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") write$tun(r2, &(0x7f0000000080)=ANY=[@ANYBLOB="03000000000000000000480002240000000000069078ac141400ac1408bb0d00907800000000000000000000000000e000000bc7085e280282d3"], 0x100c) 02:20:56 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0xffff0300, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:20:56 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000c38000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 849.574156][T13616] batman_adv: Cannot find parent device [ 849.594680][T13616] batman_adv: batadv0: Adding interface: gretap708 [ 849.601633][T13616] batman_adv: batadv0: The MTU of interface gretap708 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. [ 849.661573][T13616] batman_adv: batadv0: Not using interface gretap708 (retrying later): interface not active 02:20:56 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0xffffa888, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:20:56 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xe00}, 0x0) 02:20:56 executing program 1: getsockname$packet(0xffffffffffffffff, &(0x7f00000002c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000280)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000680)=ANY=[@ANYBLOB="480000001000050700"/18, @ANYRES32=r0, @ANYBLOB="0000000000000000280012000c000100766574680000000018000200fd0001000000000023c0306554362dddcb892ef8051404bde5bf296e3c56e200d724f7ead1ef33adfdbe08b8c5236b93b9797b4409f6e370d1515d2e1fa63259e6d4bd05772981", @ANYRES32=0x0, @ANYBLOB="e371a01c7d83e16db1918b5328546fd0db633ad73f48121530e272e1e1c5c2d65138cf6c000062440000"], 0x5}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0xfffffffffffffdf6, &(0x7f0000000240)={&(0x7f00000000c0)=@newlink={0x28, 0x10, 0x825, 0x0, 0x0, {0x0, 0x0, 0x0, r0}, [@IFLA_PROTO_DOWN={0x8, 0xa, 0x14}]}, 0x28}}, 0x0) r1 = socket$inet6(0xa, 0x5, 0x0) close(r1) r2 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r2, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r1, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r1, r2, 0x0, 0x80001d00c0d0) bind$xdp(0xffffffffffffffff, &(0x7f0000000000)={0x2c, 0x6, r0, 0x23, r2}, 0x10) syz_emit_ethernet(0x3e, 0x0, 0x0) r3 = shmget$private(0x0, 0x1000, 0x0, &(0x7f0000ffd000/0x1000)=nil) shmat(r3, &(0x7f0000ffd000/0x1000)=nil, 0xd000) timer_create(0x0, 0x0, &(0x7f0000000240)) timer_settime(0x0, 0x0, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r4 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, 0x0, 0x0) sendmsg$IPSET_CMD_LIST(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB="1c0000000706010100000000000000000220634b3e8125e1137c00009a2b65d9008dccca4e07"], 0x1c}}, 0x0) ioctl$DRM_IOCTL_AGP_ALLOC(0xffffffffffffffff, 0xc0206434, &(0x7f0000000200)={0x8, 0x0, 0x10004, 0x9}) 02:20:56 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000040000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 849.986781][T13646] batman_adv: Cannot find parent device [ 850.000785][T13646] batman_adv: batadv0: Adding interface: gretap709 [ 850.012589][T13646] batman_adv: batadv0: The MTU of interface gretap709 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. [ 850.045276][T13666] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. [ 850.064980][T13646] batman_adv: batadv0: Not using interface gretap709 (retrying later): interface not active 02:20:56 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xb80b}}}}, 0x100c) 02:20:57 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xf00}, 0x0) 02:20:57 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000048000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:20:57 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0xffffff7f, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 850.298071][T13666] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. [ 850.330683][ T27] audit: type=1800 audit(1589682057.136:169): pid=13655 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.1" name="bus" dev="sda1" ino=16369 res=0 02:20:57 executing program 1: syz_emit_ethernet(0x3e, 0x0, 0x0) shmat(0x0, &(0x7f0000ffd000/0x1000)=nil, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) openat$ocfs2_control(0xffffffffffffff9c, &(0x7f0000000000)='/dev/ocfs2_control\x00', 0x400000, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x0, 0x2, 0x0, 0x400000}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9) r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, 0x0, 0x0) sendmsg$IPSET_CMD_LIST(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x1c, 0x7, 0x6, 0x101, 0x0, 0x0, {0x2}, [@IPSET_ATTR_PROTOCOL={0x5}]}, 0x1c}}, 0x0) [ 850.519857][T13684] batman_adv: Cannot find parent device [ 850.548376][T13684] batman_adv: batadv0: Adding interface: gretap710 [ 850.572558][T13684] batman_adv: batadv0: The MTU of interface gretap710 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. 02:20:57 executing program 1: syz_emit_ethernet(0x3e, 0x0, 0x0) shmat(0x0, &(0x7f0000ffd000/0x1000)=nil, 0x0) timer_create(0x0, 0x0, &(0x7f0000000240)) timer_settime(0x0, 0x0, 0x0, 0x0) uname(&(0x7f00000000c0)=""/152) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$nl_netfilter(0x10, 0x3, 0xc) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) getsockopt$inet_mreq(r1, 0x0, 0x23, &(0x7f0000000040)={@multicast1, @private}, &(0x7f0000000080)=0x8) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, 0x0, 0x0) sendmsg$IPSET_CMD_LIST(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c0000000406010100000000000000000200000005000100ced763bb6a4bf847bad500"], 0x1c}}, 0x0) [ 850.652653][T13684] batman_adv: batadv0: Not using interface gretap710 (retrying later): interface not active 02:20:57 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x3f00}, 0x0) 02:20:57 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0000004c000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:20:57 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0xffffff9e, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:20:57 executing program 1: syz_emit_ethernet(0x3e, 0x0, 0x0) shmat(0x0, &(0x7f0000ffd000/0x1000)=nil, 0x0) timer_create(0x0, 0x0, &(0x7f0000000240)) timer_settime(0x0, 0x0, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, 0x0, 0x0) [ 850.994762][T13718] batman_adv: Cannot find parent device 02:20:57 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000060000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 851.037516][T13718] batman_adv: batadv0: Adding interface: gretap711 02:20:57 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000}, 0x0) [ 851.084612][T13718] batman_adv: batadv0: The MTU of interface gretap711 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 851.219776][T13718] batman_adv: batadv0: Not using interface gretap711 (retrying later): interface not active 02:20:58 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe803}}}}, 0x100c) 02:20:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0xffffffc3, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:20:58 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x5865}, 0x0) 02:20:58 executing program 1: syz_emit_ethernet(0x3e, 0x0, 0x0) shmat(0x0, &(0x7f0000ffd000/0x1000)=nil, 0x0) timer_create(0x0, 0x0, &(0x7f0000000240)) timer_settime(0x0, 0x0, 0x0, 0x0) r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x2e) ioctl$CAPI_MANUFACTURER_CMD(r1, 0xc0104320, &(0x7f00000000c0)={0xbf75, &(0x7f0000000000)="af992ce9767496c746bd69037e5f5e740183225751970fed00f3f7ec2d1c540ef09ce4624da8cf11bdf545925de3696aebc506665683c39e047ec0b280ed9fda4b277e171b4ea5a8d70d4fa57bfba376a946afb08bcab343846c952b38fbc4c6cf701c6ab957d666a8112560d403764496115ac7a0f4d627648b4e1b3558632284f2ebd7274e0358c1efd47352621e4670a65127c1f72ba9d2f93fed13"}) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r2 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, 0x0, 0x0) sendmsg$IPSET_CMD_LIST(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x1c, 0x7, 0x6, 0x101, 0x0, 0x0, {0x2}, [@IPSET_ATTR_PROTOCOL={0x5}]}, 0x1c}}, 0x0) 02:20:58 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00005865000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:20:58 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(0xffffffffffffffff, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) connect$inet6(0xffffffffffffffff, &(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) r3 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r3, 0x1276, 0x0) r4 = bpf$BPF_BTF_GET_FD_BY_ID(0x13, &(0x7f0000004e00)=0xffffffffffffffff, 0x4) r5 = socket$inet6(0xa, 0x5, 0x0) close(r5) r6 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r6, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r5, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r5, r6, 0x0, 0x80001d00c0d0) sendmmsg$unix(0xffffffffffffffff, &(0x7f0000004ec0)=[{&(0x7f0000000080)=@abs={0x1, 0x0, 0x4e22}, 0x6e, &(0x7f00000001c0)=[{&(0x7f0000000280)="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0x1000}, {&(0x7f0000000100)="f196e0561f26301c3e8a0a6b205f1ce2656be556bfb089", 0x17}, {&(0x7f0000000180)="8c5b4135ae6304e42475ae92179b05514c", 0x11}, {&(0x7f0000001280)="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", 0xff}], 0x4, &(0x7f0000000200)=[@cred={{0x1c, 0x1, 0x2, {0x0, 0xee00}}}], 0x20, 0x4800}, {&(0x7f0000001380)=@file={0x1, './file0\x00'}, 0x6e, &(0x7f00000026c0)=[{&(0x7f0000001400)="2fb89030ed28df9ba220781170b6c1cdeef214b197a5befe61b8acabfaf2488a5802c92c83255326f1cd593ac2a9ff33858181a741a7562301e2c81aea8ca463eeb3ab3b88f1922cddb714f1f9016d02262ae6126480fdb268", 0x59}, {&(0x7f0000001480)="e1978d8446b0cfd27c5068139d309c8ffac8e07bc13b1dcc936a555dc325208a07998128ab9308ba0b42afb268bd4201e7227e1947fe614a5b08c0d80953ca1acf6626538a3164e131036bc34bc3af9b33c880cf3beb5cb8a9515facc4f68336201d3ff2513080edc1b469f59251f1bc0a4c8c041f3c21d063ebe618f865030e4025f03da67aef3dfc4eeb26246dd8eaa82d9ebf0d1678441796745091eb6e5e759b36b2", 0xa4}, {&(0x7f0000001540)="d4304e787d769f73aadb395f6f92449e5bab0f3c5d547acbfa5a155761e4f61fa3bbd4046794dbd8201c98eeb6361a15232749b4", 0x34}, 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0x1000}, {&(0x7f0000003b80)="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0x1000}, {&(0x7f0000004b80)="433c3f2b5e60bd24880df6695f10dc792e4f2847ea7f7b7c7d97b24faf5c86c7d48b12c8a0", 0x25}, {&(0x7f0000004bc0)="6b8a290f7d1820ccd10f3eb78c3a69d21123b31d45949396a9994ab0419a842c8119206f3eb37336163c6d5094bee8fbf8bc3bf0bbf20810ea8db3f871a86dd3f6b76a0fa486db1e93b38f45ad98d3acc749bb037a9e8de8828164b2cf08e134e1f139757339489884e6674a378ffe06b8a65d8559c81d253b95924321957b77e66f33ab43227e38bf4349724784283025e186ec02cb910e961a34f3476149800afaedaeb71c25e7db7cfcd110832021a1c30d7ebe8c3a2b4e5c3c71fa5d98862d6ce4b35746af1355a146dc305e1ae4ad29c729839e5e4737cf3fdb20741a1df5b44f63c2af3bddedca26a4ab", 0xed}, {&(0x7f0000004cc0)="65657d4fab6dfecc061826", 0xb}, {&(0x7f0000004d00)="688839b592bd7f7183d3934c5164413609f860374f960402e3900662dec392e999c1efcf90abad8b174ef97434970d789f33773c12a5c36ac5d54f6c2acf49f576b8", 0x42}], 0x8, &(0x7f0000004e40)=[@rights={{0x20, 0x1, 0x1, [0xffffffffffffffff, r1, r2, 0xffffffffffffffff]}}, @rights={{0x28, 0x1, 0x1, [0xffffffffffffffff, r3, r2, r4, r2, r6]}}], 0x48, 0x4000}], 0x3, 0x10004015) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r7 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r7, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) [ 851.519413][T13753] batman_adv: Cannot find parent device [ 851.555686][ T27] audit: type=1800 audit(1589682058.366:170): pid=13757 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.1" name="bus" dev="sda1" ino=15922 res=0 [ 851.583970][T13753] batman_adv: batadv0: Adding interface: gretap712 [ 851.627959][T13753] batman_adv: batadv0: The MTU of interface gretap712 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. 02:20:58 executing program 1: syz_emit_ethernet(0x3e, 0x0, 0x0) shmat(0x0, &(0x7f0000ffd000/0x1000)=nil, 0x0) timer_create(0x0, 0x0, &(0x7f0000000240)) timer_settime(0x0, 0x0, 0x0, 0x0) perf_event_open(&(0x7f00000000c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, @perf_config_ext={0x1000}, 0x0, 0x0, 0x0, 0x0, 0x4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, 0x0, 0x0) sendmsg$IPSET_CMD_LIST(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x1c, 0x7, 0x6, 0x101, 0x0, 0x0, {0x2}, [@IPSET_ATTR_PROTOCOL={0x5}]}, 0x1c}}, 0x0) r1 = openat$mice(0xffffffffffffff9c, &(0x7f0000000000)='/dev/input/mice\x00', 0x58500) ioctl$KVM_SET_GUEST_DEBUG(r1, 0x4048ae9b, &(0x7f0000000040)={0x80001, 0x0, [0x8001, 0x2, 0x1, 0x7, 0x6, 0x800, 0x400, 0x100000000]}) [ 851.741491][T13753] batman_adv: batadv0: Not using interface gretap712 (retrying later): interface not active 02:20:58 executing program 1: syz_emit_ethernet(0x3e, 0x0, 0x0) shmat(0x0, &(0x7f0000ffd000/0x1000)=nil, 0x0) timer_create(0x0, 0x0, &(0x7f0000000240)) timer_settime(0x0, 0x0, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, 0x0, 0x0) r1 = socket$inet6_sctp(0xa, 0x801, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r1, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) connect$inet6(r1, &(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) getsockname(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x0, 0xffffffffffffffff, {0x2, 0x0, @multicast1}}}, &(0x7f0000000080)=0x80) pwritev(r2, &(0x7f00000014c0)=[{&(0x7f00000000c0)="c3b927ddbd2bbbc0a25926ccc6518e382ecfe28ae7765497559d32a792533bfa2b2c58230b6bfb1720efddf902db34cf1ef6418dec2bea76a015f3f992cc137e82a76d23b14535ae644645340b6bf1faf6713d2ce9d5e2f097b450cd4b99", 0x5e}, {&(0x7f0000000140)="0ea0e81a238643c4a6c5d3a881e75427ab1efdb8d90bcb69c1d7de15963dfc9829e500d8be36fbc086597d1eed1c85a6f1318484f0a3accafc29730a723999bf972e97c32ab2fb1020579fae137ec519f1881c4188a4c5bcda4bbf7f150442c68b7f10b9350ff48abe809e73da910e0d2b3aedc13ec8e123dfb254b2f8e37e2a2a19fa13b159a81dba658c5d6e0bf2628c5dad745134916253abc4", 0x9b}, {&(0x7f0000000300)="9eb4f0bfc9823a2db5fa2a31ff07609164c5f7aa16e8e8c75e1a7272931384d7cab379f090914a13022d5f3847d8113cea8d37e23c19b10dfd9649580dae824b026ae1d4f88015c69ed150a9dfd317a3e72e770a7fed02dfb3a05eb39cf25c3c95c3a37bb12af6b94cde668d13b87e6a7355fe026b6d8124cfb3fbc6b9f3caf521019c0a1baa2079f7da5e2c66", 0x8d}, {&(0x7f00000003c0)="6b6a2a0954b55b66e2df60761448ec7ff1e1699f686ee97dfc25a7da80819b8d4acd6df41c65047b83c34fe9bc5a6a7b8e8cdcc1b860c4abe7f5968158062ed4bf318274510c524930f84a654fa628662b", 0x51}, {&(0x7f0000000440)="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", 0x1000}, {&(0x7f0000001440)="2bdc3e499c690f10e1e3585de5871fa7b43a6ae73b3c979a16e43acdce67b9432c11218537f08e88ae338c85c63d7352beb803df5638646996508dd9c44361dc7920e0", 0x43}], 0x6, 0x5) sendmsg$IPSET_CMD_LIST(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000001540)=ANY=[@ANYBLOB="1c000000000002000000e1ad4d29a3c64682c1470500010007000000"], 0x1c}}, 0x0) 02:20:58 executing program 1: syz_emit_ethernet(0x3e, 0x0, 0x0) shmat(0x0, &(0x7f0000ffd000/0x1000)=nil, 0x0) timer_create(0x0, 0x0, &(0x7f0000000240)) timer_settime(0x0, 0x0, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x1, 0x0, 0x0, 0x41c2, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0xc182, 0x0, 0xfffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, 0x0, 0x0) sendmsg$IPSET_CMD_LIST(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x1c, 0x7, 0x6, 0x101, 0x0, 0x0, {0x2}, [@IPSET_ATTR_PROTOCOL={0x5}]}, 0x1c}}, 0x0) 02:20:58 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000068000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:20:58 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x6000}, 0x0) 02:20:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0xffffffe4, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 852.249689][T13802] batman_adv: Cannot find parent device [ 852.278467][T13802] batman_adv: batadv0: Adding interface: gretap713 [ 852.300958][T13802] batman_adv: batadv0: The MTU of interface gretap713 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 852.395484][T13802] batman_adv: batadv0: Not using interface gretap713 (retrying later): interface not active 02:20:59 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf401}}}}, 0x100c) 02:20:59 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x6558}, 0x0) 02:20:59 executing program 1: syz_emit_ethernet(0x3e, 0x0, 0x0) shmat(0x0, &(0x7f0000ffd000/0x1000)=nil, 0x0) r0 = socket$inet6_sctp(0xa, 0x801, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r0, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) connect$inet6(r0, &(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) r1 = dup(r0) ioctl$USBDEVFS_GET_CAPABILITIES(r1, 0x8004551a, &(0x7f0000000040)) timer_create(0x0, 0x0, &(0x7f0000000240)) timer_settime(0x0, 0x0, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r2 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, 0x0, 0x0) r3 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r3, 0x1276, 0x0) sendmsg$IPSET_CMD_LIST(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES32=r3], 0x1c}}, 0x0) 02:20:59 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0000006c000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:20:59 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0xfffffff0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 852.782907][T13828] batman_adv: Cannot find parent device [ 852.818321][T13828] batman_adv: batadv0: Adding interface: gretap714 [ 852.853711][T13828] batman_adv: batadv0: The MTU of interface gretap714 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. [ 852.903739][T13828] batman_adv: batadv0: Not using interface gretap714 (retrying later): interface not active 02:20:59 executing program 1: syz_emit_ethernet(0x3e, 0x0, 0x0) r0 = shmat(0x0, &(0x7f0000ffd000/0x1000)=nil, 0x0) timer_create(0x0, 0x0, &(0x7f0000000240)) timer_settime(0x0, 0x0, 0x0, 0x0) shmdt(r0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, 0x0, 0x0) sendmsg$IPSET_CMD_LIST(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x1c, 0x7, 0x6, 0x101, 0x0, 0x0, {0x2}, [@IPSET_ATTR_PROTOCOL={0x5}]}, 0x1c}}, 0x0) 02:20:59 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8100}, 0x0) 02:20:59 executing program 1: socket$inet_tcp(0x2, 0x1, 0x0) r0 = socket$netlink(0x10, 0x3, 0x8000000004) writev(r0, &(0x7f00000000c0)=[{&(0x7f0000000300)="580000001400192340834b80040d8c560a067fbc45ff810500000000000058000b480400945f64009400050028925a01000000000000008000f0fffeffe809000000fff5dd000000080001000a081000418e00000004fcff", 0x58}], 0x1) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, 0x0, 0x100, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x800}, 0x0) r1 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000040)={'lo\x00', 0x1}) 02:21:00 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0xfffffffe, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:00 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000074000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:00 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20480}}}}, 0x100c) 02:21:00 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xc005}, 0x0) [ 853.340280][T13863] batman_adv: Cannot find parent device [ 853.378247][T13863] batman_adv: batadv0: Adding interface: gretap715 [ 853.403700][T13863] batman_adv: batadv0: The MTU of interface gretap715 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. [ 853.472433][T13863] batman_adv: batadv0: Not using interface gretap715 (retrying later): interface not active 02:21:00 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xc505}, 0x0) 02:21:00 executing program 1: r0 = add_key(&(0x7f0000000000)='dns_resolver\x00', 0x0, 0x0, 0x0, 0xfffffffffffffffd) r1 = add_key(0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff) r2 = add_key(0x0, &(0x7f0000000040)={'syz', 0x1}, 0x0, 0x0, 0xffffffffffffffff) keyctl$KEYCTL_PKEY_DECRYPT(0x1a, &(0x7f0000000100)={0x0, 0x67, 0xf}, 0x0, &(0x7f0000000380)="82dc64286a130878bf0006d271a5293540ba8f7e9007f6330a3f3d314bd21ad6d35b6f750eb3122d5aeafc58e3bd84298e4541b067c891fe33a86c059f118d802bf6b99ef00290d0feda6ddf3da84d6f557e0e45e15eebecdc85ceddcd468695cd28addb9327c8", &(0x7f0000000180)=""/15) keyctl$KEYCTL_RESTRICT_KEYRING(0x1d, r2, 0x0, 0xfffffffffffffffe) keyctl$instantiate(0xc, r0, 0x0, 0x0, r1) perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0x6a, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) recvmmsg(0xffffffffffffffff, &(0x7f000000b180)=[{{0x0, 0x0, &(0x7f0000002e00)=[{&(0x7f00000002c0)=""/163, 0xa3}], 0x1}}], 0x1, 0x0, 0x0) r3 = syz_open_procfs(0x0, &(0x7f0000000140)='net/ip6_tables_targets\x00') preadv(r3, &(0x7f00000017c0), 0x1d0, 0x0) 02:21:00 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0000007a000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:00 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0xffffffff, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:00 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xcd05}, 0x0) [ 853.918137][T13904] batman_adv: Cannot find parent device [ 853.940157][T13904] batman_adv: batadv0: Adding interface: gretap716 02:21:00 executing program 1: socket$inet6(0xa, 0x0, 0x0) prctl$PR_SET_PTRACER(0x59616d61, 0xffffffffffffffff) clone(0x802102001ffe, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = gettid() wait4(0x0, 0x0, 0x80000002, 0x0) ptrace$setopts(0x4206, r0, 0x0, 0x0) tkill(r0, 0x38) ptrace$cont(0x18, r0, 0x0, 0x0) ioctl$BLKTRACESETUP(0xffffffffffffffff, 0xc0481273, &(0x7f00000000c0)={[], 0x0, 0x0, 0x0, 0x10001, 0x5}) ptrace$setregs(0xd, r0, 0x0, &(0x7f0000000080)) ptrace$cont(0x9, r0, 0x0, 0x0) [ 853.956689][T13904] batman_adv: batadv0: The MTU of interface gretap716 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 854.025759][T13904] batman_adv: batadv0: Not using interface gretap716 (retrying later): interface not active 02:21:00 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xd705}, 0x0) 02:21:00 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40000}}}}, 0x100c) 02:21:00 executing program 1: prlimit64(0x0, 0xe, &(0x7f0000000280)={0x9, 0x8d}, 0x0) r0 = getpid() sched_setattr(r0, &(0x7f0000000040)={0x30, 0x2, 0x0, 0x0, 0x8}, 0x0) r1 = socket$inet6(0xa, 0x2, 0x0) recvmmsg(r1, &(0x7f0000006f40)=[{{&(0x7f00000005c0)=@nl, 0x80, &(0x7f00000002c0)}}, {{0x0, 0x0, &(0x7f00000019c0)=[{0x0}, {0x0}], 0x2}}, {{0x0, 0x0, &(0x7f0000003200)=[{&(0x7f0000002f00)=""/119, 0x77}], 0x1, &(0x7f0000003280)=""/13, 0xd}, 0x5}, {{&(0x7f00000032c0)=@hci, 0x80, &(0x7f0000003500)=[{0x0}, {&(0x7f0000003400)=""/249, 0xf9}], 0x2}}, {{0x0, 0x0, 0x0}}, {{&(0x7f0000005c00)=@vsock={0x28, 0x0, 0x0, @host}, 0x80, 0x0}, 0x4}], 0x6, 0x0, 0x0) pipe(&(0x7f0000000180)={0xffffffffffffffff, 0xffffffffffffffff}) fcntl$setpipe(r3, 0x407, 0x0) write(r3, &(0x7f0000000480)="b0a3cdef47f59ec515de0fcb5dfc761cf7120c4312b2054efdc0cf574f65329a05d03a24674b1d94d072b4bd702c576dc1d6e4fef97bdd899d359dadcfe32ba24fb1e152533e4df2c20324dda85d95c102000000d81d2b9bea7f9e468b3da19d62e9913b2f7cd488de25886811470818af91afd3bce1422670d6f2d054d8b16374e3617a22b1c70e7e3104b814e24e6e7b62256ae8faaae5f59f840c029418a34c", 0xffffff47) vmsplice(r2, &(0x7f0000000000)=[{&(0x7f0000000500), 0x3528a9c0}], 0x1, 0x0) sched_setattr(0x0, &(0x7f0000000080)={0x30, 0x2, 0x0, 0x0, 0x3}, 0x0) mkdir(&(0x7f0000000340)='\x13\x13w\xc5\xfc5\xd4\x14T\xd5\xd4\x1d)\xad\x1a`)Y\x81F\xe6\xbe\x16nA\xad\r\xbd@T\x03<\x9f3\xbb\xda\x82$\xa2\xf3\xd7r\xe7cnH\xb3<\xbfp\x83r\xe8\xf1\xb9\x93>\xc5\x12wC\xbe\"\x06 \x9e\xf0-\xf9\xcb\xf2\xf6\xe8\x80\xd38/\x00', 0x0) symlink(&(0x7f0000000140)='\x13\x13w\xc5\xfc5\xd4\x14T\xd5\xd4\x1d)\xad\x1a`)Y\x81F\xe6\xbe\x16nA\xad\r\xbd@T\x03<\x9f3\xbb\xda\x82$\xa2\xf3\xd7r\xe7cnH\xb3<\xbfp\x83r\xe8\xf1\xb9\x93>\xc5\x12wC\xbe\"\x06 \x9e\xf0-\xf9\xcb\xf2\xf6\xe8\x80\xd38//../file0\x00', &(0x7f00000003c0)='\x13\x13w\xc5\xfc5\xd4\x14T\xd5\xd4\x1d)\xad\x1a`)Y\x81F\xe6\xbe\x16nA\xad\r\xbd@T\x03<\x9f3\xbb\xda\x82$\xa2\xf3\xd7r\xe7cnH\xb3<\xbfp\x83r\xe8\xf1\xb9\x93>\xc5\x12wC\xbe\"\x06 \x9e\xf0-\xf9\xcb\xf2\xf6\xe8\x80\xd38//../file0\x00') r4 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sync_file_range(r4, 0x8, 0x0, 0x4) truncate(&(0x7f0000000100)='./file0\x00', 0x0) unlink(&(0x7f0000000040)='./file0\x00') open(&(0x7f00000000c0)='./file0\x00', 0x3fd, 0x0) 02:21:01 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000081000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:01 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 854.432984][T13934] batman_adv: Cannot find parent device [ 854.474888][T13934] batman_adv: batadv0: Adding interface: gretap717 02:21:01 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xf305}, 0x0) [ 854.502411][T13934] batman_adv: batadv0: The MTU of interface gretap717 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. [ 854.588315][T13934] batman_adv: batadv0: Not using interface gretap717 (retrying later): interface not active 02:21:01 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x2, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:01 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xf505}, 0x0) 02:21:01 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="ffffa888000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 854.862111][T13962] batman_adv: Cannot find parent device [ 854.909151][T13962] batman_adv: batadv0: Adding interface: gretap718 [ 854.938905][T13962] batman_adv: batadv0: The MTU of interface gretap718 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 855.030262][T13962] batman_adv: batadv0: Not using interface gretap718 (retrying later): interface not active 02:21:01 executing program 1: prlimit64(0x0, 0xe, &(0x7f0000000280)={0x9, 0x8d}, 0x0) r0 = getpid() sched_setattr(r0, &(0x7f0000000040)={0x30, 0x2, 0x0, 0x0, 0x8}, 0x0) r1 = socket$inet6(0xa, 0x2, 0x0) recvmmsg(r1, &(0x7f0000006f40)=[{{&(0x7f00000005c0)=@nl, 0x80, &(0x7f00000002c0)}}, {{0x0, 0x0, &(0x7f00000019c0)=[{0x0}, {0x0}], 0x2}}, {{0x0, 0x0, &(0x7f0000003200)=[{&(0x7f0000002f00)=""/119, 0x77}], 0x1, &(0x7f0000003280)=""/13, 0xd}, 0x5}, {{&(0x7f00000032c0)=@hci, 0x80, &(0x7f0000003500)=[{0x0}, {&(0x7f0000003400)=""/249, 0xf9}], 0x2}}, {{0x0, 0x0, 0x0}}, {{&(0x7f0000005c00)=@vsock={0x28, 0x0, 0x0, @host}, 0x80, 0x0}, 0x4}], 0x6, 0x0, 0x0) pipe(&(0x7f0000000180)={0xffffffffffffffff, 0xffffffffffffffff}) fcntl$setpipe(r3, 0x407, 0x0) write(r3, &(0x7f0000000480)="b0a3cdef47f59ec515de0fcb5dfc761cf7120c4312b2054efdc0cf574f65329a05d03a24674b1d94d072b4bd702c576dc1d6e4fef97bdd899d359dadcfe32ba24fb1e152533e4df2c20324dda85d95c102000000d81d2b9bea7f9e468b3da19d62e9913b2f7cd488de25886811470818af91afd3bce1422670d6f2d054d8b16374e3617a22b1c70e7e3104b814e24e6e7b62256ae8faaae5f59f840c029418a34c", 0xffffff47) vmsplice(r2, &(0x7f0000000000)=[{&(0x7f0000000500), 0x3528a9c0}], 0x1, 0x0) sched_setattr(0x0, &(0x7f0000000080)={0x30, 0x2, 0x0, 0x0, 0x3}, 0x0) mkdir(&(0x7f0000000340)='\x13\x13w\xc5\xfc5\xd4\x14T\xd5\xd4\x1d)\xad\x1a`)Y\x81F\xe6\xbe\x16nA\xad\r\xbd@T\x03<\x9f3\xbb\xda\x82$\xa2\xf3\xd7r\xe7cnH\xb3<\xbfp\x83r\xe8\xf1\xb9\x93>\xc5\x12wC\xbe\"\x06 \x9e\xf0-\xf9\xcb\xf2\xf6\xe8\x80\xd38/\x00', 0x0) symlink(&(0x7f0000000140)='\x13\x13w\xc5\xfc5\xd4\x14T\xd5\xd4\x1d)\xad\x1a`)Y\x81F\xe6\xbe\x16nA\xad\r\xbd@T\x03<\x9f3\xbb\xda\x82$\xa2\xf3\xd7r\xe7cnH\xb3<\xbfp\x83r\xe8\xf1\xb9\x93>\xc5\x12wC\xbe\"\x06 \x9e\xf0-\xf9\xcb\xf2\xf6\xe8\x80\xd38//../file0\x00', &(0x7f00000003c0)='\x13\x13w\xc5\xfc5\xd4\x14T\xd5\xd4\x1d)\xad\x1a`)Y\x81F\xe6\xbe\x16nA\xad\r\xbd@T\x03<\x9f3\xbb\xda\x82$\xa2\xf3\xd7r\xe7cnH\xb3<\xbfp\x83r\xe8\xf1\xb9\x93>\xc5\x12wC\xbe\"\x06 \x9e\xf0-\xf9\xcb\xf2\xf6\xe8\x80\xd38//../file0\x00') r4 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sync_file_range(r4, 0x8, 0x0, 0x4) truncate(&(0x7f0000000100)='./file0\x00', 0x0) unlink(&(0x7f0000000040)='./file0\x00') open(&(0x7f00000000c0)='./file0\x00', 0x3fd, 0x0) 02:21:02 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000000}}}}, 0x100c) 02:21:02 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="ffffff9e000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:02 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xf705}, 0x0) 02:21:02 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 855.312915][T13986] batman_adv: Cannot find parent device [ 855.350166][T13986] batman_adv: batadv0: Adding interface: gretap719 [ 855.390056][T13986] batman_adv: batadv0: The MTU of interface gretap719 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. [ 855.491337][T13986] batman_adv: batadv0: Not using interface gretap719 (retrying later): interface not active 02:21:02 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x4, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:02 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xfeff}, 0x0) 02:21:02 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="ffffffc3000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 855.941492][T14017] batman_adv: Cannot find parent device [ 855.962655][T14017] batman_adv: batadv0: Adding interface: gretap720 [ 855.984995][T14017] batman_adv: batadv0: The MTU of interface gretap720 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:21:02 executing program 1: r0 = add_key(0x0, &(0x7f0000000040)={'syz', 0x1}, 0x0, 0x0, 0xffffffffffffffff) keyctl$KEYCTL_PKEY_DECRYPT(0x1a, 0x0, 0x0, &(0x7f0000000380), 0x0) keyctl$KEYCTL_RESTRICT_KEYRING(0x1d, r0, 0x0, 0xfffffffffffffffe) keyctl$instantiate(0xc, 0x0, 0x0, 0x0, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) recvmmsg(0xffffffffffffffff, &(0x7f000000b180)=[{{0x0, 0x0, &(0x7f0000002e00)=[{&(0x7f00000002c0)=""/163, 0xa3}], 0x1}}], 0x1, 0x0, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000140)='net/ip6_tables_targets\x00') preadv(r1, &(0x7f00000017c0), 0x1d0, 0x0) [ 856.077811][T14017] batman_adv: batadv0: Not using interface gretap720 (retrying later): interface not active 02:21:03 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x5, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:03 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000003c4000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:03 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xff0f}, 0x0) 02:21:03 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2000000}}}}, 0x100c) 02:21:03 executing program 1: r0 = add_key(0x0, &(0x7f0000000040)={'syz', 0x1}, 0x0, 0x0, 0xffffffffffffffff) keyctl$KEYCTL_PKEY_DECRYPT(0x1a, 0x0, 0x0, &(0x7f0000000380), 0x0) keyctl$KEYCTL_RESTRICT_KEYRING(0x1d, r0, 0x0, 0xfffffffffffffffe) keyctl$instantiate(0xc, 0x0, 0x0, 0x0, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) recvmmsg(0xffffffffffffffff, &(0x7f000000b180)=[{{0x0, 0x0, &(0x7f0000002e00)=[{&(0x7f00000002c0)=""/163, 0xa3}], 0x1}}], 0x1, 0x0, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000140)='net/ip6_tables_targets\x00') preadv(r1, &(0x7f00000017c0), 0x1d0, 0x0) [ 856.398471][T14045] batman_adv: Cannot find parent device [ 856.435354][T14045] batman_adv: batadv0: Adding interface: gretap721 [ 856.457852][T14045] batman_adv: batadv0: The MTU of interface gretap721 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 856.599263][T14045] batman_adv: batadv0: Not using interface gretap721 (retrying later): interface not active 02:21:03 executing program 1: perf_event_open(&(0x7f0000000000)={0x1000000002, 0x70, 0x92, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = fcntl$dupfd(r1, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) shmget(0x0, 0x1000, 0x0, &(0x7f0000ffa000/0x1000)=nil) shmctl$IPC_RMID(0x0, 0x0) socket$inet(0x2, 0x4000000000000001, 0x0) r3 = syz_open_procfs(0x0, &(0x7f0000000200)='cgroup\x00') clone(0x0, 0x0, 0x0, 0x0, 0x0) preadv(r3, &(0x7f0000000500), 0x37d, 0x0) 02:21:03 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xfffe}, 0x0) 02:21:03 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0003fdec000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:03 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x6, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:03 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3000000}}}}, 0x100c) 02:21:03 executing program 1: perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0x0, 0x1, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x4}}, 0x0, 0xffffffffffffffbf, 0xffffffffffffffff, 0x0) r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000000)='/dev/ashmem\x00', 0x0, 0x0) ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xfffffffe) ioctl$KDGKBTYPE(0xffffffffffffffff, 0x4b33, 0x0) preadv(0xffffffffffffffff, &(0x7f0000000180), 0x0, 0x0) perf_event_open(&(0x7f0000000480)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = socket$alg(0x26, 0x5, 0x0) prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000004e00)={&(0x7f0000ff4000/0x4000)=nil, &(0x7f0000ff4000/0x1000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff6000/0x2000)=nil, &(0x7f0000ff4000/0x2000)=nil, &(0x7f0000ffb000/0x1000)=nil, &(0x7f0000ff6000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, &(0x7f0000ffc000/0x1000)=nil, 0x0, 0x0, r1}, 0x68) clone(0x20002004ffc, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) exit_group(0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000080)='maps\x00') preadv(r2, &(0x7f00000017c0), 0x3a8, 0x0) dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) write$P9_RLCREATE(0xffffffffffffffff, 0x0, 0x0) ioprio_get$uid(0x0, 0x0) 02:21:03 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x34000}, 0x0) [ 857.088507][T14085] batman_adv: Cannot find parent device [ 857.125441][T14085] batman_adv: batadv0: Adding interface: gretap722 [ 857.155370][T14085] batman_adv: batadv0: The MTU of interface gretap722 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. [ 857.232401][T14085] batman_adv: batadv0: Not using interface gretap722 (retrying later): interface not active 02:21:04 executing program 1: perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0x0, 0x1, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x4}}, 0x0, 0xffffffffffffffbf, 0xffffffffffffffff, 0x0) r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000000)='/dev/ashmem\x00', 0x0, 0x0) ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xfffffffe) ioctl$KDGKBTYPE(0xffffffffffffffff, 0x4b33, 0x0) preadv(0xffffffffffffffff, &(0x7f0000000180), 0x0, 0x0) perf_event_open(&(0x7f0000000480)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = socket$alg(0x26, 0x5, 0x0) prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000004e00)={&(0x7f0000ff4000/0x4000)=nil, &(0x7f0000ff4000/0x1000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff6000/0x2000)=nil, &(0x7f0000ff4000/0x2000)=nil, &(0x7f0000ffb000/0x1000)=nil, &(0x7f0000ff6000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, &(0x7f0000ffc000/0x1000)=nil, 0x0, 0x0, r1}, 0x68) clone(0x20002004ffc, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) exit_group(0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000080)='maps\x00') preadv(r2, &(0x7f00000017c0), 0x3a8, 0x0) dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) write$P9_RLCREATE(0xffffffffffffffff, 0x0, 0x0) ioprio_get$uid(0x0, 0x0) 02:21:04 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x7, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:04 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="fffffff0000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:04 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x400300}, 0x0) [ 857.787959][T14120] batman_adv: Cannot find parent device [ 857.822181][T14120] batman_adv: batadv0: Adding interface: gretap723 02:21:04 executing program 1: perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0x0, 0x1, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x4}}, 0x0, 0xffffffffffffffbf, 0xffffffffffffffff, 0x0) r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000000)='/dev/ashmem\x00', 0x0, 0x0) ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xfffffffe) ioctl$KDGKBTYPE(0xffffffffffffffff, 0x4b33, 0x0) preadv(0xffffffffffffffff, &(0x7f0000000180), 0x0, 0x0) perf_event_open(&(0x7f0000000480)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = socket$alg(0x26, 0x5, 0x0) prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000004e00)={&(0x7f0000ff4000/0x4000)=nil, &(0x7f0000ff4000/0x1000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff6000/0x2000)=nil, &(0x7f0000ff4000/0x2000)=nil, &(0x7f0000ffb000/0x1000)=nil, &(0x7f0000ff6000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, &(0x7f0000ffc000/0x1000)=nil, 0x0, 0x0, r1}, 0x68) clone(0x20002004ffc, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) exit_group(0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000080)='maps\x00') preadv(r2, &(0x7f00000017c0), 0x3a8, 0x0) dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) write$P9_RLCREATE(0xffffffffffffffff, 0x0, 0x0) ioprio_get$uid(0x0, 0x0) [ 857.845098][T14120] batman_adv: batadv0: The MTU of interface gretap723 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 857.928883][T14120] batman_adv: batadv0: Not using interface gretap723 (retrying later): interface not active 02:21:04 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000}}}}, 0x100c) 02:21:04 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x8, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:04 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x1000000}, 0x0) 02:21:04 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="fffffffc000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:05 executing program 1: r0 = socket$inet_udplite(0x2, 0x2, 0x88) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r2, &(0x7f0000001080)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000540)=ANY=[@ANYBLOB="5c000000020601030000000000000000000000000d000300686173683a6e65740000000005000400000000000900020073797a31000000001400078008000840000000000800124000200000050005000a0000000500010007"], 0x5c}}, 0x0) [ 858.377325][T14150] batman_adv: Cannot find parent device [ 858.417743][T14150] batman_adv: batadv0: Adding interface: gretap724 [ 858.438572][T14150] batman_adv: batadv0: The MTU of interface gretap724 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 858.515344][T14150] batman_adv: batadv0: Not using interface gretap724 (retrying later): interface not active 02:21:05 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x2000000}, 0x0) 02:21:05 executing program 1: r0 = memfd_create(&(0x7f00000003c0)='eo\xb1K\xfb\xf1\xb9\x9d*\x1dQ.\xf0c\xb5\x8e0\x98X\xc0\x04\xf8\x15\xb8\xf6\x0e\xa41\xbc!\b\xf7{\xeb\xdf\x06#\xee\xc7A\x19\xca\x83\xf5o\xbe\'\xebW\xf3Mik\xbb,;?,\x15\x8d\x1d\x91\xc3YL\xb8\bn\xdd\xab?\f\xd3?\x89\xf63\x1ap\xfd\xe5aU\xd6[\tc\x82\x16ej\xc3@n\x00\xc0+\x01\x00R\xb6i(\xd1?D\x02\xde[)g\x88N\x9d\xe3\x1e\x8a\x1e\xffU\x83\x99\x90\x8f\xba:6\x83\x1b\x95WCm\xbf\xfeU\x11\x15\xffk\x98\x86\xf3*\x83', 0x0) write(r0, &(0x7f0000000040)="06", 0x1) mmap(&(0x7f0000000000/0x7000)=nil, 0x7000, 0x80000000004, 0x11, r0, 0x0) r1 = socket$inet_dccp(0x2, 0x6, 0x0) getsockopt$inet_int(r1, 0x10d, 0xb, 0x0, &(0x7f0000000000)) 02:21:05 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="fffffffe000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:05 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x9, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:05 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6000000}}}}, 0x100c) 02:21:05 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x3000000}, 0x0) [ 858.845467][T14185] batman_adv: Cannot find parent device 02:21:05 executing program 1: r0 = syz_open_dev$video(&(0x7f0000000080)='/dev/video#\x00', 0x8447, 0x0) r1 = socket$inet_udplite(0x2, 0x2, 0x88) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$VIDIOC_SUBDEV_S_EDID(r0, 0xc0285629, &(0x7f0000000040)={0x3, 0x21, 0x33, [], &(0x7f00000000c0)}) [ 858.889103][T14185] batman_adv: batadv0: Adding interface: gretap725 [ 858.930987][T14185] batman_adv: batadv0: The MTU of interface gretap725 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 859.026367][T14185] batman_adv: batadv0: Not using interface gretap725 (retrying later): interface not active 02:21:05 executing program 1: r0 = socket$inet6(0xa, 0x80003, 0x7) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x0, @empty}, 0x1c) setsockopt$sock_int(r0, 0x1, 0x23, &(0x7f0000000000)=0x1000, 0x4) sendmmsg(r0, &(0x7f00000092c0), 0x3fffffffffffe9f, 0x0) recvmmsg(r0, &(0x7f00000010c0)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0, 0x0) 02:21:06 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) 02:21:06 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xa, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:06 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="88a8ffff000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:06 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7000000}}}}, 0x100c) [ 859.494276][T14227] batman_adv: Cannot find parent device [ 859.543015][T14227] batman_adv: batadv0: Adding interface: gretap726 [ 859.578727][T14227] batman_adv: batadv0: The MTU of interface gretap726 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. [ 859.625176][T14227] batman_adv: batadv0: Not using interface gretap726 (retrying later): interface not active 02:21:06 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x5000000}, 0x0) 02:21:06 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xc, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:06 executing program 1: r0 = syz_open_dev$video(&(0x7f0000000080)='/dev/video#\x00', 0x8447, 0x0) ioctl$VIDIOC_SUBDEV_S_EDID(r0, 0xc0285629, &(0x7f0000000040)={0x3, 0x0, 0x2}) 02:21:06 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="7fffffff000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:06 executing program 1: r0 = syz_open_dev$video(&(0x7f0000000080)='/dev/video#\x00', 0x8447, 0x0) ioctl$VIDIOC_SUBDEV_S_EDID(r0, 0xc0285629, &(0x7f0000000040)={0x3, 0x0, 0x2}) [ 859.907832][T14249] batman_adv: Cannot find parent device [ 859.936075][T14249] batman_adv: batadv0: Adding interface: gretap727 [ 859.963440][T14249] batman_adv: batadv0: The MTU of interface gretap727 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 860.029094][T14249] batman_adv: batadv0: Not using interface gretap727 (retrying later): interface not active 02:21:07 executing program 1: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) bind$inet(r0, &(0x7f000099e000)={0x2, 0x4e20, @multicast1}, 0x10) sendto$inet(r0, &(0x7f0000000140), 0xffffffffffffff58, 0x20008005, &(0x7f0000000100)={0x2, 0x4e20}, 0x10) r3 = gettid() ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000080)=r3) prctl$PR_SET_SECCOMP(0x16, 0x1, 0x0) recvfrom(r0, 0x0, 0x0, 0x0, 0x0, 0x0) 02:21:07 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8000000}}}}, 0x100c) 02:21:07 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x6000000}, 0x0) 02:21:07 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xe, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:07 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="9effffff000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 860.309328][ T27] audit: type=1326 audit(1589682067.117:171): auid=0 uid=0 gid=0 ses=4 subj==unconfined pid=14275 comm="syz-executor.1" exe="/root/syz-executor.1" sig=9 arch=c000003e syscall=228 compat=0 ip=0x45f86a code=0x0 [ 860.510249][T14284] batman_adv: Cannot find parent device [ 860.555213][T14284] batman_adv: batadv0: Adding interface: gretap728 [ 860.581523][T14284] batman_adv: batadv0: The MTU of interface gretap728 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 860.662471][T14284] batman_adv: batadv0: Not using interface gretap728 (retrying later): interface not active 02:21:07 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x10, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:07 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x7000000}, 0x0) 02:21:07 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="c3ffffff000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 860.939188][T14306] batman_adv: Cannot find parent device 02:21:07 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xa000000}, 0x0) [ 860.984931][T14306] batman_adv: batadv0: Adding interface: gretap729 [ 861.020108][T14306] batman_adv: batadv0: The MTU of interface gretap729 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. [ 861.094042][T14306] batman_adv: batadv0: Not using interface gretap729 (retrying later): interface not active [ 861.108837][ T27] audit: type=1326 audit(1589682067.917:172): auid=0 uid=0 gid=0 ses=4 subj==unconfined pid=14275 comm="syz-executor.1" exe="/root/syz-executor.1" sig=9 arch=c000003e syscall=228 compat=0 ip=0x45f86a code=0x0 02:21:08 executing program 1: 02:21:08 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9000000}}}}, 0x100c) 02:21:08 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x12, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:08 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xc000000}, 0x0) 02:21:08 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="f0ffffff000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:08 executing program 1: [ 861.577774][T14340] batman_adv: Cannot find parent device [ 861.607062][T14340] batman_adv: batadv0: Adding interface: gretap730 02:21:08 executing program 1: [ 861.630130][T14340] batman_adv: batadv0: The MTU of interface gretap730 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. [ 861.718204][T14340] batman_adv: batadv0: Not using interface gretap730 (retrying later): interface not active 02:21:08 executing program 1: 02:21:08 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xd060000}, 0x0) 02:21:08 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3c, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:08 executing program 1: [ 862.011270][T14363] batman_adv: Cannot find parent device 02:21:08 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="fcffffff000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 862.054458][T14363] batman_adv: batadv0: Adding interface: gretap731 02:21:08 executing program 1: [ 862.083358][T14363] batman_adv: batadv0: The MTU of interface gretap731 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 862.182594][T14363] batman_adv: batadv0: Not using interface gretap731 (retrying later): interface not active 02:21:09 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}}}}, 0x100c) 02:21:09 executing program 1: 02:21:09 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xe000000}, 0x0) 02:21:09 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x48, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:09 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="feffffff000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:09 executing program 1: 02:21:09 executing program 1: [ 862.628190][T14392] batman_adv: Cannot find parent device [ 862.661394][T14392] batman_adv: batadv0: Adding interface: gretap732 [ 862.686211][T14392] batman_adv: batadv0: The MTU of interface gretap732 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:21:09 executing program 1: [ 862.763744][T14392] batman_adv: batadv0: Not using interface gretap732 (retrying later): interface not active 02:21:09 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xf000000}, 0x0) 02:21:09 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x4a, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:09 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000013c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:09 executing program 1: [ 863.063385][T14422] batman_adv: Cannot find parent device [ 863.079103][T14422] batman_adv: batadv0: Adding interface: gretap733 [ 863.097133][T14422] batman_adv: batadv0: The MTU of interface gretap733 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. [ 863.139651][T14422] batman_adv: batadv0: Not using interface gretap733 (retrying later): interface not active 02:21:10 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe000000}}}}, 0x100c) 02:21:10 executing program 1: 02:21:10 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000023c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:10 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x10000000}, 0x0) 02:21:10 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x4c, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:10 executing program 1: 02:21:10 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x3f000000}, 0x0) 02:21:10 executing program 1: [ 863.513916][T14446] batman_adv: Cannot find parent device [ 863.540241][T14446] batman_adv: batadv0: Adding interface: gretap734 [ 863.566518][T14446] batman_adv: batadv0: The MTU of interface gretap734 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. [ 863.626621][T14446] batman_adv: batadv0: Not using interface gretap734 (retrying later): interface not active 02:21:10 executing program 1: 02:21:10 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x40000000}, 0x0) 02:21:10 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000033c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:10 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x60, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 863.922028][T14473] batman_adv: Cannot find parent device [ 863.979540][T14473] batman_adv: batadv0: Adding interface: gretap735 [ 864.006806][T14473] batman_adv: batadv0: The MTU of interface gretap735 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 864.107410][T14473] batman_adv: batadv0: Not using interface gretap735 (retrying later): interface not active 02:21:11 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10000000}}}}, 0x100c) 02:21:11 executing program 1: 02:21:11 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000043c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:11 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x68, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:11 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x60000000}, 0x0) 02:21:11 executing program 1: [ 864.459372][T14496] batman_adv: Cannot find parent device [ 864.496837][T14496] batman_adv: batadv0: Adding interface: gretap736 [ 864.511492][T14496] batman_adv: batadv0: The MTU of interface gretap736 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:21:11 executing program 1: [ 864.580667][T14496] batman_adv: batadv0: Not using interface gretap736 (retrying later): interface not active 02:21:11 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x65580000}, 0x0) 02:21:11 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x6c, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:11 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000053c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:11 executing program 1: [ 864.876822][T14520] batman_adv: Cannot find parent device [ 864.900947][T14520] batman_adv: batadv0: Adding interface: gretap737 [ 864.924527][T14520] batman_adv: batadv0: The MTU of interface gretap737 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. 02:21:11 executing program 1: [ 865.001391][T14520] batman_adv: batadv0: Not using interface gretap737 (retrying later): interface not active 02:21:11 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x11000000}}}}, 0x100c) 02:21:11 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x81000000}, 0x0) 02:21:12 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000063c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:12 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x74, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:12 executing program 1: 02:21:12 executing program 1: [ 865.465254][T14551] batman_adv: Cannot find parent device [ 865.486180][T14551] batman_adv: batadv0: Adding interface: gretap738 [ 865.501521][T14551] batman_adv: batadv0: The MTU of interface gretap738 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. 02:21:12 executing program 1: [ 865.593154][T14551] batman_adv: batadv0: Not using interface gretap738 (retrying later): interface not active 02:21:12 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x88a8ffff}, 0x0) 02:21:12 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000073c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:12 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x7a, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:12 executing program 1: 02:21:12 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x9effffff}, 0x0) 02:21:12 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1f000000}}}}, 0x100c) [ 866.005850][T14585] batman_adv: Cannot find parent device 02:21:12 executing program 1: [ 866.050440][T14585] batman_adv: batadv0: Adding interface: gretap739 [ 866.095295][T14585] batman_adv: batadv0: The MTU of interface gretap739 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. 02:21:13 executing program 1: [ 866.218489][T14585] batman_adv: batadv0: Not using interface gretap739 (retrying later): interface not active 02:21:13 executing program 1: 02:21:13 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xd6, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:13 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20000000}}}}, 0x100c) 02:21:13 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000000a3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:13 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xc0050000}, 0x0) 02:21:13 executing program 1: [ 866.644925][T14616] batman_adv: Cannot find parent device [ 866.678667][T14616] batman_adv: batadv0: Adding interface: gretap740 [ 866.719629][T14616] batman_adv: batadv0: The MTU of interface gretap740 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. 02:21:13 executing program 1: [ 866.810719][T14616] batman_adv: batadv0: Not using interface gretap740 (retrying later): interface not active 02:21:13 executing program 1: 02:21:13 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x18d, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:13 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xc5050000}, 0x0) 02:21:13 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000000c3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:13 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x8010000000000084) bind$inet6(r0, &(0x7f0000ef8cfd)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) listen(r0, 0x7) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) r2 = accept4(r0, 0x0, 0x0, 0x0) setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX_OLD(r1, 0x84, 0x6b, &(0x7f000055bfe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) syz_genetlink_get_family_id$batadv(&(0x7f0000000200)='batadv\x00') sendmsg$BATADV_CMD_GET_MESH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000340)=ANY=[], 0x14}}, 0x0) socket$inet6_sctp(0xa, 0x0, 0x84) getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x1d, 0x0, 0x0) close(r2) 02:21:13 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40000000}}}}, 0x100c) [ 867.165311][T14647] batman_adv: Cannot find parent device [ 867.198613][T14647] batman_adv: batadv0: Adding interface: gretap741 [ 867.229402][T14647] batman_adv: batadv0: The MTU of interface gretap741 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. [ 867.309673][T14647] batman_adv: batadv0: Not using interface gretap741 (retrying later): interface not active 02:21:14 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xcd050000}, 0x0) 02:21:14 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1b4, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:14 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000000e3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:14 executing program 1: perf_event_open(&(0x7f0000000480)={0x2, 0x70, 0x42, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(0xffffffffffffffff, 0x4020ae46, 0x0) perf_event_open(&(0x7f00000001c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x400, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x1008, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) pipe(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = syz_open_procfs(0x0, &(0x7f0000000180)='net/nf_conntrack_expect\x00') sendfile(r0, r1, 0x0, 0x320f) [ 867.639331][T14685] batman_adv: Cannot find parent device [ 867.682573][T14685] batman_adv: batadv0: Adding interface: gretap742 [ 867.712466][T14685] batman_adv: batadv0: The MTU of interface gretap742 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 867.790013][T14685] batman_adv: batadv0: Not using interface gretap742 (retrying later): interface not active 02:21:14 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40020000}}}}, 0x100c) 02:21:14 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xd7050000}, 0x0) 02:21:14 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000300)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sysfs$2(0x2, 0x0, &(0x7f00000000c0)=""/88) 02:21:14 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x21a, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:14 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000000f3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:15 executing program 1: sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0) r0 = getpid() sched_setscheduler(r0, 0x5, &(0x7f00000001c0)) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x83, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xfbffffffffffffff, 0xffffffffffffffff, 0x0) r1 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000)='/dev/kvm\x00', 0x0, 0x0) r2 = ioctl$KVM_CREATE_VM(r1, 0xae01, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000000000/0x18000)=nil, &(0x7f00000000c0)=[@textreal={0x8, &(0x7f0000000080)="baa10000eef36cba2100ec66b9800000c00f326635001000000f30bad104ecc80080d267d9f8f30f1bb429000f20c06635200000000f22c067f3af", 0x3b}], 0x1, 0x0, 0x0, 0x0) bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000300)={&(0x7f0000000140)=ANY=[@ANYBLOB="9feb0100182e07"], 0x0, 0x1b}, 0x20) r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0) perf_event_open(&(0x7f0000000040)={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_config_ext={0x2}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r2, 0x4020ae46, &(0x7f0000bf7000)={0x0, 0x0, 0x0, 0x1000, &(0x7f0000000000/0x1000)=nil}) ioctl$KVM_SET_REGS(r3, 0x4090ae82, &(0x7f0000000200)={[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xff], 0x1f000}) ioctl$KVM_RUN(r3, 0xae80, 0x0) [ 868.281804][T14719] batman_adv: Cannot find parent device [ 868.325577][T14719] batman_adv: batadv0: Adding interface: gretap743 [ 868.362345][T14719] batman_adv: batadv0: The MTU of interface gretap743 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 868.471171][T14719] batman_adv: batadv0: Not using interface gretap743 (retrying later): interface not active 02:21:15 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xf0ffffff}, 0x0) 02:21:15 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000103c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:15 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x2ac, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 868.860443][T14748] batman_adv: Cannot find parent device [ 868.886704][T14748] batman_adv: batadv0: Adding interface: gretap744 02:21:15 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xf3050000}, 0x0) [ 868.902617][T14748] batman_adv: batadv0: The MTU of interface gretap744 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. [ 868.970763][T14748] batman_adv: batadv0: Not using interface gretap744 (retrying later): interface not active 02:21:15 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80040200}}}}, 0x100c) 02:21:15 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000203c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:15 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x300, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:15 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xf5050000}, 0x0) [ 869.351469][T14774] batman_adv: Cannot find parent device [ 869.370054][T14774] batman_adv: batadv0: Adding interface: gretap745 [ 869.393763][T14774] batman_adv: batadv0: The MTU of interface gretap745 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. [ 869.471277][T14774] batman_adv: batadv0: Not using interface gretap745 (retrying later): interface not active 02:21:16 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xf7050000}, 0x0) 02:21:16 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x311, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:16 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0000000000000c373c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 869.756643][T14801] batman_adv: Cannot find parent device [ 869.793663][T14801] batman_adv: batadv0: Adding interface: gretap746 [ 869.814571][T14801] batman_adv: batadv0: The MTU of interface gretap746 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 869.903672][T14801] batman_adv: batadv0: Not using interface gretap746 (retrying later): interface not active 02:21:18 executing program 1: clone(0x20002004ffc, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) exit_group(0x0) write(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f00000000c0)={0x1, 0x158, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) fcntl$dupfd(0xffffffffffffffff, 0x0, 0xffffffffffffffff) socket$inet(0x2, 0x3, 0x61) fcntl$dupfd(0xffffffffffffffff, 0x0, 0xffffffffffffffff) r0 = socket$alg(0x26, 0x5, 0x0) syz_open_dev$audion(0x0, 0x0, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000280)='net/protocols\x00') bind$alg(r0, &(0x7f00000000c0)={0x26, 'hash\x00', 0x0, 0x0, 'blake2b-160\x00'}, 0x58) r2 = accept4$alg(r0, 0x0, 0x0, 0x0) sendfile(r2, r1, 0x0, 0x20000c34) 02:21:18 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xfeff0000}, 0x0) 02:21:18 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x88000000}}}}, 0x100c) 02:21:18 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0000000000000c383c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:18 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x35c, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:19 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xff0f0000}, 0x0) [ 872.215884][T14827] batman_adv: Cannot find parent device [ 872.248133][T14827] batman_adv: batadv0: Adding interface: gretap747 [ 872.283512][T14827] batman_adv: batadv0: The MTU of interface gretap747 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. 02:21:19 executing program 1: r0 = syz_open_dev$tty1(0xc, 0x4, 0x1) ioctl$PIO_FONTX(r0, 0x4b6c, &(0x7f00000004c0)={0x200, 0x0, &(0x7f00000000c0)="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"}) [ 872.364445][T14827] batman_adv: batadv0: Not using interface gretap747 (retrying later): interface not active 02:21:19 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xffffa888}, 0x0) 02:21:19 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000403c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:19 executing program 1: perf_event_open(&(0x7f0000000440)={0x2, 0x70, 0xfffffffffffffffa, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffd, 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$inet_udplite(0x2, 0x2, 0x88) r1 = socket$inet_udplite(0x2, 0x2, 0x88) r2 = fcntl$dupfd(r0, 0x0, r1) pipe(0x0) write(0xffffffffffffffff, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) clone(0x0, 0x0, 0x0, 0x0, 0x0) 02:21:19 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x360, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:19 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xb80b0000}}}}, 0x100c) 02:21:19 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xffffff7f}, 0x0) [ 872.820780][T14872] batman_adv: Cannot find parent device [ 872.829492][T14872] batman_adv: batadv0: Adding interface: gretap748 [ 872.855939][T14872] batman_adv: batadv0: The MTU of interface gretap748 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. [ 872.901785][T14872] batman_adv: batadv0: Not using interface gretap748 (retrying later): interface not active 02:21:19 executing program 1: r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000000000)={0x26, 'skcipher\x00', 0x0, 0x0, 'salsa20\x00'}, 0x58) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000000080)="71e67a111feec2865254fe46b92e866d77", 0x11) 02:21:19 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xffffff9e}, 0x0) 02:21:19 executing program 1: r0 = openat$sequencer2(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x0, 0x0) ioctl$KDGKBLED(r0, 0xc0045405, &(0x7f0000a07fff)) 02:21:20 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x36c, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:20 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000483c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:20 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}, 0x1, 0x0, 0x0, 0xfffffff0}, 0x0) 02:21:20 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe8030000}}}}, 0x100c) 02:21:20 executing program 1: r0 = openat$fb0(0xffffffffffffff9c, &(0x7f0000000000)='/dev/fb0\x00', 0x0, 0x0) mmap(&(0x7f0000001000/0x1000)=nil, 0x1000, 0x0, 0x11, r0, 0x0) 02:21:20 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x2) [ 873.379097][T14920] batman_adv: Cannot find parent device [ 873.410089][T14920] batman_adv: batadv0: Adding interface: gretap749 [ 873.435982][T14920] batman_adv: batadv0: The MTU of interface gretap749 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. [ 873.531509][T14920] batman_adv: batadv0: Not using interface gretap749 (retrying later): interface not active 02:21:20 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = epoll_create1(0x0) r1 = fcntl$dupfd(r0, 0x2, 0xffffffffffffffff) r2 = fanotify_init(0x0, 0x0) dup2(r1, r2) 02:21:20 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = epoll_create1(0x0) r1 = fcntl$dupfd(r0, 0x2, 0xffffffffffffffff) r2 = fanotify_init(0x0, 0x0) dup2(r1, r2) 02:21:20 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x3) 02:21:20 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3b8, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:20 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) setsockopt$inet6_MCAST_MSFILTER(r4, 0x29, 0x30, &(0x7f0000000440)={0x40, {{0xa, 0x4e23, 0xfffffffe, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02', 0x401}}, 0x1, 0x5, [{{0xa, 0x4e22, 0x3, @local}}, {{0xa, 0x4e24, 0x2a, @private1={0xfc, 0x1, [], 0x1}, 0x8}}, {{0xa, 0x4e24, 0x9, @private2, 0xbd24}}, {{0xa, 0x4e20, 0xb85c, @empty, 0x9249}}, {{0xa, 0x4e22, 0x1, @dev={0xfe, 0x80, [], 0x1d}, 0x9}}]}, 0x310) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) syz_extract_tcp_res$synack(&(0x7f0000000080)={0x41424344, 0x41424344}, 0x1, 0x0) syz_extract_tcp_res$synack(&(0x7f00000000c0)={0x41424344, 0x41424344}, 0x1, 0x0) write$tun(r2, &(0x7f0000000280)={@void, @val={0x3, 0xd2cc4329015f3c42}, @mpls={[], @ipv4=@tcp={{0x11, 0x4, 0x0, 0x6, 0x177, 0x67, 0x0, 0x1, 0x6, 0x0, @dev={0xac, 0x14, 0x14, 0x41}, @private=0xa010102, {[@timestamp={0x44, 0x24, 0x38, 0x0, 0x3, [0x66, 0x10000, 0x81, 0xc2e, 0xe72, 0xfff, 0x7, 0x4]}, @ssrr={0x89, 0x7, 0x19, [@initdev={0xac, 0x1e, 0x1, 0x0}]}, @ra={0x94, 0x4, 0x1}]}}, {{0x4e20, 0x4e20, r5, r6, 0x0, 0x0, 0xe, 0x1, 0x1, 0x0, 0x4, {[@timestamp={0x8, 0xa, 0x7, 0x4}, @window={0x3, 0x3}, @sack_perm={0x4, 0x2}, @sack={0x5, 0x12, [0x7, 0x1, 0x7fffffff, 0x3]}, @nop]}}, {"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"}}}}}, 0x181) 02:21:20 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000004c3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:20 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf4010000}}}}, 0x100c) 02:21:20 executing program 1: perf_event_open(&(0x7f00000001c0)={0x2, 0x5a, 0xe8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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(0x2000000000000021, 0x2, 0x10000000000002) connect$rxrpc(r0, &(0x7f0000000140)=@in4={0x21, 0x0, 0x2, 0x10}, 0x24) sendmmsg(r0, &(0x7f0000005c00)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f00000001c0)=ANY=[@ANYBLOB="18000000000000001001000001"], 0x18}}], 0x1, 0x0) recvmmsg(r0, 0x0, 0x0, 0x0, 0x0) sendmmsg(r0, &(0x7f0000005c00)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f00000001c0)=ANY=[], 0x18}}], 0x1, 0x0) [ 873.981041][T14954] batman_adv: Cannot find parent device 02:21:20 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x4) [ 874.021320][T14954] batman_adv: batadv0: Adding interface: gretap750 [ 874.039673][T14954] batman_adv: batadv0: The MTU of interface gretap750 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 874.124236][T14954] batman_adv: batadv0: Not using interface gretap750 (retrying later): interface not active 02:21:21 executing program 1: prctl$PR_SET_PTRACER(0x59616d61, 0xffffffffffffffff) clone(0x802102001ffe, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = gettid() wait4(0x0, 0x0, 0x80000000, 0x0) ptrace$setopts(0x4206, r0, 0x0, 0x0) tkill(r0, 0x6) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000080)={0xffffffffffffffff, 0x0, 0x47, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x91, 0x0, &(0x7f0000000240)="207ef39c5f3eb2bda7a300babee27d2d20000000000001005c3f0ec27c70f69509e1c625ddda54090944e27ca559c64e9a385db4e4934ac5eb09ff2daaeebb500500f0feb0e836b1d791501af2c6a21cf764a7ae0e0f3b53e5868adc6bda8877f05a7e904c38b58a7edae7b67971b8b138467ff79778c915958fdef7bf636374010adea05a9bfd9ec0fc2b83ecc119e58e"}, 0x40) sendmsg$key(0xffffffffffffffff, &(0x7f0000000040)={0x3, 0x0, &(0x7f0000000080)={0x0, 0x10}}, 0x0) ptrace$cont(0x18, r0, 0x0, 0x0) ptrace$setregs(0xd, r0, 0x0, &(0x7f0000000080)) ptrace$cont(0x20, r0, 0x0, 0x0) 02:21:21 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3c2, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:21 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000603c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:21 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x5) 02:21:21 executing program 1: r0 = syz_open_dev$tty20(0xc, 0x4, 0x1) ioctl$VT_RESIZEX(r0, 0x560a, &(0x7f0000000040)={0x0, 0x3, 0x0, 0x0, 0xc, 0x1}) 02:21:21 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x6) [ 874.600525][T15016] batman_adv: Cannot find parent device [ 874.626080][T15016] batman_adv: batadv0: Adding interface: gretap751 02:21:21 executing program 1: clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = socket$inet6_udp(0xa, 0x2, 0x0) setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000480)=@raw={'raw\x00', 0x3c1, 0x3, 0x488, 0x2dc, 0x1005801, 0x294, 0x2dc, 0x294, 0x3c0, 0x378, 0x378, 0x3c0, 0x378, 0x3, 0x0, {[{{@ipv6={@ipv4={[0x98, 0x0, 0x9, 0x0, 0x6c], [], @dev}, @rand_addr=' \x01\x00', [], [], 'macvtap0\x00', 'vlan1\x00'}, 0x0, 0x2b4, 0x2dc, 0x52020000, {}, [@common=@inet=@hashlimit2={{0x150, 'hashlimit\x00'}, {'gre0\x00', {0x0, 0xf5, 0x0, 0x0, 0x0, 0x1, 0x7fffffff}}}, @common=@unspec=@string={{0xc0, 'string\x00'}, {0x0, 0x0, 'bm\x00', "f276ebec4e3afbf80995e73e1a2f8662f723fd1eb991ff9d81ef5cbe2e76a5253bd79477483450be63a202fc56c072f6a3f5dad38acc9209eef9d1872d19f7bfe670964dc184e0c9f0ad03267563e4982141541c3c13a16f01a8ea8dcb3498d811e94592f2b44e2f29bbf53023ce6ed64651037c4402ed8dd5681708c176a0bd", 0x47}}]}, @common=@inet=@SET1={0x28, 'SET\x00'}}, {{@uncond, 0x0, 0xa4, 0xe4}, @common=@inet=@TCPOPTSTRIP={0x40, 'TCPOPTSTRIP\x00'}}], {{[], 0x0, 0xa4, 0xc8}, {0x24}}}}, 0x4e4) ptrace(0xffffffffffffffff, 0x0) [ 874.651439][T15016] batman_adv: batadv0: The MTU of interface gretap751 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 874.729782][T15016] batman_adv: batadv0: Not using interface gretap751 (retrying later): interface not active 02:21:21 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) r2 = syz_open_dev$sndpcmc(&(0x7f0000000080)='/dev/snd/pcmC#D#c\x00', 0xe6, 0x200) ioctl$SNDRV_PCM_IOCTL_READI_FRAMES(r2, 0x80184151, &(0x7f00000000c0)={0x0, &(0x7f0000000280)="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", 0x1000}) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r4 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r3, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:21:21 executing program 1: r0 = socket(0x10, 0x2, 0x0) bind$inet(r0, &(0x7f0000000200)={0x2, 0x0, @empty}, 0x10) 02:21:21 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000058653c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:21 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfdffffff}}}}, 0x100c) 02:21:21 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x7) 02:21:21 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3c4, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:21 executing program 1: open(&(0x7f0000000000)='./file0\x00', 0x208041, 0x0) sync() rename(&(0x7f0000000500)='./file0\x00', &(0x7f0000000000)='./file2\x00') lsetxattr$trusted_overlay_opaque(&(0x7f0000000100)='./file2/file0/file0\x00', 0x0, 0x0, 0x0, 0x0) [ 874.988054][T15047] batman_adv: Cannot find parent device [ 875.008422][T15047] batman_adv: batadv0: Adding interface: gretap752 02:21:21 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xa) [ 875.029719][T15047] batman_adv: batadv0: The MTU of interface gretap752 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. 02:21:22 executing program 1: open(&(0x7f0000000000)='./file0\x00', 0x208041, 0x0) sync() rename(&(0x7f0000000500)='./file0\x00', &(0x7f0000000000)='./file2\x00') lsetxattr$trusted_overlay_opaque(&(0x7f0000000100)='./file2/file0/file0\x00', 0x0, 0x0, 0x0, 0x0) [ 875.128104][T15047] batman_adv: batadv0: Not using interface gretap752 (retrying later): interface not active 02:21:22 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3ce, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:22 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xc) 02:21:22 executing program 1: r0 = socket$inet_udp(0x2, 0x2, 0x0) connect$inet(r0, &(0x7f0000000040)={0x2, 0x4e5e, @dev}, 0x10) write$binfmt_misc(r0, 0x0, 0x0) [ 875.398498][T15089] batman_adv: Cannot find parent device [ 875.431733][T15089] batman_adv: batadv0: Adding interface: gretap753 [ 875.453019][T15089] batman_adv: batadv0: The MTU of interface gretap753 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 875.483124][T15089] batman_adv: batadv0: Not using interface gretap753 (retrying later): interface not active 02:21:22 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r2, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) recvfrom$inet(r2, &(0x7f0000000180)=""/183, 0xb7, 0x1, 0x0, 0x0) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r4 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r3, &(0x7f0000000240)={@void, @val={0x3}, @arp=@ether_ipv4={0x1, 0x800, 0x6, 0x4, 0x2, @broadcast, @empty, @dev={[], 0x15}, @empty}}, 0x26) chmod(&(0x7f0000000080)='./file0\x00', 0x1b0) 02:21:22 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000683c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:22 executing program 1: clone(0x20002004ffc, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) exit_group(0x0) perf_event_open(&(0x7f0000000140)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) preadv(0xffffffffffffffff, &(0x7f00000027c0)=[{&(0x7f0000000400)=""/4108, 0x100c}], 0x1, 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000080)='net/ptype\x00') preadv(r0, &(0x7f0000000480), 0x10000000000002a1, 0x10400003) 02:21:22 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfeffffff}}}}, 0x100c) 02:21:22 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xe) 02:21:22 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3e6, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:22 executing program 1: mkdir(&(0x7f00000002c0)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000080)='./file0\x00', &(0x7f0000000280)='sysfs\x00', 0x810000, 0x0) chdir(&(0x7f00000000c0)='./file0\x00') llistxattr(&(0x7f0000000100)='./bus\x00', 0x0, 0x25) 02:21:22 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf) [ 875.798511][T15115] batman_adv: Cannot find parent device [ 875.832337][T15115] batman_adv: batadv0: Adding interface: gretap754 [ 875.857375][T15115] batman_adv: batadv0: The MTU of interface gretap754 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:21:22 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x10) 02:21:22 executing program 1: prctl$PR_SET_PTRACER(0x59616d61, 0xffffffffffffffff) clone(0x80000100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = gettid() wait4(0x0, 0x0, 0x80000002, 0x0) vmsplice(0xffffffffffffffff, &(0x7f0000000100)=[{&(0x7f0000000040)="0f34", 0x2}], 0x1, 0x0) ptrace$setopts(0x4206, r0, 0x0, 0x0) process_vm_writev(0x0, &(0x7f0000000080)=[{0x0}, {0x0}, {&(0x7f00000001c0)=""/1, 0x1}], 0x3, 0x0, 0x0, 0x0) tkill(r0, 0x15) write$sndseq(0xffffffffffffffff, &(0x7f00000000c0)=[{0x0, 0x0, 0x0, 0x0, @time, {}, {}, @ext={0x109, &(0x7f0000000540)="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"}}], 0x1c) ptrace$setregs(0xd, r0, 0x0, &(0x7f0000000080)) ptrace$cont(0x7, r0, 0x0, 0x0) [ 875.952595][T15115] batman_adv: batadv0: Not using interface gretap754 (retrying later): interface not active 02:21:22 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000006c3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:23 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3e8, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 876.320578][T15173] batman_adv: Cannot find parent device [ 876.362207][T15173] batman_adv: batadv0: Adding interface: gretap755 [ 876.382575][T15173] batman_adv: batadv0: The MTU of interface gretap755 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 876.432562][T15173] batman_adv: batadv0: Not using interface gretap755 (retrying later): interface not active 02:21:23 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000743c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:23 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x60) 02:21:23 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffff7f}}}}, 0x100c) 02:21:23 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3ec, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:23 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) set_tid_address(&(0x7f0000000080)) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) ioctl$sock_SIOCGPGRP(r4, 0x8904, &(0x7f00000000c0)) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:21:23 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x300) [ 876.745115][T15205] batman_adv: Cannot find parent device [ 876.795768][T15205] batman_adv: batadv0: Adding interface: gretap756 [ 876.823005][T15205] batman_adv: batadv0: The MTU of interface gretap756 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 876.873749][T15205] batman_adv: batadv0: Not using interface gretap756 (retrying later): interface not active 02:21:23 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000007a3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:23 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3f0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:23 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x500) [ 877.179320][T15235] batman_adv: Cannot find parent device [ 877.205551][T15235] batman_adv: batadv0: Adding interface: gretap757 [ 877.212362][T15235] batman_adv: batadv0: The MTU of interface gretap757 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. [ 877.284585][T15235] batman_adv: batadv0: Not using interface gretap757 (retrying later): interface not active 02:21:25 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffd}}}}, 0x100c) 02:21:25 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x4e21, @local}}) write$tun(r2, &(0x7f0000000080)=ANY=[@ANYBLOB="03000000000000000000480002240000000000069078ac141400ac1408bb0d009078000000000000000000000000000000007970af81ea0e74085967ebf0683074e3f8"], 0x100c) 02:21:25 executing program 1: r0 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0) ftruncate(r0, 0x200004) r1 = open(&(0x7f0000000400)='./bus\x00', 0x14103e, 0x0) mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x7ffffe, 0x11, r1, 0x0) r2 = open(&(0x7f0000000040)='./bus\x00', 0x17e, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$inet6(0xa, 0x400000000001, 0x0) sendmsg$unix(0xffffffffffffffff, &(0x7f00000092c0)={&(0x7f0000000000)=@file={0x0, './bus\x00'}, 0x6e, 0x0, 0x0, &(0x7f0000001600)=ANY=[@ANYRES32, @ANYRES32, @ANYRES32, @ANYRES32, @ANYRES32, @ANYRES32, @ANYRES32, @ANYBLOB, @ANYRES32=0x0, @ANYRES32=0x0, @ANYRES32=0x0, @ANYRES32=0x0, @ANYBLOB='\x00\x00\x00\x00'], 0xa0, 0x48}, 0x8000) fsetxattr$system_posix_acl(r2, &(0x7f0000000000)='system.posix_acl_default\x00', 0x0, 0x0, 0x0) sendfile(r2, r2, 0x0, 0x8080fffffffe) read(r1, &(0x7f0000000180)=""/19, 0xfffffe47) 02:21:25 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3f8, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:25 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x5c0) 02:21:25 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000000813c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:26 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x5c5) [ 879.190022][T15269] batman_adv: Cannot find parent device [ 879.228129][T15269] batman_adv: batadv0: Adding interface: gretap758 [ 879.254702][T15269] batman_adv: batadv0: The MTU of interface gretap758 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. 02:21:26 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x5cd) 02:21:26 executing program 1: socket$inet_udplite(0x2, 0x2, 0x88) mkdir(&(0x7f0000000000)='./file0\x00', 0x0) openat(0xffffffffffffffff, &(0x7f00000001c0)='./file0\x00', 0xd4602, 0x8) mount$bpf(0x20000000, &(0x7f0000000100)='./file0\x00', 0x0, 0x2001001, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x3ee}, 0x1, 0x0, 0x1df, 0x4}, 0x0, 0xfffffdffffffffff, 0xffffffffffffffff, 0x0) pivot_root(&(0x7f0000000340)='./file0\x00', &(0x7f0000000080)='./file0\x00') ioctl$TCSETA(0xffffffffffffffff, 0x5406, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) write$cgroup_type(0xffffffffffffffff, &(0x7f0000000380)='threaded\x00', 0x9) socket(0x11, 0x0, 0x0) sendmsg$nl_route(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=@newlink={0x30, 0x10, 0x801, 0x4, 0x0, {}, [@IFLA_MASTER={0x8}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) getsockopt$inet_tcp_buf(0xffffffffffffffff, 0x6, 0x1c, &(0x7f00000000c0), &(0x7f0000000240)) stat(&(0x7f0000000280)='./file0\x00', 0x0) stat(&(0x7f0000000400)='./file0\x00', &(0x7f0000000440)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) setsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f00000004c0)={0x0, 0x0, r1}, 0xc) chown(&(0x7f00000000c0)='./file0\x00', 0x0, r1) sendmsg$NLBL_CALIPSO_C_ADD(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x80}, 0xc, 0x0}, 0x0) sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x8000fffffffe) [ 879.340501][T15269] batman_adv: batadv0: Not using interface gretap758 (retrying later): interface not active 02:21:26 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x5d7) 02:21:26 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x5f3) 02:21:26 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3fc, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 879.826857][T15302] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 879.887896][T15302] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 879.904127][T15302] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 879.955275][T15302] device bridge_slave_0 left promiscuous mode [ 879.970392][T15302] bridge0: port 1(bridge_slave_0) entered disabled state [ 880.049957][T15302] device bridge_slave_1 left promiscuous mode [ 880.057797][T15302] bridge0: port 2(bridge_slave_1) entered disabled state [ 880.105981][T15302] bond0: (slave bond_slave_0): Releasing backup interface [ 880.278499][T15302] bond0: (slave bond_slave_1): Releasing backup interface [ 880.371003][T15302] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 880.379202][T15302] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 880.389352][T15302] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 880.397690][T15302] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 880.419198][T15302] batman_adv: batadv0: Removing interface: gretap1 [ 880.427062][T15302] batman_adv: batadv0: Removing interface: gretap2 [ 880.436018][T15302] batman_adv: batadv0: Removing interface: gretap3 [ 880.445401][T15302] batman_adv: batadv0: Removing interface: gretap4 [ 880.453459][T15302] batman_adv: batadv0: Removing interface: gretap5 [ 880.460967][T15302] batman_adv: batadv0: Removing interface: gretap6 [ 880.470229][T15302] batman_adv: batadv0: Removing interface: gretap7 [ 880.478388][T15302] batman_adv: batadv0: Removing interface: gretap8 [ 880.486951][T15302] batman_adv: batadv0: Removing interface: gretap9 [ 880.495787][T15302] batman_adv: batadv0: Removing interface: gretap10 [ 880.504548][T15302] batman_adv: batadv0: Removing interface: gretap17 [ 880.513297][T15302] batman_adv: batadv0: Removing interface: gretap18 [ 880.521172][T15302] batman_adv: batadv0: Removing interface: gretap31 [ 880.530050][T15302] batman_adv: batadv0: Removing interface: gretap41 [ 880.538135][T15302] batman_adv: batadv0: Removing interface: gretap42 [ 880.547598][T15302] batman_adv: batadv0: Removing interface: gretap43 [ 880.555921][T15302] batman_adv: batadv0: Removing interface: gretap44 [ 880.567044][T15302] batman_adv: batadv0: Removing interface: gretap45 [ 880.576556][T15302] batman_adv: batadv0: Removing interface: gretap46 [ 880.585259][T15302] batman_adv: batadv0: Removing interface: gretap47 [ 880.594433][T15302] batman_adv: batadv0: Removing interface: gretap48 [ 880.602259][T15302] batman_adv: batadv0: Removing interface: gretap49 [ 880.613597][T15302] batman_adv: batadv0: Removing interface: gretap50 [ 880.628288][T15317] batman_adv: Cannot find parent device [ 880.638083][T15317] batman_adv: batadv0: Adding interface: gretap759 [ 880.644953][T15317] batman_adv: batadv0: The MTU of interface gretap759 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. [ 880.671164][T15317] batman_adv: batadv0: Not using interface gretap759 (retrying later): interface not active [ 880.694811][T15322] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 880.713083][T15322] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 880.721062][T15322] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready 02:21:27 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffe}}}}, 0x100c) 02:21:27 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000ffffa8883c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:27 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x5f5) 02:21:27 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x500, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:27 executing program 1: r0 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0) ftruncate(r0, 0x200004) r1 = open(&(0x7f0000000400)='./bus\x00', 0x14103e, 0x0) mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x7ffffe, 0x11, r1, 0x0) r2 = open(&(0x7f0000000040)='./bus\x00', 0x17e, 0x0) sendmsg$unix(0xffffffffffffffff, &(0x7f0000000500)={&(0x7f0000000000)=@abs={0x1}, 0x6e, &(0x7f0000001580), 0x6d36587c4e0e09cf, &(0x7f0000001700)=[@rights={{0x28, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @cred={{0x1c, 0x1, 0x2, {0x0, 0x0, 0xffffffffffffffff}}}, @cred, @cred={{0x1c}}, @rights={{0x34, 0x1, 0x1, [0xffffffffffffffff, r2, 0xffffffffffffffff, r0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, r0, r2]}}], 0xc0, 0x4048}, 0xc004) r3 = perf_event_open(&(0x7f00000001c0)={0x2, 0x70, 0x76, 0x8000000000001, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0x1}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r4 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffe, 0x0, @perf_config_ext={0xfffffffffffffffd}, 0x40260}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r5 = socket$inet6(0xa, 0x400000000001, 0x0) close(r5) r6 = open(&(0x7f0000002000)='./bus\x00', 0x143042, 0x0) r7 = socket$inet6(0xa, 0x400000000001, 0x0) r8 = socket(0x10, 0x2, 0x0) getsockopt$sock_cred(r8, 0x1, 0x11, &(0x7f0000caaffb)={0x0, 0x0, 0x0}, &(0x7f0000cab000)=0xc) setresgid(r9, 0x0, 0x0) lsetxattr$system_posix_acl(&(0x7f0000000080)='./bus\x00', &(0x7f00000000c0)='system.posix_acl_access\x00', &(0x7f00000001c0)={{}, {}, [{0x2, 0x2}, {0x2, 0x4}, {}], {0x4, 0x5}, [{}, {}, {0x8, 0x5, r9}], {0x10, 0x4}}, 0x54, 0x2) sendmsg$unix(0xffffffffffffffff, &(0x7f00000092c0)={&(0x7f0000000000)=@file={0x1, './bus\x00'}, 0x6e, &(0x7f0000001580)=[{&(0x7f0000000080)="c6e934329bfaac9e83c3249c4d153d855109dfdb428b9cbeb77b2f4f36c121baee19cc005d929a6c59fbcc1c96ec6b084697d145f6fbe2ceaf5b71b0e9012bd3a4de30ac0829e1681b599ad42d295f70e827e50f774858006990a1756d2c32acd1e5a8f6509e9a06f9e1104e63681c46def35aa7aa47ce22829f80c5169e80ccbb01b3ec60d3364614eb544c7d7315b0ba2b0c4a83046846b1d6d88ee66d60444e5824c072d4c1ee20", 0xa9}, {&(0x7f0000000140)="356f9e12e587", 0x6}, {&(0x7f0000000580)="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", 0x1000}, {&(0x7f0000000240)="d77ffd220d4d83c5e332763db263e518bbac2c276abe181d7450ff884289669eef28101be5862d026dc64152494155482a50135199bdb86c550a5da215017b9cb53239fc21b955d8d84028128a5fb60c099358251f4f1dba2809cc68df2003cddf2e76870cc8b0581363b51be0d073393b2b12f1bd632a5ec4995024658ebb97af974bd77382d7b23b7fbf7c8f5e73452db2cceb", 0x94}, {&(0x7f0000000180)="f69f154009eb24e48ee59fc6665a90265fbb302cb660c73c623f7ec4083cbacb0a061886848991bc2b215e71", 0x2c}, {&(0x7f0000000300)="63f8883e855c9b1eba0467c6de40c0d0f8383e66186a8306482b898a6b6f58ccadcc4d70f937d107af1afd92429c5eb30a0cfa949c7982bbf898b4adff05f0ba5d3eaca885902bcf3e7cca6f3996bcdf972f6977a8b57463717b585d721fd3c481682641a4b39fd4481d143422d3b153042c16bb3c10782348bac344cf911807fe17d02d8bc46941ec02e1ce8ef2f8b023314cdd73a8553b6b0a53fa2c3a72fe81dc516567f3b3a11831da91795ed97a3bf4a8b66b47178b1b6193f046b1c32ca0c13975fa180bc223d6", 0xca}, {&(0x7f0000000400)="af7d47eea57fd419cc51b41923f6d09a192596eef880755a830d45278f6087bf8aaae1c177ecd2c77cba700fda18dd326a84b0f14055f32ff5bf40823f318f2e2aca68157b09456781158f87552e232696375ebbd04d92bd915562eaecb53f171877f9cb27e46d52619ff9868a7c9de0b7996cd0366ecded95a6e9e0c7a775a8aa326e030e9cdee1240784567aa71c940ca8f38ffb4f848124793f9e45adca61036f407affbe4279fb304d91dd999279ef600e9ae6470e79464692d6c017428c90efd16810700851eb5e2dd5c482def09b407c760764c21a260c3b5426b77f2297f98b1bf62d51eeaa7d", 0xea}], 0x7, &(0x7f0000001600)=ANY=[@ANYBLOB="280000000000000100000001000000e0ed68f3b05570a3f736518941b1dad40a24f10411954dcd2936dc65a5814455b2e1ab90565cc50e321a4077b206024d705dc44e0312cb7f92b32402e9af97c82037bcf5a2996f42fcf9b07f73d669d90edd6da583ea22842509bf6010e0c1", @ANYRES32=r4, @ANYRES32, @ANYRES32, @ANYRES32=r4, @ANYRES32=r7, @ANYRES32, @ANYBLOB="34000000000000000100000001000000", @ANYRES32, @ANYRES32=r5, @ANYRES32, @ANYRES32=r3, @ANYRES32, @ANYRES32, @ANYRES32=r6, @ANYRES32, @ANYRES32, @ANYBLOB="000000001c000000000000000100000002000000", @ANYRES32=0x0, @ANYRES32=0x0, @ANYRES32=0x0, @ANYBLOB="000000001c000000000000000100000002000000", @ANYRES32=0x0, @ANYRES32=0x0, @ANYRES32=r9, @ANYBLOB='\x00\x00\x00\x00'], 0xa0, 0x48}, 0x8000) fsetxattr$system_posix_acl(r2, &(0x7f0000000000)='system.posix_acl_default\x00', &(0x7f00000001c0)={{}, {0x1, 0x4}, [{0x2, 0x1}, {0x2, 0x3}, {0x2, 0x4}, {0x2, 0x1}, {0x2, 0x1, 0xee00}, {0x2, 0x1, 0xffffffffffffffff}], {0x4, 0x1}, [{0x8, 0x5}, {0x8, 0x0, r9}], {0x10, 0x5}, {0x20, 0x6}}, 0x64, 0x0) sendfile(r2, r2, 0x0, 0x8080fffffffe) read(r1, &(0x7f0000000180)=""/19, 0xfffffe47) 02:21:27 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) dup(r0) r1 = openat$null(0xffffffffffffff9c, &(0x7f0000000080)='/dev/null\x00', 0x511800, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)=ANY=[@ANYBLOB="033cc034cda10000000020000000480002240000000000069078ac8000"/50], 0x100c) [ 881.004063][T15343] batman_adv: Cannot find parent device [ 881.028098][T15343] batman_adv: batadv0: Adding interface: gretap760 02:21:27 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x5f7) [ 881.051989][T15343] batman_adv: batadv0: The MTU of interface gretap760 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 881.139262][T15343] batman_adv: batadv0: Not using interface gretap760 (retrying later): interface not active 02:21:28 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x600, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:28 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000ffffff9e3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:28 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x600) 02:21:28 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffff}}}}, 0x100c) [ 881.534444][T15396] batman_adv: Cannot find parent device 02:21:28 executing program 1: [ 881.575382][T15396] batman_adv: batadv0: Adding interface: gretap761 [ 881.590333][T15396] batman_adv: batadv0: The MTU of interface gretap761 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 881.674931][T15396] batman_adv: batadv0: Not using interface gretap761 (retrying later): interface not active 02:21:28 executing program 1: 02:21:28 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x60d) 02:21:28 executing program 5: socket$inet_icmp_raw(0x2, 0x3, 0x1) r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) r2 = socket$inet6(0xa, 0x5, 0x0) close(r2) r3 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r3, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r2, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r2, r3, 0x0, 0x80001d00c0d0) r4 = dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) r5 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x2}) r6 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r6, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r5, &(0x7f0000000240)=ANY=[@ANYBLOB="03000000000000000000480002240000000000069078ac141400ac1408bbff00907800"/50], 0x100c) 02:21:28 executing program 1: 02:21:28 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000ffffffc33c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:28 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x700, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:28 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:21:28 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x700) 02:21:28 executing program 1: [ 882.173631][T15429] batman_adv: Cannot find parent device 02:21:29 executing program 1: [ 882.241753][T15429] batman_adv: batadv0: Adding interface: gretap762 [ 882.271154][T15429] batman_adv: batadv0: The MTU of interface gretap762 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. 02:21:29 executing program 1: [ 882.366020][T15429] batman_adv: batadv0: Not using interface gretap762 (retrying later): interface not active 02:21:29 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000580)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000000)={'ip_vti0\x00', 0x201e}) r1 = socket$inet6(0xa, 0x1000000000002, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = dup(r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000200)={'ip_vti0\x00', 0x0}) r5 = socket$inet6_tcp(0xa, 0x1, 0x0) ioctl$sock_inet6_SIOCSIFADDR(r5, 0x8916, &(0x7f0000000040)={@dev, 0x3, r4}) setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000480)={@initdev={0xfe, 0x88, [], 0x0, 0x0}, r4}, 0x14) 02:21:29 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x900, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:29 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'veth1_macvtap\x00', 0x200}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) write$tun(r4, &(0x7f0000000180)={@void, @val={0x3}, @mpls={[], @ipv4=@udp={{0x1f, 0x4, 0x0, 0x36, 0xc4, 0x64, 0x0, 0x8, 0x11, 0x0, @loopback, @multicast1, {[@rr={0x7, 0x3, 0x5b}, @timestamp_addr={0x44, 0x34, 0xf1, 0x1, 0x0, [{@private=0xa010100, 0x2}, {@empty, 0x2}, {@empty, 0x20}, {@multicast2, 0x8f2}, {@initdev={0xac, 0x1e, 0x0, 0x0}, 0x3ff}, {@broadcast, 0x1}]}, @timestamp_prespec={0x44, 0x24, 0x11, 0x3, 0x2, [{@empty, 0xda}, {@dev={0xac, 0x14, 0x14, 0x28}, 0x6}, {@dev={0xac, 0x14, 0x14, 0x39}, 0xffff}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0x1000}]}, @ssrr={0x89, 0xb, 0x83, [@local, @rand_addr=0x64010100]}]}}, {0x4e23, 0x4e20, 0x48, 0x0, @wg=@cookie={0x3, 0x4, "ae39cb1871d20e9bf48f975129efbf195eaaed96b25d2b29", "b031956e55050fcfdcbcdabf63b6c36732f3a12d7fd633c0f08e133a9150b43d"}}}}}, 0xce) 02:21:29 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}}}}, 0x100c) 02:21:29 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xa00) 02:21:29 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000000003c43c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:29 executing program 1: pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) socket$packet(0x11, 0x0, 0x300) r2 = socket$inet_udp(0x2, 0x2, 0x0) fcntl$setpipe(r1, 0x407, 0x0) write$binfmt_misc(r1, &(0x7f0000000140)=ANY=[], 0x4240a2a0) r3 = openat$procfs(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$KVM_SET_FPU(r0, 0x41a0ae8d, &(0x7f0000000240)={[], 0xfffa, 0x8001, 0x4, 0x0, 0x0, 0x4, 0x4, [], 0x3f}) syz_genetlink_get_family_id$smc(0x0) ioctl$EVIOCGPHYS(r3, 0x80404507, 0x0) bind$inet(r2, &(0x7f0000000180)={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x32}}, 0x10) connect$inet(r2, &(0x7f0000000040)={0x2, 0x0, @multicast1}, 0x10) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) splice(r0, 0x0, r2, 0x0, 0x30009, 0x0) getsockopt$inet_pktinfo(0xffffffffffffffff, 0x0, 0x8, 0x0, 0x0) [ 882.771940][T15467] batman_adv: Cannot find parent device [ 882.801567][T15467] batman_adv: batadv0: Adding interface: gretap763 [ 882.823818][T15467] batman_adv: batadv0: The MTU of interface gretap763 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 882.879209][T15467] batman_adv: batadv0: Not using interface gretap763 (retrying later): interface not active 02:21:29 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xc00) 02:21:29 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xa00, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:29 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000003fdec3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:30 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x509002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) write$P9_RREADDIR(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="2a000000290100000200002900000000020000000000000000000128000107002e2f66696c6530000000"], 0x2a) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) ioctl$NBD_CLEAR_SOCK(r1, 0xab04) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r4, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) write$tun(r4, &(0x7f0000002600)={@val={0x0, 0x8100}, @val={0x3, 0x0, 0x0, 0x1, 0x1ff, 0x3}, @mpls={[{0x9, 0x0, 0x1}, {0x7}, {0x92ac, 0x0, 0x1}, {0x5, 0x0, 0x1}, {0x9299}, {0x8, 0x0, 0x1}, {0xffffa}, {0x5}], @ipv6=@generic={0x4, 0x6, "ccd101", 0x1100, 0x3b, 0x1, @ipv4={[], [], @loopback}, @empty, {[@hopopts={0x2b, 0x0, [], [@enc_lim={0x4, 0x1, 0x21}, @pad1]}, @hopopts={0x33, 0x1c, [], [@jumbo, @jumbo={0xc2, 0x4, 0x1}, @calipso={0x7, 0x30, {0x3, 0xa, 0x1, 0x6, [0x7, 0xfff, 0x5, 0x8, 0x7fffffff]}}, @calipso={0x7, 0x10, {0x2, 0x2, 0x4, 0x747e, [0x6]}}, @calipso={0x7, 0x40, {0x2, 0xe, 0x8, 0x3, [0x15, 0xffffffff, 0x9, 0x5, 0x1, 0x9, 0x7fffffff]}}, @jumbo, @hao={0xc9, 0x10, @rand_addr=' \x01\x00'}, @jumbo={0xc2, 0x4, 0x2}, @calipso={0x7, 0x30, {0x3, 0xa, 0x2, 0x8, [0x1, 0x800000000000000, 0x0, 0x8, 0x240000]}}]}], 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0x1156) r5 = socket(0x11, 0x6, 0x2) getpeername$packet(r5, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000100)=0x14) [ 883.218189][T15511] batman_adv: Cannot find parent device [ 883.248540][T15511] batman_adv: batadv0: Adding interface: gretap764 [ 883.255703][T15511] batman_adv: batadv0: The MTU of interface gretap764 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. [ 883.306623][T15511] batman_adv: batadv0: Not using interface gretap764 (retrying later): interface not active 02:21:30 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3}}}}, 0x100c) 02:21:30 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000fffffff03c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:30 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xc00, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:30 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xd06) 02:21:30 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) [ 883.579456][T15544] batman_adv: Cannot find parent device [ 883.596697][T15544] batman_adv: batadv0: Adding interface: gretap765 [ 883.604342][T15544] batman_adv: batadv0: The MTU of interface gretap765 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. 02:21:30 executing program 1: r0 = memfd_create(&(0x7f0000000100)='\vem1\xc1\xf8\xa6\x8dN\xc0\xa3w\xe2\xcb\xa2\xba\xe5\xf4\x97\xac#*\xff', 0x0) write(r0, &(0x7f0000000040)="0600", 0x2) write$FUSE_NOTIFY_STORE(r0, &(0x7f0000000680)=ANY=[@ANYBLOB="49e7ff000000350000007f12da8a42"], 0xe) sendfile(r0, r0, &(0x7f0000001000), 0xffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000000000/0x7000)=nil, 0x7000, 0x80000000004, 0x11, r0, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f000001a000)={0xffffffffffffffff, 0xffffffffffffffff}) setsockopt$SO_ATTACH_FILTER(r1, 0x1, 0x1a, &(0x7f000002eff0)={0x32b, &(0x7f0000000000)=[{}]}, 0x10) [ 883.671533][T15544] batman_adv: batadv0: Not using interface gretap765 (retrying later): interface not active 02:21:30 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xe00) 02:21:30 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xc38, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:30 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000fffffffc3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:30 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) socket$alg(0x26, 0x5, 0x0) r3 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r3, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) getsockopt$inet_IP_IPSEC_POLICY(r3, 0x0, 0x10, &(0x7f0000000280)={{{@in=@dev, @in=@loopback}}, {{@in6=@mcast1}, 0x0, @in=@local}}, &(0x7f0000000080)=0xe8) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) openat$vcsu(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vcsu\x00', 0x210202, 0x0) r4 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="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"], 0x32) [ 883.971965][T15570] batman_adv: Cannot find parent device 02:21:30 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf00) [ 884.025383][T15570] batman_adv: batadv0: Adding interface: gretap766 [ 884.055313][T15570] batman_adv: batadv0: The MTU of interface gretap766 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. [ 884.101077][T15570] batman_adv: batadv0: Not using interface gretap766 (retrying later): interface not active 02:21:31 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xc39, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:31 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4}}}}, 0x100c) 02:21:31 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x3f00) 02:21:31 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000fffffffe3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 884.294242][T15598] batman_adv: Cannot find parent device [ 884.354372][T15598] batman_adv: batadv0: Adding interface: gretap767 [ 884.377186][T15598] batman_adv: batadv0: The MTU of interface gretap767 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. 02:21:31 executing program 1: r0 = socket(0x1000000010, 0x80002, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=ANY=[@ANYBLOB="48000000100005070ed0b864256b1ceba6000000", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000900010076657468000000001800020014000100", @ANYRES32=0x0], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000003c0)=ANY=[@ANYBLOB="38000000240007e7ffff0777e0d7d774fd40ac00", @ANYRES32=r4, @ANYBLOB="00000000ffffffff01000000090001006866736300000000080002"], 0x38}}, 0x0) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000005c0)=@newtfilter={0x58, 0x2c, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4, {}, {}, {0x8}}, [@filter_kind_options=@f_u32={{0x8, 0x1, 'u32\x00'}, {0x2c, 0x2, [@TCA_U32_SEL={0x14}, @TCA_U32_INDEV={0x14, 0x8, 'hsr0\x00'}]}}]}, 0x58}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_open_dev$vcsu(&(0x7f00000000c0)='/dev/vcsu#\x00', 0x77c, 0x0) sendmmsg$alg(r0, &(0x7f0000000200), 0x10efe10675dec16, 0x0) [ 884.466673][T15598] batman_adv: batadv0: Not using interface gretap767 (retrying later): interface not active 02:21:31 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xe00, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:31 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x4000) [ 884.774394][T15633] batman_adv: Cannot find parent device [ 884.812013][T15633] batman_adv: batadv0: Adding interface: gretap768 02:21:31 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000007fffffff3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 884.849070][T15633] batman_adv: batadv0: The MTU of interface gretap768 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. [ 884.910912][T15633] batman_adv: batadv0: Not using interface gretap768 (retrying later): interface not active 02:21:31 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6}}}}, 0x100c) 02:21:31 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x5865) 02:21:31 executing program 1: sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0) bpf$BPF_PROG_GET_FD_BY_ID(0xd, 0x0, 0x0) r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f00000000c0)=0x2000000000000074, 0x25d) bind$inet(r0, &(0x7f0000000440)={0x2, 0x4e23, @broadcast}, 0x10) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000000480)={0x1, &(0x7f0000000400)=[{0x6, 0x0, 0x0, 0xe8}]}, 0x10) sendto$inet(r0, 0x0, 0x0, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23, @local}, 0x10) writev(r0, &(0x7f0000001c80)=[{&(0x7f0000001780)="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", 0x23b}, {&(0x7f0000000000)="12c71968000337b1b2f259279cf3cbae68b4a79f199aa96eeb040a55e0754425be97eaef95fe75f975", 0x29}], 0x2) syz_emit_ethernet(0x2a, &(0x7f0000000200)={@broadcast, @empty, @val, {@arp={0x806, @generic={0x0, 0x0, 0x6, 0x0, 0x0, @broadcast, "", @random="d800"}}}}, 0x0) sendto$inet(r0, &(0x7f00000012c0)="0c268a927f1f6588b967481241ba7860005cf65ac618ded8974895abeaf4b4834ff922b3f1e0b02bd67aa03059bcecc7a95425a3a07e758044ab4ea6f7ae55d88fecf90b1a7511bf746bec66ba", 0xfe6a, 0x11, 0x0, 0x27) 02:21:31 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000ffffffff3c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:31 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1103, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:31 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$inet6(0xa, 0x5, 0x0) close(r3) r4 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r4, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r3, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r3, r4, 0x0, 0x80001d00c0d0) syz_open_pts(r4, 0x400100) ioctl$VHOST_SET_VRING_KICK(r1, 0x4008af20, &(0x7f0000000080)={0x3}) r5 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r5, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(0xffffffffffffffff, &(0x7f0000000540)=ANY=[@ANYBLOB="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"], 0x32) socket$kcm(0x10, 0x2, 0x10) r6 = syz_genetlink_get_family_id$ipvs(&(0x7f00000001c0)='IPVS\x00') sendmsg$IPVS_CMD_GET_SERVICE(r1, &(0x7f0000000280)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000100)={&(0x7f0000000300)=ANY=[@ANYBLOB="94000000", @ANYRES16=r6, @ANYBLOB="000826bd7000fcdbdf25040000000c000380050008000100000068000380140002007767320000000000000000000000000014000600fc01000000000000000000000000000106000400010000000600040006000000060007004e2200000800010002000000140002000400000031000000000000000000000008000500ffffffff0c0002800800430002000000d6e933dba0d7"], 0x94}, 0x1, 0x0, 0x0, 0x2000c014}, 0x20040001) 02:21:32 executing program 1: socket$nl_route(0x10, 0x3, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, 0x0, 0x0) sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000003c0)=ANY=[@ANYBLOB="38000000240007050000004007a2a30005000000", @ANYRES32, @ANYBLOB="00000000ffffffff00000000090001006866736300000000080002"], 0x38}}, 0x0) r0 = socket(0x1000000010, 0x80002, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendmmsg$alg(r0, &(0x7f0000000200), 0x4924924924926d3, 0x0) 02:21:32 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x6000) [ 885.304987][T15673] batman_adv: Cannot find parent device [ 885.318290][T15673] batman_adv: batadv0: Adding interface: gretap769 [ 885.330815][T15673] batman_adv: batadv0: The MTU of interface gretap769 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. [ 885.360517][T15673] batman_adv: batadv0: Not using interface gretap769 (retrying later): interface not active 02:21:32 executing program 1: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000840)=@newsa={0x138, 0x10, 0x501, 0x0, 0x0, {{@in6=@mcast2, @in6=@mcast2}, {@in, 0x0, 0x6c}, @in6=@dev, {}, {}, {}, 0x0, 0x0, 0x2}, [@algo_comp={0x48, 0x3, {{'deflate\x00'}}}]}, 0x138}}, 0x0) 02:21:32 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x6558) 02:21:32 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000000100001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:32 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1200, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 885.779205][T15707] batman_adv: Cannot find parent device [ 885.798714][T15707] batman_adv: batadv0: Adding interface: gretap770 [ 885.812110][T15707] batman_adv: batadv0: The MTU of interface gretap770 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 885.865777][T15707] batman_adv: batadv0: Not using interface gretap770 (retrying later): interface not active [ 885.883297][T15708] netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. 02:21:32 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}}}}, 0x100c) 02:21:32 executing program 1: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000840)=@newsa={0x138, 0x10, 0x501, 0x0, 0x0, {{@in6=@mcast2, @in6=@mcast2}, {@in, 0x0, 0x6c}, @in6=@dev, {}, {}, {}, 0x0, 0x0, 0x2}, [@algo_comp={0x48, 0x3, {{'deflate\x00'}}}]}, 0x138}}, 0x0) 02:21:32 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1a02, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 885.960189][ T27] audit: type=1800 audit(1589682092.768:173): pid=15677 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=16358 res=0 02:21:32 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000002000001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:32 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x8100) 02:21:32 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 02:21:32 executing program 1: ioctl$sock_SIOCADDDLCI(0xffffffffffffffff, 0x8980, 0x0) pipe(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x88202, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000100)={'syzkaller1\x00', 0xa732}) r3 = socket$packet(0x11, 0x2, 0x300) sendmmsg(0xffffffffffffffff, &(0x7f0000008200)=[{{0x0, 0x0, &(0x7f0000006a80)=[{&(0x7f0000005800)="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", 0x951}], 0x1}}, {{0x0, 0x0, &(0x7f0000007fc0)=[{&(0x7f0000006fc0)="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", 0x191}], 0x1}}], 0x2, 0x0) setsockopt$packet_fanout(r3, 0x107, 0x12, &(0x7f0000000100), 0x4) r4 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$binfmt_misc(r1, &(0x7f0000000140)=ANY=[], 0x1000000c8) splice(r0, 0x0, r2, 0x0, 0x10005, 0x0) [ 886.133231][T15739] netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. [ 886.177756][T15740] batman_adv: Cannot find parent device [ 886.204255][T15740] batman_adv: batadv0: Adding interface: gretap771 02:21:33 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000000003001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 886.218554][T15740] batman_adv: batadv0: The MTU of interface gretap771 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 886.304653][T15740] batman_adv: batadv0: Not using interface gretap771 (retrying later): interface not active 02:21:33 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xc005) [ 886.474913][T15755] netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. 02:21:33 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000000009001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:33 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1f00, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:33 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xc505) [ 886.707047][T15789] batman_adv: Cannot find parent device [ 886.730298][T15789] batman_adv: batadv0: Adding interface: gretap772 [ 886.745848][T15789] batman_adv: batadv0: The MTU of interface gretap772 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. [ 886.772848][T15789] batman_adv: batadv0: Not using interface gretap772 (retrying later): interface not active [ 886.787722][T15787] netlink: 48 bytes leftover after parsing attributes in process `syz-executor.4'. [ 886.822524][T15787] netlink: 5 bytes leftover after parsing attributes in process `syz-executor.4'. 02:21:33 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8}}}}, 0x100c) 02:21:33 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xcd05) 02:21:33 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000340)={@val={0x0, 0x19}, @void, @mpls={[{0x401, 0x0, 0x1}], @ipv4=@dccp={{0x29, 0x4, 0x0, 0x6, 0x18b, 0x67, 0x0, 0x5, 0x21, 0x0, @private=0xa010101, @private=0xa010101, {[@timestamp_addr={0x44, 0x44, 0xf0, 0x1, 0x0, [{@remote, 0x6}, {@remote, 0x6}, {@private=0xa010102}, {@empty, 0x4}, {@remote, 0x9}, {@broadcast, 0x818}, {@rand_addr=0x64010102, 0x7}, {@private=0xa010101, 0x4}]}, @end, @ssrr={0x89, 0xb, 0x20, [@remote, @dev={0xac, 0x14, 0x14, 0x2e}]}, @ssrr={0x89, 0x13, 0xda, [@multicast1, @local, @initdev={0xac, 0x1e, 0x0, 0x0}, @multicast2]}, @ssrr={0x89, 0xf, 0xe2, [@initdev={0xac, 0x1e, 0x0, 0x0}, @dev={0xac, 0x14, 0x14, 0x2e}, @initdev={0xac, 0x1e, 0x1, 0x0}]}, @noop, @lsrr={0x83, 0x1b, 0xc, [@remote, @multicast2, @initdev={0xac, 0x1e, 0x1, 0x0}, @loopback, @initdev={0xac, 0x1e, 0x0, 0x0}, @multicast1]}, @end]}}, {{0x4e23, 0x4e24, 0x4, 0x1, 0x5, 0x0, 0x0, 0x4, 0x2, "2c62bc", 0x75, "146aa7"}, "ea72bec5a1bf34a7a55529d938079636a9f6a0bc3028c0db627d85f86c9a720a93a7e81740511e9de5dd4e1138b6eae97f66c8c8a7d24670b99d40358543c5c80483706f94b163a7aaa6c50ff75758f658d31e7db81759fa18bd49d48d570702bd1284295b4978ccb270fbf3376d80320a59f916c12b199388b1ca0c616e1115c73437d69c0a729d720dcc7cf8744543d3d48e1cb4ada63909624a062715a27cb33795859f30610f1438cedc17eaf366bdb47a4164cb13efa84dcdbec56cf81aa7f8d084cece5c4cfbba1818ebb7a20952a8124e2ef5b6"}}}}, 0x193) 02:21:33 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00020000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:33 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x2000, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:34 executing program 1: pipe(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = socket$inet_udp(0x2, 0x2, 0x0) close(r2) socket$inet(0x10, 0x8000000002, 0x6) sendmsg(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000080)=[{&(0x7f0000000000)="4c0000001200ff09", 0x8}], 0x1}, 0x0) write$binfmt_misc(r1, &(0x7f0000000000)=ANY=[], 0xfffffecc) splice(r0, 0x0, r2, 0x0, 0x4ffe0, 0x0) [ 887.198500][T15822] batman_adv: Cannot find parent device [ 887.211446][T15822] batman_adv: batadv0: Adding interface: gretap773 02:21:34 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xd705) [ 887.232240][T15822] batman_adv: batadv0: The MTU of interface gretap773 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. [ 887.331264][T15840] netlink: 60 bytes leftover after parsing attributes in process `syz-executor.1'. [ 887.340051][T15822] batman_adv: batadv0: Not using interface gretap773 (retrying later): interface not active 02:21:34 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf305) 02:21:34 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x2086, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:34 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf505) 02:21:34 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf705) [ 887.683888][T15858] batman_adv: Cannot find parent device 02:21:34 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00030000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 887.734689][T15858] batman_adv: batadv0: Adding interface: gretap774 [ 887.744335][T15858] batman_adv: batadv0: The MTU of interface gretap774 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 887.820864][T15858] batman_adv: batadv0: Not using interface gretap774 (retrying later): interface not active 02:21:34 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9}}}}, 0x100c) 02:21:34 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xfeff) 02:21:34 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00040000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:34 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x380c, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:34 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000140)='l2tp\x00') sendmsg$L2TP_CMD_TUNNEL_CREATE(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000840)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="17090000000000000000010000000500070000000000080009000000000014001f0000000000000000000000ffffac141442060002000000000006000200010000001400200000000000000000000000ffffac1414bb"], 0x5c}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_GET(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000100)={&(0x7f0000000580)=ANY=[@ANYBLOB="20555392d1dd46f8bf000000", @ANYRES16=r2, @ANYBLOB="000427bd7000fddbdf25040000000c001000fbffffffffffffff"], 0x20}, 0x1, 0x0, 0x0, 0x50}, 0x400a0) r3 = openat$cgroup_ro(0xffffffffffffffff, &(0x7f0000000500)='pids.current\x00', 0x0, 0x0) renameat2(r1, &(0x7f00000004c0)='./file0\x00', r3, &(0x7f0000000540)='./file0\x00', 0x3) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r4 = openat$dlm_plock(0xffffffffffffff9c, &(0x7f0000000400)='/dev/dlm_plock\x00', 0x200, 0x0) ioctl$DRM_IOCTL_AUTH_MAGIC(r4, 0x40046411, &(0x7f0000000440)=0x9) r5 = openat$tun(0xffffffffffffff9c, &(0x7f00000005c0)='/dev/net/tun\x00', 0x42aa81, 0x0) ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000040)={'macvlan0\x00', 0x200}) r6 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) syz_open_dev$dri(&(0x7f0000000480)='/dev/dri/card#\x00', 0x1, 0x4300) ioctl$BLKTRACETEARDOWN(r6, 0x1276, 0x0) r7 = openat$cgroup_ro(r6, &(0x7f0000000280)='cpuacct.usage_sys\x00', 0x0, 0x0) ioctl$DRM_IOCTL_AGP_INFO(r7, 0x80386433, &(0x7f00000002c0)=""/133) ioctl$sock_inet_SIOCSIFADDR(0xffffffffffffffff, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$RDMA_USER_CM_CMD_CREATE_ID(r7, &(0x7f00000003c0)={0x0, 0x18, 0xfa00, {0x1, &(0x7f0000000380), 0x13f, 0x2}}, 0x20) write$tun(r5, &(0x7f00000001c0)=ANY=[@ANYBLOB="03000000000000000000450000280000000000069078ac141408ac1408bb0d0090780000000000000000000000000000000077dfd92006b80973fef2d731df571e65c3a30d3c43547c80e9ab2aa1848ef485b51501c9bc2ef2238acf98ac79ecb8bce169ef17"], 0x32) 02:21:34 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xff0f) 02:21:34 executing program 1: r0 = socket$nl_rdma(0x10, 0x3, 0x14) sendmsg$RDMA_NLDEV_CMD_PORT_GET(r0, &(0x7f0000000040)={0x0, 0xfffffffffffffff9, &(0x7f00000000c0)={&(0x7f0000000000)={0x20, 0x1409, 0x1, 0x0, 0x0, "", [{{0x8}, {0x8}}]}, 0x20}}, 0x0) [ 888.226117][T15907] batman_adv: Cannot find parent device 02:21:35 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xfffe) 02:21:35 executing program 1: r0 = socket$can_bcm(0x1d, 0x2, 0x2) connect$can_bcm(r0, &(0x7f0000001ff0), 0x10) sendmsg$can_bcm(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x5, 0x0, 0x0, {0x77359400}, {0x77359400}, {}, 0x8, @can={{}, 0x0, 0x0, 0x0, 0x0, "e96c4216eee2b675"}}, 0x38}, 0x300}, 0x0) [ 888.267023][T15907] batman_adv: batadv0: Adding interface: gretap775 [ 888.296351][T15907] batman_adv: batadv0: The MTU of interface gretap775 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. [ 888.370570][T15907] batman_adv: batadv0: Not using interface gretap775 (retrying later): interface not active 02:21:35 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000180)=ANY=[@ANYBLOB="03000000000000000000450000630000000000069078ac141400ac1408bb0400907800000000410a00ff0065000220890007ac1414aae0000002442c5d73ffffffff000000040a0101010000000300000000000000010a010100000009c17f0000010000008089032701f7c9b55a120b9fd3edb1d95dc1b00abb4b41a5d7a05a57719bf5657e8a74ae1eaae206643658ccd4c100262482b680a135a1c3da79715795bcaa3b08633d03f138e1598c4fd8b05534b8388855172b871487d36e54d01783fef3ee928bcd8b8fbc94800e7ca3f7e31caca4a65d1954e6ae07655c37cb0f3715349848ce5c0782dec367d77730236f8e328f"], 0x6d) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000080)='/dev/dlm-monitor\x00', 0x101000, 0x0) ioctl$TIOCGPTPEER(r4, 0x5441, 0x9) 02:21:35 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x34000) 02:21:35 executing program 1: r0 = socket$can_bcm(0x1d, 0x2, 0x2) connect$can_bcm(r0, &(0x7f0000001ff0), 0x10) sendmsg$can_bcm(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x5, 0x0, 0x0, {}, {}, {}, 0x1, @can={{}, 0x0, 0x0, 0x0, 0x0, "6d26402ca7b5189c"}}, 0x48}}, 0x0) sendmsg$can_bcm(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x5, 0x0, 0x0, {0x77359400}, {0x77359400}, {0x0, 0x0, 0x0, 0x1}, 0x1, @can={{}, 0x0, 0x0, 0x0, 0x0, "01804216eee2b675"}}, 0x48}}, 0x0) 02:21:35 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00050000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:35 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x390c, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:35 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa}}}}, 0x100c) 02:21:35 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x400300) [ 888.805056][T15960] batman_adv: Cannot find parent device [ 888.837511][T15960] batman_adv: batadv0: Adding interface: gretap776 [ 888.851993][T15960] batman_adv: batadv0: The MTU of interface gretap776 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 888.908435][T15960] batman_adv: batadv0: Not using interface gretap776 (retrying later): interface not active 02:21:35 executing program 1: r0 = creat(&(0x7f0000000040)='./bus\x00', 0x0) ioctl$EXT4_IOC_SETFLAGS(r0, 0x40086602, &(0x7f00000001c0)) write$binfmt_elf64(r0, &(0x7f0000000240)=ANY=[], 0x1) fallocate(r0, 0x3, 0x0, 0x800003) 02:21:35 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x1000000) 02:21:35 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc05000500020000000500010007"], 0x54}}, 0x0) 02:21:35 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3c00, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:36 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00060000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:36 executing program 5: socket$inet_icmp_raw(0x2, 0x3, 0x1) socket$inet6_sctp(0xa, 0x1, 0x84) r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0xde0) ioctl$TIOCSSOFTCAR(0xffffffffffffffff, 0x541a, &(0x7f0000000180)=0xc57) ioctl$TIOCMGET(r1, 0x5415, &(0x7f00000000c0)) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x80001d00c0d0) setsockopt$SO_BINDTODEVICE_wg(0xffffffffffffffff, 0x1, 0x19, &(0x7f00000001c0)='wg2\x00', 0x4) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r4 = socket$netlink(0x10, 0x3, 0x10) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r3, &(0x7f0000000240)=ANY=[@ANYBLOB="0300000000d940f200a2530002240000000000069078ac141400ac1408bb0d00907800000000000000000000000000000a00"], 0x100c) fcntl$setflags(r3, 0x2, 0x1) 02:21:36 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe}}}}, 0x100c) 02:21:36 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc05000500020000000500010007"], 0x54}}, 0x0) 02:21:36 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x2000000) [ 889.313073][T16002] batman_adv: Cannot find parent device [ 889.358231][T16002] batman_adv: batadv0: Adding interface: gretap777 [ 889.396089][T16002] batman_adv: batadv0: The MTU of interface gretap777 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:21:36 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc05000500020000000500010007"], 0x54}}, 0x0) [ 889.471130][T16002] batman_adv: batadv0: Not using interface gretap777 (retrying later): interface not active 02:21:36 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x3000000) 02:21:36 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x3f00, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:36 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc05000500020000000500010007"], 0x54}}, 0x0) 02:21:36 executing program 1: sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc05000500020000000500010007"], 0x54}}, 0x0) 02:21:36 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00070000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:36 executing program 1: sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc05000500020000000500010007"], 0x54}}, 0x0) [ 889.883206][T16040] batman_adv: Cannot find parent device [ 889.914934][T16040] batman_adv: batadv0: Adding interface: gretap778 [ 889.929501][T16040] batman_adv: batadv0: The MTU of interface gretap778 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. 02:21:36 executing program 1: sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc05000500020000000500010007"], 0x54}}, 0x0) [ 890.022674][T16040] batman_adv: batadv0: Not using interface gretap778 (retrying later): interface not active 02:21:37 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10}}}}, 0x100c) 02:21:37 executing program 1: socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc05000500020000000500010007"], 0x54}}, 0x0) 02:21:37 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x4000000) 02:21:37 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x4000, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:37 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000a0000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:37 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) sendmsg$IPVS_CMD_NEW_DAEMON(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x44, 0x0, 0x1, 0x0, 0x0, {}, [@IPVS_CMD_ATTR_DAEMON={0x30, 0x3, 0x0, 0x1, [@IPVS_DAEMON_ATTR_STATE={0x8, 0x1, 0x1}, @IPVS_DAEMON_ATTR_MCAST_IFN={0x14, 0x2, 'ipvlan0\x00'}, @IPVS_DAEMON_ATTR_SYNC_ID={0x8}, @IPVS_DAEMON_ATTR_SYNC_MAXLEN={0x6, 0x4, 0x5}]}]}, 0x44}}, 0x0) sendmsg$IPVS_CMD_SET_DEST(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000001c0)={&(0x7f00000002c0)={0x14c, 0x0, 0x300, 0x70bd2d, 0x25dfdbfc, {}, [@IPVS_CMD_ATTR_TIMEOUT_UDP={0x8, 0x6, 0x200}, @IPVS_CMD_ATTR_DAEMON={0x30, 0x3, 0x0, 0x1, [@IPVS_DAEMON_ATTR_STATE={0x8}, @IPVS_DAEMON_ATTR_MCAST_IFN={0x14, 0x2, 'team_slave_1\x00'}, @IPVS_DAEMON_ATTR_MCAST_TTL={0x5, 0x8, 0x4}, @IPVS_DAEMON_ATTR_SYNC_ID={0x8, 0x3, 0x4}]}, @IPVS_CMD_ATTR_DEST={0x18, 0x2, 0x0, 0x1, [@IPVS_DEST_ATTR_ADDR={0x14, 0x1, @ipv4=@loopback}]}, @IPVS_CMD_ATTR_SERVICE={0x4}, @IPVS_CMD_ATTR_TIMEOUT_TCP={0x8, 0x4, 0x876}, @IPVS_CMD_ATTR_DAEMON={0x64, 0x3, 0x0, 0x1, [@IPVS_DAEMON_ATTR_MCAST_IFN={0x14}, @IPVS_DAEMON_ATTR_MCAST_PORT={0x6, 0x7, 0x4e21}, @IPVS_DAEMON_ATTR_SYNC_MAXLEN={0x6, 0x4, 0x9}, @IPVS_DAEMON_ATTR_SYNC_MAXLEN={0x6, 0x4, 0x6}, @IPVS_DAEMON_ATTR_MCAST_PORT={0x6, 0x7, 0x4e23}, @IPVS_DAEMON_ATTR_SYNC_ID={0x8}, @IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @mcast2}, @IPVS_DAEMON_ATTR_MCAST_TTL={0x5, 0x8, 0x9d}, @IPVS_DAEMON_ATTR_MCAST_GROUP={0x8, 0x5, @rand_addr=0x64010102}]}, @IPVS_CMD_ATTR_DAEMON={0x24, 0x3, 0x0, 0x1, [@IPVS_DAEMON_ATTR_MCAST_PORT={0x6, 0x7, 0x4e23}, @IPVS_DAEMON_ATTR_SYNC_ID={0x8, 0x3, 0x2}, @IPVS_DAEMON_ATTR_SYNC_ID={0x8, 0x3, 0x1}, @IPVS_DAEMON_ATTR_SYNC_MAXLEN={0x6}]}, @IPVS_CMD_ATTR_TIMEOUT_UDP={0x8, 0x6, 0x10001}, @IPVS_CMD_ATTR_SERVICE={0x4c, 0x1, 0x0, 0x1, [@IPVS_SVC_ATTR_PE_NAME={0x8, 0xb, 'sip\x00'}, @IPVS_SVC_ATTR_PROTOCOL={0x6, 0x2, 0x87}, @IPVS_SVC_ATTR_ADDR={0x14, 0x3, @ipv4=@empty}, @IPVS_SVC_ATTR_SCHED_NAME={0xa, 0x6, 'lblcr\x00'}, @IPVS_SVC_ATTR_NETMASK={0x8, 0x9, 0x65}, @IPVS_SVC_ATTR_PE_NAME={0x8, 0xb, 'sip\x00'}, @IPVS_SVC_ATTR_AF={0x6, 0x1, 0xa}]}]}, 0x14c}, 0x1, 0x0, 0x0, 0x20000804}, 0x800) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r4 = socket$inet6(0xa, 0x5, 0x0) close(r4) r5 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r5, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r4, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r4, r5, 0x0, 0x80001d00c0d0) r6 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r6, 0x1276, 0x0) fsync(r6) write$P9_RWALK(r5, &(0x7f0000000080)={0x71, 0x6f, 0x1, {0x8, [{0x10, 0x0, 0x5}, {0x72, 0x3, 0x6}, {0x2, 0x0, 0x5}, {0x80, 0x3, 0x6}, {0x1, 0x1, 0x5}, {0x2, 0x0, 0x5}, {0x8, 0x4, 0x2}, {0x0, 0x3, 0x1}]}}, 0x71) write$tun(r2, &(0x7f0000000440)=ANY=[@ANYBLOB="03000000000000000000480002240000000000069078ac141400ac1408bb0d0090780031927ef50000000000000000000000c81657be237425b9403a7f331c8fc8673f17c27169573b991812b7191bda2058a4b3ca0004d06a7e8c354f0e665dd4164d2a"], 0x100c) 02:21:37 executing program 1: socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc05000500020000000500010007"], 0x54}}, 0x0) 02:21:37 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x5000000) [ 890.475963][T16086] batman_adv: Cannot find parent device [ 890.502334][T16086] batman_adv: batadv0: Adding interface: gretap779 [ 890.518071][T16086] batman_adv: batadv0: The MTU of interface gretap779 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:21:37 executing program 1: socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc05000500020000000500010007"], 0x54}}, 0x0) [ 890.597107][T16086] batman_adv: batadv0: Not using interface gretap779 (retrying later): interface not active 02:21:37 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x6000000) 02:21:37 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x4800, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:37 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, 0x0, 0x0) [ 891.119917][T16121] batman_adv: Cannot find parent device [ 891.128674][T16121] batman_adv: batadv0: Adding interface: gretap780 [ 891.135962][T16121] batman_adv: batadv0: The MTU of interface gretap780 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. 02:21:38 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000c0000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:38 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, 0x0, 0x0) 02:21:38 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x11}}}}, 0x100c) 02:21:38 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x7000000) [ 891.162465][T16121] batman_adv: batadv0: Not using interface gretap780 (retrying later): interface not active [ 891.186980][ T27] audit: type=1800 audit(1589682097.998:174): pid=16096 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=16369 res=0 02:21:38 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x4a00, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 891.406470][T16147] batman_adv: Cannot find parent device [ 891.416025][T16147] batman_adv: batadv0: Adding interface: gretap781 [ 891.423150][T16147] batman_adv: batadv0: The MTU of interface gretap781 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. [ 891.464431][T16147] batman_adv: batadv0: Not using interface gretap781 (retrying later): interface not active 02:21:38 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, 0x0, 0x0) 02:21:38 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xa000000) 02:21:38 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup3(0xffffffffffffffff, 0xffffffffffffffff, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(0xffffffffffffffff, 0x84, 0x64, &(0x7f0000000040)=[@in={0x2, 0x4e20, @empty}], 0x10) sendto$inet(r1, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(0xffffffffffffffff, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x1d, &(0x7f000025e000)={0x2, [0x0, 0x0]}, &(0x7f0000a8a000)=0xc) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(r1, 0x84, 0x6c, &(0x7f000059aff8)={r2}, &(0x7f000034f000)=0x2059b000) getsockopt$inet_sctp_SCTP_SOCKOPT_PEELOFF(0xffffffffffffffff, 0x84, 0x66, &(0x7f0000000240)={r2, 0x7ff}, &(0x7f0000000280)=0x8) r3 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCX25GFACILITIES(r3, 0x89e2, &(0x7f0000000100)) r4 = add_key$keyring(0x0, &(0x7f0000000180)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffe) keyctl$setperm(0x5, r4, 0x202002) keyctl$set_timeout(0xf, r4, 0x3) r5 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r5, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r6 = socket$netlink(0x10, 0x3, 0x0) modify_ldt$write(0x1, &(0x7f00000001c0)={0x4, 0xffffffffffffffff, 0x400, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1}, 0x10) ioctl$sock_inet_SIOCSIFADDR(r6, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r5, &(0x7f0000000080)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x13, 0x4, 0x0, 0x0, 0x60, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}, {[@timestamp_addr={0x44, 0x1c, 0x24, 0x1, 0x1, [{@empty, 0x5}, {@empty, 0x3f}, {@private=0xa010102, 0x7fffffff}]}, @generic={0x89, 0x7, "4912775276"}, @lsrr={0x83, 0x13, 0x4b, [@initdev={0xac, 0x1e, 0x0, 0x0}, @multicast2, @local, @broadcast]}]}}, @timestamp}}}, 0x6a) 02:21:38 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000e0000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:38 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, 0x0}, 0x0) 02:21:38 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x4c00, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:38 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, 0x0}, 0x0) 02:21:38 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xc000000) [ 891.772443][T16176] batman_adv: Cannot find parent device [ 891.794521][T16176] batman_adv: batadv0: Adding interface: gretap782 [ 891.823983][T16176] batman_adv: batadv0: The MTU of interface gretap782 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:21:38 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, 0x0}, 0x0) [ 891.919176][T16176] batman_adv: batadv0: Not using interface gretap782 (retrying later): interface not active 02:21:39 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x88}}}}, 0x100c) 02:21:39 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x5865, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:39 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x54}}, 0x0) 02:21:39 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xd060000) 02:21:39 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000f0000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:39 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000080)=ANY=[@ANYBLOB="0300000000000000ccb4998678555eeb5cffe680fa6cd4e20000480002240000000000069078ac141400ac1408bba475907800"/66], 0x100c) 02:21:39 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x54}}, 0x0) [ 892.386600][T16214] batman_adv: Cannot find parent device 02:21:39 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x54}}, 0x0) [ 892.432222][T16214] batman_adv: batadv0: Adding interface: gretap783 [ 892.455079][T16214] batman_adv: batadv0: The MTU of interface gretap783 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. [ 892.507437][T16214] batman_adv: batadv0: Not using interface gretap783 (retrying later): interface not active 02:21:39 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[], 0x54}}, 0x0) 02:21:39 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xe000000) 02:21:39 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x5c03, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:39 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00100000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 892.875837][T16258] batman_adv: Cannot find parent device [ 892.918067][T16258] batman_adv: batadv0: Adding interface: gretap784 [ 892.949058][T16258] batman_adv: batadv0: The MTU of interface gretap784 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 892.995936][T16258] batman_adv: batadv0: Not using interface gretap784 (retrying later): interface not active 02:21:39 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1f4}}}}, 0x100c) 02:21:39 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[], 0x54}}, 0x0) 02:21:39 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf000000) 02:21:39 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000080)='/dev/zero\x00', 0x2900, 0x0) ioctl$KVM_GET_REG_LIST(r4, 0xc008aeb0, &(0x7f0000000200)=ANY=[@ANYBLOB="09000000000000fffe7fffffffffffff092000000000000000000000000000000008000000000000130d000000000000090000000000000005000000000000002000000000000000090000000000000026d0"]) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r5 = socket$inet6(0xa, 0x5, 0x0) close(r5) r6 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r6, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r5, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0xfffffffe}, 0x8) sendfile(r5, r6, 0x0, 0x80001d00c0d0) ioctl$sock_SIOCDELDLCI(r3, 0x8981, &(0x7f00000000c0)={'wg1\x00', 0x100}) write$tun(r6, &(0x7f00000001c0)=ANY=[@ANYRES32=0x0], 0x100c) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(0xffffffffffffffff, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x80001d00c0d0) setsockopt$sock_int(0xffffffffffffffff, 0x1, 0x23, &(0x7f0000000180)=0x1f, 0x4) 02:21:39 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x6000, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:39 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00480000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 893.224882][T16283] batman_adv: Cannot find parent device [ 893.250099][T16283] batman_adv: batadv0: Adding interface: gretap785 02:21:40 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[], 0x54}}, 0x0) [ 893.275578][T16283] batman_adv: batadv0: The MTU of interface gretap785 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:21:40 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB], 0x54}}, 0x0) [ 893.385707][T16283] batman_adv: batadv0: Not using interface gretap785 (retrying later): interface not active 02:21:40 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x6003, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:40 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="004c0000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:40 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB], 0x54}}, 0x0) 02:21:40 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x10000000) [ 893.789147][T16322] batman_adv: Cannot find parent device [ 893.818268][T16322] batman_adv: batadv0: Adding interface: gretap786 [ 893.832620][T16322] batman_adv: batadv0: The MTU of interface gretap786 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. [ 893.858831][T16322] batman_adv: batadv0: Not using interface gretap786 (retrying later): interface not active [ 893.971966][ T27] audit: type=1800 audit(1589682100.788:175): pid=16282 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=16366 res=0 02:21:40 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x240}}}}, 0x100c) 02:21:40 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB], 0x54}}, 0x0) 02:21:40 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00600000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:40 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x3f000000) 02:21:40 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x6558, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:40 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) clock_gettime(0x0, &(0x7f0000000080)={0x0, 0x0}) ioctl$VIDIOC_DQBUF(0xffffffffffffffff, 0xc0585611, &(0x7f00000000c0)={0x1f, 0x4, 0x4, 0x40000, 0x2, {r1, r2/1000+10000}, {0x3, 0x0, 0x81, 0xff, 0x2, 0x2, "27f81d02"}, 0x0, 0x4, @offset=0x1ff, 0x5, 0x0, 0xffffffffffffffff}) ioctl$RTC_RD_TIME(r3, 0x80247009, &(0x7f0000000180)) r4 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) r5 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r5, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r6 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r6, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r5, &(0x7f00000001c0)=ANY=[@ANYBLOB="03566546ffaa1050d3dd5692000000000000000000480002240900000000069078ac1414186b3e29bb0d00909300"/61], 0x100c) 02:21:40 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e6574000000000500040000"], 0x54}}, 0x0) 02:21:41 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x40000000) [ 894.160016][T16353] batman_adv: Cannot find parent device [ 894.190428][T16353] batman_adv: batadv0: Adding interface: gretap787 [ 894.205743][T16353] batman_adv: batadv0: The MTU of interface gretap787 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 894.237560][T16367] netlink: 40 bytes leftover after parsing attributes in process `syz-executor.1'. 02:21:41 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e6574000000000500040000"], 0x54}}, 0x0) [ 894.299182][T16353] batman_adv: batadv0: Not using interface gretap787 (retrying later): interface not active 02:21:41 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e6574000000000500040000"], 0x54}}, 0x0) [ 894.388840][T16387] netlink: 40 bytes leftover after parsing attributes in process `syz-executor.1'. [ 894.471548][T16391] netlink: 40 bytes leftover after parsing attributes in process `syz-executor.1'. 02:21:41 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c00078008"], 0x54}}, 0x0) [ 894.666445][T16405] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.1'. 02:21:41 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00680000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:41 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x300}}}}, 0x100c) 02:21:41 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x6800, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:41 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x60000000) 02:21:41 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$rtc(0xffffffffffffff9c, &(0x7f0000000040)='/dev/rtc0\x00', 0x0, 0x0) fcntl$setstatus(r2, 0x4, 0x72109c5fef5d34d3) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) r4 = socket$inet6(0xa, 0x1, 0x0) close(r4) r5 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r5, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r4, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r4, r5, 0x0, 0x80001d00c0d0) r6 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r6, 0x1276, 0x0) ppoll(&(0x7f0000000100)=[{r0, 0x1}, {r1, 0x8100}, {0xffffffffffffffff, 0x1846}, {0xffffffffffffffff, 0x104}, {0xffffffffffffffff, 0x4000}, {r4, 0x4210}, {r6, 0x2}], 0x7, &(0x7f0000000180)={0x77359400}, &(0x7f00000001c0)={[0xbd2]}, 0x8) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) socket$netlink(0x10, 0x3, 0x0) ioctl$SNDCTL_DSP_GETOPTR(r1, 0x800c5012, &(0x7f0000000080)) write$tun(r3, &(0x7f0000000240)=ANY=[@ANYBLOB="0000000000000000004800022400"/34], 0x100c) 02:21:41 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c00078008"], 0x54}}, 0x0) 02:21:41 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="006c0000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:41 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x65580000) [ 894.921169][T16421] batman_adv: Cannot find parent device [ 894.937060][T16426] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.1'. [ 894.941280][T16421] batman_adv: batadv0: Adding interface: gretap788 02:21:41 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c00078008"], 0x54}}, 0x0) [ 894.981201][T16421] batman_adv: batadv0: The MTU of interface gretap788 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. [ 895.120993][T16421] batman_adv: batadv0: Not using interface gretap788 (retrying later): interface not active [ 895.126793][T16446] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.1'. 02:21:42 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc050005"], 0x54}}, 0x0) [ 895.323901][T16460] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. 02:21:42 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc050005"], 0x54}}, 0x0) 02:21:42 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3e8}}}}, 0x100c) 02:21:42 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00740000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:42 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x6c00, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:42 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x81000000) [ 895.557403][T16482] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. 02:21:42 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x88a8ffff) [ 895.690377][T16489] batman_adv: Cannot find parent device 02:21:42 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc050005"], 0x54}}, 0x0) [ 895.749341][T16489] batman_adv: batadv0: Adding interface: gretap789 02:21:42 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x9effffff) 02:21:42 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) r3 = socket$inet6(0xa, 0x5, 0x0) close(r3) r4 = open(&(0x7f00000001c0)='./bus\x00', 0x341002, 0x165) ftruncate(r4, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r3, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r3, r4, 0x0, 0x80001d00c0d0) ioctl$TUNSETTXFILTER(0xffffffffffffffff, 0x400454d1, &(0x7f0000000180)=ANY=[@ANYRESHEX=r4]) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r5 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r5, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) openat$6lowpan_control(0xffffffffffffff9c, &(0x7f0000000100)='/sys/kernel/debug/bluetooth/6lowpan_control\x00', 0x2, 0x0) write$tun(r2, &(0x7f00000000c0)=ANY=[@ANYBLOB="0300000020000035030000001400925c92d5fc0000000000006b9e70000000000000000000000000000000000b00005db79e207e170000000000"], 0x100c) ioctl$VIDIOC_S_SELECTION(r1, 0xc040565f, &(0x7f00000002c0)={0x5, 0x102, 0x4, {0x4, 0x4, 0x7, 0x4007}}) r6 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r6, 0x1276, 0x0) recvfrom$rose(r6, &(0x7f0000000200)=""/177, 0xb1, 0x40, &(0x7f0000000080)=@full={0xb, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, 0x3, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}]}, 0x40) [ 895.785043][T16489] batman_adv: batadv0: The MTU of interface gretap789 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. [ 895.837204][T16500] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. 02:21:42 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc0500050002000000"], 0x54}}, 0x0) [ 895.881164][T16489] batman_adv: batadv0: Not using interface gretap789 (retrying later): interface not active 02:21:42 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="007a0000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:42 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x6c03, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:42 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xc0050000) [ 896.022026][T16516] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. [ 896.256268][T16521] batman_adv: Cannot find parent device [ 896.275889][T16521] batman_adv: batadv0: Adding interface: gretap790 [ 896.289088][T16521] batman_adv: batadv0: The MTU of interface gretap790 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 896.343214][T16521] batman_adv: batadv0: Not using interface gretap790 (retrying later): interface not active 02:21:43 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc0500050002000000"], 0x54}}, 0x0) 02:21:43 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600}}}}, 0x100c) 02:21:43 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xc5050000) 02:21:43 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x7400, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:43 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xcd050000) 02:21:43 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc0500050002000000"], 0x54}}, 0x0) 02:21:43 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000300000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 896.787474][T16550] batman_adv: Cannot find parent device [ 896.797976][T16550] batman_adv: batadv0: Adding interface: gretap791 [ 896.814998][T16550] batman_adv: batadv0: The MTU of interface gretap791 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 896.864827][T16550] batman_adv: batadv0: Not using interface gretap791 (retrying later): interface not active 02:21:43 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$sock_FIOGETOWN(r1, 0x8903, &(0x7f0000000080)=0x0) fcntl$lock(r0, 0x24, &(0x7f00000000c0)={0x0, 0x0, 0x10001, 0x4, r2}) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r4 = socket$netlink(0x10, 0x3, 0x0) ioctl$USBDEVFS_CLAIM_PORT(r1, 0x80045518, &(0x7f0000000100)=0x7fffffff) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r3, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:21:43 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xd7050000) 02:21:43 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc0500050002000000050001"], 0x54}}, 0x0) 02:21:43 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00c40300000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:43 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc0500050002000000050001"], 0x54}}, 0x0) 02:21:43 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x7a00, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:43 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf0ffffff) 02:21:43 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x700}}}}, 0x100c) 02:21:44 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc0500050002000000050001"], 0x54}}, 0x0) 02:21:44 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf3050000) [ 897.306775][T16602] batman_adv: Cannot find parent device [ 897.343297][T16602] batman_adv: batadv0: Adding interface: gretap792 02:21:44 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc050005000200000005000100"], 0x54}}, 0x0) [ 897.359002][T16602] batman_adv: batadv0: The MTU of interface gretap792 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 897.428568][T16602] batman_adv: batadv0: Not using interface gretap792 (retrying later): interface not active 02:21:44 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf5050000) 02:21:44 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000080)=ANY=[@ANYBLOB="03000000000000000000480002240000000000069078ac141400ac1408bb0d00907800000000000000000c00000000000000786ac29e585e5b088b19ee81be21e82897f06eab0cc45a4dcd5a8888f72f5f96b3b7e1628f88d972cddbc20c187f611f776b7cbb4f4543664619fea83272331d56405adf2d3b8d93f843a509e2ec3c30367ae74035efaf1b5597145a1dc888a20212600c"], 0x100c) 02:21:44 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc050005000200000005000100"], 0x54}}, 0x0) 02:21:44 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x8100, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:44 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000500000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:44 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf7050000) 02:21:44 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x900}}}}, 0x100c) 02:21:44 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="54000000060601000000000000000001000000000d000300686173683a6e65740000000005000400000000000900020073797a30000000000c000780080012407ffffefc050005000200000005000100"], 0x54}}, 0x0) 02:21:44 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xfeff0000) [ 898.066333][T16653] batman_adv: Cannot find parent device [ 898.081383][T16653] batman_adv: batadv0: Adding interface: gretap793 [ 898.088942][T16653] batman_adv: batadv0: The MTU of interface gretap793 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. 02:21:44 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000200)={'geneve1\x00'}) sendmsg$AUDIT_DEL_RULE(r0, &(0x7f00000001c0)={&(0x7f00000000c0), 0xc, &(0x7f0000000180)={&(0x7f0000000300)=ANY=[@ANYBLOB="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"], 0x444}, 0x1, 0x0, 0x0, 0x4000000}, 0x41) r1 = syz_open_procfs(0x0, &(0x7f0000000100)='syscall\x00') r2 = socket$nl_route(0x10, 0x3, 0x0) ioctl$EVIOCGID(r1, 0x80084502, &(0x7f0000000840)=""/137) r3 = socket(0x1, 0x803, 0x0) fcntl$getflags(r1, 0x401) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) r5 = socket$inet6_tcp(0xa, 0x1, 0x0) r6 = dup2(r5, r5) setsockopt$inet_group_source_req(r6, 0x0, 0x2e, &(0x7f00000001c0)={0x7fff, {{0x2, 0x0, @multicast1=0xe0000600}}, {{0x2, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}}}}, 0x108) r7 = dup2(r4, r6) r8 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000280)='nl80211\x00') r9 = open(&(0x7f0000000040)='./bus\x00', 0x17e, 0x0) write$binfmt_aout(r9, &(0x7f0000000540)=ANY=[], 0x10) sendfile(r9, r9, &(0x7f00000001c0), 0x8080fffffffe) sendmsg$NL80211_CMD_GET_REG(r6, &(0x7f0000000900)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000800)={&(0x7f0000000a00)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=r8, @ANYRES64, @ANYRESOCT=r6, @ANYRES32=r7, @ANYRESHEX=r9, @ANYRES16, @ANYRES64], 0x4c}, 0x1, 0x0, 0x0, 0x4040}, 0x4014) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x50, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x28, 0x12, 0x0, 0x1, @ipip6={{0xb, 0x1, 'ip6tnl\x00'}, {0x18, 0x2, 0x0, 0x1, [@IFLA_IPTUN_REMOTE={0x14, 0x2, @rand_addr=' \x01\x00'}]}}}, @IFLA_MASTER={0x8, 0x3, r10}]}, 0x50}, 0x1, 0x0, 0x0, 0x20000000}, 0x0) [ 898.158781][T16653] batman_adv: batadv0: Not using interface gretap793 (retrying later): interface not active 02:21:45 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xff0f0000) 02:21:45 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000600000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:45 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x8d01, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:45 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xffffa888) 02:21:45 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$TIOCSISO7816(0xffffffffffffffff, 0xc0285443, &(0x7f0000000180)={0x6, 0x3b4, 0x3, 0x6, 0x4}) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) getpeername$llc(r4, &(0x7f0000000080)={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @multicast}, &(0x7f00000000c0)=0x10) setsockopt$TIPC_DEST_DROPPABLE(0xffffffffffffffff, 0x10f, 0x81, &(0x7f00000002c0)=0xba78, 0x4) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) socket$l2tp6(0xa, 0x2, 0x73) r5 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r5, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) r6 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r6, 0x1276, 0x0) ioctl$SNDRV_SEQ_IOCTL_SET_QUEUE_INFO(r6, 0xc08c5335, &(0x7f0000000380)={0x7, 0x7fff, 0x0, 'queue1\x00', 0xf8}) write$tun(r5, &(0x7f00000001c0)={@val={0x0, 0x201}, @void, @mpls={[], @ipv4=@icmp={{0x5, 0x4, 0x0, 0x0, 0x4e, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @parameter_prob={0xc, 0x0, 0x0, 0x5, 0x4e, 0x0, {0xb, 0x4, 0x2, 0x7, 0x1, 0x67, 0x601, 0xe2, 0x16, 0x3, @multicast2, @remote, {[@timestamp={0x44, 0x18, 0x94, 0x0, 0x4, [0x2, 0x1000, 0xa76, 0x6, 0x401]}]}}, "3a9b9d60b602"}}}}, 0x52) bind$vsock_stream(r4, &(0x7f0000000100)={0x28, 0x0, 0xffffffff, @local}, 0x10) [ 898.582714][T16701] batman_adv: Cannot find parent device [ 898.616309][T16701] batman_adv: batadv0: Adding interface: gretap794 [ 898.651850][T16701] batman_adv: batadv0: The MTU of interface gretap794 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. 02:21:45 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xffffff7f) [ 898.760863][T16701] batman_adv: batadv0: Not using interface gretap794 (retrying later): interface not active 02:21:45 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xac02, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:45 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa00}}}}, 0x100c) 02:21:45 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000700000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:45 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xffffff9e) 02:21:45 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xfffffff0) [ 899.117619][T16732] batman_adv: Cannot find parent device [ 899.151874][T16732] batman_adv: batadv0: Adding interface: gretap795 [ 899.174205][T16732] batman_adv: batadv0: The MTU of interface gretap795 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. [ 899.254218][T16732] batman_adv: batadv0: Not using interface gretap795 (retrying later): interface not active 02:21:46 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x40030000000000) 02:21:46 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000200)={'geneve1\x00'}) sendmsg$AUDIT_DEL_RULE(r0, &(0x7f00000001c0)={&(0x7f00000000c0), 0xc, &(0x7f0000000180)={&(0x7f0000000300)=ANY=[@ANYBLOB="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"], 0x444}, 0x1, 0x0, 0x0, 0x4000000}, 0x41) r1 = syz_open_procfs(0x0, &(0x7f0000000100)='syscall\x00') r2 = socket$nl_route(0x10, 0x3, 0x0) ioctl$EVIOCGID(r1, 0x80084502, &(0x7f0000000840)=""/137) r3 = socket(0x1, 0x803, 0x0) fcntl$getflags(r1, 0x401) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) r5 = socket$inet6_tcp(0xa, 0x1, 0x0) r6 = dup2(r5, r5) setsockopt$inet_group_source_req(r6, 0x0, 0x2e, &(0x7f00000001c0)={0x7fff, {{0x2, 0x0, @multicast1=0xe0000600}}, {{0x2, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}}}}, 0x108) r7 = dup2(r4, r6) r8 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000280)='nl80211\x00') r9 = open(&(0x7f0000000040)='./bus\x00', 0x17e, 0x0) write$binfmt_aout(r9, &(0x7f0000000540)=ANY=[], 0x10) sendfile(r9, r9, &(0x7f00000001c0), 0x8080fffffffe) sendmsg$NL80211_CMD_GET_REG(r6, &(0x7f0000000900)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000800)={&(0x7f0000000a00)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=r8, @ANYRES64, @ANYRESOCT=r6, @ANYRES32=r7, @ANYRESHEX=r9, @ANYRES16, @ANYRES64], 0x4c}, 0x1, 0x0, 0x0, 0x4040}, 0x4014) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x50, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x28, 0x12, 0x0, 0x1, @ipip6={{0xb, 0x1, 'ip6tnl\x00'}, {0x18, 0x2, 0x0, 0x1, [@IFLA_IPTUN_REMOTE={0x14, 0x2, @rand_addr=' \x01\x00'}]}}}, @IFLA_MASTER={0x8, 0x3, r10}]}, 0x50}, 0x1, 0x0, 0x0, 0x20000000}, 0x0) 02:21:46 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xb401, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:46 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xbb8}}}}, 0x100c) 02:21:46 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x100000000000000) 02:21:46 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) ioctl$USBDEVFS_CLAIM_PORT(0xffffffffffffffff, 0x80045518, &(0x7f0000000100)=0x3) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000080)=ANY=[@ANYBLOB="03000000000000000000480002240000000000069078ac141400ac1408bb0d00907800000000000000000000000000000000c3461390a6072119b14bd7d41a61effc616b0d7863a96b92e390b1"], 0x100c) 02:21:46 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000a00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 899.633686][T16781] batman_adv: Cannot find parent device [ 899.669266][T16781] batman_adv: batadv0: Adding interface: gretap796 [ 899.698625][T16781] batman_adv: batadv0: The MTU of interface gretap796 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. [ 899.786345][T16781] batman_adv: batadv0: Not using interface gretap796 (retrying later): interface not active 02:21:46 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x200000000000000) 02:21:47 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xb803, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:47 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) r2 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r2, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) recvfrom$l2tp(r2, &(0x7f0000000080)=""/180, 0xb4, 0x10042, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r4 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r3, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:21:47 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x1d7) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000400)=ANY=[@ANYBLOB="4800000010000507000000000000800000000000", @ANYRES32=r2, @ANYBLOB="0000000000020000280012000c00010076657468"], 0x48}}, 0x0) r3 = socket$xdp(0x2c, 0x3, 0x0) setsockopt$XDP_UMEM_REG(r3, 0x11b, 0x4, &(0x7f00000000c0)={&(0x7f0000000000)=""/5, 0x20000, 0x1000}, 0x18) setsockopt$XDP_UMEM_FILL_RING(r3, 0x11b, 0x5, &(0x7f00000004c0)=0x80, 0x4) setsockopt$XDP_TX_RING(r3, 0x11b, 0x3, &(0x7f0000000140)=0x2, 0x4) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0}, &(0x7f0000000240)=0x14) setsockopt$XDP_UMEM_COMPLETION_RING(r3, 0x11b, 0x6, &(0x7f00000001c0)=0x400, 0x4) bind$xdp(r3, &(0x7f0000000040)={0x2c, 0x0, r4}, 0x10) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r1, &(0x7f00000003c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000080)=0x14) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) sendmsg$nl_route(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000500)=@newlink={0x20, 0x11, 0x40d, 0x0, 0x0, {0x10, 0x0, 0x0, r6}}, 0x20}}, 0x0) 02:21:47 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000c00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 900.367413][T16828] batman_adv: Cannot find parent device [ 900.399768][T16828] batman_adv: batadv0: Adding interface: gretap797 [ 900.426827][T16828] batman_adv: batadv0: The MTU of interface gretap797 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 900.531431][T16828] batman_adv: batadv0: Not using interface gretap797 (retrying later): interface not active [ 900.583713][T16844] __nla_validate_parse: 2 callbacks suppressed [ 900.583726][T16844] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. 02:21:47 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe00}}}}, 0x100c) 02:21:47 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x300000000000000) 02:21:47 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xc203, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:47 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00370c00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:47 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r4, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) write$binfmt_elf64(r4, &(0x7f0000000180)={{0x7f, 0x45, 0x4c, 0x46, 0x9, 0x5b, 0x5, 0x8, 0xffff00000000, 0x2, 0x3e, 0x9, 0x3c4, 0x40, 0x107, 0xffff727c, 0x7, 0x38, 0x2, 0x6, 0x6, 0x3ff}, [{0x60000000, 0x1, 0x2d6, 0x1, 0x4c8d, 0x4, 0x3f, 0x10000}, {0x6474e551, 0x3, 0x10001, 0x8000, 0x2, 0x100000001, 0x8b, 0x1}], "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", [[], [], [], []]}, 0x5ab) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 02:21:47 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x400000000000000) [ 901.013730][T16880] batman_adv: Cannot find parent device [ 901.049610][T16880] batman_adv: batadv0: Adding interface: gretap798 [ 901.067178][T16880] batman_adv: batadv0: The MTU of interface gretap798 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. [ 901.121706][T16880] batman_adv: batadv0: Not using interface gretap798 (retrying later): interface not active [ 901.152247][T16850] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. 02:21:48 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xc403, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:48 executing program 1: clone(0x80000100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = gettid() wait4(0x0, 0x0, 0x80000002, 0x0) vmsplice(0xffffffffffffffff, &(0x7f0000000100)=[{&(0x7f0000000040)="0f34", 0x2}], 0x1, 0x0) bpf$BPF_BTF_LOAD(0x12, &(0x7f00000000c0)={0x0, 0x0, 0x15c}, 0x20) ptrace$setopts(0x4206, r0, 0x0, 0x0) process_vm_writev(0x0, &(0x7f0000000080)=[{0x0}, {0x0, 0x4}, {&(0x7f0000000000)=""/6, 0xffffffffffffff2c}], 0x3, 0x0, 0x0, 0x0) tkill(r0, 0x33) ptrace$setregs(0xd, r0, 0x0, &(0x7f0000000080)) ptrace$cont(0x7, r0, 0x0, 0x0) 02:21:48 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x500000000000000) 02:21:48 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00380c00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:48 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendmsg$TIPC_CMD_SET_LINK_TOL(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000080)={0x68, 0x0, 0x20, 0x70bd2b, 0x25dfdbfd, {{}, {}, {0x4c, 0x18, {0x5, @link='broadcast-link\x00'}}}, ["", "", "", "", "", "", "", ""]}, 0x68}, 0x1, 0x0, 0x0, 0x20041001}, 0x40090) sendmsg$TIPC_CMD_SHOW_PORTS(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x1c, 0x0, 0x200, 0x70bd26, 0x25dfdbff, {}, ["", "", "", "", "", "", "", "", ""]}, 0x1c}, 0x1, 0x0, 0x0, 0x20040000}, 0x10) clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = gettid() msgsnd(0x0, &(0x7f0000000140)={0x1, "42e0e43ecbc21b9cd962f685d0fb65116cbe035717275d063de00f0f7defe2c750f70aff00f921181a2e64f5c41217e4ef83167ed1adfbf1726fff02b1fc59689d8ddde73aa5a941c65bf2fc38c997a3b49c1a1cf527b725a66e53b246f4e6fd009d24c2f19d5896b9c261505abbef6e8b7f4d67ad300d265287c440dab4ec69bc74b2886492ac77e29ff8daaf2b7edcff56f036f60fde9f4761868ac63584fcd96e8a55f1faf4b5a078dace3eced2"}, 0xb7, 0x0) clone(0x8040000, 0x0, 0x0, 0x0, 0x0) socket$netlink(0x10, 0x3, 0x13) openat$cgroup(0xffffffffffffffff, 0x0, 0x200002, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = bpf$PROG_LOAD(0x5, 0x0, 0x0) bpf$BPF_PROG_ATTACH(0x8, &(0x7f0000000100)={0xffffffffffffffff, r1, 0x11}, 0x10) syz_genetlink_get_family_id$tipc(&(0x7f00000003c0)='TIPC\x00') ptrace(0x10, r0) wait4(0x0, 0x0, 0x0, 0x0) ioctl$VT_RESIZEX(0xffffffffffffffff, 0x560a, 0x0) 02:21:48 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x600000000000000) [ 901.540787][T16926] batman_adv: Cannot find parent device [ 901.581822][T16926] batman_adv: batadv0: Adding interface: gretap799 [ 901.631477][T16926] batman_adv: batadv0: The MTU of interface gretap799 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 901.660944][T16938] ptrace attach of "/root/syz-executor.1"[16934] was attempted by "/root/syz-executor.1"[16938] [ 901.721663][T16926] batman_adv: batadv0: Not using interface gretap799 (retrying later): interface not active 02:21:48 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1100}}}}, 0x100c) 02:21:48 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xce03, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:48 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f00000011c0)={@val={0x0, 0x800}, @val={0x3, 0x3, 0x0, 0x0, 0x0, 0x10}, @x25={0x1, 0x82, 0xfd, "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"}}, 0x1011) 02:21:48 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendmsg$TIPC_CMD_SET_LINK_TOL(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000080)={0x68, 0x0, 0x20, 0x70bd2b, 0x25dfdbfd, {{}, {}, {0x4c, 0x18, {0x5, @link='broadcast-link\x00'}}}, ["", "", "", "", "", "", "", ""]}, 0x68}, 0x1, 0x0, 0x0, 0x20041001}, 0x40090) sendmsg$TIPC_CMD_SHOW_PORTS(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x1c, 0x0, 0x200, 0x70bd26, 0x25dfdbff, {}, ["", "", "", "", "", "", "", "", ""]}, 0x1c}, 0x1, 0x0, 0x0, 0x20040000}, 0x10) clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = gettid() msgsnd(0x0, &(0x7f0000000140)={0x1, "42e0e43ecbc21b9cd962f685d0fb65116cbe035717275d063de00f0f7defe2c750f70aff00f921181a2e64f5c41217e4ef83167ed1adfbf1726fff02b1fc59689d8ddde73aa5a941c65bf2fc38c997a3b49c1a1cf527b725a66e53b246f4e6fd009d24c2f19d5896b9c261505abbef6e8b7f4d67ad300d265287c440dab4ec69bc74b2886492ac77e29ff8daaf2b7edcff56f036f60fde9f4761868ac63584fcd96e8a55f1faf4b5a078dace3eced2"}, 0xb7, 0x0) clone(0x8040000, 0x0, 0x0, 0x0, 0x0) socket$netlink(0x10, 0x3, 0x13) openat$cgroup(0xffffffffffffffff, 0x0, 0x200002, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = bpf$PROG_LOAD(0x5, 0x0, 0x0) bpf$BPF_PROG_ATTACH(0x8, &(0x7f0000000100)={0xffffffffffffffff, r1, 0x11}, 0x10) syz_genetlink_get_family_id$tipc(&(0x7f00000003c0)='TIPC\x00') ptrace(0x10, r0) wait4(0x0, 0x0, 0x0, 0x0) ioctl$VT_RESIZEX(0xffffffffffffffff, 0x560a, 0x0) 02:21:48 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000e00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:48 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x700000000000000) 02:21:48 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xa00000000000000) [ 902.000674][T16962] batman_adv: Cannot find parent device [ 902.056524][T16962] batman_adv: batadv0: Adding interface: gretap800 [ 902.072100][T16962] batman_adv: batadv0: The MTU of interface gretap800 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. [ 902.134385][T16962] batman_adv: batadv0: Not using interface gretap800 (retrying later): interface not active [ 902.156360][T16969] ptrace attach of "/root/syz-executor.1"[16966] was attempted by "/root/syz-executor.1"[16969] 02:21:49 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000005c0)=@newlink={0x3c, 0x10, 0x705, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @macsec={{0xb, 0x1, 'macsec\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_MACSEC_ENCODING_SA={0x5, 0x6, 0x9}]}}}]}, 0x3c}}, 0x0) 02:21:49 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xd600, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:49 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000f00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:49 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1f00}}}}, 0x100c) 02:21:49 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xc00000000000000) 02:21:49 executing program 1: pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = socket$alg(0x26, 0x5, 0x0) write$binfmt_elf32(r1, &(0x7f0000000380)={{0x7f, 0x45, 0x4c, 0x46, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x38}, [{}]}, 0x58) bind$alg(r2, &(0x7f0000000180)={0x26, 'hash\x00', 0x0, 0x0, 'sha512-avx\x00'}, 0x58) r3 = accept4(r2, 0x0, 0x0, 0x0) splice(r0, 0x0, r3, 0x0, 0x80000001, 0x0) 02:21:49 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)=ANY=[@ANYBLOB="03000000000000000000480002240400000000069078ac141400ac1408bb0d00907800"/50], 0x100c) [ 902.675228][T16999] batman_adv: Cannot find parent device 02:21:49 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xd06000000000000) 02:21:49 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f00000016c0)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = dup2(r2, r1) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) sendmsg$nl_route(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000280)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @bridge_slave={{0x11, 0x1, 'bridge_slave\x00'}, {0x4}}}]}, 0x3c}}, 0x0) [ 902.716035][T16999] batman_adv: batadv0: Adding interface: gretap801 [ 902.744898][T16999] batman_adv: batadv0: The MTU of interface gretap801 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. [ 902.830072][T16999] batman_adv: batadv0: Not using interface gretap801 (retrying later): interface not active 02:21:49 executing program 1: syz_mount_image$msdos(&(0x7f0000000000)='msdos\x00', &(0x7f00000003c0)='./file0\x00', 0x0, 0x2, &(0x7f00000001c0)=[{&(0x7f0000000100)="eb3d90", 0x3}, {&(0x7f0000000400)="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", 0x1fc, 0x4}], 0x0, &(0x7f0000000140)={[{@fat=@dos1xfloppy='dos1xfloppy'}]}) 02:21:49 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xe00000000000000) 02:21:49 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00002000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:49 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xe603, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:50 executing program 1: r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/rfkill\x00', 0x101006, 0x0) r1 = memfd_create(&(0x7f00000001c0)=')\\\x10\x90]\xd7\xdf\x943\xd8\xad\x12W\x9fd~\x9e\xf3\x84/\xe4\x19\xe5=\x16\xcfe\xb2`q\xc6Z\x88\xde\x8e\x91\xd3D\x99\x90\xf6U\xfe\x87\xe7\xf9\xccN<\xc6\xbb\x93\xb1\xf7\xcb7\xb7\t\xf4p #U\xf9:\x8c\xa1F\xd2\xa6p5\x804Y~\xc9\x19\x03R\xb8L\xef\xd0\x84|\xbe\x06\x00\x00\x00\x00\x00\x00\x00)\xcc?7\xe9\xad\x16\xa0a\xab\xfb)\x0e\x10\xcb\n{\"\xecD\xfa\xdeuC\x86\x92\xad\xef\"3H\x89\x94\xcc\x106\xfd\xd1\xcfq\x02\xfe?R46g\xee\xa4\xb6\xa9w\xe9\x15c6\xac\xa6\xe8\x8fV\xa2V\xba\x7fa\xb2\xc9$V\xcd\x81\x1aI\xd8\xc4\x0e\xad\x9f\\\x1c\xf9\x92\xf8j\x1b\x00'/193, 0x0) write$binfmt_aout(r1, &(0x7f0000000100)=ANY=[@ANYBLOB="b29803000002"], 0x6) write$P9_RWRITE(r1, &(0x7f0000000080)={0xb}, 0xb) sendfile(r0, r1, &(0x7f0000000000), 0x5e976c45) 02:21:50 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf00000000000000) 02:21:50 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2000}}}}, 0x100c) [ 903.220166][T17052] batman_adv: Cannot find parent device [ 903.242225][T17052] batman_adv: batadv0: Adding interface: gretap802 [ 903.266167][T17052] batman_adv: batadv0: The MTU of interface gretap802 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 903.330117][T17052] batman_adv: batadv0: Not using interface gretap802 (retrying later): interface not active 02:21:50 executing program 1: clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = socket$inet_dccp(0x2, 0x6, 0x0) ioctl$sock_inet_SIOCDELRT(r0, 0x890c, &(0x7f0000000040)={0x0, {0x2, 0x0, @empty}, {0x2, 0x0, @local}}) r1 = gettid() tkill(r1, 0x3c) 02:21:50 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) setsockopt$pppl2tp_PPPOL2TP_SO_RECVSEQ(0xffffffffffffffff, 0x111, 0x2, 0x1, 0x4) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:21:50 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000c3700000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:50 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xe803, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:50 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x1000000000000000) 02:21:50 executing program 1: clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = socket$inet_dccp(0x2, 0x6, 0x0) ioctl$sock_inet_SIOCDELRT(r0, 0x890c, &(0x7f0000000040)={0x0, {0x2, 0x0, @empty}, {0x2, 0x0, @local}}) r1 = gettid() tkill(r1, 0x3c) [ 903.763954][T17094] batman_adv: Cannot find parent device [ 903.774648][T17094] batman_adv: batadv0: Adding interface: gretap803 [ 903.781538][T17094] batman_adv: batadv0: The MTU of interface gretap803 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. [ 903.809326][T17094] batman_adv: batadv0: Not using interface gretap803 (retrying later): interface not active 02:21:50 executing program 1: perf_event_open(&(0x7f0000000440)={0x2, 0x70, 0xa3, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = epoll_create1(0x0) r1 = fcntl$dupfd(r0, 0x0, r0) r2 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r0, &(0x7f0000000240)) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r1, &(0x7f000086fff4)) getpid() kcmp$KCMP_EPOLL_TFD(0x0, 0x0, 0x7, 0xffffffffffffffff, &(0x7f00000000c0)={r2}) 02:21:50 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000c3800000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:50 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000}}}}, 0x100c) 02:21:50 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xec03, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:50 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x3f00000000000000) [ 904.096438][T17128] batman_adv: Cannot find parent device [ 904.106216][T17128] batman_adv: batadv0: Adding interface: gretap804 [ 904.116089][T17128] batman_adv: batadv0: The MTU of interface gretap804 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. 02:21:51 executing program 1: clone(0x20002004ffc, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) exit_group(0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000040)={'ip6gretap0\x00', 0x0}) sendmsg$nl_route(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB="7000000010000100"/20, @ANYRES32=r1, @ANYBLOB="0000000000000000480012800e0001006970366772657461700000003400028008000100", @ANYRES32, @ANYBLOB="14000600fe80762acfa7000000000000000000bb14000700fc"], 0x70}}, 0x0) [ 904.186586][T17128] batman_adv: batadv0: Not using interface gretap804 (retrying later): interface not active 02:21:51 executing program 5: socket$inet_icmp_raw(0x2, 0x3, 0x1) accept4$bt_l2cap(0xffffffffffffffff, &(0x7f0000000080)={0x1f, 0x0, @none}, &(0x7f00000000c0)=0xe, 0x80000) r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$FIONCLEX(r2, 0x5450) ioctl$VIDIOC_TRY_EXT_CTRLS(r1, 0xc0205649, &(0x7f00000001c0)={0x0, 0x3ff, 0xde4, 0xffffffffffffffff, 0x0, &(0x7f0000000180)={0x9909ca, 0x2, [], @ptr=0x5}}) ioctl$VHOST_SET_OWNER(r3, 0xaf01, 0x0) r4 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r4, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r5 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r5, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r4, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) [ 904.421354][T17154] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. [ 904.458462][T17154] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. 02:21:51 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x4000000000000000) 02:21:51 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xf003, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:51 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00004000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:51 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4002}}}}, 0x100c) 02:21:51 executing program 1: perf_event_open(&(0x7f0000000340)={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, 0x1}, 0x40c, 0x0, 0x0, 0x1, 0x0, 0x8000000}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x1) ioctl$KVM_RUN(0xffffffffffffffff, 0xae80, 0x0) ioctl$sock_SIOCSIFVLAN_SET_VLAN_FLAG_CMD(0xffffffffffffffff, 0x8983, 0x0) keyctl$KEYCTL_PKEY_VERIFY(0x1c, 0x0, 0x0, 0x0, 0x0) sched_getparam(0xffffffffffffffff, 0x0) llistxattr(0x0, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000280)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x8080}, 0xc800) openat$rtc(0xffffff9c, &(0x7f0000000080)='/dev/rtc0\x00', 0x4000, 0x0) sendmsg$IPCTNL_MSG_CT_GET_DYING(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={0x0}, 0x1, 0x0, 0x0, 0x2004c804}, 0x0) syz_open_procfs(0x0, 0x0) sendmsg$nl_netfilter(0xffffffffffffffff, 0x0, 0x0) clone(0x2000100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) ioctl$SECCOMP_IOCTL_NOTIF_SEND(0xffffffffffffffff, 0xc0182101, &(0x7f0000000300)={0x0, 0x5, 0xca}) socket$inet_tcp(0x2, 0x1, 0x0) r0 = socket$inet(0x2, 0x3, 0x4) getsockopt$inet_pktinfo(r0, 0x0, 0x8, &(0x7f0000000040)={0x0, @local, @local}, &(0x7f00000001c0)=0xc) setsockopt$IPT_SO_SET_REPLACE(r0, 0x4000000000000, 0x40, &(0x7f0000000540)=@raw={'raw\x00', 0x2, 0x3, 0x220, 0x0, 0x0, 0xb4, 0x90, 0xb4, 0x18c, 0x18c, 0x18c, 0x18c, 0x18c, 0x3, 0x0, {[{{@ip={@rand_addr, @remote, 0x0, 0x0, 'syzkaller0\x00', 'netpci0\x00'}, 0x0, 0x70, 0x90}, @unspec=@TRACE={0x20, 'TRACE\x00'}}, {{@ip={@multicast1, @empty, 0x0, 0x0, '\x00', 'bridge_slave_0\x00'}, 0x0, 0x94, 0xfc, 0x0, {}, [@common=@icmp={{0x24, 'icmp\x00'}, {0x0, "df66", 0x1}}]}, @unspec=@CT2={0x68, 'CT\x00', 0x2, {0x0, 0x0, 0x0, 0x0, 'pptp\x00', 'syz1\x00'}}}], {{[], 0x0, 0x70, 0x94, 0x1d3}, {0x24}}}}, 0x27c) 02:21:51 executing program 1: mkdirat$cgroup(0xffffffffffffff9c, &(0x7f0000000000)='syz0\x00', 0x1ff) r0 = openat$cgroup(0xffffffffffffff9c, &(0x7f0000000040)='syz0\x00', 0x200002, 0x0) close(r0) open(&(0x7f0000000080)='./file0\x00', 0x10840, 0x0) ioctl$EXT4_IOC_MOVE_EXT(r0, 0x541b, &(0x7f0000000240)) [ 904.829482][T17178] batman_adv: Cannot find parent device [ 904.846590][T17178] batman_adv: batadv0: Adding interface: gretap805 02:21:51 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0xe, &(0x7f0000000000)={&(0x7f0000000100)=ANY=[@ANYBLOB="700000001000050700"/20, @ANYRES32=0x0, @ANYBLOB="2513000000000000140012800b00010067656e6576650000040002800a000500040000003bdb000008000a00", @ANYRES32, @ANYBLOB="200024007b43a10ae77b9651b8833c84bab7f7ccbe26e1dc76c2439aaf27778e080004002607"], 0x70}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000280)={0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$BINDER_WRITE_READ(0xffffffffffffffff, 0xc0306201, &(0x7f0000000200)={0x1, 0x0, &(0x7f0000001740)=ANY=[@ANYBLOB="05630e40"], 0x0, 0x0, 0x0}) ioctl$BINDER_WRITE_READ(0xffffffffffffffff, 0xc0306201, &(0x7f0000000240)={0x44, 0x0, &(0x7f0000000180)=[@transaction={0x40406300, {0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x48, 0x18, &(0x7f00000003c0)={@flat=@weak_handle, @fd={0x73622a85}, @flat=@handle}, &(0x7f0000000140)={0x0, 0x18, 0x8}}}], 0x0, 0x1000000, 0x0}) ioctl$RTC_WKALM_RD(0xffffffffffffffff, 0x80287010, &(0x7f0000000080)) [ 904.860485][T17178] batman_adv: batadv0: The MTU of interface gretap805 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. [ 904.910854][T17178] batman_adv: batadv0: Not using interface gretap805 (retrying later): interface not active 02:21:51 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x6000000000000000) [ 905.061308][T17209] netlink: 'syz-executor.1': attribute type 5 has an invalid length. [ 905.075688][T17209] device geneve2 entered promiscuous mode 02:21:52 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00004800000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:52 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xf803, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:52 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8800}}}}, 0x100c) 02:21:52 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x40a00, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3, 0x0, 0x0, 0x4}, @mpls={[], @ipv4=@icmp={{0x5, 0x4, 0x0, 0x0, 0x28, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x32) ioctl$KVM_SET_TSC_KHZ(r1, 0xaea2, 0x3) [ 905.204975][T17209] netlink: 'syz-executor.1': attribute type 5 has an invalid length. [ 905.227041][T17209] device geneve2 entered promiscuous mode [ 905.356043][T17231] batman_adv: Cannot find parent device [ 905.374884][T17231] batman_adv: batadv0: Adding interface: gretap806 [ 905.382290][T17231] batman_adv: batadv0: The MTU of interface gretap806 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 905.413283][T17231] batman_adv: batadv0: Not using interface gretap806 (retrying later): interface not active 02:21:52 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0xe, &(0x7f0000000000)={&(0x7f0000000100)=ANY=[@ANYBLOB="700000001000050700"/20, @ANYRES32=0x0, @ANYBLOB="2513000000000000140012800b00010067656e6576650000040002800a000500040000003bdb000008000a00", @ANYRES32, @ANYBLOB="200024007b43a10ae77b9651b8833c84bab7f7ccbe26e1dc76c2439aaf27778e080004002607"], 0x70}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000280)={0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$BINDER_WRITE_READ(0xffffffffffffffff, 0xc0306201, &(0x7f0000000200)={0x1, 0x0, &(0x7f0000001740)=ANY=[@ANYBLOB="05630e40"], 0x0, 0x0, 0x0}) ioctl$BINDER_WRITE_READ(0xffffffffffffffff, 0xc0306201, &(0x7f0000000240)={0x44, 0x0, &(0x7f0000000180)=[@transaction={0x40406300, {0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x48, 0x18, &(0x7f00000003c0)={@flat=@weak_handle, @fd={0x73622a85}, @flat=@handle}, &(0x7f0000000140)={0x0, 0x18, 0x8}}}], 0x0, 0x1000000, 0x0}) ioctl$RTC_WKALM_RD(0xffffffffffffffff, 0x80287010, &(0x7f0000000080)) 02:21:52 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x6558000000000000) 02:21:52 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xfc03, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 905.657690][T17258] netlink: 'syz-executor.1': attribute type 5 has an invalid length. 02:21:52 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00004c00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 905.710074][T17258] device geneve2 entered promiscuous mode [ 905.960401][T17275] batman_adv: Cannot find parent device 02:21:52 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x8100000000000000) [ 906.003752][T17275] batman_adv: batadv0: Adding interface: gretap807 [ 906.042445][T17275] batman_adv: batadv0: The MTU of interface gretap807 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 906.111178][T17275] batman_adv: batadv0: Not using interface gretap807 (retrying later): interface not active 02:21:53 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00655800000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:53 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xb80b}}}}, 0x100c) 02:21:53 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xfeff, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:53 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x88a8ffff00000000) 02:21:53 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x10, 0x2, 0x0) sendmsg$kcm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)=[{&(0x7f00000002c0)="2e00000010008108040f51ecdb4cb92e0c480e0028000000e8bd6efb250309000e000100244e48ff050005001201", 0x2e}], 0x1}, 0x0) 02:21:53 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$DRM_IOCTL_MODE_SETCRTC(r1, 0xc06864a2, &(0x7f0000000180)={&(0x7f00000000c0)=[0xff, 0x0, 0x8001, 0x3ff], 0x4, 0x80000001, 0xb1ae, 0x4, 0x5, 0xfffffffc, 0x6b1, {0x8, 0x6437, 0x80, 0x8000, 0x7, 0x0, 0xd554, 0x5eb9, 0x6, 0x6, 0x1, 0xfff, 0x8, 0x10001, "5ab991dd3ed263fbfeda2d34dc1ad6d8a5ef99be52902a38f50735322c0b7d84"}}) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) setsockopt$inet_dccp_int(r1, 0x21, 0x1, &(0x7f0000000080)=0x1f, 0x4) write$tun(r2, &(0x7f0000000240)=ANY=[@ANYBLOB="03000000000000000000480002240000580e00009078ac141400ac1408bb0d00907800"/50], 0x100c) [ 906.395509][T17305] batman_adv: Cannot find parent device [ 906.408234][T17305] batman_adv: batadv0: Adding interface: gretap808 [ 906.417458][T17305] batman_adv: batadv0: The MTU of interface gretap808 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. [ 906.444277][T17305] batman_adv: batadv0: Not using interface gretap808 (retrying later): interface not active 02:21:53 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xff0f, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:53 executing program 1: perf_event_open(&(0x7f0000000340)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x1}, 0x40c, 0x0, 0x0, 0x1, 0x11}, 0x0, 0x0, 0xffffffffffffffff, 0x1) ioctl$KVM_RUN(0xffffffffffffffff, 0xae80, 0x0) keyctl$revoke(0x3, 0x0) keyctl$KEYCTL_PKEY_VERIFY(0x1c, 0x0, 0x0, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, 0x0, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) openat$rtc(0xffffff9c, &(0x7f0000000080)='/dev/rtc0\x00', 0x0, 0x0) syz_open_procfs(0x0, 0x0) clone(0x2000100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) socket$inet_tcp(0x2, 0x1, 0x0) r0 = socket$inet(0x2, 0x3, 0x4) setsockopt$IPT_SO_SET_REPLACE(r0, 0x4000000000000, 0x40, &(0x7f0000000540)=@raw={'raw\x00', 0x2, 0x3, 0x220, 0x0, 0x0, 0xb4, 0x90, 0xb4, 0x18c, 0x18c, 0x18c, 0x18c, 0x18c, 0x3, 0x0, {[{{@ip={@rand_addr, @remote, 0xb8000000, 0x0, 'syzkaller0\x00', 'netpci0\x00'}, 0x0, 0x70, 0x90}, @unspec=@TRACE={0x20, 'TRACE\x00'}}, {{@ip={@multicast1, @empty, 0x0, 0x0, '\x00', 'bridge_slave_0\x00'}, 0x0, 0x94, 0xfc, 0x0, {}, [@common=@icmp={{0x24, 'icmp\x00'}, {0xe, "df66", 0x1}}]}, @unspec=@CT2={0x68, 'CT\x00', 0x2, {0x0, 0x0, 0x0, 0xf6020000, 'pptp\x00', 'syz1\x00'}}}], {{[], 0x0, 0x70, 0x94, 0x1d3}, {0x24}}}}, 0x27c) 02:21:53 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x9effffff00000000) 02:21:53 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00006000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:53 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x2, 0xfffffffffffffffe}, 0x960, 0x0, 0x0, 0x8, 0x1, 0x0, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9) ioctl$PERF_EVENT_IOC_PAUSE_OUTPUT(0xffffffffffffffff, 0x40042409, 0x1) write$P9_RWSTAT(0xffffffffffffffff, 0x0, 0x1b) r0 = request_key(&(0x7f0000000540)='keyring\x00', 0x0, 0x0, 0x0) syz_open_dev$tty1(0xc, 0x4, 0x4) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000380)='net/ip6_flowlabel\x00') recvmsg(r1, &(0x7f0000000380)={&(0x7f0000000000)=@isdn, 0x80, &(0x7f0000000180)=[{&(0x7f0000000080)=""/51, 0x33}, {&(0x7f0000000140)=""/42, 0x2a}], 0x2}, 0x10023) r2 = syz_open_procfs(0x0, &(0x7f0000000240)='ns\x00') ioctl$EVIOCGPROP(0xffffffffffffffff, 0x80404509, 0x0) write$FUSE_NOTIFY_INVAL_INODE(0xffffffffffffffff, 0x0, 0x0) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f00000000c0)={'syzkaller1\x00', 0x420000015001}) r4 = socket$netlink(0x10, 0x3, 0x0) keyctl$instantiate(0xc, r0, &(0x7f00000003c0)=ANY=[@ANYBLOB="6e657720656372797074667320747275737465643a3a76626f020000daa94ba1ab3a304e00203030303030303030303030303030303030303033007e383382563bf3ea5c41c99bfbf862b7580f658f1d33e3f1a28da99ee6a99f45aece81bd9e2a909a468c7b90fd150e00f45072e05024d96de38771f523c0b397a208de23f18d429c8c5ab6b0950e58bc8a299b343d02ff36ee2c7363c9"], 0x3b, 0xfffffffffffffff8) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000280)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r3, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], 0xfca) sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f00000001c0)={0xa, 0x4e20, 0x2, @private2}, 0x1c) write$cgroup_int(r2, &(0x7f0000000300)=0x1000000000005, 0x12) accept4$packet(0xffffffffffffffff, 0x0, 0x0, 0x0) clone(0xc75e43cfae22dd4, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) [ 906.807893][T17342] batman_adv: Cannot find parent device [ 906.836678][T17342] batman_adv: batadv0: Adding interface: gretap809 [ 906.859591][T17342] batman_adv: batadv0: The MTU of interface gretap809 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. [ 906.889080][T17342] batman_adv: batadv0: Not using interface gretap809 (retrying later): interface not active 02:21:53 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xc005000000000000) [ 906.990594][T17355] IPVS: ftp: loaded support on port[0] = 21 02:21:53 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xff7f, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:54 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe803}}}}, 0x100c) 02:21:54 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00586500000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:54 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xc505000000000000) 02:21:54 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000280)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x5, 0x4, 0x0, 0x0, 0xf3, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @time_exceeded={0xb, 0x1, 0x0, 0x0, 0x40, 0x0, {0x35, 0x4, 0x2, 0xd, 0x8, 0x68, 0x7, 0x81, 0x0, 0xa, @remote, @multicast2, {[@ssrr={0x89, 0xf, 0xb6, [@empty, @multicast2, @multicast2]}, @noop, @timestamp_addr={0x44, 0x14, 0x68, 0x1, 0x0, [{@multicast2, 0x1f}, {@remote, 0x1}]}, @end, @rr={0x7, 0x17, 0xb1, [@initdev={0xac, 0x1e, 0x0, 0x0}, @remote, @empty, @multicast1, @empty]}, @ssrr={0x89, 0x27, 0x48, [@initdev={0xac, 0x1e, 0x1, 0x0}, @local, @local, @loopback, @empty, @multicast2, @multicast2, @local, @dev={0xac, 0x14, 0x14, 0x17}]}, @cipso={0x86, 0x5d, 0x2, [{0x2, 0xf, "8ea007b39d50cbb8a58d3e8b7c"}, {0x0, 0x12, "acf11ea7634c1a176a8f90adc8b18a9b"}, {0x0, 0xa, "396fb1ab76b7fe26"}, {0x6, 0x10, "2bc1f58804a3f0f27f80e0143b17"}, {0x7, 0xf, "3663d4d62a5774216bb678ebc6"}, {0x7, 0x9, "6cba674251682a"}, {0x0, 0x4, "a497"}]}]}}, "94463d"}}}}, 0xfd) [ 907.379634][T17407] batman_adv: Cannot find parent device [ 907.403559][T17407] batman_adv: batadv0: Adding interface: gretap810 [ 907.419439][T17407] batman_adv: batadv0: The MTU of interface gretap810 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 907.478890][T17407] batman_adv: batadv0: Not using interface gretap810 (retrying later): interface not active 02:21:54 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00006800000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:54 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xcd05000000000000) [ 907.683640][T15580] tipc: TX() has been purged, node left! 02:21:54 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0xfffe, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:54 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xd705000000000000) 02:21:54 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf401}}}}, 0x100c) [ 908.014149][T17453] batman_adv: Cannot find parent device [ 908.056269][T17453] batman_adv: batadv0: Adding interface: gretap811 [ 908.076148][T17453] batman_adv: batadv0: The MTU of interface gretap811 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 908.147359][T17453] batman_adv: batadv0: Not using interface gretap811 (retrying later): interface not active 02:21:55 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x2, 0xfffffffffffffffe}, 0x960, 0x0, 0x0, 0x8, 0x1, 0x0, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9) ioctl$PERF_EVENT_IOC_PAUSE_OUTPUT(0xffffffffffffffff, 0x40042409, 0x1) write$P9_RWSTAT(0xffffffffffffffff, 0x0, 0x1b) r0 = request_key(&(0x7f0000000540)='keyring\x00', 0x0, 0x0, 0x0) syz_open_dev$tty1(0xc, 0x4, 0x4) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000380)='net/ip6_flowlabel\x00') recvmsg(r1, &(0x7f0000000380)={&(0x7f0000000000)=@isdn, 0x80, &(0x7f0000000180)=[{&(0x7f0000000080)=""/51, 0x33}, {&(0x7f0000000140)=""/42, 0x2a}], 0x2}, 0x10023) r2 = syz_open_procfs(0x0, &(0x7f0000000240)='ns\x00') ioctl$EVIOCGPROP(0xffffffffffffffff, 0x80404509, 0x0) write$FUSE_NOTIFY_INVAL_INODE(0xffffffffffffffff, 0x0, 0x0) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f00000000c0)={'syzkaller1\x00', 0x420000015001}) r4 = socket$netlink(0x10, 0x3, 0x0) keyctl$instantiate(0xc, r0, &(0x7f00000003c0)=ANY=[@ANYBLOB="6e657720656372797074667320747275737465643a3a76626f020000daa94ba1ab3a304e00203030303030303030303030303030303030303033007e383382563bf3ea5c41c99bfbf862b7580f658f1d33e3f1a28da99ee6a99f45aece81bd9e2a909a468c7b90fd150e00f45072e05024d96de38771f523c0b397a208de23f18d429c8c5ab6b0950e58bc8a299b343d02ff36ee2c7363c9"], 0x3b, 0xfffffffffffffff8) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000280)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r3, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], 0xfca) sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f00000001c0)={0xa, 0x4e20, 0x2, @private2}, 0x1c) write$cgroup_int(r2, &(0x7f0000000300)=0x1000000000005, 0x12) accept4$packet(0xffffffffffffffff, 0x0, 0x0, 0x0) clone(0xc75e43cfae22dd4, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) 02:21:55 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00006c00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:55 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acbe, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:55 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) ioctl$SIOCGIFMTU(r4, 0x8921, &(0x7f00000000c0)) write$tun(r2, &(0x7f0000000080)=ANY=[@ANYBLOB="0300000000000000005b3600480002240000000000069078ac141400ac14a3644504444582d98ffea16e189f08bb0d00907800"/64], 0x100c) 02:21:55 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf0ffffff00000000) 02:21:55 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20480}}}}, 0x100c) [ 908.575246][T17493] batman_adv: Cannot find parent device [ 908.602602][T17493] batman_adv: batadv0: Adding interface: gretap812 [ 908.631069][T17493] batman_adv: batadv0: The MTU of interface gretap812 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 908.716089][T17493] batman_adv: batadv0: Not using interface gretap812 (retrying later): interface not active 02:21:55 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf305000000000000) [ 908.831844][T17502] IPVS: ftp: loaded support on port[0] = 21 02:21:55 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acbf, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:55 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00007400000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:55 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf505000000000000) 02:21:56 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) r3 = socket$inet6(0xa, 0x5, 0x0) close(r3) r4 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r4, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r3, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) r5 = open(&(0x7f00000001c0)='./file0/file1/file0\x00', 0x20180, 0x1) ftruncate(r5, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(0xffffffffffffffff, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(0xffffffffffffffff, r5, 0x0, 0x80001d00c0d0) openat(r5, &(0x7f00000000c0)='./bus\x00', 0x2040, 0xa) sendfile(r3, r4, 0x0, 0x80001d00c0ce) openat(r4, &(0x7f0000000080)='./file0\x00', 0x800c2, 0x10eef1c32ede3064) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x20}) socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(0xffffffffffffffff, 0x8914, &(0x7f0000000180)={'bond_slave_1\x00', {0x7, 0x4e23, @multicast2}}) write$tun(r2, &(0x7f0000000200)=ANY=[@ANYBLOB="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", @ANYRESOCT, @ANYRES64], 0x100c) [ 909.335127][T17566] batman_adv: Cannot find parent device [ 909.353235][T17566] batman_adv: batadv0: Adding interface: gretap813 [ 909.360105][T17566] batman_adv: batadv0: The MTU of interface gretap813 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. [ 909.421512][T17566] batman_adv: batadv0: Not using interface gretap813 (retrying later): interface not active 02:21:56 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00007a00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 909.699938][ T27] audit: type=1800 audit(1589682116.509:176): pid=17579 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=16370 res=0 02:21:56 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x2, 0xfffffffffffffffe}, 0x960, 0x0, 0x0, 0x8, 0x1, 0x0, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9) ioctl$PERF_EVENT_IOC_PAUSE_OUTPUT(0xffffffffffffffff, 0x40042409, 0x1) write$P9_RWSTAT(0xffffffffffffffff, 0x0, 0x1b) r0 = request_key(&(0x7f0000000540)='keyring\x00', 0x0, 0x0, 0x0) syz_open_dev$tty1(0xc, 0x4, 0x4) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000380)='net/ip6_flowlabel\x00') recvmsg(r1, &(0x7f0000000380)={&(0x7f0000000000)=@isdn, 0x80, &(0x7f0000000180)=[{&(0x7f0000000080)=""/51, 0x33}, {&(0x7f0000000140)=""/42, 0x2a}], 0x2}, 0x10023) r2 = syz_open_procfs(0x0, &(0x7f0000000240)='ns\x00') ioctl$EVIOCGPROP(0xffffffffffffffff, 0x80404509, 0x0) write$FUSE_NOTIFY_INVAL_INODE(0xffffffffffffffff, 0x0, 0x0) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f00000000c0)={'syzkaller1\x00', 0x420000015001}) r4 = socket$netlink(0x10, 0x3, 0x0) keyctl$instantiate(0xc, r0, &(0x7f00000003c0)=ANY=[@ANYBLOB="6e657720656372797074667320747275737465643a3a76626f020000daa94ba1ab3a304e00203030303030303030303030303030303030303033007e383382563bf3ea5c41c99bfbf862b7580f658f1d33e3f1a28da99ee6a99f45aece81bd9e2a909a468c7b90fd150e00f45072e05024d96de38771f523c0b397a208de23f18d429c8c5ab6b0950e58bc8a299b343d02ff36ee2c7363c9"], 0x3b, 0xfffffffffffffff8) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000280)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r3, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], 0xfca) sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f00000001c0)={0xa, 0x4e20, 0x2, @private2}, 0x1c) write$cgroup_int(r2, &(0x7f0000000300)=0x1000000000005, 0x12) accept4$packet(0xffffffffffffffff, 0x0, 0x0, 0x0) clone(0xc75e43cfae22dd4, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) 02:21:56 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xf705000000000000) 02:21:56 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40000}}}}, 0x100c) 02:21:56 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acc0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:56 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) ioctl$GIO_FONTX(r1, 0x4b6b, &(0x7f0000000080)={0x1a8, 0x1d, &(0x7f0000000280)}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)=ANY=[@ANYBLOB="03000500000000000000480002240000000000069078ac141400ac1408bb0d00cff300000000e3ffffff0000000000000000"], 0x100c) 02:21:56 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00008100000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 909.833253][T17608] batman_adv: Cannot find parent device [ 909.854157][T17608] batman_adv: batadv0: Adding interface: gretap814 [ 909.866770][T17608] batman_adv: batadv0: The MTU of interface gretap814 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. [ 909.893518][T17608] batman_adv: batadv0: Not using interface gretap814 (retrying later): interface not active 02:21:56 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acc1, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 910.090074][T17628] IPVS: ftp: loaded support on port[0] = 21 02:21:56 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xfeff000000000000) 02:21:57 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0003c400000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 910.309688][T17640] batman_adv: Cannot find parent device [ 910.332566][T17640] batman_adv: batadv0: Adding interface: gretap815 [ 910.365782][T17640] batman_adv: batadv0: The MTU of interface gretap815 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 910.426346][T17640] batman_adv: batadv0: Not using interface gretap815 (retrying later): interface not active 02:21:57 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000000}}}}, 0x100c) 02:21:57 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acc2, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:57 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) r3 = socket$inet6(0xa, 0x5, 0x0) close(r3) r4 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r4, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r3, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r3, r4, 0x0, 0x80001d00c0d0) ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r3, 0xc0406618, &(0x7f0000000080)={{0x2, 0x0, @descriptor="aead28938e7df654"}}) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r5 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r5, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r6 = syz_open_dev$mouse(&(0x7f0000000180)='/dev/input/mouse#\x00', 0x7fff, 0x202102) r7 = syz_genetlink_get_family_id$tipc(&(0x7f0000000200)='TIPC\x00') sendmsg$TIPC_CMD_SET_LINK_PRI(r6, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x30, r7, 0x300, 0x70bd2d, 0x25dfdbfc, {{}, {}, {0x14, 0x18, {0x8, @bearer=@udp='udp:syz1\x00'}}}, ["", "", "", ""]}, 0x30}, 0x1, 0x0, 0x0, 0x11}, 0xbd007689bda56175) ioctl$TUNGETVNETHDRSZ(r1, 0x800454d7, &(0x7f00000000c0)) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) [ 910.846523][T17692] batman_adv: Cannot find parent device [ 910.879683][T17692] batman_adv: batadv0: Adding interface: gretap816 [ 910.898505][T17692] batman_adv: batadv0: The MTU of interface gretap816 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 911.000950][T17692] batman_adv: batadv0: Not using interface gretap816 (retrying later): interface not active 02:21:57 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x2, 0xfffffffffffffffe}, 0x960, 0x0, 0x0, 0x8, 0x1, 0x0, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9) ioctl$PERF_EVENT_IOC_PAUSE_OUTPUT(0xffffffffffffffff, 0x40042409, 0x1) write$P9_RWSTAT(0xffffffffffffffff, 0x0, 0x1b) r0 = request_key(&(0x7f0000000540)='keyring\x00', 0x0, 0x0, 0x0) syz_open_dev$tty1(0xc, 0x4, 0x4) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000380)='net/ip6_flowlabel\x00') recvmsg(r1, &(0x7f0000000380)={&(0x7f0000000000)=@isdn, 0x80, &(0x7f0000000180)=[{&(0x7f0000000080)=""/51, 0x33}, {&(0x7f0000000140)=""/42, 0x2a}], 0x2}, 0x10023) r2 = syz_open_procfs(0x0, &(0x7f0000000240)='ns\x00') ioctl$EVIOCGPROP(0xffffffffffffffff, 0x80404509, 0x0) write$FUSE_NOTIFY_INVAL_INODE(0xffffffffffffffff, 0x0, 0x0) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f00000000c0)={'syzkaller1\x00', 0x420000015001}) r4 = socket$netlink(0x10, 0x3, 0x0) keyctl$instantiate(0xc, r0, &(0x7f00000003c0)=ANY=[@ANYBLOB="6e657720656372797074667320747275737465643a3a76626f020000daa94ba1ab3a304e00203030303030303030303030303030303030303033007e383382563bf3ea5c41c99bfbf862b7580f658f1d33e3f1a28da99ee6a99f45aece81bd9e2a909a468c7b90fd150e00f45072e05024d96de38771f523c0b397a208de23f18d429c8c5ab6b0950e58bc8a299b343d02ff36ee2c7363c9"], 0x3b, 0xfffffffffffffff8) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000280)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r3, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], 0xfca) sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f00000001c0)={0xa, 0x4e20, 0x2, @private2}, 0x1c) write$cgroup_int(r2, &(0x7f0000000300)=0x1000000000005, 0x12) accept4$packet(0xffffffffffffffff, 0x0, 0x0, 0x0) clone(0xc75e43cfae22dd4, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) 02:21:57 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xff0f000000000000) 02:21:57 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00ecfd03000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acc3, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:58 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2000000}}}}, 0x100c) [ 911.359458][T17721] IPVS: ftp: loaded support on port[0] = 21 [ 911.397461][ T27] audit: type=1800 audit(1589682118.209:177): pid=17705 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=16370 res=0 02:21:58 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xffffff7f00000000) 02:21:58 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000010000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 911.462111][T17738] batman_adv: Cannot find parent device 02:21:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acc4, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 911.719547][T17772] batman_adv: Cannot find parent device [ 911.740771][T17772] batman_adv: batadv0: Adding interface: gretap818 [ 911.757231][T17772] batman_adv: batadv0: The MTU of interface gretap818 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. 02:21:58 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) socket$netlink(0x10, 0x3, 0x0) r3 = socket$inet6(0xa, 0x5, 0x0) close(r3) ptrace$setopts(0xffffffffffffffff, 0x0, 0x0, 0x0) tkill(0x0, 0x0) getuid() perf_event_open(0x0, 0x0, 0x2000, r2, 0x0) clone(0x4340100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r4 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$IPT_SO_SET_REPLACE(r4, 0x4000000000000, 0x40, &(0x7f0000000200)=@raw={'raw\x00', 0x2, 0x3, 0x2f8, 0x0, 0x0, 0x160, 0x160, 0x0, 0x260, 0x260, 0x260, 0x260, 0x260, 0x3, 0x0, {[{{@uncond, 0x0, 0x130, 0x160, 0x0, {}, [@common=@unspec=@string={{0xc0, 'string\x00'}, {0x0, 0x0, 'kmp\x00', "bfc74c01d6369df17d17ac76fa5f9b3bfa0c34430d864040bc25b2b73a59aa64cab6b1d2cc05060feb70b5bc8c2d4ba3a94a2d2393e3182f64695d7d05fb478c8f56627a5cf905d564eeeb83ff0150ca0f3c44f7fda4d20a55050342ea9685ecc8838e049f1f2e2d081ddda375bb7008adc297a5ece1bb2df53d17bef26bb6f8", 0x1}}]}, @common=@unspec=@CONNMARK={0x30, 'CONNMARK\x00'}}, {{@uncond=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4c], 0x0, 0x98, 0x100, 0x0, {}, [@common=@ttl={{0x28, 'ttl\x00'}}]}, @unspec=@CT2={0x68, 'CT\x00', 0x2, {0x0, 0x0, 0x0, 0x0, 'pptp\x00', 'syz1\x00'}}}], {{[], 0x0, 0x70, 0x98}, {0x28, '\x00', 0x4}}}}, 0x358) r5 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r5, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r3, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r3, r5, 0x0, 0x80001d00c0d0) getsockname$netlink(r5, &(0x7f0000000080), &(0x7f00000000c0)=0xc) [ 911.820896][T17772] batman_adv: batadv0: Not using interface gretap818 (retrying later): interface not active 02:21:58 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0xffffffff00000000) 02:21:58 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000020000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acc5, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 912.154188][T17813] xt_CT: You must specify a L4 protocol and not use inversions on it [ 912.222830][T15580] tipc: TX() has been purged, node left! [ 912.238000][T17803] batman_adv: Cannot find parent device [ 912.247695][T17803] batman_adv: batadv0: Adding interface: gretap819 [ 912.255252][T17803] batman_adv: batadv0: The MTU of interface gretap819 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. [ 912.281891][T17803] batman_adv: batadv0: Not using interface gretap819 (retrying later): interface not active [ 912.293243][T15580] tipc: TX() has been purged, node left! 02:21:59 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x2, 0xfffffffffffffffe}, 0x960, 0x0, 0x0, 0x8, 0x1, 0x0, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9) ioctl$PERF_EVENT_IOC_PAUSE_OUTPUT(0xffffffffffffffff, 0x40042409, 0x1) write$P9_RWSTAT(0xffffffffffffffff, 0x0, 0x1b) r0 = request_key(&(0x7f0000000540)='keyring\x00', 0x0, 0x0, 0x0) syz_open_dev$tty1(0xc, 0x4, 0x4) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000380)='net/ip6_flowlabel\x00') recvmsg(r1, &(0x7f0000000380)={&(0x7f0000000000)=@isdn, 0x80, &(0x7f0000000180)=[{&(0x7f0000000080)=""/51, 0x33}, {&(0x7f0000000140)=""/42, 0x2a}], 0x2}, 0x10023) r2 = syz_open_procfs(0x0, &(0x7f0000000240)='ns\x00') ioctl$EVIOCGPROP(0xffffffffffffffff, 0x80404509, 0x0) write$FUSE_NOTIFY_INVAL_INODE(0xffffffffffffffff, 0x0, 0x0) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f00000000c0)={'syzkaller1\x00', 0x420000015001}) r4 = socket$netlink(0x10, 0x3, 0x0) keyctl$instantiate(0xc, r0, &(0x7f00000003c0)=ANY=[@ANYBLOB="6e657720656372797074667320747275737465643a3a76626f020000daa94ba1ab3a304e00203030303030303030303030303030303030303033007e383382563bf3ea5c41c99bfbf862b7580f658f1d33e3f1a28da99ee6a99f45aece81bd9e2a909a468c7b90fd150e00f45072e05024d96de38771f523c0b397a208de23f18d429c8c5ab6b0950e58bc8a299b343d02ff36ee2c7363c9"], 0x3b, 0xfffffffffffffff8) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000280)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r3, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], 0xfca) sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f00000001c0)={0xa, 0x4e20, 0x2, @private2}, 0x1c) write$cgroup_int(r2, &(0x7f0000000300)=0x1000000000005, 0x12) accept4$packet(0xffffffffffffffff, 0x0, 0x0, 0x0) clone(0xc75e43cfae22dd4, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) 02:21:59 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100)='/dev/net/tun\x00', 0x100, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r4, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) r5 = socket$inet(0x2, 0x4000000805, 0x0) r6 = socket$inet_sctp(0x2, 0x5, 0x84) r7 = dup3(r5, r6, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r6, 0x84, 0x64, &(0x7f0000000040)=[@in={0x2, 0x4e20, @empty}], 0x10) sendto$inet(r7, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r6, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r6, 0x84, 0x1d, &(0x7f000025e000)={0x2, [0x0, 0x0]}, &(0x7f0000a8a000)=0xc) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(r7, 0x84, 0x6c, &(0x7f000059aff8)={r8}, &(0x7f000034f000)=0x2059b000) getsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r4, 0x84, 0xa, &(0x7f0000000080)={0x80, 0x200, 0x4, 0x400, 0x3, 0x2, 0x1000, 0x60, r8}, &(0x7f00000000c0)=0x20) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:21:59 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000180)=ANY=[@ANYBLOB="3c0000001000010400"/20, @ANYRES32=0x0, @ANYRES64, @ANYRES32, @ANYBLOB], 0x3c}}, 0x0) 02:21:59 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acc6, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:59 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3000000}}}}, 0x100c) 02:21:59 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000030000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 912.564280][T17840] netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. 02:21:59 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) r4 = socket$inet6_sctp(0xa, 0x801, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r4, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) r5 = socket$inet6_sctp(0xa, 0x801, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r5, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) connect$inet6(r5, &(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) getsockname(r5, &(0x7f0000001540)=@pppol2tpv3={0x18, 0x1, {0x0, 0xffffffffffffffff, {0x2, 0x0, @multicast1}}}, &(0x7f00000015c0)=0x80) connect$inet6(r6, &(0x7f0000001600)={0xa, 0x4e20, 0x7, @dev={0xfe, 0x80, [], 0x10}, 0x10001}, 0x1c) connect$inet6(r4, &(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) ioctl$FIONCLEX(r4, 0x5450) [ 912.624945][T17842] batman_adv: Cannot find parent device [ 912.642018][T17842] batman_adv: batadv0: Adding interface: gretap820 02:21:59 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x9, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x80000000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000180)=ANY=[@ANYBLOB="3c00000010000500"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB="a8c4069381c9a0fd5ac2f8af999f2cac0f955767472a83e62986dcaded2eb3ace1fb0a367c6a78a9e3614184ae4771000000cf6f00a251fa11a620d2df5dd994a949d3d9ad5f70a1a0df00de9661704372acf65978620a00833addae7c87d75458327479fab7b83cd1d941301f8a70c898f0eaa3ed43"], 0x3c}}, 0x0) getsockopt$IP_VS_SO_GET_TIMEOUT(r0, 0x0, 0x486, &(0x7f0000000000), &(0x7f0000000040)=0xc) [ 912.653500][T17842] batman_adv: batadv0: The MTU of interface gretap820 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 912.679832][T17842] batman_adv: batadv0: Not using interface gretap820 (retrying later): interface not active [ 912.764813][T17857] IPVS: ftp: loaded support on port[0] = 21 02:21:59 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acc7, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:21:59 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000040000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:21:59 executing program 3: r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xfffffffffffffffd, r1, 0x0) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) r3 = socket$inet6(0xa, 0x5, 0x0) close(r3) r4 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r4, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r3, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r3, r4, 0x0, 0x80001d00c0d0) sendmsg$RDMA_NLDEV_CMD_RES_CM_ID_GET(r4, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x18, 0x140b, 0x200, 0x70bd29, 0x25dfdbfe, "", [@RDMA_NLDEV_ATTR_RES_CM_IDN={0x8, 0x3f, 0x2}]}, 0x18}, 0x1, 0x0, 0x0, 0x20000881}, 0x8000) openat$userio(0xffffffffffffff9c, &(0x7f0000000040)='/dev/userio\x00', 0x149201, 0x0) 02:21:59 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000}}}}, 0x100c) [ 913.315910][T17903] batman_adv: Cannot find parent device [ 913.339939][T17903] batman_adv: batadv0: Adding interface: gretap821 [ 913.355565][T17903] batman_adv: batadv0: The MTU of interface gretap821 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 913.410499][T17903] batman_adv: batadv0: Not using interface gretap821 (retrying later): interface not active 02:22:00 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x2, 0xfffffffffffffffe}, 0x960, 0x0, 0x0, 0x8, 0x1, 0x0, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9) ioctl$PERF_EVENT_IOC_PAUSE_OUTPUT(0xffffffffffffffff, 0x40042409, 0x1) write$P9_RWSTAT(0xffffffffffffffff, 0x0, 0x1b) r0 = request_key(&(0x7f0000000540)='keyring\x00', 0x0, 0x0, 0x0) syz_open_dev$tty1(0xc, 0x4, 0x4) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000380)='net/ip6_flowlabel\x00') recvmsg(r1, &(0x7f0000000380)={&(0x7f0000000000)=@isdn, 0x80, &(0x7f0000000180)=[{&(0x7f0000000080)=""/51, 0x33}, {&(0x7f0000000140)=""/42, 0x2a}], 0x2}, 0x10023) r2 = syz_open_procfs(0x0, &(0x7f0000000240)='ns\x00') ioctl$EVIOCGPROP(0xffffffffffffffff, 0x80404509, 0x0) write$FUSE_NOTIFY_INVAL_INODE(0xffffffffffffffff, 0x0, 0x0) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f00000000c0)={'syzkaller1\x00', 0x420000015001}) r4 = socket$netlink(0x10, 0x3, 0x0) keyctl$instantiate(0xc, r0, &(0x7f00000003c0)=ANY=[@ANYBLOB="6e657720656372797074667320747275737465643a3a76626f020000daa94ba1ab3a304e00203030303030303030303030303030303030303033007e383382563bf3ea5c41c99bfbf862b7580f658f1d33e3f1a28da99ee6a99f45aece81bd9e2a909a468c7b90fd150e00f45072e05024d96de38771f523c0b397a208de23f18d429c8c5ab6b0950e58bc8a299b343d02ff36ee2c7363c9"], 0x3b, 0xfffffffffffffff8) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000280)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r3, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], 0xfca) sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f00000001c0)={0xa, 0x4e20, 0x2, @private2}, 0x1c) write$cgroup_int(r2, &(0x7f0000000300)=0x1000000000005, 0x12) accept4$packet(0xffffffffffffffff, 0x0, 0x0, 0x0) clone(0xc75e43cfae22dd4, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) 02:22:00 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) setsockopt$netlink_NETLINK_NO_ENOBUFS(r1, 0x10e, 0x5, &(0x7f0000000080)=0x4, 0x4) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r3, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) pidfd_getfd(r1, r3, 0x0) ioctl$sock_inet_SIOCSIFADDR(0xffffffffffffffff, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000380)={@void, @val={0x3}, @mpls={[], @ipv4=@dccp={{0x35, 0x4, 0x2, 0x0, 0x191, 0x68, 0x0, 0xdb, 0x21, 0x0, @rand_addr=0x64010101, @multicast2, {[@timestamp_addr={0x44, 0x14, 0x41, 0x1, 0xf, [{@rand_addr=0x64010102, 0x255}, {@multicast2, 0x4}]}, @end, @cipso={0x86, 0x4b, 0x1, [{0x0, 0x12, "12dbd6e0c0dabb8397cbb8c09a18ac36"}, {0x7, 0x12, "766d885d8223abd4f344c8d57cd8bddd"}, {0x2, 0xb, "c2ad1740df8ef8099d"}, {0x5, 0x9, "020b69608bfff9"}, {0x5, 0x9, "eeae45b0db9e5d"}, {0x5, 0x4, "a786"}]}, @rr={0x7, 0xb, 0xf2, [@private=0xa010102, @private=0xa010101]}, @timestamp_prespec={0x44, 0x1c, 0x7, 0x3, 0x8, [{@loopback, 0x5}, {@initdev={0xac, 0x1e, 0x1, 0x0}, 0xfffffedc}, {@broadcast, 0x4}]}, @timestamp_prespec={0x44, 0x14, 0x74, 0x3, 0xf, [{@loopback, 0x2}, {@multicast2, 0x93}]}, @timestamp={0x44, 0x8, 0x61, 0x0, 0x7, [0xfffffffd]}, @timestamp={0x44, 0x8, 0x65, 0x0, 0x9, [0x81]}, @timestamp_addr={0x44, 0x14, 0xc2, 0x1, 0x4, [{@empty, 0x5}, {@private=0xa010100, 0x1}]}]}}, {{0x4e21, 0x4e22, 0x4, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, "cdc2f6", 0x1, "789330"}, "366bbde7e7c9a22935de0375541ecaa3cfd1ce50404ee9957d5beb1e6661423cfb76b4f194cf4a261aa08bf3bdb61bf0416681de992d8df8ea45f5082dec7ad482f3c1d3e631f939ce18f623e8ec77d1924630bf65f80f7332e9e6104181f3887ff062818132e602221408aa14aab3d68512ab87060df24fc85e3d831e767b7101d14d2030276d15f58c2d77f4504d1ded6f37dd754343ae0282c0c71c0ecd31c8a735e4bb3fe72728e65938fb"}}}}, 0x19b) 02:22:00 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) r1 = socket$inet6(0xa, 0x5, 0x0) close(r1) r2 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r2, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r1, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r1, r2, 0x0, 0x80001d00c0d0) ioctl$BINDER_SET_CONTEXT_MGR(r2, 0x40046207, 0x0) 02:22:00 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acc8, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:00 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000050000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:00 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6000000}}}}, 0x100c) 02:22:00 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) r5 = socket$inet6(0xa, 0x5, 0x0) close(r5) r6 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r6, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r5, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r5, r6, 0x0, 0x80001d00c0d0) r7 = dup(r5) sendmsg$inet6(r7, &(0x7f0000000540)={&(0x7f0000000080)={0xa, 0x4e24, 0x0, @private2={0xfc, 0x2, [], 0x1}, 0x1}, 0x1c, &(0x7f00000002c0)=[{&(0x7f0000000180)="42f2901b453b5b61d585d3242d5a7654dab1b31666b7d277a5f8f23e9eb9abbd8db7c7864f16daae8e55b098d7d67b688ee66a3d4a", 0x35}, {&(0x7f0000000380)="84e6f14377ba04dae4ffadc2ef4e53a8601c7061a79600ecac4947f6dc9d0567d1a40568bd7aef981055fbd864ae7a253d4a43dea66c8af1a716acb55e6fb326de865cb8c6efa567f66d27a094f1dce83281f0340baef9d7fad32738f86482f06679433806899aaf94699f1dff86044857b8a2e648036563d4a74cd4ad3c85bed347eae8ee13ad8dc27a75bb07bc35c9a46cf03e184dfd9446251b56d83d72ae5c212055a6375658da4ae8f013f87ab857f0544ad2af6456ad1604b6ea05bdb2c137c685b66051b4bfc8650966ee5df7efd8402e7ad22d20e8b6f9d0137eab12a00283c6736f5a5050afeffd4c4d9f66bc", 0xf1}, {&(0x7f00000001c0)="076165e2bfba424ca82dc896f590cdf23925efd6c75d247ae1d9a90966cab90508ef3e3a45eb6eb2a4134a8825fdc6df132858cd50220a875a0317217837c14c2fa30c266d76858bbf75405f6c329cd4b51c35a8597cb5d7fe56f09faef9ca9e8352aa732a0468d12af58b3b9609766c5cea80405f379647663817a083128f373ab08df68c5f32058fa82dc722312598fe0c530a65d939a3533a2d4b9db3a775692c9da118fe81c732824ddeb8f5b2149d1a144001b24df001d35bcaa6d7", 0xbe}, {&(0x7f0000000480)="7432b6498908bb97ccd480741f9bcd25e933739d39f510c3129fc20c92389f474e66bd0861115cc14687ccbd8089fd4b930c9692cc8d4dad59c28b70c16579b511bb0c457b13c6a9b54075997ccfb1421754af3aa424d421144d33e5d27d782976ac9455613fe0f8c7cda1eb3eb3e4b74725812dd506b4ee0074200ef822f4398a7c337e0338703f2d7abc196a76", 0x8e}], 0x4}, 0x90) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r4, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) r8 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r8, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) write$tun(r8, &(0x7f00000000c0)=ANY=[@ANYBLOB="e807275452decee38e4a8c2ee3391272d0367bd34e050ef4070d8d6b48160ff1eefc1657873d9ef9cb755a4f59aaf2723b1e99894f02f9ab376bb210ac6550ab73c5f44986406a220742695e99ac1ccefd333517bad4b29db697"], 0x100c) [ 913.813678][T17942] batman_adv: Cannot find parent device [ 913.833992][T17932] IPVS: ftp: loaded support on port[0] = 21 [ 913.866054][T17942] batman_adv: batadv0: Adding interface: gretap822 [ 913.901691][T17942] batman_adv: batadv0: The MTU of interface gretap822 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. [ 913.964864][T17942] batman_adv: batadv0: Not using interface gretap822 (retrying later): interface not active 02:22:00 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acc9, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 914.251443][ T27] audit: type=1800 audit(1589682121.069:178): pid=17958 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=16380 res=0 [ 914.319787][T17972] batman_adv: Cannot find parent device 02:22:01 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000060000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:01 executing program 3: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$alg(0x26, 0x5, 0x0) bind$alg(r2, &(0x7f0000091fa8)={0x26, 'hash\x00', 0x0, 0x0, 'hmac(sha256)\x00'}, 0x58) setsockopt$ALG_SET_KEY(r2, 0x117, 0x1, &(0x7f0000002640)="18772aa83f02ceaa540d07f252f1e1fc3c41ceb0078788fc99eabbbd0e5009858619ba5c3d50cfddf29bb1734531a47a3d52653d6dd4613a70a4ab67dfbac35e50", 0x41) perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r4, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) setsockopt$pppl2tp_PPPOL2TP_SO_LNSMODE(r4, 0x111, 0x4, 0x0, 0x4) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="3c0000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000aeca86bdb10bfde80067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB="f3063306807001db2c221349e957f231351e67de4068ea7ab8b607"], 0x3c}}, 0x0) [ 914.396979][T17972] batman_adv: batadv0: Adding interface: gretap823 [ 914.428108][T17972] batman_adv: batadv0: The MTU of interface gretap823 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 914.517113][T17972] batman_adv: batadv0: Not using interface gretap823 (retrying later): interface not active 02:22:01 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7000000}}}}, 0x100c) [ 914.736230][T17995] netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. 02:22:01 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000070000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:01 executing program 1: perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r0 = openat$fuse(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/fuse\x00', 0x2, 0x0) mount$fuse(0x0, &(0x7f0000000200)='./file0\x00', &(0x7f0000000240)='fuse\x00', 0x0, &(0x7f0000000280)=ANY=[@ANYBLOB='fd=', @ANYRESHEX=r0, @ANYBLOB=',rootmode=00000000000000000040000,user_id=', @ANYRESDEC=0x0, @ANYBLOB=',group_id=', @ANYRESDEC=0x0]) preadv(r0, &(0x7f0000000540)=[{&(0x7f0000000300)=""/101, 0x65}], 0x1, 0x0) r1 = open(&(0x7f0000000080)='./file0\x00', 0x0, 0x0) preadv(r0, &(0x7f0000000040)=[{&(0x7f0000000480)=""/164, 0xa4}], 0x1, 0x0) write$FUSE_INIT(r0, &(0x7f0000000100)={0x50, 0x0, 0x1, {0x7, 0x1e}}, 0x50) write$FUSE_OPEN(r0, &(0x7f0000000000)={0x20, 0x0, 0x2}, 0x20) syz_open_procfs(0x0, 0x0) ioctl$INOTIFY_IOC_SETNEXTWD(0xffffffffffffffff, 0x40044900, 0x3ff) ioctl$PERF_EVENT_IOC_SET_BPF(r1, 0x40042408, 0xffffffffffffffff) 02:22:01 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acca, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:01 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_open_dev$sg(&(0x7f00000003c0)='/dev/sg#\x00', 0x0, 0x0) r1 = gettid() sendmsg$DEVLINK_CMD_RELOAD(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f00000001c0), 0xc, &(0x7f0000000380)={&(0x7f0000000540)=ANY=[@ANYBLOB="84000000", @ANYRES16=0x0, @ANYBLOB="00032bbd7000fddbdf2525000000080001007063690011000200303030303a30303a31302e300000000008008b00", @ANYRES32=0x0, @ANYBLOB="080001007063690011000200303030303a30303a31302e300000000008008b00", @ANYRES32=0x0, @ANYBLOB="0e0001006e657464657673696d0008000f0002006e657464657673a3f5248c530f6d696d30000008f3ad85e24b0354165dd7463ad8abcd008b00", @ANYRES32=r1, @ANYBLOB], 0x84}, 0x1, 0x0, 0x0, 0x8010}, 0x20048001) ioctl$BLKTRACESETUP(r0, 0xc0481273, &(0x7f0000000040)={[], 0x0, 0x73e, 0xf6, 0x0, 0x0, r1}) r2 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r2, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) perf_event_open(&(0x7f0000000380)={0x4, 0x70, 0x4, 0x9, 0x40, 0x4, 0x0, 0x1f, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0xfffffff7, 0x4, @perf_config_ext={0x8, 0x4}, 0x2, 0x80000000, 0x3, 0x9, 0x9, 0x7fffffff, 0x401}, r1, 0xd, r2, 0x9) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f00000004c0)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) getsockopt$PNPIPE_IFINDEX(r4, 0x113, 0x2, &(0x7f0000000440)=0x0, &(0x7f0000000480)=0x4) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x20, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, r5}}, 0x20}}, 0x0) r6 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r6, 0x1276, 0x0) r7 = syz_genetlink_get_family_id$ipvs(&(0x7f00000000c0)='IPVS\x00') openat$audio1(0xffffffffffffff9c, &(0x7f0000000500)='/dev/audio1\x00', 0x82000, 0x0) sendmsg$IPVS_CMD_NEW_DEST(r6, &(0x7f0000000340)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0xfc, r7, 0x400, 0x70bd2d, 0x25dfdbfe, {}, [@IPVS_CMD_ATTR_TIMEOUT_TCP={0x8, 0x4, 0x101}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0x56bb}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0x6}, @IPVS_CMD_ATTR_DEST={0x5c, 0x2, 0x0, 0x1, [@IPVS_DEST_ATTR_L_THRESH={0x8, 0x6, 0x3}, @IPVS_DEST_ATTR_INACT_CONNS={0x8, 0x8, 0x9}, @IPVS_DEST_ATTR_FWD_METHOD={0x8, 0x3, 0x2}, @IPVS_DEST_ATTR_ADDR={0x14, 0x1, @ipv6=@dev={0xfe, 0x80, [], 0x1a}}, @IPVS_DEST_ATTR_L_THRESH={0x8, 0x6, 0x8001}, @IPVS_DEST_ATTR_INACT_CONNS={0x8}, @IPVS_DEST_ATTR_WEIGHT={0x8, 0x4, 0x400}, @IPVS_DEST_ATTR_ADDR={0x14, 0x1, @ipv6=@mcast2}]}, @IPVS_CMD_ATTR_SERVICE={0x18, 0x1, 0x0, 0x1, [@IPVS_SVC_ATTR_ADDR={0x14, 0x3, @ipv4=@local}]}, @IPVS_CMD_ATTR_SERVICE={0x1c, 0x1, 0x0, 0x1, [@IPVS_SVC_ATTR_AF={0x6, 0x1, 0x2}, @IPVS_SVC_ATTR_PORT={0x6, 0x4, 0x4e21}, @IPVS_SVC_ATTR_FWMARK={0x8}]}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0xdc}, @IPVS_CMD_ATTR_DAEMON={0x30, 0x3, 0x0, 0x1, [@IPVS_DAEMON_ATTR_MCAST_PORT={0x6, 0x7, 0x4e23}, @IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @local}, @IPVS_DAEMON_ATTR_STATE={0x8, 0x1, 0x1}, @IPVS_DAEMON_ATTR_SYNC_MAXLEN={0x6, 0x4, 0x4}]}, @IPVS_CMD_ATTR_TIMEOUT_TCP={0x8}]}, 0xfc}, 0x1, 0x0, 0x0, 0x4000000}, 0xc0d0) r8 = openat$binder_debug(0xffffffffffffff9c, &(0x7f0000000a00)='/sys/kernel/debug/binder/state\x00', 0x0, 0x0) sendmsg$NFNL_MSG_COMPAT_GET(r8, &(0x7f0000000b40)={&(0x7f0000000a40)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000b00)={&(0x7f0000000680)={0x74, 0x0, 0xb, 0x201, 0x0, 0x0, {0x3, 0x0, 0x7}, [@NFTA_COMPAT_NAME={0x19, 0x1, 'eth1security%%md5sum\x00'}, @NFTA_COMPAT_TYPE={0x8, 0x3, 0x1, 0x0, 0x1}, @NFTA_COMPAT_REV={0x8, 0x2, 0x1, 0x0, 0x3}, @NFTA_COMPAT_TYPE={0x8, 0x3, 0x1, 0x0, 0x1}, @NFTA_COMPAT_TYPE={0x8, 0x3, 0x1, 0x0, 0x1}, @NFTA_COMPAT_NAME={0x23, 0x1, '/sys/kernel/debug/binder/state\x00'}]}, 0x74}, 0x1, 0x0, 0x0, 0x28000001}, 0x4000000) 02:22:01 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) getresuid(&(0x7f0000000200), &(0x7f0000000280)=0x0, &(0x7f00000002c0)) sendmsg$nl_netfilter(r1, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000400)={&(0x7f0000000300)={0xe0, 0x4, 0x8, 0x101, 0x70bd2b, 0x25dfdbfd, {0x5, 0x0, 0x1}, [@nested={0xc3, 0x3b, 0x0, 0x1, [@typed={0x4, 0x58}, @generic="7cdc9a60f04433e175e8c7a3cf7587ef9a0f63e2ae7b74b6ed6c8a9a4a52ef16b3534f6f36858d13bafca901de71cd4362bf56da618b20284b45cbd21b4dabca9844696165cd675aa7ce86d902675320eb70e42f9541c3c4b2f0f67cebe787fef2639080dc1d653f9d1009f96eab5341b1d8650c7342b35c2a15c19a19a6eb9bcbb87daf5e3a6b0156359f3c3e3588f44624da24ecd6485f180b0b7307bdb9cc6b6e047d05a6aeade8a08980bc9483b84eaa72f0e6cbfa8365f97a"]}, @typed={0x8, 0x43, 0x0, 0x0, @uid=r2}]}, 0xe0}, 0x1, 0x0, 0x0, 0x20044010}, 0x4000) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) ioctl$RTC_VL_READ(r1, 0x80047013, &(0x7f0000000180)) r4 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r5 = socket$inet6(0xa, 0x5, 0x0) close(r5) r6 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000480)='/dev/hwrng\x00', 0x40, 0x0) epoll_ctl$EPOLL_CTL_DEL(r6, 0x2, r4) r7 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r7, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r5, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r5, r7, 0x0, 0x80001d00c0d0) getsockopt$IP_VS_SO_GET_SERVICE(r5, 0x0, 0x483, &(0x7f0000000080), &(0x7f0000000100)=0x68) write$tun(r3, &(0x7f00000004c0)=ANY=[@ANYRES32, @ANYRES64], 0x100c) [ 915.072544][T18029] debugfs: File 'dropped' in directory 'sg0' already present! [ 915.087948][T18029] debugfs: File 'msg' in directory 'sg0' already present! [ 915.101431][T18029] debugfs: File 'trace0' in directory 'sg0' already present! [ 915.160236][T18028] batman_adv: Cannot find parent device [ 915.210279][T18028] batman_adv: batadv0: Adding interface: gretap824 [ 915.231539][T18028] batman_adv: batadv0: The MTU of interface gretap824 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. [ 915.320893][T18028] batman_adv: batadv0: Not using interface gretap824 (retrying later): interface not active [ 915.372087][T18034] debugfs: File 'dropped' in directory 'sg0' already present! [ 915.379722][T18034] debugfs: File 'msg' in directory 'sg0' already present! [ 915.411879][T18034] debugfs: File 'trace0' in directory 'sg0' already present! 02:22:02 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000a0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 915.419756][ T27] audit: type=1800 audit(1589682122.229:179): pid=18043 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=16384 res=0 02:22:02 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1accb, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:02 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) write$P9_RREADLINK(r1, &(0x7f0000000080)={0x10, 0x17, 0x1, {0x7, './file0'}}, 0x10) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:22:02 executing program 3: r0 = openat$binder_debug(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/debug/binder/failed_transaction_log\x00', 0x0, 0x0) getsockopt$inet_sctp6_SCTP_AUTOCLOSE(r0, 0x84, 0x4, &(0x7f00000000c0), &(0x7f0000000100)=0x4) perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) [ 915.629692][T18059] batman_adv: Cannot find parent device [ 915.682634][T18059] batman_adv: batadv0: Adding interface: gretap825 [ 915.713759][T18059] batman_adv: batadv0: The MTU of interface gretap825 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 915.781550][T18059] batman_adv: batadv0: Not using interface gretap825 (retrying later): interface not active 02:22:02 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$nl_route(0x10, 0x3, 0x0) r0 = syz_open_dev$sg(&(0x7f00000003c0)='/dev/sg#\x00', 0x0, 0x0) r1 = gettid() sendmsg$DEVLINK_CMD_RELOAD(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f00000001c0), 0xc, &(0x7f0000000380)={&(0x7f0000000440)=ANY=[@ANYBLOB="94060000", @ANYRES16=0x0, @ANYBLOB="00032bbd7000fddbdf2525000000080001007063690011000200303030303a30303a31302e300000000008008b00", @ANYRES32=0x0, @ANYBLOB="080001007063690011000200303030303a30303a31302e300000000008008b00", @ANYRES32=0x0, @ANYBLOB="0e0001006e657464657673696d0000000f0002006e657464657673696d30000008008b00", @ANYRES32=r1, @ANYBLOB], 0x84}, 0x1, 0x0, 0x0, 0x8010}, 0x20048001) ioctl$BLKTRACESETUP(r0, 0xc0481273, &(0x7f0000000040)={[], 0x0, 0x73e, 0xf6, 0x0, 0x0, r1}) r2 = syz_open_procfs(r1, &(0x7f0000000040)='fdinfo\x00') sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="200000001000000420000000fcffffff00000000", @ANYRES32=0x0, @ANYBLOB="1600000000003549f31e0000a0b81cc926490f856e3ff34308cc0cd7cc5fa5ef00d4d82d9106873a6fb9729e5145749c6b94560da6b4dcbe4c05bd48378e78268d26734d50f7fc706f630c6aa8da27690bc6665ccc0d56cd93c6dcfcb7fae35a3063dc6028ddb3fa0b"], 0x20}, 0x1, 0x0, 0x0, 0x2000c001}, 0x0) ioctl$SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE(r2, 0xc08c5336, &(0x7f0000000500)={0x0, 0x0, 0x1, 'queue1\x00', 0x20}) 02:22:02 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) setsockopt$netrom_NETROM_N2(r4, 0x103, 0x3, &(0x7f0000000080)=0x400, 0x4) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:22:02 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8000000}}}}, 0x100c) 02:22:02 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1accc, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 916.032431][T18091] debugfs: File 'dropped' in directory 'sg0' already present! [ 916.049431][T18091] debugfs: File 'msg' in directory 'sg0' already present! [ 916.057246][T15580] tipc: TX() has been purged, node left! [ 916.068861][T18091] debugfs: File 'trace0' in directory 'sg0' already present! [ 916.073051][T18093] batman_adv: Cannot find parent device 02:22:02 executing program 1: perf_event_open(&(0x7f0000000440)={0x2, 0x70, 0xa3, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) memfd_create(&(0x7f0000000040)='/dev/ttyS3\x00', 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = socket(0x200000000000011, 0x3, 0x0) r2 = dup(r0) getpeername$packet(r2, &(0x7f0000000000)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000040)=0x12) sendmmsg(r1, &(0x7f0000004f00)=[{{&(0x7f0000000340)=@xdp={0x2c, 0x0, r3, 0x0, 0x600}, 0x80, &(0x7f0000000240)=[{&(0x7f00000001c0)="b2ab61cd1a82dbc522c3a58786dd", 0xe}], 0x1}}], 0x1, 0x0) 02:22:02 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000c0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 916.083979][T15580] tipc: TX() has been purged, node left! [ 916.105603][T18093] batman_adv: batadv0: Adding interface: gretap826 [ 916.113536][T18091] debugfs: File 'dropped' in directory 'sg0' already present! [ 916.122407][T15580] tipc: TX() has been purged, node left! [ 916.135844][T18091] debugfs: File 'msg' in directory 'sg0' already present! [ 916.149139][T18093] batman_adv: batadv0: The MTU of interface gretap826 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:03 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r1, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) r2 = syz_genetlink_get_family_id$SEG6(&(0x7f00000000c0)='SEG6\x00') sendmsg$SEG6_CMD_SET_TUNSRC(r1, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400010}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x3c, r2, 0x200, 0x70bd2c, 0x25dfdbff, {}, [@SEG6_ATTR_DSTLEN={0x8, 0x2, 0x2a8000}, @SEG6_ATTR_DSTLEN={0x8, 0x2, 0x20}, @SEG6_ATTR_ALGID={0x5}, @SEG6_ATTR_SECRET={0x8, 0x4, [0xfffffffc]}, @SEG6_ATTR_HMACKEYID={0x8, 0x3, 0x80000001}]}, 0x3c}, 0x1, 0x0, 0x0, 0x22000080}, 0x810) r3 = socket$inet6(0xa, 0x5, 0x0) close(r3) r4 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r4, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r3, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r3, r4, 0x0, 0x80001d00c0d0) setsockopt$inet_sctp_SCTP_EVENTS(r4, 0x84, 0xb, &(0x7f0000000200)={0xff, 0x9, 0x4a, 0x1f, 0x3, 0x2f, 0x4, 0x9, 0x0, 0x4, 0xff, 0x5, 0xe0, 0xe8}, 0xe) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=ANY=[@ANYBLOB="3c0000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="0000000000000000000000000b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB], 0x3c}}, 0x0) r5 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r5, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) ioctl$DRM_IOCTL_ADD_CTX(r5, 0xc0086420, &(0x7f0000000240)={0x0}) ioctl$DRM_IOCTL_NEW_CTX(r4, 0x40086425, &(0x7f0000000380)={r6, 0x3}) [ 916.185352][T18091] debugfs: File 'trace0' in directory 'sg0' already present! [ 916.243348][T18093] batman_adv: batadv0: Not using interface gretap826 (retrying later): interface not active 02:22:03 executing program 1: mknod$loop(&(0x7f0000000040)='./file0\x00', 0x0, 0x1) r0 = dup(0xffffffffffffffff) r1 = getpgid(0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x14152}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_GET_PROG_INFO(0xf, &(0x7f0000000100)={0xffffffffffffffff, 0xc0, &(0x7f00000001c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ""/16, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000040), 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, 0xd) ptrace$getregs(0xc, r1, 0x5, &(0x7f0000000580)=""/102) bpf$BPF_PROG_GET_FD_BY_ID(0xd, &(0x7f00000002c0)={r2}, 0xc) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000140)={0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, r2}, 0x30) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f00000010c0)={0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, r2}, 0x30) bpf$BPF_TASK_FD_QUERY(0x14, 0x0, 0x0) fcntl$lock(r0, 0x0, &(0x7f0000000240)={0x1, 0x4}) clone(0x26102900, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) mount(&(0x7f00000001c0)=ANY=[@ANYBLOB='/dev/loop1\x00'], &(0x7f0000000180)='./file0\x00', &(0x7f0000000100)='iso9660\x00', 0x9000000, 0x0) socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_int(0xffffffffffffffff, 0x6, 0x200000000000013, 0x0, 0x0) openat$vsock(0xffffff9c, &(0x7f00000000c0)='/dev/vsock\x00', 0x408d80, 0x0) [ 916.407618][T18112] netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. 02:22:03 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1accd, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 916.467005][T18114] netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. 02:22:03 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000e0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:03 executing program 1: perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0xa4, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_HEADER(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000002c0)={0x14, 0xc, 0x6, 0x5}, 0x14}}, 0x0) 02:22:03 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$VIDIOC_QUERYCTRL(r1, 0xc0445624, &(0x7f00000001c0)={0x400, 0x2, "6d9aeda55c0d9a1823d80313414abe2fb23bbcc46c60ad45404c20ebceea92b5", 0xda02, 0x9, 0x81, 0xfff, 0x160}) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) r4 = socket$inet6(0xa, 0x5, 0x0) close(r4) r5 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r5, 0x200004) r6 = socket$inet(0x2, 0x4000000805, 0x0) r7 = socket$inet_sctp(0x2, 0x5, 0x84) dup3(r6, r7, 0x0) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(0xffffffffffffffff, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r4, r5, 0x0, 0x80001d00c0d0) getsockopt$inet_sctp_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x10, &(0x7f0000000100)=@assoc_value={0x0, 0x3}, &(0x7f0000000180)=0x8) setsockopt$inet_sctp_SCTP_PEER_ADDR_PARAMS(r5, 0x84, 0x9, &(0x7f0000000280)={r8, @in6={{0xa, 0x4e22, 0x401, @loopback, 0x2}}, 0x3ff, 0x8001, 0xc6ca, 0x8, 0x9, 0xc0000000, 0x20}, 0x9c) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:22:03 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=ANY=[@ANYBLOB="3c0000001000011f000800"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB], 0x3c}}, 0x0) [ 916.677835][T18132] batman_adv: Cannot find parent device [ 916.723040][T18132] batman_adv: batadv0: Adding interface: gretap827 [ 916.739585][T18132] batman_adv: batadv0: The MTU of interface gretap827 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. [ 916.788113][T18132] batman_adv: batadv0: Not using interface gretap827 (retrying later): interface not active 02:22:03 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9000000}}}}, 0x100c) 02:22:03 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000f0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:03 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acce, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:03 executing program 1: r0 = socket$inet_udplite(0x2, 0x2, 0x88) recvmsg(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000300)=[{&(0x7f00000004c0)=""/4081, 0xff1}], 0x1}, 0x0) r1 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r1, 0x0, 0xffffff68, 0x0, 0x0, 0x800e00547) r2 = socket$inet_udplite(0x2, 0x2, 0x88) recvmsg(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000200)=[{&(0x7f0000000080)=""/57, 0x39}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}], 0x7}, 0x2) r3 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r3, 0x0, 0x27c7, 0x0, 0x0, 0x800e0050e) shutdown(r2, 0x0) r4 = socket$inet_udplite(0x2, 0x2, 0x88) recvmsg(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f00000003c0)=[{&(0x7f00000014c0)=""/102400, 0x19000}, {0x0}, {0x0}, {0x0}], 0x4}, 0x0) r5 = dup(r4) r6 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r6, 0x0, 0xfec5, 0x0, 0x0, 0x800e00505) shutdown(r5, 0x0) r7 = socket$inet6_tcp(0x1c, 0x1, 0x0) sendto$inet6(r7, &(0x7f00000000c0)="a9c3936d6ee888a2fff1dec76466cce89de782d2bef3928a50e1a8837889ff725a605aa7139b10ee8edae1428549a53ac722e62c67eb746d1739a7375040ab87fdc41f903e762c8a8b8b0a23e57e03066b343f1f2365e5732d90fc2716ef6f8a3de94b65c2243e662a4a201a8f908809dfef527a5ea60a4b974b66e1087dc2eb242ff47c2e9de07c04c51728833ffcbe", 0xffffff5a, 0x105, &(0x7f0000000000)={0xfffffffffffffea3, 0x1c, 0x2}, 0x1c) shutdown(r6, 0x0) shutdown(r3, 0x0) execve(0x0, 0x0, 0x0) [ 917.097276][T18163] batman_adv: Cannot find parent device [ 917.115921][T18163] batman_adv: batadv0: Adding interface: gretap828 02:22:03 executing program 3: perf_event_open(&(0x7f00000001c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xffffffff, 0xe, 0x0, 0x20000000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6(0xa, 0x5, 0x0) close(r1) r2 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) r3 = socket$inet6_sctp(0xa, 0x801, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) connect$inet6(r3, &(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) fremovexattr(r3, &(0x7f0000000040)=@known='trusted.overlay.redirect\x00') ftruncate(r2, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r1, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r1, r2, 0x0, 0x80001d00c0d0) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) r5 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r5, 0x1276, 0x0) getsockopt$inet6_IPV6_IPSEC_POLICY(r5, 0x29, 0x22, &(0x7f0000000340)={{{@in6=@local, @in=@remote, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in=@multicast1}, 0x0, @in=@broadcast}}, &(0x7f0000000600)=0xe8) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000640)={'batadv0\x00', r6}) sendmsg$ETHTOOL_MSG_LINKINFO_SET(0xffffffffffffffff, &(0x7f00000005c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000580)={&(0x7f0000000680)={0x118, 0x0, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@ETHTOOL_A_LINKINFO_PHYADDR={0x5}, @ETHTOOL_A_LINKINFO_HEADER={0x18, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_NAME={0x14, 0x2, 'wg0\x00'}]}, @ETHTOOL_A_LINKINFO_PHYADDR={0x5, 0x3, 0x3}, @ETHTOOL_A_LINKINFO_PHYADDR={0x5, 0x3, 0x6}, @ETHTOOL_A_LINKINFO_HEADER={0x18, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_NAME={0x14, 0x2, 'veth1_virt_wifi\x00'}]}, @ETHTOOL_A_LINKINFO_HEADER={0x5c, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_NAME={0x14, 0x2, 'ip6gretap0\x00'}, @ETHTOOL_A_HEADER_DEV_INDEX={0x8}, @ETHTOOL_A_HEADER_FLAGS={0x8, 0x3, 0x3}, @ETHTOOL_A_HEADER_FLAGS={0x8, 0x3, 0x2}, @ETHTOOL_A_HEADER_DEV_INDEX={0x8}, @ETHTOOL_A_HEADER_DEV_NAME={0x14, 0x2, 'team0\x00'}, @ETHTOOL_A_HEADER_FLAGS={0x8, 0x3, 0x2}, @ETHTOOL_A_HEADER_DEV_INDEX={0x8, 0x1, r7}]}, @ETHTOOL_A_LINKINFO_TP_MDIX_CTRL={0x5, 0x5, 0x7f}, @ETHTOOL_A_LINKINFO_HEADER={0x58, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_NAME={0x14, 0x2, 'virt_wifi0\x00'}, @ETHTOOL_A_HEADER_DEV_INDEX={0x8}, @ETHTOOL_A_HEADER_DEV_NAME={0x14, 0x2, 'veth0_to_hsr\x00'}, @ETHTOOL_A_HEADER_DEV_INDEX={0x8, 0x1, r7}, @ETHTOOL_A_HEADER_DEV_NAME={0x14, 0x2, 'veth0_virt_wifi\x00'}, @ETHTOOL_A_HEADER_DEV_INDEX={0x8}]}]}, 0x118}, 0x1, 0x0, 0x0, 0x20040010}, 0x8000800) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x34, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0x4}}}]}, 0x34}}, 0x0) [ 917.130358][T18163] batman_adv: batadv0: The MTU of interface gretap828 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 917.246797][T18163] batman_adv: batadv0: Not using interface gretap828 (retrying later): interface not active [ 917.516447][ T27] audit: type=1800 audit(1589682124.329:180): pid=18143 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=16383 res=0 02:22:04 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1accf, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:04 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000100000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:04 executing program 3: r0 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000040)='/dev/dsp\x00', 0x682, 0x0) ioctl$FS_IOC_GETVERSION(r0, 0x80087601, &(0x7f00000000c0)) perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=ANY=[@ANYBLOB="3c0000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="0000000000000009f20012800b0001006772d685e1bd00000c00028008000100", @ANYRES32=0x0, @ANYBLOB], 0x3c}}, 0x0) 02:22:04 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}}}}, 0x100c) 02:22:04 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0xfc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x4, 0x100000000}, 0x0, 0x0, 0xfffffffc}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r2 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000080)='/dev/kvm\x00', 0x0, 0x0) r3 = ioctl$KVM_CREATE_VM(r2, 0xae01, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000032000/0x18000)=nil, &(0x7f0000000280)=[@text32={0x20, &(0x7f0000000140)="b9800000c00f3235010000000f309a090000006500660f3882af724d00002ed8ddc74424008fc4bd87c7442402c43a727fc7442406000000000f011424f30f090f013a360f06c4c18d72d68366baa100ed", 0x51}], 0x1, 0x0, 0x0, 0x0) ioctl$KVM_CREATE_IRQCHIP(r3, 0xae60) r4 = ioctl$KVM_CREATE_VCPU(r3, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r3, 0x4020ae46, &(0x7f0000bf7000)={0x0, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r4, 0x4090ae82, &(0x7f00000002c0)={[0x4, 0x0, 0x40000007, 0xfffffffffffffffc, 0x0, 0x0, 0x4cb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1], 0x0, 0x1000}) ioctl$KVM_RUN(r4, 0xae80, 0x0) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000140)='ns\x00') perf_event_open(&(0x7f0000000000)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x16, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_config_ext, 0x48, 0x0, 0x0, 0x3}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$KVM_RUN(r4, 0xae80, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000040)={'wg1\x00', 0x1}) r5 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r5, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) [ 917.793332][T18194] batman_adv: Cannot find parent device [ 917.838297][T18194] batman_adv: batadv0: Adding interface: gretap829 [ 917.870642][T18194] batman_adv: batadv0: The MTU of interface gretap829 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 917.976313][T18194] batman_adv: batadv0: Not using interface gretap829 (retrying later): interface not active [ 918.051438][T18205] netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. 02:22:04 executing program 1: r0 = socket$inet_udplite(0x2, 0x2, 0x88) readv(r0, &(0x7f00000004c0)=[{&(0x7f0000000000)=""/112, 0x70}], 0x1) r1 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r1, 0x0, 0xccf3, 0x0, 0x0, 0x800e0050e) r2 = socket$inet_udplite(0x2, 0x2, 0x88) readv(r2, &(0x7f0000000500)=[{&(0x7f0000000080)=""/61, 0x3d}, {0x0}], 0x2) r3 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r3, 0x0, 0xfd1d, 0x0, 0x0, 0x800e00541) pipe2(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write(r4, &(0x7f0000000d80)="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", 0x2c63) shutdown(r2, 0x0) write(r4, &(0x7f0000000180)="82", 0x1) shutdown(r3, 0x0) execve(0x0, 0x0, 0x0) 02:22:05 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acd0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:05 executing program 3: perf_event_open(&(0x7f00000000c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x3, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x9}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) [ 918.380970][T18231] batman_adv: Cannot find parent device [ 918.418224][T18231] batman_adv: batadv0: Adding interface: gretap830 [ 918.441709][T18231] batman_adv: batadv0: The MTU of interface gretap830 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. [ 918.526314][T18231] batman_adv: batadv0: Not using interface gretap830 (retrying later): interface not active 02:22:05 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000200000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:05 executing program 3: r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) ioctl$DRM_IOCTL_ADD_BUFS(r1, 0xc0206416, &(0x7f0000000040)={0x80, 0xd22, 0x3, 0xb6a, 0x2, 0x2}) perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x401, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, 0x0, 0x2002}, [@IFLA_LINKMODE={0x5, 0x11, 0x36}]}, 0x28}}, 0x0) 02:22:05 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acd1, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:05 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe000000}}}}, 0x100c) 02:22:05 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0000000c370000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:05 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$inet6(0xa, 0x5, 0x0) close(r3) r4 = open(&(0x7f0000000240)='./file0\x00', 0x141042, 0x105) ftruncate(r4, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r3, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000caaffb)={0x0, 0x0}, &(0x7f0000000040)=0xc) r6 = socket(0x10, 0x2, 0x0) getsockopt$sock_cred(r6, 0x1, 0x11, &(0x7f0000caaffb)={0x0, 0x0, 0x0}, &(0x7f0000cab000)=0xc) lchown(&(0x7f0000000000)='./bus\x00', r5, r7) fchown(0xffffffffffffffff, 0x0, r7) sendfile(r3, r4, 0x0, 0x80001d00c0d0) getsockopt$bt_l2cap_L2CAP_OPTIONS(r4, 0x6, 0x1, &(0x7f0000000080), &(0x7f00000000c0)=0xc) r8 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r8, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000180)=ANY=[@ANYBLOB="03000000000000000000480002240000000000069078ac141400ac1408bb0d0090780000000000000000000000000000000060a840d6724e6a06479693ffbb238449c293f0f7c7caddf8737d2d9c67d473016680d9073520ce85d9e876de8a7a80afc57d52f2134b707e8c74c2c4c723dd9d4eb1d71c889ea2723f07b678af8fdf827287a07b928c9ca27d2d35afbee891ccebd1ad610333828ec2563dbfca0aa64ef8d6"], 0x100c) [ 919.184788][ T27] audit: type=1800 audit(1589682125.999:181): pid=18262 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=16381 res=0 [ 919.223927][T18270] batman_adv: Cannot find parent device 02:22:06 executing program 1: r0 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r0, 0x0, 0x8164, 0x0, 0x0, 0x800e00547) r1 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r1, 0x0, 0xa09, 0x0, 0x0, 0x800e003c6) shutdown(0xffffffffffffffff, 0x0) mknodat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1000, 0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) r3 = dup(r2) recvmsg(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)=[{&(0x7f00000000c0)=""/9, 0x9}], 0x1e}, 0x0) r4 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r4, 0x0, 0x73a0b1b, 0x0, 0x0, 0x800e0056a) shutdown(r3, 0x0) open$dir(&(0x7f0000000000)='./file0\x00', 0x0, 0x0) shutdown(r4, 0x0) [ 919.279389][T18270] batman_adv: batadv0: Adding interface: gretap831 [ 919.309245][T18270] batman_adv: batadv0: The MTU of interface gretap831 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:06 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r1, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) openat$cgroup_int(r1, &(0x7f0000000040)='cpu.weight\x00', 0x2, 0x0) [ 919.393000][T18270] batman_adv: batadv0: Not using interface gretap831 (retrying later): interface not active 02:22:06 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acd2, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 919.641798][ T27] audit: type=1800 audit(1589682126.459:182): pid=18276 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="file0" dev="sda1" ino=15813 res=0 02:22:06 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0000000c380000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:06 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000180)=ANY=[@ANYBLOB="4500005c0000fffd00069078ac14bb03059078008f00f64e0b0bb2006503c48062e0000002440c2c81ac14141f00bc55000008440c4b01e000000200000001860900000002070345000000bb549f51b1fd00"/92], 0x5c) 02:22:06 executing program 3: r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) bpf$OBJ_PIN_PROG(0x6, &(0x7f0000000380)={&(0x7f0000000240)='./file0\x00', r1}, 0x10) perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0xff, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x8) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000003c0)=ANY=[@ANYBLOB="3c0000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB="b9c64921df5cd0c39c0a9dff68a46cd4f2af69fbf8bef1a0207e88d4f7f3377be93fff88c81f82ff8ee96029e2980b5292b433c23e822db15f83a47d5db925297f72a5aa43beeb470bb28375b421e4ede8b6cc1f45"], 0x3c}}, 0x0) r3 = syz_open_dev$audion(&(0x7f0000000000)='/dev/audio#\x00', 0xffff, 0x0) setsockopt$CAIFSO_LINK_SELECT(r3, 0x116, 0x7f, &(0x7f0000000480), 0x4) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) r5 = syz_genetlink_get_family_id$ipvs(&(0x7f00000000c0)='IPVS\x00') sendmsg$IPVS_CMD_GET_DEST(r4, &(0x7f0000000340)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x8c, r5, 0x502, 0x70bd28, 0x25dfdbfc, {}, [@IPVS_CMD_ATTR_TIMEOUT_UDP={0x8, 0x6, 0x6}, @IPVS_CMD_ATTR_DEST={0x34, 0x2, 0x0, 0x1, [@IPVS_DEST_ATTR_PORT={0x6, 0x2, 0x4e20}, @IPVS_DEST_ATTR_FWD_METHOD={0x8, 0x3, 0x3}, @IPVS_DEST_ATTR_ADDR_FAMILY={0x6, 0xb, 0xa}, @IPVS_DEST_ATTR_WEIGHT={0x8, 0x4, 0x2}, @IPVS_DEST_ATTR_U_THRESH={0x8, 0x5, 0x80000001}, @IPVS_DEST_ATTR_ACTIVE_CONNS={0x8, 0x7, 0x4}]}, @IPVS_CMD_ATTR_DAEMON={0x3c, 0x3, 0x0, 0x1, [@IPVS_DAEMON_ATTR_MCAST_GROUP={0x8, 0x5, @broadcast}, @IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @private1}, @IPVS_DAEMON_ATTR_MCAST_IFN={0xffffffffffffff47, 0x2, 'team_slave_1\x00'}, @IPVS_DAEMON_ATTR_STATE={0x8}]}]}, 0x8c}, 0x1, 0x0, 0x0, 0x4000}, 0x4028010) r6 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r6, 0x1276, 0x0) fchmodat(r6, &(0x7f00000004c0)='\x00', 0x490415ce2b2dc8f6) [ 919.848511][T18312] batman_adv: Cannot find parent device [ 919.890908][T18312] batman_adv: batadv0: Adding interface: gretap832 [ 919.911435][T18312] batman_adv: batadv0: The MTU of interface gretap832 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 919.970019][T18312] batman_adv: batadv0: Not using interface gretap832 (retrying later): interface not active 02:22:06 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10000000}}}}, 0x100c) 02:22:06 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acd3, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:06 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x9) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$P9_RSETATTR(r1, &(0x7f0000000080)={0x7, 0x1b, 0x1}, 0x7) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) r5 = socket$inet(0x2, 0x4000000805, 0x0) r6 = socket$inet_sctp(0x2, 0x5, 0x84) r7 = dup3(r5, r6, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r6, 0x84, 0x64, &(0x7f0000000040)=[@in={0x2, 0x4e20, @empty}], 0x10) sendto$inet(r7, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r6, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r6, 0x84, 0x1d, &(0x7f000025e000)={0x2, [0x0, 0x0]}, &(0x7f0000a8a000)=0xc) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(r7, 0x84, 0x6c, &(0x7f000059aff8)={r8}, &(0x7f000034f000)=0x2059b000) getsockopt$inet_sctp_SCTP_PEER_ADDR_THLDS(r4, 0x84, 0x1f, &(0x7f0000000180)={r8, @in={{0x2, 0x4e20, @initdev={0xac, 0x1e, 0x1, 0x0}}}, 0xe79, 0x7}, &(0x7f00000000c0)=0x90) write$tun(r2, &(0x7f0000000240)=ANY=[@ANYBLOB="03000000d5fc00069078ac141400ac1408bb0d00907800"/50], 0x100c) 02:22:07 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000400000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 920.233522][T18344] batman_adv: Cannot find parent device [ 920.243720][T18344] batman_adv: batadv0: Adding interface: gretap833 [ 920.250668][T18344] batman_adv: batadv0: The MTU of interface gretap833 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:07 executing program 1: r0 = socket$inet_udplite(0x2, 0x2, 0x88) recvmsg(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000440)=[{&(0x7f0000000200)=""/145, 0x91}], 0x1}, 0x0) r1 = socket$inet_udplite(0x2, 0x2, 0x88) recvmsg(r1, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000140)=[{&(0x7f0000000080)=""/4, 0x4}], 0x1}, 0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) readv(r2, &(0x7f00000002c0)=[{&(0x7f0000001c00)=""/217, 0xd9}, {0x0}], 0x2) r3 = dup(r2) r4 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r4, 0x0, 0xfd1d, 0x0, 0x0, 0x800e00515) shutdown(r3, 0x0) r5 = socket$inet_udplite(0x2, 0x2, 0x88) readv(r5, &(0x7f0000000580)=[{&(0x7f0000000040)=""/28, 0x1c}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}], 0x6) r6 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r6, 0x0, 0xa1720495f3f7edd, 0x0, 0x0, 0x800e0051e) shutdown(r5, 0x0) r7 = socket$inet6_sctp(0x1c, 0x1, 0x84) connect$inet6(r7, &(0x7f0000000000)={0x1c, 0x1c, 0x3}, 0x1c) shutdown(r6, 0x0) shutdown(r4, 0x0) 02:22:07 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0xe0020, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0x4}, 0x288, 0x0, 0x0, 0x3}, 0x0, 0x3, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x20, 0x10, 0x401, 0x0, 0x40}, 0x20}}, 0x0) [ 920.289850][T18344] batman_adv: batadv0: Not using interface gretap833 (retrying later): interface not active 02:22:07 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acd4, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:07 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = socket$inet6(0xa, 0x5, 0x0) close(r1) r2 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r2, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r1, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendmsg$RDMA_NLDEV_CMD_RES_QP_GET(r2, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000380)={&(0x7f0000000300)={0x50, 0x140a, 0x1, 0x70bd27, 0x25dfdbfe, "", [@RDMA_NLDEV_ATTR_RES_LQPN={0x8, 0x15, 0x2}, @RDMA_NLDEV_ATTR_PORT_INDEX={0x8, 0x3, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_RES_LQPN={0x8, 0x15, 0x4}, @RDMA_NLDEV_ATTR_RES_LQPN={0x8, 0x15, 0x2}, @RDMA_NLDEV_ATTR_PORT_INDEX={0x8, 0x3, 0x1}, @RDMA_NLDEV_ATTR_RES_LQPN={0x8, 0x15, 0xcc7}, @RDMA_NLDEV_ATTR_RES_LQPN={0x8, 0x15, 0x3}]}, 0x50}}, 0x4000000) sendfile(r1, r2, 0x0, 0x80001d00c0d0) ioctl$PPPIOCGL2TPSTATS(r2, 0x80487436, &(0x7f0000000080)="2a3ca5d0911b3dc300341dcc4eccc731da68343a7b51be066305355faa9d8786f51180af01cebe2621149bc7c291eede99aa0cc7445d3e1427601b7944f94f1b381824dbfa892ef3d1bd1368f853a74ceb8dd7a61badcdd968ddda") r3 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000400)='./cgroup/syz0\x00', 0x200002, 0x0) sync_file_range(r0, 0x200, 0x3, 0x5) r4 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r4, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) getsockopt$EBT_SO_GET_INIT_INFO(r0, 0x0, 0x82, &(0x7f0000000200)={'filter\x00'}, &(0x7f0000000280)=0x78) socket$netlink(0x10, 0x3, 0x0) r5 = socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$sock_inet_SIOCSIFADDR(r5, 0x8914, &(0x7f0000000140)={'sit0\x00', {0x7, 0x0, @empty}}) write$tun(r4, &(0x7f0000000180)=ANY=[@ANYBLOB="e7ffffffff0000480002070000000000069078ac141400ac1408bb0d00a27800000000000000000000000000000000d9464096ecea86e0d2b3e4050000003940b9"], 0x100c) 02:22:07 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000480000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:07 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) r2 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r2, 0x1276, 0x0) recvfrom$packet(r2, &(0x7f0000000180)=""/165, 0xa5, 0x40000103, 0x0, 0x0) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) r3 = pidfd_getfd(r1, 0xffffffffffffffff, 0x0) getsockopt$TIPC_DEST_DROPPABLE(r3, 0x10f, 0x81, &(0x7f0000000040), &(0x7f00000000c0)=0x4) r4 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="3c0000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB="ae812821fabf3e2284c815835df904ccbce31428450e0052a4e2572f8b33be6610ed2f5aa76b9bc515b77deda9eb752ca33279c616da2a93d25800e0d6964b9059ef2fb8da492852b15f3631ec1b6a2d7feaeae7575935f4e2258ab7b25f3b099bca3c941b33a7afa10697f0b24af3a221137c813ec8290bc5dd7d64d4e142dba358b6acbea5a7196327bfa17ed30a5bba175f1102a41e"], 0x3c}}, 0x0) [ 920.699150][T18386] batman_adv: Cannot find parent device [ 920.728207][T18386] batman_adv: batadv0: Adding interface: gretap834 [ 920.735853][T18386] batman_adv: batadv0: The MTU of interface gretap834 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. [ 920.783111][T18386] batman_adv: batadv0: Not using interface gretap834 (retrying later): interface not active [ 920.867033][ T27] audit: type=1800 audit(1589682127.680:183): pid=18391 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=15768 res=0 02:22:07 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x11000000}}}}, 0x100c) 02:22:07 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000004c0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:07 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acd5, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:07 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, &(0x7f0000000100)={@empty, 0x0, 0x0, 0x3, 0x0, 0x4, 0x80}, 0x20) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000400)='/dev/net/tun\x00', 0x48083, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000280)=ANY=[@ANYBLOB="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"], 0x14f) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000180)='/proc/capi/capi20\x00', 0x40001, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) r5 = socket$inet(0x2, 0x4000000805, 0x0) r6 = socket$inet_sctp(0x2, 0x5, 0x84) r7 = dup3(r5, r6, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r6, 0x84, 0x64, &(0x7f0000000040)=[@in={0x2, 0x4e20, @empty}], 0x10) sendto$inet(r7, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r6, &(0x7f0000000000)="e4e612a21d640b13c15ef14d8e2e090dd3167490bb3bc9bd3aa706c3c6db44430460ba7a0c71ae87ffebcde891309a", 0x2f, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @multicast2}, 0x10) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r6, 0x84, 0x1d, &(0x7f00000001c0)=ANY=[@ANYBLOB="d08a6a80dc08936739b02efb402ca85d0c8d160b02adddcc6848dd293520d3c1dc85a0a2e4925d6d5200b0574a3042f371f69d080764873200535f9f2b5f2d66f2c09ad19cb5d6284f49fa59e0f0501e716cd918185f2f59dd0e5ad9a5abb35c387d8167f337e110a2d91baebcf4f147b02fb3dbfadb9ca2c7f55342cf34a02aa50215b82e4e4be2aee12a3738fc9de956615c271bedb54e69e54a80e3170cf78b57ddc015b2"], &(0x7f0000a8a000)=0x4) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(r7, 0x84, 0x6c, &(0x7f000059aff8), &(0x7f000034f000)=0x2059b000) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(r4, 0x84, 0x10, &(0x7f0000000080)=@sack_info={0x0, 0x101, 0x1}, &(0x7f00000000c0)=0xc) [ 921.139697][T18416] batman_adv: Cannot find parent device [ 921.190777][T18416] batman_adv: batadv0: Adding interface: gretap835 [ 921.213872][T18416] batman_adv: batadv0: The MTU of interface gretap835 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. 02:22:08 executing program 1: r0 = socket$inet_udplite(0x2, 0x2, 0x88) recvmsg(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)=[{&(0x7f00000003c0)=""/207, 0xcf}], 0x1}, 0x0) r1 = socket$inet_udplite(0x2, 0x2, 0x88) recvmsg(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000180)=[{&(0x7f0000000080)=""/150, 0x96}], 0x1}, 0x0) r2 = socket$inet_udplite(0x2, 0x2, 0x88) recvmsg(r2, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000840)=[{&(0x7f00000003c0)=""/232, 0xe8}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}], 0x8}, 0x0) r3 = dup(r2) r4 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r4, 0x0, 0xd051, 0x0, 0x0, 0x800e0053d) shutdown(r3, 0x0) r5 = socket$inet_udplite(0x2, 0x2, 0x88) readv(r5, &(0x7f0000000500), 0x58) r6 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r6, 0x0, 0x8164, 0x0, 0x0, 0x800e00547) shutdown(r5, 0x0) r7 = socket$inet6_tcp(0x1c, 0x1, 0x0) connect(r7, &(0x7f0000000040)=@in6={0x1c, 0x1c, 0x3}, 0x1c) shutdown(r6, 0x0) shutdown(r4, 0x0) [ 921.251495][ T27] audit: type=1800 audit(1589682128.070:184): pid=18404 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=15839 res=0 [ 921.284879][T18416] batman_adv: batadv0: Not using interface gretap835 (retrying later): interface not active 02:22:08 executing program 3: mremap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f0000ffe000/0x2000)=nil) r0 = perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) r2 = dup(r1) setsockopt$RXRPC_SECURITY_KEY(r2, 0x110, 0x1, &(0x7f0000000040)='lo:md5sumeth1vboxnet1\x00', 0x16) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket$inet6(0xa, 0x5, 0x0) close(r4) r5 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r5, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r4, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r4, r5, 0x0, 0x80001d00c0d0) dup3(r0, r5, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) 02:22:08 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acd6, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:08 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r2, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) r3 = syz_genetlink_get_family_id$nl80211(&(0x7f00000000c0)='nl80211\x00') getsockname$packet(0xffffffffffffffff, &(0x7f00000002c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000280)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000680)=ANY=[@ANYBLOB="480000001000050700"/18, @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c000100766574680000000018000200fd0001000000000023c0306554362dddcb892ef8051404bde5bf296e3c56e200d724f7ead1ef33adfdbe08b8c5236b93b9797b4409f6e370d1515d2e1fa63259e6d4bd05772981", @ANYRES32=0x0, @ANYBLOB="e371a01c7d83e16db1918b5328546fd0db633ad73f48121530e272e1e1c5c2d65138cf6c000062440000"], 0x5}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000240)={&(0x7f00000000c0)=@newlink={0x28, 0x10, 0x825, 0x0, 0x25dfdbfb, {0x0, 0x0, 0x0, r4, 0x0, 0x100}, [@IFLA_PROTO_DOWN={0x5, 0xa, 0x14}]}, 0x28}}, 0x0) sendmsg$NL80211_CMD_SET_WIPHY_NETNS(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x24, r3, 0x20, 0x70bd25, 0x25dfdbfb, {}, [@NL80211_ATTR_NETNS_FD={0x8, 0xdb, r1}, @NL80211_ATTR_IFINDEX={0x8, 0x3, r4}]}, 0x24}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r5, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r6 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r6, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r5, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:22:08 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000600000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 921.642620][T18447] batman_adv: Cannot find parent device [ 921.675469][T18447] batman_adv: batadv0: Adding interface: gretap836 [ 921.692062][T18447] batman_adv: batadv0: The MTU of interface gretap836 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 921.769786][T18447] batman_adv: batadv0: Not using interface gretap836 (retrying later): interface not active 02:22:08 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1f000000}}}}, 0x100c) 02:22:08 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) sendmsg$NFT_MSG_GETFLOWTABLE(r1, &(0x7f0000000100)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000000c0)={&(0x7f0000000280)={0x154, 0x17, 0xa, 0x401, 0x0, 0x0, {}, [@NFTA_FLOWTABLE_TABLE={0x9, 0x1, 'syz1\x00'}, @NFTA_FLOWTABLE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_FLOWTABLE_HOOK={0x50, 0x3, 0x0, 0x1, [@NFTA_FLOWTABLE_HOOK_NUM={0x8}, @NFTA_FLOWTABLE_HOOK_NUM={0x8}, @NFTA_FLOWTABLE_HOOK_NUM={0x8}, @NFTA_FLOWTABLE_HOOK_PRIORITY={0x8, 0x2, 0x1, 0x0, 0x8000}, @NFTA_FLOWTABLE_HOOK_DEVS={0x2c, 0x3, 0x0, 0x1, [{0x14, 0x1, 'veth0_macvtap\x00'}, {0x14, 0x1, 'syzkaller0\x00'}]}]}, @NFTA_FLOWTABLE_HANDLE={0xc, 0x5, 0x1, 0x0, 0x2}, @NFTA_FLOWTABLE_NAME={0x9, 0x2, 'syz0\x00'}, @NFTA_FLOWTABLE_HOOK={0xc0, 0x3, 0x0, 0x1, [@NFTA_FLOWTABLE_HOOK_PRIORITY={0x8, 0x2, 0x1, 0x0, 0xffffffff}, @NFTA_FLOWTABLE_HOOK_DEVS={0xa4, 0x3, 0x0, 0x1, [{0x14, 0x1, 'veth0_to_bridge\x00'}, {0x14, 0x1, 'veth0_virt_wifi\x00'}, {0x14, 0x1, 'gre0\x00'}, {0x14, 0x1, 'team_slave_1\x00'}, {0x14, 0x1, 'veth1_vlan\x00'}, {0x14, 0x1, 'syz_tun\x00'}, {0x14, 0x1, 'bond_slave_1\x00'}, {0x14, 0x1, 'virt_wifi0\x00'}]}, @NFTA_FLOWTABLE_HOOK_PRIORITY={0x8, 0x2, 0x1, 0x0, 0x1ff}, @NFTA_FLOWTABLE_HOOK_PRIORITY={0x8, 0x2, 0x1, 0x0, 0x1c6}]}]}, 0x154}, 0x1, 0x0, 0x0, 0x11}, 0x40080) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:22:08 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="3c0000001000010400000000000000000000000079505d5f169bb79378", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB], 0x3c}}, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) r2 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r2, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) io_uring_register$IORING_REGISTER_FILES(r1, 0x2, &(0x7f0000000040)=[r2], 0x1) 02:22:08 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000058650000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:08 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acd7, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 922.095360][T18482] batman_adv: Cannot find parent device [ 922.126311][T18482] batman_adv: batadv0: Adding interface: gretap837 [ 922.145266][T18482] batman_adv: batadv0: The MTU of interface gretap837 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. [ 922.173193][T18482] batman_adv: batadv0: Not using interface gretap837 (retrying later): interface not active [ 922.186397][T18485] netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. 02:22:09 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) ioctl$KVM_RUN(r4, 0xae80, 0x0) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:22:09 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) ioctl$KVM_SET_IDENTITY_MAP_ADDR(r1, 0x4008ae48, &(0x7f0000000040)=0x2) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000180)=@newlink={0xa0, 0x10, 0x401, 0x0, 0x25dfdbfb, {0x0, 0x0, 0x0, 0x0, 0x2}, [@IFLA_AF_SPEC={0x80, 0x1a, 0x0, 0x1, [@AF_INET6={0x20, 0xa, 0x0, 0x1, [@IFLA_INET6_TOKEN={0x14, 0x7, @remote}, @IFLA_INET6_ADDR_GEN_MODE={0x5, 0x8, 0x40}]}, @AF_INET6={0x5c, 0xa, 0x0, 0x1, [@IFLA_INET6_TOKEN={0x14, 0x7, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01'}, @IFLA_INET6_TOKEN={0x14, 0x7, @ipv4={[], [], @dev={0xac, 0x14, 0x14, 0x1a}}}, @IFLA_INET6_ADDR_GEN_MODE={0x5, 0x8, 0x4}, @IFLA_INET6_TOKEN={0x14, 0x7, @empty}, @IFLA_INET6_TOKEN={0x14, 0x7, @dev={0xfe, 0x80, [], 0xd}}]}]}]}, 0xa0}}, 0x0) 02:22:09 executing program 1: r0 = socket$inet_udplite(0x2, 0x2, 0x88) recvmsg(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000300)=[{&(0x7f00000004c0)=""/4081, 0xff1}], 0x1}, 0x0) r1 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r1, 0x0, 0xffffff68, 0x0, 0x0, 0x800e00547) r2 = socket$inet_udplite(0x2, 0x2, 0x88) recvmsg(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000200)=[{&(0x7f0000000080)=""/57, 0x39}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}], 0x7}, 0x2) r3 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r3, 0x0, 0x27c7, 0x0, 0x0, 0x800e0050e) shutdown(r2, 0x0) r4 = socket$inet_udplite(0x2, 0x2, 0x88) recvmsg(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f00000003c0)=[{&(0x7f00000014c0)=""/102400, 0x19000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}], 0x6}, 0x42) r5 = dup(r4) r6 = socket$inet_udplite(0x2, 0x2, 0x88) recvfrom$inet(r6, 0x0, 0xfec5, 0x0, 0x0, 0x800e00505) shutdown(r5, 0x0) r7 = socket$inet6_tcp(0x1c, 0x1, 0x0) sendto$inet6(r7, &(0x7f00000000c0)="a9c3936d6ee888a2fff1dec76466cce89de782d2bef3928a50e1a8837889ff725a605aa7139b10ee8edae1428549a53ac722e62c67eb746d1739a7375040ab87fdc41f903e762c8a8b8b0a23e57e03066b343f1f2365e5732d90fc2716ef6f8a3de94b65c2243e662a4a201a8f908809dfef527a5ea60a4b974b66e1087dc2eb242ff47c2e9de07c04c51728833ffcbe", 0xffffff5a, 0x105, &(0x7f0000000000)={0xfffffffffffffea3, 0x1c, 0x2}, 0x1c) shutdown(r6, 0x0) shutdown(r3, 0x0) execve(0x0, 0x0, 0x0) 02:22:09 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)=ANY=[@ANYBLOB="030000000000009078ac141400ac1408bb0d00907800000000000000fcffffff00"/50], 0x100c) 02:22:09 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000680000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:09 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acd8, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:09 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000180)=ANY=[@ANYBLOB="3c0000001000000800"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB="0f4c56ba22b23ad16f4c0b20abe533fcb532863222f363e94e2f0f88ebd404b5215e481dfeee305f2259f01a1c3b9cbc1384e49602ecbe35a89ef42a03b938462c9ea29a8212dc008df69aa36bb4c7aed37149b17543abcf89dc763634542971c11e37a1736e225f09ee7a46484a062c0ff3854d1e4fdc674a3031b54d284d55829b9bf69d57f7"], 0x3c}}, 0x0) [ 922.680922][T18530] batman_adv: Cannot find parent device [ 922.701982][T18530] batman_adv: batadv0: Adding interface: gretap838 [ 922.708994][T18530] batman_adv: batadv0: The MTU of interface gretap838 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. [ 922.781360][T18530] batman_adv: batadv0: Not using interface gretap838 (retrying later): interface not active 02:22:09 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20000000}}}}, 0x100c) 02:22:09 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) syz_init_net_socket$x25(0x9, 0x5, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) 02:22:09 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = socket$inet6(0xa, 0x5, 0x0) close(r1) r2 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r2, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r1, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r1, r2, 0x0, 0x80001d00c0d0) getsockopt$netrom_NETROM_IDLE(r2, 0x103, 0x7, &(0x7f0000000080)=0x70e, &(0x7f00000000c0)=0x4) r3 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) r4 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r4, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r5 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r5, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r4, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:22:09 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acd9, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:09 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000006c0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:09 executing program 3: r0 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r0, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f0000000200)={0x30, 0x5, 0x0, {0x0, 0x6, 0x7, 0x6}}, 0x30) sysfs$3(0x3) perf_event_open(&(0x7f0000000180)={0x0, 0x70, 0x0, 0x0, 0x0, 0x1, 0x0, 0x7f, 0x1850, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, @perf_config_ext, 0x0, 0x1, 0x0, 0x7}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$EVIOCGNAME(0xffffffffffffffff, 0x80404506, &(0x7f00000004c0)=""/92) r1 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=ANY=[@ANYBLOB="3c00000010ff0100"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB], 0x3c}}, 0x0) r2 = socket$inet6(0xa, 0x800, 0x59c) sendmsg$IPSET_CMD_ADD(0xffffffffffffffff, &(0x7f0000000480)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000440)={&(0x7f0000000380)={0x94, 0x9, 0x6, 0x801, 0x0, 0x0, {0xa, 0x0, 0x1}, [@IPSET_ATTR_PROTOCOL={0x5}, @IPSET_ATTR_ADT={0x20, 0x8, 0x0, 0x1, [{0xc, 0x7, 0x0, 0x1, @IPSET_ATTR_CIDR={0x5, 0x3, 0xff}}, {0x10, 0x7, 0x0, 0x1, @IPSET_ATTR_SKBMARK={0xc, 0x1b, 0x1, 0x0, 0xfffffffffffffff7}}]}, @IPSET_ATTR_LINENO={0x8, 0x9, 0x1, 0x0, 0x73a3eaa8}, @IPSET_ATTR_LINENO={0x8, 0x9, 0x1, 0x0, 0x22fb}, @IPSET_ATTR_ADT={0x38, 0x8, 0x0, 0x1, [{0xc, 0x7, 0x0, 0x1, @IPSET_ATTR_PORT_TO={0x6, 0x5, 0x1, 0x0, 0x4e23}}, {0x10, 0x7, 0x0, 0x1, @IPSET_ATTR_NAMEREF={0x9, 0x13, 'syz2\x00'}}, {0xc, 0x7, 0x0, 0x1, @IPSET_ATTR_SKBPRIO={0x8, 0x1c, 0x1, 0x0, 0x400}}, {0xc, 0x7, 0x0, 0x1, @IPSET_ATTR_PORT={0x6, 0x4, 0x1, 0x0, 0x4e20}}]}, @IPSET_ATTR_PROTOCOL={0x5}, @IPSET_ATTR_LINENO={0x8, 0x9, 0x1, 0x0, 0x553}]}, 0x94}, 0x1, 0x0, 0x0, 0x1}, 0x8000) close(r2) r3 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r3, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r2, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) socket$netlink(0x10, 0x3, 0x15) sendfile(r2, r3, 0x0, 0x80001d00c0d0) r4 = openat$pfkey(0xffffffffffffff9c, &(0x7f0000000240)='/proc/self/net/pfkey\x00', 0x181240, 0x0) getsockopt$EBT_SO_GET_INIT_INFO(r4, 0x0, 0x82, &(0x7f0000000280)={'broute\x00'}, &(0x7f0000000300)=0x78) accept4$packet(r3, &(0x7f0000000040)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @local}, &(0x7f00000000c0)=0x14, 0x80000) [ 923.037824][T18554] batman_adv: Cannot find parent device [ 923.084083][T18554] batman_adv: batadv0: Adding interface: gretap839 [ 923.105013][ T27] audit: type=1800 audit(1589682129.920:185): pid=18567 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=15824 res=0 02:22:09 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) r2 = socket$inet6(0xa, 0x5, 0x0) close(r2) r3 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r3, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r2, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r2, r3, 0x0, 0x80001d00c0d0) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) munlock(&(0x7f0000ffc000/0x2000)=nil, 0x2000) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r4, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x1000}, [@IFLA_XDP={0x1c, 0x2b, 0x0, 0x1, [@IFLA_XDP_FD={0x8, 0x1, r1}, @IFLA_XDP_FLAGS={0x8, 0x3, 0x4}, @IFLA_XDP_FLAGS={0x8}]}]}, 0x3c}}, 0x0) [ 923.114259][T18554] batman_adv: batadv0: The MTU of interface gretap839 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:10 executing program 1: [ 923.257511][T18554] batman_adv: batadv0: Not using interface gretap839 (retrying later): interface not active [ 923.360975][ T27] audit: type=1800 audit(1589682130.180:186): pid=18550 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=15804 res=0 02:22:10 executing program 1: 02:22:10 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000740000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:10 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acda, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:10 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40000000}}}}, 0x100c) 02:22:10 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=@newlink={0x28, 0x10, 0x100, 0xfffffffd, 0x25dfdbfd, {}, [@IFLA_WEIGHT={0x8, 0xf, 0x5}]}, 0x28}}, 0x24008054) 02:22:10 executing program 1: [ 923.670055][T18602] batman_adv: Cannot find parent device [ 923.679385][T18602] batman_adv: batadv0: Adding interface: gretap840 [ 923.687732][T18602] batman_adv: batadv0: The MTU of interface gretap840 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:10 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$inet6(0xa, 0x2, 0x0) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) r5 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000)='/dev/ptmx\x00', 0x0, 0x0) io_setup(0x8, &(0x7f0000000600)=0x0) r7 = syz_open_procfs(0x0, &(0x7f00000001c0)='fd/3\x00') io_submit(r6, 0x2, &(0x7f0000000200)=[&(0x7f0000000040)={0x0, 0x0, 0x0, 0x5, 0x0, r7, 0x0}, &(0x7f0000000180)={0x0, 0x0, 0x0, 0x5, 0x9, r1, &(0x7f0000000380)="425d2112472710fd441a9a3be9bf06d967811b74f91eaab6a6604698909175e54ebb1efdb2f75d8a83f0edc8910d31e5c677d49f799ffb2e04d94b075fbc878e194a891fa57291363f9b64f2dda2bb32df87c6f31b91989b618a7a485a21", 0x5e, 0x6, 0x0, 0x3}]) r8 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r8, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) io_cancel(r6, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x3, 0x240, r0, &(0x7f0000000280)="a97fbde5224fadc906734c1288ce96be87f60813fec10fd0938a2fd69b2e2f247f8dd8922fe2d12bda8d3395f288c59b38d5681ed7a5742143ebde7667f46412db8a37d93a0b41eb55c628dbb3c23df9550d69ac924aebfcd3e13eb0c6bc18057cc7a1b942811a1305f08a6f80982e7a626f2b2dfe9b66c8b9730af9f59bcf7c650c10645b55f77eba09d8c9190c82532f0a7e10ed77ee8afce9f19498016fee17d3212d41590bc449807bea6cb66540f3f8d09f5456b1ddf5af6ba4cbc725ac39cf9fff4f718a5d38797b", 0xcb, 0x8, 0x0, 0x3, r8}, &(0x7f00000000c0)) ioctl$TCSETS(r5, 0x40045431, &(0x7f00003b9fdc)={0x0, 0x0, 0x0, 0x0, 0x0, "000072000032eb00"}) ioctl$TIOCGPTPEER(r5, 0x5441, 0x0) r9 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r9, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000100)=ANY=[@ANYBLOB="03000000000000000000480002240000000400069078ac85ff00ac1408bb0d00907800000000f67fc8cf429b1a3b65552eed4e62115ec916534c5aa24232"], 0x100c) [ 923.748296][T18602] batman_adv: batadv0: Not using interface gretap840 (retrying later): interface not active 02:22:10 executing program 1: 02:22:10 executing program 3: r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) bind$netlink(r1, &(0x7f0000000180)={0x10, 0x0, 0x25dfdbff, 0x10000}, 0xc) perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r3, 0x1276, 0x0) r4 = openat$nvram(0xffffffffffffff9c, &(0x7f0000000040)='/dev/nvram\x00', 0x20c841, 0x0) getsockopt$inet_sctp_SCTP_GET_ASSOC_NUMBER(r4, 0x84, 0x1c, &(0x7f00000000c0), &(0x7f0000000100)=0x4) ioctl$UI_SET_KEYBIT(r3, 0x40045565, 0x14b) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) 02:22:10 executing program 1: 02:22:10 executing program 1: 02:22:10 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000007a0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:10 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acdb, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:10 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40020000}}}}, 0x100c) 02:22:11 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r4 = socket$inet6(0xa, 0x5, 0x0) close(r4) r5 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r5, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r4, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r4, r5, 0x0, 0x80001d00c0d0) write$tun(r5, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x5, 0x4, 0x0, 0x0, 0x28, 0x0, 0x0, 0x1f, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000}}}}, 0x32) 02:22:11 executing program 1: 02:22:11 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000000810000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:11 executing program 1: 02:22:11 executing program 3: perf_event_open(&(0x7f00000002c0)={0x7, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x10057, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = openat$null(0xffffffffffffff9c, &(0x7f0000000000)='/dev/null\x00', 0x200080, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) getsockopt$inet_IP_IPSEC_POLICY(r1, 0x0, 0x10, &(0x7f0000000340)={{{@in=@dev, @in6=@remote, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in=@local}, 0x0, @in6=@local}}, &(0x7f0000000040)=0xe8) r3 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r3, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) getsockopt$sock_cred(r3, 0x1, 0x11, &(0x7f00000000c0)={0x0, 0x0, 0x0}, &(0x7f0000000100)=0xc) write$P9_RGETATTR(r0, &(0x7f0000000440)={0xa0, 0x19, 0x1, {0x0, {0x10, 0x0, 0x2004}, 0x20, r2, r4, 0x7, 0x1f, 0x8, 0x800, 0x401, 0x2, 0x3, 0x80, 0x8, 0x28d9, 0x100, 0x2, 0x7, 0x7, 0x7}}, 0xa0) r5 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r5, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000006c0)=ANY=[@ANYBLOB="3c0000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB="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"], 0x3c}}, 0x0) [ 924.437323][T18651] batman_adv: Cannot find parent device 02:22:11 executing program 1: [ 924.493309][T18651] batman_adv: batadv0: Adding interface: gretap841 [ 924.510981][T18651] batman_adv: batadv0: The MTU of interface gretap841 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. 02:22:11 executing program 1: [ 924.613850][T18651] batman_adv: batadv0: Not using interface gretap841 (retrying later): interface not active 02:22:11 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acdc, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 924.651217][ T27] audit: type=1800 audit(1589682131.470:187): pid=18657 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=15808 res=0 02:22:11 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) ioctl$FIGETBSZ(r0, 0x2, &(0x7f0000000040)) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) 02:22:11 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) r4 = syz_open_dev$vcsn(&(0x7f0000000080)='/dev/vcs#\x00', 0x7, 0x2000) ioctl$KVM_GET_REGS(r4, 0x8090ae81, &(0x7f0000000180)) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) 02:22:11 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00ffffa8880000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 924.986872][T18681] batman_adv: Cannot find parent device [ 925.019177][T18681] batman_adv: batadv0: Adding interface: gretap842 [ 925.027094][T18681] batman_adv: batadv0: The MTU of interface gretap842 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 925.055718][T18681] batman_adv: batadv0: Not using interface gretap842 (retrying later): interface not active 02:22:11 executing program 1: 02:22:11 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80040200}}}}, 0x100c) 02:22:12 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r4, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) ioctl$SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE(r4, 0xc0045520, &(0x7f0000000080)=0x5fc) 02:22:12 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f00000002c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000280)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000680)=ANY=[@ANYBLOB="480000001000050700"/18, @ANYRES32=r1, @ANYBLOB="0000000000000000280012000c000100766574680000000018000200fd0001000000000023c0306554362dddcb892ef8051404bde5bf296e3c56e200d724f7ead1ef33adfdbe08b8c5236b93b9797b4409f6e370d1515d2e1fa63259e6d4bd05772981", @ANYRES32=0x0, @ANYBLOB="e371a01c7d83e16db1918b5328546fd0db633ad73f48121530e272e1e1c5c2d65138cf6c000062440000"], 0x5}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000240)={&(0x7f00000000c0)=@newlink={0x28, 0x10, 0x825, 0x0, 0x0, {0x0, 0x0, 0x0, r1, 0x0, 0x34315}, [@IFLA_PROTO_DOWN={0x5, 0xa, 0x14}]}, 0x28}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x20, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, r1}}, 0x20}}, 0x0) [ 925.176618][ T27] audit: type=1800 audit(1589682131.990:188): pid=18686 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=15767 res=0 02:22:12 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00ffffff9e0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:12 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acdd, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:12 executing program 1: 02:22:12 executing program 1: [ 925.461187][T18719] batman_adv: Cannot find parent device [ 925.494140][T18719] batman_adv: batadv0: Adding interface: gretap843 02:22:12 executing program 1: [ 925.510057][T18719] batman_adv: batadv0: The MTU of interface gretap843 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. [ 925.575008][T18719] batman_adv: batadv0: Not using interface gretap843 (retrying later): interface not active 02:22:12 executing program 1: 02:22:12 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00ffffffc30000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:12 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000080)=ANY=[@ANYBLOB="f8ffffff000200000000480a0224000000000b069078ac141400ac1408bb0d00727832745a47733a3b12dd2f0000000000000000000000008db000005ad8f65431f7813e3c33696693325f7cb2157018595bab36c97f0400000000000000adc75a5c451faaf9555c7b3b2a6595f9c56a2f1161c73920fce1bea144c7fdadd5bda181eb4a0b851cd2181db6d7c99643cd98e05fe7c6cee871964cd95e16344f1c9f94042b81267b40ee11f65cb3"], 0x100c) 02:22:12 executing program 1: 02:22:12 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x88000000}}}}, 0x100c) 02:22:12 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acde, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:12 executing program 1: 02:22:12 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) write$FUSE_INTERRUPT(r1, &(0x7f0000000200)={0x10, 0x0, 0x1}, 0x10) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) ioctl$PPPIOCSDEBUG(r1, 0x40047440, &(0x7f0000000040)=0x20) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r3, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) r4 = syz_genetlink_get_family_id$tipc2(&(0x7f00000000c0)='TIPCv2\x00') sendmsg$TIPC_NL_MON_PEER_GET(r3, &(0x7f0000000180)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000100)={&(0x7f00000004c0)={0x16c, r4, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@TIPC_NLA_NET={0x34, 0x7, 0x0, 0x1, [@TIPC_NLA_NET_ID={0x8, 0x1, 0x10000}, @TIPC_NLA_NET_ADDR={0x8, 0x2, 0x3}, @TIPC_NLA_NET_NODEID={0xc, 0x3, 0x4}, @TIPC_NLA_NET_NODEID={0xc, 0x3, 0xddf}, @TIPC_NLA_NET_ID={0x8, 0x1, 0x7}]}, @TIPC_NLA_LINK={0x124, 0x4, 0x0, 0x1, [@TIPC_NLA_LINK_PROP={0x1c, 0x7, 0x0, 0x1, [@TIPC_NLA_PROP_TOL={0x8, 0x2, 0xff}, @TIPC_NLA_PROP_TOL={0x8, 0x2, 0x1}, @TIPC_NLA_PROP_PRIO={0x3, 0x1, 0x3}]}, @TIPC_NLA_LINK_NAME={0x9, 0x1, 'syz1\x00'}, @TIPC_NLA_LINK_NAME={0x9, 0x1, 'syz1\x00'}, @TIPC_NLA_LINK_PROP={0x54, 0x7, 0x0, 0x1, [@TIPC_NLA_PROP_PRIO={0x8, 0x1, 0xf}, @TIPC_NLA_PROP_WIN={0x8, 0x3, 0x120000}, @TIPC_NLA_PROP_MTU={0x8, 0x4, 0xf121}, @TIPC_NLA_PROP_MTU={0x8, 0x4, 0x1}, @TIPC_NLA_PROP_MTU={0x8, 0x4, 0x9}, @TIPC_NLA_PROP_MTU={0x8, 0x4, 0x6b}, @TIPC_NLA_PROP_WIN={0x8, 0x3, 0x2}, @TIPC_NLA_PROP_MTU={0x8, 0x4, 0x8}, @TIPC_NLA_PROP_TOL={0x8, 0x2, 0x4}, @TIPC_NLA_PROP_TOL={0x8, 0x2, 0x6}]}, @TIPC_NLA_LINK_NAME={0x9, 0x1, 'syz0\x00'}, @TIPC_NLA_LINK_PROP={0x0, 0x7, 0x0, 0x1, [@TIPC_NLA_PROP_WIN={0x0, 0x3, 0x289bcc50}, @TIPC_NLA_PROP_MTU={0x0, 0x4, 0x3}, @TIPC_NLA_PROP_MTU={0x0, 0x4, 0x1}, @TIPC_NLA_PROP_TOL={0x0, 0x2, 0x3}, @TIPC_NLA_PROP_MTU, @TIPC_NLA_PROP_PRIO={0x0, 0x1, 0x1}, @TIPC_NLA_PROP_WIN]}, @TIPC_NLA_LINK_PROP={0x44, 0x7, 0x0, 0x1, [@TIPC_NLA_PROP_PRIO={0x8, 0x1, 0x1b}, @TIPC_NLA_PROP_WIN={0x8, 0x3, 0x7}, @TIPC_NLA_PROP_PRIO={0x8, 0x1, 0x1b}, @TIPC_NLA_PROP_WIN={0x8, 0x3, 0x5}, @TIPC_NLA_PROP_TOL={0x8, 0x2, 0x8}, @TIPC_NLA_PROP_TOL={0x0, 0x2, 0x2}, @TIPC_NLA_PROP_PRIO={0x8, 0x1, 0x19}, @TIPC_NLA_PROP_PRIO={0x8, 0x1, 0x3}]}, @TIPC_NLA_LINK_PROP={0x34, 0x7, 0x0, 0x1, [@TIPC_NLA_PROP_WIN={0x8, 0x3, 0x3ff}, @TIPC_NLA_PROP_WIN={0x8, 0x3, 0x9000000}, @TIPC_NLA_PROP_TOL={0x0, 0x2, 0x67a7}, @TIPC_NLA_PROP_MTU={0x8, 0x4, 0x10007}, @TIPC_NLA_PROP_PRIO={0x8, 0x1, 0x80006}, @TIPC_NLA_PROP_MTU={0x8, 0x4, 0x3}]}]}]}, 0x16c}, 0x1, 0x0, 0x0, 0x4000}, 0x40001) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) 02:22:12 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f00000000c0)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x5, 0x4, 0x0, 0x0, 0x28, 0x0, 0x0, 0x0, 0x6, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80}}}}, 0x32) 02:22:12 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000003c40000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:12 executing program 1: [ 926.087953][T18767] batman_adv: Cannot find parent device [ 926.125122][T18767] batman_adv: batadv0: Adding interface: gretap844 02:22:13 executing program 1: [ 926.151852][T18767] batman_adv: batadv0: The MTU of interface gretap844 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. [ 926.255501][T18767] batman_adv: batadv0: Not using interface gretap844 (retrying later): interface not active 02:22:13 executing program 1: 02:22:13 executing program 1: 02:22:13 executing program 5: [ 926.490715][ T27] audit: type=1800 audit(1589682133.300:189): pid=18776 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=15811 res=0 02:22:13 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acdf, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:13 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xb80b0000}}}}, 0x100c) 02:22:13 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=ANY=[@ANYBLOB="3c0000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000000c00028008000100"/25, @ANYRES32=0x0, @ANYBLOB], 0x3c}}, 0x0) 02:22:13 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000003fdec0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:13 executing program 1: [ 926.679357][T18801] batman_adv: Cannot find parent device [ 926.704899][T18801] batman_adv: batadv0: Adding interface: gretap845 02:22:13 executing program 5: 02:22:13 executing program 1: [ 926.722969][T18801] batman_adv: batadv0: The MTU of interface gretap845 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. [ 926.797558][T18801] batman_adv: batadv0: Not using interface gretap845 (retrying later): interface not active 02:22:13 executing program 5: [ 926.838034][T18812] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. 02:22:13 executing program 1: 02:22:13 executing program 5: 02:22:13 executing program 1: [ 927.034946][T18822] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. 02:22:13 executing program 5: 02:22:13 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ace0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:14 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe8030000}}}}, 0x100c) 02:22:14 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00fffffff00000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:14 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x9}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r1, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) ioctl$IOC_PR_REGISTER(r1, 0x401870c8, &(0x7f0000000040)={0x7fffffff, 0x0, 0x1}) 02:22:14 executing program 1: 02:22:14 executing program 5: 02:22:14 executing program 1: 02:22:14 executing program 5: [ 927.357300][T18844] batman_adv: Cannot find parent device [ 927.395446][T18844] batman_adv: batadv0: Adding interface: gretap846 02:22:14 executing program 1: [ 927.438470][T18844] batman_adv: batadv0: The MTU of interface gretap846 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 927.540281][T18844] batman_adv: batadv0: Not using interface gretap846 (retrying later): interface not active 02:22:14 executing program 5: 02:22:14 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) sendmmsg$alg(r1, &(0x7f0000001c00)=[{0x0, 0x0, &(0x7f0000000040), 0x0, &(0x7f0000000340)=[@iv={0x68, 0x117, 0x2, 0x4e, "46c015b3226d0cbaf9a01a762e91ab588d7c65da54f0f5e694d159890c74eb60a65e5686ac40ceaf8b240cc48af11de88b9eb2bc41fd2c22f89de9a2f81a28fc7bca9a81b8d5a7f9df586aa54fad"}, @assoc={0x18, 0x117, 0x4, 0x100}, @iv={0x80, 0x117, 0x2, 0x69, "4c212e9ce17b26df8f4dabe2600f5f6c1d0ff92597b9ccda647157d444abe8c3f3bbd2ede9ca700b5d8fedb5076790b89a5f16de65efe7caa871b707779d3cc57264881e67557a417d2c856b3bf4ca9b69a0f20b6961245e0433bbd782c78085691aff49b35d1294ed"}, @iv={0x98, 0x117, 0x2, 0x82, "49f2fc27cbca9eceb3fa98125a2fa16d8ea8985d1b0fc1b2b412a48de3550fafefacd18460fd6e03e0da23f1850f9cfd581d5d4854b5a37fad7fdb4cf9f9a8833e63daadec697720312c96838815022da1450282ea7f50104e1f8829b6b68af60e2d61fe0e347efb3efed8be9ddf5537421b18c509e88bf3f8cfb00de1bd57191ee6"}], 0x198, 0x40c0}, {0x0, 0x0, &(0x7f0000000240)=[{&(0x7f0000000180)="9a924c61866c6fb803fff9a8bdaa2b0a7383fdce43d80d0ace94663a4ced1f21cf727b699b622d8947693c32", 0x2c}, {&(0x7f00000001c0)="16e52ab8a46afcfe2f3a78ae7c6f740a5330d39a639cf91d8deb335d3f2959895006b1d138b95b157ef33c467a7d5b46108f6c72be3531496cc34eda3e3f63b11b492b02e736e6672ebc8aba8ba747f36e9b082d4296824361dabcc965033887d34d2f5d5937", 0x66}], 0x2, &(0x7f0000001e40)=[@iv={0x18, 0x117, 0x2, 0x1, "b9"}, @assoc={0x18, 0x117, 0x4, 0x10000}, @op={0x18, 0x117, 0x3, 0x1}, @iv={0xb0, 0x117, 0x2, 0x9b, "67cd9d9d20fc62580c45e34bfdb3edc6ea6ecf439600cc8a467c5df512f8abdee1b1cc0a2e14955bdecd0ba1d53baeb479a008820328ed96906a0060b2de46fd019e0c144557ba781bd1b61a95ebc681e0f0a599ea91cb4bdb67253badc3901817c7458065d4fdad9f129f45dd86dbb7c36db02cebece78cbbcfadf37e40f48d7f1615e51cf873a376880e82145a9c8425faab04133035441b0432"}, @iv={0x1018, 0x117, 0x2, 0x1000, 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0x14f8, 0x40000}, {0x0, 0x0, &(0x7f0000000280), 0x0, &(0x7f00000018c0)=[@assoc={0x18, 0x117, 0x4, 0xfffffffd}, @iv={0xa8, 0x117, 0x2, 0x91, "3a9cea0da8f6f0d557f15781af35deb34587f3e64184411f1f0b25186c2a6628d9d1c9e4abbdf94b6fe0e2b55c505a7e2809ffddd09fdfbf4fc68215a8487ee31ff7da5460fe2f0156aba22f8f1d94552b5b81ce9b4929811b3d52e4718e52def15ef2c3000000d193ff7d19ca1f1ea9dfc2ecaf77af5ea38e30150d4b51ae946dc6b6b643f346a03d67bcb181feb0db40"}], 0xc0, 0x4000010}, {0x0, 0x0, &(0x7f0000001a80)=[{&(0x7f0000001980)="f8d3b2551c8bd8844838c145d9939eedbd6c18a991fb598e945394502ebe7db04a3cc63382dac9522f77b363dea5f164da721bf4edf7d87ff680f47f287177cee46705cb0299b6f10faccba46eff299d068d81f450c0d0d2da4f283f1f785fad259f91cef51b2d", 0x67}, {&(0x7f0000001a00)="696dc061cd52be1c3d428e1449b3ab88acbc023941d16ba712e829d8a8cb59c904cb4e8532dbcee52713fa21a6e5745d42b1f46145180913f14c58a121ba404cfc0c279a99b92c3ffcd111637b90c72f3b8897da377612930db1c1bca4519fa2da758c", 0x63}], 0x2, &(0x7f0000000500)=ANY=[@ANYBLOB="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"], 0x158, 0x24000093}], 0x4, 0x40000000) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) r2 = socket$inet6(0xa, 0x5, 0x0) close(r2) r3 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r3, 0x1276, 0x0) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) ioctl$SNDRV_PCM_IOCTL_WRITEI_FRAMES(r4, 0x40184150, &(0x7f0000001e00)={0x0, &(0x7f0000001d80)="6177520c3e5c98dac3f13729774b13da86aebfa86effba8e57940be59cd89bdf74a4450ba5485a2a5164472bba3600ec4bbadbde850acd04e915cac255fe58b7cf75a64d731a75fd88ef4ee4ad35c21648be96b422bfb256900693c7cf345ecfe1453328102dcc080a9f38709504261a308ba6e5c136b1d65d", 0x79}) ioctl$SG_GET_SG_TABLESIZE(r3, 0x227f, &(0x7f0000001d40)) r5 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r5, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r2, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r2, r5, 0x0, 0x80001d00c0d0) setsockopt$SO_TIMESTAMP(r5, 0x1, 0x23, &(0x7f0000001d00)=0xb9e5, 0x4) 02:22:14 executing program 1: 02:22:14 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ace1, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:14 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf4010000}}}}, 0x100c) 02:22:14 executing program 5: 02:22:14 executing program 1: 02:22:14 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00fffffffc0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:14 executing program 5: [ 928.067516][ T27] audit: type=1800 audit(1589682134.880:190): pid=18883 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=15795 res=0 [ 928.105710][T18888] batman_adv: Cannot find parent device 02:22:14 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$nl_route(0x10, 0x3, 0x0) r0 = socket$inet6(0xa, 0x5, 0x0) r1 = socket$inet6(0xa, 0x5, 0x0) close(r1) r2 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r2, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r1, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r1, r2, 0x0, 0x80001d00c0d0) socket$inet6(0xa, 0x5, 0x0) close(0xffffffffffffffff) r3 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r3, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r3, 0x0, 0x80001d00c0d0) ioctl$USBDEVFS_RESET(r3, 0x5514) r4 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r4, 0x1276, 0x0) fsconfig$FSCONFIG_SET_FLAG(r4, 0x0, &(0x7f0000000040)='rw\x00', 0x0, 0x0) 02:22:14 executing program 1: [ 928.128297][T18888] batman_adv: batadv0: Adding interface: gretap847 [ 928.142886][T18888] batman_adv: batadv0: The MTU of interface gretap847 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:15 executing program 5: [ 928.256569][T18888] batman_adv: batadv0: Not using interface gretap847 (retrying later): interface not active 02:22:15 executing program 1: 02:22:15 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$nl_route(0x10, 0x3, 0x0) r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=ANY=[@ANYBLOB="300000002100050026bd254a00200809aa63f7d2d5991501a7ec6c7a0002160000001400023ecf9339ffffffffffffff0000000000bb"], 0x30}}, 0x2000c004) 02:22:15 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00fffffffe0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:15 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ace2, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:15 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfdffffff}}}}, 0x100c) 02:22:15 executing program 5: 02:22:15 executing program 1: 02:22:15 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0088a8ffff0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:15 executing program 5: 02:22:15 executing program 1: [ 928.750500][T18931] batman_adv: Cannot find parent device [ 928.771160][T18931] batman_adv: batadv0: Adding interface: gretap848 [ 928.819019][T18931] batman_adv: batadv0: The MTU of interface gretap848 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:15 executing program 5: [ 928.874869][T18931] batman_adv: batadv0: Not using interface gretap848 (retrying later): interface not active 02:22:15 executing program 1: 02:22:15 executing program 3: r0 = perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x800000000}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) write(r0, &(0x7f0000000180)="1a38a99cf61cd9a02f4625f137f0dbf69fd46cd0f247f87d7a7a90a88812b3423d8c20197e4e29d8f301dc2a7de2deb05f371cfc04ba26da7596abb7b83852b6a51d2951d5d67f7b7087ccab239fdcce3031ed978eaa5ba7819565558fc567d6457031b752d00c2059b5e3efb26b10155d0d00fa0a67224b4dca2c39838b169dccff5913b24eef1fa61816f1c61e02c670b711736fdc11b4f7a70a1e1c176d82bfdf9663e5059af9e0004cd48c32af738ae3937068cc260174cf4c42aca66a77b292acd631", 0xc5) r1 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) 02:22:15 executing program 5: 02:22:15 executing program 1: 02:22:16 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ace3, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:16 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfeffffff}}}}, 0x100c) 02:22:16 executing program 5: 02:22:16 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="007fffffff0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:16 executing program 1: 02:22:16 executing program 5: 02:22:16 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$nl_route(0x10, 0x3, 0x0) r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) r2 = socket$inet6(0xa, 0x2, 0xf7) close(r2) r3 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r3, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r2, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r2, r3, 0x0, 0x80001d00c0d0) getsockopt$inet_IP_XFRM_POLICY(0xffffffffffffffff, 0x0, 0x11, &(0x7f0000000180)={{{@in6=@remote, @in=@multicast1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@mcast2}, 0x0, @in=@empty}}, &(0x7f0000000280)=0xfffffffffffffeaa) r5 = socket$inet6(0xa, 0x5, 0x0) close(r5) open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) sendmsg$nl_route(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000480)=ANY=[@ANYBLOB="6c0000001200000225bd7000fcdbdf2507000000", @ANYRES32=r4, @ANYBLOB="0a0000000800000024002200f44cb6d0bec25c59e885e14e9314008c0ec7e544154c93ba19c6b24dcf7159c408000500", @ANYRES32=0x0, @ANYBLOB="a78b3a2f188c1300dca0497f11e4900d0a22df8f93a7105f07dd46bd66920d5353030177000975ce970771bcfca40082ec63eb9408326ef9434e5517bf60663cddd02d76fdff3486a433ee3ea1ccded90e87", @ANYRES32=0x0, @ANYBLOB="08001e0009000000080023000800000008002900ec340000"], 0x6c}}, 0x0) openat$nullb(0xffffffffffffff9c, &(0x7f0000000040)='/dev/nullb0\x00', 0x0, 0x0) [ 929.365701][T18964] batman_adv: Cannot find parent device [ 929.418540][T18964] batman_adv: batadv0: Adding interface: gretap849 02:22:16 executing program 1: 02:22:16 executing program 5: [ 929.457271][T18964] batman_adv: batadv0: The MTU of interface gretap849 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. [ 929.561280][T18964] batman_adv: batadv0: Not using interface gretap849 (retrying later): interface not active 02:22:16 executing program 1: 02:22:16 executing program 5: 02:22:16 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ace4, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:16 executing program 1: 02:22:16 executing program 5: 02:22:16 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x80000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8000, 0x4, @perf_config_ext={0x0, 0xfffffffffffffffd}, 0x0, 0x7, 0x0, 0x0, 0xfffffffffffffffe}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) r1 = socket$inet6(0xa, 0x5, 0x0) close(r1) r2 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r1, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r1, r2, 0x0, 0x80001d00c0d0) fcntl$dupfd(r2, 0x406, r0) 02:22:16 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="009effffff0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:16 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffff7f}}}}, 0x100c) 02:22:16 executing program 1: r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f00000000c0)=0x2000000000000074, 0x4) bind$inet(r0, &(0x7f0000000440)={0x2, 0x4e23, @broadcast}, 0x10) sendto$inet(r0, 0x0, 0x0, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23, @local}, 0x10) setsockopt$sock_int(0xffffffffffffffff, 0x1, 0x0, 0x0, 0x0) sendto$inet(r0, &(0x7f00000012c0)="0c268a927f1f6588b967481241ba7860005cf65ac618ded8974895abeaf4b4834ff922b3f1e0b02bd67aa03059bcecc7a95425a3a07e758044ab4ea6f7ae55d88fecf90b1a7511bf746bec66ba", 0xfe6a, 0x11, 0x0, 0x27) [ 929.944755][T19004] batman_adv: Cannot find parent device [ 929.979140][T19004] batman_adv: batadv0: Adding interface: gretap850 02:22:16 executing program 5: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(r0, 0x6, 0xe, &(0x7f00000003c0)={@in6={{0xa, 0x0, 0x0, @loopback}}, 0x0, 0x7, 0xb}, 0xd8) bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22}, 0x1c) sendto$inet6(r0, 0x0, 0x0, 0x200408d4, &(0x7f0000000380)={0xa, 0x4e22, 0x0, @loopback}, 0x1c) write(r0, &(0x7f00000004c0)="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", 0x1000) [ 930.011553][T19004] batman_adv: batadv0: The MTU of interface gretap850 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:17 executing program 1: r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f00000000c0)=0x2000000000000074, 0x4) bind$inet(r0, &(0x7f0000000440)={0x2, 0x4e23, @broadcast}, 0x10) sendto$inet(r0, 0x0, 0x0, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23, @local}, 0x10) setsockopt$inet_tcp_TCP_CONGESTION(0xffffffffffffffff, 0x6, 0xd, 0x0, 0x0) sendto$inet(r0, &(0x7f00000012c0)="0c268a927f1f6588b967481241ba7860005cf65ac618ded8974895abeaf4b4834ff922b3f1e0b02bd67aa03059bcecc7a95425a3a07e758044ab4ea6f7ae55d88fecf90b1a7511bf746bec66ba", 0xfe6a, 0x11, 0x0, 0x27) ioctl$sock_inet_tcp_SIOCINQ(r0, 0x541b, &(0x7f0000000040)) [ 930.155371][T19004] batman_adv: batadv0: Not using interface gretap850 (retrying later): interface not active 02:22:17 executing program 5: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000200)={0x5, 0x800000008, 0x7fff, 0x8000000001}, 0x3c) close(r0) 02:22:17 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ace5, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:17 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00c3ffffff0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:17 executing program 1: sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB="28000000300001030000000066f3069a08f9e3ab1400010010000100040001"], 0x28}}, 0x0) r0 = socket(0x10, 0x80002, 0x0) sendmmsg$alg(r0, &(0x7f0000000180), 0x572, 0x0) [ 930.388712][ T27] audit: type=1800 audit(1589682137.200:191): pid=19024 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=15763 res=0 02:22:17 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x11, 0x800000003, 0x0) bind(r1, &(0x7f0000000080)=@generic={0x11, "0000010000000000080044944eeba71a4976e252922cb18f6e2e2aba000000012e0b3836005404b0e0301a4ce875f2e3ff5f163ee340b7679500800000000000000101013c5811039e15775027ecce66fd792bbf0e5bf5ff1b0816f3f6db1c00010000000000000049740000000000000006ad8e5ecc326d3a09ffc2c654"}, 0x80) getsockname$packet(r1, &(0x7f00000003c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @dev}, &(0x7f0000000340)=0x14) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000440)=ANY=[@ANYBLOB="ec0100002800270d00"/20, @ANYRES32=r2, @ANYBLOB="0480000000800000f2ff000008000e"], 0x1ec}}, 0x0) [ 930.498047][T19043] batman_adv: Cannot find parent device [ 930.515056][T19043] batman_adv: batadv0: Adding interface: gretap851 02:22:17 executing program 3: r0 = syz_open_dev$sg(&(0x7f00000003c0)='/dev/sg#\x00', 0x0, 0x0) r1 = gettid() sendmsg$DEVLINK_CMD_RELOAD(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f00000001c0), 0xc, &(0x7f0000000380)={&(0x7f0000000200)={0x84, 0x0, 0x300, 0x70bd2b, 0x25dfdbfd, {}, [{@pci={{0x8, 0x1, 'pci\x00'}, {0x11, 0x2, '0000:00:10.0\x00'}}, @DEVLINK_ATTR_NETNS_PID={0x8}}, {@pci={{0x8, 0x1, 'pci\x00'}, {0x11, 0x2, '0000:00:10.0\x00'}}, @DEVLINK_ATTR_NETNS_PID={0x8}}, {@nsim={{0xe, 0x1, 'netdevsim\x00'}, {0xf, 0x2, {'netdevsim', 0x0}}}, @DEVLINK_ATTR_NETNS_PID={0x8, 0x8b, r1}}]}, 0x84}, 0x1, 0x0, 0x0, 0x8010}, 0x20048001) ioctl$BLKTRACESETUP(r0, 0xc0481273, &(0x7f0000000040)={[], 0x0, 0x73e, 0xf6, 0x0, 0x0, r1}) perf_event_open(&(0x7f00000002c0)={0x0, 0x70, 0x0, 0x1c, 0x0, 0x0, 0x0, 0x7f, 0x20012, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000000), 0xa}, 0x0, 0x0, 0x0, 0x9}, r1, 0x0, 0xffffffffffffffff, 0x0) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) getsockopt$inet6_int(r3, 0x29, 0x4a, 0x0, &(0x7f0000000040)) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000180)=@newlink={0xffffffffffffff33, 0x10, 0x400, 0x8000, 0x0, {0x0, 0x0, 0x0, 0x0, 0x40185}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xffffffffffffff89, 0x2, 0x0, 0x1, [@IFLA_GRE_ENCAP_TYPE={0x0, 0xe, 0x1}, @IFLA_GRE_IFLAGS]}}}]}, 0x3c}}, 0x1) [ 930.522735][T19043] batman_adv: batadv0: The MTU of interface gretap851 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. [ 930.612366][T19043] batman_adv: batadv0: Not using interface gretap851 (retrying later): interface not active [ 930.626599][T19056] netlink: 448 bytes leftover after parsing attributes in process `syz-executor.5'. 02:22:17 executing program 1: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x11, 0x800000003, 0x0) bind(r1, &(0x7f0000000080)=@generic={0x11, "0000010000000000080044944eeba71a4976e252922cb18f6e2e2aba000000012e0b3836005404b0e0301a4ce875f2e3ff5f163ee340b7679500800000000000000101013c5811039e15775027ecce66fd792bbf0e5bf5ff1b0816f3f6db1c00010000000000000049740000000000000006ad8e5ecc326d3a09ffc2c654"}, 0x80) getsockname$packet(r1, &(0x7f00000003c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @dev}, &(0x7f0000000340)=0x14) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000440)=ANY=[@ANYBLOB="ec0100002a00270d00"/20, @ANYRES32=r2, @ANYBLOB="048000000080"], 0x1ec}}, 0x0) 02:22:17 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ace6, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 930.685610][T19063] debugfs: File 'dropped' in directory 'sg0' already present! [ 930.694897][T19063] debugfs: File 'msg' in directory 'sg0' already present! [ 930.704221][T19063] debugfs: File 'trace0' in directory 'sg0' already present! [ 930.723166][T19063] debugfs: File 'dropped' in directory 'sg0' already present! [ 930.732519][T19063] debugfs: File 'msg' in directory 'sg0' already present! [ 930.741285][T19063] debugfs: File 'trace0' in directory 'sg0' already present! [ 930.835926][T19064] netlink: 448 bytes leftover after parsing attributes in process `syz-executor.5'. [ 930.872998][T19070] batman_adv: Cannot find parent device [ 930.916670][T19070] batman_adv: batadv0: Adding interface: gretap852 [ 930.939282][T19070] batman_adv: batadv0: The MTU of interface gretap852 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. [ 930.980082][T19070] batman_adv: batadv0: Not using interface gretap852 (retrying later): interface not active 02:22:17 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00f0ffffff0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:17 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=ANY=[@ANYBLOB="3c0000001000"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB], 0x3c}}, 0x0) 02:22:17 executing program 5: syz_emit_ethernet(0x82, &(0x7f0000000180)={@local, @remote, @void, {@ipv4={0x800, @icmp={{0x5, 0x4, 0x0, 0x0, 0x74, 0x0, 0x0, 0x0, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @local}, @dest_unreach={0x3, 0x4, 0x0, 0x0, 0x0, 0x0, {0x16, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, @private, @dev={0xac, 0x14, 0x14, 0x13}, {[@timestamp_prespec={0x44, 0x3c, 0x0, 0x3, 0x0, [{}, {@empty}, {@loopback}, {@local}, {@dev}, {@multicast2}, {@loopback}]}, @cipso={0x86, 0x6}]}}}}}}}, 0x0) 02:22:17 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffd}}}}, 0x100c) 02:22:17 executing program 1: syz_emit_ethernet(0x82, &(0x7f00000000c0)={@local, @empty, @val={@void}, {@ipv4={0x800, @gre={{0xb, 0x4, 0x0, 0x0, 0x70, 0x0, 0x0, 0x0, 0x2f, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @initdev={0xac, 0x1e, 0x0, 0x0}, {[@timestamp_addr={0x44, 0x8, 0x5, 0x3, 0x0, [{@multicast1}, {@remote}]}, @timestamp={0x7, 0x4}]}}, {{0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x6558}}}}}}, 0x0) 02:22:17 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ace7, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:17 executing program 3: perf_event_open(&(0x7f00000002c0)={0x4, 0x70, 0x0, 0x0, 0x0, 0x2, 0x0, 0x7f, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10000000, 0x0, @perf_bp={&(0x7f0000000000), 0x6}}, 0x0, 0xfffffffffffffffe, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) ioctl$SIOCX25SCUDMATCHLEN(r1, 0x89e7, &(0x7f0000000040)={0x68}) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000180)=ANY=[@ANYBLOB="3c00000010000000000000000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB="64aaf0c75978ac5911712534deb0d258e44377b714ee336d1358b306b3192515219ad98364a48e71ae82d4ce4815fece3700fa253c88d6e04996fc1988b03bae56df45c171572120089100b59e704011fe7bd5966b940e129b5f1faae9ab8bb42b1d4c4ccd026e66e6f60290d594733a970d651cef395d9af14c19b62c85df5152d6088fc7a410"], 0x3c}}, 0x0) 02:22:18 executing program 5: syz_emit_ethernet(0x82, &(0x7f0000000180)={@local, @remote, @void, {@ipv4={0x800, @icmp={{0x5, 0x4, 0x0, 0x0, 0x74, 0x0, 0x0, 0x0, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @local}, @dest_unreach={0x3, 0x4, 0x0, 0x0, 0x0, 0x0, {0x16, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, @private, @dev={0xac, 0x14, 0x14, 0x13}, {[@timestamp_prespec={0x44, 0x3c, 0x0, 0x3, 0x0, [{}, {@empty}, {@loopback}, {@local}, {@dev}, {@multicast2}, {@loopback}]}, @cipso={0x86, 0x6}]}}}}}}}, 0x0) 02:22:18 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00fcffffff0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:18 executing program 1: r0 = socket$inet6_udplite(0xa, 0x2, 0x88) sendmmsg$inet6(r0, &(0x7f0000004740)=[{{&(0x7f00000000c0)={0xa, 0x4e20, 0x0, @mcast1={0xff, 0x4}, 0x3}, 0x1c, 0x0}}], 0x1, 0x0) [ 931.251121][T19101] batman_adv: Cannot find parent device [ 931.308737][T19101] batman_adv: batadv0: Adding interface: gretap853 02:22:18 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000040)={0x1fe, 0x1, 0x0, 0x2000, &(0x7f0000ffd000/0x2000)=nil}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) [ 931.346681][T19101] batman_adv: batadv0: The MTU of interface gretap853 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. 02:22:18 executing program 1: r0 = socket$inet6(0x10, 0x2, 0x0) sendmsg(r0, &(0x7f0000000100)={0x0, 0xfffffffffffffe3b, &(0x7f0000000000)=[{&(0x7f0000000180)="5500000018007f5f14fe01b2a4a290930206040200001301020b141239000900350026030100000019000b40060c1101020022dc1338d54404139b84136ef75afb83de4411000500", 0x48}, {&(0x7f0000000040)="73005000d612110000ffffa888", 0xd}], 0x2}, 0x0) 02:22:18 executing program 5: r0 = socket$inet6(0xa, 0x3, 0x3c) connect$inet6(r0, &(0x7f0000000300)={0xa, 0x0, 0x0, @remote, 0x6}, 0x1c) sendmsg(r0, &(0x7f0000000000)={0x0, 0x0, 0x0}, 0xc100) writev(r0, &(0x7f0000000400)=[{&(0x7f0000000480)="a9", 0x1}], 0x1) [ 931.421641][T19101] batman_adv: batadv0: Not using interface gretap853 (retrying later): interface not active 02:22:18 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet(0x2, 0x3, 0x7) setsockopt$inet_msfilter(r1, 0x0, 0x8, &(0x7f0000000100)=ANY=[@ANYBLOB="f9"], 0x1) getsockopt$inet_pktinfo(r1, 0x0, 0x8, &(0x7f0000000080)={0x0, @local, @local}, &(0x7f0000000000)=0x69) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000440)=@newtfilter={0x4c, 0x2c, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r2, {0x2}, {}, {0x10}}, [@filter_kind_options=@f_u32={{0x8, 0x1, 'u32\x00'}, {0x3, 0x2, [@TCA_U32_SEL={0x14}, @TCA_U32_CLASSID={0x8}]}}]}, 0x4c}}, 0x0) [ 931.625387][T19133] netlink: 32 bytes leftover after parsing attributes in process `syz-executor.5'. [ 931.636782][T19136] netlink: 32 bytes leftover after parsing attributes in process `syz-executor.5'. 02:22:18 executing program 1: ioctl$sock_inet_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0) socket$inet_icmp_raw(0x2, 0x3, 0x1) r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f00000000c0)=0x2000000000000074, 0x4) bind$inet(r0, &(0x7f0000000440)={0x2, 0x4e23, @broadcast}, 0x10) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000000480)={0x1, &(0x7f0000000400)=[{0x6, 0x0, 0x0, 0xe8}]}, 0x10) sendto$inet(r0, 0x0, 0x0, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23, @local}, 0x10) writev(r0, &(0x7f0000001c80)=[{&(0x7f0000001d80)="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", 0x1b1}, {&(0x7f0000001780)="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", 0x217}, {0x0}, {}, {0x0}, {&(0x7f0000001600)}, {&(0x7f0000000180)}, {0x0}, {0x0}], 0x9) socket(0x11, 0x0, 0x0) setsockopt$netlink_NETLINK_ADD_MEMBERSHIP(0xffffffffffffffff, 0x10e, 0x1, 0x0, 0x0) setsockopt$sock_int(r0, 0x1, 0x7, &(0x7f0000000600)=0x3, 0x4) sendto$inet(r0, &(0x7f00000012c0)="0c268a927f1f6588b967481241ba7860005cf65ac618ded8974895abeaf4b4834ff922b3f1e0b02bd67aa03059bcecc7a95425a3a07e758044ab4ea6f7ae55d88fecf90b1a7511bf746bec66ba", 0xfe6a, 0x11, 0x0, 0x27) 02:22:18 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffe}}}}, 0x100c) 02:22:18 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ace8, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:18 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x24, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_IFALIASn={0x4}]}, 0x24}}, 0x0) 02:22:18 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00feffffff0000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:18 executing program 5: r0 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @mcast1, 0x2}, 0x1c) connect$inet6(r0, &(0x7f0000003a40)={0xa, 0x0, 0x0, @ipv4={[], [], @empty}}, 0x1c) 02:22:18 executing program 1: syz_emit_ethernet(0x82, &(0x7f0000000180)={@local, @remote, @void, {@ipv4={0x800, @icmp={{0x5, 0x4, 0x0, 0x0, 0x74, 0x0, 0x0, 0x0, 0x1, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}, @local}, @dest_unreach={0x3, 0x4, 0x0, 0x0, 0x0, 0x0, {0x16, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, @private=0x7, @dev, {[@timestamp_prespec={0x44, 0x3c, 0x0, 0x3, 0x0, [{}, {@empty}, {@loopback}, {@local}, {@dev}, {@multicast2}, {@loopback}]}, @cipso={0x86, 0x6}]}}}}}}}, 0x0) [ 931.876539][T19143] batman_adv: Cannot find parent device [ 931.911355][T19143] batman_adv: batadv0: Adding interface: gretap854 02:22:18 executing program 1: pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) write$binfmt_misc(r0, &(0x7f0000000000)=ANY=[], 0xfffffecc) r1 = accept$packet(r0, 0x0, &(0x7f0000000240)) setsockopt$packet_rx_ring(r1, 0x107, 0x5, &(0x7f0000000200)=@req={0x3, 0x1000, 0x4, 0x7f}, 0x10) r2 = socket$inet(0x2, 0x3, 0x4) connect$inet(r2, &(0x7f0000000000)={0x2, 0x0, @dev}, 0xfffffffffffffe68) sendto$inet(r2, 0x0, 0x0, 0x4068080, 0x0, 0x0) accept4$inet(r2, 0x0, &(0x7f00000000c0), 0x0) r3 = socket$inet6(0x10, 0x3, 0x0) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) setsockopt(r4, 0xff, 0x1, &(0x7f0000000000)="173aacaffb", 0x5) getsockname$inet(r4, &(0x7f0000000100)={0x2, 0x0, @initdev}, &(0x7f0000000140)=0x10) bpf$MAP_CREATE(0x0, &(0x7f0000000080)={0x1000000000000016, 0x0, 0x40001, 0x1}, 0x2e) sendto$inet6(r3, &(0x7f00000001c0)="1c0000001200050f0c1000000049b23e9b200a00080001c000000001", 0x1c, 0x0, 0x0, 0x0) recvfrom$inet6(r3, &(0x7f0000000080)=""/48, 0x30, 0x20, &(0x7f00000000c0)={0xa, 0x4e25, 0x5, @empty, 0x8}, 0x1c) recvfrom$inet6(r3, &(0x7f0000000000)=""/114, 0xfffffffffffffd1b, 0x0, 0x0, 0x0) sendto$inet6(0xffffffffffffffff, &(0x7f0000000000)="9000000020001f", 0x7, 0x0, 0x0, 0x0) sendto$inet6(0xffffffffffffffff, &(0x7f0000000000)="58ad000011", 0x5, 0x0, 0x0, 0x0) r5 = socket$inet6(0x10, 0x3, 0x0) sendto$inet6(r5, &(0x7f0000000000)='s', 0x10a73, 0x800, 0x0, 0x4b6ae4f95a5de35b) [ 931.944734][T19143] batman_adv: batadv0: The MTU of interface gretap854 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:18 executing program 5: r0 = socket$inet6(0x10, 0x3, 0x0) sendto$inet6(r0, &(0x7f0000000140)="1c0000001200050f0c1002000049b23e9b200a00080001c000000001", 0x1c, 0x0, 0x0, 0x0) recvfrom$inet6(r0, 0x0, 0x0, 0x0, 0x0, 0xff55) recvfrom$inet6(r0, &(0x7f0000000000)=""/114, 0x314aaee635b9c1b6, 0x0, 0x0, 0x0) bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="36ff00080000890097e7d0b9e995ffa80000000000"], 0x0, 0x15}, 0x20) setsockopt$inet6_opts(0xffffffffffffffff, 0x29, 0x0, &(0x7f0000000080)=@fragment, 0x8) sendto$inet6(0xffffffffffffffff, &(0x7f0000000000)="ffad000010", 0x5, 0x0, 0x0, 0x0) r1 = socket$inet6(0x10, 0x3, 0x0) sendto$inet6(r1, &(0x7f0000000000)='0', 0x10a73, 0x10, 0x0, 0x4b6ae4f95a5de3b2) [ 932.054774][T19143] batman_adv: batadv0: Not using interface gretap854 (retrying later): interface not active 02:22:18 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) getsockopt$ARPT_SO_GET_REVISION_TARGET(0xffffffffffffffff, 0x0, 0x63, &(0x7f00000000c0)={'icmp\x00'}, &(0x7f0000000100)=0x1e) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) r2 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r2, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) r3 = bpf$BPF_LINK_CREATE(0x1c, &(0x7f0000000180)={r1, r2, 0x14}, 0x10) r4 = syz_open_dev$hidraw(&(0x7f0000000200)='/dev/hidraw#\x00', 0x3, 0x301100) splice(r3, &(0x7f00000001c0)=0xfffffffffffffff7, r4, &(0x7f0000000240)=0x6, 0x9, 0x2) ioctl$KVM_X86_SETUP_MCE(r1, 0x4008ae9c, &(0x7f0000000040)={0x2, 0x5, 0x7f}) [ 932.244566][T19178] netlink: 41451 bytes leftover after parsing attributes in process `syz-executor.1'. [ 932.275010][T19186] netlink: 44304 bytes leftover after parsing attributes in process `syz-executor.5'. 02:22:19 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000000068001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:19 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ace9, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:19 executing program 3: syz_mount_image$bfs(&(0x7f0000000040)='bfs\x00', &(0x7f00000000c0)='./file0\x00', 0x80000001, 0x4, &(0x7f0000000200)=[{&(0x7f0000000340)="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", 0x1000, 0x2}, {&(0x7f0000000180)="7d184121523c14811b1df4f567635333fd5f799e3c7263f7c1fc5af849e04d45407b48936a67a129ab783b3e4998ec495c3d88f09eb5fc3c7a6c2525103d42d09d845112a95a5b2d1a4276", 0x4b, 0x1}, {&(0x7f0000001340)="e17d14bd214218cfd003d8efd0b7f6e746d3107b77b1a4ac255c8b087004d169e88795d8b89ec31641d6080273c1137eb05f05085928ff2399f8e96e20c72047a104dd3bac7db148c84c22d25b709660a9db4831c3332a920c2e16ff890c25b77daa07f08cec0a460ffe6b4d708c8f18cd13c67b69151fdd31b268169881f4793d13ce084abaa2bf4ca34ffb23fe0e1aa3713f49394996eba8d991f34b5eaa9e483d404b6be2c9cd424b1f1b64dc750bbc097291bc1f05c597fb56effa833aacc1d508b30bbb11741293908fc1314a", 0xcf, 0x7}, {&(0x7f0000000100)="d22945e01f99dd64e5ecb0a811368c01812b02664bf00fa731a2dacf0b5722ef70ce9eeadebb1e38558650436a848c68f90850", 0x33, 0x6}], 0x400000, 0x0) perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x5, 0x0) close(r0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r1, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r0, r1, 0x0, 0x80001d00c0d0) r2 = fcntl$getown(r1, 0x9) perf_event_open(&(0x7f0000001440)={0x0, 0x70, 0x40, 0xec, 0x61, 0x79, 0x0, 0x3c57ee3e, 0x88, 0x4, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x3, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x1, 0x4, @perf_config_ext={0x9, 0xf2c}, 0x100, 0x726d1388, 0xd0, 0x4, 0x2, 0x4, 0x1}, r2, 0x1, 0xffffffffffffffff, 0x0) r3 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000001580)=ANY=[@ANYBLOB="3c0000742e5e50366756183276038cc80010000104000000000000000000000000ec984fbb122503897d584d317570b2901fe4dd14bd46c5ec3559046ad5d76039e1f30fbecc0801901d8fb6", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB="51f12bdf3549ab0ad7f017e3cf6d15dfbade6e8a409b6197edb50c2d60019d12ea3a9a024ca96179d6e652c18fb839138fe6c676839ecf039cd789ac735dab466917a266d4f845048056ca338971bd11ff2115f4cb0297be90a39efa28cb2992c068c38775d80e55ba58ca6afc6f726fa335852cf1462bfa4e48e0f6d10533e16b75be979ca59c78aacf93892d"], 0x3c}}, 0x0) 02:22:19 executing program 5: r0 = bpf$PROG_LOAD(0x5, &(0x7f0000caefb8)={0x8, 0x3, &(0x7f0000000080)=@framed={{0xffffff85, 0x0, 0x0, 0x0, 0x61, 0x54}}, &(0x7f0000281ffc)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x60}, 0x48) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000000c0)={r0, 0x0, 0xe80, 0x0, &(0x7f00000001c0)="5cdd30c37f3e0a6633c9f7b986dd", 0x0, 0xf0ffff, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x40) 02:22:19 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp={0xd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffff}}}}, 0x100c) [ 932.459311][T19199] batman_adv: Cannot find parent device [ 932.473867][T19201] BFS-fs: bfs_fill_super(): No BFS filesystem on loop3 (magic=41187d00) [ 932.526021][T19199] batman_adv: batadv0: Adding interface: gretap855 [ 932.565441][T19199] batman_adv: batadv0: The MTU of interface gretap855 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 932.687108][T19199] batman_adv: batadv0: Not using interface gretap855 (retrying later): interface not active [ 932.721532][T19208] netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. 02:22:19 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0000000000000002c0001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 932.802977][T19201] BFS-fs: bfs_fill_super(): No BFS filesystem on loop3 (magic=41187d00) 02:22:19 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acea, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 932.888411][ T27] audit: type=1800 audit(1589682139.700:192): pid=19227 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=15895 res=0 02:22:19 executing program 1: mkdir(&(0x7f00000001c0)='./file0\x00', 0x0) mkdir(&(0x7f00000009c0)='./file1\x00', 0x0) setxattr$system_posix_acl(&(0x7f0000000580)='./file1\x00', &(0x7f00000005c0)='system.posix_acl_default\x00', &(0x7f0000000c40)={{}, {0x1, 0x4}, [{}], {}, [{}, {0x8, 0x1}, {0x8, 0x1}, {}]}, 0x4c, 0x0) mount$overlay(0x40000a, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0)='overlay\x00', 0x0, &(0x7f0000000100)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './file1'}, 0x5c}], [], 0xf603000000000000}) 02:22:19 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$mice(0xffffffffffffff9c, &(0x7f0000000040)='/dev/input/mice\x00', 0x80800) ioctl$DRM_IOCTL_MODE_OBJ_SETPROPERTY(r1, 0xc01864ba, &(0x7f00000000c0)={0x8000, 0x8001, 0x2c41, 0xfbfbfbfb}) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) [ 933.152079][T19239] overlayfs: conflicting lowerdir path [ 933.165946][T19232] batman_adv: Cannot find parent device [ 933.201477][T19232] batman_adv: batadv0: Adding interface: gretap856 02:22:20 executing program 1: mkdir(&(0x7f00000001c0)='./file0\x00', 0x0) mkdir(&(0x7f00000009c0)='./file1\x00', 0x0) setxattr$system_posix_acl(&(0x7f0000000580)='./file1\x00', &(0x7f00000005c0)='system.posix_acl_default\x00', &(0x7f0000000c40)={{}, {0x1, 0x4}, [{}], {}, [{}, {0x8, 0x1}, {0x8, 0x1}, {}]}, 0x4c, 0x0) mount$overlay(0x40000a, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0)='overlay\x00', 0x0, &(0x7f0000000100)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './file1'}, 0x5c}], [], 0xf603000000000000}) [ 933.230277][T19232] batman_adv: batadv0: The MTU of interface gretap856 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. [ 933.332210][T19232] batman_adv: batadv0: Not using interface gretap856 (retrying later): interface not active [ 933.365970][T19250] overlayfs: conflicting lowerdir path 02:22:20 executing program 5: r0 = syz_open_dev$tty1(0xc, 0x4, 0x1) write$binfmt_elf64(r0, &(0x7f00000000c0)={{0x1b, 0x29, 0x7, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40}}, 0x40) [ 933.374748][T19238] netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. 02:22:20 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0xa) 02:22:20 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="000000000000000ec0001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:20 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1aceb, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:20 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r0, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) mmap(&(0x7f0000ffa000/0x3000)=nil, 0x3000, 0x2000008, 0x100010, r0, 0x38cec000) r1 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000180)=ANY=[@ANYBLOB="3c000000100001040900000000000000000000009c82c942085d075199ac494592080e039c2d16b4b140cd2b0972ccc8728c4c5ec14292238295c7102fc5c78248b5e75170b5f726d11d1172ecbfa9d364e9e17686fa9f93c2e74b0146f740895adfc48d23d2a444293df2729c65c4d307d4e0d564a6caf888d090a340c380e9095bf4b2369a89b645fbd111ed19f2b96ac19db0aea1aca4c2292c133fd684fdece217f75fe51894e0d6b95a62cc035e1b53b8daa9a8bec2a6a2ad0d484746cd9835a628c61489861aa3788458dd4ea48240877ce15f7fb52bd9", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010062726964676500000c0002800800010005000000"], 0x3c}}, 0x0) 02:22:20 executing program 1: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$sequencer(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer\x00', 0x101042, 0x0) write$UHID_INPUT(r2, &(0x7f00000010c0)={0x8, {"e43313f14a5e716a5fd050718108bf3e760781d82e8b2b398263105b343e2b45c219a920170974ed0cfe15ae81d85fe5b6f6f37ecae315df4bea954c83806bb7b40f09f75d21f08c60e7371bfb444d1206cdaa31390689546e18fe96a4a8908bb45a250fec1edc7adfa4caebfbcd06803016a9a796d35c83a2a40a5e379242f4cbbff5c5000d9dad5e3490dede3e176ce6ec94556932bd7054a73b4300fb0e8a507bc4910248a5edf4d2ddbae291d56f9e20b96afd2ad6f30454418818e67efd5a343e2fbbe616930007f781aa32f048eb2d71b1fc6cd4a217e01ff291c1c2cf061af1064d9183c20cc86c53aa1696ad0a35ca64f38eaa6165505e3e91cd9b3bef0a2b3b6f97be29eacdf23e4e609828c9a284ae84096d74e3c3517a20e3ef49dea3f11743895b2872f4a39fa97ba37b8517f60cd828645dd229cb7ed8b9cd4725626526381be921757f8be9927ac6cabf8e9c701ddd1a15dd30fab753341a4b92566402c6ac73f3f801eb39d96b4bd74a4b31b57034aee748357a20e95b3d9fbc40a0bc5ea4cc9e4a570791bfd78011fd6ce31e87ac5fe78985411ad50abad880e1e27ab1965566abeaef798d2a69b0c37a41a020d2944c5e8e565017ceeb9f5c35c5f27dfe91ac573ca76c8c64f809d37b7f776726d0811b498bccb0a46c7cd781ee4ada33b3c6eee6a14df888665ce614beb1a57c6382e110d7cbd94cf6c1ed5c4a75f26c4322a0e693ed4cb154533cd9d3cd601f3a2b2464b7f4847485dcc4d8eff657895c269b5334d4737d485270b199eaf8c198b9750a1fbc58eea3af5996e1dbb5df2adfe0c8780406a8937d33f1ec312a8fdf0ef2209d598be5b2d2e6de6054cdf667c03704d8b9b612aa0c51e3df38e44860df374993939d3e28f8ebcc701deba7d6ed3fdf1083525a60feeee1c80d71e5a3ff1acbf972ed572f7354dc940e4798e0781e5a26e11a0510fe65ac06e49067452c9beed8147d7538fde6eb2b6f42003f24291041867817326d6c9a01a668080b5d56a53d3c6707dee136e361dcd17ebc314ad5423e1669ab334f412d5350b9f278933652d32001ca41c80422eac6419dd28ed9ea417cd525c2a833c7e85444d055779310831751d669f0f04827f4a5f8e187194c2c2db5443b210401eb53703235bbb45b28ad0db9ad45ff5cfa50496433cf3d92feecb72d357cf4d2d1e6e11a99769ef163d2f9e7e1decc19b6d4ae3d63176094811cdc5fd3b5d5273ff8be0dab49922d4aad5ab15487f55f654fda5438079ba666bd69bc01b2b814968050ce0e0829018503de43f379b5ac889c0d56c1dc35e1d7a3e80e83a76e272665ac9ba625924d1fe2063fea6ab083502fc11db6604ad5204af7952259248be8afe2bc9ec8f5ae8cdd7fa9f245ecabfe134c27930ab68dc7c2a922b4ecf1bce2beb4f86ec79f3bed2905e3385db8f2f1ce915a124b2783b0627651e210b4a47e1f8beaee120686417d2441b126a13d9b63d4bb377b47142bcda21e860d5c6d0400e2efd2153bdf3a13cf023dc38861e7001221d8b21e363d3885d837f93cc149579abe569f126033e57fa47ae6d0480eaabaae7ab9b1c915c889ed6c5564a9de8ec3a594ed74872fd451b0d350de1cd006daceab70c43504def6ac220520df5827e794c9432758ff54611815979494ca75aa2faed7812d072e965b77e465e7d6177b1b49e17a8e6cbc55baf46108c3f41dcd6cd2aafe4b04328c1290cd49e868998fa054fff4de735f72f080eeca41768f85cffc7ed87900e63e7d98d40ef91ce4b74b415e04297b1ef21c769080ff047b9e2d17c8ee8156f2390448e4649d825914bdf501233c00269a7438ce3c24e67e5faf5d2b12a5fe58b091ad4b2748a5a36f3212ddb9847b33ab84556a6f393f9e65143aa8577af6a4be02517ff1dbb1a1f28bb50e04f2573e03c6a13b1c26878bf56d4c2f8953dd080a424daeaeb99c527a0f250dc934e1679ef2dd5c9e8b9e8486a52dad39a1b4e5198cd2d851ca704138108960ccece3113ba3f222621a30a18b1b6307d52544b6829695096a657aab9043a64dc9e4000116773a44fe1bbb8455de33a976fbab491b286fca8947bbb32a78b665d749f95ee4e199862daf3842eec8a8f0a65a9bdd1b73a2390360c1c65d94d8257f5e7cdf2a31f74d8096952a3b7827773fdbcc632d75c4e5b8a765b0164553a9160d645c32236ef968b4cc4376ca1e40d64486f8bbbcce5c5924d3c83bfe7853d99f837d02a3d69af7265bf2ca023cc86b814725555f70462652f7f397d4dbdae444a3fc87f7600a71e3aa43fc04d6dd92b555ce8fe5d756df9a4612bf103e6bb6cbd10149bc68eeeb491d710eb18a6d22f401838524003acabe35817459ba698d74b584e757505a3939ca836210c3a896092568ea729d2ee3ac72ca5fe1bb7568080ac45afc7d6642790f35590afc5816deac89ee82cc9eeddcaa7e29e9cba831a6cffcf9ef794ee65a4d9682d5e87a9adc27ef0a06e7b96585d620d6b80bcf48a5affdf5310b36cecdd66bf50c6b5953878d123ba2155c3556ad11468459a205ac98221e22d7cca8adc4321de9ef51f41b3ff06fc2f1b8e1d04e5ce4cbc9131e4aa3f8e83cab989ecfb35998387c51cdda86c1fb9a77e494130b123d0c6140f1e6a03941cbf0f1462bcd9620ae9dc95b3b37dd00d0dbc4a7f33cbe01f106fa1992dbf042c8b3137ac619a6c21d3c5111b4248292f708903691ec8ca3208f44f29e28ad08db8f7073095c9a95ae0211e38319738639d64136eadbbd0e181fc79bee47282f8caeb9546b376737ab1144c945111506a8aa2b1feecb89447f18c58cf7464b7cccdf6a2a8c6031245797054ae68be889ccc7ca19579b86a60c35b5677eee6293fc2949d49627623b3ac0e1f58c5b31948b3b769c497966af9c59343d5388a38975e61378f0da03ef7a2ed09db1f5b34a8dec61136460eeaad34ec79aee7923d208491e681a133c248cbb6f6eba27bf6c8b76aff95f9511ed705dfcb049b9b0f2f2e8f77a293e468a6583a11cbd4acdaf05b0a899abdbe4db7357b3d7bf9869016ec944797437b3892032dd3ea08a97ad11250c374d8f55a43b7116f0953226256891ffb79183b78fe0e8fac539c37d0d7921b6c26afcf36f7188e755877fa16be7444825e12ed7c2e4f5b17df0bcd70e06e28e549b7df7777617c7109b465ad16f9696743c60da3bcfed3bba8e7bcc6f7d07a9295f0dd48bdec0257aff6a733fd9260004e4dafe9769b5ccbe8ce6d8d5302b0df546608644f6b028e9ff51b62d11f18defab7ed271acf47013eadd77265613d4f0236f04ecbb235f776cadefa3c4dcd3bb60fae3c4924ee9a3c2dd842ab9c1aea43e3aeaf4305c03151db71df178c1447ccfcb8b1d58c9b1833d5cf453084f1d4d283b85cbe407884db4df68f086d159555eddf8cdcbc54ccf17b0072cf227ab15c7d01b7f53335027e29973d458a9c3dceba7278d208c3ef076572dc09c4d2513c2a4c0c3f020dae165720449fd6a67e18f011da10c3be3228c64807146abec3c619f2fc9c8de0f4459e1ff9fc11a5c546d414014b4c7297c341ddb52da00cd2761c903facb14dfd9e23c84a7ffed7ab385faa3838eefa3a99373f1ac161b5debdfa1e816b63150ba06b5156484ea80782dad9832553b796efb14575ed83d117cba35c3528a72816859355a4405c13e615154935c84c16d45025537bb6a8ff62a56e7a1effa48b6679125718153029545cba07624b4115190704e4ba82cee5d8df6357b27768d07040ce1e66a3a1cc80e282b2a00f9b5a43943682af6dce7e4beb64c87cc1c92603a483a820f75118fc62804f5a83ac2a10a4ea205fe4a08a22372fc9498eb1c3c87aa274a20a893c74f52092e2646923d982b33210afaa60312bc74dc91f9c013a3bbf565ef3b8b256073152950fba51dafcff08e10c4ce51aae3c3e57b85cab8beae5a4341e4dab75eab1858e3e3c5d9189d6049fdc8b5afe5b07969150b75452a2834ded8f05e403e19b763cd0b68af4177ddc31c47123e1bf624250f491d4b15b455e6c7f56fb14edc9571933fc52d10e426a5d74bafea9e6f26e0721caa3b6db0759511e26a93da05547e0ba5c706424e6afaa2ac61f8dca551e46dd4ddfb51e1277c5d9abadd090bc9a6271ce6a0f1e284083c7d0f0ceb7d2d18e623592c11e7330befd3b0a345b89a111a1b06362218cd653bd124b5ce0012f925053ed7bfc26b937ec08e8571effe19ed79e49f7b5270c5e1f08ad7d4122dcfe0f2789323a8db54fc61f0b541a757468f2a53c2225816e7a0ed308f947c834ccc004842c5e7b988ab3d510a500608c3bb2f15dc1bdf8f0aee7a036cdc4904bea63f8aa2aa476830963fe6cd1b7650ef97d28fa9a62584dc9aa2de49802bac1bac0822767d8536a466ac5d3638d9d6739a80338ea8c1c7c2961317e08f3ca71f9f104c68cda4c5c663709812a96e61c053cee0a122ab2c4055737bee6b353cf5820cf863cf7e8c2dd925893e843aa84d4bf6653986559aab36983fcf1b319a9d4efa273cc90efebc705d4011899da7919f2e661fee757ec9dbf92d5a890c62d16ec847894fb93e6669806e7736ae3756ce480e0d14c06c1e1c7ba76b258f7a69a1ad5bca09b56e38d3091cb5d7cdc8d209235aa38a008fc012b3ae78825e3ab780d865d6d29769a5adc9f12638cf3f25561ba24e400fef5cac1d39e6a23c23444b65575ffcc37357594083319222dc4156d272acaca4ee6c4353b3c35f1436649252c8f598e2b0a93d0eb807997cd0caca7bf9b0864154884e497043b2bda38f3248db76d08c9b7e21422b70c3730280373c709666965974ab13e90228b4e3a7eb7b03be79120a6d7e6f2bdebb769deb37f9eabb801691cb48cf49ae4dce58f463004c4c007bc44cf9132db0625bf6c7ad3220cc1415bde85adf832083a547e2fe4fa4fb30d1e012a3e04eab652ed36914bc32422bfb1a36420fd253e40a8b32a7b0708b6bae7a4a2728444e9342761b5a8432630787c47a235137359cfb27f4e3f15666925db03306cb4dc0939d6570da99a5ca11a3bb1f73aedbeb4b3d0d16e4188735cc009e74ce9b1b53d404d9c4be2f05d2b26c895547e4185744c0f2bc33ce66955487f9ebce3308f56bb65ac58ee615ea4daec950976e9e4d831dc89dca12bebe9740caffc5a054c149ba815ebe4825f6565f9689f824ae08bac831a8bfc2df1bdecec6f0b492e0047879a47b797a24aae4fdefa5baf778a60681882441f274968ef40ec83e5b5f11f3bded097a96d7fa9bee71d9db2058f3f22d8fe4669ab1def0c7a75d1136861ecfb9e1a12456760d2002c1b828f45bcc4d578e8d58d6290deaf6e0055ab1e366f75f7f2ddfc41682c0fb71054334d86462c0d2438cc6234a1045dc10268b2c3325d7cdf56fd3382223f584500a24a0e22512998294db5ff2269bf5391ebaef750641e34e6d7b7119fa0e8720a55d5e649af0250c92fcdf8e71f095e4480b9e7dab8b54a56ddb9ef3bce781b75476198994d61cc2431fb86c61fece879c761cff87f6fd6dffccc415a822bacab6f0ca7b56402a9609877b316e8bc0cc3a094368553f19afdd36ce416fbd8c94a72cb3c8645228da325cc6ed0af6a9953e0940e8e9b93f2cb3733b4f0d5e81aa465f9d8b82b730ef89b2d248910184ca4e873442f51ae2738c5116b49d69d9b1ca8fa5b1fc8b307f8d5c4f60c8a01800", 0x1000}}, 0x1006) 02:22:20 executing program 5: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x12, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000080)) timer_settime(0x0, 0x0, &(0x7f0000000340)={{0x0, 0x989680}, {0x0, 0x9}}, 0x0) timer_create(0x0, &(0x7f0000000000)={0x0, 0x14, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000200)=0x0) timer_settime(r0, 0x0, &(0x7f0000000180)={{0x0, 0x989680}, {0x0, 0x1c9c380}}, 0x0) accept(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f0000000340)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) clock_gettime(0x0, &(0x7f0000000080)={0x0, 0x0}) pselect6(0x0, 0x0, 0x0, 0x0, &(0x7f0000000200)={0x0, r1+30000000}, 0x0) [ 933.645599][T19262] batman_adv: Cannot find parent device [ 933.688768][T19262] batman_adv: batadv0: Adding interface: gretap857 [ 933.729939][T19262] batman_adv: batadv0: The MTU of interface gretap857 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. [ 933.794846][T19262] batman_adv: batadv0: Not using interface gretap857 (retrying later): interface not active [ 933.821894][T19267] netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. [ 933.840658][T19261] netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. 02:22:20 executing program 1: syz_open_procfs(0x0, &(0x7f0000000100)='fd/3\x00') r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000080)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000032000/0x18000)=nil, &(0x7f0000000280)=[@text32={0x20, &(0x7f0000000140)="b9800000c00f3235010000000f309a090000006500660f3882af724d00002ed8ddc74424008fc4bd87c7442402c43a727fc7442406000000000f011424f30f090f013a360f06c4c18d72d68366baa100ed", 0x51}], 0x1, 0x0, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000bf7000)={0x0, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f00000002c0)={[0x4, 0x0, 0x40000007, 0x0, 0x0, 0x0, 0x4cb]}) ioctl$KVM_RUN(r2, 0xae80, 0x0) perf_event_open(&(0x7f0000000000)={0x0, 0x70, 0x0, 0xfc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa, @perf_config_ext, 0x218, 0x0, 0x0, 0x0, 0x0, 0x10}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$KVM_RUN(r2, 0xae80, 0x0) 02:22:20 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f00000002c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000280)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000680)=ANY=[@ANYBLOB="480000001000050700"/18, @ANYRES32=r1, @ANYBLOB="0000000000000000280012000c000100766574680000000018000200fd0001000000000023c0306554362dddcb892ef8051404bde5bf296e3c56e200d724f7ead1ef33adfdbe08b8c5236b93b9797b4409f6e370d1515d2e1fa63259e6d4bd05772981", @ANYRES32=0x0, @ANYBLOB="e371a01c7d83e16db1918b5328546fd0db633ad73f48121530e272e1e1c5c2d65138cf6c000062440000"], 0x5}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0xfffffffffffffdf6, &(0x7f0000000240)={&(0x7f00000000c0)=@newlink={0x28, 0x10, 0x825, 0x0, 0x0, {0x0, 0x0, 0x0, r1}, [@IFLA_PROTO_DOWN={0x8, 0xa, 0x14}]}, 0x28}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=@newlink={0x48, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x20040}, [@IFLA_LINKINFO={0x28, 0x12, 0x0, 0x1, @veth={{0x9, 0x1, 'veth\x00'}, {0x18, 0x2, 0x0, 0x1, @val=@VETH_INFO_PEER={0x14, 0x1, {{0x0, 0x0, 0x0, r1, 0x800, 0x88}}}}}}]}, 0x48}}, 0x40) 02:22:20 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000200000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:20 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acec, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 934.078135][T19295] kvm [19290]: vcpu0, guest rIP: 0x145 Hyper-V unhandled rdmsr: 0x4000003c [ 934.110784][T19295] kvm [19290]: vcpu0, guest rIP: 0x145 Hyper-V unhandled rdmsr: 0x40000059 02:22:21 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x20, 0x0, 0x0, 0x7f, 0x14000, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x3, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x6a7}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$dlm_control(0xffffffffffffff9c, &(0x7f0000000240)='/dev/dlm-control\x00', 0x10200, 0x0) ioctl$DRM_IOCTL_MODE_ATOMIC(r1, 0xc03864bc, &(0x7f0000000400)={0x400, 0x1, &(0x7f0000000280)=[0xfff], &(0x7f0000000340)=[0x9, 0xffffffff, 0x3, 0xe3e1, 0x2d9ff6e7, 0x7, 0x20, 0x1ff, 0xf9e5], &(0x7f0000000380)=[0x0, 0xfff, 0x100, 0x458], &(0x7f00000003c0)=[0xcfd], 0x0, 0x7ff}) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000440)=@getneigh={0x14, 0x1e, 0x10, 0x70bd2a, 0x25dfdbfc, {}, ["", "", ""]}, 0x14}}, 0x20000040) r2 = openat$vcs(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vcs\x00', 0x10000, 0x0) syz_open_dev$dmmidi(&(0x7f0000000200)='/dev/dmmidi#\x00', 0x3, 0x202702) getpeername$unix(r2, &(0x7f0000000180), &(0x7f0000000100)=0x6e) ioctl$PPPIOCNEWUNIT(0xffffffffffffffff, 0xc004743e, &(0x7f0000000040)=0x1) 02:22:21 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0xc) [ 934.154614][T19295] kvm [19290]: vcpu0, guest rIP: 0x145 Hyper-V unhandled rdmsr: 0x4000005d 02:22:21 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000300000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 934.198364][T19295] kvm [19290]: vcpu0, guest rIP: 0x145 Hyper-V unhandled rdmsr: 0x4000008c [ 934.232382][T19295] kvm [19290]: vcpu0, guest rIP: 0x145 Hyper-V unhandled rdmsr: 0x40000051 [ 934.257946][T19295] kvm [19290]: vcpu0, guest rIP: 0x145 Hyper-V unhandled rdmsr: 0x40000005 [ 934.279173][T19295] kvm [19290]: vcpu0, guest rIP: 0x145 Hyper-V unhandled rdmsr: 0x40000085 [ 934.285517][T19312] batman_adv: Cannot find parent device [ 934.306666][T19295] kvm [19290]: vcpu0, guest rIP: 0x145 Hyper-V unhandled rdmsr: 0x40000035 [ 934.332744][T19312] batman_adv: batadv0: Adding interface: gretap858 [ 934.339782][T19295] kvm [19290]: vcpu0, guest rIP: 0x145 Hyper-V unhandled rdmsr: 0x40000019 02:22:21 executing program 5: rt_sigprocmask(0x0, &(0x7f0000000040)={[0xfffffffffffffffc]}, 0x0, 0x8) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = socket$inet_udplite(0x2, 0x2, 0x88) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = fcntl$dupfd(r2, 0x0, r5) r7 = dup3(r1, r6, 0x0) close(r0) pipe(&(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$binfmt_elf64(r8, 0x0, 0x8) splice(r0, 0x0, r7, 0x0, 0x2, 0x0) 02:22:21 executing program 3: r0 = perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$nl_route(0x10, 0x3, 0x0) write$binfmt_aout(r0, &(0x7f0000000340)={{0x108, 0x40, 0x31, 0x122, 0x306, 0x7, 0x237, 0x1a}, "4de12767959e7ca68dd79d84de0f6ede0ded5879cd6ff74d425808db1e917fcc930fe9dd87e70c55d82e4fdd69dc526dad602ce92023638b34f9593e4279dc67af874558f3c61a71cf3300ad5c0756db97226709091bc5375a89eaaf2cc3a39c3025d67ad0b2f736fd5444e3f6536fff6916d1ce91d8", [[], [], [], [], [], [], [], [], []]}, 0x996) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) write$P9_RSTAT(r1, &(0x7f00000000c0)={0x4e, 0x7d, 0x1, {0x0, 0x47, 0x3, 0x6, {0x40, 0x4, 0x2}, 0x800000, 0x1000, 0x4965, 0x3, 0x0, '', 0x7, 'gretap\x00', 0x4, 'eth1', 0x9, 'mime_type'}}, 0x4e) r2 = socket$inet6(0xa, 0x5, 0x0) close(r2) r3 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r3, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r2, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r2, r3, 0x0, 0x80001d00c0d0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000040)={'batadv0\x00', 0x0}) sendmsg$nl_route(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)=@getstats={0x1c, 0x5e, 0x400, 0x70bd2b, 0x25dfdbfe, {0x0, 0x0, 0x0, r4, 0x2}, ["", "", "", "", ""]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x40080) [ 934.361382][T19312] batman_adv: batadv0: The MTU of interface gretap858 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 934.367353][T19295] kvm [19290]: vcpu0, guest rIP: 0x145 Hyper-V unhandled rdmsr: 0x4000002c [ 934.512560][T19312] batman_adv: batadv0: Not using interface gretap858 (retrying later): interface not active 02:22:21 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x8010000000000084) bind$inet6(r0, &(0x7f00000000c0)={0xa, 0x4e21, 0x0, @empty}, 0x1c) connect$inet6(r0, &(0x7f0000000100)={0xa, 0x404e21, 0x0, @ipv4={[], [], @local}}, 0x1c) setsockopt$inet_sctp6_SCTP_PEER_ADDR_PARAMS(r0, 0x84, 0x25, &(0x7f0000000240)={0x0, @in6={{0x2, 0x0, 0x0, @dev}}, 0x0, 0x2}, 0x9c) 02:22:21 executing program 5: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) dup(r0) clone(0x8000000002380, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r1 = socket$inet_icmp_raw(0x2, 0x3, 0x1) setsockopt$IPT_SO_SET_REPLACE(r1, 0x0, 0x40, &(0x7f0000000900)=@mangle={'mangle\x00', 0x44, 0x6, 0x3d0, 0x0, 0x98, 0x0, 0x278, 0x98, 0x338, 0x338, 0x338, 0x338, 0x338, 0x6, 0x0, {[{{@ip={@broadcast, @multicast2, 0x0, 0x0, 'geneve1\x00', 'ip6gre0\x00', {}, {}, 0x11, 0x0, 0x4a}, 0x0, 0x70, 0x98}, @unspec=@CHECKSUM={0x28, 'CHECKSUM\x00'}}, {{@ip={@empty, @multicast2, 0x0, 0x0, 'veth1_macvtap\x00', 'veth0_to_bond\x00'}, 0x0, 0x70, 0x98}, @TTL={0x28, 'TTL\x00'}}, {{@uncond, 0x0, 0x70, 0xb0}, @inet=@TPROXY1={0x40, 'TPROXY\x00', 0x1, {0x0, 0x0, @ipv6=@ipv4={[], [], @remote}}}}, {{@ip={@rand_addr, @multicast2, 0x0, 0x0, 'syzkaller0\x00', 'bond0\x00'}, 0x0, 0x70, 0x98}, @unspec=@CHECKSUM={0x28, 'CHECKSUM\x00'}}, {{@ip={@broadcast, @initdev={0xac, 0x1e, 0x0, 0x0}, 0x0, 0x0, 'veth1_virt_wifi\x00', 'batadv_slave_1\x00'}, 0x0, 0x98, 0xc0, 0x0, {}, [@common=@icmp={{0x28, 'icmp\x00'}, {0x0, "120a"}}]}, @common=@unspec=@NFQUEUE3={0x28, 'NFQUEUE\x00'}}], {{[], 0x0, 0x70, 0x98}, {0x28}}}}, 0x430) [ 934.727220][ T27] audit: type=1800 audit(1589682141.540:193): pid=19343 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=16381 res=0 [ 934.758341][T19353] xt_CHECKSUM: CHECKSUM should be avoided. If really needed, restrict with "-p udp" and only use in OUTPUT 02:22:21 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x74, 0x0, 0x8, 0x0, 0x7f, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0xfffffffffffffffd}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="3c000000100001040000000000000000000000005a6cd48e46e20a26c6a2afae823d2f9bfb83234f624b9c7fd3fa1552703696cb88112b117799999b1ea938a597b9c9b20bf900343442bf99349d14bd82563d4bd472e91ae6b23df3ef37a3", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB], 0x3c}}, 0x0) r1 = socket$inet6(0xa, 0x5, 0x0) close(r1) r2 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r2, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r1, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r1, r2, 0x0, 0x80001d00c0d0) r3 = syz_open_dev$media(&(0x7f00000000c0)='/dev/media#\x00', 0x5, 0x4200) r4 = socket$inet_sctp(0x2, 0x5, 0x84) r5 = dup3(0xffffffffffffffff, r4, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r4, 0x84, 0x64, &(0x7f0000000040)=[@in={0x2, 0x4e20, @empty}], 0x10) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r4, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r4, 0x84, 0x1d, &(0x7f000025e000)={0x2, [0x0, 0x0]}, &(0x7f0000a8a000)=0xc) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(r5, 0x84, 0x6c, &(0x7f000059aff8)={r6}, &(0x7f000034f000)=0x2059b000) getsockopt$inet_sctp_SCTP_SOCKOPT_PEELOFF(0xffffffffffffffff, 0x84, 0x66, &(0x7f0000000180)={r6, 0x7}, &(0x7f00000001c0)=0x8) setsockopt$inet_sctp_SCTP_PEER_ADDR_PARAMS(r2, 0x84, 0x9, &(0x7f0000000200)={r7, @in6={{0xa, 0x4e22, 0x10001, @mcast1, 0x8}}, 0x6, 0x7fff, 0x0, 0x6, 0x64, 0x8}, 0x9c) bind$rds(r3, &(0x7f0000000040)={0x2, 0x4e20, @rand_addr=0x64010100}, 0x10) 02:22:21 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000400000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:21 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1aced, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 934.839873][T19353] x_tables: ip_tables: TPROXY target: used from hooks FORWARD, but only usable from PREROUTING [ 934.926540][T19367] x_tables: ip_tables: TPROXY target: used from hooks FORWARD, but only usable from PREROUTING 02:22:21 executing program 5: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$unix(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = fcntl$dupfd(r1, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) bpf$BPF_BTF_LOAD(0x12, &(0x7f00000001c0)={&(0x7f0000000200)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x24, 0x24, 0x2, [@func_proto, @array={0x0, 0x0, 0x0, 0x3, 0x0, {0x2, 0x1}}]}}, &(0x7f0000000340)=""/142, 0x3e, 0x8e, 0x8}, 0x20) [ 935.018763][T19363] netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. [ 935.057764][T19369] batman_adv: Cannot find parent device [ 935.100725][T19369] batman_adv: batadv0: Adding interface: gretap859 [ 935.107334][T19369] batman_adv: batadv0: The MTU of interface gretap859 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. [ 935.138742][T19382] BPF:[2] ARRAY (anon) [ 935.149828][T19382] BPF:type_id=2 index_type_id=1 nr_elems=0 [ 935.164315][T19382] BPF: [ 935.173631][T19369] batman_adv: batadv0: Not using interface gretap859 (retrying later): interface not active [ 935.177532][T19382] BPF:Invalid index [ 935.201852][T19382] BPF: [ 935.201852][T19382] [ 935.219573][T19382] BPF:[2] ARRAY (anon) [ 935.229872][T19382] BPF:type_id=2 index_type_id=1 nr_elems=0 02:22:22 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x1003) [ 935.257339][T19382] BPF: [ 935.278199][T19382] BPF:Invalid index [ 935.292232][T19382] BPF: [ 935.292232][T19382] 02:22:22 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acee, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:22 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000500000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:22 executing program 5: r0 = syz_open_dev$tty20(0xc, 0x4, 0x1) ioctl$VT_GETMODE(r0, 0x4b71, &(0x7f0000000100)) [ 935.515928][T19399] batman_adv: Cannot find parent device [ 935.537175][T19399] batman_adv: batadv0: Adding interface: gretap860 02:22:22 executing program 5: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x12, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000080)) timer_settime(0x0, 0x0, &(0x7f0000000340)={{0x0, 0x989680}, {0x0, 0x9}}, 0x0) timer_create(0x0, &(0x7f0000000000)={0x0, 0x14, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000200)=0x0) timer_settime(r0, 0x0, &(0x7f0000000180)={{0x0, 0x989680}, {0x0, 0x1c9c380}}, 0x0) dup(0xffffffffffffffff) perf_event_open(&(0x7f0000000340)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) clock_gettime(0x0, &(0x7f0000000080)={0x0, 0x0}) pselect6(0x0, 0x0, 0x0, &(0x7f0000000140), &(0x7f0000000200)={0x0, r1+30000000}, 0x0) 02:22:22 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0x2}, 0x0, 0x0, 0x100}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x6, 0x0) bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c) r1 = socket$inet_dccp(0x2, 0x6, 0x0) getpid() listen(r0, 0x6) setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1) getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x1d, &(0x7f0000000040)=ANY=[@ANYBLOB="000000005e363490942de07116458e3ba2e4cacad0f750e14ccaf3570f5df2dd091038164ea4fd"], 0x0) connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev={0xac, 0x14, 0x14, 0x2e}}, 0x10) sendmmsg(r1, &(0x7f0000000ac0)=[{{0x0, 0x0, &(0x7f0000000180)=[{&(0x7f0000000880)='T', 0x1}], 0x1}}], 0x503, 0x4) ioctl$VIDIOC_QUERYBUF(0xffffffffffffffff, 0xc0585609, 0x0) [ 935.546902][T19399] batman_adv: batadv0: The MTU of interface gretap860 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. [ 935.590916][T19399] batman_adv: batadv0: Not using interface gretap860 (retrying later): interface not active 02:22:22 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acef, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:22 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=ANY=[@ANYBLOB="3c0000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000007000000c00028008000100", @ANYRES32=0x0, @ANYBLOB], 0x3c}}, 0x0) 02:22:22 executing program 1: perf_event_open(&(0x7f00000001c0)={0x2, 0x70, 0xe8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10000003, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000180)='net/dev_mcast\x00') fchmod(r0, 0x0) [ 935.847751][T19425] batman_adv: Cannot find parent device [ 935.886188][T19425] batman_adv: batadv0: Adding interface: gretap861 [ 935.898873][T19425] batman_adv: batadv0: The MTU of interface gretap861 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:22 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000600000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:22 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x1005) [ 935.945525][T19425] batman_adv: batadv0: Not using interface gretap861 (retrying later): interface not active [ 935.960967][T19437] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. 02:22:22 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acf0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 936.014106][T19441] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. 02:22:22 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_LIST(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000440)=ANY=[@ANYBLOB="1c000000070601010000000000000000000000000500010006"], 0x1c}}, 0x0) 02:22:22 executing program 3: setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(0xffffffffffffffff, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in={0x2, 0x4e24, @loopback}], 0x10) connect$inet6(0xffffffffffffffff, &(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) r0 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r0, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) getsockname$packet(r0, &(0x7f00000001c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000200)=0x14) ioctl$sock_inet6_SIOCDELRT(0xffffffffffffffff, 0x890c, &(0x7f0000000240)={@ipv4={[], [], @loopback}, @mcast2, @mcast1, 0xfffff3e5, 0x5, 0x5, 0x400, 0x9, 0x80000000, r1}) r2 = add_key$keyring(&(0x7f0000000040)='keyring\x00', &(0x7f00000000c0)={'syz', 0x1}, 0x0, 0x0, 0xffffffffffffffff) keyctl$get_persistent(0x16, 0x0, r2) perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r3 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000100)=ANY=[@ANYBLOB="0600000010000104000010000000000000000000", @ANYRES32=0x0, @ANYBLOB="d1020400108004001400030069703667726574617030000000000000"], 0x34}}, 0x0) iopl(0x75) r4 = socket$inet6(0xa, 0x5, 0x0) close(r4) r5 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r5, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r4, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r4, r5, 0x0, 0x80001d00c0d0) ioctl$PERF_EVENT_IOC_SET_FILTER(r5, 0x40082406, &(0x7f0000000380)='!proc\x00') syz_open_dev$sg(&(0x7f0000000000)='/dev/sg#\x00', 0x4, 0x14003) 02:22:23 executing program 1: keyctl$instantiate(0xc, 0x0, &(0x7f0000000100)=ANY=[@ANYBLOB='new default user:syz 040'], 0x1, 0x0) r0 = add_key(&(0x7f0000000140)='encrypted\x00', &(0x7f0000000180)={'syz'}, &(0x7f0000000100), 0xca, 0xfffffffffffffffe) syz_open_procfs(0x0, 0x0) keyctl$read(0xb, r0, &(0x7f0000000240)=""/112, 0x349b7f55) [ 936.287477][T19451] batman_adv: Cannot find parent device [ 936.329006][T19451] batman_adv: batadv0: Adding interface: gretap862 [ 936.344224][T19451] batman_adv: batadv0: The MTU of interface gretap862 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:23 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) [ 936.376529][T19465] encrypted_key: keyword 'new' not allowed when called from .update method [ 936.407291][T19451] batman_adv: batadv0: Not using interface gretap862 (retrying later): interface not active 02:22:23 executing program 5: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)=ANY=[@ANYBLOB="480000000206010800000000000000000000000005000400000000000900020073797a30000000000500010006000000050005000a00000010000300686173683a69702c6d6163"], 0x48}}, 0x0) 02:22:23 executing program 3: r0 = perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x7, 0x0, 0x7e, 0x800, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0xfffffffffffffffe}}, 0x0, 0x1, 0xffffffffffffffff, 0x0) pause() r1 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) ioctl$int_in(r0, 0x5452, &(0x7f0000000040)=0x8) 02:22:23 executing program 1: mkdir(&(0x7f00000001c0)='./file0\x00', 0x0) mkdir(&(0x7f00000009c0)='./file1\x00', 0x0) r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0xfb4}, 0x0, 0x0, 0x5, 0x0, 0x0, 0x0, 0x4000}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) fremovexattr(r0, &(0x7f00000004c0)=ANY=[@ANYBLOB="757365722e73656c696e75786259007600fde0587832f308843010eb127cc1521045e967ff0a121e32c8fa6bf813ba2755af4ab09c088e184c78c1ff77ee3cbc14c3a2a051f30a46a2eb84541ae3570b3180fd6ed1fc0e6a9fdc5c7d0700000000000000544afb3456716c62c93b7bcbab0cb95ca719c118bdf8d12243c71b1025b2d71028291c72df47da8d3efff771ebe6d82936f2f59763b54e2410133621a7402c8693805fee2aad6acf"]) readlinkat(0xffffffffffffffff, &(0x7f0000000340)='./file0\x00', &(0x7f0000000400)=""/154, 0x9a) setxattr$system_posix_acl(&(0x7f0000000580)='./file1\x00', &(0x7f00000005c0)='system.posix_acl_default\x00', 0x0, 0x0, 0x0) r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040)='/dev/nullb0\x00', 0x800, 0x0) fsetxattr$trusted_overlay_redirect(r1, &(0x7f0000000080)='trusted.overlay.redirect\x00', &(0x7f0000000140)='./file1\x00', 0x8, 0x2) mount$overlay(0x40000a, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0)='overlay\x00', 0x800000, &(0x7f0000000100)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './file1'}, 0x5c}], [], 0xf603000000000000}) syz_mount_image$msdos(&(0x7f00000002c0)='msdos\x00', 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f00000008c0)=ANY=[@ANYRESDEC=0x0, @ANYBLOB=',\x00']) mount(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f0000000240)='cgroup2\x00', 0x0, 0x0) openat$nullb(0xffffffffffffff9c, 0x0, 0x10000, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f00000003c0)={0xa, 0x0, 0x0, @remote, 0x1}, 0x1c) r2 = socket$inet6(0xa, 0x0, 0x0) bind$inet6(r2, &(0x7f0000f5dfe4)={0xa, 0x4e22, 0x0, @rand_addr, 0x7}, 0x1c) pipe(&(0x7f00000002c0)={0xffffffffffffffff}) dup2(r2, r3) accept4$packet(r3, &(0x7f00000006c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000700)=0x14, 0x80000) setsockopt$inet6_IPV6_PKTINFO(0xffffffffffffffff, 0x29, 0x32, &(0x7f0000000740)={@empty, r4}, 0x14) recvfrom$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000200)={0xa, 0x0, 0x0, @local}, 0x1c) 02:22:23 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000700000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:23 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acf1, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:23 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x1012) [ 936.783051][T19486] batman_adv: Cannot find parent device [ 936.805913][T19486] batman_adv: batadv0: Adding interface: gretap863 [ 936.821683][T19486] batman_adv: batadv0: The MTU of interface gretap863 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. [ 936.899164][T19486] batman_adv: batadv0: Not using interface gretap863 (retrying later): interface not active 02:22:23 executing program 5: 02:22:23 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acf2, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:23 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000a00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 937.039390][T19499] overlayfs: filesystem on './file0' not supported as upperdir 02:22:23 executing program 5: 02:22:24 executing program 1: mkdir(&(0x7f00000001c0)='./file0\x00', 0x0) mkdir(&(0x7f00000009c0)='./file1\x00', 0x0) r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0xfb4}, 0x0, 0x0, 0x5, 0x0, 0x0, 0x0, 0x4000}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) fremovexattr(r0, &(0x7f00000004c0)=ANY=[@ANYBLOB="757365722e73656c696e75786259007600fde0587832f308843010eb127cc1521045e967ff0a121e32c8fa6bf813ba2755af4ab09c088e184c78c1ff77ee3cbc14c3a2a051f30a46a2eb84541ae3570b3180fd6ed1fc0e6a9fdc5c7d0700000000000000544afb3456716c62c93b7bcbab0cb95ca719c118bdf8d12243c71b1025b2d71028291c72df47da8d3efff771ebe6d82936f2f59763b54e2410133621a7402c8693805fee2aad6acf"]) readlinkat(0xffffffffffffffff, &(0x7f0000000340)='./file0\x00', &(0x7f0000000400)=""/154, 0x9a) setxattr$system_posix_acl(&(0x7f0000000580)='./file1\x00', &(0x7f00000005c0)='system.posix_acl_default\x00', 0x0, 0x0, 0x0) r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040)='/dev/nullb0\x00', 0x800, 0x0) fsetxattr$trusted_overlay_redirect(r1, &(0x7f0000000080)='trusted.overlay.redirect\x00', &(0x7f0000000140)='./file1\x00', 0x8, 0x2) mount$overlay(0x40000a, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0)='overlay\x00', 0x800000, &(0x7f0000000100)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './file1'}, 0x5c}], [], 0xf603000000000000}) syz_mount_image$msdos(&(0x7f00000002c0)='msdos\x00', 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f00000008c0)=ANY=[@ANYRESDEC=0x0, @ANYBLOB=',\x00']) mount(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f0000000240)='cgroup2\x00', 0x0, 0x0) openat$nullb(0xffffffffffffff9c, 0x0, 0x10000, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f00000003c0)={0xa, 0x0, 0x0, @remote, 0x1}, 0x1c) r2 = socket$inet6(0xa, 0x0, 0x0) bind$inet6(r2, &(0x7f0000f5dfe4)={0xa, 0x4e22, 0x0, @rand_addr, 0x7}, 0x1c) pipe(&(0x7f00000002c0)={0xffffffffffffffff}) dup2(r2, r3) accept4$packet(r3, &(0x7f00000006c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000700)=0x14, 0x80000) setsockopt$inet6_IPV6_PKTINFO(0xffffffffffffffff, 0x29, 0x32, &(0x7f0000000740)={@empty, r4}, 0x14) recvfrom$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000200)={0xa, 0x0, 0x0, @local}, 0x1c) 02:22:24 executing program 5: mkdir(&(0x7f00000001c0)='./file0\x00', 0x0) mkdir(&(0x7f00000009c0)='./file1\x00', 0x0) r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0xfb4}, 0x0, 0x0, 0x5, 0x0, 0x0, 0x0, 0x4000}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) fremovexattr(r0, &(0x7f00000004c0)=ANY=[@ANYBLOB="757365722e73656c696e75786259007600fde0587832f308843010eb127cc1521045e967ff0a121e32c8fa6bf813ba2755af4ab09c088e184c78c1ff77ee3cbc14c3a2a051f30a46a2eb84541ae3570b3180fd6ed1fc0e6a9fdc5c7d0700000000000000544afb3456716c62c93b7bcbab0cb95ca719c118bdf8d12243c71b1025b2d71028291c72df47da8d3efff771ebe6d82936f2f59763b54e2410133621a7402c8693805fee2aad6acf"]) readlinkat(0xffffffffffffffff, &(0x7f0000000340)='./file0\x00', &(0x7f0000000400)=""/154, 0x9a) setxattr$system_posix_acl(&(0x7f0000000580)='./file1\x00', &(0x7f00000005c0)='system.posix_acl_default\x00', 0x0, 0x0, 0x0) r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040)='/dev/nullb0\x00', 0x800, 0x0) fsetxattr$trusted_overlay_redirect(r1, &(0x7f0000000080)='trusted.overlay.redirect\x00', &(0x7f0000000140)='./file1\x00', 0x8, 0x2) mount$overlay(0x40000a, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0)='overlay\x00', 0x800000, &(0x7f0000000100)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './file1'}, 0x5c}], [], 0xf603000000000000}) syz_mount_image$msdos(&(0x7f00000002c0)='msdos\x00', 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f00000008c0)=ANY=[@ANYRESDEC=0x0, @ANYBLOB=',\x00']) mount(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f0000000240)='cgroup2\x00', 0x0, 0x0) openat$nullb(0xffffffffffffff9c, 0x0, 0x10000, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f00000003c0)={0xa, 0x0, 0x0, @remote, 0x1}, 0x1c) r2 = socket$inet6(0xa, 0x0, 0x0) bind$inet6(r2, &(0x7f0000f5dfe4)={0xa, 0x4e22, 0x0, @rand_addr, 0x7}, 0x1c) pipe(&(0x7f00000002c0)={0xffffffffffffffff}) dup2(r2, r3) accept4$packet(r3, &(0x7f00000006c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000700)=0x14, 0x80000) setsockopt$inet6_IPV6_PKTINFO(0xffffffffffffffff, 0x29, 0x32, &(0x7f0000000740)={@empty, r4}, 0x14) recvfrom$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000200)={0xa, 0x0, 0x0, @local}, 0x1c) [ 937.260144][T19524] batman_adv: Cannot find parent device [ 937.288452][T19524] batman_adv: batadv0: Adding interface: gretap864 [ 937.319360][T19524] batman_adv: batadv0: The MTU of interface gretap864 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 937.446826][T19524] batman_adv: batadv0: Not using interface gretap864 (retrying later): interface not active 02:22:24 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x1088) 02:22:24 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r1, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) clock_gettime(0x0, &(0x7f00000000c0)={0x0, 0x0}) utimensat(r1, &(0x7f0000000040)='./file0\x00', &(0x7f0000000100)={{r2, r3/1000+60000}, {0x77359400}}, 0x100) r4 = socket$caif_stream(0x25, 0x1, 0x2) ioctl$sock_SIOCSIFVLAN_SET_VLAN_FLAG_CMD(r4, 0x8983, &(0x7f0000000180)={0x7, 'ip6gre0\x00', {0x101}, 0x1268}) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) ioctl$KDDISABIO(r1, 0x4b37) 02:22:24 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000c00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:24 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acf3, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 937.648571][T19540] overlayfs: conflicting lowerdir path 02:22:24 executing program 1: 02:22:24 executing program 1: 02:22:24 executing program 5: [ 937.945747][T19563] batman_adv: Cannot find parent device [ 937.980566][T19563] batman_adv: batadv0: Adding interface: gretap865 [ 937.994848][T19563] batman_adv: batadv0: The MTU of interface gretap865 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. 02:22:24 executing program 1: [ 938.060520][T19563] batman_adv: batadv0: Not using interface gretap865 (retrying later): interface not active 02:22:24 executing program 5: 02:22:25 executing program 1: 02:22:25 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acf4, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:25 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000e00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 938.347043][T19590] batman_adv: Cannot find parent device [ 938.357567][T19590] batman_adv: batadv0: Adding interface: gretap866 [ 938.368776][T19590] batman_adv: batadv0: The MTU of interface gretap866 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 938.439729][T19590] batman_adv: batadv0: Not using interface gretap866 (retrying later): interface not active 02:22:25 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0xfdef) 02:22:25 executing program 1: 02:22:25 executing program 5: 02:22:25 executing program 3: r0 = perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x4}, 0x0, 0xa, 0xffffffffffffffff, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x0, 0x0) r2 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r2, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) setsockopt$CAN_RAW_ERR_FILTER(r2, 0x65, 0x2, &(0x7f0000000180)=0x3, 0x4) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) ioctl$VIDIOC_QUERYBUF(r1, 0xc0585609, &(0x7f00000000c0)={0x7, 0x4, 0x4, 0x800, 0x1000, {0x0, 0xea60}, {0x3, 0x2, 0x40, 0x1, 0x4, 0x5, "2bbe7852"}, 0x0, 0x0, @fd, 0x7bff7ae4, 0x0, r0}) setsockopt$inet_tcp_TCP_REPAIR_OPTIONS(r3, 0x6, 0x16, &(0x7f0000000040)=[@mss={0x2, 0x1}, @window={0x3, 0xa2, 0x2}, @sack_perm, @mss={0x2, 0x401}, @timestamp, @timestamp, @mss={0x2, 0x4}, @sack_perm], 0x8) r4 = socket$nl_route(0x10, 0x3, 0x0) ftruncate(r3, 0x200) sendmsg$nl_route(r4, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) 02:22:25 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000f00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:25 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acf5, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:25 executing program 1: 02:22:25 executing program 5: 02:22:25 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r0, 0x1276, 0x0) r1 = accept$inet(r0, &(0x7f0000001340)={0x2, 0x0, @broadcast}, &(0x7f0000001380)=0x10) getsockopt$inet_IP_IPSEC_POLICY(r1, 0x0, 0x10, &(0x7f00000013c0)={{{@in=@loopback, @in6=@loopback}}, {{@in=@multicast1}, 0x0, @in6=@remote}}, &(0x7f00000014c0)=0xe8) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = syz_open_dev$audion(&(0x7f0000000040)='/dev/audio#\x00', 0x7, 0x102) ioctl$sock_bt_bnep_BNEPGETCONNLIST(r3, 0x800442d2, &(0x7f0000000180)={0x3, &(0x7f00000000c0)=[{0x0, 0x0, 0x0, @link_local}, {0x0, 0x0, 0x0, @broadcast}, {0x0, 0x0, 0x0, @broadcast}]}) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) [ 938.738540][T19616] batman_adv: Cannot find parent device [ 938.768052][T19616] batman_adv: batadv0: Adding interface: gretap867 02:22:25 executing program 1: 02:22:25 executing program 5: [ 938.790405][T19616] batman_adv: batadv0: The MTU of interface gretap867 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. 02:22:25 executing program 5: [ 938.898646][T19616] batman_adv: batadv0: Not using interface gretap867 (retrying later): interface not active 02:22:26 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x2000124c) 02:22:26 executing program 1: 02:22:26 executing program 5: 02:22:26 executing program 3: r0 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r0, 0x1276, 0x0) ioctl$TCSETS2(r0, 0x402c542b, &(0x7f0000000040)={0x500, 0xfffeffff, 0x9, 0x8, 0x40, "9803a7ae338706f196dbec760e9c0fb1f909a3", 0x7406, 0xffff}) perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0xff, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x4, 0x0, 0x0, 0x80, 0x0, 0xfffe}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r2, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) ioctl$RTC_WKALM_RD(r2, 0x80287010, &(0x7f0000000000)) sendmsg$nl_route(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c00000000000069d70d1b20224a1e5ce7ecca1db6945f254d9ec846cb5ff84d6c9932f75274c25098b08377eb53cd9070ea72cd47053a6d18b0f5b618e2ee15c46ac71c6c7d362827adb6311d25303c1f37f80520fe98e3f100000000000000000000000000d4e16d22f7d12b562effacd0588a34e1fc35c681bf92edaa1ce72c2dee164916a01b62f06d454eaddedd7f3844d6953de07b758d3aee0f0805eabfd74b53b7ec1207b09925b75d98ea5813f45786068f93fa318379821faa5cedffab0b517e42af8941b86419aee62a6bb0", @ANYRES32=0x0, @ANYBLOB="00000100800b0001006772657461700000160002800800050002000000db25667839bf5c906119d476c80749ae3a37109d75fe759aa5b8af9108d6271e2b6cb3467f0576", @ANYRES32=0x0, @ANYBLOB], 0x3c}}, 0x0) 02:22:26 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acf6, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:26 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00001000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 939.426057][T19655] batman_adv: Cannot find parent device [ 939.438849][T19655] batman_adv: batadv0: Adding interface: gretap868 02:22:26 executing program 5: 02:22:26 executing program 1: [ 939.464285][T19655] batman_adv: batadv0: The MTU of interface gretap868 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. 02:22:26 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9aa5, 0x0, @perf_config_ext, 0x0, 0x0, 0xffffffff}, 0x0, 0x5, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) 02:22:26 executing program 5: [ 939.550674][T19655] batman_adv: batadv0: Not using interface gretap868 (retrying later): interface not active 02:22:26 executing program 1: 02:22:26 executing program 5: 02:22:26 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0xfffffdef) 02:22:26 executing program 1: 02:22:26 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acf7, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:26 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00004800000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:26 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r1, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) getsockopt$inet6_udp_int(r1, 0x11, 0x1, &(0x7f0000000000), &(0x7f0000000040)=0x4) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="3c0000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB="2986ce538d0e7abed789930ba521bf1a423d995d8bf4cff988"], 0x3c}}, 0x0) 02:22:26 executing program 5: [ 939.978650][T19691] batman_adv: Cannot find parent device [ 940.008817][T19691] batman_adv: batadv0: Adding interface: gretap869 02:22:26 executing program 1: 02:22:26 executing program 5: [ 940.024325][T19691] batman_adv: batadv0: The MTU of interface gretap869 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:26 executing program 5: [ 940.107207][T19691] batman_adv: batadv0: Not using interface gretap869 (retrying later): interface not active 02:22:27 executing program 1: 02:22:27 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acf8, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:27 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$nl_route(0x10, 0x3, 0x0) r0 = syz_open_dev$mouse(&(0x7f0000000000)='/dev/input/mouse#\x00', 0x6, 0x10c00) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r1, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x4, &(0x7f0000000040)={0xffffffffffffffff}, 0x106, 0x2}}, 0x20) write$RDMA_USER_CM_CMD_BIND_IP(r0, &(0x7f00000000c0)={0x2, 0x28, 0xfa00, {0x0, {0xa, 0x4e21, 0x9, @private1, 0x6}, r2}}, 0x30) [ 940.428486][T19721] batman_adv: Cannot find parent device [ 940.469203][T19721] batman_adv: batadv0: Adding interface: gretap870 [ 940.488889][T19721] batman_adv: batadv0: The MTU of interface gretap870 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. [ 940.515988][T19721] batman_adv: batadv0: Not using interface gretap870 (retrying later): interface not active 02:22:27 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0xfffffffffffffdef) 02:22:27 executing program 5: 02:22:27 executing program 1: 02:22:27 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00004c00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:27 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6(0xa, 0x5, 0x0) close(r1) r2 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r2, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r1, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r1, r2, 0x0, 0x80001d00c0d0) ioctl$TCGETS2(r2, 0x802c542a, &(0x7f0000000040)) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) 02:22:27 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acf9, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:27 executing program 5: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000000000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) r3 = shmget$private(0x0, 0x1000, 0x54001800, &(0x7f0000fff000/0x1000)=nil) shmat(r3, &(0x7f0000000000/0x4000)=nil, 0xffffffffffffffff) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000000000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) ioctl$KVM_RUN(r2, 0xae80, 0x0) 02:22:27 executing program 1: r0 = syz_open_dev$dri(&(0x7f0000000240)='/dev/dri/card#\x00', 0x0, 0x0) ioctl$FS_IOC_GETVERSION(r0, 0x80087601, &(0x7f0000000180)) 02:22:27 executing program 1: perf_event_open(&(0x7f0000000100)={0x2000000005, 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, 0x3, @perf_bp={&(0x7f0000000000), 0x1}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) ptrace$setopts(0xffffffffffffffff, 0x0, 0x0, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) getsockopt$inet_tcp_buf(r1, 0x6, 0x1d, 0x0, &(0x7f0000000000)) 02:22:27 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00006000000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 940.927242][T19746] batman_adv: Cannot find parent device [ 940.940416][ T27] audit: type=1800 audit(1589682147.760:194): pid=19762 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="SYSV00000000" dev="hugetlbfs" ino=10 res=0 [ 940.969605][T19746] batman_adv: batadv0: Adding interface: gretap871 02:22:27 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x8010000000000084) bind$inet6(r0, &(0x7f0000ef8cfd)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) listen(r0, 0x7) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) accept4(r0, 0x0, 0x0, 0x0) setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX_OLD(r1, 0x84, 0x6b, &(0x7f000055bfe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) sysinfo(0x0) sendmsg$DCCPDIAG_GETSOCK(0xffffffffffffffff, 0x0, 0x40881) close(0xffffffffffffffff) [ 940.998265][T19746] batman_adv: batadv0: The MTU of interface gretap871 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 941.032465][ T27] audit: type=1800 audit(1589682147.840:195): pid=19744 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=16051 res=0 02:22:27 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x8, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x80920}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$inet6(0xa, 0x5, 0x6) close(r1) r2 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r2, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r1, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r1, r2, 0x0, 0x80001d00c0d0) fcntl$setflags(r1, 0x2, 0x1) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000003c0)=ANY=[@ANYBLOB="3c000000100001040000000000000000000000008e64c87edd7e7e712cc9758b0f5556a4c0d81526a5b9211d096955cd1fcf8bd1a9b4c6220871c45ec64fd6d712c39fec37977e584757", @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100", @ANYRES32=0x0, @ANYBLOB="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"], 0x3c}}, 0x0) r3 = socket$inet6(0xa, 0x5, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000080)={0xa, 0x4e23, 0x0, @private0={0xfc, 0x0, [], 0x1}}, 0x1c) r4 = dup2(0xffffffffffffffff, 0xffffffffffffffff) ioctl$TCSBRKP(r4, 0x5425, 0x4) close(r3) r5 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r5, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r3, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r3, r5, 0x0, 0x80001d00c0d0) setsockopt$inet6_udp_int(r5, 0x11, 0xa, &(0x7f0000000000)=0x4, 0x4) [ 941.121824][ T27] audit: type=1800 audit(1589682147.880:196): pid=19762 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="SYSV00000000" dev="hugetlbfs" ino=11 res=0 [ 941.134342][T19746] batman_adv: batadv0: Not using interface gretap871 (retrying later): interface not active [ 941.412619][T19784] netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. 02:22:28 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$TUNSETNOCSUM(r1, 0x400454c8, 0x1) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) openat$ipvs(0xffffffffffffff9c, &(0x7f0000000080)='/proc/sys/net/ipv4/vs/sync_ports\x00', 0x2, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000280)={@void, @val={0x3}, @mpls={[], @ipv4=@dccp={{0x1b, 0x4, 0x2, 0x17, 0x107c, 0x68, 0x0, 0x6, 0x21, 0x0, @rand_addr=0x64010102, @multicast2, {[@end, @rr={0x7, 0x1f, 0xa0, [@local, @empty, @private=0xa010102, @initdev={0xac, 0x1e, 0x1, 0x0}, @remote, @dev={0xac, 0x14, 0x14, 0x1d}, @rand_addr=0x64010102]}, @generic={0x83, 0x9, "4b289f1a796829"}, @timestamp_addr={0x44, 0x24, 0xca, 0x1, 0x8, [{@initdev={0xac, 0x1e, 0x1, 0x0}, 0x7}, {@empty, 0x1}, {@empty, 0x252}, {@remote, 0x2}]}, @ssrr={0x89, 0xb, 0xb3, [@private=0xa010102, @initdev={0xac, 0x1e, 0x1, 0x0}]}]}}, {{0x4e23, 0x4e22, 0x4, 0x1, 0x2, 0x0, 0x0, 0x0, 0x1, "009677", 0x5, "aac55f"}, "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"}}}}, 0x1086) 02:22:28 executing program 5: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) select(0x40, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0x2fe00000000007}, 0x0, 0x0, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000180)={0x0, 0x3, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000000000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) ioctl$KVM_REGISTER_COALESCED_MMIO(r1, 0x4010ae67, &(0x7f00000001c0)={0x0, 0x11c000}) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000fe7000/0x18000)=nil, &(0x7f0000000100)=[@text16={0x10, &(0x7f0000000040)="66b8050000000f23d80f21f86635000000e00f23f80f01c4f3a73f2e0ff846c266f967f3900f00170f12da0fb5810500", 0x30}], 0x1, 0x0, 0x0, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000000000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) ioctl$KVM_NMI(r2, 0xae9a) shutdown(0xffffffffffffffff, 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX3(0xffffffffffffffff, 0x84, 0x6f, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000240)}, 0x0) sendmsg$TIPC_NL_NODE_GET(0xffffffffffffffff, 0x0, 0x0) ioctl$KVM_RUN(r2, 0xae80, 0x0) 02:22:28 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00006800000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:28 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acfa, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:28 executing program 1: perf_event_open(&(0x7f00000001c0)={0x2, 0x70, 0x3e7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6_mptcp(0xa, 0x1, 0x106) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x4001, 0x0, @ipv4={[], [], @empty}}, 0x1c) [ 941.630164][T19798] batman_adv: Cannot find parent device [ 941.682816][T19798] batman_adv: batadv0: Adding interface: gretap872 02:22:28 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x1d7) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000400)=ANY=[@ANYBLOB="4800000010000507000000000000800000000000", @ANYRES32=r2, @ANYBLOB="0000000000020000280012000c00010076657468"], 0x48}}, 0x0) r3 = socket$xdp(0x2c, 0x3, 0x0) setsockopt$XDP_UMEM_FILL_RING(r3, 0x11b, 0x5, &(0x7f00000004c0)=0x80, 0x4) setsockopt$XDP_TX_RING(r3, 0x11b, 0x3, &(0x7f0000000140)=0x2, 0x4) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0}, &(0x7f0000000240)=0x14) setsockopt$XDP_UMEM_COMPLETION_RING(r3, 0x11b, 0x6, &(0x7f00000001c0)=0x400, 0x4) bind$xdp(r3, &(0x7f0000000040)={0x2c, 0x0, r4}, 0x10) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r1, &(0x7f00000003c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000080)=0x14) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x90692, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendmsg$nl_route(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000500)=@newlink={0x20, 0x11, 0x40d, 0x0, 0x0, {0x10, 0x0, 0x0, r6}}, 0x20}}, 0x0) [ 941.726481][T19798] batman_adv: batadv0: The MTU of interface gretap872 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. [ 941.864734][T19798] batman_adv: batadv0: Not using interface gretap872 (retrying later): interface not active [ 941.925137][T19784] netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. [ 941.942333][T19821] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. 02:22:28 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r1, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) getsockopt$inet_sctp_SCTP_AUTOCLOSE(r1, 0x84, 0x4, &(0x7f0000000040), &(0x7f00000000c0)=0x4) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) 02:22:28 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acfb, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:28 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00006c00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 942.341616][T19844] batman_adv: Cannot find parent device [ 942.371818][T19844] batman_adv: batadv0: Adding interface: gretap873 [ 942.393971][T19844] batman_adv: batadv0: The MTU of interface gretap873 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. [ 942.464891][T19844] batman_adv: batadv0: Not using interface gretap873 (retrying later): interface not active [ 942.512858][T19825] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. 02:22:29 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00007400000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:29 executing program 3: r0 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r0, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) ioctl$EVIOCGPROP(r0, 0x80404509, &(0x7f0000000180)=""/164) perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x3d11a}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8}]}}}]}, 0x3c}}, 0x0) 02:22:29 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acfc, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:29 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = openat$kvm(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/kvm\x00', 0x0, 0x0) r4 = ioctl$KVM_CREATE_VM(r3, 0xae01, 0x0) r5 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r5, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x0, 0x3, 0x400, {0x7, 0x3}, 0x5, 0xf0a}) ioctl$KVM_RUN(r5, 0xae80, 0x0) ioctl$KVM_CREATE_IRQCHIP(r4, 0xae60) ioctl$KVM_IRQ_LINE_STATUS(r4, 0xc008ae67, &(0x7f0000000180)={0x0, 0x8001}) ioctl$KVM_IRQ_LINE_STATUS(r4, 0xc008ae67, &(0x7f0000000180)={0x0, 0x8001}) r6 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, &(0x7f0000000080)=0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(0xffffffffffffffff, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) mmap$xdp(&(0x7f0000ffc000/0x2000)=nil, 0x2000, 0x3, 0x10, 0xffffffffffffffff, 0x180000000) ptrace$getenv(0x4201, r7, 0x80000000, &(0x7f0000000100)) ioctl$sock_inet_SIOCSIFADDR(r6, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)=ANY=[@ANYBLOB="0300008d0000000000007fda1b480100b7f90001667f0600000000000000110000e300"/50], 0x100c) 02:22:29 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x1d7) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000400)=ANY=[@ANYBLOB="4800000010000507000000000000800000000000", @ANYRES32=r2, @ANYBLOB="0000000000020000280012000c00010076657468"], 0x48}}, 0x0) r3 = socket$xdp(0x2c, 0x3, 0x0) setsockopt$XDP_UMEM_FILL_RING(r3, 0x11b, 0x5, &(0x7f00000004c0)=0x80, 0x4) setsockopt$XDP_TX_RING(r3, 0x11b, 0x3, &(0x7f0000000140)=0x2, 0x4) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0}, &(0x7f0000000240)=0x14) setsockopt$XDP_UMEM_COMPLETION_RING(r3, 0x11b, 0x6, &(0x7f00000001c0)=0x400, 0x4) bind$xdp(r3, &(0x7f0000000040)={0x2c, 0x0, r4}, 0x10) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r1, &(0x7f00000003c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000080)=0x14) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x90692, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendmsg$nl_route(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000500)=@newlink={0x20, 0x11, 0x40d, 0x0, 0x0, {0x10, 0x0, 0x0, r6}}, 0x20}}, 0x0) 02:22:29 executing program 5: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) select(0x40, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0x2fe00000000007}, 0x0, 0x0, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000180)={0x0, 0x3, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000000000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) ioctl$KVM_REGISTER_COALESCED_MMIO(r1, 0x4010ae67, &(0x7f00000001c0)={0x0, 0x11c000}) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000fe7000/0x18000)=nil, &(0x7f0000000100)=[@text16={0x10, &(0x7f0000000040)="66b8050000000f23d80f21f86635000000e00f23f80f01c4f3a73f2e0ff846c266f967f3900f00170f12da0fb5810500", 0x30}], 0x1, 0x0, 0x0, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000000000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) ioctl$KVM_NMI(r2, 0xae9a) shutdown(0xffffffffffffffff, 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX3(0xffffffffffffffff, 0x84, 0x6f, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000240)}, 0x0) sendmsg$TIPC_NL_NODE_GET(0xffffffffffffffff, 0x0, 0x0) ioctl$KVM_RUN(r2, 0xae80, 0x0) [ 942.788529][T19882] batman_adv: Cannot find parent device [ 942.811330][T19882] batman_adv: batadv0: Adding interface: gretap874 [ 942.831648][T19882] batman_adv: batadv0: The MTU of interface gretap874 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. [ 942.912980][T19882] batman_adv: batadv0: Not using interface gretap874 (retrying later): interface not active [ 942.949666][T19890] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. 02:22:29 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(0xffffffffffffffff, &(0x7f00000002c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000280)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000400)=ANY=[@ANYBLOB="480000001000050700"/18, @ANYRES32=r1, @ANYBLOB="0000000000000000280012000c000100766574680000000018000200fd0001000000000023c0306554362dddcb892ef8051404bde5bf296e3c56e200d724f7ead1ef33adfdbe08b8c5236b93b9797b4409f6e370d1515d2e1fa63259e6d4bd05772981", @ANYRES32=0x0, @ANYBLOB="a4321f217d83e16db1918b5368546fd0db6302003748121530000000000000000038cfd15e996c952d398babb8d0e0e039e278000062"], 0x5}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0xfffffffffffffdf6, &(0x7f0000000240)={&(0x7f00000000c0)=@newlink={0x28, 0x10, 0x825, 0x0, 0x0, {0x0, 0x0, 0x0, r1}, [@IFLA_PROTO_DOWN={0x8, 0xa, 0x14}]}, 0x28}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x3c, 0x10, 0x400, 0x3, 0xffffffff, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r1}]}}}]}, 0x3c}}, 0x0) r2 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r2, 0x1276, 0x0) r3 = syz_open_dev$audion(&(0x7f0000000340)='/dev/audio#\x00', 0x7b, 0x0) r4 = socket$inet(0x2, 0x4000000805, 0x0) r5 = socket$inet_sctp(0x2, 0x5, 0x84) r6 = dup3(r4, r5, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r5, 0x84, 0x64, &(0x7f0000000040)=[@in={0x2, 0x4e20, @empty}], 0x10) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r5, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r5, 0x84, 0x1d, &(0x7f000025e000)={0x2, [0x0, 0x0]}, &(0x7f0000a8a000)=0xc) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(r6, 0x84, 0x6c, &(0x7f000059aff8)={r7}, &(0x7f000034f000)=0x2059b000) getsockopt$inet_sctp_SCTP_ASSOCINFO(r3, 0x84, 0x1, &(0x7f0000000380)={r7, 0x0, 0x100, 0x100, 0x0, 0x3}, &(0x7f00000003c0)=0x14) getsockopt$EBT_SO_GET_ENTRIES(r2, 0x0, 0x81, &(0x7f0000000240)={'nat\x00', 0x0, 0x3, 0xba, [], 0x8, &(0x7f00000000c0)=[{}, {}, {}, {}, {}, {}, {}, {}], &(0x7f0000000180)=""/186}, &(0x7f0000000040)=0x78) 02:22:29 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00007a00000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:30 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acfd, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:30 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$BLKTRACETEARDOWN(r1, 0x1276, 0x0) recvmsg$kcm(r1, &(0x7f0000001980)={&(0x7f0000000180)=@pppol2tpv3in6={0x18, 0x1, {0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @remote}}}, 0x80, &(0x7f0000001840)=[{&(0x7f0000000740)=""/4096, 0x1000}, {&(0x7f0000000200)=""/35, 0x23}, {&(0x7f0000000340)=""/167, 0xa7}, {&(0x7f0000000400)=""/159, 0x9f}, {&(0x7f00000004c0)=""/237, 0xed}, {&(0x7f00000005c0)=""/174, 0xae}, {&(0x7f0000001740)=""/249, 0xf9}], 0x7, &(0x7f00000018c0)=""/161, 0xa1}, 0x140) setsockopt$SO_VM_SOCKETS_BUFFER_MAX_SIZE(r2, 0x28, 0x2, &(0x7f00000019c0)=0x3, 0x8) getsockname$packet(0xffffffffffffffff, &(0x7f00000002c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000280)=0x14) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000680)=ANY=[@ANYBLOB="480000001000050700"/18, @ANYRES32=r3, @ANYBLOB="0000000000000000280012000c000100766574680000000018000200fd0001000000000023c0306554362dddcb892ef8051404bde5bf296e3c56e200d724f7ead1ef33adfdbe08b8c5236b93b9797b4409f6e370d1515d2e1fa63259e6d4bd05772981", @ANYRES32=0x0, @ANYBLOB="e371a01c7d83e16db1918b5328546fd0db633ad73f48121530e272e1e1c5c2d65138cf6c000062440000"], 0x5}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0xfffffffffffffdf6, &(0x7f0000000240)={&(0x7f00000000c0)=@newlink={0x28, 0x10, 0x825, 0x0, 0x0, {0x0, 0x0, 0x0, r3}, [@IFLA_PROTO_DOWN={0x8, 0xa, 0x14}]}, 0x28}}, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=@ipv6_deladdr={0x54, 0x15, 0x400, 0x70bd28, 0x25dfdbfe, {0xa, 0x78, 0x1, 0xfe, r3}, [@IFA_ADDRESS={0x14, 0x1, @private2={0xfc, 0x2, [], 0x1}}, @IFA_LOCAL={0x14, 0x2, @dev={0xfe, 0x80, [], 0x3f}}, @IFA_CACHEINFO={0x14, 0x6, {0x3, 0x90, 0x7, 0x2021}}]}, 0x54}}, 0x4044080) [ 943.373869][T19924] batman_adv: Cannot find parent device [ 943.426967][T19924] batman_adv: batadv0: Adding interface: gretap875 [ 943.451971][T19924] batman_adv: batadv0: The MTU of interface gretap875 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 02:22:30 executing program 3: perf_event_open(&(0x7f00000002c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000280)='/proc/capi/capi20\x00', 0x1, 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(r1, 0xc058534f, &(0x7f0000000300)={{0xff}, 0x1, 0x3, 0x10001, {0x7, 0x3}, 0xc1, 0xffff}) setsockopt$inet_dccp_buf(r1, 0x21, 0xf, &(0x7f0000000040), 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000005c0)=ANY=[@ANYBLOB="3c0000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="00000000000000001c0012800b00010067726574617000000c00028008000100c46a82e9699c0a86822ccf489c4d8436e05a76a17a9cb8ca99b0dca966335f1c3b0453f5af8ea98808c74773acb7021365de74d3b0fd7848c5401c74f76e12d15d758934bece6f1c5322ae8f44f0efddd3f351deda0071c5a15aba34ff5792fb1d7577351e20a6a73e0a07d86f22b5cc8b", @ANYRES32=0x0, @ANYBLOB="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"], 0x3c}}, 0x0) [ 943.569034][T19924] batman_adv: batadv0: Not using interface gretap875 (retrying later): interface not active 02:22:30 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000003000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:30 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acfe, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:30 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x88002, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000040)={'syzkaller1\x00', 0x420000015001}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000140)={'syzkaller1\x00', {0x7, 0x0, @empty}}) write$tun(r2, &(0x7f0000000240)={@void, @val={0x3}, @mpls={[], @ipv4=@icmp={{0x8, 0x4, 0x0, 0x0, 0x224, 0x0, 0x0, 0x0, 0x2f, 0x0, @dev, @remote={0xac, 0x14, 0x8}}, @timestamp}}}, 0x100c) r4 = socket$inet6(0xa, 0x5, 0x0) close(r4) r5 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x145) ftruncate(r5, 0x200004) setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER(r4, 0x84, 0x7b, &(0x7f0000000100)={0x0, 0x2}, 0x8) sendfile(r4, r5, 0x0, 0x80001d00c0d0) ioctl$SG_GET_SG_TABLESIZE(r5, 0x227f, &(0x7f0000000080)) 02:22:30 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x1d7) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000400)=ANY=[@ANYBLOB="4800000010000507000000000000800000000000", @ANYRES32=r2, @ANYBLOB="0000000000020000280012000c00010076657468"], 0x48}}, 0x0) r3 = socket$xdp(0x2c, 0x3, 0x0) setsockopt$XDP_UMEM_REG(r3, 0x11b, 0x4, &(0x7f00000000c0)={&(0x7f0000000000)=""/5, 0x20000, 0x1000}, 0x18) setsockopt$XDP_UMEM_FILL_RING(r3, 0x11b, 0x5, &(0x7f00000004c0)=0x80, 0x4) setsockopt$XDP_TX_RING(r3, 0x11b, 0x3, &(0x7f0000000140)=0x2, 0x4) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0}, &(0x7f0000000240)=0x14) setsockopt$XDP_UMEM_COMPLETION_RING(r3, 0x11b, 0x6, &(0x7f00000001c0)=0x400, 0x4) bind$xdp(r3, &(0x7f0000000040)={0x2c, 0x0, r4}, 0x10) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r1, &(0x7f00000003c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000080)=0x14) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) sendmsg$nl_route(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000500)=@newlink={0x20, 0x11, 0x40d, 0x0, 0x0, {0x10, 0x0, 0x0, r6}}, 0x20}}, 0x0) [ 943.823643][T19950] batman_adv: Cannot find parent device 02:22:30 executing program 5: r0 = getpid() prctl$PR_SET_PTRACER(0x59616d61, r0) clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r1 = gettid() wait4(0x0, 0x0, 0x80000002, 0x0) vmsplice(0xffffffffffffffff, &(0x7f00000000c0)=[{0x0}, {0x0}, {0x0}, {&(0x7f0000000040)="45e9aed12f060000000000000025d8680027", 0x12}], 0x4, 0x0) ptrace$setopts(0x4206, r1, 0x0, 0x0) tkill(r1, 0x3c) ptrace$cont(0x18, r1, 0x0, 0x0) ptrace$setregs(0xd, r1, 0x0, &(0x7f0000000080)) ptrace$cont(0x7, r1, 0x0, 0x0) [ 943.959903][T19957] batman_adv: Cannot find parent device [ 944.003541][T19957] batman_adv: batadv0: Adding interface: gretap876 [ 944.048499][T19957] batman_adv: batadv0: The MTU of interface gretap876 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. [ 944.117288][T19980] ptrace attach of "/root/syz-executor.5"[19977] was attempted by "/root/syz-executor.5"[19980] [ 944.141953][T19957] batman_adv: batadv0: Not using interface gretap876 (retrying later): interface not active 02:22:30 executing program 5: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) select(0x40, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0x2fe00000000007}, 0x0, 0x0, 0x0) preadv(0xffffffffffffffff, &(0x7f0000000080)=[{&(0x7f0000000000)=""/92, 0x5c}], 0x1, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000180)={0x0, 0x3, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000000000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) ioctl$KVM_REGISTER_COALESCED_MMIO(r1, 0x4010ae67, &(0x7f00000001c0)={0x0, 0x11c000}) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000000000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) ioctl$KVM_NMI(r2, 0xae9a) ioctl$KVM_RUN(r2, 0xae80, 0x0) [ 944.159242][T19968] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. 02:22:31 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1acff, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 944.313720][T19968] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. 02:22:31 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="0000c403000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 944.518947][T20009] batman_adv: Cannot find parent device [ 944.541584][T20009] batman_adv: batadv0: Adding interface: gretap877 02:22:31 executing program 1: prctl$PR_SET_PTRACER(0x59616d61, 0xffffffffffffffff) clone(0x80000100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = gettid() wait4(0x0, 0x0, 0x80000002, 0x0) vmsplice(0xffffffffffffffff, &(0x7f0000000100)=[{&(0x7f0000000040)="0f34", 0x2}], 0x1, 0x0) ptrace$setopts(0x4206, r0, 0x0, 0x0) process_vm_writev(0x0, &(0x7f0000000080)=[{0x0}, {0x0}, {&(0x7f00000001c0)=""/1, 0x1}], 0x3, 0x0, 0x0, 0x0) tkill(r0, 0x15) write$sndseq(0xffffffffffffffff, &(0x7f00000000c0)=[{0x0, 0x0, 0x0, 0x0, @time, {}, {}, @ext={0x10a, &(0x7f0000000540)="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"}}], 0x1c) ptrace$setregs(0xd, r0, 0x0, &(0x7f0000000080)) ptrace$cont(0x7, r0, 0x0, 0x0) [ 944.568767][T20009] batman_adv: batadv0: The MTU of interface gretap877 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 944.654184][T20009] batman_adv: batadv0: Not using interface gretap877 (retrying later): interface not active [ 944.730365][ T27] audit: type=1800 audit(1589682151.551:197): pid=19965 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="bus" dev="sda1" ino=16193 res=0 02:22:31 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ad00, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 02:22:31 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000005000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) [ 944.946548][T20033] batman_adv: Cannot find parent device [ 944.980083][T20033] batman_adv: batadv0: Adding interface: gretap878 [ 945.015043][T20033] batman_adv: batadv0: The MTU of interface gretap878 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. [ 945.111571][T20033] batman_adv: batadv0: Not using interface gretap878 (retrying later): interface not active [ 945.201568][T20048] ================================================================== [ 945.209735][T20048] BUG: KCSAN: data-race in vm_area_dup / vma_interval_tree_insert [ 945.217531][T20048] [ 945.219862][T20048] write to 0xffff888121cb88f8 of 8 bytes by task 20047 on cpu 0: [ 945.227587][T20048] vma_interval_tree_insert+0x15d/0x220 [ 945.233142][T20048] __vma_adjust+0x645/0x1190 [ 945.237744][T20048] __split_vma+0x32d/0x340 [ 945.242171][T20048] split_vma+0x69/0x90 [ 945.246249][T20048] mprotect_fixup+0x404/0x530 [ 945.250945][T20048] do_mprotect_pkey+0x3da/0x640 [ 945.255855][T20048] __x64_sys_mprotect+0x4d/0x60 [ 945.260707][T20048] do_syscall_64+0xc7/0x3b0 [ 945.265300][T20048] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 945.271190][T20048] [ 945.273524][T20048] read to 0xffff888121cb8898 of 200 bytes by task 20048 on cpu 1: [ 945.281335][T20048] vm_area_dup+0x71/0x110 [ 945.285679][T20048] __split_vma+0x83/0x340 [ 945.290110][T20048] split_vma+0x69/0x90 [ 945.294182][T20048] mprotect_fixup+0x45d/0x530 02:22:32 executing program 4: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c00000010000104000000b235000000000000b1", @ANYRES32=r1, @ANYBLOB="00000006000000003c001280110001006272696467655f736c61766500000000240005"], 0x5c}}, 0x0) 02:22:32 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x44, 0x10, 0x401, 0x0, 0x1ad01, {}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 945.298859][T20048] do_mprotect_pkey+0x3da/0x640 [ 945.303719][T20048] __x64_sys_mprotect+0x4d/0x60 [ 945.308583][T20048] do_syscall_64+0xc7/0x3b0 [ 945.313095][T20048] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 945.318977][T20048] [ 945.321299][T20048] Reported by Kernel Concurrency Sanitizer on: [ 945.327554][T20048] CPU: 1 PID: 20048 Comm: modprobe Not tainted 5.7.0-rc1-syzkaller #0 [ 945.335702][T20048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 945.345903][T20048] ================================================================== [ 945.353975][T20048] Kernel panic - not syncing: panic_on_warn set ... [ 945.360605][T20048] CPU: 1 PID: 20048 Comm: modprobe Not tainted 5.7.0-rc1-syzkaller #0 [ 945.368753][T20048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 945.379414][T20048] Call Trace: [ 945.383079][T20048] dump_stack+0x11d/0x187 [ 945.387438][T20048] panic+0x210/0x640 [ 945.391794][T20048] ? vprintk_func+0x89/0x13a [ 945.396403][T20048] kcsan_report.cold+0xc/0x1a [ 945.401223][T20048] kcsan_setup_watchpoint+0x3fb/0x440 [ 945.404432][T20053] batman_adv: Cannot find parent device [ 945.406612][T20048] vm_area_dup+0x71/0x110 [ 945.406642][T20048] __split_vma+0x83/0x340 [ 945.421093][T20048] split_vma+0x69/0x90 [ 945.425584][T20048] mprotect_fixup+0x45d/0x530 [ 945.430905][T20048] do_mprotect_pkey+0x3da/0x640 [ 945.437419][T20048] __x64_sys_mprotect+0x4d/0x60 [ 945.442808][T20048] do_syscall_64+0xc7/0x3b0 [ 945.443397][T20053] batman_adv: batadv0: Adding interface: gretap879 [ 945.447625][T20048] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 945.447648][T20048] RIP: 0033:0x7fd2249053a7 [ 945.465493][T20048] Code: ff 66 90 b8 0b 00 00 00 0f 05 48 3d 01 f0 ff ff 73 01 c3 48 8d 0d 89 bd 20 00 f7 d8 89 01 48 83 c8 ff c3 b8 0a 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8d 0d 69 bd 20 00 f7 d8 89 01 48 83 [ 945.483281][T20053] batman_adv: batadv0: The MTU of interface gretap879 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. [ 945.485098][T20048] RSP: 002b:00007ffe736e1bf8 EFLAGS: 00000206 ORIG_RAX: 000000000000000a [ 945.485116][T20048] RAX: ffffffffffffffda RBX: 00007fd224b09000 RCX: 00007fd2249053a7 [ 945.485139][T20048] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 00007fd2246e2000 [ 945.535251][T20048] RBP: 00007ffe736e1f30 R08: 0000000000000000 R09: 0000000000000000 [ 945.543671][T20048] R10: 00007ffe736e1c00 R11: 0000000000000206 R12: 00007ffe736e2018 [ 945.551655][T20048] R13: 0000000000000002 R14: 0000000000000801 R15: 00007ffe736e1fd0 [ 945.561437][T20048] Kernel Offset: disabled [ 945.566026][T20048] Rebooting in 86400 seconds..