}, {{&(0x7f0000001b80)=@abs, 0x6e, &(0x7f0000001d80)=[{&(0x7f0000001c00)=""/124, 0x7c}, {&(0x7f0000001c80)=""/171, 0xab}, {&(0x7f0000001d40)=""/7, 0x7}], 0x3, &(0x7f0000001dc0)=[@cred={{0x18}}, @rights={{0x18, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x28, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}], 0x58}}, {{&(0x7f0000001e40)=@abs, 0x6e, &(0x7f0000002040)=[{&(0x7f0000001ec0)=""/65, 0x41}, {&(0x7f0000001f40)=""/211, 0xd3}], 0x2, &(0x7f0000002080)=[@cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @rights={{0x1c, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x10, 0x1, 0x1, [0xffffffffffffffff]}}], 0xa4}}, {{&(0x7f0000002140), 0x6e, &(0x7f0000003240)=[{&(0x7f00000021c0)=""/76, 0x4c}, {&(0x7f0000002240)=""/4096, 0x1000}], 0x2, &(0x7f0000003280)=[@rights={{0x20, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @cred={{0x18}}, @cred={{0x18}}], 0x50}}], 0x5, 0x10102, &(0x7f00000033c0)) r9 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r9, 0x1, 0x11, &(0x7f00000003c0)={0x0, 0x0, 0x0}, &(0x7f0000000440)=0xc) syz_mount_image$tmpfs(&(0x7f0000000000), &(0x7f0000000140)='./file0\x00', 0x0, 0x0, 0x0, 0x24b6422, &(0x7f0000000500)={[{@gid={'gid', 0x3d, r10}}]}) sendmsg$unix(0xffffffffffffffff, &(0x7f0000003480)={&(0x7f0000000100)=@abs={0x1, 0x0, 0x4e21}, 0x6e, &(0x7f0000000500)=[{&(0x7f0000000180)="afceb3ca6371eea5ff6c0937e9da98b0f730e70467b4511529ddba4eaae9779db86e679bb1b2e8", 0x27}, {&(0x7f00000001c0)="17a52f3d460bac8526270f3bb8f6a1db90f7a740f384aed8adce2c5894eb786a312ec7a714ba878be94e165e4f4e7b8a5b3e6511e4597ed35d60100bee968fbdb8c84eb5ee55025335", 0x49}, {&(0x7f0000000280)="50b7641933a09939fc07f55089432d39833d96951489c199ede300e7576b953fcd1ca5d8af6c43058174646dba9d8089ae896c4033a47c742862a0b4c7ceac0bd85f7a", 0x43}, {&(0x7f0000000300)="8e9b654d4cb4014ba94bdf42465f4c6576ab0fe4f5267711477b67f3783b75a33bbbff176a65b9557bf6ec73fde1fe9ed47178ce14c729c163d560a1c69af7f21431d8d02c36d820988d96d85f480c6253d88ce8aecd8093d3ea36d6f8520b700f749346a267ca62fabef18d38a36f4a2c9bdc85a4dd2a4fe6b8202f2b2922b8f5a69ce5b6cee246fbf18411a52c0b2f2efe3be3dac74a405965cb220d58a69af09ee61768e3ceb77fb5529abcb6a0d33e55561cd3270ed949c6350a9cc921c5daff39a941176e0cfff62adb158cf23986cf8c7db035a5b719b231", 0xdb}, {&(0x7f0000000400)="4f2eda7351540bdb901d7a2296c76a2e1dbde263f9fbd23cea6c0ff181d3bcf86ba0c3f1822ff4e5ee1b1f59182864d7408817bcedd968f016646e9862dfde7dda0f3b5e04964053a68777979567945322986dce797335f15ac91f5f184e8059f70d4eebb32bd208cd3e78189f413495f6aedbbc41c0b31881b717a0ed72b00e714de6190600ce0e2464dfb27a97d90de100cab8bbd60dd10d3c07e034d84fa4151fb3a7be00bca65c50cf41bb2191f716f37f5be51b2473a34568c2b6d58257418432", 0xc3}], 0x5, &(0x7f0000003400)=[@cred={{0x18, 0x1, 0x2, {0x0, 0xffffffffffffffff}}}, @cred={{0x18, 0x1, 0x2, {0x0, r1, r2}}}, @cred={{0x18, 0x1, 0x2, {r3, r5, r6}}}, @cred={{0x18, 0x1, 0x2, {r7, r8, r10}}}], 0x60, 0x4050}, 0x8040) 04:24:12 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xe000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 324.222418][ T8921] batman_adv: Cannot find parent device [ 324.231339][ T8921] batman_adv: batadv0: Adding interface: ip6gretap286 [ 324.239754][ T8921] batman_adv: batadv0: The MTU of interface ip6gretap286 is too small (1434) 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. [ 324.270940][ T8921] batman_adv: batadv0: Not using interface ip6gretap286 (retrying later): interface not active [ 324.300842][ T8928] batman_adv: Cannot find parent device [ 324.310149][ T8928] batman_adv: batadv0: Adding interface: ip6gretap247 [ 324.316433][ T8926] loop2: detected capacity change from 0 to 3 04:24:12 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcee, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 324.319303][ T8928] batman_adv: batadv0: The MTU of interface ip6gretap247 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:12 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x18030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 324.362397][ T8928] batman_adv: batadv0: Not using interface ip6gretap247 (retrying later): interface not active [ 324.397721][ T8932] batman_adv: Cannot find parent device [ 324.407828][ T8932] batman_adv: batadv0: Adding interface: ip6gretap220 [ 324.416953][ T8932] batman_adv: batadv0: The MTU of interface ip6gretap220 is too small (1434) 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. [ 324.453799][ T8932] batman_adv: batadv0: Not using interface ip6gretap220 (retrying later): interface not active 04:24:13 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r3 = getpgrp(0x0) r4 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r4, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r5) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r5}}]}) getresgid(&(0x7f0000000680), &(0x7f00000006c0)=0x0, &(0x7f0000000700)) r7 = gettid() tkill(r7, 0x7) recvmmsg$unix(0xffffffffffffffff, &(0x7f0000003300)=[{{&(0x7f0000000740), 0x6e, &(0x7f0000000880)=[{&(0x7f00000007c0)=""/47, 0x2f}, {&(0x7f0000000800)=""/77, 0x4d}], 0x2, &(0x7f00000008c0)=[@cred={{0x18, 0x1, 0x2, {0x0, 0x0}}}], 0x18}}, {{&(0x7f0000000900), 0x6e, &(0x7f0000001b40)=[{&(0x7f0000000980)=""/248, 0xf8}, {&(0x7f0000000a80)=""/135, 0x87}, {&(0x7f0000000b40)=""/4096, 0x1000}], 0x3}}, {{&(0x7f0000001b80)=@abs, 0x6e, &(0x7f0000001d80)=[{&(0x7f0000001c00)=""/124, 0x7c}, {&(0x7f0000001c80)=""/171, 0xab}, {&(0x7f0000001d40)=""/7, 0x7}], 0x3, &(0x7f0000001dc0)=[@cred={{0x18}}, @rights={{0x18, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x28, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}], 0x58}}, {{&(0x7f0000001e40)=@abs, 0x6e, &(0x7f0000002040)=[{&(0x7f0000001ec0)=""/65, 0x41}, {&(0x7f0000001f40)=""/211, 0xd3}], 0x2, &(0x7f0000002080)=[@cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @rights={{0x1c, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x10, 0x1, 0x1, [0xffffffffffffffff]}}], 0xa4}}, {{&(0x7f0000002140), 0x6e, &(0x7f0000003240)=[{&(0x7f00000021c0)=""/76, 0x4c}, {&(0x7f0000002240)=""/4096, 0x1000}], 0x2, &(0x7f0000003280)=[@rights={{0x20, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @cred={{0x18}}, @cred={{0x18}}], 0x50}}], 0x5, 0x10102, &(0x7f00000033c0)) r9 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r9, 0x1, 0x11, &(0x7f00000003c0)={0x0, 0x0, 0x0}, &(0x7f0000000440)=0xc) syz_mount_image$tmpfs(&(0x7f0000000000), &(0x7f0000000140)='./file0\x00', 0x0, 0x0, 0x0, 0x24b6422, &(0x7f0000000500)={[{@gid={'gid', 0x3d, r10}}]}) sendmsg$unix(0xffffffffffffffff, &(0x7f0000003480)={&(0x7f0000000100)=@abs={0x1, 0x0, 0x4e21}, 0x6e, &(0x7f0000000500)=[{&(0x7f0000000180)="afceb3ca6371eea5ff6c0937e9da98b0f730e70467b4511529ddba4eaae9779db86e679bb1b2e8", 0x27}, {&(0x7f00000001c0)="17a52f3d460bac8526270f3bb8f6a1db90f7a740f384aed8adce2c5894eb786a312ec7a714ba878be94e165e4f4e7b8a5b3e6511e4597ed35d60100bee968fbdb8c84eb5ee55025335", 0x49}, {&(0x7f0000000280)="50b7641933a09939fc07f55089432d39833d96951489c199ede300e7576b953fcd1ca5d8af6c43058174646dba9d8089ae896c4033a47c742862a0b4c7ceac0bd85f7a", 0x43}, {&(0x7f0000000300)="8e9b654d4cb4014ba94bdf42465f4c6576ab0fe4f5267711477b67f3783b75a33bbbff176a65b9557bf6ec73fde1fe9ed47178ce14c729c163d560a1c69af7f21431d8d02c36d820988d96d85f480c6253d88ce8aecd8093d3ea36d6f8520b700f749346a267ca62fabef18d38a36f4a2c9bdc85a4dd2a4fe6b8202f2b2922b8f5a69ce5b6cee246fbf18411a52c0b2f2efe3be3dac74a405965cb220d58a69af09ee61768e3ceb77fb5529abcb6a0d33e55561cd3270ed949c6350a9cc921c5daff39a941176e0cfff62adb158cf23986cf8c7db035a5b719b231", 0xdb}, {&(0x7f0000000400)="4f2eda7351540bdb901d7a2296c76a2e1dbde263f9fbd23cea6c0ff181d3bcf86ba0c3f1822ff4e5ee1b1f59182864d7408817bcedd968f016646e9862dfde7dda0f3b5e04964053a68777979567945322986dce797335f15ac91f5f184e8059f70d4eebb32bd208cd3e78189f413495f6aedbbc41c0b31881b717a0ed72b00e714de6190600ce0e2464dfb27a97d90de100cab8bbd60dd10d3c07e034d84fa4151fb3a7be00bca65c50cf41bb2191f716f37f5be51b2473a34568c2b6d58257418432", 0xc3}], 0x5, &(0x7f0000003400)=[@cred={{0x18, 0x1, 0x2, {0x0, 0xffffffffffffffff}}}, @cred={{0x18, 0x1, 0x2, {0x0, r1, r2}}}, @cred={{0x18, 0x1, 0x2, {r3, r5, r6}}}, @cred={{0x18, 0x1, 0x2, {r7, r8, r10}}}], 0x60, 0x4050}, 0x8040) [ 324.474620][ T8936] batman_adv: Cannot find parent device 04:24:13 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xe030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 324.485046][ T8936] batman_adv: batadv0: Adding interface: ip6gretap287 [ 324.494737][ T8936] batman_adv: batadv0: The MTU of interface ip6gretap287 is too small (1434) 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. [ 324.531588][ T8936] batman_adv: batadv0: Not using interface ip6gretap287 (retrying later): interface not active [ 324.574632][ T8943] loop2: detected capacity change from 0 to 3 [ 324.588411][ T8945] batman_adv: Cannot find parent device [ 324.598332][ T8945] batman_adv: batadv0: Adding interface: ip6gretap248 [ 324.606870][ T8945] batman_adv: batadv0: The MTU of interface ip6gretap248 is too small (1434) 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. [ 324.640073][ T8945] batman_adv: batadv0: Not using interface ip6gretap248 (retrying later): interface not active 04:24:13 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcef, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:13 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x190c0000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 324.673661][ T8948] batman_adv: Cannot find parent device [ 324.683629][ T8948] batman_adv: batadv0: Adding interface: ip6gretap221 04:24:13 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x10000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 324.692861][ T8948] batman_adv: batadv0: The MTU of interface ip6gretap221 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 324.729052][ T8948] batman_adv: batadv0: Not using interface ip6gretap221 (retrying later): interface not active 04:24:13 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r3) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r3}}]}) getresgid(&(0x7f0000000680), &(0x7f00000006c0), &(0x7f0000000700)) r4 = gettid() tkill(r4, 0x7) recvmmsg$unix(0xffffffffffffffff, &(0x7f0000003300)=[{{&(0x7f0000000740), 0x6e, &(0x7f0000000880)=[{&(0x7f00000007c0)=""/47, 0x2f}, {&(0x7f0000000800)=""/77, 0x4d}], 0x2, &(0x7f00000008c0)=[@cred={{0x18}}], 0x18}}, {{&(0x7f0000000900), 0x6e, &(0x7f0000001b40)=[{&(0x7f0000000980)=""/248, 0xf8}, {&(0x7f0000000a80)=""/135, 0x87}, {&(0x7f0000000b40)=""/4096, 0x1000}], 0x3}}, {{&(0x7f0000001b80)=@abs, 0x6e, &(0x7f0000001d80)=[{&(0x7f0000001c00)=""/124, 0x7c}, {&(0x7f0000001c80)=""/171, 0xab}, {&(0x7f0000001d40)=""/7, 0x7}], 0x3, &(0x7f0000001dc0)=[@cred={{0x18}}, @rights={{0x18, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x28, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}], 0x58}}, {{&(0x7f0000001e40)=@abs, 0x6e, &(0x7f0000002040)=[{&(0x7f0000001ec0)=""/65, 0x41}, {&(0x7f0000001f40)=""/211, 0xd3}], 0x2, &(0x7f0000002080)=[@cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @rights={{0x1c, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x10, 0x1, 0x1, [0xffffffffffffffff]}}], 0xa4}}, {{&(0x7f0000002140), 0x6e, &(0x7f0000003240)=[{&(0x7f00000021c0)=""/76, 0x4c}, {&(0x7f0000002240)=""/4096, 0x1000}], 0x2, &(0x7f0000003280)=[@rights={{0x20, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @cred={{0x18}}, @cred={{0x18}}], 0x50}}], 0x5, 0x10102, &(0x7f00000033c0)) r5 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r5, 0x1, 0x11, &(0x7f00000003c0)={0x0, 0x0, 0x0}, &(0x7f0000000440)=0xc) syz_mount_image$tmpfs(&(0x7f0000000000), &(0x7f0000000140)='./file0\x00', 0x0, 0x0, 0x0, 0x24b6422, &(0x7f0000000500)={[{@gid={'gid', 0x3d, r6}}]}) [ 324.753267][ T8950] batman_adv: Cannot find parent device [ 324.762826][ T8950] batman_adv: batadv0: Adding interface: ip6gretap288 [ 324.771810][ T8950] batman_adv: batadv0: The MTU of interface ip6gretap288 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 324.810254][ T8950] batman_adv: batadv0: Not using interface ip6gretap288 (retrying later): interface not active [ 324.831801][ T8953] batman_adv: Cannot find parent device 04:24:13 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 324.842948][ T8953] batman_adv: batadv0: Adding interface: ip6gretap249 [ 324.854858][ T8953] batman_adv: batadv0: The MTU of interface ip6gretap249 is too small (1434) 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. 04:24:13 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1f000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 324.890840][ T8953] batman_adv: batadv0: Not using interface ip6gretap249 (retrying later): interface not active [ 324.910666][ T8956] batman_adv: Cannot find parent device [ 324.919525][ T8956] batman_adv: batadv0: Adding interface: ip6gretap222 [ 324.928164][ T8956] batman_adv: batadv0: The MTU of interface ip6gretap222 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 324.962865][ T8956] batman_adv: batadv0: Not using interface ip6gretap222 (retrying later): interface not active [ 324.983780][ T8962] batman_adv: Cannot find parent device [ 324.991921][ T8962] batman_adv: batadv0: Adding interface: ip6gretap289 [ 324.997333][ T8961] loop2: detected capacity change from 0 to 3 04:24:13 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x10030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:13 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x20000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 325.000588][ T8962] batman_adv: batadv0: The MTU of interface ip6gretap289 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 325.000625][ T8962] batman_adv: batadv0: Not using interface ip6gretap289 (retrying later): interface not active [ 325.059063][ T8966] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 325.091277][ T8969] batman_adv: Cannot find parent device [ 325.099199][ T8969] batman_adv: batadv0: Adding interface: ip6gretap290 04:24:13 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf1, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 325.107674][ T8969] batman_adv: batadv0: The MTU of interface ip6gretap290 is too small (1434) 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. [ 325.141103][ T8969] batman_adv: batadv0: Not using interface ip6gretap290 (retrying later): interface not active [ 325.173100][ T8967] batman_adv: Cannot find parent device [ 325.181183][ T8967] batman_adv: batadv0: Adding interface: ip6gretap250 04:24:13 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x21000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:13 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r3) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r3}}]}) getresgid(&(0x7f0000000680), &(0x7f00000006c0), &(0x7f0000000700)) r4 = gettid() tkill(r4, 0x7) recvmmsg$unix(0xffffffffffffffff, &(0x7f0000003300)=[{{&(0x7f0000000740), 0x6e, &(0x7f0000000880)=[{&(0x7f00000007c0)=""/47, 0x2f}, {&(0x7f0000000800)=""/77, 0x4d}], 0x2, &(0x7f00000008c0)=[@cred={{0x18}}], 0x18}}, {{&(0x7f0000000900), 0x6e, &(0x7f0000001b40)=[{&(0x7f0000000980)=""/248, 0xf8}, {&(0x7f0000000a80)=""/135, 0x87}, {&(0x7f0000000b40)=""/4096, 0x1000}], 0x3}}, {{&(0x7f0000001b80)=@abs, 0x6e, &(0x7f0000001d80)=[{&(0x7f0000001c00)=""/124, 0x7c}, {&(0x7f0000001c80)=""/171, 0xab}, {&(0x7f0000001d40)=""/7, 0x7}], 0x3, &(0x7f0000001dc0)=[@cred={{0x18}}, @rights={{0x18, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x28, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}], 0x58}}, {{&(0x7f0000001e40)=@abs, 0x6e, &(0x7f0000002040)=[{&(0x7f0000001ec0)=""/65, 0x41}, {&(0x7f0000001f40)=""/211, 0xd3}], 0x2, &(0x7f0000002080)=[@cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @rights={{0x1c, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x10, 0x1, 0x1, [0xffffffffffffffff]}}], 0xa4}}, {{&(0x7f0000002140), 0x6e, &(0x7f0000003240)=[{&(0x7f00000021c0)=""/76, 0x4c}, {&(0x7f0000002240)=""/4096, 0x1000}], 0x2, &(0x7f0000003280)=[@rights={{0x20, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @cred={{0x18}}, @cred={{0x18}}], 0x50}}], 0x5, 0x10102, &(0x7f00000033c0)) r5 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r5, 0x1, 0x11, &(0x7f00000003c0), &(0x7f0000000440)=0xc) [ 325.190079][ T8967] batman_adv: batadv0: The MTU of interface ip6gretap250 is too small (1434) 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. [ 325.223105][ T8967] batman_adv: batadv0: Not using interface ip6gretap250 (retrying later): interface not active [ 325.240431][ T8972] batman_adv: Cannot find parent device [ 325.248014][ T8972] batman_adv: batadv0: Adding interface: ip6gretap223 [ 325.256996][ T8972] batman_adv: batadv0: The MTU of interface ip6gretap223 is too small (1434) 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. [ 325.288554][ T8972] batman_adv: batadv0: Not using interface ip6gretap223 (retrying later): interface not active [ 325.306274][ T8975] batman_adv: Cannot find parent device [ 325.315004][ T8975] batman_adv: batadv0: Adding interface: ip6gretap291 [ 325.324644][ T8975] batman_adv: batadv0: The MTU of interface ip6gretap291 is too small (1434) 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. [ 325.345692][ T8977] loop2: detected capacity change from 0 to 3 [ 325.361178][ T8975] batman_adv: batadv0: Not using interface ip6gretap291 (retrying later): interface not active 04:24:14 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x28d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:14 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x12000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:14 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf2, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:14 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r3) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r3}}]}) getresgid(&(0x7f0000000680), &(0x7f00000006c0), &(0x7f0000000700)) r4 = gettid() tkill(r4, 0x7) recvmmsg$unix(0xffffffffffffffff, &(0x7f0000003300)=[{{&(0x7f0000000740), 0x6e, &(0x7f0000000880)=[{&(0x7f00000007c0)=""/47, 0x2f}, {&(0x7f0000000800)=""/77, 0x4d}], 0x2, &(0x7f00000008c0)=[@cred={{0x18}}], 0x18}}, {{&(0x7f0000000900), 0x6e, &(0x7f0000001b40)=[{&(0x7f0000000980)=""/248, 0xf8}, {&(0x7f0000000a80)=""/135, 0x87}, {&(0x7f0000000b40)=""/4096, 0x1000}], 0x3}}, {{&(0x7f0000001b80)=@abs, 0x6e, &(0x7f0000001d80)=[{&(0x7f0000001c00)=""/124, 0x7c}, {&(0x7f0000001c80)=""/171, 0xab}, {&(0x7f0000001d40)=""/7, 0x7}], 0x3, &(0x7f0000001dc0)=[@cred={{0x18}}, @rights={{0x18, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x28, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}], 0x58}}, {{&(0x7f0000001e40)=@abs, 0x6e, &(0x7f0000002040)=[{&(0x7f0000001ec0)=""/65, 0x41}, {&(0x7f0000001f40)=""/211, 0xd3}], 0x2, &(0x7f0000002080)=[@cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @rights={{0x1c, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x10, 0x1, 0x1, [0xffffffffffffffff]}}], 0xa4}}, {{&(0x7f0000002140), 0x6e, &(0x7f0000003240)=[{&(0x7f00000021c0)=""/76, 0x4c}, {&(0x7f0000002240)=""/4096, 0x1000}], 0x2, &(0x7f0000003280)=[@rights={{0x20, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @cred={{0x18}}, @cred={{0x18}}], 0x50}}], 0x5, 0x10102, &(0x7f00000033c0)) socket$inet_udplite(0x2, 0x2, 0x88) [ 325.465473][ T8987] batman_adv: Cannot find parent device [ 325.473872][ T8987] batman_adv: batadv0: Adding interface: ip6gretap224 [ 325.482313][ T8987] batman_adv: batadv0: The MTU of interface ip6gretap224 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 325.514411][ T8987] batman_adv: batadv0: Not using interface ip6gretap224 (retrying later): interface not active [ 325.535092][ T8990] batman_adv: Cannot find parent device [ 325.544758][ T8990] batman_adv: batadv0: Adding interface: ip6gretap251 [ 325.553190][ T8990] batman_adv: batadv0: The MTU of interface ip6gretap251 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 325.586187][ T8990] batman_adv: batadv0: Not using interface ip6gretap251 (retrying later): interface not active [ 325.606060][ T8993] batman_adv: Cannot find parent device [ 325.611974][ T8992] loop2: detected capacity change from 0 to 3 [ 325.614047][ T8995] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 325.633607][ T8998] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:14 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x29d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:14 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r3) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r3}}]}) getresgid(&(0x7f0000000680), &(0x7f00000006c0), &(0x7f0000000700)) r4 = gettid() tkill(r4, 0x7) recvmmsg$unix(0xffffffffffffffff, &(0x7f0000003300)=[{{&(0x7f0000000740), 0x6e, &(0x7f0000000880)=[{&(0x7f00000007c0)=""/47, 0x2f}, {&(0x7f0000000800)=""/77, 0x4d}], 0x2, &(0x7f00000008c0)=[@cred={{0x18}}], 0x18}}, {{&(0x7f0000000900), 0x6e, &(0x7f0000001b40)=[{&(0x7f0000000980)=""/248, 0xf8}, {&(0x7f0000000a80)=""/135, 0x87}, {&(0x7f0000000b40)=""/4096, 0x1000}], 0x3}}, {{&(0x7f0000001b80)=@abs, 0x6e, &(0x7f0000001d80)=[{&(0x7f0000001c00)=""/124, 0x7c}, {&(0x7f0000001c80)=""/171, 0xab}, {&(0x7f0000001d40)=""/7, 0x7}], 0x3, &(0x7f0000001dc0)=[@cred={{0x18}}, @rights={{0x18, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x28, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}], 0x58}}, {{&(0x7f0000001e40)=@abs, 0x6e, &(0x7f0000002040)=[{&(0x7f0000001ec0)=""/65, 0x41}, {&(0x7f0000001f40)=""/211, 0xd3}], 0x2, &(0x7f0000002080)=[@cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @cred={{0x18}}, @rights={{0x1c, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x10, 0x1, 0x1, [0xffffffffffffffff]}}], 0xa4}}, {{&(0x7f0000002140), 0x6e, &(0x7f0000003240)=[{&(0x7f00000021c0)=""/76, 0x4c}, {&(0x7f0000002240)=""/4096, 0x1000}], 0x2, &(0x7f0000003280)=[@rights={{0x20, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @cred={{0x18}}, @cred={{0x18}}], 0x50}}], 0x5, 0x10102, &(0x7f00000033c0)) 04:24:14 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf3, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:14 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x190c0000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 325.741335][ T9007] loop2: detected capacity change from 0 to 3 [ 325.745571][ T9006] batman_adv: Cannot find parent device [ 325.757796][ T9006] batman_adv: batadv0: Adding interface: ip6gretap293 [ 325.766897][ T9006] batman_adv: batadv0: The MTU of interface ip6gretap293 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 325.800735][ T9006] batman_adv: batadv0: Not using interface ip6gretap293 (retrying later): interface not active [ 325.826664][ T9009] batman_adv: Cannot find parent device [ 325.837093][ T9009] batman_adv: batadv0: Adding interface: ip6gretap225 04:24:14 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2a030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 325.847166][ T9009] batman_adv: batadv0: The MTU of interface ip6gretap225 is too small (1434) 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. [ 325.886816][ T9009] batman_adv: batadv0: Not using interface ip6gretap225 (retrying later): interface not active 04:24:14 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r3) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r3}}]}) getresgid(&(0x7f0000000680), &(0x7f00000006c0), &(0x7f0000000700)) r4 = gettid() tkill(r4, 0x7) [ 325.912958][ T9011] batman_adv: Cannot find parent device [ 325.921493][ T9011] batman_adv: batadv0: Adding interface: ip6gretap252 [ 325.929929][ T9011] batman_adv: batadv0: The MTU of interface ip6gretap252 is too small (1434) 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. [ 325.962606][ T9011] batman_adv: batadv0: Not using interface ip6gretap252 (retrying later): interface not active [ 325.980212][ T9015] batman_adv: Cannot find parent device [ 325.991862][ T9015] batman_adv: batadv0: Adding interface: ip6gretap294 [ 326.000463][ T9015] batman_adv: batadv0: The MTU of interface ip6gretap294 is too small (1434) 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. [ 326.034359][ T9015] batman_adv: batadv0: Not using interface ip6gretap294 (retrying later): interface not active [ 326.049938][ T9017] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 326.059258][ T9021] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:14 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf4, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 326.080748][ T9022] loop2: detected capacity change from 0 to 3 [ 326.112535][ T9025] batman_adv: Cannot find parent device [ 326.120630][ T9025] batman_adv: batadv0: Adding interface: ip6gretap226 [ 326.128447][ T9025] batman_adv: batadv0: The MTU of interface ip6gretap226 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 326.156222][ T9025] batman_adv: batadv0: Not using interface ip6gretap226 (retrying later): interface not active 04:24:14 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1f000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:14 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r3) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r3}}]}) getresgid(&(0x7f0000000680), &(0x7f00000006c0), &(0x7f0000000700)) gettid() 04:24:14 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2ad80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 326.195676][ T9026] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 326.212198][ T9029] batman_adv: Cannot find parent device [ 326.220375][ T9029] batman_adv: batadv0: Adding interface: ip6gretap253 [ 326.228981][ T9029] batman_adv: batadv0: The MTU of interface ip6gretap253 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 326.259779][ T9029] batman_adv: batadv0: Not using interface ip6gretap253 (retrying later): interface not active 04:24:14 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf5, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 326.277124][ T9030] batman_adv: Cannot find parent device [ 326.281362][ T9032] loop2: detected capacity change from 0 to 3 [ 326.286229][ T9030] batman_adv: batadv0: Adding interface: ip6gretap295 [ 326.301741][ T9030] batman_adv: batadv0: The MTU of interface ip6gretap295 is too small (1434) 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. [ 326.333616][ T9030] batman_adv: batadv0: Not using interface ip6gretap295 (retrying later): interface not active [ 326.348432][ T9035] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 326.386805][ T9039] batman_adv: Cannot find parent device [ 326.395698][ T9039] batman_adv: batadv0: Adding interface: ip6gretap227 04:24:15 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r3) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r3}}]}) getresgid(&(0x7f0000000680), &(0x7f00000006c0), &(0x7f0000000700)) 04:24:15 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x20000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:15 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2bd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 326.404909][ T9039] batman_adv: batadv0: The MTU of interface ip6gretap227 is too small (1434) 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. [ 326.472262][ T9039] batman_adv: batadv0: Not using interface ip6gretap227 (retrying later): interface not active [ 326.514974][ T9042] batman_adv: Cannot find parent device [ 326.524443][ T9042] batman_adv: batadv0: Adding interface: ip6gretap254 [ 326.532774][ T9048] loop2: detected capacity change from 0 to 3 [ 326.534728][ T9042] batman_adv: batadv0: The MTU of interface ip6gretap254 is too small (1434) 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. [ 326.584866][ T9042] batman_adv: batadv0: Not using interface ip6gretap254 (retrying later): interface not active 04:24:15 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf6, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 326.607623][ T9045] batman_adv: Cannot find parent device [ 326.617715][ T9045] batman_adv: batadv0: Adding interface: ip6gretap296 [ 326.631869][ T9045] batman_adv: batadv0: The MTU of interface ip6gretap296 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:15 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r3) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r3}}]}) [ 326.667606][ T9045] batman_adv: batadv0: Not using interface ip6gretap296 (retrying later): interface not active [ 326.695964][ T9050] batman_adv: Cannot find parent device 04:24:15 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2c010000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 326.705187][ T9050] batman_adv: batadv0: Adding interface: ip6gretap228 [ 326.714594][ T9050] batman_adv: batadv0: The MTU of interface ip6gretap228 is too small (1434) 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. [ 326.745810][ T9050] batman_adv: batadv0: Not using interface ip6gretap228 (retrying later): interface not active [ 326.776149][ T9053] batman_adv: Cannot find parent device 04:24:15 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2cd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 326.785399][ T9053] batman_adv: batadv0: Adding interface: ip6gretap255 [ 326.794978][ T9053] batman_adv: batadv0: The MTU of interface ip6gretap255 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 326.826960][ T9053] batman_adv: batadv0: Not using interface ip6gretap255 (retrying later): interface not active [ 326.864195][ T9056] batman_adv: Cannot find parent device [ 326.874178][ T9056] batman_adv: batadv0: Adding interface: ip6gretap297 [ 326.883255][ T9056] batman_adv: batadv0: The MTU of interface ip6gretap297 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:15 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf7, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 326.919394][ T9056] batman_adv: batadv0: Not using interface ip6gretap297 (retrying later): interface not active [ 326.960478][ T9058] loop2: detected capacity change from 0 to 3 [ 326.978362][ T9064] batman_adv: Cannot find parent device 04:24:15 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3f000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 326.987114][ T9064] batman_adv: batadv0: Adding interface: ip6gretap229 04:24:15 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2dd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 326.996423][ T9064] batman_adv: batadv0: The MTU of interface ip6gretap229 is too small (1434) 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. [ 327.033727][ T9064] batman_adv: batadv0: Not using interface ip6gretap229 (retrying later): interface not active [ 327.052676][ T9066] batman_adv: Cannot find parent device [ 327.059939][ T9066] batman_adv: batadv0: Adding interface: ip6gretap256 [ 327.073278][ T9066] batman_adv: batadv0: The MTU of interface ip6gretap256 is too small (1434) 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. [ 327.108024][ T9066] batman_adv: batadv0: Not using interface ip6gretap256 (retrying later): interface not active [ 327.130761][ T9068] batman_adv: Cannot find parent device [ 327.137901][ T9068] batman_adv: batadv0: Adding interface: ip6gretap298 [ 327.145114][ T9068] batman_adv: batadv0: The MTU of interface ip6gretap298 is too small (1434) 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. [ 327.174071][ T9068] batman_adv: batadv0: Not using interface ip6gretap298 (retrying later): interface not active 04:24:15 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf8, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:15 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x40000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:15 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r3) 04:24:15 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2ed80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 327.346431][ T9079] batman_adv: Cannot find parent device [ 327.358224][ T9079] batman_adv: batadv0: Adding interface: ip6gretap257 [ 327.364771][ T9080] loop2: detected capacity change from 0 to 3 [ 327.369915][ T9079] batman_adv: batadv0: The MTU of interface ip6gretap257 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 327.369951][ T9079] batman_adv: batadv0: Not using interface ip6gretap257 (retrying later): interface not active [ 327.454442][ T9083] batman_adv: Cannot find parent device [ 327.468960][ T9083] batman_adv: batadv0: Adding interface: ip6gretap299 04:24:16 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x42020000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 327.479915][ T9083] batman_adv: batadv0: The MTU of interface ip6gretap299 is too small (1434) 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. [ 327.522702][ T9083] batman_adv: batadv0: Not using interface ip6gretap299 (retrying later): interface not active [ 327.548436][ T9085] batman_adv: Cannot find parent device [ 327.558376][ T9085] batman_adv: batadv0: Adding interface: ip6gretap230 [ 327.569485][ T9085] batman_adv: batadv0: The MTU of interface ip6gretap230 is too small (1434) 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. [ 327.615268][ T9085] batman_adv: batadv0: Not using interface ip6gretap230 (retrying later): interface not active 04:24:16 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2fd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 327.664593][ T9089] batman_adv: Cannot find parent device 04:24:16 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf9, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 327.675404][ T9089] batman_adv: batadv0: Adding interface: ip6gretap258 [ 327.686259][ T9089] batman_adv: batadv0: The MTU of interface ip6gretap258 is too small (1434) 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. [ 327.726104][ T9089] batman_adv: batadv0: Not using interface ip6gretap258 (retrying later): interface not active [ 327.751919][ T9092] batman_adv: Cannot find parent device [ 327.761300][ T9092] batman_adv: batadv0: Adding interface: ip6gretap300 04:24:16 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000240), &(0x7f0000000280)=0x5) [ 327.771302][ T9092] batman_adv: batadv0: The MTU of interface ip6gretap300 is too small (1434) 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. [ 327.827293][ T9092] batman_adv: batadv0: Not using interface ip6gretap300 (retrying later): interface not active [ 327.846429][ T9096] loop2: detected capacity change from 0 to 3 [ 327.846956][ T9094] batman_adv: Cannot find parent device [ 327.870872][ T9094] batman_adv: batadv0: Adding interface: ip6gretap231 [ 327.880854][ T9094] batman_adv: batadv0: The MTU of interface ip6gretap231 is too small (1434) 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. [ 327.920130][ T9094] batman_adv: batadv0: Not using interface ip6gretap231 (retrying later): interface not active 04:24:16 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x30d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:16 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x48000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:16 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcfa, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:16 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) socket$inet_udplite(0x2, 0x2, 0x88) [ 328.028874][ T9103] batman_adv: Cannot find parent device [ 328.038344][ T9103] batman_adv: batadv0: Adding interface: ip6gretap301 [ 328.047711][ T9103] batman_adv: batadv0: The MTU of interface ip6gretap301 is too small (1434) 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. [ 328.084379][ T9103] batman_adv: batadv0: Not using interface ip6gretap301 (retrying later): interface not active [ 328.115753][ T9105] batman_adv: Cannot find parent device [ 328.117448][ T9109] loop2: detected capacity change from 0 to 3 [ 328.124086][ T9105] batman_adv: batadv0: Adding interface: ip6gretap259 [ 328.141072][ T9105] batman_adv: batadv0: The MTU of interface ip6gretap259 is too small (1434) 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. [ 328.175930][ T9105] batman_adv: batadv0: Not using interface ip6gretap259 (retrying later): interface not active 04:24:16 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x31d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 328.196448][ T9107] batman_adv: Cannot find parent device [ 328.205888][ T9107] batman_adv: batadv0: Adding interface: ip6gretap232 [ 328.215843][ T9107] batman_adv: batadv0: The MTU of interface ip6gretap232 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 328.253904][ T9107] batman_adv: batadv0: Not using interface ip6gretap232 (retrying later): interface not active [ 328.275867][ T9114] batman_adv: Cannot find parent device [ 328.359201][ T9114] batman_adv: batadv0: Adding interface: ip6gretap302 [ 328.368769][ T9114] batman_adv: batadv0: The MTU of interface ip6gretap302 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 328.403585][ T9114] batman_adv: batadv0: Not using interface ip6gretap302 (retrying later): interface not active 04:24:17 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4a000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:17 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x32d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 328.454329][ T9119] batman_adv: Cannot find parent device [ 328.465308][ T9119] batman_adv: batadv0: Adding interface: ip6gretap260 [ 328.473768][ T9119] batman_adv: batadv0: The MTU of interface ip6gretap260 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 328.509862][ T9119] batman_adv: batadv0: Not using interface ip6gretap260 (retrying later): interface not active 04:24:17 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcfb, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:17 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) getpgrp(0x0) [ 328.550746][ T9122] batman_adv: Cannot find parent device [ 328.560405][ T9122] batman_adv: batadv0: Adding interface: ip6gretap303 [ 328.569039][ T9122] batman_adv: batadv0: The MTU of interface ip6gretap303 is too small (1434) 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. [ 328.607722][ T9122] batman_adv: batadv0: Not using interface ip6gretap303 (retrying later): interface not active [ 328.637097][ T9123] batman_adv: Cannot find parent device [ 328.646523][ T9123] batman_adv: batadv0: Adding interface: ip6gretap233 04:24:17 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4c000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 328.655916][ T9123] batman_adv: batadv0: The MTU of interface ip6gretap233 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:17 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x33d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 328.691859][ T9123] batman_adv: batadv0: Not using interface ip6gretap233 (retrying later): interface not active [ 328.718944][ T9127] loop2: detected capacity change from 0 to 3 [ 328.744527][ T9135] __nla_validate_parse: 7 callbacks suppressed [ 328.744545][ T9135] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 328.775386][ T9139] batman_adv: Cannot find parent device [ 328.784508][ T9139] batman_adv: batadv0: Adding interface: ip6gretap304 [ 328.793865][ T9139] batman_adv: batadv0: The MTU of interface ip6gretap304 is too small (1434) 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. 04:24:17 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) stat(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)) [ 328.831169][ T9139] batman_adv: batadv0: Not using interface ip6gretap304 (retrying later): interface not active 04:24:17 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcfc, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 328.860899][ T9138] batman_adv: Cannot find parent device [ 328.875203][ T9138] batman_adv: batadv0: Adding interface: ip6gretap261 04:24:17 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x34d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 328.885219][ T9138] batman_adv: batadv0: The MTU of interface ip6gretap261 is too small (1434) 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. [ 328.926367][ T9138] batman_adv: batadv0: Not using interface ip6gretap261 (retrying later): interface not active [ 328.942905][ T9144] batman_adv: Cannot find parent device [ 328.952171][ T9144] batman_adv: batadv0: Adding interface: ip6gretap234 [ 328.959578][ T9144] batman_adv: batadv0: The MTU of interface ip6gretap234 is too small (1434) 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. [ 328.993899][ T9144] batman_adv: batadv0: Not using interface ip6gretap234 (retrying later): interface not active [ 329.009565][ T9145] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 329.035835][ T9147] batman_adv: Cannot find parent device [ 329.043573][ T9147] batman_adv: batadv0: Adding interface: ip6gretap305 [ 329.047495][ T9150] loop2: detected capacity change from 0 to 3 04:24:17 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5c000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 329.051832][ T9147] batman_adv: batadv0: The MTU of interface ip6gretap305 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 329.088885][ T9147] batman_adv: batadv0: Not using interface ip6gretap305 (retrying later): interface not active [ 329.119908][ T9153] batman_adv: Cannot find parent device 04:24:17 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x35d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 329.130152][ T9153] batman_adv: batadv0: Adding interface: ip6gretap262 04:24:17 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcfd, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 329.151569][ T9153] batman_adv: batadv0: The MTU of interface ip6gretap262 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 329.183285][ T9153] batman_adv: batadv0: Not using interface ip6gretap262 (retrying later): interface not active [ 329.204462][ T9156] batman_adv: Cannot find parent device [ 329.216002][ T9156] batman_adv: batadv0: Adding interface: ip6gretap306 04:24:17 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) syz_mount_image$udf(&(0x7f0000000140), &(0x7f0000000200)='./file0\x00', 0x1, 0x4, &(0x7f0000001680)=[{&(0x7f0000000340)="5eb1dca91d1ea0d1b247ef1c882cdbe2e9a0e03a5588d0149ae3ee1ef93d4be5140341a7b798767aba87bd1b2b1f732d851e8ff396321101e80c233590d9e03ab306892960acbef154018f2e846a58ae7210031d9bbbd23dea75b30027d8c96a6f40126f24a3802243db487ed697a09237c41572c4c3da9564ff4d558ad495460a6218db31e77d059927fb8516ad78a357fc4b249870f918da132bc915cf750970bdafa45c57c544ee17287a02dd35e15640137a2ea85eca6f177d566fe0b091cd879311a0df96a958", 0xc9}, {&(0x7f0000000440)="1da912a2415fdb3032984718928f7116db81ea026580ad567554986778e07906255e1cbd5126a32bc118e670cd09761e147205bf6b211340d9997ee78457cbfaae6b8a922793e719d8d7ab6f4bf2408f1b1b52c52034ac518536e40547aa8f71c175e8b22b6d1c0971b7a50fcbc1a38620ddd348f950d1a45b970da05c", 0x7d, 0x2}, {&(0x7f00000004c0)="e64da80fa23b7b648c78e24a3fd050526ff7265c84cc4c8c85528b8ea9a2316602c2aa60c96d9babfa44e4f95306e5f8af34d3a94b9c092b78b14a9b55986bfaf5e7387956d25a891e84a50d29e47d60a73f43b1af32ad2db0abd478171beac54d5887983aa3cc03a90fc613fc175a56bb6612c3e238fec875dfd6754375e985bbcb2a17c560dc2687c33a750fe080e098316b77d36204a75d19b2e6b53de7f45fe2bda2d91c82954f", 0xa9, 0x7}, {&(0x7f0000000680)="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", 0x7e0}], 0x1418, &(0x7f00000005c0)={[{@mode={'mode', 0x3d, 0x2}}, {@gid_forget}, {@unhide}, {@gid}], [{@appraise_type}, {@smackfsfloor={'smackfsfloor', 0x3d, '+p}@@\xad{!!#\\:\\/$\xfd'}}, {@permit_directio}, {@uid_gt={'uid>', r1}}]}) [ 329.225708][ T9156] batman_adv: batadv0: The MTU of interface ip6gretap306 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 329.254885][ T9156] batman_adv: batadv0: Not using interface ip6gretap306 (retrying later): interface not active [ 329.267374][ T9158] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 329.287360][ T9159] batman_adv: Cannot find parent device [ 329.297916][ T9159] batman_adv: batadv0: Adding interface: ip6gretap235 04:24:17 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x60000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 329.308356][ T9159] batman_adv: batadv0: The MTU of interface ip6gretap235 is too small (1434) 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. [ 329.343427][ T9159] batman_adv: batadv0: Not using interface ip6gretap235 (retrying later): interface not active 04:24:18 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x36d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 329.372397][ T9164] batman_adv: Cannot find parent device [ 329.381298][ T9162] loop2: detected capacity change from 0 to 3 [ 329.381964][ T9164] batman_adv: batadv0: Adding interface: ip6gretap263 [ 329.397676][ T9164] batman_adv: batadv0: The MTU of interface ip6gretap263 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 329.431311][ T9164] batman_adv: batadv0: Not using interface ip6gretap263 (retrying later): interface not active [ 329.446929][ T9165] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 329.469350][ T9167] batman_adv: Cannot find parent device 04:24:18 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r1) [ 329.477800][ T9167] batman_adv: batadv0: Adding interface: ip6gretap307 04:24:18 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcfe, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 329.487143][ T9167] batman_adv: batadv0: The MTU of interface ip6gretap307 is too small (1434) 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. [ 329.526541][ T9167] batman_adv: batadv0: Not using interface ip6gretap307 (retrying later): interface not active [ 329.543002][ T9169] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 329.564521][ T9171] batman_adv: Cannot find parent device [ 329.576160][ T9171] batman_adv: batadv0: Adding interface: ip6gretap236 04:24:18 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x37d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:18 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x61020000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 329.587197][ T9171] batman_adv: batadv0: The MTU of interface ip6gretap236 is too small (1434) 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. [ 329.627775][ T9171] batman_adv: batadv0: Not using interface ip6gretap236 (retrying later): interface not active [ 329.652413][ T9175] batman_adv: Cannot find parent device [ 329.660682][ T9175] batman_adv: batadv0: Adding interface: ip6gretap308 [ 329.672055][ T9175] batman_adv: batadv0: The MTU of interface ip6gretap308 is too small (1434) 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. [ 329.710748][ T9175] batman_adv: batadv0: Not using interface ip6gretap308 (retrying later): interface not active [ 329.732206][ T9177] batman_adv: Cannot find parent device [ 329.747142][ T9177] batman_adv: batadv0: Adding interface: ip6gretap264 [ 329.757327][ T9177] batman_adv: batadv0: The MTU of interface ip6gretap264 is too small (1434) 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. [ 329.792631][ T9177] batman_adv: batadv0: Not using interface ip6gretap264 (retrying later): interface not active 04:24:18 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x38d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:18 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 329.835569][ T9182] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:18 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') pread64(r0, 0x0, 0x0, 0x0) setreuid(0x0, 0x0) 04:24:18 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x65580000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 329.889937][ T9184] batman_adv: Cannot find parent device [ 329.898637][ T9184] batman_adv: batadv0: Adding interface: ip6gretap237 [ 329.906573][ T9184] batman_adv: batadv0: The MTU of interface ip6gretap237 is too small (1434) 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. [ 329.940776][ T9184] batman_adv: batadv0: Not using interface ip6gretap237 (retrying later): interface not active [ 329.973211][ T9189] batman_adv: Cannot find parent device [ 329.991304][ T9189] batman_adv: batadv0: Adding interface: ip6gretap265 04:24:18 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) syz_open_procfs(0x0, &(0x7f0000000040)='net/psched\x00') setreuid(0x0, 0x0) [ 330.000607][ T9189] batman_adv: batadv0: The MTU of interface ip6gretap265 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 330.035355][ T9189] batman_adv: batadv0: Not using interface ip6gretap265 (retrying later): interface not active [ 330.054735][ T9187] batman_adv: Cannot find parent device [ 330.064736][ T9187] batman_adv: batadv0: Adding interface: ip6gretap309 [ 330.074953][ T9187] batman_adv: batadv0: The MTU of interface ip6gretap309 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:18 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) setreuid(0x0, 0x0) [ 330.109782][ T9187] batman_adv: batadv0: Not using interface ip6gretap309 (retrying later): interface not active 04:24:18 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dd00, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 330.124354][ T9195] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:18 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x68000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:18 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x39d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:18 executing program 2: setreuid(0x0, 0x0) [ 330.233933][ T9201] batman_adv: Cannot find parent device [ 330.242740][ T9201] batman_adv: batadv0: Adding interface: ip6gretap238 [ 330.252283][ T9201] batman_adv: batadv0: The MTU of interface ip6gretap238 is too small (1434) 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. [ 330.288297][ T9201] batman_adv: batadv0: Not using interface ip6gretap238 (retrying later): interface not active [ 330.306284][ T9203] batman_adv: Cannot find parent device 04:24:18 executing program 2: setreuid(0x0, 0x0) [ 330.316377][ T9203] batman_adv: batadv0: Adding interface: ip6gretap266 [ 330.327133][ T9203] batman_adv: batadv0: The MTU of interface ip6gretap266 is too small (1434) 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. [ 330.361445][ T9203] batman_adv: batadv0: Not using interface ip6gretap266 (retrying later): interface not active [ 330.388469][ T9207] batman_adv: Cannot find parent device 04:24:19 executing program 2: setreuid(0x0, 0x0) [ 330.399641][ T9207] batman_adv: batadv0: Adding interface: ip6gretap310 [ 330.409905][ T9207] batman_adv: batadv0: The MTU of interface ip6gretap310 is too small (1434) 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. [ 330.453533][ T9207] batman_adv: batadv0: Not using interface ip6gretap310 (retrying later): interface not active 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, 0x0) setreuid(0x0, 0x0) [ 330.471838][ T9209] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 330.485677][ T9212] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:19 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dd01, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:19 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6c000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 330.541349][ T9218] batman_adv: Cannot find parent device 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, 0x0) setreuid(0x0, 0x0) [ 330.560453][ T9218] batman_adv: batadv0: Adding interface: ip6gretap239 [ 330.570530][ T9218] batman_adv: batadv0: The MTU of interface ip6gretap239 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:19 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3ad80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 330.604292][ T9218] batman_adv: batadv0: Not using interface ip6gretap239 (retrying later): interface not active [ 330.623309][ T9221] batman_adv: Cannot find parent device [ 330.632342][ T9221] batman_adv: batadv0: Adding interface: ip6gretap267 [ 330.641718][ T9221] batman_adv: batadv0: The MTU of interface ip6gretap267 is too small (1434) 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. 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, 0x0) setreuid(0x0, 0x0) [ 330.674811][ T9221] batman_adv: batadv0: Not using interface ip6gretap267 (retrying later): interface not active [ 330.693510][ T9225] batman_adv: Cannot find parent device 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x0, 0x0}) setreuid(0x0, 0x0) [ 330.701099][ T9225] batman_adv: batadv0: Adding interface: ip6gretap311 [ 330.709114][ T3696] Bluetooth: hci0: command 0x0406 tx timeout [ 330.709137][ T1674] Bluetooth: hci2: command 0x0406 tx timeout [ 330.709193][ T1674] Bluetooth: hci3: command 0x0406 tx timeout [ 330.710929][ T9225] batman_adv: batadv0: The MTU of interface ip6gretap311 is too small (1434) 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. [ 330.721027][ T3696] Bluetooth: hci1: command 0x0406 tx timeout [ 330.726251][ T9225] batman_adv: batadv0: Not using interface ip6gretap311 (retrying later): interface not active [ 330.729192][ T9226] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x0, 0x0}) setreuid(0x0, 0x0) 04:24:19 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dd02, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:19 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3bd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:19 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x74000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x0, 0x0}) setreuid(0x0, 0x0) [ 330.920455][ T9242] batman_adv: Cannot find parent device 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x0, &(0x7f0000000040)}) setreuid(0x0, 0x0) [ 330.929001][ T9242] batman_adv: batadv0: Adding interface: ip6gretap312 [ 330.937541][ T9242] batman_adv: batadv0: The MTU of interface ip6gretap312 is too small (1434) 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. 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x0, &(0x7f0000000040)}) setreuid(0x0, 0x0) [ 330.972016][ T9242] batman_adv: batadv0: Not using interface ip6gretap312 (retrying later): interface not active [ 330.992588][ T9241] batman_adv: Cannot find parent device [ 331.001500][ T9241] batman_adv: batadv0: Adding interface: ip6gretap268 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x0, &(0x7f0000000040)}) setreuid(0x0, 0x0) [ 331.010198][ T9241] batman_adv: batadv0: The MTU of interface ip6gretap268 is too small (1434) 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. [ 331.044159][ T9241] batman_adv: batadv0: Not using interface ip6gretap268 (retrying later): interface not active [ 331.066282][ T9238] batman_adv: Cannot find parent device [ 331.075440][ T9238] batman_adv: batadv0: Adding interface: ip6gretap240 [ 331.085001][ T9238] batman_adv: batadv0: The MTU of interface ip6gretap240 is too small (1434) 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. 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x0, 0x0, 0x0, 0x7fff0000}]}) setreuid(0x0, 0x0) [ 331.121214][ T9238] batman_adv: batadv0: Not using interface ip6gretap240 (retrying later): interface not active 04:24:19 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dd03, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:19 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3cd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:19 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x74010000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x0, 0x0, 0x0, 0x7fff0000}]}) setreuid(0x0, 0x0) [ 331.228045][ T9259] batman_adv: Cannot find parent device [ 331.236405][ T9259] batman_adv: batadv0: Adding interface: ip6gretap269 [ 331.245007][ T9259] batman_adv: batadv0: The MTU of interface ip6gretap269 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 331.280983][ T9259] batman_adv: batadv0: Not using interface ip6gretap269 (retrying later): interface not active 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x0, 0x0, 0x0, 0x7fff0000}]}) setreuid(0x0, 0x0) [ 331.301440][ T9261] batman_adv: Cannot find parent device [ 331.309047][ T9261] batman_adv: batadv0: Adding interface: ip6gretap241 [ 331.316601][ T9261] batman_adv: batadv0: The MTU of interface ip6gretap241 is too small (1434) 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. [ 331.345467][ T9261] batman_adv: batadv0: Not using interface ip6gretap241 (retrying later): interface not active 04:24:19 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6}]}) setreuid(0x0, 0x0) [ 331.364421][ T9256] batman_adv: Cannot find parent device [ 331.372673][ T9256] batman_adv: batadv0: Adding interface: ip6gretap313 [ 331.381471][ T9256] batman_adv: batadv0: The MTU of interface ip6gretap313 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 331.412479][ T9256] batman_adv: batadv0: Not using interface ip6gretap313 (retrying later): interface not active [ 331.445546][ T37] kauditd_printk_skb: 57 callbacks suppressed [ 331.445566][ T37] audit: type=1326 audit(1636259060.061:576): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=9267 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x0 04:24:20 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x75d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 331.502845][ T9272] batman_adv: Cannot find parent device 04:24:20 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3dd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:20 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dd04, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 331.511704][ T9272] batman_adv: batadv0: Adding interface: ip6gretap270 [ 331.520655][ T9272] batman_adv: batadv0: The MTU of interface ip6gretap270 is too small (1434) 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. [ 331.554869][ T9272] batman_adv: batadv0: Not using interface ip6gretap270 (retrying later): interface not active [ 331.599742][ T9275] batman_adv: Cannot find parent device 04:24:20 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x76d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 331.608861][ T9275] batman_adv: batadv0: Adding interface: ip6gretap242 [ 331.617414][ T9275] batman_adv: batadv0: The MTU of interface ip6gretap242 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 331.650068][ T9275] batman_adv: batadv0: Not using interface ip6gretap242 (retrying later): interface not active [ 331.667726][ T9277] batman_adv: Cannot find parent device [ 331.676471][ T9277] batman_adv: batadv0: Adding interface: ip6gretap314 [ 331.685330][ T9277] batman_adv: batadv0: The MTU of interface ip6gretap314 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 331.721094][ T9277] batman_adv: batadv0: Not using interface ip6gretap314 (retrying later): interface not active [ 331.744049][ T9279] batman_adv: Cannot find parent device [ 331.752595][ T9279] batman_adv: batadv0: Adding interface: ip6gretap271 04:24:20 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3ed80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 331.760374][ T9279] batman_adv: batadv0: The MTU of interface ip6gretap271 is too small (1434) 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. [ 331.788000][ T9279] batman_adv: batadv0: Not using interface ip6gretap271 (retrying later): interface not active [ 331.816085][ T9290] batman_adv: Cannot find parent device 04:24:20 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dd05, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 331.825035][ T9290] batman_adv: batadv0: Adding interface: ip6gretap315 04:24:20 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x77d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 331.833873][ T9290] batman_adv: batadv0: The MTU of interface ip6gretap315 is too small (1434) 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. [ 331.866837][ T9290] batman_adv: batadv0: Not using interface ip6gretap315 (retrying later): interface not active [ 331.891224][ T9293] batman_adv: Cannot find parent device [ 331.900838][ T9293] batman_adv: batadv0: Adding interface: ip6gretap243 [ 331.910436][ T9293] batman_adv: batadv0: The MTU of interface ip6gretap243 is too small (1434) 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. [ 331.944314][ T9293] batman_adv: batadv0: Not using interface ip6gretap243 (retrying later): interface not active [ 331.963664][ T9295] batman_adv: Cannot find parent device [ 331.972546][ T9295] batman_adv: batadv0: Adding interface: ip6gretap272 [ 331.982467][ T9295] batman_adv: batadv0: The MTU of interface ip6gretap272 is too small (1434) 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. [ 332.014100][ T9295] batman_adv: batadv0: Not using interface ip6gretap272 (retrying later): interface not active 04:24:20 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6}]}) setreuid(0x0, 0x0) 04:24:20 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3f000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:20 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x30000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:20 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x78d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 332.300980][ T9303] batman_adv: Cannot find parent device [ 332.310328][ T9303] batman_adv: batadv0: Adding interface: ip6gretap244 [ 332.321094][ T9303] batman_adv: batadv0: The MTU of interface ip6gretap244 is too small (1434) 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. [ 332.353840][ T9303] batman_adv: batadv0: Not using interface ip6gretap244 (retrying later): interface not active [ 332.373700][ T9302] batman_adv: Cannot find parent device [ 332.374163][ T37] audit: type=1326 audit(1636259060.991:577): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=9306 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x0 [ 332.383557][ T9302] batman_adv: batadv0: Adding interface: ip6gretap316 [ 332.415834][ T9302] batman_adv: batadv0: The MTU of interface ip6gretap316 is too small (1434) 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. [ 332.452352][ T9302] batman_adv: batadv0: Not using interface ip6gretap316 (retrying later): interface not active [ 332.472939][ T9305] batman_adv: Cannot find parent device [ 332.481864][ T9305] batman_adv: batadv0: Adding interface: ip6gretap273 [ 332.490015][ T9305] batman_adv: batadv0: The MTU of interface ip6gretap273 is too small (1434) 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. 04:24:21 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3fd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 332.525329][ T9305] batman_adv: batadv0: Not using interface ip6gretap273 (retrying later): interface not active [ 332.549596][ T9311] batman_adv: Cannot find parent device [ 332.559667][ T9311] batman_adv: batadv0: Adding interface: ip6gretap317 04:24:21 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 332.570032][ T9311] batman_adv: batadv0: The MTU of interface ip6gretap317 is too small (1434) 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. [ 332.607745][ T9311] batman_adv: batadv0: Not using interface ip6gretap317 (retrying later): interface not active [ 332.638328][ T9314] batman_adv: Cannot find parent device 04:24:21 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x40000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 332.650899][ T9314] batman_adv: batadv0: Adding interface: ip6gretap245 [ 332.660141][ T9314] batman_adv: batadv0: The MTU of interface ip6gretap245 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 332.696358][ T9314] batman_adv: batadv0: Not using interface ip6gretap245 (retrying later): interface not active 04:24:21 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x79d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 332.744597][ T9317] batman_adv: Cannot find parent device [ 332.753034][ T9317] batman_adv: batadv0: Adding interface: ip6gretap318 [ 332.762211][ T9317] batman_adv: batadv0: The MTU of interface ip6gretap318 is too small (1434) 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. [ 332.795809][ T9317] batman_adv: batadv0: Not using interface ip6gretap318 (retrying later): interface not active [ 332.819710][ T9320] batman_adv: Cannot find parent device [ 332.838086][ T9320] batman_adv: batadv0: Adding interface: ip6gretap274 [ 332.850532][ T9320] batman_adv: batadv0: The MTU of interface ip6gretap274 is too small (1434) 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. [ 332.887417][ T9320] batman_adv: batadv0: Not using interface ip6gretap274 (retrying later): interface not active 04:24:21 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x40000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:21 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7a000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:21 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000240)={0x1, &(0x7f0000000040)=[{0x6}]}) setreuid(0x0, 0x0) 04:24:21 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x40d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 333.240425][ T9332] batman_adv: Cannot find parent device [ 333.249961][ T9332] batman_adv: batadv0: Adding interface: ip6gretap319 [ 333.259833][ T9332] batman_adv: batadv0: The MTU of interface ip6gretap319 is too small (1434) 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. [ 333.294685][ T9332] batman_adv: batadv0: Not using interface ip6gretap319 (retrying later): interface not active [ 333.311049][ T37] audit: type=1326 audit(1636259061.931:578): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=9334 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=40000003 syscall=240 compat=1 ip=0xf6f24549 code=0x0 [ 333.313360][ T9333] batman_adv: Cannot find parent device [ 333.344604][ T9333] batman_adv: batadv0: Adding interface: ip6gretap275 04:24:21 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x41d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:22 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x30000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 333.354425][ T9333] batman_adv: batadv0: The MTU of interface ip6gretap275 is too small (1434) 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. [ 333.387105][ T9333] batman_adv: batadv0: Not using interface ip6gretap275 (retrying later): interface not active [ 333.406559][ T9330] batman_adv: Cannot find parent device [ 333.416158][ T9330] batman_adv: batadv0: Adding interface: ip6gretap246 [ 333.424734][ T9330] batman_adv: batadv0: The MTU of interface ip6gretap246 is too small (1434) 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. [ 333.462456][ T9330] batman_adv: batadv0: Not using interface ip6gretap246 (retrying later): interface not active [ 333.487771][ T9339] batman_adv: Cannot find parent device [ 333.499073][ T9339] batman_adv: batadv0: Adding interface: ip6gretap320 [ 333.510238][ T9339] batman_adv: batadv0: The MTU of interface ip6gretap320 is too small (1434) 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. [ 333.545068][ T9339] batman_adv: batadv0: Not using interface ip6gretap320 (retrying later): interface not active [ 333.565353][ T9341] batman_adv: Cannot find parent device [ 333.579495][ T9341] batman_adv: batadv0: Adding interface: ip6gretap56 04:24:22 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x42d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 333.593527][ T9341] batman_adv: batadv0: The MTU of interface ip6gretap56 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 333.644024][ T9341] batman_adv: batadv0: Not using interface ip6gretap56 (retrying later): interface not active [ 333.674475][ T9346] batman_adv: Cannot find parent device [ 333.684638][ T9346] batman_adv: batadv0: Adding interface: ip6gretap321 04:24:22 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xdd0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:22 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7ad70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 333.696893][ T9346] batman_adv: batadv0: The MTU of interface ip6gretap321 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 333.732889][ T9346] batman_adv: batadv0: Not using interface ip6gretap321 (retrying later): interface not active 04:24:22 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dd03, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 333.754519][ T9348] batman_adv: Cannot find parent device [ 333.763520][ T9348] batman_adv: batadv0: Adding interface: ip6gretap247 [ 333.772765][ T9348] batman_adv: batadv0: The MTU of interface ip6gretap247 is too small (1434) 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. [ 333.807606][ T9348] batman_adv: batadv0: Not using interface ip6gretap247 (retrying later): interface not active [ 333.825688][ T9350] batman_adv: Cannot find parent device 04:24:22 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x43d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 333.834649][ T9350] batman_adv: batadv0: Adding interface: ip6gretap276 [ 333.842779][ T9350] batman_adv: batadv0: The MTU of interface ip6gretap276 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 333.873440][ T9350] batman_adv: batadv0: Not using interface ip6gretap276 (retrying later): interface not active [ 333.892859][ T9354] batman_adv: Cannot find parent device [ 333.903473][ T9354] batman_adv: batadv0: Adding interface: ip6gretap57 [ 333.911027][ T9354] batman_adv: batadv0: The MTU of interface ip6gretap57 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 333.942015][ T9354] batman_adv: batadv0: Not using interface ip6gretap57 (retrying later): interface not active [ 333.957775][ T9356] __nla_validate_parse: 15 callbacks suppressed [ 333.957795][ T9356] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 333.987907][ T9358] batman_adv: Cannot find parent device [ 333.996188][ T9358] batman_adv: batadv0: Adding interface: ip6gretap322 04:24:22 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dd01, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 334.005768][ T9358] batman_adv: batadv0: The MTU of interface ip6gretap322 is too small (1434) 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. 04:24:22 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xe0ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 334.038072][ T9358] batman_adv: batadv0: Not using interface ip6gretap322 (retrying later): interface not active [ 334.062097][ T9361] batman_adv: Cannot find parent device [ 334.074747][ T9361] batman_adv: batadv0: Adding interface: ip6gretap58 04:24:22 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7bd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 334.085853][ T9361] batman_adv: batadv0: The MTU of interface ip6gretap58 is too small (1434) 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. [ 334.118890][ T9361] batman_adv: batadv0: Not using interface ip6gretap58 (retrying later): interface not active [ 334.143190][ T9363] batman_adv: Cannot find parent device [ 334.154045][ T9363] batman_adv: batadv0: Adding interface: ip6gretap248 04:24:22 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x44d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:22 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 334.163992][ T9363] batman_adv: batadv0: The MTU of interface ip6gretap248 is too small (1434) 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. [ 334.202678][ T9363] batman_adv: batadv0: Not using interface ip6gretap248 (retrying later): interface not active [ 334.228897][ T9366] batman_adv: Cannot find parent device [ 334.237729][ T9366] batman_adv: batadv0: Adding interface: ip6gretap277 [ 334.244710][ T9366] batman_adv: batadv0: The MTU of interface ip6gretap277 is too small (1434) 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. [ 334.275109][ T9366] batman_adv: batadv0: Not using interface ip6gretap277 (retrying later): interface not active [ 334.296463][ T9368] batman_adv: Cannot find parent device [ 334.304761][ T9368] batman_adv: batadv0: Adding interface: ip6gretap323 [ 334.313695][ T9368] batman_adv: batadv0: The MTU of interface ip6gretap323 is too small (1434) 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. [ 334.342312][ T9368] batman_adv: batadv0: Not using interface ip6gretap323 (retrying later): interface not active [ 334.354911][ T9371] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 334.374733][ T9372] batman_adv: Cannot find parent device 04:24:23 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x450e0000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 334.386020][ T9372] batman_adv: batadv0: Adding interface: ip6gretap59 [ 334.395098][ T9372] batman_adv: batadv0: The MTU of interface ip6gretap59 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 334.430108][ T9372] batman_adv: batadv0: Not using interface ip6gretap59 (retrying later): interface not active 04:24:23 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xf0ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 334.445400][ T9373] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:23 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7cd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 334.474600][ T9378] batman_adv: Cannot find parent device [ 334.484185][ T9378] batman_adv: batadv0: Adding interface: ip6gretap249 04:24:23 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x61020000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 334.493231][ T9378] batman_adv: batadv0: The MTU of interface ip6gretap249 is too small (1434) 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. [ 334.528315][ T9378] batman_adv: batadv0: Not using interface ip6gretap249 (retrying later): interface not active [ 334.554177][ T9377] batman_adv: Cannot find parent device [ 334.566669][ T9377] batman_adv: batadv0: Adding interface: ip6gretap324 [ 334.577959][ T9377] batman_adv: batadv0: The MTU of interface ip6gretap324 is too small (1434) 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. [ 334.619239][ T9377] batman_adv: batadv0: Not using interface ip6gretap324 (retrying later): interface not active [ 334.640698][ T9380] batman_adv: Cannot find parent device [ 334.650464][ T9380] batman_adv: batadv0: Adding interface: ip6gretap278 04:24:23 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x45d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 334.659252][ T9380] batman_adv: batadv0: The MTU of interface ip6gretap278 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 334.693310][ T9380] batman_adv: batadv0: Not using interface ip6gretap278 (retrying later): interface not active [ 334.713373][ T9383] batman_adv: Cannot find parent device [ 334.721867][ T9383] batman_adv: batadv0: Adding interface: ip6gretap60 [ 334.730399][ T9383] batman_adv: batadv0: The MTU of interface ip6gretap60 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 334.764802][ T9383] batman_adv: batadv0: Not using interface ip6gretap60 (retrying later): interface not active [ 334.780537][ T9384] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 334.800813][ T9387] batman_adv: Cannot find parent device [ 334.809258][ T9387] batman_adv: batadv0: Adding interface: ip6gretap325 04:24:23 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:23 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xf0ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 334.819684][ T9387] batman_adv: batadv0: The MTU of interface ip6gretap325 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 334.856971][ T9387] batman_adv: batadv0: Not using interface ip6gretap325 (retrying later): interface not active [ 334.876234][ T9388] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 334.912123][ T9392] batman_adv: Cannot find parent device [ 334.921392][ T9392] batman_adv: batadv0: Adding interface: ip6gretap61 [ 334.930616][ T9392] batman_adv: batadv0: The MTU of interface ip6gretap61 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:23 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7dd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 334.968153][ T9392] batman_adv: batadv0: Not using interface ip6gretap61 (retrying later): interface not active [ 334.988714][ T9390] batman_adv: Cannot find parent device [ 334.996620][ T9390] batman_adv: batadv0: Adding interface: ip6gretap250 04:24:23 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x460e0000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 335.005820][ T9390] batman_adv: batadv0: The MTU of interface ip6gretap250 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 335.040670][ T9390] batman_adv: batadv0: Not using interface ip6gretap250 (retrying later): interface not active [ 335.060025][ T9394] batman_adv: Cannot find parent device [ 335.066808][ T9394] batman_adv: batadv0: Adding interface: ip6gretap279 [ 335.074901][ T9394] batman_adv: batadv0: The MTU of interface ip6gretap279 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:23 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2fd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 335.108769][ T9394] batman_adv: batadv0: Not using interface ip6gretap279 (retrying later): interface not active [ 335.129209][ T9397] batman_adv: Cannot find parent device [ 335.136727][ T9397] batman_adv: batadv0: Adding interface: ip6gretap326 [ 335.143479][ T9397] batman_adv: batadv0: The MTU of interface ip6gretap326 is too small (1434) 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. [ 335.169177][ T9397] batman_adv: batadv0: Not using interface ip6gretap326 (retrying later): interface not active [ 335.180104][ T9399] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 335.202154][ T9401] batman_adv: Cannot find parent device [ 335.211432][ T9401] batman_adv: batadv0: Adding interface: ip6gretap62 04:24:23 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x46d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:23 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 335.220009][ T9401] batman_adv: batadv0: The MTU of interface ip6gretap62 is too small (1434) 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. [ 335.255533][ T9401] batman_adv: batadv0: Not using interface ip6gretap62 (retrying later): interface not active [ 335.269596][ T9402] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 335.290769][ T9407] batman_adv: Cannot find parent device [ 335.299372][ T9407] batman_adv: batadv0: Adding interface: ip6gretap251 04:24:23 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7ed70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:23 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf7, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 335.308184][ T9407] batman_adv: batadv0: The MTU of interface ip6gretap251 is too small (1434) 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. [ 335.342313][ T9407] batman_adv: batadv0: Not using interface ip6gretap251 (retrying later): interface not active [ 335.362993][ T9406] batman_adv: Cannot find parent device [ 335.371124][ T9406] batman_adv: batadv0: Adding interface: ip6gretap327 [ 335.379516][ T9406] batman_adv: batadv0: The MTU of interface ip6gretap327 is too small (1434) 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. [ 335.412447][ T9406] batman_adv: batadv0: Not using interface ip6gretap327 (retrying later): interface not active [ 335.435756][ T9409] batman_adv: Cannot find parent device [ 335.443658][ T9409] batman_adv: batadv0: Adding interface: ip6gretap280 [ 335.452407][ T9409] batman_adv: batadv0: The MTU of interface ip6gretap280 is too small (1434) 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. 04:24:24 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x470e0000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 335.486962][ T9409] batman_adv: batadv0: Not using interface ip6gretap280 (retrying later): interface not active [ 335.511743][ T9413] batman_adv: Cannot find parent device [ 335.520753][ T9413] batman_adv: batadv0: Adding interface: ip6gretap63 04:24:24 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dd0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 335.529766][ T9413] batman_adv: batadv0: The MTU of interface ip6gretap63 is too small (1434) 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. [ 335.565324][ T9413] batman_adv: batadv0: Not using interface ip6gretap63 (retrying later): interface not active [ 335.581466][ T9415] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 335.600705][ T9417] batman_adv: Cannot find parent device 04:24:24 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcf6, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 335.609567][ T9417] batman_adv: batadv0: Adding interface: ip6gretap328 04:24:24 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7fd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 335.617953][ T9417] batman_adv: batadv0: The MTU of interface ip6gretap328 is too small (1434) 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. [ 335.647399][ T9417] batman_adv: batadv0: Not using interface ip6gretap328 (retrying later): interface not active [ 335.674621][ T9419] batman_adv: Cannot find parent device [ 335.682636][ T9419] batman_adv: batadv0: Adding interface: ip6gretap252 04:24:24 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x47d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 335.691284][ T9419] batman_adv: batadv0: The MTU of interface ip6gretap252 is too small (1434) 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. [ 335.726800][ T9419] batman_adv: batadv0: Not using interface ip6gretap252 (retrying later): interface not active [ 335.744966][ T9422] batman_adv: Cannot find parent device [ 335.752199][ T9422] batman_adv: batadv0: Adding interface: ip6gretap281 [ 335.760940][ T9422] batman_adv: batadv0: The MTU of interface ip6gretap281 is too small (1434) 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. [ 335.790332][ T9422] batman_adv: batadv0: Not using interface ip6gretap281 (retrying later): interface not active [ 335.808412][ T9423] batman_adv: Cannot find parent device [ 335.821641][ T9423] batman_adv: batadv0: Adding interface: ip6gretap64 [ 335.830522][ T9423] batman_adv: batadv0: The MTU of interface ip6gretap64 is too small (1434) 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. [ 335.862504][ T9423] batman_adv: batadv0: Not using interface ip6gretap64 (retrying later): interface not active [ 335.881740][ T9426] batman_adv: Cannot find parent device [ 335.892530][ T9426] batman_adv: batadv0: Adding interface: ip6gretap329 [ 335.900372][ T9426] batman_adv: batadv0: The MTU of interface ip6gretap329 is too small (1434) 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. [ 335.932552][ T9426] batman_adv: batadv0: Not using interface ip6gretap329 (retrying later): interface not active 04:24:24 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1f000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 335.946631][ T9427] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 335.975355][ T9431] batman_adv: Cannot find parent device [ 335.987586][ T9431] batman_adv: batadv0: Adding interface: ip6gretap65 [ 335.996653][ T9431] batman_adv: batadv0: The MTU of interface ip6gretap65 is too small (1434) 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. [ 336.033756][ T9431] batman_adv: batadv0: Not using interface ip6gretap65 (retrying later): interface not active 04:24:24 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:24 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x80d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:24 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x48000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 336.080598][ T9436] batman_adv: Cannot find parent device 04:24:24 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcec, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 336.089943][ T9436] batman_adv: batadv0: Adding interface: ip6gretap253 [ 336.099129][ T9436] batman_adv: batadv0: The MTU of interface ip6gretap253 is too small (1434) 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. [ 336.136486][ T9436] batman_adv: batadv0: Not using interface ip6gretap253 (retrying later): interface not active [ 336.155323][ T9434] batman_adv: Cannot find parent device [ 336.162775][ T9434] batman_adv: batadv0: Adding interface: ip6gretap330 [ 336.170231][ T9434] batman_adv: batadv0: The MTU of interface ip6gretap330 is too small (1434) 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. [ 336.199043][ T9434] batman_adv: batadv0: Not using interface ip6gretap330 (retrying later): interface not active [ 336.220351][ T9437] batman_adv: Cannot find parent device [ 336.231344][ T9437] batman_adv: batadv0: Adding interface: ip6gretap282 04:24:24 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x480e0000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 336.241599][ T9437] batman_adv: batadv0: The MTU of interface ip6gretap282 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 336.278553][ T9437] batman_adv: batadv0: Not using interface ip6gretap282 (retrying later): interface not active [ 336.300476][ T9439] batman_adv: Cannot find parent device [ 336.309015][ T9439] batman_adv: batadv0: Adding interface: ip6gretap66 [ 336.318308][ T9439] batman_adv: batadv0: The MTU of interface ip6gretap66 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 336.353368][ T9439] batman_adv: batadv0: Not using interface ip6gretap66 (retrying later): interface not active [ 336.367035][ T9440] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 336.387305][ T9445] batman_adv: Cannot find parent device [ 336.398947][ T9445] batman_adv: batadv0: Adding interface: ip6gretap331 04:24:25 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x81000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:25 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x48000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 336.408949][ T9445] batman_adv: batadv0: The MTU of interface ip6gretap331 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 336.448610][ T9445] batman_adv: batadv0: Not using interface ip6gretap331 (retrying later): interface not active 04:24:25 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x2dd0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 336.470178][ T9448] batman_adv: Cannot find parent device [ 336.479105][ T9448] batman_adv: batadv0: Adding interface: ip6gretap254 [ 336.488227][ T9448] batman_adv: batadv0: The MTU of interface ip6gretap254 is too small (1434) 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. [ 336.523111][ T9448] batman_adv: batadv0: Not using interface ip6gretap254 (retrying later): interface not active 04:24:25 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x48d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 336.543058][ T9452] batman_adv: Cannot find parent device [ 336.553119][ T9452] batman_adv: batadv0: Adding interface: ip6gretap283 [ 336.563217][ T9452] batman_adv: batadv0: The MTU of interface ip6gretap283 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 336.601247][ T9452] batman_adv: batadv0: Not using interface ip6gretap283 (retrying later): interface not active [ 336.620633][ T9454] batman_adv: Cannot find parent device [ 336.630354][ T9454] batman_adv: batadv0: Adding interface: ip6gretap67 [ 336.639331][ T9454] batman_adv: batadv0: The MTU of interface ip6gretap67 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 336.673230][ T9454] batman_adv: batadv0: Not using interface ip6gretap67 (retrying later): interface not active [ 336.691610][ T9456] batman_adv: Cannot find parent device [ 336.699990][ T9456] batman_adv: batadv0: Adding interface: ip6gretap332 04:24:25 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:25 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d79e, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 336.707873][ T9456] batman_adv: batadv0: The MTU of interface ip6gretap332 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 336.750207][ T9456] batman_adv: batadv0: Not using interface ip6gretap332 (retrying later): interface not active [ 336.772082][ T9462] batman_adv: Cannot find parent device [ 336.781833][ T9462] batman_adv: batadv0: Adding interface: ip6gretap68 04:24:25 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x81d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:25 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x49d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 336.791280][ T9462] batman_adv: batadv0: The MTU of interface ip6gretap68 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 336.824997][ T9462] batman_adv: batadv0: Not using interface ip6gretap68 (retrying later): interface not active [ 336.845790][ T9460] batman_adv: Cannot find parent device [ 336.857487][ T9460] batman_adv: batadv0: Adding interface: ip6gretap255 [ 336.868040][ T9460] batman_adv: batadv0: The MTU of interface ip6gretap255 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:25 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1dcb2, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 336.907994][ T9460] batman_adv: batadv0: Not using interface ip6gretap255 (retrying later): interface not active [ 336.931049][ T9465] batman_adv: Cannot find parent device [ 336.943852][ T9465] batman_adv: batadv0: Adding interface: ip6gretap333 [ 336.953033][ T9465] batman_adv: batadv0: The MTU of interface ip6gretap333 is too small (1434) 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. [ 336.991072][ T9465] batman_adv: batadv0: Not using interface ip6gretap333 (retrying later): interface not active [ 337.014605][ T9467] batman_adv: Cannot find parent device [ 337.023229][ T9467] batman_adv: batadv0: Adding interface: ip6gretap284 [ 337.032068][ T9467] batman_adv: batadv0: The MTU of interface ip6gretap284 is too small (1434) 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. 04:24:25 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4a000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 337.065440][ T9467] batman_adv: batadv0: Not using interface ip6gretap284 (retrying later): interface not active [ 337.092378][ T9470] batman_adv: Cannot find parent device [ 337.099860][ T9470] batman_adv: batadv0: Adding interface: ip6gretap69 04:24:25 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3dd0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 337.107999][ T9470] batman_adv: batadv0: The MTU of interface ip6gretap69 is too small (1434) 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. [ 337.138171][ T9470] batman_adv: batadv0: Not using interface ip6gretap69 (retrying later): interface not active [ 337.168051][ T9475] batman_adv: Cannot find parent device [ 337.176948][ T9475] batman_adv: batadv0: Adding interface: ip6gretap256 04:24:25 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d79a, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:25 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x82d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 337.185082][ T9475] batman_adv: batadv0: The MTU of interface ip6gretap256 is too small (1434) 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. [ 337.219873][ T9475] batman_adv: batadv0: Not using interface ip6gretap256 (retrying later): interface not active [ 337.239457][ T9473] batman_adv: Cannot find parent device [ 337.251638][ T9473] batman_adv: batadv0: Adding interface: ip6gretap334 [ 337.259019][ T9473] batman_adv: batadv0: The MTU of interface ip6gretap334 is too small (1434) 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. [ 337.293746][ T9473] batman_adv: batadv0: Not using interface ip6gretap334 (retrying later): interface not active [ 337.307908][ T9477] batman_adv: Cannot find parent device [ 337.314634][ T9477] batman_adv: batadv0: Adding interface: ip6gretap285 [ 337.321655][ T9477] batman_adv: batadv0: The MTU of interface ip6gretap285 is too small (1434) 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. [ 337.348153][ T9477] batman_adv: batadv0: Not using interface ip6gretap285 (retrying later): interface not active [ 337.367463][ T9479] batman_adv: Cannot find parent device [ 337.376165][ T9479] batman_adv: batadv0: Adding interface: ip6gretap70 [ 337.383566][ T9479] batman_adv: batadv0: The MTU of interface ip6gretap70 is too small (1434) 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. [ 337.412137][ T9479] batman_adv: batadv0: Not using interface ip6gretap70 (retrying later): interface not active 04:24:26 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:26 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x83d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:26 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4ad80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:26 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d845, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 337.513706][ T9486] batman_adv: Cannot find parent device [ 337.523911][ T9486] batman_adv: batadv0: Adding interface: ip6gretap257 [ 337.535170][ T9486] batman_adv: batadv0: The MTU of interface ip6gretap257 is too small (1434) 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. [ 337.576937][ T9486] batman_adv: batadv0: Not using interface ip6gretap257 (retrying later): interface not active [ 337.599262][ T9490] batman_adv: Cannot find parent device [ 337.607420][ T9490] batman_adv: batadv0: Adding interface: ip6gretap286 [ 337.616338][ T9490] batman_adv: batadv0: The MTU of interface ip6gretap286 is too small (1434) 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. [ 337.653209][ T9490] batman_adv: batadv0: Not using interface ip6gretap286 (retrying later): interface not active [ 337.736469][ T9489] batman_adv: Cannot find parent device [ 337.747669][ T9489] batman_adv: batadv0: Adding interface: ip6gretap335 [ 337.755834][ T9489] batman_adv: batadv0: The MTU of interface ip6gretap335 is too small (1434) 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. [ 337.787960][ T9489] batman_adv: batadv0: Not using interface ip6gretap335 (retrying later): interface not active [ 337.809831][ T9492] batman_adv: Cannot find parent device [ 337.819817][ T9492] batman_adv: batadv0: Adding interface: ip6gretap71 04:24:26 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4bd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 337.831273][ T9492] batman_adv: batadv0: The MTU of interface ip6gretap71 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 337.872107][ T9492] batman_adv: batadv0: Not using interface ip6gretap71 (retrying later): interface not active [ 337.912918][ T9497] batman_adv: Cannot find parent device [ 337.922513][ T9497] batman_adv: batadv0: Adding interface: ip6gretap336 04:24:26 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d843, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:26 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4dd0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:26 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x84d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 337.932086][ T9497] batman_adv: batadv0: The MTU of interface ip6gretap336 is too small (1434) 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. [ 337.965336][ T9497] batman_adv: batadv0: Not using interface ip6gretap336 (retrying later): interface not active [ 338.008916][ T9504] batman_adv: Cannot find parent device 04:24:26 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4c000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 338.017293][ T9504] batman_adv: batadv0: Adding interface: ip6gretap258 [ 338.026062][ T9504] batman_adv: batadv0: The MTU of interface ip6gretap258 is too small (1434) 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. [ 338.059115][ T9504] batman_adv: batadv0: Not using interface ip6gretap258 (retrying later): interface not active [ 338.077000][ T9502] batman_adv: Cannot find parent device [ 338.086282][ T9502] batman_adv: batadv0: Adding interface: ip6gretap72 [ 338.095172][ T9502] batman_adv: batadv0: The MTU of interface ip6gretap72 is too small (1434) 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. [ 338.127447][ T9502] batman_adv: batadv0: Not using interface ip6gretap72 (retrying later): interface not active [ 338.145061][ T9505] batman_adv: Cannot find parent device [ 338.154220][ T9505] batman_adv: batadv0: Adding interface: ip6gretap287 [ 338.162821][ T9505] batman_adv: batadv0: The MTU of interface ip6gretap287 is too small (1434) 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. [ 338.194749][ T9505] batman_adv: batadv0: Not using interface ip6gretap287 (retrying later): interface not active [ 338.216027][ T9507] batman_adv: Cannot find parent device [ 338.223809][ T9507] batman_adv: batadv0: Adding interface: ip6gretap337 04:24:26 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d792, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 338.232020][ T9507] batman_adv: batadv0: The MTU of interface ip6gretap337 is too small (1434) 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. [ 338.260771][ T9507] batman_adv: batadv0: Not using interface ip6gretap337 (retrying later): interface not active [ 338.282613][ T9511] batman_adv: Cannot find parent device [ 338.289499][ T9511] batman_adv: batadv0: Adding interface: ip6gretap73 04:24:26 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x85d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:26 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 338.299434][ T9511] batman_adv: batadv0: The MTU of interface ip6gretap73 is too small (1434) 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. [ 338.332750][ T9511] batman_adv: batadv0: Not using interface ip6gretap73 (retrying later): interface not active 04:24:26 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4cd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 338.359960][ T9516] batman_adv: Cannot find parent device [ 338.368062][ T9516] batman_adv: batadv0: Adding interface: ip6gretap288 [ 338.376410][ T9516] batman_adv: batadv0: The MTU of interface ip6gretap288 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 338.419781][ T9516] batman_adv: batadv0: Not using interface ip6gretap288 (retrying later): interface not active 04:24:27 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1d83e, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 338.459349][ T9520] batman_adv: Cannot find parent device [ 338.468432][ T9520] batman_adv: batadv0: Adding interface: ip6gretap338 04:24:27 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x868a53f3, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 338.478822][ T9520] batman_adv: batadv0: The MTU of interface ip6gretap338 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 338.516109][ T9520] batman_adv: batadv0: Not using interface ip6gretap338 (retrying later): interface not active [ 338.579352][ T9519] batman_adv: Cannot find parent device [ 338.600929][ T9529] batman_adv: Cannot find parent device [ 338.610246][ T9529] batman_adv: batadv0: Adding interface: ip6gretap289 [ 338.618780][ T9529] batman_adv: batadv0: The MTU of interface ip6gretap289 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 338.651928][ T9529] batman_adv: batadv0: Not using interface ip6gretap289 (retrying later): interface not active [ 338.670885][ T9528] batman_adv: Cannot find parent device 04:24:27 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4dd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:27 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5dd0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 338.756186][ T9536] batman_adv: Cannot find parent device 04:24:27 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 338.765540][ T9536] batman_adv: batadv0: Adding interface: ip6gretap339 [ 338.774538][ T9536] batman_adv: batadv0: The MTU of interface ip6gretap339 is too small (1434) 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. [ 338.806441][ T9536] batman_adv: batadv0: Not using interface ip6gretap339 (retrying later): interface not active [ 338.827315][ T9538] batman_adv: Cannot find parent device [ 338.836296][ T9538] batman_adv: batadv0: Adding interface: ip6gretap260 04:24:27 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4ed80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 338.844461][ T9538] batman_adv: batadv0: The MTU of interface ip6gretap260 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 338.878785][ T9538] batman_adv: batadv0: Not using interface ip6gretap260 (retrying later): interface not active [ 338.897030][ T9540] batman_adv: Cannot find parent device [ 338.905484][ T9540] batman_adv: batadv0: Adding interface: ip6gretap75 [ 338.913871][ T9540] batman_adv: batadv0: The MTU of interface ip6gretap75 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 338.947054][ T9540] batman_adv: batadv0: Not using interface ip6gretap75 (retrying later): interface not active [ 338.967146][ T9544] __nla_validate_parse: 8 callbacks suppressed [ 338.967167][ T9544] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 338.988767][ T9542] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:27 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x86d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 339.044564][ T9547] batman_adv: Cannot find parent device [ 339.053482][ T9547] batman_adv: batadv0: Adding interface: ip6gretap340 04:24:27 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 339.062047][ T9547] batman_adv: batadv0: The MTU of interface ip6gretap340 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:27 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 339.093680][ T9547] batman_adv: batadv0: Not using interface ip6gretap340 (retrying later): interface not active [ 339.150623][ T9551] batman_adv: Cannot find parent device [ 339.159269][ T9551] batman_adv: batadv0: Adding interface: ip6gretap261 [ 339.167880][ T9551] batman_adv: batadv0: The MTU of interface ip6gretap261 is too small (1434) 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. [ 339.199425][ T9551] batman_adv: batadv0: Not using interface ip6gretap261 (retrying later): interface not active [ 339.219180][ T9550] batman_adv: Cannot find parent device [ 339.228721][ T9550] batman_adv: batadv0: Adding interface: ip6gretap290 04:24:27 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4fd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 339.236864][ T9550] batman_adv: batadv0: The MTU of interface ip6gretap290 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 339.277480][ T9550] batman_adv: batadv0: Not using interface ip6gretap290 (retrying later): interface not active [ 339.298150][ T9553] batman_adv: Cannot find parent device [ 339.306911][ T9553] batman_adv: batadv0: Adding interface: ip6gretap76 [ 339.315643][ T9553] batman_adv: batadv0: The MTU of interface ip6gretap76 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 339.351015][ T9553] batman_adv: batadv0: Not using interface ip6gretap76 (retrying later): interface not active [ 339.368153][ T9555] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 339.385778][ T9557] batman_adv: Cannot find parent device [ 339.392876][ T9557] batman_adv: batadv0: Adding interface: ip6gretap341 04:24:28 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:28 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 339.401148][ T9557] batman_adv: batadv0: The MTU of interface ip6gretap341 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 339.440439][ T9557] batman_adv: batadv0: Not using interface ip6gretap341 (retrying later): interface not active 04:24:28 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x87d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 339.494436][ T9559] batman_adv: Cannot find parent device [ 339.503581][ T9559] batman_adv: batadv0: Adding interface: ip6gretap262 04:24:28 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x50d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 339.512734][ T9559] batman_adv: batadv0: The MTU of interface ip6gretap262 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 339.563435][ T9559] batman_adv: batadv0: Not using interface ip6gretap262 (retrying later): interface not active [ 339.590437][ T9564] batman_adv: Cannot find parent device [ 339.598825][ T9564] batman_adv: batadv0: Adding interface: ip6gretap291 [ 339.608063][ T9564] batman_adv: batadv0: The MTU of interface ip6gretap291 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 339.640885][ T9564] batman_adv: batadv0: Not using interface ip6gretap291 (retrying later): interface not active [ 339.674934][ T9567] batman_adv: Cannot find parent device 04:24:28 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 339.688949][ T9567] batman_adv: batadv0: Adding interface: ip6gretap342 [ 339.696684][ T9567] batman_adv: batadv0: The MTU of interface ip6gretap342 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 339.736795][ T9567] batman_adv: batadv0: Not using interface ip6gretap342 (retrying later): interface not active [ 339.751230][ T9568] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 339.764408][ T9569] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:28 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:28 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:28 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x51d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:28 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x88a8ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 339.825715][ T9574] batman_adv: Cannot find parent device [ 339.834023][ T9574] batman_adv: batadv0: Adding interface: ip6gretap263 [ 339.842184][ T9574] batman_adv: batadv0: The MTU of interface ip6gretap263 is too small (1434) 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. [ 339.875077][ T9574] batman_adv: batadv0: Not using interface ip6gretap263 (retrying later): interface not active [ 339.896212][ T9576] batman_adv: Cannot find parent device [ 339.904589][ T9576] batman_adv: batadv0: Adding interface: ip6gretap343 [ 339.914934][ T9576] batman_adv: batadv0: The MTU of interface ip6gretap343 is too small (1434) 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. [ 339.951772][ T9576] batman_adv: batadv0: Not using interface ip6gretap343 (retrying later): interface not active [ 339.973707][ T9579] batman_adv: Cannot find parent device [ 339.984473][ T9579] batman_adv: batadv0: Adding interface: ip6gretap292 [ 339.993817][ T9579] batman_adv: batadv0: The MTU of interface ip6gretap292 is too small (1434) 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. 04:24:28 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x52d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.025731][ T9579] batman_adv: batadv0: Not using interface ip6gretap292 (retrying later): interface not active [ 340.045116][ T9581] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:28 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.062879][ T9584] batman_adv: Cannot find parent device 04:24:28 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.073911][ T9584] batman_adv: batadv0: Adding interface: ip6gretap344 [ 340.084941][ T9584] batman_adv: batadv0: The MTU of interface ip6gretap344 is too small (1434) 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. [ 340.119797][ T9584] batman_adv: batadv0: Not using interface ip6gretap344 (retrying later): interface not active [ 340.133768][ T9585] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 340.163814][ T9589] batman_adv: Cannot find parent device [ 340.172537][ T9589] batman_adv: batadv0: Adding interface: ip6gretap264 [ 340.181416][ T9589] batman_adv: batadv0: The MTU of interface ip6gretap264 is too small (1434) 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. [ 340.215683][ T9589] batman_adv: batadv0: Not using interface ip6gretap264 (retrying later): interface not active 04:24:28 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x53d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:28 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:28 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x88d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.259207][ T9592] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 340.283817][ T9591] batman_adv: Cannot find parent device [ 340.293028][ T9591] batman_adv: batadv0: Adding interface: ip6gretap345 04:24:28 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.302275][ T9591] batman_adv: batadv0: The MTU of interface ip6gretap345 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 340.333622][ T9591] batman_adv: batadv0: Not using interface ip6gretap345 (retrying later): interface not active [ 340.352118][ T9596] batman_adv: Cannot find parent device [ 340.359903][ T9596] batman_adv: batadv0: Adding interface: ip6gretap293 04:24:29 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.367367][ T9596] batman_adv: batadv0: The MTU of interface ip6gretap293 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 340.400217][ T9596] batman_adv: batadv0: Not using interface ip6gretap293 (retrying later): interface not active 04:24:29 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x54d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.431419][ T9598] batman_adv: Cannot find parent device [ 340.439848][ T9598] batman_adv: batadv0: Adding interface: ip6gretap265 [ 340.448035][ T9598] batman_adv: batadv0: The MTU of interface ip6gretap265 is too small (1434) 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. [ 340.481334][ T9598] batman_adv: batadv0: Not using interface ip6gretap265 (retrying later): interface not active [ 340.520229][ T9603] batman_adv: Cannot find parent device [ 340.528815][ T9603] batman_adv: batadv0: Adding interface: ip6gretap346 [ 340.537723][ T9603] batman_adv: batadv0: The MTU of interface ip6gretap346 is too small (1434) 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. [ 340.578214][ T9603] batman_adv: batadv0: Not using interface ip6gretap346 (retrying later): interface not active [ 340.601880][ T9604] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:29 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:29 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:29 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:29 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x55d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:29 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x89800000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.687839][ T9612] batman_adv: Cannot find parent device [ 340.710622][ T9612] batman_adv: batadv0: Adding interface: ip6gretap294 [ 340.719923][ T9612] batman_adv: batadv0: The MTU of interface ip6gretap294 is too small (1434) 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. [ 340.754045][ T9612] batman_adv: batadv0: Not using interface ip6gretap294 (retrying later): interface not active [ 340.776129][ T9615] batman_adv: Cannot find parent device 04:24:29 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.784737][ T9615] batman_adv: batadv0: Adding interface: ip6gretap347 [ 340.793352][ T9615] batman_adv: batadv0: The MTU of interface ip6gretap347 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 340.821297][ T9615] batman_adv: batadv0: Not using interface ip6gretap347 (retrying later): interface not active [ 340.840418][ T9617] batman_adv: Cannot find parent device [ 340.850851][ T9617] batman_adv: batadv0: Adding interface: ip6gretap266 04:24:29 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x56d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.860909][ T9617] batman_adv: batadv0: The MTU of interface ip6gretap266 is too small (1434) 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. [ 340.899353][ T9617] batman_adv: batadv0: Not using interface ip6gretap266 (retrying later): interface not active [ 340.923404][ T9618] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 340.946871][ T9626] batman_adv: Cannot find parent device 04:24:29 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x89d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.956797][ T9626] batman_adv: batadv0: Adding interface: ip6gretap348 04:24:29 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 340.967238][ T9626] batman_adv: batadv0: The MTU of interface ip6gretap348 is too small (1434) 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. [ 341.007606][ T9626] batman_adv: batadv0: Not using interface ip6gretap348 (retrying later): interface not active [ 341.040505][ T9630] batman_adv: Cannot find parent device [ 341.048857][ T9630] batman_adv: batadv0: Adding interface: ip6gretap295 04:24:29 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 341.057158][ T9630] batman_adv: batadv0: The MTU of interface ip6gretap295 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:24:29 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x57d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 341.088325][ T9630] batman_adv: batadv0: Not using interface ip6gretap295 (retrying later): interface not active [ 341.109269][ T9635] batman_adv: Cannot find parent device [ 341.119863][ T9635] batman_adv: batadv0: Adding interface: ip6gretap267 [ 341.130331][ T9635] batman_adv: batadv0: The MTU of interface ip6gretap267 is too small (1434) 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. [ 341.166286][ T9635] batman_adv: batadv0: Not using interface ip6gretap267 (retrying later): interface not active [ 341.196417][ T9639] batman_adv: Cannot find parent device [ 341.204887][ T9639] batman_adv: batadv0: Adding interface: ip6gretap349 [ 341.214315][ T9639] batman_adv: batadv0: The MTU of interface ip6gretap349 is too small (1434) 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. 04:24:29 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8ad70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 341.250822][ T9639] batman_adv: batadv0: Not using interface ip6gretap349 (retrying later): interface not active 04:24:29 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:29 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xe000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 341.305369][ T9646] batman_adv: Cannot find parent device [ 341.314059][ T9646] batman_adv: batadv0: Adding interface: ip6gretap296 [ 341.324029][ T9646] batman_adv: batadv0: The MTU of interface ip6gretap296 is too small (1434) 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. 04:24:29 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x58d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 341.361164][ T9646] batman_adv: batadv0: Not using interface ip6gretap296 (retrying later): interface not active [ 341.377863][ T9651] batman_adv: Cannot find parent device [ 341.385562][ T9651] batman_adv: batadv0: Adding interface: ip6gretap268 [ 341.395874][ T9651] batman_adv: batadv0: The MTU of interface ip6gretap268 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 341.437122][ T9651] batman_adv: batadv0: Not using interface ip6gretap268 (retrying later): interface not active [ 341.465775][ T9655] batman_adv: Cannot find parent device [ 341.477937][ T9655] batman_adv: batadv0: Adding interface: ip6gretap350 04:24:30 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 341.488881][ T9655] batman_adv: batadv0: The MTU of interface ip6gretap350 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 341.522969][ T9655] batman_adv: batadv0: Not using interface ip6gretap350 (retrying later): interface not active 04:24:30 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:30 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xf000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:30 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x59d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:30 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8bd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 341.690904][ T9665] batman_adv: Cannot find parent device [ 341.699352][ T9665] batman_adv: batadv0: Adding interface: ip6gretap269 [ 341.711327][ T9665] batman_adv: batadv0: The MTU of interface ip6gretap269 is too small (1434) 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. [ 341.753166][ T9665] batman_adv: batadv0: Not using interface ip6gretap269 (retrying later): interface not active 04:24:30 executing program 2: socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r2}]}}}, @IFLA_MASTER={0x8}]}, 0x48}}, 0x0) [ 341.775430][ T9669] batman_adv: Cannot find parent device [ 341.792327][ T9669] batman_adv: batadv0: Adding interface: ip6gretap351 [ 341.800048][ T9669] batman_adv: batadv0: The MTU of interface ip6gretap351 is too small (1434) 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. [ 341.832957][ T9669] batman_adv: batadv0: Not using interface ip6gretap351 (retrying later): interface not active [ 341.849257][ T9671] batman_adv: Cannot find parent device [ 341.861082][ T9674] batman_adv: Cannot find parent device 04:24:30 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5ad80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:30 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8c020000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:30 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x10000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:30 executing program 2: socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r2}]}}}, @IFLA_MASTER={0x8}]}, 0x48}}, 0x0) [ 342.116360][ T9679] batman_adv: Cannot find parent device [ 342.124821][ T9679] batman_adv: batadv0: Adding interface: ip6gretap298 [ 342.133559][ T9679] batman_adv: batadv0: The MTU of interface ip6gretap298 is too small (1434) 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. [ 342.167966][ T9679] batman_adv: batadv0: Not using interface ip6gretap298 (retrying later): interface not active [ 342.193029][ T9678] batman_adv: Cannot find parent device [ 342.200901][ T9678] batman_adv: batadv0: Adding interface: ip6gretap352 [ 342.208267][ T9678] batman_adv: batadv0: The MTU of interface ip6gretap352 is too small (1434) 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. [ 342.237363][ T9678] batman_adv: batadv0: Not using interface ip6gretap352 (retrying later): interface not active [ 342.256387][ T9681] batman_adv: Cannot find parent device [ 342.266417][ T9681] batman_adv: batadv0: Adding interface: ip6gretap270 [ 342.275530][ T9681] batman_adv: batadv0: The MTU of interface ip6gretap270 is too small (1434) 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. [ 342.318033][ T9681] batman_adv: batadv0: Not using interface ip6gretap270 (retrying later): interface not active [ 342.337628][ T9683] batman_adv: Cannot find parent device 04:24:31 executing program 2: socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r2}]}}}, @IFLA_MASTER={0x8}]}, 0x48}}, 0x0) 04:24:31 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x10030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:31 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8cd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:31 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5bd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 342.734177][ T9687] batman_adv: Cannot find parent device [ 342.771843][ T9692] batman_adv: Cannot find parent device 04:24:31 executing program 2: ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r0}]}, 0x48}}, 0x0) [ 342.787466][ T9692] batman_adv: batadv0: Adding interface: ip6gretap299 [ 342.797329][ T9692] batman_adv: batadv0: The MTU of interface ip6gretap299 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 342.832718][ T9692] batman_adv: batadv0: Not using interface ip6gretap299 (retrying later): interface not active [ 342.854547][ T9690] batman_adv: Cannot find parent device [ 342.863133][ T9690] batman_adv: batadv0: Adding interface: ip6gretap271 [ 342.871990][ T9690] batman_adv: batadv0: The MTU of interface ip6gretap271 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 342.912645][ T9690] batman_adv: batadv0: Not using interface ip6gretap271 (retrying later): interface not active [ 342.947589][ T9695] batman_adv: Cannot find parent device [ 342.965131][ T9696] batman_adv: Cannot find parent device 04:24:31 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5c000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:31 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x12000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:31 executing program 2: ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r0}]}, 0x48}}, 0x0) 04:24:31 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8dd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 343.213052][ T9708] batman_adv: Cannot find parent device [ 343.224363][ T9708] batman_adv: batadv0: Adding interface: ip6gretap272 [ 343.236197][ T9708] batman_adv: batadv0: The MTU of interface ip6gretap272 is too small (1434) 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. [ 343.276869][ T9708] batman_adv: batadv0: Not using interface ip6gretap272 (retrying later): interface not active [ 343.305402][ T9705] batman_adv: Cannot find parent device [ 343.315756][ T9705] batman_adv: batadv0: Adding interface: ip6gretap354 [ 343.325658][ T9705] batman_adv: batadv0: The MTU of interface ip6gretap354 is too small (1434) 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. [ 343.368203][ T9705] batman_adv: batadv0: Not using interface ip6gretap354 (retrying later): interface not active [ 343.401856][ T9709] batman_adv: Cannot find parent device [ 343.415265][ T9709] batman_adv: batadv0: Adding interface: ip6gretap300 [ 343.433110][ T9709] batman_adv: batadv0: The MTU of interface ip6gretap300 is too small (1434) 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. [ 343.482644][ T9709] batman_adv: batadv0: Not using interface ip6gretap300 (retrying later): interface not active [ 343.515202][ T9711] batman_adv: Cannot find parent device 04:24:32 executing program 2: ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r0}]}, 0x48}}, 0x0) 04:24:32 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8ed70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:32 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x190c0000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:32 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5cd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 343.842877][ T9718] batman_adv: Cannot find parent device [ 343.854246][ T9718] batman_adv: batadv0: Adding interface: ip6gretap301 [ 343.865496][ T9718] batman_adv: batadv0: The MTU of interface ip6gretap301 is too small (1434) 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. [ 343.923254][ T9718] batman_adv: batadv0: Not using interface ip6gretap301 (retrying later): interface not active [ 343.952281][ T9719] batman_adv: Cannot find parent device [ 343.971207][ T9719] batman_adv: batadv0: Adding interface: ip6gretap355 [ 343.989180][ T9719] batman_adv: batadv0: The MTU of interface ip6gretap355 is too small (1434) 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. [ 343.997947][ T1316] ieee802154 phy0 wpan0: encryption failed: -22 [ 344.041148][ T9719] batman_adv: batadv0: Not using interface ip6gretap355 (retrying later): interface not active [ 344.048059][ T1316] ieee802154 phy1 wpan1: encryption failed: -22 [ 344.077753][ T9723] batman_adv: Cannot find parent device [ 344.094924][ T9722] batman_adv: Cannot find parent device [ 344.108847][ T9722] batman_adv: batadv0: Adding interface: ip6gretap273 [ 344.119765][ T9722] batman_adv: batadv0: The MTU of interface ip6gretap273 is too small (1434) 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. [ 344.166928][ T9722] batman_adv: batadv0: Not using interface ip6gretap273 (retrying later): interface not active [ 344.186269][ T9725] __nla_validate_parse: 8 callbacks suppressed [ 344.186290][ T9725] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:32 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5dd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:32 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8fd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:32 executing program 2: r0 = socket(0x0, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:32 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x1f000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 344.409003][ T9729] batman_adv: Cannot find parent device [ 344.424335][ T9729] batman_adv: batadv0: Adding interface: ip6gretap356 [ 344.435934][ T9729] batman_adv: batadv0: The MTU of interface ip6gretap356 is too small (1434) 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. [ 344.483907][ T9729] batman_adv: batadv0: Not using interface ip6gretap356 (retrying later): interface not active [ 344.509276][ T9736] batman_adv: Cannot find parent device [ 344.525764][ T9736] batman_adv: batadv0: Adding interface: ip6gretap302 [ 344.538319][ T9736] batman_adv: batadv0: The MTU of interface ip6gretap302 is too small (1434) 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. [ 344.588440][ T9736] batman_adv: batadv0: Not using interface ip6gretap302 (retrying later): interface not active [ 344.615207][ T9735] batman_adv: Cannot find parent device [ 344.627732][ T9735] batman_adv: batadv0: Adding interface: ip6gretap274 [ 344.648018][ T9735] batman_adv: batadv0: The MTU of interface ip6gretap274 is too small (1434) 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. [ 344.699134][ T9735] batman_adv: batadv0: Not using interface ip6gretap274 (retrying later): interface not active [ 344.718845][ T9737] batman_adv: Cannot find parent device 04:24:33 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5ed80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:33 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x90d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:33 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x20000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:33 executing program 2: r0 = socket(0x0, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 344.973849][ T9753] batman_adv: Cannot find parent device [ 344.986516][ T9753] batman_adv: batadv0: Adding interface: ip6gretap303 [ 345.001808][ T9753] batman_adv: batadv0: The MTU of interface ip6gretap303 is too small (1434) 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. [ 345.068031][ T9753] batman_adv: batadv0: Not using interface ip6gretap303 (retrying later): interface not active [ 345.095746][ T9752] batman_adv: Cannot find parent device [ 345.109222][ T9752] batman_adv: batadv0: Adding interface: ip6gretap275 [ 345.123956][ T9752] batman_adv: batadv0: The MTU of interface ip6gretap275 is too small (1434) 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. [ 345.180973][ T9752] batman_adv: batadv0: Not using interface ip6gretap275 (retrying later): interface not active [ 345.207208][ T9756] batman_adv: Cannot find parent device [ 345.223321][ T9755] batman_adv: Cannot find parent device [ 345.233393][ T9758] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 345.336158][ T9760] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 345.522948][ T9765] batman_adv: Cannot find parent device [ 345.536837][ T9765] batman_adv: batadv0: Adding interface: ip6gretap304 [ 345.546810][ T9765] batman_adv: batadv0: The MTU of interface ip6gretap304 is too small (1434) 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. [ 345.600398][ T9765] batman_adv: batadv0: Not using interface ip6gretap304 (retrying later): interface not active [ 345.625411][ T9766] batman_adv: Cannot find parent device 04:24:34 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x5fd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:34 executing program 2: r0 = socket(0x0, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:34 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x91d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:34 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x21000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 345.672451][ T9768] batman_adv: Cannot find parent device [ 345.684816][ T9768] batman_adv: batadv0: Adding interface: ip6gretap276 [ 345.695115][ T9768] batman_adv: batadv0: The MTU of interface ip6gretap276 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 345.739942][ T9768] batman_adv: batadv0: Not using interface ip6gretap276 (retrying later): interface not active [ 345.760484][ T9769] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 345.852391][ T9770] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 345.876416][ T9772] batman_adv: Cannot find parent device [ 345.887237][ T9772] batman_adv: batadv0: Adding interface: ip6gretap358 [ 345.897419][ T9772] batman_adv: batadv0: The MTU of interface ip6gretap358 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 345.951775][ T9772] batman_adv: batadv0: Not using interface ip6gretap358 (retrying later): interface not active [ 345.991808][ T9776] batman_adv: Cannot find parent device 04:24:34 executing program 2: r0 = socket(0x10, 0x0, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:34 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x30020000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:34 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x92d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 346.011149][ T9774] batman_adv: Cannot find parent device [ 346.021299][ T9774] batman_adv: batadv0: Adding interface: ip6gretap305 [ 346.032288][ T9774] batman_adv: batadv0: The MTU of interface ip6gretap305 is too small (1434) 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. [ 346.070823][ T9774] batman_adv: batadv0: Not using interface ip6gretap305 (retrying later): interface not active [ 346.100079][ T9778] batman_adv: Cannot find parent device [ 346.114550][ T9778] batman_adv: batadv0: Adding interface: ip6gretap277 [ 346.125970][ T9778] batman_adv: batadv0: The MTU of interface ip6gretap277 is too small (1434) 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. [ 346.172111][ T9778] batman_adv: batadv0: Not using interface ip6gretap277 (retrying later): interface not active [ 346.192779][ T9783] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 346.215726][ T9784] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:34 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x60000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:35 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x30170000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:34 executing program 2: r0 = socket(0x10, 0x0, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:34 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x93d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 346.424687][ T9788] batman_adv: Cannot find parent device [ 346.434323][ T9788] batman_adv: batadv0: Adding interface: ip6gretap306 [ 346.445657][ T9788] batman_adv: batadv0: The MTU of interface ip6gretap306 is too small (1434) 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. [ 346.493860][ T9788] batman_adv: batadv0: Not using interface ip6gretap306 (retrying later): interface not active [ 346.520916][ T9792] batman_adv: Cannot find parent device [ 346.531430][ T9792] batman_adv: batadv0: Adding interface: ip6gretap359 [ 346.541756][ T9792] batman_adv: batadv0: The MTU of interface ip6gretap359 is too small (1434) 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. [ 346.577853][ T9792] batman_adv: batadv0: Not using interface ip6gretap359 (retrying later): interface not active [ 346.603427][ T9791] batman_adv: Cannot find parent device [ 346.614121][ T9791] batman_adv: batadv0: Adding interface: ip6gretap278 [ 346.623534][ T9791] batman_adv: batadv0: The MTU of interface ip6gretap278 is too small (1434) 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. [ 346.660368][ T9791] batman_adv: batadv0: Not using interface ip6gretap278 (retrying later): interface not active [ 346.687171][ T9789] batman_adv: Cannot find parent device [ 346.699415][ T9794] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 346.728892][ T9799] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:35 executing program 2: r0 = socket(0x10, 0x0, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:35 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x31170000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:35 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x60d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:35 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x94d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 346.875451][ T9804] batman_adv: Cannot find parent device [ 346.892730][ T9805] batman_adv: Cannot find parent device [ 346.909333][ T9805] batman_adv: batadv0: Adding interface: ip6gretap360 04:24:35 executing program 2: socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r0}]}, 0x48}}, 0x0) [ 346.919632][ T9805] batman_adv: batadv0: The MTU of interface ip6gretap360 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 346.964161][ T9805] batman_adv: batadv0: Not using interface ip6gretap360 (retrying later): interface not active [ 346.988015][ T9807] batman_adv: Cannot find parent device [ 346.999436][ T9807] batman_adv: batadv0: Adding interface: ip6gretap279 [ 347.011002][ T9807] batman_adv: batadv0: The MTU of interface ip6gretap279 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 347.052632][ T9807] batman_adv: batadv0: Not using interface ip6gretap279 (retrying later): interface not active [ 347.076571][ T9810] batman_adv: Cannot find parent device [ 347.086011][ T9810] batman_adv: batadv0: Adding interface: ip6gretap307 [ 347.095108][ T9810] batman_adv: batadv0: The MTU of interface ip6gretap307 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 347.127310][ T9810] batman_adv: batadv0: Not using interface ip6gretap307 (retrying later): interface not active 04:24:35 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x61020000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 347.148728][ T9811] batman_adv: Cannot find parent device [ 347.156767][ T9814] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:35 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x32170000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 347.196560][ T9817] batman_adv: Cannot find parent device 04:24:35 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x95d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 347.204916][ T9817] batman_adv: batadv0: Adding interface: ip6gretap361 [ 347.213961][ T9817] batman_adv: batadv0: The MTU of interface ip6gretap361 is too small (1434) 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. [ 347.247444][ T9817] batman_adv: batadv0: Not using interface ip6gretap361 (retrying later): interface not active 04:24:35 executing program 2: socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r0}]}, 0x48}}, 0x0) [ 347.269494][ T9819] batman_adv: Cannot find parent device [ 347.281399][ T9819] batman_adv: batadv0: Adding interface: ip6gretap280 [ 347.291927][ T9819] batman_adv: batadv0: The MTU of interface ip6gretap280 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 347.336868][ T9819] batman_adv: batadv0: Not using interface ip6gretap280 (retrying later): interface not active [ 347.371359][ T9823] batman_adv: Cannot find parent device [ 347.385190][ T9823] batman_adv: batadv0: Adding interface: ip6gretap308 04:24:36 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x61d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 347.395155][ T9823] batman_adv: batadv0: The MTU of interface ip6gretap308 is too small (1434) 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. [ 347.427370][ T9823] batman_adv: batadv0: Not using interface ip6gretap308 (retrying later): interface not active [ 347.450352][ T9822] batman_adv: Cannot find parent device 04:24:36 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x33170000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:36 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x96d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:36 executing program 2: socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r0}]}, 0x48}}, 0x0) [ 347.519795][ T9831] batman_adv: Cannot find parent device [ 347.531244][ T9831] batman_adv: batadv0: Adding interface: ip6gretap362 [ 347.541232][ T9831] batman_adv: batadv0: The MTU of interface ip6gretap362 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 347.576973][ T9831] batman_adv: batadv0: Not using interface ip6gretap362 (retrying later): interface not active [ 347.605122][ T9833] batman_adv: Cannot find parent device [ 347.619094][ T9837] batman_adv: Cannot find parent device [ 347.630719][ T9837] batman_adv: batadv0: Adding interface: ip6gretap281 [ 347.642108][ T9837] batman_adv: batadv0: The MTU of interface ip6gretap281 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 347.684580][ T9837] batman_adv: batadv0: Not using interface ip6gretap281 (retrying later): interface not active 04:24:36 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8}]}, 0x48}}, 0x0) 04:24:36 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x62d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 347.707993][ T9836] batman_adv: Cannot find parent device [ 347.719695][ T9836] batman_adv: batadv0: Adding interface: ip6gretap309 [ 347.732857][ T9836] batman_adv: batadv0: The MTU of interface ip6gretap309 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 347.778444][ T9836] batman_adv: batadv0: Not using interface ip6gretap309 (retrying later): interface not active [ 347.814348][ T9844] batman_adv: Cannot find parent device [ 347.824719][ T9844] batman_adv: batadv0: Adding interface: ip6gretap363 [ 347.833537][ T9844] batman_adv: batadv0: The MTU of interface ip6gretap363 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 347.868892][ T9844] batman_adv: batadv0: Not using interface ip6gretap363 (retrying later): interface not active [ 347.897448][ T9843] batman_adv: Cannot find parent device 04:24:36 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3a010000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:36 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x97000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:36 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x63d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:36 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8}]}, 0x48}}, 0x0) [ 347.997551][ T9849] batman_adv: Cannot find parent device [ 348.007352][ T9849] batman_adv: batadv0: Adding interface: ip6gretap364 [ 348.016335][ T9849] batman_adv: batadv0: The MTU of interface ip6gretap364 is too small (1434) 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. [ 348.054072][ T9849] batman_adv: batadv0: Not using interface ip6gretap364 (retrying later): interface not active [ 349.223332][ T9851] batman_adv: Cannot find parent device [ 349.243121][ T9851] batman_adv: batadv0: Adding interface: ip6gretap310 [ 349.254839][ T9851] batman_adv: batadv0: The MTU of interface ip6gretap310 is too small (1434) 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. [ 349.288261][ T9851] batman_adv: batadv0: Not using interface ip6gretap310 (retrying later): interface not active [ 349.308904][ T9851] syz-executor.0 (9851) used greatest stack depth: 21840 bytes left [ 349.311705][ T9855] __nla_validate_parse: 5 callbacks suppressed [ 349.311732][ T9855] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 349.366440][ T9860] batman_adv: Cannot find parent device [ 349.396413][ T9861] batman_adv: Cannot find parent device [ 349.409560][ T9861] batman_adv: batadv0: Adding interface: ip6gretap282 [ 349.425203][ T9861] batman_adv: batadv0: The MTU of interface ip6gretap282 is too small (1434) 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. [ 349.469933][ T9861] batman_adv: batadv0: Not using interface ip6gretap282 (retrying later): interface not active [ 349.546544][ T9862] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:38 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x97d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:38 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x64d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:38 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8}]}, 0x48}}, 0x0) [ 349.613941][ T9865] batman_adv: Cannot find parent device [ 349.629507][ T9865] batman_adv: batadv0: Adding interface: ip6gretap365 [ 349.644587][ T9865] batman_adv: batadv0: The MTU of interface ip6gretap365 is too small (1434) 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. [ 349.692262][ T9865] batman_adv: batadv0: Not using interface ip6gretap365 (retrying later): interface not active [ 349.723741][ T9868] batman_adv: Cannot find parent device [ 349.741751][ T9866] batman_adv: Cannot find parent device [ 349.755454][ T9866] batman_adv: batadv0: Adding interface: ip6gretap311 [ 349.766770][ T9866] batman_adv: batadv0: The MTU of interface ip6gretap311 is too small (1434) 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. [ 349.820869][ T9866] batman_adv: batadv0: Not using interface ip6gretap311 (retrying later): interface not active [ 349.852349][ T9871] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:38 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x65580000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:38 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x98d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:38 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x0, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:38 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x3f000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 349.968890][ T9873] batman_adv: Cannot find parent device [ 349.981542][ T9873] batman_adv: batadv0: Adding interface: ip6gretap366 [ 349.992172][ T9873] batman_adv: batadv0: The MTU of interface ip6gretap366 is too small (1434) 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. [ 350.051509][ T9873] batman_adv: batadv0: Not using interface ip6gretap366 (retrying later): interface not active [ 350.086931][ T9876] batman_adv: Cannot find parent device [ 350.100025][ T9876] batman_adv: batadv0: Adding interface: ip6gretap283 [ 350.112811][ T9876] batman_adv: batadv0: The MTU of interface ip6gretap283 is too small (1434) 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. [ 350.163442][ T9876] batman_adv: batadv0: Not using interface ip6gretap283 (retrying later): interface not active [ 350.199892][ T9878] batman_adv: Cannot find parent device [ 350.213745][ T9878] batman_adv: batadv0: Adding interface: ip6gretap312 [ 350.227603][ T9878] batman_adv: batadv0: The MTU of interface ip6gretap312 is too small (1434) 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. [ 350.287762][ T9878] batman_adv: batadv0: Not using interface ip6gretap312 (retrying later): interface not active [ 350.313554][ T9883] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:39 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x65d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:39 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x40000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:39 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x0, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 350.455314][ T9885] batman_adv: Cannot find parent device [ 350.467914][ T9885] batman_adv: batadv0: Adding interface: ip6gretap367 [ 350.479228][ T9885] batman_adv: batadv0: The MTU of interface ip6gretap367 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 350.535330][ T9885] batman_adv: batadv0: Not using interface ip6gretap367 (retrying later): interface not active [ 350.568227][ T9887] batman_adv: Cannot find parent device [ 350.580313][ T9887] batman_adv: batadv0: Adding interface: ip6gretap284 [ 350.592658][ T9887] batman_adv: batadv0: The MTU of interface ip6gretap284 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 350.642599][ T9887] batman_adv: batadv0: Not using interface ip6gretap284 (retrying later): interface not active [ 350.665577][ T9891] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 350.963562][ T9904] batman_adv: Cannot find parent device [ 350.972397][ T9904] batman_adv: batadv0: Adding interface: ip6gretap368 04:24:39 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x99d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:39 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x66d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:39 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x0, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 350.982472][ T9904] batman_adv: batadv0: The MTU of interface ip6gretap368 is too small (1434) 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. [ 351.021906][ T9904] batman_adv: batadv0: Not using interface ip6gretap368 (retrying later): interface not active [ 351.053106][ T9906] batman_adv: Cannot find parent device [ 351.065306][ T9906] batman_adv: batadv0: Adding interface: ip6gretap313 [ 351.075932][ T9906] batman_adv: batadv0: The MTU of interface ip6gretap313 is too small (1434) 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. [ 351.120600][ T9906] batman_adv: batadv0: Not using interface ip6gretap313 (retrying later): interface not active 04:24:39 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x42020000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:39 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9ad70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:39 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x67d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 351.269590][ T9913] batman_adv: Cannot find parent device [ 351.296091][ T9913] batman_adv: batadv0: Adding interface: ip6gretap369 [ 351.307513][ T9913] batman_adv: batadv0: The MTU of interface ip6gretap369 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 351.353938][ T9913] batman_adv: batadv0: Not using interface ip6gretap369 (retrying later): interface not active [ 351.384167][ T9914] batman_adv: Cannot find parent device 04:24:40 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 351.397947][ T9914] batman_adv: batadv0: Adding interface: ip6gretap285 04:24:40 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x68000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 351.409213][ T9914] batman_adv: batadv0: The MTU of interface ip6gretap285 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 351.454557][ T9914] batman_adv: batadv0: Not using interface ip6gretap285 (retrying later): interface not active [ 351.491042][ T9916] batman_adv: Cannot find parent device [ 351.500496][ T9916] batman_adv: batadv0: Adding interface: ip6gretap314 [ 351.510274][ T9916] batman_adv: batadv0: The MTU of interface ip6gretap314 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 351.542562][ T9916] batman_adv: batadv0: Not using interface ip6gretap314 (retrying later): interface not active 04:24:40 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:41 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:41 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 354.370841][ T9927] batman_adv: Cannot find parent device [ 354.384420][ T9927] batman_adv: batadv0: Adding interface: ip6gretap370 [ 354.402089][ T9927] batman_adv: batadv0: The MTU of interface ip6gretap370 is too small (1434) 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. [ 354.458697][ T9927] batman_adv: batadv0: Not using interface ip6gretap370 (retrying later): interface not active 04:24:43 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:43 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x48000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 354.660051][ T9932] batman_adv: Cannot find parent device [ 354.671096][ T9932] batman_adv: batadv0: Adding interface: ip6gretap286 04:24:43 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9bd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:43 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x68d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 354.689791][ T9932] batman_adv: batadv0: The MTU of interface ip6gretap286 is too small (1434) 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. [ 354.747888][ T9932] batman_adv: batadv0: Not using interface ip6gretap286 (retrying later): interface not active 04:24:43 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4a000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 354.827652][ T9936] batman_adv: Cannot find parent device [ 354.841753][ T9936] batman_adv: batadv0: Adding interface: ip6gretap371 04:24:43 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 354.852381][ T9936] batman_adv: batadv0: The MTU of interface ip6gretap371 is too small (1434) 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. [ 354.894630][ T9936] batman_adv: batadv0: Not using interface ip6gretap371 (retrying later): interface not active [ 354.922789][ T9937] batman_adv: Cannot find parent device [ 354.938078][ T9937] batman_adv: batadv0: Adding interface: ip6gretap315 [ 354.951020][ T9937] batman_adv: batadv0: The MTU of interface ip6gretap315 is too small (1434) 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. [ 354.991164][ T9937] batman_adv: batadv0: Not using interface ip6gretap315 (retrying later): interface not active [ 355.015776][ T9939] batman_adv: Cannot find parent device [ 355.031618][ T9939] batman_adv: batadv0: Adding interface: ip6gretap287 [ 355.042127][ T9939] batman_adv: batadv0: The MTU of interface ip6gretap287 is too small (1434) 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. [ 355.081685][ T9939] batman_adv: batadv0: Not using interface ip6gretap287 (retrying later): interface not active [ 355.109880][ T9943] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:43 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x4c000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:43 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x69d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:43 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, 0x0, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:43 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9cd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 355.373697][ T9954] batman_adv: Cannot find parent device [ 355.382687][ T9954] batman_adv: batadv0: Adding interface: ip6gretap288 [ 355.397140][ T9954] batman_adv: batadv0: The MTU of interface ip6gretap288 is too small (1434) 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. [ 355.437669][ T9954] batman_adv: batadv0: Not using interface ip6gretap288 (retrying later): interface not active [ 355.465868][ T9953] batman_adv: Cannot find parent device [ 355.477986][ T9953] batman_adv: batadv0: Adding interface: ip6gretap372 [ 355.491502][ T9953] batman_adv: batadv0: The MTU of interface ip6gretap372 is too small (1434) 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. [ 355.531168][ T9953] batman_adv: batadv0: Not using interface ip6gretap372 (retrying later): interface not active [ 355.551582][ T9955] batman_adv: Cannot find parent device [ 355.563894][ T9955] batman_adv: batadv0: Adding interface: ip6gretap316 [ 355.574720][ T9955] batman_adv: batadv0: The MTU of interface ip6gretap316 is too small (1434) 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. [ 355.613021][ T9955] batman_adv: batadv0: Not using interface ip6gretap316 (retrying later): interface not active [ 355.636313][ T9956] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 355.734415][ T9961] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:44 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x60000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:44 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, 0x0, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:44 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6ad80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 355.797985][ T9964] batman_adv: Cannot find parent device 04:24:44 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9dd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 355.806538][ T9964] batman_adv: batadv0: Adding interface: ip6gretap289 [ 355.818140][ T9964] batman_adv: batadv0: The MTU of interface ip6gretap289 is too small (1434) 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. [ 355.874005][ T9964] batman_adv: batadv0: Not using interface ip6gretap289 (retrying later): interface not active [ 355.906586][ T9967] batman_adv: Cannot find parent device [ 355.918760][ T9967] batman_adv: batadv0: Adding interface: ip6gretap373 [ 355.928371][ T9967] batman_adv: batadv0: The MTU of interface ip6gretap373 is too small (1434) 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. [ 355.970830][ T9967] batman_adv: batadv0: Not using interface ip6gretap373 (retrying later): interface not active [ 356.014009][ T9969] batman_adv: Cannot find parent device [ 356.032126][ T9969] batman_adv: batadv0: Adding interface: ip6gretap317 [ 356.043924][ T9969] batman_adv: batadv0: The MTU of interface ip6gretap317 is too small (1434) 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. [ 356.095719][ T9969] batman_adv: batadv0: Not using interface ip6gretap317 (retrying later): interface not active [ 356.176339][ T9975] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 356.353846][ T9980] batman_adv: Cannot find parent device [ 356.370675][ T9980] batman_adv: batadv0: Adding interface: ip6gretap374 04:24:44 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x65580000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:44 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, 0x0, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:44 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6bd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 356.385581][ T9980] batman_adv: batadv0: The MTU of interface ip6gretap374 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 356.435673][ T9980] batman_adv: batadv0: Not using interface ip6gretap374 (retrying later): interface not active 04:24:45 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9ed70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 356.471010][ T9981] batman_adv: Cannot find parent device [ 356.486300][ T9981] batman_adv: batadv0: Adding interface: ip6gretap290 [ 356.500926][ T9981] batman_adv: batadv0: The MTU of interface ip6gretap290 is too small (1434) 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. [ 356.536147][ T9981] batman_adv: batadv0: Not using interface ip6gretap290 (retrying later): interface not active [ 356.556476][ T9983] batman_adv: Cannot find parent device [ 356.565887][ T9983] batman_adv: batadv0: Adding interface: ip6gretap318 [ 356.575078][ T9983] batman_adv: batadv0: The MTU of interface ip6gretap318 is too small (1434) 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. [ 356.611608][ T9983] batman_adv: batadv0: Not using interface ip6gretap318 (retrying later): interface not active [ 356.627621][ T9987] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 356.710770][ T9988] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 357.075845][ T9993] batman_adv: Cannot find parent device [ 357.087011][ T9993] batman_adv: batadv0: Adding interface: ip6gretap319 [ 357.095946][ T9993] batman_adv: batadv0: The MTU of interface ip6gretap319 is too small (1434) 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. [ 357.130961][ T9993] batman_adv: batadv0: Not using interface ip6gretap319 (retrying later): interface not active 04:24:45 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, 0x0}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:45 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x68000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:45 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9effffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:45 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6c000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 357.155528][ T9994] batman_adv: Cannot find parent device [ 357.164689][ T9994] batman_adv: batadv0: Adding interface: ip6gretap291 [ 357.174908][ T9994] batman_adv: batadv0: The MTU of interface ip6gretap291 is too small (1434) 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. [ 357.219814][ T9994] batman_adv: batadv0: Not using interface ip6gretap291 (retrying later): interface not active [ 357.255993][ T9996] batman_adv: Cannot find parent device [ 357.269750][ T9996] batman_adv: batadv0: Adding interface: ip6gretap375 [ 357.281399][ T9996] batman_adv: batadv0: The MTU of interface ip6gretap375 is too small (1434) 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. [ 357.325001][ T9996] batman_adv: batadv0: Not using interface ip6gretap375 (retrying later): interface not active [ 357.343425][ T9998] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 357.368156][T10001] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:46 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, 0x0}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:46 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6c000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:46 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9fd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:46 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6cd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:46 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, 0x0}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 357.620682][T10006] batman_adv: Cannot find parent device [ 357.631474][T10006] batman_adv: batadv0: Adding interface: ip6gretap376 [ 357.641914][T10006] batman_adv: batadv0: The MTU of interface ip6gretap376 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 357.685286][T10006] batman_adv: batadv0: Not using interface ip6gretap376 (retrying later): interface not active [ 357.711100][T10010] batman_adv: Cannot find parent device [ 357.719661][T10010] batman_adv: batadv0: Adding interface: ip6gretap320 [ 357.729052][T10010] batman_adv: batadv0: The MTU of interface ip6gretap320 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 357.773182][T10010] batman_adv: batadv0: Not using interface ip6gretap320 (retrying later): interface not active [ 357.793757][T10011] batman_adv: Cannot find parent device [ 357.823922][T10015] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:46 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:46 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6dd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:46 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa0d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:46 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x74000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 358.017606][T10021] batman_adv: Cannot find parent device [ 358.027029][T10021] batman_adv: batadv0: Adding interface: ip6gretap377 [ 358.036885][T10021] batman_adv: batadv0: The MTU of interface ip6gretap377 is too small (1434) 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. [ 358.073649][T10021] batman_adv: batadv0: Not using interface ip6gretap377 (retrying later): interface not active [ 358.117513][T10024] batman_adv: Cannot find parent device [ 358.130712][T10024] batman_adv: batadv0: Adding interface: ip6gretap321 [ 358.143521][T10024] batman_adv: batadv0: The MTU of interface ip6gretap321 is too small (1434) 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. [ 358.184224][T10024] batman_adv: batadv0: Not using interface ip6gretap321 (retrying later): interface not active [ 358.211728][T10020] batman_adv: Cannot find parent device [ 358.222876][T10020] batman_adv: batadv0: Adding interface: ip6gretap293 [ 358.233965][T10020] batman_adv: batadv0: The MTU of interface ip6gretap293 is too small (1434) 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. [ 358.283161][T10020] batman_adv: batadv0: Not using interface ip6gretap293 (retrying later): interface not active [ 358.313481][T10026] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 358.499429][T10031] batman_adv: Cannot find parent device 04:24:47 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6ed80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:47 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa1d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:47 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 358.513023][T10031] batman_adv: batadv0: Adding interface: ip6gretap378 [ 358.524430][T10031] batman_adv: batadv0: The MTU of interface ip6gretap378 is too small (1434) 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. [ 358.565314][T10031] batman_adv: batadv0: Not using interface ip6gretap378 (retrying later): interface not active 04:24:47 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x74010000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 358.596356][T10030] batman_adv: Cannot find parent device [ 358.608270][T10030] batman_adv: batadv0: Adding interface: ip6gretap322 [ 358.618599][T10030] batman_adv: batadv0: The MTU of interface ip6gretap322 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 358.655679][T10030] batman_adv: batadv0: Not using interface ip6gretap322 (retrying later): interface not active [ 358.686762][T10035] batman_adv: Cannot find parent device [ 358.698841][T10035] batman_adv: batadv0: Adding interface: ip6gretap294 [ 358.712298][T10035] batman_adv: batadv0: The MTU of interface ip6gretap294 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 358.763559][T10035] batman_adv: batadv0: Not using interface ip6gretap294 (retrying later): interface not active [ 359.109078][T10046] batman_adv: Cannot find parent device [ 359.125632][T10046] batman_adv: batadv0: Adding interface: ip6gretap323 [ 359.136312][T10046] batman_adv: batadv0: The MTU of interface ip6gretap323 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 359.178575][T10046] batman_adv: batadv0: Not using interface ip6gretap323 (retrying later): interface not active 04:24:47 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa2d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:47 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7a000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:47 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:47 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x6fd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 359.205651][T10047] batman_adv: Cannot find parent device [ 359.220309][T10047] batman_adv: batadv0: Adding interface: ip6gretap295 [ 359.232106][T10047] batman_adv: batadv0: The MTU of interface ip6gretap295 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 359.283684][T10047] batman_adv: batadv0: Not using interface ip6gretap295 (retrying later): interface not active [ 359.315101][T10048] batman_adv: Cannot find parent device [ 359.325582][T10048] batman_adv: batadv0: Adding interface: ip6gretap379 [ 359.334716][T10048] batman_adv: batadv0: The MTU of interface ip6gretap379 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 359.387724][T10048] batman_adv: batadv0: Not using interface ip6gretap379 (retrying later): interface not active 04:24:48 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x81000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:48 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x70d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:48 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa3d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:48 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, 0x0, &(0x7f0000000200)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 359.654337][T10060] batman_adv: Cannot find parent device [ 359.663380][T10060] batman_adv: batadv0: Adding interface: ip6gretap380 [ 359.671790][T10060] batman_adv: batadv0: The MTU of interface ip6gretap380 is too small (1434) 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. [ 359.704260][T10060] batman_adv: batadv0: Not using interface ip6gretap380 (retrying later): interface not active [ 359.740016][T10061] batman_adv: Cannot find parent device [ 359.753095][T10061] batman_adv: batadv0: Adding interface: ip6gretap296 [ 359.765191][T10061] batman_adv: batadv0: The MTU of interface ip6gretap296 is too small (1434) 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. [ 359.810868][T10061] batman_adv: batadv0: Not using interface ip6gretap296 (retrying later): interface not active [ 359.839921][T10062] batman_adv: Cannot find parent device [ 359.852603][T10062] batman_adv: batadv0: Adding interface: ip6gretap324 [ 359.867927][T10062] batman_adv: batadv0: The MTU of interface ip6gretap324 is too small (1434) 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. [ 359.926496][T10062] batman_adv: batadv0: Not using interface ip6gretap324 (retrying later): interface not active [ 360.102940][T10070] batman_adv: Cannot find parent device [ 360.112028][T10070] batman_adv: batadv0: Adding interface: ip6gretap381 [ 360.121271][T10070] batman_adv: batadv0: The MTU of interface ip6gretap381 is too small (1434) 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. [ 360.164894][T10070] batman_adv: batadv0: Not using interface ip6gretap381 (retrying later): interface not active 04:24:48 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa4d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:48 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, 0x0, &(0x7f0000000200)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:48 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x71d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:48 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x88a8ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 360.194803][T10074] batman_adv: Cannot find parent device [ 360.204831][T10074] batman_adv: batadv0: Adding interface: ip6gretap325 [ 360.214745][T10074] batman_adv: batadv0: The MTU of interface ip6gretap325 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 360.257686][T10074] batman_adv: batadv0: Not using interface ip6gretap325 (retrying later): interface not active [ 360.285248][T10075] batman_adv: Cannot find parent device [ 360.298604][T10075] batman_adv: batadv0: Adding interface: ip6gretap297 [ 360.309811][T10075] batman_adv: batadv0: The MTU of interface ip6gretap297 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 360.364817][T10075] batman_adv: batadv0: Not using interface ip6gretap297 (retrying later): interface not active [ 360.386087][T10077] __nla_validate_parse: 3 callbacks suppressed [ 360.386112][T10077] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 360.429290][T10078] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:49 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x89800000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:49 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, 0x0, &(0x7f0000000200)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:49 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa5d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:49 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x729fc1c4, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:49 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 360.670353][T10082] batman_adv: Cannot find parent device [ 360.683085][T10082] batman_adv: batadv0: Adding interface: ip6gretap382 [ 360.694416][T10082] batman_adv: batadv0: The MTU of interface ip6gretap382 is too small (1434) 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. [ 360.739006][T10082] batman_adv: batadv0: Not using interface ip6gretap382 (retrying later): interface not active [ 360.772596][T10084] batman_adv: Cannot find parent device [ 360.785152][T10084] batman_adv: batadv0: Adding interface: ip6gretap326 [ 360.797290][T10084] batman_adv: batadv0: The MTU of interface ip6gretap326 is too small (1434) 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. [ 360.838319][T10084] batman_adv: batadv0: Not using interface ip6gretap326 (retrying later): interface not active [ 360.866971][T10086] batman_adv: Cannot find parent device [ 360.878139][T10086] batman_adv: batadv0: Adding interface: ip6gretap298 [ 360.890523][T10086] batman_adv: batadv0: The MTU of interface ip6gretap298 is too small (1434) 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. [ 360.937477][T10086] batman_adv: batadv0: Not using interface ip6gretap298 (retrying later): interface not active [ 360.964933][T10090] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 361.008946][T10091] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:49 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x72d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:49 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8c020000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:49 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa6d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 361.160644][T10094] batman_adv: Cannot find parent device [ 361.169282][T10094] batman_adv: batadv0: Adding interface: ip6gretap327 [ 361.179671][T10094] batman_adv: batadv0: The MTU of interface ip6gretap327 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 361.213415][T10094] batman_adv: batadv0: Not using interface ip6gretap327 (retrying later): interface not active 04:24:49 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 361.235587][T10098] batman_adv: Cannot find parent device [ 361.246631][T10098] batman_adv: batadv0: Adding interface: ip6gretap299 [ 361.254740][T10098] batman_adv: batadv0: The MTU of interface ip6gretap299 is too small (1434) 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. [ 361.288695][T10098] batman_adv: batadv0: Not using interface ip6gretap299 (retrying later): interface not active [ 361.312897][T10097] batman_adv: Cannot find parent device [ 361.321337][T10097] batman_adv: batadv0: Adding interface: ip6gretap383 [ 361.329811][T10097] batman_adv: batadv0: The MTU of interface ip6gretap383 is too small (1434) 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. [ 361.368428][T10097] batman_adv: batadv0: Not using interface ip6gretap383 (retrying later): interface not active [ 361.389880][T10100] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 361.457654][T10101] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:50 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:50 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9effffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:50 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x73d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 362.410094][T10107] batman_adv: Cannot find parent device [ 362.422013][T10107] batman_adv: batadv0: Adding interface: ip6gretap300 04:24:50 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa7d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 362.432636][T10107] batman_adv: batadv0: The MTU of interface ip6gretap300 is too small (1434) 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. [ 362.468063][T10107] batman_adv: batadv0: Not using interface ip6gretap300 (retrying later): interface not active [ 362.525882][T10112] batman_adv: Cannot find parent device [ 362.536632][T10112] batman_adv: batadv0: Adding interface: ip6gretap384 [ 362.546687][T10112] batman_adv: batadv0: The MTU of interface ip6gretap384 is too small (1434) 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. [ 362.583072][T10112] batman_adv: batadv0: Not using interface ip6gretap384 (retrying later): interface not active [ 362.613039][T10111] batman_adv: Cannot find parent device [ 362.633154][T10111] batman_adv: batadv0: Adding interface: ip6gretap328 [ 362.646243][T10111] batman_adv: batadv0: The MTU of interface ip6gretap328 is too small (1434) 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. [ 362.701977][T10111] batman_adv: batadv0: Not using interface ip6gretap328 (retrying later): interface not active 04:24:51 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x74000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:51 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:51 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xab756fd8, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:51 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa8d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 362.910755][T10119] batman_adv: Cannot find parent device [ 362.924316][T10119] batman_adv: batadv0: Adding interface: ip6gretap301 04:24:51 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 362.935403][T10119] batman_adv: batadv0: The MTU of interface ip6gretap301 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 362.978726][T10119] batman_adv: batadv0: Not using interface ip6gretap301 (retrying later): interface not active [ 363.007023][T10124] batman_adv: Cannot find parent device [ 363.018995][T10124] batman_adv: batadv0: Adding interface: ip6gretap385 04:24:51 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 363.029968][T10124] batman_adv: batadv0: The MTU of interface ip6gretap385 is too small (1434) 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. [ 363.081912][T10124] batman_adv: batadv0: Not using interface ip6gretap385 (retrying later): interface not active [ 363.112794][T10120] batman_adv: Cannot find parent device [ 363.124188][T10120] batman_adv: batadv0: Adding interface: ip6gretap329 04:24:51 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) [ 363.134925][T10120] batman_adv: batadv0: The MTU of interface ip6gretap329 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 363.173807][T10120] batman_adv: batadv0: Not using interface ip6gretap329 (retrying later): interface not active [ 363.193013][T10128] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 363.215910][T10138] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:51 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb0dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:51 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x74030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:51 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) 04:24:51 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xa9d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 363.382435][T10142] batman_adv: Cannot find parent device [ 363.392776][T10142] batman_adv: batadv0: Adding interface: ip6gretap330 04:24:52 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) [ 363.404744][T10142] batman_adv: batadv0: The MTU of interface ip6gretap330 is too small (1434) 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. [ 363.446538][T10142] batman_adv: batadv0: Not using interface ip6gretap330 (retrying later): interface not active [ 363.472455][T10146] batman_adv: Cannot find parent device [ 363.483069][T10146] batman_adv: batadv0: Adding interface: ip6gretap386 [ 363.493630][T10146] batman_adv: batadv0: The MTU of interface ip6gretap386 is too small (1434) 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. [ 363.532933][T10146] batman_adv: batadv0: Not using interface ip6gretap386 (retrying later): interface not active [ 364.932772][T10145] batman_adv: Cannot find parent device [ 364.945384][T10145] batman_adv: batadv0: Adding interface: ip6gretap302 [ 364.956396][T10145] batman_adv: batadv0: The MTU of interface ip6gretap302 is too small (1434) 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. [ 365.002857][T10145] batman_adv: batadv0: Not using interface ip6gretap302 (retrying later): interface not active [ 365.030129][T10154] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:53 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) 04:24:53 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb1dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:53 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xaad70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:53 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x74d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 365.402743][T10160] batman_adv: Cannot find parent device [ 365.412939][T10160] batman_adv: batadv0: Adding interface: ip6gretap387 [ 365.422940][T10160] batman_adv: batadv0: The MTU of interface ip6gretap387 is too small (1434) 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. [ 365.461926][T10160] batman_adv: batadv0: Not using interface ip6gretap387 (retrying later): interface not active [ 365.485438][T10162] batman_adv: Cannot find parent device [ 365.495555][T10162] batman_adv: batadv0: Adding interface: ip6gretap303 [ 365.504991][T10162] batman_adv: batadv0: The MTU of interface ip6gretap303 is too small (1434) 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. [ 365.543864][T10162] batman_adv: batadv0: Not using interface ip6gretap303 (retrying later): interface not active [ 365.576273][T10161] batman_adv: Cannot find parent device [ 365.666015][T10161] batman_adv: batadv0: Adding interface: ip6gretap331 [ 365.678251][T10161] batman_adv: batadv0: The MTU of interface ip6gretap331 is too small (1434) 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. [ 365.732830][T10161] batman_adv: batadv0: Not using interface ip6gretap331 (retrying later): interface not active [ 365.777539][T10165] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:54 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) 04:24:54 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb2dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:54 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x75d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:54 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xabd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 365.912777][T10171] batman_adv: Cannot find parent device [ 365.939579][T10171] batman_adv: batadv0: Adding interface: ip6gretap304 [ 365.952450][T10171] batman_adv: batadv0: The MTU of interface ip6gretap304 is too small (1434) 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. [ 365.998036][T10171] batman_adv: batadv0: Not using interface ip6gretap304 (retrying later): interface not active [ 366.027488][T10170] batman_adv: Cannot find parent device [ 366.038826][T10170] batman_adv: batadv0: Adding interface: ip6gretap388 [ 366.051154][T10170] batman_adv: batadv0: The MTU of interface ip6gretap388 is too small (1434) 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. [ 366.093430][T10170] batman_adv: batadv0: Not using interface ip6gretap388 (retrying later): interface not active [ 366.120019][T10173] batman_adv: Cannot find parent device [ 366.134033][T10173] batman_adv: batadv0: Adding interface: ip6gretap332 [ 366.160319][T10173] batman_adv: batadv0: The MTU of interface ip6gretap332 is too small (1434) 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. [ 366.211377][T10173] batman_adv: batadv0: Not using interface ip6gretap332 (retrying later): interface not active [ 366.271425][T10177] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 366.344496][T10181] batman_adv: Cannot find parent device [ 366.356150][T10181] batman_adv: batadv0: Adding interface: ip6gretap305 [ 366.367229][T10181] batman_adv: batadv0: The MTU of interface ip6gretap305 is too small (1434) 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. [ 366.411000][T10181] batman_adv: batadv0: Not using interface ip6gretap305 (retrying later): interface not active 04:24:54 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) 04:24:54 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb3dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 366.481648][T10183] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:55 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0}}, 0x0) 04:24:55 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xacd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:55 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x76d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 366.637879][T10189] batman_adv: Cannot find parent device [ 366.652548][T10189] batman_adv: batadv0: Adding interface: ip6gretap333 04:24:55 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0}}, 0x0) [ 366.665168][T10189] batman_adv: batadv0: The MTU of interface ip6gretap333 is too small (1434) 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. [ 366.717815][T10189] batman_adv: batadv0: Not using interface ip6gretap333 (retrying later): interface not active 04:24:55 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb4dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 366.752622][T10191] batman_adv: Cannot find parent device [ 366.766203][T10191] batman_adv: batadv0: Adding interface: ip6gretap389 [ 366.779737][T10191] batman_adv: batadv0: The MTU of interface ip6gretap389 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 366.830264][T10191] batman_adv: batadv0: Not using interface ip6gretap389 (retrying later): interface not active [ 366.867252][T10197] batman_adv: Cannot find parent device [ 366.899204][T10197] batman_adv: batadv0: Adding interface: ip6gretap306 [ 366.910777][T10197] batman_adv: batadv0: The MTU of interface ip6gretap306 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 366.952899][T10197] batman_adv: batadv0: Not using interface ip6gretap306 (retrying later): interface not active [ 367.150225][T10204] batman_adv: Cannot find parent device [ 367.162230][T10204] batman_adv: batadv0: Adding interface: ip6gretap334 04:24:55 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0}}, 0x0) 04:24:55 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb5dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:55 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xadd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:55 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x77d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 367.175180][T10204] batman_adv: batadv0: The MTU of interface ip6gretap334 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 367.215358][T10204] batman_adv: batadv0: Not using interface ip6gretap334 (retrying later): interface not active [ 367.242786][T10206] batman_adv: Cannot find parent device [ 367.256353][T10206] batman_adv: batadv0: Adding interface: ip6gretap307 [ 367.271315][T10206] batman_adv: batadv0: The MTU of interface ip6gretap307 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 367.325880][T10206] batman_adv: batadv0: Not using interface ip6gretap307 (retrying later): interface not active [ 367.353530][T10208] batman_adv: Cannot find parent device [ 367.364121][T10208] batman_adv: batadv0: Adding interface: ip6gretap390 [ 367.375831][T10208] batman_adv: batadv0: The MTU of interface ip6gretap390 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 367.416476][T10208] batman_adv: batadv0: Not using interface ip6gretap390 (retrying later): interface not active [ 367.430809][T10209] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:56 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xaed70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:56 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb6dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:56 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x78d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:56 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x0, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 367.659498][T10218] batman_adv: Cannot find parent device [ 367.671763][T10218] batman_adv: batadv0: Adding interface: ip6gretap308 [ 367.683456][T10218] batman_adv: batadv0: The MTU of interface ip6gretap308 is too small (1434) 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. [ 367.731937][T10218] batman_adv: batadv0: Not using interface ip6gretap308 (retrying later): interface not active [ 367.760790][T10220] batman_adv: Cannot find parent device [ 367.772257][T10220] batman_adv: batadv0: Adding interface: ip6gretap335 [ 367.785131][T10220] batman_adv: batadv0: The MTU of interface ip6gretap335 is too small (1434) 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. [ 367.827585][T10220] batman_adv: batadv0: Not using interface ip6gretap335 (retrying later): interface not active [ 367.865453][T10222] batman_adv: Cannot find parent device [ 367.881129][T10222] batman_adv: batadv0: Adding interface: ip6gretap391 [ 367.893841][T10222] batman_adv: batadv0: The MTU of interface ip6gretap391 is too small (1434) 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. [ 367.959407][T10222] batman_adv: batadv0: Not using interface ip6gretap391 (retrying later): interface not active [ 367.991884][T10224] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:57 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x79d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:57 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb7dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:57 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x0, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:57 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xafd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 368.464533][T10231] batman_adv: Cannot find parent device [ 368.479530][T10231] batman_adv: batadv0: Adding interface: ip6gretap309 [ 368.495552][T10231] batman_adv: batadv0: The MTU of interface ip6gretap309 is too small (1434) 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. [ 368.553182][T10231] batman_adv: batadv0: Not using interface ip6gretap309 (retrying later): interface not active [ 368.591538][T10233] batman_adv: Cannot find parent device [ 368.609423][T10233] batman_adv: batadv0: Adding interface: ip6gretap392 [ 368.620935][T10233] batman_adv: batadv0: The MTU of interface ip6gretap392 is too small (1434) 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. [ 368.679303][T10233] batman_adv: batadv0: Not using interface ip6gretap392 (retrying later): interface not active [ 368.708888][T10234] batman_adv: Cannot find parent device [ 368.724940][T10234] batman_adv: batadv0: Adding interface: ip6gretap336 [ 368.741219][T10234] batman_adv: batadv0: The MTU of interface ip6gretap336 is too small (1434) 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. [ 368.799282][T10234] batman_adv: batadv0: Not using interface ip6gretap336 (retrying later): interface not active [ 368.838892][T10236] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:24:57 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7a000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:57 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb0d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:57 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x0, 0x8100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:57 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb8dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 369.085253][T10244] batman_adv: Cannot find parent device [ 369.095960][T10244] batman_adv: batadv0: Adding interface: ip6gretap337 [ 369.108306][T10244] batman_adv: batadv0: The MTU of interface ip6gretap337 is too small (1434) 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. [ 369.165837][T10244] batman_adv: batadv0: Not using interface ip6gretap337 (retrying later): interface not active [ 369.197291][T10247] batman_adv: Cannot find parent device [ 369.207970][T10247] batman_adv: batadv0: Adding interface: ip6gretap393 [ 369.219204][T10247] batman_adv: batadv0: The MTU of interface ip6gretap393 is too small (1434) 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. [ 369.262736][T10247] batman_adv: batadv0: Not using interface ip6gretap393 (retrying later): interface not active [ 369.290946][T10248] batman_adv: Cannot find parent device [ 369.302552][T10248] batman_adv: batadv0: Adding interface: ip6gretap310 [ 369.313447][T10248] batman_adv: batadv0: The MTU of interface ip6gretap310 is too small (1434) 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. [ 369.358357][T10248] batman_adv: batadv0: Not using interface ip6gretap310 (retrying later): interface not active [ 369.375099][T10250] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:24:58 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb1d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:58 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7ad80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:58 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb9dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 369.571820][T10259] batman_adv: Cannot find parent device [ 369.584885][T10259] batman_adv: batadv0: Adding interface: ip6gretap338 [ 369.597474][T10259] batman_adv: batadv0: The MTU of interface ip6gretap338 is too small (1434) 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. [ 369.641380][T10259] batman_adv: batadv0: Not using interface ip6gretap338 (retrying later): interface not active [ 369.668398][T10262] batman_adv: Cannot find parent device [ 369.681104][T10262] batman_adv: batadv0: Adding interface: ip6gretap95 [ 369.692173][T10262] batman_adv: batadv0: The MTU of interface ip6gretap95 is too small (1434) 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. [ 369.739301][T10262] batman_adv: batadv0: Not using interface ip6gretap95 (retrying later): interface not active [ 369.772151][T10263] batman_adv: Cannot find parent device [ 369.785152][T10263] batman_adv: batadv0: Adding interface: ip6gretap311 [ 369.801516][T10263] batman_adv: batadv0: The MTU of interface ip6gretap311 is too small (1434) 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. [ 369.851558][T10263] batman_adv: batadv0: Not using interface ip6gretap311 (retrying later): interface not active [ 369.893814][T10264] batman_adv: Cannot find parent device [ 369.905871][T10264] batman_adv: batadv0: Adding interface: ip6gretap394 [ 369.917243][T10264] batman_adv: batadv0: The MTU of interface ip6gretap394 is too small (1434) 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. [ 369.971362][T10264] batman_adv: batadv0: Not using interface ip6gretap394 (retrying later): interface not active [ 370.009188][T10265] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 370.055703][T10267] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 370.242875][T10275] batman_adv: Cannot find parent device [ 370.257737][T10275] batman_adv: batadv0: Adding interface: ip6gretap339 [ 370.274319][T10275] batman_adv: batadv0: The MTU of interface ip6gretap339 is too small (1434) 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. [ 370.310659][T10275] batman_adv: batadv0: Not using interface ip6gretap339 (retrying later): interface not active [ 370.333123][T10273] batman_adv: Cannot find parent device [ 370.345439][T10273] batman_adv: batadv0: Adding interface: ip6gretap312 [ 370.367471][T10273] batman_adv: batadv0: The MTU of interface ip6gretap312 is too small (1434) 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. [ 370.417426][T10273] batman_adv: batadv0: Not using interface ip6gretap312 (retrying later): interface not active 04:24:58 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7bd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb2d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:58 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:58 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbadc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 370.446668][T10274] batman_adv: Cannot find parent device [ 370.463115][T10274] batman_adv: batadv0: Adding interface: ip6gretap395 [ 370.473823][T10274] batman_adv: batadv0: The MTU of interface ip6gretap395 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 370.535949][T10274] batman_adv: batadv0: Not using interface ip6gretap395 (retrying later): interface not active [ 370.564748][T10272] batman_adv: Cannot find parent device [ 370.576998][T10272] batman_adv: batadv0: Adding interface: ip6gretap96 [ 370.591016][T10272] batman_adv: batadv0: The MTU of interface ip6gretap96 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 370.652663][T10272] batman_adv: batadv0: Not using interface ip6gretap96 (retrying later): interface not active [ 370.673655][T10276] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 371.005544][T10287] batman_adv: Cannot find parent device 04:24:59 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7cd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:59 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb3d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:24:59 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x40, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}]}, 0x40}}, 0x0) 04:24:59 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbbdc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 371.021014][T10287] batman_adv: batadv0: Adding interface: ip6gretap340 [ 371.043620][T10287] batman_adv: batadv0: The MTU of interface ip6gretap340 is too small (1434) 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. [ 371.089666][T10287] batman_adv: batadv0: Not using interface ip6gretap340 (retrying later): interface not active [ 371.116680][T10286] batman_adv: Cannot find parent device [ 371.134084][T10286] batman_adv: batadv0: Adding interface: ip6gretap396 [ 371.146495][T10286] batman_adv: batadv0: The MTU of interface ip6gretap396 is too small (1434) 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. [ 371.205425][T10286] batman_adv: batadv0: Not using interface ip6gretap396 (retrying later): interface not active [ 371.238711][T10288] batman_adv: Cannot find parent device [ 371.257863][T10289] batman_adv: Cannot find parent device [ 371.271550][T10289] batman_adv: batadv0: Adding interface: ip6gretap313 [ 371.285158][T10289] batman_adv: batadv0: The MTU of interface ip6gretap313 is too small (1434) 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. [ 371.339744][T10289] batman_adv: batadv0: Not using interface ip6gretap313 (retrying later): interface not active [ 371.361118][T10291] __nla_validate_parse: 1 callbacks suppressed [ 371.361143][T10291] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:25:00 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbcdc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:00 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x40, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}]}, 0x40}}, 0x0) 04:25:00 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb4d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:00 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7dd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 371.567685][T10301] batman_adv: Cannot find parent device [ 371.578894][T10301] batman_adv: batadv0: Adding interface: ip6gretap314 [ 371.591990][T10301] batman_adv: batadv0: The MTU of interface ip6gretap314 is too small (1434) 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. [ 371.634254][T10301] batman_adv: batadv0: Not using interface ip6gretap314 (retrying later): interface not active [ 371.657446][T10298] batman_adv: Cannot find parent device [ 371.670274][T10298] batman_adv: batadv0: Adding interface: ip6gretap397 [ 371.682299][T10298] batman_adv: batadv0: The MTU of interface ip6gretap397 is too small (1434) 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. [ 371.736855][T10298] batman_adv: batadv0: Not using interface ip6gretap397 (retrying later): interface not active [ 371.765839][T10302] batman_adv: Cannot find parent device [ 371.784684][T10302] batman_adv: batadv0: Adding interface: ip6gretap341 [ 371.798857][T10302] batman_adv: batadv0: The MTU of interface ip6gretap341 is too small (1434) 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. [ 371.851295][T10302] batman_adv: batadv0: Not using interface ip6gretap341 (retrying later): interface not active [ 371.922553][T10306] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:25:00 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x40, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}]}, 0x40}}, 0x0) 04:25:00 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x81000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:00 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbddc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:00 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb5d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 372.066481][T10309] batman_adv: Cannot find parent device [ 372.078188][T10309] batman_adv: batadv0: Adding interface: ip6gretap398 [ 372.089919][T10309] batman_adv: batadv0: The MTU of interface ip6gretap398 is too small (1434) 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. [ 372.142847][T10309] batman_adv: batadv0: Not using interface ip6gretap398 (retrying later): interface not active [ 372.182585][T10313] batman_adv: Cannot find parent device [ 372.194628][T10313] batman_adv: batadv0: Adding interface: ip6gretap342 [ 372.206496][T10313] batman_adv: batadv0: The MTU of interface ip6gretap342 is too small (1434) 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. [ 372.253853][T10313] batman_adv: batadv0: Not using interface ip6gretap342 (retrying later): interface not active [ 372.280963][T10314] batman_adv: Cannot find parent device [ 372.298737][T10312] batman_adv: Cannot find parent device [ 372.311445][T10312] batman_adv: batadv0: Adding interface: ip6gretap315 [ 372.323163][T10312] batman_adv: batadv0: The MTU of interface ip6gretap315 is too small (1434) 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. [ 372.372510][T10312] batman_adv: batadv0: Not using interface ip6gretap315 (retrying later): interface not active 04:25:00 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8}]}, 0x48}}, 0x0) [ 372.393819][T10317] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:25:01 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x88a8ffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 372.422913][T10320] batman_adv: Cannot find parent device 04:25:01 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb6d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:01 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8}]}, 0x48}}, 0x0) 04:25:01 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbe010000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 372.513914][T10324] batman_adv: Cannot find parent device [ 372.522649][T10324] batman_adv: batadv0: Adding interface: ip6gretap399 [ 372.531408][T10324] batman_adv: batadv0: The MTU of interface ip6gretap399 is too small (1434) 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. [ 372.566238][T10324] batman_adv: batadv0: Not using interface ip6gretap399 (retrying later): interface not active [ 375.399929][T10328] batman_adv: Cannot find parent device [ 375.415208][T10328] batman_adv: batadv0: Adding interface: ip6gretap316 [ 375.429564][T10328] batman_adv: batadv0: The MTU of interface ip6gretap316 is too small (1434) 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. [ 375.471109][T10328] batman_adv: batadv0: Not using interface ip6gretap316 (retrying later): interface not active [ 375.517718][T10329] batman_adv: Cannot find parent device [ 375.532531][T10329] batman_adv: batadv0: Adding interface: ip6gretap343 [ 375.544112][T10329] batman_adv: batadv0: The MTU of interface ip6gretap343 is too small (1434) 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. [ 375.586737][T10329] batman_adv: batadv0: Not using interface ip6gretap343 (retrying later): interface not active [ 375.607996][T10331] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 375.637502][T10334] batman_adv: Cannot find parent device [ 376.862582][T10323] syz-executor.1: vmalloc error: size 4096, page order 0, failed to allocate pages, mode:0xdc0(GFP_KERNEL|__GFP_ZERO), nodemask=(null),cpuset=syz1,mems_allowed=0-1 [ 376.918054][T10323] CPU: 2 PID: 10323 Comm: syz-executor.1 Not tainted 5.15.0-syzkaller #0 [ 376.938539][T10323] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 376.967060][T10323] Call Trace: [ 376.972804][T10323] [ 376.999978][T10323] dump_stack_lvl+0xcd/0x134 [ 377.007226][T10323] warn_alloc.cold+0x87/0x17a [ 377.018929][T10323] ? zone_watermark_ok_safe+0x290/0x290 [ 377.037407][T10323] ? __kmalloc_node+0x62/0x390 [ 377.046319][T10323] ? __vmalloc_node_range+0x574/0xab0 [ 377.056391][T10323] __vmalloc_node_range+0x883/0xab0 [ 377.067082][T10323] ? vfree_atomic+0xe0/0xe0 [ 377.075442][T10323] ? rcu_read_lock_sched_held+0x3a/0x70 [ 377.089505][T10323] ? kernel_clone+0xe7/0xab0 [ 377.096064][T10323] copy_process+0x926/0x75a0 [ 377.105188][T10323] ? kernel_clone+0xe7/0xab0 [ 377.114042][T10323] ? lock_chain_count+0x20/0x20 [ 377.122284][T10323] ? lock_chain_count+0x20/0x20 [ 377.133907][T10323] ? find_held_lock+0x2d/0x110 [ 377.146016][T10323] ? __cleanup_sighand+0xb0/0xb0 [ 377.154285][T10323] ? kernel_clone+0x314/0xab0 [ 377.161950][T10323] kernel_clone+0xe7/0xab0 [ 377.168989][T10323] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 377.181673][T10323] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 377.191307][T10323] ? create_io_thread+0xf0/0xf0 [ 377.198370][T10323] ? find_held_lock+0x2d/0x110 [ 377.206417][T10323] __do_compat_sys_ia32_clone+0xac/0xe0 [ 377.216345][T10323] ? pci_biosrom_size+0x90/0x90 [ 377.223772][T10323] ? syscall_enter_from_user_mode+0x21/0x70 [ 377.232018][T10323] ? lockdep_hardirqs_on+0x79/0x100 [ 377.240501][T10323] ? syscall_enter_from_user_mode+0x21/0x70 [ 377.248410][T10323] do_int80_syscall_32+0x46/0x90 [ 377.255477][T10323] entry_INT80_compat+0x71/0x76 [ 377.264405][T10323] RIP: 0023:0xf6ef8dd4 [ 377.270692][T10323] Code: 8b 44 24 04 89 41 08 c7 41 04 00 00 00 00 53 56 57 8b 74 24 24 8b 54 24 20 8b 5c 24 18 8b 7c 24 28 b8 78 00 00 00 89 19 cd 80 <5f> 5e 5b 85 c0 0f 8c 61 81 00 00 74 01 c3 89 f5 ff d3 e8 00 00 00 [ 377.304206][T10323] RSP: 002b:00000000ffcce920 EFLAGS: 00000292 ORIG_RAX: 0000000000000078 [ 377.319465][T10323] RAX: ffffffffffffffda RBX: 00000000003d0f00 RCX: 00000000f44557a4 [ 377.336419][T10323] RDX: 00000000f4455ba8 RSI: 00000000ffcce96c RDI: 00000000f4455ba8 [ 377.349761][T10323] RBP: 00000000f6fd3000 R08: 0000000000000000 R09: 0000000000000000 [ 377.364825][T10323] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 [ 377.378339][T10323] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 377.391725][T10323] [ 377.398054][T10323] Mem-Info: [ 377.405798][T10323] active_anon:820 inactive_anon:142532 isolated_anon:0 [ 377.405798][T10323] active_file:642 inactive_file:517 isolated_file:0 [ 377.405798][T10323] unevictable:768 dirty:41 writeback:0 [ 377.405798][T10323] slab_reclaimable:13867 slab_unreclaimable:75952 [ 377.405798][T10323] mapped:35354 shmem:1766 pagetables:888 bounce:0 [ 377.405798][T10323] kernel_misc_reclaimable:0 [ 377.405798][T10323] free:21069 free_pcp:1106 free_cma:0 [ 377.498126][T10323] Node 0 active_anon:2904kB inactive_anon:181240kB active_file:92kB inactive_file:12kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:108kB dirty:0kB writeback:0kB shmem:4240kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 61440kB writeback_tmp:0kB kernel_stack:8656kB pagetables:1244kB all_unreclaimable? no 04:25:06 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb7d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 377.551788][T10323] Node 1 active_anon:376kB inactive_anon:388888kB active_file:3220kB inactive_file:4264kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:143452kB dirty:164kB writeback:0kB shmem:2824kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB kernel_stack:1456kB pagetables:2308kB all_unreclaimable? no 04:25:06 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbedc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:06 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r3}]}}}, @IFLA_MASTER={0x8}]}, 0x48}}, 0x0) [ 377.608061][T10323] Node 0 DMA free:2516kB boost:0kB min:720kB low:900kB high:1080kB reserved_highatomic:0KB active_anon:4kB inactive_anon:11620kB active_file:0kB inactive_file:196kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 377.664715][T10323] lowmem_reserve[]: 0 455 455 455 455 [ 377.671767][T10339] batman_adv: Cannot find parent device [ 377.675340][T10323] Node 0 DMA32 free:22460kB boost:0kB min:21928kB low:27408kB high:32888kB reserved_highatomic:8192KB active_anon:2900kB inactive_anon:169620kB active_file:192kB inactive_file:4kB unevictable:1536kB writepending:0kB present:1032192kB managed:473848kB mlocked:0kB bounce:0kB free_pcp:1188kB local_pcp:160kB free_cma:0kB [ 377.675402][T10323] lowmem_reserve[]: 0 0 0 0 0 [ 377.675439][T10323] Node 1 DMA32 free:55112kB boost:0kB min:44928kB low:56160kB high:67392kB reserved_highatomic:0KB active_anon:376kB inactive_anon:388888kB active_file:4124kB inactive_file:3880kB unevictable:1536kB writepending:164kB present:1048436kB managed:954820kB mlocked:0kB bounce:0kB free_pcp:2704kB local_pcp:472kB free_cma:0kB [ 377.675494][T10323] lowmem_reserve[]: 0 0 0 0 0 [ 377.675531][T10323] Node 0 DMA: 2*4kB (ME) 9*8kB (ME) 12*16kB (UME) 12*32kB (ME) 5*64kB (E) 6*128kB (ME) 3*256kB (UME) 0*512kB 0*1024kB 0*2048kB [ 377.687626][T10339] batman_adv: batadv0: Adding interface: ip6gretap344 [ 377.725375][T10323] 0*4096kB = 2512kB [ 377.725405][T10323] Node 0 DMA32: 636*4kB (UMEH) [ 377.737693][T10339] batman_adv: batadv0: The MTU of interface ip6gretap344 is too small (1434) 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. [ 377.787445][T10323] 493*8kB (UMEH) 109*16kB (UMEH) 144*32kB (UMEH) 39*64kB [ 377.795551][T10339] batman_adv: batadv0: Not using interface ip6gretap344 (retrying later): interface not active [ 377.815175][T10323] (UMEH) [ 377.847028][T10343] batman_adv: Cannot find parent device [ 377.886082][T10323] 9*128kB (UMEH) 3*256kB (ME) 2*512kB (UM) 2*1024kB (M) 1*2048kB (M) 0*4096kB = 22376kB [ 377.886327][T10323] Node 1 DMA32: 692*4kB (UME) 1264*8kB (UME) 719*16kB [ 377.920467][T10347] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 377.924131][T10323] (UME) [ 377.969849][T10344] batman_adv: Cannot find parent device [ 377.985782][T10323] 540*32kB (UME) 159*64kB (UME) 40*128kB (UM) 8*256kB (UM) 2*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 60032kB [ 377.986135][T10323] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 377.986205][T10323] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 377.986237][T10323] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 377.986265][T10323] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 377.986294][T10323] 2710 total pagecache pages [ 377.986310][T10323] 0 pages in swap cache [ 377.986358][T10323] Swap cache stats: add 0, delete 0, find 0/0 [ 377.986424][T10323] Free swap = 0kB [ 377.986443][T10323] Total swap = 0kB [ 377.986454][T10323] 524155 pages RAM [ 377.986549][T10323] 0 pages HighMem/MovableOnly [ 377.986561][T10323] 163148 pages reserved [ 377.986574][T10323] 0 pages cma reserved 04:25:06 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbfdc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:06 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb8d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:06 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x89800000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:06 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x28, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xa, r1}]}, 0x28}}, 0x0) [ 378.296726][T10353] batman_adv: Cannot find parent device [ 378.307501][T10353] batman_adv: batadv0: Adding interface: ip6gretap318 [ 378.317574][T10353] batman_adv: batadv0: The MTU of interface ip6gretap318 is too small (1434) 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. [ 378.356559][T10353] batman_adv: batadv0: Not using interface ip6gretap318 (retrying later): interface not active [ 378.383477][T10352] batman_adv: Cannot find parent device [ 378.395594][T10352] batman_adv: batadv0: Adding interface: ip6gretap400 [ 378.407009][T10352] batman_adv: batadv0: The MTU of interface ip6gretap400 is too small (1434) 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. [ 378.451066][T10352] batman_adv: batadv0: Not using interface ip6gretap400 (retrying later): interface not active [ 378.478331][T10355] batman_adv: Cannot find parent device [ 378.496398][T10355] batman_adv: batadv0: Adding interface: ip6gretap345 [ 378.506803][T10355] batman_adv: batadv0: The MTU of interface ip6gretap345 is too small (1434) 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. [ 378.543828][T10355] batman_adv: batadv0: Not using interface ip6gretap345 (retrying later): interface not active [ 378.600310][T10360] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 378.754576][T10363] batman_adv: Cannot find parent device 04:25:07 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x28, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xa, r1}]}, 0x28}}, 0x0) 04:25:07 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc0dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:07 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x8c000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 378.766051][T10363] batman_adv: batadv0: Adding interface: ip6gretap319 04:25:07 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb9d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 378.776837][T10363] batman_adv: batadv0: The MTU of interface ip6gretap319 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 378.815640][T10363] batman_adv: batadv0: Not using interface ip6gretap319 (retrying later): interface not active [ 378.841334][T10368] batman_adv: Cannot find parent device [ 378.853035][T10368] batman_adv: batadv0: Adding interface: ip6gretap346 [ 378.865368][T10368] batman_adv: batadv0: The MTU of interface ip6gretap346 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 378.925670][T10368] batman_adv: batadv0: Not using interface ip6gretap346 (retrying later): interface not active [ 378.970981][T10369] batman_adv: Cannot find parent device [ 378.984989][T10372] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 378.999553][T10374] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:25:08 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc1dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:08 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x28, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xa, r1}]}, 0x28}}, 0x0) 04:25:08 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbad70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 379.606454][T10383] batman_adv: Cannot find parent device [ 379.617566][T10383] batman_adv: batadv0: Adding interface: ip6gretap347 [ 379.628610][T10383] batman_adv: batadv0: The MTU of interface ip6gretap347 is too small (1434) 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. [ 379.681442][T10383] batman_adv: batadv0: Not using interface ip6gretap347 (retrying later): interface not active [ 379.707640][T10381] batman_adv: Cannot find parent device [ 379.720469][T10381] batman_adv: batadv0: Adding interface: ip6gretap320 [ 379.735116][T10381] batman_adv: batadv0: The MTU of interface ip6gretap320 is too small (1434) 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. [ 379.772464][T10381] batman_adv: batadv0: Not using interface ip6gretap320 (retrying later): interface not active [ 379.837589][T10385] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:25:08 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x97000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:08 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc2dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:08 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x40, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x18, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0x4}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x40}}, 0x0) 04:25:08 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbbd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 379.993101][T10390] batman_adv: Cannot find parent device [ 380.004821][T10390] batman_adv: batadv0: Adding interface: ip6gretap402 [ 380.016014][T10390] batman_adv: batadv0: The MTU of interface ip6gretap402 is too small (1434) 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. [ 380.057172][T10390] batman_adv: batadv0: Not using interface ip6gretap402 (retrying later): interface not active 04:25:08 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x40, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x18, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0x4}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x40}}, 0x0) [ 380.084101][T10392] batman_adv: Cannot find parent device [ 380.097802][T10392] batman_adv: batadv0: Adding interface: ip6gretap321 [ 380.108212][T10392] batman_adv: batadv0: The MTU of interface ip6gretap321 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 380.149009][T10392] batman_adv: batadv0: Not using interface ip6gretap321 (retrying later): interface not active [ 380.173542][T10394] batman_adv: Cannot find parent device [ 380.184703][T10394] batman_adv: batadv0: Adding interface: ip6gretap348 [ 380.201060][T10394] batman_adv: batadv0: The MTU of interface ip6gretap348 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 380.239533][T10394] batman_adv: batadv0: Not using interface ip6gretap348 (retrying later): interface not active [ 380.282496][T10397] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 380.300119][T10398] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:25:09 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x40, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x18, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0x4}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x40}}, 0x0) 04:25:09 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc3dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:09 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x9effffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:09 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbcd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 380.681296][T10401] batman_adv: Cannot find parent device [ 380.690335][T10401] batman_adv: batadv0: Adding interface: ip6gretap403 [ 380.700470][T10401] batman_adv: batadv0: The MTU of interface ip6gretap403 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 380.739241][T10401] batman_adv: batadv0: Not using interface ip6gretap403 (retrying later): interface not active [ 380.765721][T10404] batman_adv: Cannot find parent device [ 380.776694][T10404] batman_adv: batadv0: Adding interface: ip6gretap349 [ 380.788066][T10404] batman_adv: batadv0: The MTU of interface ip6gretap349 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 380.833123][T10404] batman_adv: batadv0: Not using interface ip6gretap349 (retrying later): interface not active [ 380.864118][T10406] batman_adv: Cannot find parent device [ 380.872893][T10406] batman_adv: batadv0: Adding interface: ip6gretap322 [ 380.885450][T10406] batman_adv: batadv0: The MTU of interface ip6gretap322 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 380.937073][T10406] batman_adv: batadv0: Not using interface ip6gretap322 (retrying later): interface not active 04:25:09 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc3ffffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:09 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:09 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc3ffffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:09 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbdd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 381.111605][T10413] batman_adv: Cannot find parent device [ 381.124418][T10413] batman_adv: batadv0: Adding interface: ip6gretap404 [ 381.140003][T10413] batman_adv: batadv0: The MTU of interface ip6gretap404 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 381.181696][T10413] batman_adv: batadv0: Not using interface ip6gretap404 (retrying later): interface not active [ 381.204692][T10416] batman_adv: Cannot find parent device [ 381.213043][T10416] batman_adv: batadv0: Adding interface: ip6gretap350 [ 381.222767][T10416] batman_adv: batadv0: The MTU of interface ip6gretap350 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 381.262919][T10416] batman_adv: batadv0: Not using interface ip6gretap350 (retrying later): interface not active 04:25:09 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc4c19f72, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 381.295578][T10418] batman_adv: Cannot find parent device [ 381.307003][T10418] batman_adv: batadv0: Adding interface: ip6gretap323 [ 381.317089][T10418] batman_adv: batadv0: The MTU of interface ip6gretap323 is too small (1434) 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. [ 381.355060][T10418] batman_adv: batadv0: Not using interface ip6gretap323 (retrying later): interface not active [ 381.386738][T10423] batman_adv: Cannot find parent device 04:25:10 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 381.400001][T10423] batman_adv: batadv0: Adding interface: ip6gretap405 [ 381.412267][T10423] batman_adv: batadv0: The MTU of interface ip6gretap405 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 381.464009][T10423] batman_adv: batadv0: Not using interface ip6gretap405 (retrying later): interface not active [ 381.482673][T10424] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 381.497550][T10427] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:25:10 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbe010000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:10 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xd4030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:10 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 381.612360][T10431] batman_adv: Cannot find parent device 04:25:10 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc4dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 381.637385][T10431] batman_adv: batadv0: Adding interface: ip6gretap351 [ 381.648675][T10431] batman_adv: batadv0: The MTU of interface ip6gretap351 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 381.693102][T10431] batman_adv: batadv0: Not using interface ip6gretap351 (retrying later): interface not active [ 381.724261][T10434] batman_adv: Cannot find parent device [ 381.737084][T10434] batman_adv: batadv0: Adding interface: ip6gretap406 [ 381.748855][T10434] batman_adv: batadv0: The MTU of interface ip6gretap406 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 381.786469][T10434] batman_adv: batadv0: Not using interface ip6gretap406 (retrying later): interface not active [ 381.820417][T10437] batman_adv: Cannot find parent device [ 381.836854][T10437] batman_adv: batadv0: Adding interface: ip6gretap324 04:25:10 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb5d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 381.855929][T10437] batman_adv: batadv0: The MTU of interface ip6gretap324 is too small (1434) 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. [ 381.895674][T10437] batman_adv: batadv0: Not using interface ip6gretap324 (retrying later): interface not active [ 381.923570][T10441] batman_adv: Cannot find parent device [ 381.934413][T10441] batman_adv: batadv0: Adding interface: ip6gretap102 [ 381.945068][T10441] batman_adv: batadv0: The MTU of interface ip6gretap102 is too small (1434) 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. [ 381.989064][T10441] batman_adv: batadv0: Not using interface ip6gretap102 (retrying later): interface not active [ 382.008850][T10438] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:25:10 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbed70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:10 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc5dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:10 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xd6000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:10 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xd4030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 382.125535][T10448] batman_adv: Cannot find parent device [ 382.135543][T10448] batman_adv: batadv0: Adding interface: ip6gretap352 [ 382.146525][T10448] batman_adv: batadv0: The MTU of interface ip6gretap352 is too small (1434) 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. [ 382.181178][T10448] batman_adv: batadv0: Not using interface ip6gretap352 (retrying later): interface not active [ 382.204958][T10449] batman_adv: Cannot find parent device [ 382.216242][T10449] batman_adv: batadv0: Adding interface: ip6gretap407 [ 382.224866][T10449] batman_adv: batadv0: The MTU of interface ip6gretap407 is too small (1434) 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. [ 382.258819][T10449] batman_adv: batadv0: Not using interface ip6gretap407 (retrying later): interface not active [ 385.992930][T10445] batman_adv: Cannot find parent device [ 386.022126][T10445] batman_adv: batadv0: Adding interface: ip6gretap325 [ 386.045553][T10445] batman_adv: batadv0: The MTU of interface ip6gretap325 is too small (1434) 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. [ 386.145890][T10445] batman_adv: batadv0: Not using interface ip6gretap325 (retrying later): interface not active [ 386.187387][T10451] batman_adv: Cannot find parent device [ 386.202441][T10451] batman_adv: batadv0: Adding interface: ip6gretap103 [ 386.203424][T10445] syz-executor.3 (10445) used greatest stack depth: 21392 bytes left [ 386.212177][T10451] batman_adv: batadv0: The MTU of interface ip6gretap103 is too small (1434) 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. [ 386.280298][T10451] batman_adv: batadv0: Not using interface ip6gretap103 (retrying later): interface not active [ 386.328686][T10455] __nla_validate_parse: 1 callbacks suppressed [ 386.328748][T10455] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:25:14 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xda010000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:14 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xd4030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:14 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xbfd70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 386.374099][T10458] batman_adv: Cannot find parent device [ 386.389455][T10458] batman_adv: batadv0: Adding interface: ip6gretap408 04:25:15 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc6dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 386.399044][T10458] batman_adv: batadv0: The MTU of interface ip6gretap408 is too small (1434) 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. [ 386.445528][T10458] batman_adv: batadv0: Not using interface ip6gretap408 (retrying later): interface not active [ 386.477550][T10462] batman_adv: Cannot find parent device [ 386.488964][T10462] batman_adv: batadv0: Adding interface: ip6gretap353 [ 386.498343][T10462] batman_adv: batadv0: The MTU of interface ip6gretap353 is too small (1434) 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. [ 386.535797][T10462] batman_adv: batadv0: Not using interface ip6gretap353 (retrying later): interface not active [ 386.559804][T10460] batman_adv: Cannot find parent device 04:25:15 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xe4ffffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 386.569214][T10460] batman_adv: batadv0: Adding interface: ip6gretap104 [ 386.578095][T10460] batman_adv: batadv0: The MTU of interface ip6gretap104 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 386.616255][T10460] batman_adv: batadv0: Not using interface ip6gretap104 (retrying later): interface not active [ 386.643016][T10464] batman_adv: Cannot find parent device [ 386.652963][T10464] batman_adv: batadv0: Adding interface: ip6gretap326 [ 386.662875][T10464] batman_adv: batadv0: The MTU of interface ip6gretap326 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 04:25:15 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb4d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 386.699787][T10464] batman_adv: batadv0: Not using interface ip6gretap326 (retrying later): interface not active [ 386.716542][T10467] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 386.752847][T10469] batman_adv: Cannot find parent device [ 386.764471][T10469] batman_adv: batadv0: Adding interface: ip6gretap409 04:25:15 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc0d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 386.776055][T10469] batman_adv: batadv0: The MTU of interface ip6gretap409 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 386.815648][T10469] batman_adv: batadv0: Not using interface ip6gretap409 (retrying later): interface not active [ 386.848632][T10471] batman_adv: Cannot find parent device 04:25:15 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc7dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 390.752221][T10471] batman_adv: batadv0: Adding interface: ip6gretap105 [ 390.761346][T10471] batman_adv: batadv0: The MTU of interface ip6gretap105 is too small (1434) 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. [ 390.817250][T10471] batman_adv: batadv0: Not using interface ip6gretap105 (retrying later): interface not active [ 390.965942][T10481] batman_adv: Cannot find parent device [ 390.975010][T10481] batman_adv: batadv0: Adding interface: ip6gretap327 [ 390.984008][T10481] batman_adv: batadv0: The MTU of interface ip6gretap327 is too small (1434) 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. [ 391.037202][T10481] batman_adv: batadv0: Not using interface ip6gretap327 (retrying later): interface not active [ 391.092419][T10482] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:25:19 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xe8000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:19 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb4d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:19 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc1d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 391.422318][T10485] batman_adv: Cannot find parent device 04:25:20 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc8dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 391.435758][T10485] batman_adv: batadv0: Adding interface: ip6gretap410 [ 391.446747][T10485] batman_adv: batadv0: The MTU of interface ip6gretap410 is too small (1434) 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. [ 391.489421][T10485] batman_adv: batadv0: Not using interface ip6gretap410 (retrying later): interface not active [ 391.520511][T10491] batman_adv: Cannot find parent device [ 391.540415][T10490] batman_adv: Cannot find parent device [ 391.552271][T10490] batman_adv: batadv0: Adding interface: ip6gretap328 [ 391.575498][T10490] batman_adv: batadv0: The MTU of interface ip6gretap328 is too small (1434) 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. [ 391.622104][T10490] batman_adv: batadv0: Not using interface ip6gretap328 (retrying later): interface not active [ 391.646406][T10488] batman_adv: Cannot find parent device [ 391.659811][T10488] batman_adv: batadv0: Adding interface: ip6gretap106 [ 391.679175][T10488] batman_adv: batadv0: The MTU of interface ip6gretap106 is too small (1434) 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. [ 391.723941][T10488] batman_adv: batadv0: Not using interface ip6gretap106 (retrying later): interface not active 04:25:20 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xee030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:20 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc9dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:20 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x7cd80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 392.030699][T10499] batman_adv: Cannot find parent device [ 392.055443][T10499] batman_adv: batadv0: Adding interface: ip6gretap329 [ 392.066259][T10499] batman_adv: batadv0: The MTU of interface ip6gretap329 is too small (1434) 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. [ 392.106405][T10499] batman_adv: batadv0: Not using interface ip6gretap329 (retrying later): interface not active [ 392.132983][T10502] batman_adv: Cannot find parent device [ 392.156135][T10502] batman_adv: batadv0: Adding interface: ip6gretap411 [ 392.167943][T10502] batman_adv: batadv0: The MTU of interface ip6gretap411 is too small (1434) 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. [ 392.206737][T10502] batman_adv: batadv0: Not using interface ip6gretap411 (retrying later): interface not active [ 392.229616][T10500] batman_adv: Cannot find parent device [ 392.242162][T10500] batman_adv: batadv0: Adding interface: ip6gretap107 [ 392.273743][T10500] batman_adv: batadv0: The MTU of interface ip6gretap107 is too small (1434) 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. [ 392.323868][T10500] batman_adv: batadv0: Not using interface ip6gretap107 (retrying later): interface not active [ 392.347352][T10503] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 392.378887][T10507] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 392.654804][T10512] batman_adv: Cannot find parent device [ 392.666636][T10512] batman_adv: batadv0: Adding interface: ip6gretap355 04:25:21 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xf0ffffff, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:21 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xcadc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:21 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc2d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:21 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 392.676605][T10512] batman_adv: batadv0: The MTU of interface ip6gretap355 is too small (1434) 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. [ 392.716384][T10512] batman_adv: batadv0: Not using interface ip6gretap355 (retrying later): interface not active [ 392.742635][T10515] batman_adv: Cannot find parent device [ 392.754165][T10515] batman_adv: batadv0: Adding interface: ip6gretap330 [ 392.767937][T10515] batman_adv: batadv0: The MTU of interface ip6gretap330 is too small (1434) 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. [ 392.809436][T10515] batman_adv: batadv0: Not using interface ip6gretap330 (retrying later): interface not active [ 392.837590][T10516] batman_adv: Cannot find parent device [ 392.847964][T10516] batman_adv: batadv0: Adding interface: ip6gretap412 [ 392.858077][T10516] batman_adv: batadv0: The MTU of interface ip6gretap412 is too small (1434) 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. [ 392.911584][T10516] batman_adv: batadv0: Not using interface ip6gretap412 (retrying later): interface not active [ 392.944552][T10517] batman_adv: Cannot find parent device [ 392.955573][T10517] batman_adv: batadv0: Adding interface: ip6gretap108 [ 392.966831][T10517] batman_adv: batadv0: The MTU of interface ip6gretap108 is too small (1434) 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. [ 393.007639][T10517] batman_adv: batadv0: Not using interface ip6gretap108 (retrying later): interface not active [ 393.138240][T10518] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 393.154269][T10519] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 395.065486][T10523] batman_adv: Cannot find parent device [ 395.077595][T10523] batman_adv: batadv0: Adding interface: ip6gretap109 [ 395.088943][T10523] batman_adv: batadv0: The MTU of interface ip6gretap109 is too small (1434) 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. 04:25:21 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xcadc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:21 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xcbdc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:21 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc3d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:21 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xf2000000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 395.154504][T10523] batman_adv: batadv0: Not using interface ip6gretap109 (retrying later): interface not active [ 395.194648][T10525] batman_adv: Cannot find parent device [ 395.204903][T10525] batman_adv: batadv0: Adding interface: ip6gretap331 [ 395.215072][T10525] batman_adv: batadv0: The MTU of interface ip6gretap331 is too small (1434) 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. [ 395.254961][T10525] batman_adv: batadv0: Not using interface ip6gretap331 (retrying later): interface not active [ 395.281216][T10527] batman_adv: Cannot find parent device [ 395.294102][T10527] batman_adv: batadv0: Adding interface: ip6gretap356 [ 395.304632][T10527] batman_adv: batadv0: The MTU of interface ip6gretap356 is too small (1434) 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. [ 395.341150][T10527] batman_adv: batadv0: Not using interface ip6gretap356 (retrying later): interface not active [ 395.365431][T10528] batman_adv: Cannot find parent device [ 395.378054][T10528] batman_adv: batadv0: Adding interface: ip6gretap413 [ 395.388635][T10528] batman_adv: batadv0: The MTU of interface ip6gretap413 is too small (1434) 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. [ 395.437862][T10528] batman_adv: batadv0: Not using interface ip6gretap413 (retrying later): interface not active [ 395.469147][T10531] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 395.584589][T10533] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:25:24 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xb3dc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:24 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc4d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:24 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xccdc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:24 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xf2030000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 395.802610][T10538] batman_adv: Cannot find parent device [ 395.812135][T10538] batman_adv: batadv0: Adding interface: ip6gretap332 [ 395.822155][T10538] batman_adv: batadv0: The MTU of interface ip6gretap332 is too small (1434) 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. [ 395.855073][T10538] batman_adv: batadv0: Not using interface ip6gretap332 (retrying later): interface not active [ 395.873332][T10539] batman_adv: Cannot find parent device [ 395.883647][T10539] batman_adv: batadv0: Adding interface: ip6gretap414 [ 395.893187][T10539] batman_adv: batadv0: The MTU of interface ip6gretap414 is too small (1434) 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. [ 395.947052][T10539] batman_adv: batadv0: Not using interface ip6gretap414 (retrying later): interface not active [ 395.976082][T10537] batman_adv: Cannot find parent device [ 395.986761][T10537] batman_adv: batadv0: Adding interface: ip6gretap110 [ 395.997170][T10537] batman_adv: batadv0: The MTU of interface ip6gretap110 is too small (1434) 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. [ 396.038908][T10537] batman_adv: batadv0: Not using interface ip6gretap110 (retrying later): interface not active [ 396.085052][T10541] batman_adv: Cannot find parent device [ 396.095068][T10541] batman_adv: batadv0: Adding interface: ip6gretap357 [ 396.103881][T10541] batman_adv: batadv0: The MTU of interface ip6gretap357 is too small (1434) 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. [ 396.141189][T10541] batman_adv: batadv0: Not using interface ip6gretap357 (retrying later): interface not active [ 396.171007][T10542] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 396.203519][T10547] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 04:25:24 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) 04:25:24 executing program 1: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xf20c0000, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) 04:25:24 executing program 3: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xcddc0100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 396.375913][T10552] batman_adv: Cannot find parent device [ 396.387253][T10552] batman_adv: batadv0: Adding interface: ip6gretap415 04:25:25 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0xc5d70100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 396.397458][T10552] batman_adv: batadv0: The MTU of interface ip6gretap415 is too small (1434) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 396.451745][T10552] batman_adv: batadv0: Not using interface ip6gretap415 (retrying later): interface not active 04:25:25 executing program 2: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) syz_open_procfs(0x0, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x17f, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x73d80100, 0x0, {}, [@IFLA_LINKINFO={0x20, 0x12, 0x0, 0x1, @ip6gretap={{0xe}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x48}}, 0x0) [ 396.507297][T10554] batman_adv: Cannot find parent device [ 396.519876][T10554] batman_adv: batadv0: Adding interface: ip6gretap333 [ 396.532185][T10554] batman_adv: batadv0: The MTU of interface ip6gretap333 is too small (1434) 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. [ 396.575590][T10554] batman_adv: batadv0: Not using interface ip6gretap333 (retrying later): interface not active [ 396.600584][T10557] batman_adv: Cannot find parent device [ 396.609372][T10557] batman_adv: batadv0: Adding interface: ip6gretap111 [ 396.628968][T10557] batman_adv: batadv0: The MTU of interface ip6gretap111 is too small (1434) 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. [ 396.669688][T10557] batman_adv: batadv0: Not using interface ip6gretap111 (retrying later): interface not active [ 396.694035][T10558] batman_adv: Cannot find parent device [ 396.705244][T10558] batman_adv: batadv0: Adding interface: ip6gretap358 [ 396.715573][T10558] batman_adv: batadv0: The MTU of interface ip6gretap358 is too small (1434) 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. [ 396.757635][T10558] batman_adv: batadv0: Not using interface ip6gretap358 (retrying later): interface not active [ 396.778042][T10561] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 396.809726][T10563] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 400.444229][T10565] batman_adv: Cannot find parent device [ 400.464625][T10565] batman_adv: batadv0: Adding interface: ip6gretap112 [ 400.488221][T10565] batman_adv: batadv0: The MTU of interface ip6gretap112 is too small (1434) 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. [ 400.538693][T10565] batman_adv: batadv0: Not using interface ip6gretap112 (retrying later): interface not active [ 400.580098][T10568] batman_adv: Cannot find parent device [ 400.591968][T10568] batman_adv: batadv0: Adding interface: ip6gretap334 [ 400.604571][T10568] batman_adv: batadv0: The MTU of interface ip6gretap334 is too small (1434) 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. [ 400.645139][T10568] batman_adv: batadv0: Not using interface ip6gretap334 (retrying later): interface not active [ 400.673473][T10570] batman_adv: Cannot find parent device [ 400.687762][T10570] batman_adv: batadv0: Adding interface: ip6gretap359 [ 400.698240][T10570] batman_adv: batadv0: The MTU of interface ip6gretap359 is too small (1434) 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. [ 400.743294][T10570] batman_adv: batadv0: Not using interface ip6gretap359 (retrying later): interface not active [ 400.762247][T10571] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 405.423587][ T1316] ieee802154 phy0 wpan0: encryption failed: -22 [ 405.445111][ T1316] ieee802154 phy1 wpan1: encryption failed: -22 [ 411.119328][ T9] kworker/u16:0: page allocation failure: order:0, mode:0x40a20(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 [ 411.142965][ T9] CPU: 2 PID: 9 Comm: kworker/u16:0 Not tainted 5.15.0-syzkaller #0 [ 411.157516][ T9] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 411.157822][ T3059] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 411.160018][ C3] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 411.160297][ T3707] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 411.160643][ C3] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 1, min order: 0 [ 411.160665][ T3707] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 411.160678][ C3] node 0: slabs: 1063, objs: 25496, free: 0 [ 411.160693][ T3707] node 0: slabs: 1887, objs: 12524, free: 0 [ 411.160811][ T3707] node 1: slabs: 1265, objs: 19540, free: 19 [ 411.160921][ C3] node 1: slabs: 267, objs: 6194, free: 27 [ 411.160925][ T3707] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 411.160977][ T3707] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 411.161003][ T3707] node 0: slabs: 1887, objs: 12524, free: 0 [ 411.161023][ T3707] node 1: slabs: 1265, objs: 19540, free: 19 [ 411.162011][ T11] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 411.162078][ T11] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 411.162115][ T11] node 0: slabs: 1887, objs: 12524, free: 0 [ 411.162144][ T11] node 1: slabs: 1265, objs: 19540, free: 19 [ 411.162258][ T11] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 411.162322][ T11] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 411.162355][ T11] node 0: slabs: 1887, objs: 12524, free: 0 [ 411.162436][ T11] node 1: slabs: 1265, objs: 19540, free: 19 [ 411.169884][ T9] Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet [ 411.186369][ T3059] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 1, min order: 0 [ 411.186523][ T3707] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 411.186612][ T3707] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 411.186644][ T3707] node 0: slabs: 1887, objs: 12524, free: 0 [ 411.186669][ T3707] node 1: slabs: 1265, objs: 19540, free: 19 [ 411.196629][ T9] [ 411.196674][ T9] Call Trace: [ 411.196821][ T9] [ 411.211531][ T3059] node 0: slabs: 1064, objs: 25521, free: 0 [ 411.228866][ T9] dump_stack_lvl+0xcd/0x134 [ 411.229031][ T9] warn_alloc.cold+0x87/0x17a [ 411.245654][ T3059] node 1: slabs: 268, objs: 6219, free: 27 [ 411.255994][ T9] ? zone_watermark_ok_safe+0x290/0x290 [ 411.262672][ T3707] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 411.262715][ T3707] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 411.262747][ T3707] node 0: slabs: 1887, objs: 12524, free: 0 [ 411.262775][ T3707] node 1: slabs: 1265, objs: 19540, free: 19 [ 411.262929][ T3707] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 411.262959][ T3707] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 411.262989][ T3707] node 0: slabs: 1887, objs: 12524, free: 0 [ 411.263012][ T3707] node 1: slabs: 1265, objs: 19540, free: 19 [ 411.263111][ T11] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 411.263203][ T11] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 411.263237][ T11] node 0: slabs: 1887, objs: 12524, free: 0 [ 411.263268][ T11] node 1: slabs: 1265, objs: 19540, free: 19 [ 411.686251][ T9] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 411.696070][ T9] ? wakeup_kswapd+0x20e/0x650 [ 411.704547][ T9] ? __zone_watermark_ok+0x450/0x450 [ 411.712541][ T9] ? wake_all_kswapds+0x143/0x2c0 [ 411.720446][ T9] __alloc_pages_slowpath.constprop.0+0x1bb5/0x20d0 [ 411.730783][ T9] ? warn_alloc+0x120/0x120 [ 411.737717][ T9] ? __zone_watermark_ok+0x450/0x450 [ 411.746063][ T9] ? prepare_alloc_pages+0x415/0x570 [ 411.754947][ T9] __alloc_pages+0x412/0x500 [ 411.762306][ T9] ? __alloc_pages_slowpath.constprop.0+0x20d0/0x20d0 [ 411.772239][ T9] ? __slab_alloc.constprop.0+0x4d/0xa0 [ 411.779033][ T9] alloc_pages+0x1a7/0x300 [ 411.784567][ T9] new_slab+0x349/0x4a0 [ 411.789369][ T9] ___slab_alloc+0x918/0xfe0 [ 411.794647][ T9] ? batadv_forw_packet_alloc+0x3ac/0x4d0 [ 411.835196][ T9] ? batadv_forw_packet_alloc+0x3ac/0x4d0 [ 411.845350][ T9] ? __slab_alloc.constprop.0+0x4d/0xa0 [ 411.854584][ T9] ? batadv_forw_packet_alloc+0x3ac/0x4d0 [ 411.864320][ T9] __slab_alloc.constprop.0+0x4d/0xa0 [ 411.872017][ T9] ? batadv_forw_packet_alloc+0x3ac/0x4d0 [ 411.879786][ T9] kmem_cache_alloc_trace+0x289/0x2c0 [ 411.887351][ T9] batadv_forw_packet_alloc+0x3ac/0x4d0 [ 411.894903][ T9] batadv_iv_ogm_aggregate_new+0x134/0x4e0 [ 411.904336][ T9] batadv_iv_ogm_schedule_buff+0x990/0x1430 [ 411.913009][ T9] ? batadv_iv_gw_get_best_gw_node+0x960/0x960 [ 411.922695][ T9] batadv_iv_send_outstanding_bat_ogm_packet+0x740/0x8e0 [ 411.933247][ T9] process_one_work+0x9b2/0x1690 [ 411.942969][ T9] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 411.952652][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 411.961155][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 411.970158][ T9] worker_thread+0x658/0x11f0 [ 411.978599][ T9] ? process_one_work+0x1690/0x1690 [ 411.988035][ T9] kthread+0x405/0x4f0 [ 411.994642][ T9] ? set_kthread_struct+0x130/0x130 [ 412.002523][ T9] ret_from_fork+0x1f/0x30 [ 412.012033][ T9] [ 412.067672][ T9] Mem-Info: [ 412.075106][ T9] active_anon:782 inactive_anon:142513 isolated_anon:0 [ 412.075106][ T9] active_file:10 inactive_file:22 isolated_file:0 [ 412.075106][ T9] unevictable:768 dirty:0 writeback:0 [ 412.075106][ T9] slab_reclaimable:13863 slab_unreclaimable:92949 [ 412.075106][ T9] mapped:34819 shmem:1727 pagetables:883 bounce:0 [ 412.075106][ T9] kernel_misc_reclaimable:0 [ 412.075106][ T9] free:4793 free_pcp:597 free_cma:0 [ 412.142983][ T9] Node 0 active_anon:2876kB inactive_anon:181220kB active_file:0kB inactive_file:4kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:0kB writeback:0kB shmem:4212kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 61440kB writeback_tmp:0kB kernel_stack:8656kB pagetables:1244kB all_unreclaimable? yes [ 412.197916][ T9] Node 1 active_anon:252kB inactive_anon:388832kB active_file:24kB inactive_file:100kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:139264kB dirty:0kB writeback:0kB shmem:2696kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB kernel_stack:1456kB pagetables:2288kB all_unreclaimable? yes [ 412.257064][ T9] Node 0 DMA free:1456kB boost:2048kB min:2768kB low:2948kB high:3128kB reserved_highatomic:4096KB active_anon:0kB inactive_anon:11600kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:16kB local_pcp:0kB free_cma:0kB [ 412.303529][ T9] lowmem_reserve[]: 0 455 455 455 455 [ 412.312595][ T9] Node 0 DMA32 free:880kB boost:49332kB min:71260kB low:76740kB high:82220kB reserved_highatomic:8192KB active_anon:2876kB inactive_anon:169620kB active_file:0kB inactive_file:4kB unevictable:1536kB writepending:0kB present:1032192kB managed:473848kB mlocked:0kB bounce:0kB free_pcp:260kB local_pcp:48kB free_cma:0kB [ 412.352439][ T9] lowmem_reserve[]: 0 0 0 0 0 [ 412.359595][ T9] Node 1 DMA32 free:17092kB boost:77824kB min:122752kB low:133984kB high:145216kB reserved_highatomic:12288KB active_anon:252kB inactive_anon:388832kB active_file:24kB inactive_file:100kB unevictable:1536kB writepending:0kB present:1048436kB managed:954820kB mlocked:0kB bounce:0kB free_pcp:1728kB local_pcp:284kB free_cma:0kB [ 412.407144][ T9] lowmem_reserve[]: 0 0 0 0 0 [ 412.414049][ T9] Node 0 DMA: 10*4kB (H) 9*8kB (H) 2*16kB (H) 1*32kB (H) 6*64kB (H) 5*128kB (H) 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1456kB [ 412.434904][ T9] Node 0 DMA32: 8*4kB (H) 2*8kB (H) 0*16kB 4*32kB (H) 1*64kB (H) 1*128kB (H) 2*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 880kB [ 412.453613][ T9] Node 1 DMA32: 1045*4kB (UMEH) 870*8kB (UMEH) 372*16kB (UMEH) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 17092kB [ 412.475897][ T9] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 412.492910][ T9] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 412.508945][ T9] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 412.525822][ T9] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 412.541543][ T9] 1762 total pagecache pages [ 412.549414][ T9] 0 pages in swap cache [ 412.557611][ T9] Swap cache stats: add 0, delete 0, find 0/0 [ 412.598903][ T9] Free swap = 0kB [ 412.604542][ T9] Total swap = 0kB [ 412.611281][ T9] 524155 pages RAM [ 412.616736][ T9] 0 pages HighMem/MovableOnly [ 412.623757][ T9] 163148 pages reserved [ 412.647524][ T9] 0 pages cma reserved [ 417.284687][ T3774] slab_out_of_memory: 2251 callbacks suppressed [ 417.284806][ T3774] SLUB: Unable to allocate memory on node -1, gfp=0x20a20(GFP_ATOMIC|__GFP_MEMALLOC) [ 417.318675][ T3774] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 417.335771][ T3774] node 0: slabs: 1887, objs: 12524, free: 0 [ 417.345992][ T3774] node 1: slabs: 3772, objs: 24246, free: 16 [ 417.357788][ T3774] SLUB: Unable to allocate memory on node -1, gfp=0x20a20(GFP_ATOMIC|__GFP_MEMALLOC) [ 417.372695][ T3774] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 417.387651][ T3774] node 0: slabs: 1887, objs: 12524, free: 0 [ 417.397694][ T3774] node 1: slabs: 3772, objs: 24246, free: 16 [ 417.408829][ T3701] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 417.409187][ T32] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 417.421226][ T3701] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 417.421274][ T3701] node 0: slabs: 1887, objs: 12524, free: 0 [ 417.433969][ T32] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 1, min order: 0 [ 417.453251][ T3701] node 1: slabs: 3785, objs: 24272, free: 16 [ 417.462711][ T32] node 0: slabs: 1060, objs: 25421, free: 0 [ 417.462741][ T32] node 1: slabs: 663, objs: 13819, free: 27 [ 417.502382][ T3774] SLUB: Unable to allocate memory on node -1, gfp=0x20a20(GFP_ATOMIC|__GFP_MEMALLOC) [ 417.509523][ T3701] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 417.509552][ T3701] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 417.509573][ T3701] node 0: slabs: 1887, objs: 12524, free: 0 [ 417.509586][ T3701] node 1: slabs: 3804, objs: 24310, free: 16 [ 417.509669][ T3701] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 417.509687][ T3701] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 417.509704][ T3701] node 0: slabs: 1887, objs: 12524, free: 0 [ 417.509718][ T3701] node 1: slabs: 3804, objs: 24310, free: 16 [ 417.510204][ T32] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 417.510246][ T32] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 1, min order: 0 [ 417.510279][ T32] node 0: slabs: 1060, objs: 25421, free: 0 [ 417.510307][ T32] node 1: slabs: 664, objs: 13844, free: 27 [ 417.510359][ T32] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 417.510386][ T32] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 1, min order: 0 [ 417.510414][ T32] node 0: slabs: 1060, objs: 25421, free: 0 [ 417.510439][ T32] node 1: slabs: 664, objs: 13844, free: 27 [ 417.510502][ T32] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 417.510525][ T32] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 1, min order: 0 [ 417.510578][ T32] node 0: slabs: 1060, objs: 25421, free: 0 [ 417.510597][ T32] node 1: slabs: 664, objs: 13844, free: 27 [ 417.777488][ T3774] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 417.792440][ T3774] node 0: slabs: 1887, objs: 12524, free: 0 [ 417.801727][ T3774] node 1: slabs: 3807, objs: 24316, free: 16 [ 418.218920][ C3] ------------[ cut here ]------------ [ 418.228245][ C3] HSR: Could not send supervision frame [ 418.242892][ C3] WARNING: CPU: 3 PID: 0 at net/hsr/hsr_device.c:293 send_hsr_supervision_frame+0x66d/0x8d0 [ 418.270641][ C3] Modules linked in: [ 418.285110][ C3] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 5.15.0-syzkaller #0 [ 418.299544][ C3] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 418.316394][ C3] RIP: 0010:send_hsr_supervision_frame+0x66d/0x8d0 [ 418.327541][ C3] Code: 1d 41 79 72 04 31 ff 89 de e8 9f 04 8f f8 84 db 75 b6 e8 56 fe 8e f8 48 c7 c7 40 fa b6 8a c6 05 21 79 72 04 01 e8 8a db 0c 00 <0f> 0b eb 9a e8 3a fe 8e f8 41 be 3c 00 00 00 ba 01 00 00 00 4c 89 [ 418.360896][ C3] RSP: 0000:ffffc900005b8c60 EFLAGS: 00010282 [ 418.371817][ C3] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 418.384607][ C3] RDX: ffff8880114bd700 RSI: ffffffff815f3708 RDI: fffff520000b717e [ 418.397904][ C3] RBP: ffff88804bd42c80 R08: 0000000000000000 R09: 0000000000000001 [ 418.411478][ C3] R10: ffffffff815ed4de R11: 0000000000000000 R12: ffff88801df3f480 [ 418.424847][ C3] R13: 0000000000000000 R14: ffff88801df3f498 R15: 0000000000000017 [ 418.438039][ C3] FS: 0000000000000000(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000 [ 418.453049][ C3] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 418.464434][ C3] CR2: 000000000046e420 CR3: 000000001af5d000 CR4: 0000000000150ee0 [ 418.479022][ C3] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 418.492673][ C3] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 418.505821][ C3] Call Trace: [ 418.510484][ C3] [ 418.514785][ C3] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 418.523948][ C3] ? send_hsr_supervision_frame+0x8d0/0x8d0 [ 418.534641][ C3] hsr_announce+0x109/0x330 [ 418.542350][ C3] ? send_hsr_supervision_frame+0x8d0/0x8d0 [ 418.551874][ C3] call_timer_fn+0x1a5/0x6b0 [ 418.559309][ C3] ? add_timer_on+0x4a0/0x4a0 [ 418.566848][ C3] ? lock_downgrade+0x6e0/0x6e0 [ 418.574301][ C3] ? _raw_spin_unlock_irq+0x1f/0x40 [ 418.582058][ C3] ? send_hsr_supervision_frame+0x8d0/0x8d0 [ 418.591066][ C3] __run_timers.part.0+0x675/0xa20 [ 418.598979][ C3] ? call_timer_fn+0x6b0/0x6b0 [ 418.607530][ C3] ? kvm_sched_clock_read+0x14/0x40 [ 418.616084][ C3] ? sched_clock_cpu+0x15/0x1f0 [ 418.624271][ C3] run_timer_softirq+0xb3/0x1d0 [ 418.632831][ C3] __do_softirq+0x29b/0x9c2 [ 418.639468][ C3] __irq_exit_rcu+0x123/0x180 [ 418.647725][ C3] irq_exit_rcu+0x5/0x20 [ 418.655505][ C3] sysvec_apic_timer_interrupt+0x93/0xc0 [ 418.665223][ C3] [ 418.670095][ C3] [ 418.674928][ C3] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 418.684471][ C3] RIP: 0010:default_idle+0xb/0x10 [ 418.692587][ C3] Code: ff ff e8 e8 93 82 f8 e9 24 fe ff ff e8 5e 2d fd ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc eb 07 0f 00 2d c7 66 4a 00 fb f4 0f 1f 40 00 41 54 be 08 00 00 00 53 65 48 8b 1c 25 40 70 02 00 [ 418.720023][ C3] RSP: 0000:ffffc9000045fdf8 EFLAGS: 00000202 [ 418.726963][ C3] RAX: 00000000001f870b RBX: ffff8880114bd700 RCX: ffffffff893907cf [ 418.736004][ C3] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 418.745840][ C3] RBP: 0000000000000003 R08: 0000000000000001 R09: ffff88802cd3aa53 [ 418.755824][ C3] R10: ffffed10059a754a R11: 0000000000000000 R12: ffffed1002297ae0 [ 418.765636][ C3] R13: 0000000000000003 R14: ffffffff8d6fb490 R15: 0000000000000000 [ 418.775159][ C3] ? rcu_eqs_enter.constprop.0+0xcf/0x110 [ 418.782345][ C3] default_idle_call+0x87/0xd0 [ 418.788650][ C3] do_idle+0x401/0x590 [ 418.793804][ C3] ? arch_cpu_idle_exit+0x30/0x30 [ 418.800011][ C3] cpu_startup_entry+0x14/0x20 [ 418.805890][ C3] start_secondary+0x265/0x340 [ 418.811930][ C3] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 418.818623][ C3] secondary_startup_64_no_verify+0xb0/0xbb [ 418.826031][ C3] [ 418.829822][ C3] Kernel panic - not syncing: panic_on_warn set ... [ 418.837647][ C3] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 5.15.0-syzkaller #0 [ 418.847020][ C3] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 418.858352][ C3] Call Trace: [ 418.862213][ C3] [ 418.865538][ C3] dump_stack_lvl+0xcd/0x134 [ 418.870988][ C3] panic+0x2b0/0x6dd [ 418.876340][ C3] ? __warn_printk+0xf3/0xf3 [ 418.882004][ C3] ? __warn.cold+0x1a/0x44 [ 418.887655][ C3] ? send_hsr_supervision_frame+0x66d/0x8d0 [ 418.895114][ C3] __warn.cold+0x35/0x44 [ 418.900994][ C3] ? wake_up_klogd.part.0+0x8e/0xd0 [ 418.910257][ C3] ? send_hsr_supervision_frame+0x66d/0x8d0 [ 418.918836][ C3] report_bug+0x1bd/0x210 [ 418.925643][ C3] handle_bug+0x3c/0x60 [ 418.930963][ C3] exc_invalid_op+0x14/0x40 [ 418.937586][ C3] asm_exc_invalid_op+0x12/0x20 [ 418.944053][ C3] RIP: 0010:send_hsr_supervision_frame+0x66d/0x8d0 [ 418.951752][ C3] Code: 1d 41 79 72 04 31 ff 89 de e8 9f 04 8f f8 84 db 75 b6 e8 56 fe 8e f8 48 c7 c7 40 fa b6 8a c6 05 21 79 72 04 01 e8 8a db 0c 00 <0f> 0b eb 9a e8 3a fe 8e f8 41 be 3c 00 00 00 ba 01 00 00 00 4c 89 [ 418.979884][ C3] RSP: 0000:ffffc900005b8c60 EFLAGS: 00010282 [ 418.990470][ C3] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 419.004460][ C3] RDX: ffff8880114bd700 RSI: ffffffff815f3708 RDI: fffff520000b717e [ 419.014507][ C3] RBP: ffff88804bd42c80 R08: 0000000000000000 R09: 0000000000000001 [ 419.024175][ C3] R10: ffffffff815ed4de R11: 0000000000000000 R12: ffff88801df3f480 [ 419.034811][ C3] R13: 0000000000000000 R14: ffff88801df3f498 R15: 0000000000000017 [ 419.046291][ C3] ? wake_up_klogd.part.0+0x8e/0xd0 [ 419.052606][ C3] ? vprintk+0x88/0x90 [ 419.057544][ C3] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 419.065798][ C3] ? send_hsr_supervision_frame+0x8d0/0x8d0 [ 419.074969][ C3] hsr_announce+0x109/0x330 [ 419.083244][ C3] ? send_hsr_supervision_frame+0x8d0/0x8d0 [ 419.092620][ C3] call_timer_fn+0x1a5/0x6b0 [ 419.098981][ C3] ? add_timer_on+0x4a0/0x4a0 [ 419.106555][ C3] ? lock_downgrade+0x6e0/0x6e0 [ 419.113795][ C3] ? _raw_spin_unlock_irq+0x1f/0x40 [ 419.121985][ C3] ? send_hsr_supervision_frame+0x8d0/0x8d0 [ 419.130082][ C3] __run_timers.part.0+0x675/0xa20 [ 419.136292][ C3] ? call_timer_fn+0x6b0/0x6b0 [ 419.142026][ C3] ? kvm_sched_clock_read+0x14/0x40 [ 419.148670][ C3] ? sched_clock_cpu+0x15/0x1f0 [ 419.154617][ C3] run_timer_softirq+0xb3/0x1d0 [ 419.160512][ C3] __do_softirq+0x29b/0x9c2 [ 419.167255][ C3] __irq_exit_rcu+0x123/0x180 [ 419.172856][ C3] irq_exit_rcu+0x5/0x20 [ 419.177865][ C3] sysvec_apic_timer_interrupt+0x93/0xc0 [ 419.186981][ C3] [ 419.191312][ C3] [ 419.196058][ C3] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 419.206025][ C3] RIP: 0010:default_idle+0xb/0x10 [ 419.211979][ C3] Code: ff ff e8 e8 93 82 f8 e9 24 fe ff ff e8 5e 2d fd ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc eb 07 0f 00 2d c7 66 4a 00 fb f4 0f 1f 40 00 41 54 be 08 00 00 00 53 65 48 8b 1c 25 40 70 02 00 [ 419.240240][ C3] RSP: 0000:ffffc9000045fdf8 EFLAGS: 00000202 [ 419.250679][ C3] RAX: 00000000001f870b RBX: ffff8880114bd700 RCX: ffffffff893907cf [ 419.263526][ C3] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 419.274939][ C3] RBP: 0000000000000003 R08: 0000000000000001 R09: ffff88802cd3aa53 [ 419.286209][ C3] R10: ffffed10059a754a R11: 0000000000000000 R12: ffffed1002297ae0 [ 419.296252][ C3] R13: 0000000000000003 R14: ffffffff8d6fb490 R15: 0000000000000000 [ 419.309001][ C3] ? rcu_eqs_enter.constprop.0+0xcf/0x110 [ 419.317821][ C3] default_idle_call+0x87/0xd0 [ 419.325214][ C3] do_idle+0x401/0x590 [ 419.332496][ C3] ? arch_cpu_idle_exit+0x30/0x30 [ 419.340338][ C3] cpu_startup_entry+0x14/0x20 [ 419.347613][ C3] start_secondary+0x265/0x340 [ 419.354780][ C3] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 419.363685][ C3] secondary_startup_64_no_verify+0xb0/0xbb [ 419.372910][ C3] [ 419.384329][ C3] Kernel Offset: disabled [ 419.392174][ C3] Rebooting in 86400 seconds.. VM DIAGNOSIS: 04:25:47 Registers: info registers vcpu 0 RAX=000000000012c8c3 RBX=ffffffff8b6bc6c0 RCX=ffffffff893907cf RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=0000000000000000 RSP=ffffffff8b607e40 R8 =0000000000000001 R9 =ffff88802ca3aa53 R10=ffffed100594754a R11=0000000000000000 R12=fffffbfff16d78d8 R13=0000000000000000 R14=ffffffff8d6fb490 R15=0000000000000000 RIP=ffffffff893bd31b RFL=00000206 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88802ca00000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=0000000057e7f08c CR3=00000000174e4000 CR4=00150ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000a60ce07b00000000cec3662e XMM01=00000000000000001cce24d191f4dc9e XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=00000000000f59cf RBX=ffff8880114b9d00 RCX=ffffffff893907cf RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=0000000000000001 RSP=ffffc9000043fdf8 R8 =0000000000000001 R9 =ffff88802cb3aa53 R10=ffffed100596754a R11=0000000000000000 R12=ffffed10022973a0 R13=0000000000000001 R14=ffffffff8d6fb490 R15=0000000000000000 RIP=ffffffff893bd31b RFL=00000206 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00000000 FS =0000 0000000000000000 ffffffff 00000000 GS =0000 ffff88802cb00000 ffffffff 00000000 LDT=0000 0000000000000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00000000f70635dc CR3=0000000071b92000 CR4=00150ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000008 XMM01=00007f46181f9870000056394b694610 XMM02=00000000000003f80000000000000000 XMM03=00007f46b5ffbd6b0000000000000000 XMM04=000000000000100000007f467e53f000 XMM05=000000000000100000007f467e034000 XMM06=000000000000100000007f467e051000 XMM07=000000000000100000007f467e8ca000 XMM08=000000000000100000007f467ea9d000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 2 RAX=0000000000000007 RBX=0000000000000000 RCX=0000000000000001 RDX=0000000000000000 RSI=0000000000000000 RDI=0000000000000000 RBP=ffffffff89e49120 RSP=ffffc9000296fa98 R8 =0000000000000000 R9 =0000000000000000 R10=0000000000000001 R11=0000000000000000 R12=0000000000000002 R13=ffffffff898c0c20 R14=ffff888019341d00 R15=00000000000001d0 RIP=ffffffff8939113c RFL=00000046 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 000fffff 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 000fffff 00000000 FS =0000 0000000000000000 000fffff 00000000 GS =0000 ffff88802cc00000 000fffff 00000000 LDT=0000 0000000000000000 00000000 00000000 TR =0040 fffffe0000091000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe000008f000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00000000f6fc6874 CR3=000000006dc47000 CR4=00150ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=2c2c2c2c2c2c2c2c2c2c2c2c2c2c2c2c XMM01=0000ff00000000000000000000000000 XMM02=0000ff00000000000000000000000000 XMM03=000000ff000000ff0000000000000000 XMM04=2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f XMM05=ffff000000000000ffff000000000000 XMM06=ffff0000ff0000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=65770075253a7325202773252720676e XMM09=00000000000000000000000000000000 XMM10=737326dc5c27b363737326d906d42738 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 3 RAX=dffffc0000000060 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd RSI=ffffffff8436cecc RDI=ffffffff9055cb60 RBP=ffffffff9055cb20 RSP=ffffc900005b8620 R8 =0000000000000055 R9 =0000000000000000 R10=ffffffff8436cebd R11=000000000000001f R12=0000000000000000 R13=fffffbfff20ab9b7 R14=fffffbfff20ab96e R15=dffffc0000000000 RIP=ffffffff8436cef2 RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0000 0000000000000000 ffffffff 00c00000 DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88802cd00000 ffffffff 00c00000 LDT=0000 0000000000000000 00000000 00000000 TR =0040 fffffe00000d8000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe00000d6000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=000000000046e420 CR3=000000001af5d000 CR4=00150ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001fa0 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=652e29646e616d6d6f632a282e637069 XMM03=00000000000000000000000000000000 XMM04=303178302874656b636f73203d203072 XMM05=7465726736706940202c317830202c30 XMM06=2c6378307b202c7d6578307b7b3d7061 XMM07=202c317830202c307830202c32783020 XMM08=3d4b4e494c5f4552475f414c4649405b XMM09=7d5d7d3472202c317830202c3878307b XMM10=52455453414d5f414c464940202c7d7d XMM11=5d7d3172202c617830202c3878307b3d XMM12=0a29307830202c7d7d38347830202c7d XMM13=203d2032720a297d3078303e3d31723c XMM14=286574756f725f6c6e2474656b636f73 XMM15=0a29307830202c337830202c30317830