21, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 425.055671][T24929] batman_adv: Cannot find parent device 22:40:42 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00'], 0x44}}, 0x0) 22:40:42 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 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$nl_route(r2, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 425.148554][T24937] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. [ 425.179618][T24937] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. 22:40:42 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 425.260360][T24946] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.3'. 22:40:42 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:42 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef2"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 425.370832][T24944] batman_adv: Cannot find parent device 22:40:42 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) 22:40:42 executing program 3: socket(0x0, 0x0, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:42 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 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$nl_route(r2, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:42 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 425.537284][T24957] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. 22:40:42 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$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, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 425.580060][T24962] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.3'. 22:40:42 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:42 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 425.623707][T24964] batman_adv: Cannot find parent device 22:40:42 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:42 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:42 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) 22:40:42 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) [ 425.834548][T24980] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. 22:40:42 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:42 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 425.877450][T24986] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.3'. 22:40:43 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 425.967591][T24987] batman_adv: Cannot find parent device 22:40:43 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:43 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:43 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) 22:40:43 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:43 executing program 3: socket(0x0, 0x0, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:43 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:43 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:43 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:43 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:43 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 426.407029][T25014] batman_adv: Cannot find parent device 22:40:43 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:43 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:43 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:43 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYRES32=r1], 0x44}}, 0x0) 22:40:43 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:43 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:43 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:43 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:43 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:43 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) [ 426.835120][T25050] batman_adv: Cannot find parent device 22:40:43 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:43 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:43 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:44 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYRES32=r1], 0x44}}, 0x0) 22:40:44 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:44 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:44 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) [ 427.044850][T25065] batman_adv: Cannot find parent device 22:40:44 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:44 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:44 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYRES32=r1], 0x44}}, 0x0) 22:40:44 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:44 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:44 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:44 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 427.274556][T25081] batman_adv: Cannot find parent device 22:40:44 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:44 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:44 executing program 3: socket(0x0, 0x0, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:44 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB, @ANYRES32=r1], 0x44}}, 0x0) 22:40:44 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$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, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:44 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e517"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:44 executing program 3: socket(0x0, 0x0, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:44 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:44 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:44 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e517"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 427.644303][T25107] batman_adv: Cannot find parent device 22:40:44 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:44 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB, @ANYRES32=r1], 0x44}}, 0x0) 22:40:44 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 427.819065][T25115] batman_adv: Cannot find parent device 22:40:44 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e517"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:44 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:44 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:45 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:45 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:45 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:45 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB, @ANYRES32=r1], 0x44}}, 0x0) [ 428.085002][T25130] batman_adv: Cannot find parent device [ 428.117900][T25142] batman_adv: Cannot find parent device 22:40:45 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:45 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:45 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:45 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 428.331714][T25153] batman_adv: Cannot find parent device 22:40:45 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:45 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:45 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:45 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 428.417606][T25165] batman_adv: Cannot find parent device [ 428.535745][T25167] batman_adv: Cannot find parent device 22:40:45 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 428.579883][T25167] batman_adv: batadv0: Adding interface: gretap64 [ 428.587998][T25167] batman_adv: batadv0: The MTU of interface gretap64 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 428.617349][T25167] batman_adv: batadv0: Not using interface gretap64 (retrying later): interface not active 22:40:45 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:45 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:45 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 428.652495][T25183] batman_adv: Cannot find parent device 22:40:45 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:45 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:45 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 428.878744][T25196] batman_adv: Cannot find parent device [ 428.920209][T25196] batman_adv: batadv0: Adding interface: gretap65 [ 428.934197][T25196] batman_adv: batadv0: The MTU of interface gretap65 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 428.990708][T25196] batman_adv: batadv0: Not using interface gretap65 (retrying later): interface not active [ 429.023861][T25203] batman_adv: Cannot find parent device 22:40:46 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:46 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef2"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 429.042350][T25202] batman_adv: Cannot find parent device 22:40:46 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:46 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:46 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:46 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) [ 429.169329][T25220] batman_adv: Cannot find parent device [ 429.216565][T25220] batman_adv: batadv0: Adding interface: gretap66 [ 429.257467][T25220] batman_adv: batadv0: The MTU of interface gretap66 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 429.297581][T25220] batman_adv: batadv0: Not using interface gretap66 (retrying later): interface not active 22:40:46 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 429.390813][T25230] batman_adv: Cannot find parent device [ 429.402617][T25235] batman_adv: Cannot find parent device 22:40:46 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:46 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef2"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:46 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:46 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n', @ANYRES32=r1], 0x44}}, 0x0) [ 429.564591][T25246] batman_adv: Cannot find parent device [ 429.646422][T25246] batman_adv: batadv0: Adding interface: gretap67 [ 429.660924][T25246] batman_adv: batadv0: The MTU of interface gretap67 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 429.715329][T25246] batman_adv: batadv0: Not using interface gretap67 (retrying later): interface not active 22:40:46 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:46 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:46 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef2"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 429.758621][T25258] batman_adv: Cannot find parent device 22:40:46 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:46 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:46 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n', @ANYRES32=r1], 0x44}}, 0x0) 22:40:47 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 430.066074][T25272] batman_adv: Cannot find parent device [ 430.123269][T25272] batman_adv: batadv0: Adding interface: gretap68 [ 430.130722][T25272] batman_adv: batadv0: The MTU of interface gretap68 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 430.157361][T25272] batman_adv: batadv0: Not using interface gretap68 (retrying later): interface not active [ 430.182194][T25268] batman_adv: Cannot find parent device [ 430.213069][T25276] __nla_validate_parse: 29 callbacks suppressed [ 430.213094][T25276] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.2'. 22:40:47 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 430.237012][T25279] batman_adv: Cannot find parent device 22:40:47 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:47 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:47 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:47 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:47 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n', @ANYRES32=r1], 0x44}}, 0x0) [ 430.414451][T25296] batman_adv: Cannot find parent device [ 430.480138][T25296] batman_adv: batadv0: Adding interface: gretap69 [ 430.503386][T25296] batman_adv: batadv0: The MTU of interface gretap69 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 430.536854][T25296] batman_adv: batadv0: Not using interface gretap69 (retrying later): interface not active [ 430.557602][T25305] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.2'. [ 430.585511][T25308] batman_adv: Cannot find parent device 22:40:47 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:47 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:47 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 430.686765][T25310] batman_adv: Cannot find parent device 22:40:47 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:47 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:47 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 430.765982][T25326] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.2'. 22:40:47 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:47 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$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, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:47 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 430.937813][T25327] batman_adv: Cannot find parent device [ 430.992546][T25327] batman_adv: batadv0: Adding interface: gretap70 [ 430.999137][T25327] batman_adv: batadv0: The MTU of interface gretap70 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 431.063926][T25327] batman_adv: batadv0: Not using interface gretap70 (retrying later): interface not active [ 431.080767][T25338] batman_adv: Cannot find parent device 22:40:48 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:48 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 431.116410][T25337] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. [ 431.199455][T25337] batman_adv: Cannot find parent device [ 431.234582][T25345] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.2'. [ 431.275112][T25355] batman_adv: Cannot find parent device 22:40:48 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:48 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r3 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) 22:40:48 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$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, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 431.317955][T25355] batman_adv: batadv0: Adding interface: gretap71 22:40:48 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 431.345986][T25355] batman_adv: batadv0: The MTU of interface gretap71 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 431.409125][T25355] batman_adv: batadv0: Not using interface gretap71 (retrying later): interface not active 22:40:48 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:48 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:48 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 431.488988][T25370] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. 22:40:48 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:48 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 431.565053][T25374] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.2'. [ 431.596005][T25375] batman_adv: Cannot find parent device [ 431.730128][T25381] batman_adv: Cannot find parent device [ 431.768125][T25381] batman_adv: batadv0: Adding interface: gretap72 [ 431.777669][T25381] batman_adv: batadv0: The MTU of interface gretap72 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 431.804017][T25381] batman_adv: batadv0: Not using interface gretap72 (retrying later): interface not active 22:40:48 executing program 3: socket(0x0, 0x0, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:40:48 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 431.832740][T25389] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. 22:40:48 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:48 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 431.890833][T25395] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.2'. 22:40:49 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:49 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:49 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 432.100591][T25401] batman_adv: Cannot find parent device [ 432.139196][T25401] batman_adv: batadv0: Adding interface: gretap73 [ 432.146478][T25401] batman_adv: batadv0: The MTU of interface gretap73 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 432.174284][T25401] batman_adv: batadv0: Not using interface gretap73 (retrying later): interface not active 22:40:49 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 432.207791][T25413] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. 22:40:49 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:49 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r2 = socket$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, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 432.257610][T25413] batman_adv: Cannot find parent device [ 432.303894][T25416] batman_adv: Cannot find parent device 22:40:49 executing program 2: setsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:40:49 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 432.363159][T25422] batman_adv: Cannot find parent device [ 432.399525][T25422] batman_adv: batadv0: Adding interface: gretap74 [ 432.427750][T25422] batman_adv: batadv0: The MTU of interface gretap74 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:40:49 executing program 3: socket(0x0, 0x0, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 432.473150][T25422] batman_adv: batadv0: Not using interface gretap74 (retrying later): interface not active 22:40:49 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:49 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:49 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:49 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:49 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 432.691451][T25449] batman_adv: Cannot find parent device [ 432.724921][T25449] batman_adv: batadv0: Adding interface: gretap75 22:40:49 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 432.748823][T25449] batman_adv: batadv0: The MTU of interface gretap75 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 432.785940][T25449] batman_adv: batadv0: Not using interface gretap75 (retrying later): interface not active 22:40:49 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 432.818853][T25446] batman_adv: Cannot find parent device 22:40:49 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 432.892159][T25456] batman_adv: Cannot find parent device [ 432.914368][T25456] batman_adv: batadv0: Adding interface: gretap56 22:40:50 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 432.927514][T25456] batman_adv: batadv0: The MTU of interface gretap56 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 432.957660][T25456] batman_adv: batadv0: Not using interface gretap56 (retrying later): interface not active 22:40:50 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:40:50 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:50 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:50 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 433.086770][T25471] batman_adv: Cannot find parent device [ 433.161752][T25471] batman_adv: batadv0: Adding interface: gretap76 [ 433.182758][T25471] batman_adv: batadv0: The MTU of interface gretap76 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 433.260406][T25471] batman_adv: batadv0: Not using interface gretap76 (retrying later): interface not active [ 433.299535][T25483] batman_adv: Cannot find parent device 22:40:50 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:50 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 433.336857][T25488] batman_adv: Cannot find parent device [ 433.369072][T25488] batman_adv: batadv0: Adding interface: gretap57 22:40:50 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 433.398178][T25488] batman_adv: batadv0: The MTU of interface gretap57 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 433.440659][T25488] batman_adv: batadv0: Not using interface gretap57 (retrying later): interface not active [ 433.456372][T25503] batman_adv: Cannot find parent device 22:40:50 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:50 executing program 3: socket(0x0, 0x0, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x0) 22:40:50 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 433.491636][T25503] batman_adv: batadv0: Adding interface: gretap77 [ 433.506701][T25503] batman_adv: batadv0: The MTU of interface gretap77 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:40:50 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 433.580279][T25503] batman_adv: batadv0: Not using interface gretap77 (retrying later): interface not active [ 433.607260][T25513] batman_adv: Cannot find parent device [ 433.689306][T25520] batman_adv: Cannot find parent device [ 433.711717][T25520] batman_adv: batadv0: Adding interface: gretap58 22:40:50 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:50 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 433.724319][T25520] batman_adv: batadv0: The MTU of interface gretap58 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 433.810249][T25520] batman_adv: batadv0: Not using interface gretap58 (retrying later): interface not active 22:40:50 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:50 executing program 3: socket(0x0, 0x0, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x0) [ 433.863589][T25526] batman_adv: Cannot find parent device 22:40:51 executing program 2: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 433.915848][T25526] batman_adv: batadv0: Adding interface: gretap78 [ 433.940412][T25526] batman_adv: batadv0: The MTU of interface gretap78 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 433.996194][T25526] batman_adv: batadv0: Not using interface gretap78 (retrying later): interface not active 22:40:51 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:51 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e0"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:51 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:51 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 434.067834][T25543] batman_adv: Cannot find parent device 22:40:51 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 434.186736][T25557] batman_adv: Cannot find parent device [ 434.197275][T25557] batman_adv: batadv0: Adding interface: gretap79 [ 434.204564][T25557] batman_adv: batadv0: The MTU of interface gretap79 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:40:51 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 434.259917][T25557] batman_adv: batadv0: Not using interface gretap79 (retrying later): interface not active 22:40:51 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e0"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:51 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:51 executing program 3: socket(0x0, 0x0, 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x0) [ 434.346601][T25568] batman_adv: Cannot find parent device 22:40:51 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:51 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 434.457267][T25580] batman_adv: Cannot find parent device 22:40:51 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:51 executing program 2: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 434.522592][T25587] batman_adv: Cannot find parent device [ 434.558408][T25587] batman_adv: batadv0: Adding interface: gretap80 [ 434.596078][T25587] batman_adv: batadv0: The MTU of interface gretap80 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:40:51 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 434.685119][T25587] batman_adv: batadv0: Not using interface gretap80 (retrying later): interface not active 22:40:51 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:51 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:51 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:51 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:51 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:51 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:52 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 435.037952][T25613] batman_adv: Cannot find parent device [ 435.083775][T25613] batman_adv: batadv0: Adding interface: gretap81 [ 435.101562][T25613] batman_adv: batadv0: The MTU of interface gretap81 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 435.136286][T25613] batman_adv: batadv0: Not using interface gretap81 (retrying later): interface not active 22:40:52 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 435.255537][T25615] batman_adv: Cannot find parent device [ 435.286589][T25615] batman_adv: batadv0: Adding interface: gretap59 [ 435.298188][T25615] batman_adv: batadv0: The MTU of interface gretap59 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 435.326299][T25615] batman_adv: batadv0: Not using interface gretap59 (retrying later): interface not active [ 435.356915][T25637] batman_adv: Cannot find parent device [ 435.376904][T25637] batman_adv: batadv0: Adding interface: gretap82 22:40:52 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 435.396663][T25637] batman_adv: batadv0: The MTU of interface gretap82 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 435.468638][T25637] batman_adv: batadv0: Not using interface gretap82 (retrying later): interface not active 22:40:52 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 435.518211][T25619] batman_adv: Cannot find parent device [ 435.529398][T25619] batman_adv: batadv0: Adding interface: gretap34 [ 435.538107][T25619] batman_adv: batadv0: The MTU of interface gretap34 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 435.610215][T25619] batman_adv: batadv0: Not using interface gretap34 (retrying later): interface not active 22:40:52 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 435.653719][T25626] __nla_validate_parse: 28 callbacks suppressed [ 435.653727][T25626] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. [ 435.691499][T25626] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. 22:40:52 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 435.755581][T25643] batman_adv: Cannot find parent device [ 435.793357][T25643] batman_adv: batadv0: Adding interface: gretap60 22:40:52 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 435.832570][T25643] batman_adv: batadv0: The MTU of interface gretap60 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 435.925797][T25643] batman_adv: batadv0: Not using interface gretap60 (retrying later): interface not active 22:40:53 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 435.972833][T25649] batman_adv: Cannot find parent device [ 436.001462][T25649] batman_adv: batadv0: Adding interface: gretap83 [ 436.008301][T25649] batman_adv: batadv0: The MTU of interface gretap83 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 436.038926][T25649] batman_adv: batadv0: Not using interface gretap83 (retrying later): interface not active 22:40:53 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:53 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 436.079119][T25661] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. [ 436.101889][T25661] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. 22:40:53 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 436.153721][T25663] batman_adv: Cannot find parent device [ 436.180341][T25663] batman_adv: batadv0: Adding interface: gretap35 [ 436.226684][T25663] batman_adv: batadv0: The MTU of interface gretap35 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 436.302266][T25663] batman_adv: batadv0: Not using interface gretap35 (retrying later): interface not active 22:40:53 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 436.398885][T25670] batman_adv: Cannot find parent device [ 436.444861][T25670] batman_adv: batadv0: Adding interface: gretap61 [ 436.463867][T25670] batman_adv: batadv0: The MTU of interface gretap61 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 436.503401][T25670] batman_adv: batadv0: Not using interface gretap61 (retrying later): interface not active [ 436.525607][T25672] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. [ 436.536791][T25672] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. [ 436.553174][T25682] batman_adv: Cannot find parent device 22:40:53 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:53 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 436.590994][T25682] batman_adv: batadv0: Adding interface: gretap84 22:40:53 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) [ 436.650383][T25682] batman_adv: batadv0: The MTU of interface gretap84 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 436.740169][T25682] batman_adv: batadv0: Not using interface gretap84 (retrying later): interface not active [ 436.766263][T25689] batman_adv: Cannot find parent device 22:40:53 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 436.791862][T25689] batman_adv: batadv0: Adding interface: gretap36 [ 436.819410][T25689] batman_adv: batadv0: The MTU of interface gretap36 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 436.886640][T25689] batman_adv: batadv0: Not using interface gretap36 (retrying later): interface not active [ 436.932504][T25696] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. 22:40:54 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:54 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 436.981469][T25696] batman_adv: Cannot find parent device [ 436.995879][T25698] batman_adv: Cannot find parent device [ 437.015367][T25698] batman_adv: batadv0: Adding interface: gretap62 22:40:54 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 437.051725][T25698] batman_adv: batadv0: The MTU of interface gretap62 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 437.130128][T25698] batman_adv: batadv0: Not using interface gretap62 (retrying later): interface not active [ 437.166146][T25701] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. 22:40:54 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) [ 437.185095][T25701] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. [ 437.214776][T25708] batman_adv: Cannot find parent device 22:40:54 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 437.243259][T25708] batman_adv: batadv0: Adding interface: gretap85 [ 437.257558][T25708] batman_adv: batadv0: The MTU of interface gretap85 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 437.289719][T25708] batman_adv: batadv0: Not using interface gretap85 (retrying later): interface not active [ 437.303912][T25716] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. [ 437.324903][T25719] batman_adv: Cannot find parent device 22:40:54 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 437.346112][T25719] batman_adv: batadv0: Adding interface: gretap37 [ 437.397544][T25719] batman_adv: batadv0: The MTU of interface gretap37 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 437.435643][T25719] batman_adv: batadv0: Not using interface gretap37 (retrying later): interface not active 22:40:54 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 437.458396][T25729] batman_adv: Cannot find parent device [ 437.471125][T25729] batman_adv: batadv0: Adding interface: gretap63 [ 437.479654][T25729] batman_adv: batadv0: The MTU of interface gretap63 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:40:54 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 437.511855][T25729] batman_adv: batadv0: Not using interface gretap63 (retrying later): interface not active 22:40:54 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:54 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:54 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) [ 437.606667][T25740] batman_adv: Cannot find parent device [ 437.644757][T25740] batman_adv: batadv0: Adding interface: gretap86 [ 437.693559][T25740] batman_adv: batadv0: The MTU of interface gretap86 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:40:54 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 437.743524][T25740] batman_adv: batadv0: Not using interface gretap86 (retrying later): interface not active 22:40:54 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 437.840763][T25749] batman_adv: Cannot find parent device [ 437.896175][T25749] batman_adv: batadv0: Adding interface: gretap38 [ 437.911377][T25749] batman_adv: batadv0: The MTU of interface gretap38 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 437.977387][T25749] batman_adv: batadv0: Not using interface gretap38 (retrying later): interface not active [ 438.012286][T25754] batman_adv: Cannot find parent device [ 438.019212][T25754] batman_adv: batadv0: Adding interface: gretap64 22:40:55 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 438.061511][T25754] batman_adv: batadv0: The MTU of interface gretap64 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 438.171480][T25754] batman_adv: batadv0: Not using interface gretap64 (retrying later): interface not active [ 438.204413][T25762] batman_adv: Cannot find parent device [ 438.212327][T25762] batman_adv: batadv0: Adding interface: gretap87 22:40:55 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:55 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 438.218759][T25762] batman_adv: batadv0: The MTU of interface gretap87 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 438.305314][T25762] batman_adv: batadv0: Not using interface gretap87 (retrying later): interface not active [ 438.341513][T25774] batman_adv: Cannot find parent device 22:40:55 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:55 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:55 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 438.362728][T25774] batman_adv: batadv0: Adding interface: gretap39 [ 438.384033][T25774] batman_adv: batadv0: The MTU of interface gretap39 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:40:55 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 438.520179][T25774] batman_adv: batadv0: Not using interface gretap39 (retrying later): interface not active [ 438.551973][T25782] batman_adv: Cannot find parent device [ 438.558974][T25782] batman_adv: batadv0: Adding interface: gretap65 22:40:55 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 438.596569][T25782] batman_adv: batadv0: The MTU of interface gretap65 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 438.630255][T25782] batman_adv: batadv0: Not using interface gretap65 (retrying later): interface not active 22:40:55 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:55 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 438.681669][T25790] batman_adv: Cannot find parent device [ 438.706440][T25790] batman_adv: batadv0: Adding interface: gretap88 [ 438.720305][T25790] batman_adv: batadv0: The MTU of interface gretap88 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 438.794856][T25790] batman_adv: batadv0: Not using interface gretap88 (retrying later): interface not active [ 438.816363][T25804] batman_adv: Cannot find parent device 22:40:55 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:55 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:55 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 438.973181][T25804] batman_adv: batadv0: Adding interface: gretap40 [ 438.992158][T25804] batman_adv: batadv0: The MTU of interface gretap40 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 439.060032][T25804] batman_adv: batadv0: Not using interface gretap40 (retrying later): interface not active 22:40:56 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) [ 439.120897][T25808] batman_adv: Cannot find parent device [ 439.137822][T25808] batman_adv: batadv0: Adding interface: gretap66 [ 439.182208][T25808] batman_adv: batadv0: The MTU of interface gretap66 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:40:56 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 439.280003][T25808] batman_adv: batadv0: Not using interface gretap66 (retrying later): interface not active 22:40:56 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:56 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 439.351573][T25821] batman_adv: Cannot find parent device [ 439.378046][T25821] batman_adv: batadv0: Adding interface: gretap89 22:40:56 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 439.422294][T25821] batman_adv: batadv0: The MTU of interface gretap89 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 439.489994][T25821] batman_adv: batadv0: Not using interface gretap89 (retrying later): interface not active [ 439.505102][T25828] batman_adv: Cannot find parent device [ 439.523122][T25828] batman_adv: batadv0: Adding interface: gretap41 22:40:56 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 439.540790][T25828] batman_adv: batadv0: The MTU of interface gretap41 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:40:56 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 439.583940][T25828] batman_adv: batadv0: Not using interface gretap41 (retrying later): interface not active 22:40:56 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) 22:40:56 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 439.699007][T25841] batman_adv: Cannot find parent device [ 439.729732][T25841] batman_adv: batadv0: Adding interface: gretap67 [ 439.736518][T25841] batman_adv: batadv0: The MTU of interface gretap67 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 439.775248][T25841] batman_adv: batadv0: Not using interface gretap67 (retrying later): interface not active [ 439.873202][T25849] batman_adv: Cannot find parent device [ 439.898891][T25849] batman_adv: batadv0: Adding interface: gretap90 22:40:56 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:56 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 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$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 439.908601][T25849] batman_adv: batadv0: The MTU of interface gretap90 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:40:57 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 439.984334][T25849] batman_adv: batadv0: Not using interface gretap90 (retrying later): interface not active 22:40:57 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:57 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 440.044308][T25859] batman_adv: Cannot find parent device [ 440.117315][T25859] batman_adv: batadv0: Adding interface: gretap42 [ 440.139579][T25859] batman_adv: batadv0: The MTU of interface gretap42 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 440.252915][T25859] batman_adv: batadv0: Not using interface gretap42 (retrying later): interface not active 22:40:57 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:57 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:40:57 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:57 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 440.431523][T25877] batman_adv: Cannot find parent device [ 440.485715][T25877] batman_adv: batadv0: Adding interface: gretap91 [ 440.502185][T25877] batman_adv: batadv0: The MTU of interface gretap91 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 440.561396][T25877] batman_adv: batadv0: Not using interface gretap91 (retrying later): interface not active 22:40:57 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 440.608836][T25894] batman_adv: Cannot find parent device 22:40:57 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:40:57 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 440.666453][T25894] batman_adv: batadv0: Adding interface: gretap43 [ 440.707700][T25894] batman_adv: batadv0: The MTU of interface gretap43 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:40:57 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:57 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 440.758344][T25894] batman_adv: batadv0: Not using interface gretap43 (retrying later): interface not active [ 440.789216][T25903] __nla_validate_parse: 36 callbacks suppressed [ 440.789262][T25903] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. 22:40:57 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:58 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 440.937819][T25905] batman_adv: Cannot find parent device [ 440.973975][T25905] batman_adv: batadv0: Adding interface: gretap92 [ 441.008211][T25905] batman_adv: batadv0: The MTU of interface gretap92 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 441.048130][T25905] batman_adv: batadv0: Not using interface gretap92 (retrying later): interface not active [ 441.080099][T25913] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. [ 441.105333][T25913] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. 22:40:58 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:40:58 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) [ 441.178487][T25918] batman_adv: Cannot find parent device [ 441.196637][T25918] batman_adv: batadv0: Adding interface: gretap44 [ 441.222521][T25918] batman_adv: batadv0: The MTU of interface gretap44 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 441.294580][T25918] batman_adv: batadv0: Not using interface gretap44 (retrying later): interface not active [ 441.307732][T25917] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. 22:40:58 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 441.334881][T25921] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. [ 441.372829][T25932] batman_adv: Cannot find parent device 22:40:58 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:58 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:40:58 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:58 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 441.501819][T25940] batman_adv: Cannot find parent device [ 441.537095][T25940] batman_adv: batadv0: Adding interface: gretap45 [ 441.557438][T25940] batman_adv: batadv0: The MTU of interface gretap45 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 441.618829][T25940] batman_adv: batadv0: Not using interface gretap45 (retrying later): interface not active [ 441.642066][T25948] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. [ 441.654217][T25948] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. 22:40:58 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:58 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:40:58 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 441.724014][T25951] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. [ 441.763517][T25953] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. 22:40:58 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:58 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:58 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 441.838639][T25962] batman_adv: Cannot find parent device [ 441.881399][T25963] batman_adv: Cannot find parent device [ 441.908114][T25963] batman_adv: batadv0: Adding interface: gretap46 [ 441.918262][T25963] batman_adv: batadv0: The MTU of interface gretap46 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 442.008273][T25963] batman_adv: batadv0: Not using interface gretap46 (retrying later): interface not active [ 442.050248][T25978] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. 22:40:59 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:40:59 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:59 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:59 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:40:59 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:59 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:59 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 442.472258][T25987] batman_adv: Cannot find parent device [ 442.582950][T25988] batman_adv: Cannot find parent device [ 442.609246][T25988] batman_adv: batadv0: Adding interface: gretap47 [ 442.616958][T25988] batman_adv: batadv0: The MTU of interface gretap47 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 442.642880][T25988] batman_adv: batadv0: Not using interface gretap47 (retrying later): interface not active 22:40:59 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:40:59 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:40:59 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:40:59 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:59 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:40:59 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 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$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 442.811861][T26011] batman_adv: Cannot find parent device 22:40:59 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:40:59 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 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$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:40:59 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:00 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:00 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:41:00 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:00 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 443.083384][T26037] batman_adv: Cannot find parent device 22:41:00 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:00 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:00 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:00 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:41:00 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:00 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:00 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:00 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 443.393968][T26057] batman_adv: Cannot find parent device 22:41:00 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:00 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:00 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:00 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:00 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:00 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:00 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:00 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:00 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:00 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:00 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 443.846444][T26080] batman_adv: Cannot find parent device 22:41:00 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:00 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:00 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:00 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:01 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 444.070458][T26100] batman_adv: Cannot find parent device 22:41:01 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:01 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:01 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:01 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:01 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 444.304935][T26114] batman_adv: Cannot find parent device 22:41:01 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:01 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:01 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:01 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 444.611588][T26132] batman_adv: Cannot find parent device 22:41:01 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:01 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB, @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 444.754508][T26134] batman_adv: Cannot find parent device 22:41:01 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:01 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:01 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:01 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:02 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 444.935930][T26156] batman_adv: Cannot find parent device 22:41:02 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:02 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB, @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 444.980926][T26164] batman_adv: Cannot find parent device 22:41:02 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:02 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:02 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:02 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:02 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:02 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 445.310701][T26179] batman_adv: Cannot find parent device 22:41:02 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB, @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:02 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:02 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 445.375688][T26188] batman_adv: Cannot find parent device 22:41:02 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 445.449070][T26195] batman_adv: Cannot find parent device 22:41:02 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:02 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:02 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:02 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 445.654482][T26208] batman_adv: Cannot find parent device 22:41:02 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:02 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:02 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:02 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 445.832654][T26223] batman_adv: Cannot find parent device [ 445.948289][T26226] batman_adv: Cannot find parent device [ 445.977606][T26236] __nla_validate_parse: 42 callbacks suppressed [ 445.977634][T26236] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 22:41:03 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 445.996562][T26237] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.1'. [ 446.020637][T26238] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.4'. 22:41:03 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 446.118530][T26240] batman_adv: Cannot find parent device 22:41:03 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 446.160951][T26252] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 22:41:03 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:03 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 446.241859][T26255] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.4'. 22:41:03 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:03 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:03 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) 22:41:03 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 446.436166][T26265] batman_adv: Cannot find parent device 22:41:03 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 446.558770][T26262] batman_adv: Cannot find parent device [ 446.596801][T26268] batman_adv: Cannot find parent device 22:41:03 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 446.696636][T26267] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.1'. [ 446.714402][T26272] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.4'. 22:41:03 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:03 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:03 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:03 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:03 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 446.960587][T26292] batman_adv: Cannot find parent device 22:41:04 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 447.017072][T26303] batman_adv: Cannot find parent device [ 447.052205][T26303] batman_adv: batadv0: Adding interface: gretap68 22:41:04 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:04 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 447.062232][T26303] batman_adv: batadv0: The MTU of interface gretap68 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 447.149766][T26303] batman_adv: batadv0: Not using interface gretap68 (retrying later): interface not active [ 447.177113][T26304] batman_adv: Cannot find parent device 22:41:04 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:04 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 447.208408][T26305] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.4'. [ 447.239952][T26302] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.1'. 22:41:04 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 447.260870][T26315] batman_adv: Cannot find parent device 22:41:04 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:04 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:04 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 447.392874][T26330] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.5'. [ 447.427522][T26331] batman_adv: Cannot find parent device 22:41:04 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 447.453745][T26331] batman_adv: batadv0: Adding interface: gretap69 22:41:04 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 447.492439][T26331] batman_adv: batadv0: The MTU of interface gretap69 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:04 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 447.586003][T26331] batman_adv: batadv0: Not using interface gretap69 (retrying later): interface not active [ 447.618385][T26339] batman_adv: Cannot find parent device [ 447.668578][T26340] batman_adv: Cannot find parent device [ 447.687729][T26348] batman_adv: Cannot find parent device 22:41:04 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:04 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:04 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:04 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:04 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 447.837272][T26365] batman_adv: Cannot find parent device [ 447.857801][T26365] batman_adv: batadv0: Adding interface: gretap70 [ 447.889697][T26365] batman_adv: batadv0: The MTU of interface gretap70 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:05 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 447.938937][T26365] batman_adv: batadv0: Not using interface gretap70 (retrying later): interface not active [ 447.955445][T26369] batman_adv: Cannot find parent device [ 447.975613][T26376] batman_adv: Cannot find parent device 22:41:05 executing program 2: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:05 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) [ 448.023679][T26378] batman_adv: Cannot find parent device 22:41:05 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:05 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 448.093973][T26397] batman_adv: Cannot find parent device 22:41:05 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:41:05 executing program 4: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:05 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 448.311615][T26401] batman_adv: Cannot find parent device [ 448.372154][T26401] batman_adv: batadv0: Adding interface: gretap71 [ 448.387651][T26401] batman_adv: batadv0: The MTU of interface gretap71 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 448.415039][T26401] batman_adv: batadv0: Not using interface gretap71 (retrying later): interface not active [ 448.442884][T26406] batman_adv: Cannot find parent device [ 448.465567][T26406] batman_adv: batadv0: Adding interface: gretap48 22:41:05 executing program 2: socket$inet6(0xa, 0x1, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:05 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 448.481058][T26406] batman_adv: batadv0: The MTU of interface gretap48 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 448.510877][T26406] batman_adv: batadv0: Not using interface gretap48 (retrying later): interface not active 22:41:05 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:05 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:41:05 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:05 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 448.724147][T26425] batman_adv: Cannot find parent device [ 448.772893][T26425] batman_adv: batadv0: Adding interface: gretap72 [ 448.779431][T26425] batman_adv: batadv0: The MTU of interface gretap72 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 448.879263][T26425] batman_adv: batadv0: Not using interface gretap72 (retrying later): interface not active [ 448.914826][T26432] batman_adv: Cannot find parent device 22:41:06 executing program 2: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 448.934495][T26432] batman_adv: batadv0: Adding interface: gretap49 [ 448.952682][T26432] batman_adv: batadv0: The MTU of interface gretap49 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:06 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 448.991091][T26432] batman_adv: batadv0: Not using interface gretap49 (retrying later): interface not active [ 449.007921][T26437] batman_adv: Cannot find parent device 22:41:06 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 449.075525][T26437] batman_adv: batadv0: Adding interface: gretap50 [ 449.103014][T26437] batman_adv: batadv0: The MTU of interface gretap50 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 449.157321][T26437] batman_adv: batadv0: Not using interface gretap50 (retrying later): interface not active 22:41:06 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:06 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) [ 449.235791][T26452] batman_adv: Cannot find parent device [ 449.263978][T26452] batman_adv: batadv0: Adding interface: gretap73 22:41:06 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 449.317078][T26452] batman_adv: batadv0: The MTU of interface gretap73 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 449.413649][T26452] batman_adv: batadv0: Not using interface gretap73 (retrying later): interface not active [ 449.447789][T26459] batman_adv: Cannot find parent device 22:41:06 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:06 executing program 2: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 449.494462][T26459] batman_adv: batadv0: Adding interface: gretap50 [ 449.524209][T26459] batman_adv: batadv0: The MTU of interface gretap50 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:06 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) [ 449.645955][T26459] batman_adv: batadv0: Not using interface gretap50 (retrying later): interface not active 22:41:06 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:06 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 449.792019][T26470] batman_adv: Cannot find parent device [ 449.832045][T26470] batman_adv: batadv0: Adding interface: gretap51 [ 449.838838][T26470] batman_adv: batadv0: The MTU of interface gretap51 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 449.866208][T26470] batman_adv: batadv0: Not using interface gretap51 (retrying later): interface not active 22:41:06 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 449.910317][T26480] batman_adv: Cannot find parent device [ 449.933451][T26480] batman_adv: batadv0: Adding interface: gretap74 [ 449.971126][T26480] batman_adv: batadv0: The MTU of interface gretap74 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:07 executing program 4: socket$inet6(0xa, 0x1, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 450.029371][T26480] batman_adv: batadv0: Not using interface gretap74 (retrying later): interface not active 22:41:07 executing program 2: perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 450.135438][T26490] batman_adv: Cannot find parent device [ 450.158874][T26490] batman_adv: batadv0: Adding interface: gretap51 [ 450.193635][T26490] batman_adv: batadv0: The MTU of interface gretap51 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 450.250925][T26490] batman_adv: batadv0: Not using interface gretap51 (retrying later): interface not active 22:41:07 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:41:07 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:07 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 450.306472][T26508] batman_adv: Cannot find parent device 22:41:07 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 450.377322][T26508] batman_adv: batadv0: Adding interface: gretap52 [ 450.410091][T26508] batman_adv: batadv0: The MTU of interface gretap52 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:07 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 450.482691][T26508] batman_adv: batadv0: Not using interface gretap52 (retrying later): interface not active [ 450.503100][T26507] batman_adv: Cannot find parent device [ 450.528095][T26507] batman_adv: batadv0: Adding interface: gretap75 [ 450.554818][T26507] batman_adv: batadv0: The MTU of interface gretap75 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:07 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 450.629720][T26507] batman_adv: batadv0: Not using interface gretap75 (retrying later): interface not active 22:41:07 executing program 2: perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 450.717326][T26521] batman_adv: Cannot find parent device [ 450.774989][T26521] batman_adv: batadv0: Adding interface: gretap52 [ 450.790818][T26521] batman_adv: batadv0: The MTU of interface gretap52 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 450.847137][T26521] batman_adv: batadv0: Not using interface gretap52 (retrying later): interface not active [ 450.881515][T26529] batman_adv: Cannot find parent device 22:41:07 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:07 executing program 3: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:08 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 451.019647][T26537] __nla_validate_parse: 21 callbacks suppressed [ 451.019662][T26537] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.5'. [ 451.047387][T26538] batman_adv: Cannot find parent device 22:41:08 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 451.064840][T26538] batman_adv: batadv0: Adding interface: gretap76 [ 451.082687][T26538] batman_adv: batadv0: The MTU of interface gretap76 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 451.209621][T26538] batman_adv: batadv0: Not using interface gretap76 (retrying later): interface not active [ 451.253259][T26546] batman_adv: Cannot find parent device [ 451.290703][T26546] batman_adv: batadv0: Adding interface: gretap53 22:41:08 executing program 2: perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 451.312039][T26546] batman_adv: batadv0: The MTU of interface gretap53 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 451.395143][T26546] batman_adv: batadv0: Not using interface gretap53 (retrying later): interface not active [ 451.424791][T26551] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.1'. 22:41:08 executing program 3: socket$inet6(0xa, 0x1, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:08 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 451.437620][T26552] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. [ 451.461898][T26560] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.5'. 22:41:08 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:08 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 451.516656][T26567] batman_adv: Cannot find parent device [ 451.558014][T26567] batman_adv: batadv0: Adding interface: gretap77 22:41:08 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) [ 451.589184][T26567] batman_adv: batadv0: The MTU of interface gretap77 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 451.647430][T26567] batman_adv: batadv0: Not using interface gretap77 (retrying later): interface not active [ 451.663506][T26576] batman_adv: Cannot find parent device [ 451.671844][T26576] batman_adv: batadv0: Adding interface: gretap54 22:41:08 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:08 executing program 3: socket$inet6(0xa, 0x1, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 451.690858][T26576] batman_adv: batadv0: The MTU of interface gretap54 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 451.721756][T26576] batman_adv: batadv0: Not using interface gretap54 (retrying later): interface not active [ 451.741919][T26579] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:08 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 451.875349][T26578] batman_adv: Cannot find parent device 22:41:09 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) 22:41:09 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 451.992299][T26593] batman_adv: Cannot find parent device [ 452.021667][T26593] batman_adv: batadv0: Adding interface: gretap78 [ 452.061917][T26593] batman_adv: batadv0: The MTU of interface gretap78 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 452.126045][T26593] batman_adv: batadv0: Not using interface gretap78 (retrying later): interface not active [ 452.163339][T26596] batman_adv: Cannot find parent device 22:41:09 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 452.181609][T26596] batman_adv: batadv0: Adding interface: gretap55 [ 452.196352][T26596] batman_adv: batadv0: The MTU of interface gretap55 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 452.269324][T26596] batman_adv: batadv0: Not using interface gretap55 (retrying later): interface not active [ 452.315062][T26599] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. [ 452.350960][T26618] batman_adv: Cannot find parent device 22:41:09 executing program 3: socket$inet6(0xa, 0x1, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:09 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) [ 452.374747][T26618] batman_adv: batadv0: Adding interface: gretap79 22:41:09 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:09 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) 22:41:09 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 452.412522][T26618] batman_adv: batadv0: The MTU of interface gretap79 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 452.493868][T26618] batman_adv: batadv0: Not using interface gretap79 (retrying later): interface not active 22:41:09 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:09 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) [ 452.626101][T26625] batman_adv: Cannot find parent device [ 452.701112][T26625] batman_adv: batadv0: Adding interface: gretap56 [ 452.707598][T26625] batman_adv: batadv0: The MTU of interface gretap56 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 452.743005][T26625] batman_adv: batadv0: Not using interface gretap56 (retrying later): interface not active 22:41:09 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 452.778003][T26630] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. [ 452.805765][T26635] batman_adv: Cannot find parent device 22:41:09 executing program 3: connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 452.912526][T26641] batman_adv: Cannot find parent device [ 452.942378][T26641] batman_adv: batadv0: Adding interface: gretap80 22:41:10 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 452.961293][T26641] batman_adv: batadv0: The MTU of interface gretap80 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 452.988918][T26641] batman_adv: batadv0: Not using interface gretap80 (retrying later): interface not active 22:41:10 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) [ 453.018347][T26651] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:10 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:10 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB, @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:10 executing program 4: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 453.117546][T26655] batman_adv: Cannot find parent device [ 453.201092][T26655] batman_adv: batadv0: Adding interface: gretap57 [ 453.230944][T26655] batman_adv: batadv0: The MTU of interface gretap57 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 453.296383][T26655] batman_adv: batadv0: Not using interface gretap57 (retrying later): interface not active 22:41:10 executing program 3: connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:10 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) 22:41:10 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 453.360148][T26672] batman_adv: Cannot find parent device [ 453.382901][T26672] batman_adv: batadv0: Adding interface: gretap81 [ 453.405828][T26672] batman_adv: batadv0: The MTU of interface gretap81 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 453.529404][T26672] batman_adv: batadv0: Not using interface gretap81 (retrying later): interface not active [ 453.550250][T26673] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:10 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 453.598999][T26674] batman_adv: Cannot find parent device [ 453.638718][T26674] batman_adv: batadv0: Adding interface: gretap53 22:41:10 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 453.666440][T26674] batman_adv: batadv0: The MTU of interface gretap53 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 453.733032][T26674] batman_adv: batadv0: Not using interface gretap53 (retrying later): interface not active 22:41:10 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:10 executing program 4: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 453.855662][T26688] batman_adv: Cannot find parent device [ 453.902706][T26688] batman_adv: batadv0: Adding interface: gretap58 [ 453.931257][T26688] batman_adv: batadv0: The MTU of interface gretap58 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 453.999564][T26688] batman_adv: batadv0: Not using interface gretap58 (retrying later): interface not active [ 454.047908][T26697] batman_adv: Cannot find parent device 22:41:11 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:11 executing program 5: connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 454.100872][T26697] batman_adv: batadv0: Adding interface: gretap82 [ 454.107414][T26697] batman_adv: batadv0: The MTU of interface gretap82 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 454.179487][T26697] batman_adv: batadv0: Not using interface gretap82 (retrying later): interface not active [ 454.204982][T26699] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:11 executing program 4: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) 22:41:11 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:11 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 454.343257][T26717] batman_adv: Cannot find parent device [ 454.428992][T26717] batman_adv: batadv0: Adding interface: gretap59 [ 454.467822][T26717] batman_adv: batadv0: The MTU of interface gretap59 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:11 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 454.559396][T26717] batman_adv: batadv0: Not using interface gretap59 (retrying later): interface not active 22:41:11 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 454.640333][T26719] batman_adv: Cannot find parent device [ 454.691579][T26719] batman_adv: batadv0: Adding interface: gretap11 [ 454.698136][T26719] batman_adv: batadv0: The MTU of interface gretap11 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 454.768044][T26719] batman_adv: batadv0: Not using interface gretap11 (retrying later): interface not active 22:41:11 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:11 executing program 5: connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 454.812358][T26730] batman_adv: Cannot find parent device [ 454.835655][T26730] batman_adv: batadv0: Adding interface: gretap83 [ 454.876258][T26730] batman_adv: batadv0: The MTU of interface gretap83 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 454.934859][T26730] batman_adv: batadv0: Not using interface gretap83 (retrying later): interface not active [ 454.961117][T26741] batman_adv: Cannot find parent device 22:41:12 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 455.002644][T26741] batman_adv: batadv0: Adding interface: gretap60 22:41:12 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 455.050824][T26741] batman_adv: batadv0: The MTU of interface gretap60 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 455.134776][T26741] batman_adv: batadv0: Not using interface gretap60 (retrying later): interface not active 22:41:12 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 455.217703][T26749] batman_adv: Cannot find parent device [ 455.272183][T26749] batman_adv: batadv0: Adding interface: gretap12 [ 455.290903][T26749] batman_adv: batadv0: The MTU of interface gretap12 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 455.339982][T26749] batman_adv: batadv0: Not using interface gretap12 (retrying later): interface not active [ 455.441389][T26750] batman_adv: Cannot find parent device 22:41:12 executing program 5: connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 455.494788][T26750] batman_adv: batadv0: Adding interface: gretap54 [ 455.521020][T26750] batman_adv: batadv0: The MTU of interface gretap54 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 455.559495][T26750] batman_adv: batadv0: Not using interface gretap54 (retrying later): interface not active [ 455.576084][T26760] batman_adv: Cannot find parent device 22:41:12 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:12 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 455.600964][T26760] batman_adv: batadv0: Adding interface: gretap84 [ 455.621423][T26760] batman_adv: batadv0: The MTU of interface gretap84 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 455.722618][T26760] batman_adv: batadv0: Not using interface gretap84 (retrying later): interface not active 22:41:12 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 455.770888][T26767] batman_adv: Cannot find parent device [ 455.796518][T26767] batman_adv: batadv0: Adding interface: gretap61 22:41:12 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 455.822656][T26767] batman_adv: batadv0: The MTU of interface gretap61 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 455.870103][T26767] batman_adv: batadv0: Not using interface gretap61 (retrying later): interface not active [ 455.886240][T26776] batman_adv: Cannot find parent device [ 455.903438][T26776] batman_adv: batadv0: Adding interface: gretap13 22:41:13 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 455.944407][T26776] batman_adv: batadv0: The MTU of interface gretap13 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 456.007893][T26776] batman_adv: batadv0: Not using interface gretap13 (retrying later): interface not active 22:41:13 executing program 5: socket$inet6(0xa, 0x1, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 456.115016][T26779] batman_adv: Cannot find parent device [ 456.148452][T26779] batman_adv: batadv0: Adding interface: gretap55 [ 456.170810][T26779] batman_adv: batadv0: The MTU of interface gretap55 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 456.239354][T26779] batman_adv: batadv0: Not using interface gretap55 (retrying later): interface not active [ 456.291221][T26790] batman_adv: Cannot find parent device [ 456.321105][T26790] batman_adv: batadv0: Adding interface: gretap85 22:41:13 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:13 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) [ 456.345805][T26790] batman_adv: batadv0: The MTU of interface gretap85 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 456.480048][T26790] batman_adv: batadv0: Not using interface gretap85 (retrying later): interface not active 22:41:13 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 456.552818][T26799] batman_adv: Cannot find parent device [ 456.572941][T26799] batman_adv: batadv0: Adding interface: gretap62 22:41:13 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 456.609357][T26799] batman_adv: batadv0: The MTU of interface gretap62 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 456.679259][T26799] batman_adv: batadv0: Not using interface gretap62 (retrying later): interface not active [ 456.717721][T26804] batman_adv: Cannot find parent device 22:41:13 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 456.756661][T26804] batman_adv: batadv0: Adding interface: gretap14 [ 456.772596][T26804] batman_adv: batadv0: The MTU of interface gretap14 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:13 executing program 4: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 456.839310][T26804] batman_adv: batadv0: Not using interface gretap14 (retrying later): interface not active [ 456.875269][T26822] batman_adv: Cannot find parent device 22:41:14 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 456.918475][T26822] batman_adv: batadv0: Adding interface: gretap86 [ 456.942516][T26822] batman_adv: batadv0: The MTU of interface gretap86 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:14 executing program 5: socket$inet6(0xa, 0x1, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 457.026618][T26822] batman_adv: batadv0: Not using interface gretap86 (retrying later): interface not active [ 457.054264][T26821] __nla_validate_parse: 5 callbacks suppressed [ 457.054272][T26821] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:14 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x0, 0x80002, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 457.097552][T26821] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 457.144181][T26829] batman_adv: Cannot find parent device [ 457.170291][T26829] batman_adv: batadv0: Adding interface: gretap63 22:41:14 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 457.215013][T26829] batman_adv: batadv0: The MTU of interface gretap63 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 457.248350][T26829] batman_adv: batadv0: Not using interface gretap63 (retrying later): interface not active 22:41:14 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 457.276196][T26837] batman_adv: Cannot find parent device [ 457.294348][T26837] batman_adv: batadv0: Adding interface: gretap56 [ 457.339604][T26837] batman_adv: batadv0: The MTU of interface gretap56 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 457.411926][T26837] batman_adv: batadv0: Not using interface gretap56 (retrying later): interface not active 22:41:14 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:14 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 457.531112][T26839] batman_adv: Cannot find parent device [ 457.582906][T26839] batman_adv: batadv0: Adding interface: gretap15 [ 457.594382][T26839] batman_adv: batadv0: The MTU of interface gretap15 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 457.632673][T26839] batman_adv: batadv0: Not using interface gretap15 (retrying later): interface not active [ 457.680243][T26848] batman_adv: Cannot find parent device [ 457.734199][T26853] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 457.753499][T26853] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:14 executing program 5: socket$inet6(0xa, 0x1, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 457.781414][T26856] batman_adv: Cannot find parent device [ 457.788382][T26856] batman_adv: batadv0: Adding interface: gretap64 [ 457.804549][T26856] batman_adv: batadv0: The MTU of interface gretap64 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:14 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 457.834150][T26856] batman_adv: batadv0: Not using interface gretap64 (retrying later): interface not active [ 457.880316][T26866] batman_adv: Cannot find parent device [ 457.887722][T26866] batman_adv: batadv0: Adding interface: gretap57 22:41:14 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:15 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x0) [ 457.923178][T26866] batman_adv: batadv0: The MTU of interface gretap57 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 458.037096][T26866] batman_adv: batadv0: Not using interface gretap57 (retrying later): interface not active 22:41:15 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:15 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b0001006772657461700000", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 458.089675][T26881] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 458.099000][T26881] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:15 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 458.231334][T26882] batman_adv: Cannot find parent device [ 458.259088][T26882] batman_adv: batadv0: Adding interface: gretap16 [ 458.277773][T26882] batman_adv: batadv0: The MTU of interface gretap16 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 458.318747][T26882] batman_adv: batadv0: Not using interface gretap16 (retrying later): interface not active 22:41:15 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 458.334955][T26886] batman_adv: Cannot find parent device [ 458.356280][T26886] batman_adv: batadv0: Adding interface: gretap65 [ 458.379097][T26886] batman_adv: batadv0: The MTU of interface gretap65 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:15 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x0) 22:41:15 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 458.489378][T26886] batman_adv: batadv0: Not using interface gretap65 (retrying later): interface not active [ 458.514349][T26896] batman_adv: Cannot find parent device [ 458.574472][T26899] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. [ 458.610201][T26899] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. [ 458.621730][T26902] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. [ 458.632246][T26902] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:15 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 458.682733][T26908] batman_adv: Cannot find parent device [ 458.712753][T26908] batman_adv: batadv0: Adding interface: gretap17 22:41:15 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 458.768666][T26908] batman_adv: batadv0: The MTU of interface gretap17 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 458.860013][T26908] batman_adv: batadv0: Not using interface gretap17 (retrying later): interface not active [ 458.886703][T26918] batman_adv: Cannot find parent device [ 458.924309][T26918] batman_adv: batadv0: Adding interface: gretap66 22:41:16 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 458.962837][T26918] batman_adv: batadv0: The MTU of interface gretap66 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:16 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x68004800, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x0) 22:41:16 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x0, 0x80002, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 459.020215][T26918] batman_adv: batadv0: Not using interface gretap66 (retrying later): interface not active [ 459.043627][T26926] batman_adv: Cannot find parent device 22:41:16 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:16 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:16 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 459.245274][T26937] batman_adv: Cannot find parent device [ 459.323354][T26951] batman_adv: Cannot find parent device 22:41:16 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 459.370777][T26944] batman_adv: Cannot find parent device 22:41:16 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:16 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 459.437208][T26949] batman_adv: Cannot find parent device [ 459.494570][T26949] batman_adv: batadv0: Adding interface: gretap67 22:41:16 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 459.521453][T26949] batman_adv: batadv0: The MTU of interface gretap67 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 459.585343][T26949] batman_adv: batadv0: Not using interface gretap67 (retrying later): interface not active 22:41:16 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:16 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 459.648910][T26968] batman_adv: Cannot find parent device 22:41:16 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 459.777519][T26971] batman_adv: Cannot find parent device [ 459.811429][T26986] batman_adv: Cannot find parent device 22:41:16 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:16 executing program 1: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 459.856361][T26986] batman_adv: batadv0: Adding interface: gretap68 [ 459.874563][T26986] batman_adv: batadv0: The MTU of interface gretap68 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 459.985450][T26986] batman_adv: batadv0: Not using interface gretap68 (retrying later): interface not active 22:41:17 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:17 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 460.030478][T26988] batman_adv: Cannot find parent device [ 460.070440][T26996] batman_adv: Cannot find parent device 22:41:17 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:17 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:17 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:41:17 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x0, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 460.221883][T27011] batman_adv: Cannot find parent device [ 460.256356][T27011] batman_adv: batadv0: Adding interface: gretap21 [ 460.285462][T27011] batman_adv: batadv0: The MTU of interface gretap21 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 460.400558][T27011] batman_adv: batadv0: Not using interface gretap21 (retrying later): interface not active [ 460.472204][T27013] batman_adv: Cannot find parent device [ 460.488196][T27013] batman_adv: batadv0: Adding interface: gretap69 22:41:17 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 460.507103][T27013] batman_adv: batadv0: The MTU of interface gretap69 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 460.565478][T27013] batman_adv: batadv0: Not using interface gretap69 (retrying later): interface not active [ 460.599523][T27022] batman_adv: Cannot find parent device 22:41:17 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 460.628797][T27023] batman_adv: Cannot find parent device 22:41:17 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 460.800817][T27025] batman_adv: Cannot find parent device [ 460.833139][T27036] batman_adv: Cannot find parent device [ 460.856178][T27036] batman_adv: batadv0: Adding interface: gretap22 [ 460.872469][T27036] batman_adv: batadv0: The MTU of interface gretap22 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 460.973420][T27036] batman_adv: batadv0: Not using interface gretap22 (retrying later): interface not active [ 461.084642][T27046] batman_adv: Cannot find parent device 22:41:18 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x0, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 461.135089][T27046] batman_adv: batadv0: Adding interface: gretap70 22:41:18 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c0002800800", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) [ 461.193131][T27046] batman_adv: batadv0: The MTU of interface gretap70 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 461.228753][T27046] batman_adv: batadv0: Not using interface gretap70 (retrying later): interface not active 22:41:18 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:18 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:18 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) 22:41:18 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 461.338148][T27066] batman_adv: Cannot find parent device [ 461.390418][T27067] batman_adv: Cannot find parent device [ 461.408333][T27067] batman_adv: batadv0: Adding interface: gretap71 [ 461.434088][T27067] batman_adv: batadv0: The MTU of interface gretap71 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 461.582485][T27067] batman_adv: batadv0: Not using interface gretap71 (retrying later): interface not active 22:41:18 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:18 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 461.640790][T27078] batman_adv: Cannot find parent device [ 461.741331][T27081] batman_adv: Cannot find parent device 22:41:18 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 461.891219][T27096] batman_adv: Cannot find parent device 22:41:19 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c000280080001", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:19 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 461.970880][T27099] batman_adv: Cannot find parent device 22:41:19 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:19 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:19 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) [ 462.092875][T27115] batman_adv: Cannot find parent device [ 462.113318][T27115] batman_adv: batadv0: Adding interface: gretap23 [ 462.130251][T27115] batman_adv: batadv0: The MTU of interface gretap23 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 462.283741][T27115] batman_adv: batadv0: Not using interface gretap23 (retrying later): interface not active [ 462.306103][T27117] __nla_validate_parse: 16 callbacks suppressed [ 462.306111][T27117] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:19 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) 22:41:19 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 462.449861][T27119] batman_adv: Cannot find parent device [ 462.487985][T27119] batman_adv: batadv0: Adding interface: gretap62 [ 462.509448][T27119] batman_adv: batadv0: The MTU of interface gretap62 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 462.589057][T27119] batman_adv: batadv0: Not using interface gretap62 (retrying later): interface not active [ 462.662765][T27130] batman_adv: Cannot find parent device [ 462.758618][T27132] batman_adv: Cannot find parent device 22:41:19 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 462.878186][T27131] batman_adv: Cannot find parent device [ 462.954553][T27139] batman_adv: Cannot find parent device [ 462.968376][T27139] batman_adv: batadv0: Adding interface: gretap24 [ 463.000795][T27139] batman_adv: batadv0: The MTU of interface gretap24 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 463.068804][T27139] batman_adv: batadv0: Not using interface gretap24 (retrying later): interface not active [ 463.154081][T27141] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 463.226687][T27156] batman_adv: Cannot find parent device 22:41:20 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:20 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) 22:41:20 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x0, 0x80002, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:20 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 463.272165][T27156] batman_adv: batadv0: Adding interface: gretap63 [ 463.278616][T27156] batman_adv: batadv0: The MTU of interface gretap63 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 463.483020][T27156] batman_adv: batadv0: Not using interface gretap63 (retrying later): interface not active 22:41:20 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) [ 463.528850][T27169] batman_adv: Cannot find parent device 22:41:20 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 463.637681][T27170] batman_adv: Cannot find parent device [ 463.698441][T27170] batman_adv: batadv0: Adding interface: gretap25 [ 463.705506][T27170] batman_adv: batadv0: The MTU of interface gretap25 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 463.732799][T27170] batman_adv: batadv0: Not using interface gretap25 (retrying later): interface not active [ 463.775624][T27172] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 463.801653][T27176] batman_adv: Cannot find parent device 22:41:20 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:20 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:20 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 463.851987][T27186] batman_adv: Cannot find parent device [ 463.895639][T27188] batman_adv: Cannot find parent device [ 463.953789][T27188] batman_adv: batadv0: Adding interface: gretap64 [ 463.998997][T27188] batman_adv: batadv0: The MTU of interface gretap64 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 464.079055][T27188] batman_adv: batadv0: Not using interface gretap64 (retrying later): interface not active 22:41:21 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x0, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:21 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) [ 464.154869][T27206] batman_adv: Cannot find parent device 22:41:21 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 464.230569][T27206] batman_adv: batadv0: Adding interface: gretap26 [ 464.237006][T27206] batman_adv: batadv0: The MTU of interface gretap26 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 464.306141][T27206] batman_adv: batadv0: Not using interface gretap26 (retrying later): interface not active [ 464.353163][T27207] batman_adv: Cannot find parent device [ 464.396406][T27205] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:21 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b62"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:21 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:21 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 464.558817][T27216] batman_adv: Cannot find parent device 22:41:21 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 464.729036][T27218] batman_adv: Cannot find parent device 22:41:21 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:21 executing program 4: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 464.788216][T27224] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 464.810774][T27234] batman_adv: Cannot find parent device 22:41:22 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:22 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:22 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:22 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x0, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:22 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 464.934737][T27255] batman_adv: Cannot find parent device 22:41:22 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:22 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 465.174806][T27268] batman_adv: Cannot find parent device 22:41:22 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 465.318180][T27269] batman_adv: Cannot find parent device 22:41:22 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 465.361585][T27269] batman_adv: batadv0: Adding interface: gretap27 [ 465.373858][T27269] batman_adv: batadv0: The MTU of interface gretap27 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:22 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 465.408108][T27269] batman_adv: batadv0: Not using interface gretap27 (retrying later): interface not active [ 465.439594][T27270] batman_adv: Cannot find parent device [ 465.455576][T27282] batman_adv: Cannot find parent device 22:41:22 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:22 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x0, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 465.584841][T27292] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:22 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:22 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:22 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:22 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 465.758292][T27310] batman_adv: Cannot find parent device [ 465.890422][T27309] batman_adv: Cannot find parent device [ 465.934596][T27309] batman_adv: batadv0: Adding interface: gretap28 [ 465.950317][T27309] batman_adv: batadv0: The MTU of interface gretap28 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:23 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) socket(0x10, 0x803, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 465.990931][T27309] batman_adv: batadv0: Not using interface gretap28 (retrying later): interface not active [ 466.015637][T27316] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:23 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="44000000100001040000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:23 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:23 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:23 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:23 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x0, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:23 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) socket(0x10, 0x803, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 466.292782][T27339] batman_adv: Cannot find parent device [ 466.362496][T27343] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.0'. [ 466.383369][T27346] batman_adv: Cannot find parent device 22:41:23 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:23 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) socket(0x10, 0x803, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 466.508016][T27342] batman_adv: Cannot find parent device [ 466.533406][T27342] batman_adv: batadv0: Adding interface: gretap29 [ 466.549219][T27342] batman_adv: batadv0: The MTU of interface gretap29 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 466.578201][T27342] batman_adv: batadv0: Not using interface gretap29 (retrying later): interface not active [ 466.606870][T27366] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:23 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:23 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:23 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:23 executing program 1: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:23 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:23 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 466.832353][T27378] batman_adv: Cannot find parent device [ 466.935065][T27376] batman_adv: Cannot find parent device [ 466.972585][T27385] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:24 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:24 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:24 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:24 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 467.003551][T27392] batman_adv: Cannot find parent device 22:41:24 executing program 1: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 467.202627][T27407] batman_adv: Cannot find parent device 22:41:24 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:24 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:24 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 467.304821][T27421] batman_adv: Cannot find parent device 22:41:24 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:24 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:24 executing program 1: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 467.450340][T27432] __nla_validate_parse: 1 callbacks suppressed [ 467.450349][T27432] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:24 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:24 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:24 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 467.607680][T27443] batman_adv: Cannot find parent device [ 467.651683][T27443] batman_adv: batadv0: Adding interface: gretap65 [ 467.663125][T27443] batman_adv: batadv0: The MTU of interface gretap65 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:24 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:24 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 467.739501][T27443] batman_adv: batadv0: Not using interface gretap65 (retrying later): interface not active 22:41:24 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:24 executing program 4: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 467.874203][T27445] batman_adv: Cannot find parent device [ 468.027807][T27444] batman_adv: Cannot find parent device 22:41:25 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 468.108208][T27455] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.0'. [ 468.143692][T27473] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. 22:41:25 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:25 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/18, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:25 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:25 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:25 executing program 1: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r0, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:25 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:25 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 468.368357][T27489] batman_adv: Cannot find parent device [ 468.407805][T27487] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.0'. [ 468.443076][T27494] batman_adv: Cannot find parent device 22:41:25 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 468.485043][T27490] batman_adv: Cannot find parent device 22:41:25 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:25 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:25 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:25 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 468.684052][T27517] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:25 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:25 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:25 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 468.843955][T27524] batman_adv: Cannot find parent device [ 468.878356][T27526] batman_adv: Cannot find parent device 22:41:25 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 468.896847][T27526] batman_adv: batadv0: Adding interface: gretap30 [ 468.910373][T27526] batman_adv: batadv0: The MTU of interface gretap30 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 468.945922][T27526] batman_adv: batadv0: Not using interface gretap30 (retrying later): interface not active [ 468.974614][T27531] batman_adv: Cannot find parent device 22:41:26 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 468.998509][T27538] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:26 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) 22:41:26 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:26 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/19, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:26 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:26 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:26 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 469.173204][T27560] netlink: 36 bytes leftover after parsing attributes in process `syz-executor.0'. 22:41:26 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:26 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:26 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:26 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:26 executing program 1: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n', @ANYRES32=r1], 0x44}}, 0x0) [ 469.456965][T27569] batman_adv: Cannot find parent device [ 469.533653][T27573] batman_adv: Cannot find parent device [ 469.547615][T27573] batman_adv: batadv0: Adding interface: gretap106 [ 469.561210][T27573] batman_adv: batadv0: The MTU of interface gretap106 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 469.587470][T27573] batman_adv: batadv0: Not using interface gretap106 (retrying later): interface not active 22:41:26 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:26 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 469.631804][T27583] batman_adv: Cannot find parent device 22:41:26 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:26 executing program 5: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:26 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:26 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:26 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:26 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:26 executing program 5: socket$inet6(0xa, 0x1, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 469.829868][T27604] batman_adv: Cannot find parent device [ 469.907667][T27607] batman_adv: Cannot find parent device [ 469.942212][T27607] batman_adv: batadv0: Adding interface: gretap107 22:41:27 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 469.951322][T27607] batman_adv: batadv0: The MTU of interface gretap107 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 469.980469][T27607] batman_adv: batadv0: Not using interface gretap107 (retrying later): interface not active [ 469.996012][T27608] batman_adv: Cannot find parent device [ 470.030747][T27608] batman_adv: batadv0: Adding interface: gretap32 [ 470.051949][T27608] batman_adv: batadv0: The MTU of interface gretap32 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 470.130019][T27608] batman_adv: batadv0: Not using interface gretap32 (retrying later): interface not active 22:41:27 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:27 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:27 executing program 5: socket$inet6(0xa, 0x1, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 470.272557][T27631] batman_adv: Cannot find parent device 22:41:27 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:27 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 470.312778][T27631] batman_adv: batadv0: Adding interface: gretap108 [ 470.333506][T27631] batman_adv: batadv0: The MTU of interface gretap108 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 470.415134][T27631] batman_adv: batadv0: Not using interface gretap108 (retrying later): interface not active 22:41:27 executing program 4: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:27 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:27 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 470.504612][T27650] batman_adv: Cannot find parent device [ 470.518560][T27650] batman_adv: batadv0: Adding interface: gretap33 22:41:27 executing program 5: socket$inet6(0xa, 0x1, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:27 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 470.570446][T27650] batman_adv: batadv0: The MTU of interface gretap33 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 470.650168][T27650] batman_adv: batadv0: Not using interface gretap33 (retrying later): interface not active 22:41:27 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:27 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:27 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 470.693206][T27663] batman_adv: Cannot find parent device [ 470.723165][T27663] batman_adv: batadv0: Adding interface: gretap109 22:41:27 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_int(r0, 0x29, 0x1000000000021, &(0x7f00000005c0)=0x1, 0x4) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r2, @ANYBLOB="592f7d7327130c9dd2e380e07ebec07c4218c7bded25e51712178afd2ef22b"], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 470.771490][T27663] batman_adv: batadv0: The MTU of interface gretap109 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 470.834168][T27663] batman_adv: batadv0: Not using interface gretap109 (retrying later): interface not active [ 470.873420][T27674] batman_adv: Cannot find parent device 22:41:27 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 470.886660][T27674] batman_adv: batadv0: Adding interface: gretap66 22:41:27 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:28 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:28 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 470.916009][T27674] batman_adv: batadv0: The MTU of interface gretap66 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:28 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, 0x0, &(0x7f00000002c0)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:28 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 470.987430][T27674] batman_adv: batadv0: Not using interface gretap66 (retrying later): interface not active 22:41:28 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:28 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:28 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 471.100071][T27690] batman_adv: Cannot find parent device [ 471.134904][T27690] batman_adv: batadv0: Adding interface: gretap110 [ 471.153063][T27690] batman_adv: batadv0: The MTU of interface gretap110 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 471.228304][T27690] batman_adv: batadv0: Not using interface gretap110 (retrying later): interface not active [ 471.259497][T27698] batman_adv: Cannot find parent device [ 471.283344][T27698] batman_adv: batadv0: Adding interface: gretap34 22:41:28 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 471.317801][T27698] batman_adv: batadv0: The MTU of interface gretap34 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 471.373202][T27698] batman_adv: batadv0: Not using interface gretap34 (retrying later): interface not active 22:41:28 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, 0x0, &(0x7f00000002c0)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:28 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:28 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:28 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 471.583003][T27704] batman_adv: Cannot find parent device [ 471.623285][T27704] batman_adv: batadv0: Adding interface: gretap67 [ 471.637629][T27704] batman_adv: batadv0: The MTU of interface gretap67 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 471.667438][T27704] batman_adv: batadv0: Not using interface gretap67 (retrying later): interface not active 22:41:28 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 471.697962][T27715] batman_adv: Cannot find parent device [ 471.723834][T27715] batman_adv: batadv0: Adding interface: gretap111 [ 471.747897][T27715] batman_adv: batadv0: The MTU of interface gretap111 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 471.780343][T27715] batman_adv: batadv0: Not using interface gretap111 (retrying later): interface not active 22:41:28 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:28 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 471.812131][T27728] batman_adv: Cannot find parent device 22:41:28 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, 0x0, &(0x7f00000002c0)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 471.862648][T27728] batman_adv: batadv0: Adding interface: gretap35 22:41:28 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 471.910112][T27728] batman_adv: batadv0: The MTU of interface gretap35 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 472.007163][T27728] batman_adv: batadv0: Not using interface gretap35 (retrying later): interface not active 22:41:29 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 472.105603][T27738] batman_adv: Cannot find parent device [ 472.165929][T27738] batman_adv: batadv0: Adding interface: gretap68 [ 472.179924][T27738] batman_adv: batadv0: The MTU of interface gretap68 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 472.207166][T27738] batman_adv: batadv0: Not using interface gretap68 (retrying later): interface not active 22:41:29 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:29 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 472.285354][T27744] batman_adv: Cannot find parent device 22:41:29 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 472.347012][T27744] batman_adv: batadv0: Adding interface: gretap112 [ 472.369100][T27744] batman_adv: batadv0: The MTU of interface gretap112 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 472.448554][T27744] batman_adv: batadv0: Not using interface gretap112 (retrying later): interface not active 22:41:29 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$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, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 472.559054][T27758] batman_adv: Cannot find parent device [ 472.599026][T27758] batman_adv: batadv0: Adding interface: gretap36 22:41:29 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 472.605524][T27758] batman_adv: batadv0: The MTU of interface gretap36 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:29 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 472.682917][T27758] batman_adv: batadv0: Not using interface gretap36 (retrying later): interface not active 22:41:29 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:29 executing program 1: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 472.813870][T27768] batman_adv: Cannot find parent device [ 472.846695][T27768] batman_adv: batadv0: Adding interface: gretap69 [ 472.886387][T27768] batman_adv: batadv0: The MTU of interface gretap69 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 472.942471][T27768] batman_adv: batadv0: Not using interface gretap69 (retrying later): interface not active [ 472.962745][T27778] batman_adv: Cannot find parent device [ 472.982033][T27778] batman_adv: batadv0: Adding interface: gretap113 [ 472.996443][T27778] batman_adv: batadv0: The MTU of interface gretap113 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:30 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) 22:41:30 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 473.077461][T27778] batman_adv: batadv0: Not using interface gretap113 (retrying later): interface not active 22:41:30 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 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$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:30 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:30 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 473.236822][T27792] batman_adv: Cannot find parent device 22:41:30 executing program 1: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00', @ANYRES32=r1], 0x44}}, 0x0) [ 473.311603][T27799] batman_adv: Cannot find parent device [ 473.343480][T27799] batman_adv: batadv0: Adding interface: gretap70 [ 473.365992][T27799] batman_adv: batadv0: The MTU of interface gretap70 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 473.434363][T27799] batman_adv: batadv0: Not using interface gretap70 (retrying later): interface not active 22:41:30 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:30 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) [ 473.576873][T27805] batman_adv: Cannot find parent device [ 473.613747][T27805] batman_adv: batadv0: Adding interface: gretap114 [ 473.657792][T27805] batman_adv: batadv0: The MTU of interface gretap114 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 473.764584][T27805] batman_adv: batadv0: Not using interface gretap114 (retrying later): interface not active 22:41:30 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:30 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x0) 22:41:30 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 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$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 473.868019][T27815] batman_adv: Cannot find parent device [ 473.908807][T27828] batman_adv: Cannot find parent device 22:41:31 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:31 executing program 1: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(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$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 473.994475][T27828] batman_adv: batadv0: Adding interface: gretap71 [ 474.028694][T27828] batman_adv: batadv0: The MTU of interface gretap71 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 474.116253][T27828] batman_adv: batadv0: Not using interface gretap71 (retrying later): interface not active 22:41:31 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:31 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:31 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) [ 474.175907][T27842] batman_adv: Cannot find parent device [ 474.275217][T27842] batman_adv: batadv0: Adding interface: gretap115 [ 474.313076][T27842] batman_adv: batadv0: The MTU of interface gretap115 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 474.358398][T27842] batman_adv: batadv0: Not using interface gretap115 (retrying later): interface not active 22:41:31 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:31 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:31 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) 22:41:31 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:31 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x0) [ 474.506396][T27858] batman_adv: Cannot find parent device 22:41:31 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 474.581565][T27858] batman_adv: batadv0: Adding interface: gretap72 [ 474.594664][T27858] batman_adv: batadv0: The MTU of interface gretap72 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 474.643598][T27858] batman_adv: batadv0: Not using interface gretap72 (retrying later): interface not active 22:41:31 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:31 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:31 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 474.762875][T27872] batman_adv: Cannot find parent device 22:41:31 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 474.837112][T27872] batman_adv: batadv0: Adding interface: gretap39 [ 474.851861][T27872] batman_adv: batadv0: The MTU of interface gretap39 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:32 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 474.912411][T27872] batman_adv: batadv0: Not using interface gretap39 (retrying later): interface not active [ 474.989171][T27875] batman_adv: Cannot find parent device [ 475.023897][T27875] batman_adv: batadv0: Adding interface: gretap116 22:41:32 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) dup(0xffffffffffffffff) [ 475.037903][T27875] batman_adv: batadv0: The MTU of interface gretap116 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:32 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 475.101333][T27875] batman_adv: batadv0: Not using interface gretap116 (retrying later): interface not active 22:41:32 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:32 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, 0x0, &(0x7f00000002c0)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:32 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x0) [ 475.198761][T27889] batman_adv: Cannot find parent device 22:41:32 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 475.260781][T27889] batman_adv: batadv0: Adding interface: gretap73 [ 475.278958][T27889] batman_adv: batadv0: The MTU of interface gretap73 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 475.334772][T27889] batman_adv: batadv0: Not using interface gretap73 (retrying later): interface not active [ 475.366125][T27902] batman_adv: Cannot find parent device 22:41:32 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:41:32 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 475.389881][T27902] batman_adv: batadv0: Adding interface: gretap40 [ 475.422302][T27902] batman_adv: batadv0: The MTU of interface gretap40 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 475.496457][T27902] batman_adv: batadv0: Not using interface gretap40 (retrying later): interface not active 22:41:32 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:32 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:32 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) [ 475.602246][T27911] batman_adv: Cannot find parent device 22:41:32 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 475.671414][T27911] batman_adv: batadv0: Adding interface: gretap117 [ 475.694324][T27911] batman_adv: batadv0: The MTU of interface gretap117 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:32 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 475.756440][T27911] batman_adv: batadv0: Not using interface gretap117 (retrying later): interface not active 22:41:32 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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, &(0x7f00000002c0)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 475.933561][T27922] batman_adv: Cannot find parent device 22:41:33 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x0) [ 476.006954][T27922] batman_adv: batadv0: Adding interface: gretap74 22:41:33 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 476.036704][T27922] batman_adv: batadv0: The MTU of interface gretap74 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 476.108186][T27922] batman_adv: batadv0: Not using interface gretap74 (retrying later): interface not active 22:41:33 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:33 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 476.153846][T27935] batman_adv: Cannot find parent device [ 476.191099][T27935] batman_adv: batadv0: Adding interface: gretap41 22:41:33 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 476.222638][T27935] batman_adv: batadv0: The MTU of interface gretap41 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 476.305631][T27935] batman_adv: batadv0: Not using interface gretap41 (retrying later): interface not active [ 476.333541][T27948] batman_adv: Cannot find parent device [ 476.348212][T27948] batman_adv: batadv0: Adding interface: gretap118 [ 476.362813][T27948] batman_adv: batadv0: The MTU of interface gretap118 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 476.424949][T27948] batman_adv: batadv0: Not using interface gretap118 (retrying later): interface not active 22:41:33 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 476.466111][T27957] batman_adv: Cannot find parent device [ 476.481513][T27957] batman_adv: batadv0: Adding interface: gretap87 22:41:33 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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, &(0x7f00000002c0)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 476.494900][T27957] batman_adv: batadv0: The MTU of interface gretap87 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:33 executing program 0: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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, &(0x7f00000002c0)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 476.589739][T27957] batman_adv: batadv0: Not using interface gretap87 (retrying later): interface not active 22:41:33 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:33 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 476.695020][T27963] batman_adv: Cannot find parent device [ 476.759243][T27963] batman_adv: batadv0: Adding interface: gretap75 [ 476.765796][T27963] batman_adv: batadv0: The MTU of interface gretap75 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 476.833253][T27963] batman_adv: batadv0: Not using interface gretap75 (retrying later): interface not active 22:41:33 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$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, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 476.930243][T27973] batman_adv: Cannot find parent device [ 476.967277][T27973] batman_adv: batadv0: Adding interface: gretap42 22:41:34 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$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, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 476.974305][T27973] batman_adv: batadv0: The MTU of interface gretap42 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 477.037879][T27973] batman_adv: batadv0: Not using interface gretap42 (retrying later): interface not active 22:41:34 executing program 0: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, 0x0, &(0x7f00000002c0)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 477.106897][T27983] batman_adv: Cannot find parent device [ 477.132783][T27983] batman_adv: batadv0: Adding interface: gretap88 22:41:34 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 477.162696][T27983] batman_adv: batadv0: The MTU of interface gretap88 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 477.230463][T27983] batman_adv: batadv0: Not using interface gretap88 (retrying later): interface not active 22:41:34 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:34 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$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, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:34 executing program 0: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, 0x0, &(0x7f00000002c0)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:34 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) socket(0x10, 0x803, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:41:34 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 477.401046][T28003] batman_adv: Cannot find parent device [ 477.473948][T28003] batman_adv: batadv0: Adding interface: gretap43 [ 477.492433][T28003] batman_adv: batadv0: The MTU of interface gretap43 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 477.552692][T28003] batman_adv: batadv0: Not using interface gretap43 (retrying later): interface not active 22:41:34 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x0) 22:41:34 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:41:34 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$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, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:34 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:34 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) socket(0x10, 0x803, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 477.634462][T28019] batman_adv: Cannot find parent device [ 477.672217][T28019] batman_adv: batadv0: Adding interface: gretap89 [ 477.736728][T28019] batman_adv: batadv0: The MTU of interface gretap89 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 477.833895][T28019] batman_adv: batadv0: Not using interface gretap89 (retrying later): interface not active [ 477.860925][T28028] batman_adv: Cannot find parent device 22:41:34 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 477.886723][T28028] batman_adv: batadv0: Adding interface: gretap119 [ 477.906306][T28028] batman_adv: batadv0: The MTU of interface gretap119 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 477.965922][T28028] batman_adv: batadv0: Not using interface gretap119 (retrying later): interface not active 22:41:35 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) socket(0x10, 0x803, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:41:35 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:35 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 478.086716][T28035] batman_adv: Cannot find parent device 22:41:35 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x0) [ 478.128588][T28035] batman_adv: batadv0: Adding interface: gretap44 22:41:35 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 478.162306][T28035] batman_adv: batadv0: The MTU of interface gretap44 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 478.231980][T28035] batman_adv: batadv0: Not using interface gretap44 (retrying later): interface not active [ 478.283170][T28044] batman_adv: Cannot find parent device [ 478.302265][T28044] batman_adv: batadv0: Adding interface: gretap90 22:41:35 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:41:35 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r3, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 478.317209][T28044] batman_adv: batadv0: The MTU of interface gretap90 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 478.372552][T28044] batman_adv: batadv0: Not using interface gretap90 (retrying later): interface not active 22:41:35 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x0, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 478.431079][T28056] batman_adv: Cannot find parent device [ 478.458219][T28056] batman_adv: batadv0: Adding interface: gretap120 22:41:35 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$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) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) 22:41:35 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 478.477727][T28056] batman_adv: batadv0: The MTU of interface gretap120 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:35 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) dup(0xffffffffffffffff) [ 478.572189][T28056] batman_adv: batadv0: Not using interface gretap120 (retrying later): interface not active [ 478.621860][T28066] batman_adv: Cannot find parent device [ 478.639190][T28066] batman_adv: batadv0: Adding interface: gretap45 22:41:35 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) dup(0xffffffffffffffff) 22:41:35 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x0) [ 478.669458][T28066] batman_adv: batadv0: The MTU of interface gretap45 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:35 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, 0x0, 0x0) dup(0xffffffffffffffff) [ 478.752005][T28066] batman_adv: batadv0: Not using interface gretap45 (retrying later): interface not active 22:41:35 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 478.811668][T28077] batman_adv: Cannot find parent device [ 478.840011][T28077] batman_adv: batadv0: Adding interface: gretap91 22:41:35 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) dup(0xffffffffffffffff) 22:41:35 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 478.881878][T28077] batman_adv: batadv0: The MTU of interface gretap91 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:36 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) dup(0xffffffffffffffff) 22:41:36 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 478.994620][T28077] batman_adv: batadv0: Not using interface gretap91 (retrying later): interface not active 22:41:36 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x0, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 479.051134][T28088] batman_adv: Cannot find parent device [ 479.080766][T28088] batman_adv: batadv0: Adding interface: gretap121 22:41:36 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:36 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0) dup(0xffffffffffffffff) [ 479.098208][T28088] batman_adv: batadv0: The MTU of interface gretap121 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:36 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB], 0x44}}, 0x0) [ 479.176531][T28088] batman_adv: batadv0: Not using interface gretap121 (retrying later): interface not active [ 479.230266][T28101] batman_adv: Cannot find parent device [ 479.250364][T28101] batman_adv: batadv0: Adding interface: gretap46 [ 479.288868][T28101] batman_adv: batadv0: The MTU of interface gretap46 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:36 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:36 executing program 0: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x0) 22:41:36 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) [ 479.474343][T28101] batman_adv: batadv0: Not using interface gretap46 (retrying later): interface not active 22:41:36 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x44}}, 0x0) dup(0xffffffffffffffff) 22:41:36 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x0, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 479.560917][T28115] batman_adv: Cannot find parent device [ 479.584322][T28115] batman_adv: batadv0: Adding interface: gretap92 22:41:36 executing program 1: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000002c0)) r5 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) [ 479.625957][T28115] batman_adv: batadv0: The MTU of interface gretap92 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:41:36 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00'}) r1 = socket$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}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x44}}, 0x0) dup(0xffffffffffffffff) [ 479.731452][T28115] batman_adv: batadv0: Not using interface gretap92 (retrying later): interface not active [ 479.763020][T28129] batman_adv: Cannot find parent device 22:41:36 executing program 2: perf_event_open(&(0x7f00000012c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1, @ANYBLOB='Y/}s'], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:36 executing program 3: connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB='\b\x00\n\x00', @ANYRES32=r1], 0x44}}, 0x0) dup(0xffffffffffffffff) [ 479.786973][T28129] batman_adv: batadv0: Adding interface: gretap122 [ 479.809312][T28129] batman_adv: batadv0: The MTU of interface gretap122 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 479.893007][T28129] batman_adv: batadv0: Not using interface gretap122 (retrying later): interface not active 22:41:37 executing program 5: setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x0, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB="592f7d7327130c9d"], 0x44}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) 22:41:37 executing program 4: socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, 0x0, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x380000, @ipv4}, 0x1c) perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x10000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x80002, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00', @ANYRES32, @ANYBLOB], 0x44}}, 0x0) [ 479.990825][T28142] batman_adv: Cannot find parent device 22:41:37 executing program 0: perf_event_open(&(0x7f00000012c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="440000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=r4, @ANYBLOB, @ANYRES32=r1], 0x44}}, 0x0) [ 480.054175][T28142] batman_adv: batadv0: Adding interface: gretap47 [ 480.084547][T28142] batman_adv: batadv0: The MTU of interface gretap47 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 480.169137][T28142] batman_adv: batadv0: Not using interface gretap47 (retrying later): interface not active [ 480.207791][ C0] ==================================================================