LE(r5, 0x8912, 0x400200) r6 = socket$inet6_tcp(0xa, 0x1, 0x0) r7 = fcntl$dupfd(r6, 0x0, r6) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x20000400202) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000004c0)={r7, 0x0, 0xec, 0x90, &(0x7f00000006c0)="04ae3ca982e4a61d0d7d4a7f3e8d27f946c0faf6567df3cba523c5540eed72d28343af12ce332d4fdd5d6e635b0615896a4b09530f42f6a52a099424f2d3204bdcec84a56e8bf2192012b88a8342ae9e91cb3c8f06ba7c914ad000a2f83efecba41b5f2185fd80f3f3634772da8e1e1c69461bfc458320c9e38ea203cbddaf70ffe2d25e838f5623d0155c3f1e12fe044d05654d2d7b9afdea53995f177abf064b94473088e2755f66fe1b2a849ac8d36ace0e97b38fec35cf0fd685c6376868a20fff5bc21ae2e67957e4dda159231504b71ade10a895d065cd8fe01eb979da3ce129b13d138000a9514711", &(0x7f00000007c0)=""/144, 0xaa18, 0x0, 0x14e, 0x2c, &(0x7f0000000280)="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", &(0x7f00000000c0)="6188505e4b26617bea907585b065c7b8d5c2883a75dd38773533cba48f1503940d074f84deb5d3f2fcb3e4b3"}, 0x40) setsockopt$netlink_NETLINK_DROP_MEMBERSHIP(r5, 0x10e, 0x2, &(0x7f00000005c0)=0x12, 0x4) r8 = inotify_init() ioctl$INOTIFY_IOC_SETNEXTWD(r8, 0x40044900, 0x4) [ 2093.991120][T23543] batman_adv: batadv0: The MTU of interface macvtap680 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2094.180936][T23543] batman_adv: batadv0: Not using interface macvtap680 (retrying later): interface not active 22:43:10 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r1 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:10 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x9000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:10 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x1c41, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) r2 = accept$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x0, @private0}, &(0x7f0000000080)=0x1c) setsockopt$inet_sctp6_SCTP_INITMSG(r2, 0x84, 0x2, &(0x7f00000000c0)={0x0, 0x2, 0xfff7, 0x1f}, 0x8) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:10 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xcdc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:11 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r1 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2094.804261][T23577] batman_adv: batadv0: Adding interface: macvtap681 [ 2094.871997][T23577] batman_adv: batadv0: The MTU of interface macvtap681 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:11 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) socket$inet_sctp(0x2, 0x5, 0x84) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:11 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:11 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2094.984092][T23577] batman_adv: batadv0: Not using interface macvtap681 (retrying later): interface not active 22:43:11 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="e70052166410"}) 22:43:11 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xcec10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:11 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x10000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:11 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) r4 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') preadv(r4, &(0x7f00000017c0), 0x1d0, 0x0) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r4, 0x84, 0x0, &(0x7f0000000000)={r5, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r5, 0x6, 0x7}, 0x0) setsockopt$inet_sctp6_SCTP_MAXSEG(r3, 0x84, 0xd, &(0x7f0000000040)=@assoc_value={r5, 0x1}, 0x8) [ 2095.518529][T23602] batman_adv: batadv0: Adding interface: macvtap682 [ 2095.583241][T23602] batman_adv: batadv0: The MTU of interface macvtap682 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2095.764016][T23602] batman_adv: batadv0: Not using interface macvtap682 (retrying later): interface not active 22:43:12 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x64000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:12 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:12 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:12 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') preadv(r3, &(0x7f00000017c0), 0x1d0, 0x0) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r3, 0x84, 0x0, &(0x7f0000000000)={r4, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r4, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_ADD_STREAMS(r2, 0x84, 0x79, &(0x7f0000000100)={r4, 0x46, 0x8000}, 0x8) r5 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$inet6_tcp(0xa, 0x1, 0x0) r7 = fcntl$dupfd(r6, 0x0, r6) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x400200) r8 = openat(r7, &(0x7f0000000040)='./file0\x00', 0x40000, 0x88) ioctl$DRM_IOCTL_RES_CTX(r8, 0xc0106426, &(0x7f00000000c0)={0x6, &(0x7f0000000080)=[{}, {}, {}, {}, {}, {}]}) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:12 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, 0x0) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2096.003743][T23618] batman_adv: batadv0: Adding interface: macvtap683 [ 2096.063683][T23618] batman_adv: batadv0: The MTU of interface macvtap683 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2096.224707][T23618] batman_adv: batadv0: Not using interface macvtap683 (retrying later): interface not active 22:43:12 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xcfc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:12 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) getsockopt$PNPIPE_ENCAP(0xffffffffffffffff, 0x113, 0x1, &(0x7f0000000040), &(0x7f0000000080)=0x4) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) recvfrom$inet(r3, &(0x7f00000000c0)=""/191, 0xbf, 0x40, &(0x7f0000000180)={0x2, 0x4e22, @multicast1}, 0x10) r4 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f00000001c0)='/dev/ubi_ctrl\x00', 0x509880, 0x0) signalfd(r4, &(0x7f0000000200)={[0x5]}, 0x8) [ 2096.511522][T23641] batman_adv: batadv0: Adding interface: macvtap684 [ 2096.526115][T23641] batman_adv: batadv0: The MTU of interface macvtap684 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2096.560009][T23641] batman_adv: batadv0: Not using interface macvtap684 (retrying later): interface not active 22:43:13 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) write$P9_RFSYNC(r3, &(0x7f0000000040)={0x7, 0x33, 0x2}, 0x7) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2096.768580][T23647] batman_adv: batadv0: Adding interface: macvtap685 22:43:13 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0xc3070000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2096.826104][T23647] batman_adv: batadv0: The MTU of interface macvtap685 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:13 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:13 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2096.989233][T23647] batman_adv: batadv0: Not using interface macvtap685 (retrying later): interface not active 22:43:13 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'wg2\x00'}) 22:43:13 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xd0c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:13 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) getsockopt$inet6_int(r2, 0x29, 0x13, &(0x7f0000000040), &(0x7f0000000080)=0x4) r3 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) r5 = fcntl$dupfd(r4, 0x0, r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) ioctl$RTC_UIE_ON(r5, 0x7003) [ 2097.458240][T23674] batman_adv: batadv0: Adding interface: macvtap686 [ 2097.515309][T23674] batman_adv: batadv0: The MTU of interface macvtap686 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2097.592755][T23674] batman_adv: batadv0: Not using interface macvtap686 (retrying later): interface not active 22:43:14 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x1000000000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:14 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, 0x0) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:14 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2097.847996][T23683] batman_adv: batadv0: Adding interface: macvtap687 [ 2097.864178][T23683] batman_adv: batadv0: The MTU of interface macvtap687 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:14 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2098.033737][T23683] batman_adv: batadv0: Not using interface macvtap687 (retrying later): interface not active 22:43:14 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xd1c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:14 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x40000000000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:14 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) r2 = gettid() tkill(r2, 0x1000000000013) pidfd_open(r2, 0x0) [ 2098.676963][T23711] batman_adv: batadv0: Adding interface: macvtap688 [ 2098.740434][T23711] batman_adv: batadv0: The MTU of interface macvtap688 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:15 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, 0x0) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:15 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:15 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2098.885174][T23711] batman_adv: batadv0: Not using interface macvtap688 (retrying later): interface not active [ 2099.075455][T23725] batman_adv: batadv0: Adding interface: macvtap689 [ 2099.114114][T23725] batman_adv: batadv0: The MTU of interface macvtap689 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2099.336501][T23725] batman_adv: batadv0: Not using interface macvtap689 (retrying later): interface not active 22:43:15 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x300000000000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:15 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xd2030000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:16 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:16 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, 0x0, &(0x7f0000000040)) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={0x0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:16 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2099.789392][T23739] batman_adv: batadv0: Adding interface: macvtap690 [ 2099.847031][T23739] batman_adv: batadv0: The MTU of interface macvtap690 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2100.036950][T23739] batman_adv: batadv0: Not using interface macvtap690 (retrying later): interface not active 22:43:16 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x800000000000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2100.273992][T23756] batman_adv: batadv0: Adding interface: macvtap691 [ 2100.310902][T23756] batman_adv: batadv0: The MTU of interface macvtap691 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2100.355241][T23756] batman_adv: batadv0: Not using interface macvtap691 (retrying later): interface not active 22:43:16 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xd2c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:17 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2100.768203][T23765] batman_adv: batadv0: Adding interface: macvtap692 [ 2100.811659][T23765] batman_adv: batadv0: The MTU of interface macvtap692 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2100.919007][T23765] batman_adv: batadv0: Not using interface macvtap692 (retrying later): interface not active [ 2101.050893][T23772] batman_adv: batadv0: Adding interface: macvtap693 [ 2101.069563][T23772] batman_adv: batadv0: The MTU of interface macvtap693 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2101.140650][T23772] batman_adv: batadv0: Not using interface macvtap693 (retrying later): interface not active 22:43:17 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r2, 0x4018620d, &(0x7f0000000040)={0x73622a85, 0xa, 0x1}) r3 = socket$kcm(0x2b, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:17 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, 0x0, &(0x7f0000000040)) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={0x0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:17 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:17 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x900000000000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:17 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xd3c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:17 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2101.651233][T23790] batman_adv: batadv0: Adding interface: macvtap694 [ 2101.702718][T23790] batman_adv: batadv0: The MTU of interface macvtap694 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2101.900439][T23790] batman_adv: batadv0: Not using interface macvtap694 (retrying later): interface not active [ 2102.174142][T23803] batman_adv: batadv0: Adding interface: macvtap695 [ 2102.219515][T23803] batman_adv: batadv0: The MTU of interface macvtap695 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:18 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:18 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, 0x0, &(0x7f0000000040)) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={0x0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:18 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2102.377037][T23803] batman_adv: batadv0: Not using interface macvtap695 (retrying later): interface not active 22:43:18 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x1000000000000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:18 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xd4c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:19 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2102.891521][T23824] batman_adv: batadv0: Adding interface: macvtap696 [ 2102.945766][T23824] batman_adv: batadv0: The MTU of interface macvtap696 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2103.080930][T23824] batman_adv: batadv0: Not using interface macvtap696 (retrying later): interface not active 22:43:19 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x6400000000000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:19 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:19 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:19 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x240040, 0x0) close(r0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) symlinkat(&(0x7f0000000040)='./file0\x00', r2, &(0x7f0000000080)='./file0/file0\x00') r3 = socket$kcm(0x2b, 0x1, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_int(r4, 0x29, 0x1, &(0x7f00000001c0), 0x4) r5 = fcntl$dupfd(r4, 0x0, r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) fallocate(r0, 0x46, 0x5, 0x0) getsockopt$inet_IP_XFRM_POLICY(0xffffffffffffffff, 0x0, 0x11, &(0x7f00000000c0)={{{@in=@dev, @in6=@mcast1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@mcast1}, 0x0, @in6}}, &(0x7f0000000380)=0xe8) dup2(0xffffffffffffffff, 0xffffffffffffffff) getsockopt$inet_IP_IPSEC_POLICY(0xffffffffffffffff, 0x0, 0x10, &(0x7f0000000240)={{{@in6=@local, @in=@multicast2}}, {{@in6=@initdev}, 0x0, @in6=@remote}}, &(0x7f0000000000)=0xe8) socket$nl_route(0x10, 0x3, 0x0) chown(&(0x7f0000000340)='./file0/file0\x00', r6, 0x0) ioctl$TUNSETOWNER(r5, 0x400454cc, r6) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'bond_slave_0\x00', @remote}) 22:43:19 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2103.322351][T23836] batman_adv: batadv0: Adding interface: macvtap697 [ 2103.381778][T23836] batman_adv: batadv0: The MTU of interface macvtap697 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2103.532294][T23836] batman_adv: batadv0: Not using interface macvtap697 (retrying later): interface not active 22:43:19 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xd5c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:20 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2103.831248][T23860] batman_adv: batadv0: Adding interface: macvtap698 [ 2103.883827][T23860] batman_adv: batadv0: The MTU of interface macvtap698 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2104.077717][T23860] batman_adv: batadv0: Not using interface macvtap698 (retrying later): interface not active 22:43:20 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0xc307000000000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:20 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:20 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2104.318098][T23869] batman_adv: batadv0: Adding interface: macvtap699 [ 2104.352510][T23869] batman_adv: batadv0: The MTU of interface macvtap699 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2104.517651][T23869] batman_adv: batadv0: Not using interface macvtap699 (retrying later): interface not active 22:43:21 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xd6c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:21 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2105.011176][T23888] batman_adv: batadv0: Adding interface: macvtap700 [ 2105.039862][T23888] batman_adv: batadv0: The MTU of interface macvtap700 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:21 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2105.236390][T23888] batman_adv: batadv0: Not using interface macvtap700 (retrying later): interface not active 22:43:21 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:21 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0xffffffff00000000, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2105.399888][T23899] batman_adv: batadv0: Adding interface: macvtap701 [ 2105.419861][T23899] batman_adv: batadv0: The MTU of interface macvtap701 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:21 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2105.607605][T23899] batman_adv: batadv0: Not using interface macvtap701 (retrying later): interface not active 22:43:22 executing program 3: perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:22 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xd7c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:22 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2106.033610][T23918] batman_adv: batadv0: Adding interface: macvtap702 22:43:22 executing program 3: perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2106.076730][T23918] batman_adv: batadv0: The MTU of interface macvtap702 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2106.243400][T23918] batman_adv: batadv0: Not using interface macvtap702 (retrying later): interface not active 22:43:22 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:22 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:22 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2106.444597][T23930] batman_adv: batadv0: Adding interface: macvtap703 [ 2106.494727][T23930] batman_adv: batadv0: The MTU of interface macvtap703 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2106.665745][T23930] batman_adv: batadv0: Not using interface macvtap703 (retrying later): interface not active 22:43:23 executing program 3: perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:23 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xd8c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2106.938368][T23950] batman_adv: batadv0: Adding interface: macvtap704 [ 2106.998150][T23950] batman_adv: batadv0: The MTU of interface macvtap704 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2107.152603][T23950] batman_adv: batadv0: Not using interface macvtap704 (retrying later): interface not active 22:43:23 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:23 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:23 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2107.413708][T23957] batman_adv: batadv0: Adding interface: macvtap705 22:43:23 executing program 3: perf_event_open(&(0x7f000001d000)={0x0, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2107.447731][T23957] batman_adv: batadv0: The MTU of interface macvtap705 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2107.609178][T23957] batman_adv: batadv0: Not using interface macvtap705 (retrying later): interface not active 22:43:24 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xd9c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2107.937989][T23978] batman_adv: batadv0: Adding interface: macvtap706 [ 2107.965807][T23978] batman_adv: batadv0: The MTU of interface macvtap706 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2108.063563][T23978] batman_adv: batadv0: Not using interface macvtap706 (retrying later): interface not active 22:43:24 executing program 3: perf_event_open(&(0x7f000001d000)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2108.319277][T23983] batman_adv: batadv0: Adding interface: macvtap707 22:43:24 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:24 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2108.371737][T23983] batman_adv: batadv0: The MTU of interface macvtap707 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2108.496292][T23983] batman_adv: batadv0: Not using interface macvtap707 (retrying later): interface not active 22:43:25 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xdac10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:25 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x9, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2108.844603][T24002] batman_adv: batadv0: Adding interface: macvtap708 [ 2108.868956][T24002] batman_adv: batadv0: The MTU of interface macvtap708 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2109.030127][T24002] batman_adv: batadv0: Not using interface macvtap708 (retrying later): interface not active 22:43:25 executing program 3: perf_event_open(&(0x7f000001d000)={0x0, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:25 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:25 executing program 5: perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2109.337884][T24012] batman_adv: batadv0: Adding interface: macvtap709 22:43:25 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, 0x0, 0x0) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2109.389140][T24012] batman_adv: batadv0: The MTU of interface macvtap709 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:25 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2109.586504][T24012] batman_adv: batadv0: Not using interface macvtap709 (retrying later): interface not active 22:43:26 executing program 5: perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:26 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xdbc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2110.002729][T24038] batman_adv: batadv0: Adding interface: macvtap710 22:43:26 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2110.043209][T24038] batman_adv: batadv0: The MTU of interface macvtap710 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:26 executing program 5: perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2110.211036][T24038] batman_adv: batadv0: Not using interface macvtap710 (retrying later): interface not active 22:43:26 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x64, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2110.387944][T24050] batman_adv: batadv0: Adding interface: macvtap711 22:43:26 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, 0x0, 0x0) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2110.419598][T24050] batman_adv: batadv0: The MTU of interface macvtap711 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2110.550344][T24050] batman_adv: batadv0: Not using interface macvtap711 (retrying later): interface not active 22:43:27 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xdcc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:27 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:27 executing program 5: perf_event_open(&(0x7f000001d000)={0x0, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2110.990979][T24069] batman_adv: batadv0: Adding interface: macvtap712 [ 2111.041507][T24069] batman_adv: batadv0: The MTU of interface macvtap712 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:27 executing program 5: perf_event_open(&(0x7f000001d000)={0x0, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2111.197620][T24069] batman_adv: batadv0: Not using interface macvtap712 (retrying later): interface not active 22:43:27 executing program 3: 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) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:27 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x300, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2111.359828][T24077] batman_adv: batadv0: Adding interface: macvtap713 22:43:27 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, 0x0, 0x0) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2111.409911][T24077] batman_adv: batadv0: The MTU of interface macvtap713 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:28 executing program 3: 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) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2111.596574][T24077] batman_adv: batadv0: Not using interface macvtap713 (retrying later): interface not active 22:43:28 executing program 5: perf_event_open(&(0x7f000001d000)={0x0, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:28 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xddc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2112.056850][T24103] batman_adv: batadv0: Adding interface: macvtap714 22:43:28 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2112.112960][T24103] batman_adv: batadv0: The MTU of interface macvtap714 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:28 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2112.265411][T24103] batman_adv: batadv0: Not using interface macvtap714 (retrying later): interface not active 22:43:28 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x7c3, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:28 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:28 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xde000000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2112.730359][T24125] batman_adv: batadv0: Adding interface: macvtap715 [ 2112.750563][T24125] batman_adv: batadv0: The MTU of interface macvtap715 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2112.874496][T24125] batman_adv: batadv0: Not using interface macvtap715 (retrying later): interface not active 22:43:29 executing program 3: 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, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2113.060696][T24131] batman_adv: batadv0: Adding interface: macvtap716 [ 2113.094190][T24131] batman_adv: batadv0: The MTU of interface macvtap716 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:29 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2113.267903][T24131] batman_adv: batadv0: Not using interface macvtap716 (retrying later): interface not active 22:43:29 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xdec10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:29 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x900, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:29 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2113.579670][T24145] batman_adv: batadv0: Adding interface: macvtap717 [ 2113.610348][T24145] batman_adv: batadv0: The MTU of interface macvtap717 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2113.818590][T24145] batman_adv: batadv0: Not using interface macvtap717 (retrying later): interface not active 22:43:30 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:30 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:30 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xdfc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2114.238570][T24162] batman_adv: batadv0: Adding interface: macvtap718 [ 2114.301305][T24162] batman_adv: batadv0: The MTU of interface macvtap718 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:30 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2114.466174][T24162] batman_adv: batadv0: Not using interface macvtap718 (retrying later): interface not active 22:43:30 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:30 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x4000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:31 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe0030000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:31 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2114.893760][T24181] batman_adv: batadv0: Adding interface: macvtap719 [ 2114.937049][T24181] batman_adv: batadv0: The MTU of interface macvtap719 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2115.118294][T24181] batman_adv: batadv0: Not using interface macvtap719 (retrying later): interface not active 22:43:31 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x6400, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:31 executing program 5: 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) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:31 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe0c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:31 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:31 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x0, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2115.542135][T24202] batman_adv: batadv0: Adding interface: macvtap720 22:43:32 executing program 5: 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) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2115.606010][T24202] batman_adv: batadv0: The MTU of interface macvtap720 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:32 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x0, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2115.719685][T24202] batman_adv: batadv0: Not using interface macvtap720 (retrying later): interface not active [ 2115.870294][T24219] batman_adv: batadv0: Adding interface: macvtap721 [ 2115.906532][T24219] batman_adv: batadv0: The MTU of interface macvtap721 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:32 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x0, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:32 executing program 5: 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, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2116.051527][T24219] batman_adv: batadv0: Not using interface macvtap721 (retrying later): interface not active 22:43:32 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0xc307, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:32 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe1c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:32 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$inet(0x2, 0x2, 0x0) r0 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r0, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:32 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2116.403118][T24242] batman_adv: batadv0: Adding interface: macvtap722 22:43:32 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:32 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$inet(0x2, 0x2, 0x0) r0 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r0, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2116.446126][T24242] batman_adv: batadv0: The MTU of interface macvtap722 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2116.562752][T24242] batman_adv: batadv0: Not using interface macvtap722 (retrying later): interface not active 22:43:33 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$inet(0x2, 0x2, 0x0) r0 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r0, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2116.802790][T24259] batman_adv: batadv0: Adding interface: macvtap723 22:43:33 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2116.840401][T24259] batman_adv: batadv0: The MTU of interface macvtap723 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:33 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:33 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2116.997034][T24259] batman_adv: batadv0: Not using interface macvtap723 (retrying later): interface not active 22:43:33 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe2c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:33 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x400000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:33 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:33 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2117.427503][T24277] batman_adv: batadv0: Adding interface: macvtap724 [ 2117.468499][T24277] batman_adv: batadv0: The MTU of interface macvtap724 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:33 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x0, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:33 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2117.641374][T24277] batman_adv: batadv0: Not using interface macvtap724 (retrying later): interface not active 22:43:34 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:34 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe3c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:34 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x0, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:34 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2118.084996][T24302] batman_adv: batadv0: Adding interface: macvtap725 22:43:34 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x0, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:34 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, 0x0, 0x0) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2118.117976][T24302] batman_adv: batadv0: The MTU of interface macvtap725 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2118.220320][T24302] batman_adv: batadv0: Not using interface macvtap725 (retrying later): interface not active 22:43:34 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x3000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:34 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$inet(0x2, 0x2, 0x0) r0 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r0, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:34 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, 0x0, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:34 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, 0x0, 0x0) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:34 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe4c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:34 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, 0x0, 0x0) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:35 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$inet(0x2, 0x2, 0x0) r0 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r0, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2118.687229][T24334] batman_adv: batadv0: Adding interface: macvtap726 22:43:35 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0) [ 2118.733580][T24334] batman_adv: batadv0: The MTU of interface macvtap726 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:35 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$inet(0x2, 0x2, 0x0) r0 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r0, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2118.872437][T24334] batman_adv: batadv0: Not using interface macvtap726 (retrying later): interface not active 22:43:35 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:35 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe4ffffff, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:35 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:35 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x8000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2119.338743][T24353] batman_adv: batadv0: Adding interface: macvtap727 22:43:35 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, 0x0, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2119.397460][T24353] batman_adv: batadv0: The MTU of interface macvtap727 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2119.553167][T24353] batman_adv: batadv0: Not using interface macvtap727 (retrying later): interface not active 22:43:36 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:36 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0) 22:43:36 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2119.788790][T24371] batman_adv: batadv0: Adding interface: macvtap728 [ 2119.805267][T24371] batman_adv: batadv0: The MTU of interface macvtap728 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:36 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2119.937526][T24371] batman_adv: batadv0: Not using interface macvtap728 (retrying later): interface not active 22:43:36 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe5c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:36 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:36 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, 0x0, 0x0) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:36 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, 0x0, 0x0) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:36 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, 0x0, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:36 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x9000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2120.441738][T24388] batman_adv: batadv0: Adding interface: macvtap729 [ 2120.473187][T24388] batman_adv: batadv0: The MTU of interface macvtap729 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:37 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0) [ 2120.626104][T24388] batman_adv: batadv0: Not using interface macvtap729 (retrying later): interface not active 22:43:37 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, 0x0, 0x0) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:37 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe6c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:37 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0) [ 2121.035472][T24415] batman_adv: batadv0: Adding interface: macvtap730 22:43:37 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={0x0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2121.091161][T24415] batman_adv: batadv0: The MTU of interface macvtap730 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2121.229662][T24415] batman_adv: batadv0: Not using interface macvtap730 (retrying later): interface not active 22:43:37 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x10000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:37 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe7c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:37 executing program 1: close(0xffffffffffffffff) r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = fcntl$dupfd(r3, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) r5 = socket$inet6_tcp(0xa, 0x1, 0x0) r6 = fcntl$dupfd(r5, 0x0, r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) ioctl$DRM_IOCTL_PRIME_HANDLE_TO_FD(r4, 0xc00c642d, &(0x7f0000000040)={0x0, 0x0, r6}) ioctl$DRM_IOCTL_GEM_CLOSE(r2, 0x40086409, &(0x7f0000000080)={r7}) ioctl$SIOCSIFHWADDR(0xffffffffffffffff, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) get_thread_area(&(0x7f0000000000)={0xd51, 0x20000000, 0x0, 0x0, 0x2, 0x0, 0x1, 0x1, 0x1}) [ 2121.683828][T24436] batman_adv: batadv0: Adding interface: macvtap731 22:43:38 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$inet(0x2, 0x2, 0x0) r0 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r0, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2121.714717][T24436] batman_adv: batadv0: The MTU of interface macvtap731 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:38 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0) [ 2121.826947][T24436] batman_adv: batadv0: Not using interface macvtap731 (retrying later): interface not active 22:43:38 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, 0x0, 0x0) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:38 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) capget(&(0x7f0000000040)={0x20071026, 0xffffffffffffffff}, &(0x7f0000000080)={0x2, 0x0, 0x6, 0x52b, 0x3, 0x5}) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) r5 = fcntl$dupfd(r4, 0x0, r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) getsockopt$inet6_IPV6_XFRM_POLICY(0xffffffffffffffff, 0x29, 0x23, &(0x7f0000000100)={{{@in=@dev, @in=@multicast2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@loopback}, 0x0, @in6=@mcast2}}, &(0x7f0000000200)=0xe8) sendmsg$xdp(r3, &(0x7f0000000580)={&(0x7f0000000280)={0x2c, 0xb, r6, 0x28}, 0x10, &(0x7f0000000540)=[{&(0x7f00000002c0)="a9ac6197e3e323dcc2eb55ae674c666544e3b4b0fcd702c708cd6b94f34862a8a47eb3bbe34b0c527805274725c59f5a5a0371b887ffe891d9a0eca0834747ed7dd5745231ac3a22ff51a9d0997416cd2da0a32adf2e16799b5311c85bfbcfc84e4a471d3ff15dac22a32f6154e701cfb847c1db62a5deceeb07353d821fb7d086e69020427aa29b628478445fce578fbca447fac4378a249305973ad5ceb7b997c5b9f673d9afe56769ffee69cf", 0xae}, {&(0x7f0000000380)="7b00ba45125b49bf2b5f80e09fe71e9eb76e5d52594a4b6877d7e6675466fe4772db1436e0cae05ce2968d476385d3a340cc4df1e328e130e70025d690fb83d38c4271ba4d5dca1484f33d48fe8cb9f6d138e30c3b675d364aaf582a822dab127115fb", 0x63}, {&(0x7f0000000400)="44bf6f83d30ec7450adaa078f55cde0d32158326107683b49c43a85ec60cbf21320b2de866c9d64d9b215302205899f601a2cfa55a7b69ad97dc9d3cc8bd21781fd46ed0633b0e10583601b666fe4b5db53e0bed14c1ca357aa78737d049f5", 0x5f}, {&(0x7f0000000480)="e6573ae3c3d1b9954462fe1e3a99640690b09447c67244f6956bdc66cfe01b09d5e17df107df0a976baa60e495a6e4fa80868564f3d73164845d22cba43a43ca2a7758e5f81f1b8a011118c3b724b49f78db3b34e5ce68cd87fa3f5664d3eef96c87796fb28b36f8556e1a8be627fb987ccc2f2f5bd06072bb48c7b421e7a2292030bc3208def158a8435f5c717d7c14e7dc13571784181c7282dc44c0ee8c0c279b942787af", 0xa6}], 0x4, 0x0, 0x0, 0x4c000}, 0x54) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2122.019254][T24450] batman_adv: batadv0: Adding interface: macvtap732 [ 2122.063669][T24450] batman_adv: batadv0: The MTU of interface macvtap732 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:38 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2122.115117][T24450] batman_adv: batadv0: Not using interface macvtap732 (retrying later): interface not active [ 2122.128872][T24458] capability: warning: `syz-executor.1' uses deprecated v2 capabilities in a way that may be insecure 22:43:38 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe8c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:38 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={0x0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2122.397920][T24462] batman_adv: batadv0: Adding interface: macvtap733 [ 2122.446980][T24462] batman_adv: batadv0: The MTU of interface macvtap733 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:38 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$inet(0x2, 0x2, 0x0) r0 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r0, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2122.621485][T24462] batman_adv: batadv0: Not using interface macvtap733 (retrying later): interface not active 22:43:39 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x64000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:39 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000040)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) openat$btrfs_control(0xffffffffffffff9c, &(0x7f0000000000)='/dev/btrfs-control\x00', 0x0, 0x0) syz_open_dev$vcsn(&(0x7f0000000140)='/dev/vcs#\x00', 0x5, 0x20000) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_IP_XFRM_POLICY(0xffffffffffffffff, 0x0, 0x11, &(0x7f0000000280)={{{@in=@dev, @in6=@mcast1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@mcast1}, 0x0, @in6}}, &(0x7f0000000380)=0xe8) chown(&(0x7f0000000240)='./file0\x00', r4, 0xee01) r5 = dup2(0xffffffffffffffff, 0xffffffffffffffff) getsockopt$inet_IP_IPSEC_POLICY(0xffffffffffffffff, 0x0, 0x10, &(0x7f0000000240)={{{@in6=@local, @in=@multicast2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@initdev}, 0x0, @in6=@remote}}, &(0x7f0000000000)=0xe8) r7 = socket$nl_route(0x10, 0x3, 0x0) getsockopt$sock_cred(r7, 0x1, 0x11, &(0x7f0000000040)={0x0, 0x0, 0x0}, &(0x7f0000000080)=0xc) setresgid(r8, 0x0, 0x0) write$P9_RGETATTR(r5, &(0x7f0000000340)={0xa0, 0x19, 0x1, {0x400, {0x2, 0x0, 0x1}, 0x88, r6, r8, 0x1, 0x3, 0xf0b, 0x400, 0x100, 0x0, 0x11000000, 0x92b, 0x0, 0x1, 0xfb, 0x4, 0x42c4, 0x2, 0x3f}}, 0xa0) mount$fuseblk(&(0x7f0000000180)='/dev/loop0\x00', &(0x7f00000001c0)='./file0\x00', &(0x7f0000000200)='fuseblk\x00', 0x81000, &(0x7f0000000240)={{'fd'}, 0x2c, {'rootmode', 0x3d, 0x6000}, 0x2c, {'user_id', 0x3d, r4}, 0x2c, {'group_id', 0x3d, r8}, 0x2c, {[{@allow_other='allow_other'}, {@blksize={'blksize', 0x3d, 0x200}}, {@default_permissions='default_permissions'}, {@max_read={'max_read', 0x3d, 0x3}}, {@allow_other='allow_other'}], [{@fsmagic={'fsmagic', 0x3d, 0x5}}, {@defcontext={'defcontext', 0x3d, 'unconfined_u'}}, {@subj_role={'subj_role', 0x3d, '/dev/net/tun\x00'}}, {@subj_user={'subj_user', 0x3d, '$'}}, {@smackfshat={'smackfshat', 0x3d, 'vmnet1!system'}}, {@obj_role={'obj_role', 0x3d, '/dev/net/tun\x00'}}]}}) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$FBIOGET_VSCREENINFO(r3, 0x4600, &(0x7f0000000080)) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) 22:43:39 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0) [ 2122.901895][T24475] batman_adv: batadv0: Adding interface: macvtap734 22:43:39 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2122.945012][T24475] batman_adv: batadv0: The MTU of interface macvtap734 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2123.093061][T24475] batman_adv: batadv0: Not using interface macvtap734 (retrying later): interface not active 22:43:39 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xe9c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:39 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @dev={[], 0x27}}) 22:43:39 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={0x0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:39 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0xc3070000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2123.581125][T24498] batman_adv: batadv0: Adding interface: macvtap735 [ 2123.615391][T24498] batman_adv: batadv0: The MTU of interface macvtap735 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:40 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0) [ 2123.804908][T24498] batman_adv: batadv0: Not using interface macvtap735 (retrying later): interface not active 22:43:40 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE(r3, 0xc0045520, &(0x7f0000000040)) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:40 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x1000000000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2123.995207][T24518] batman_adv: batadv0: Adding interface: macvtap736 22:43:40 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2124.034031][T24518] batman_adv: batadv0: The MTU of interface macvtap736 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2124.179683][T24518] batman_adv: batadv0: Not using interface macvtap736 (retrying later): interface not active 22:43:40 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xea030000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:40 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x0, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:40 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'ip_vti0\x00', @random="000000000400"}) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet6_mreq(0xffffffffffffffff, 0x29, 0x15, &(0x7f0000000180)={@private2}, &(0x7f00000001c0)=0x14) r5 = fcntl$dupfd(r4, 0x0, r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') preadv(r6, &(0x7f00000017c0), 0x1d0, 0x0) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r6, 0x84, 0x0, &(0x7f0000000000)={r7, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@assoc_value={0x0, 0x726fb62e}, 0x0) getsockopt$inet_sctp_SCTP_LOCAL_AUTH_CHUNKS(r5, 0x84, 0x1b, &(0x7f0000000040)={r7, 0x46, "10f2bf785afb5018b39dddd8ebbaba9c35835c4d7bc63503a57167ec01b7e306e9d4faf9472de09f0c3b5828bfc9d6d650d7599df067ed2dd131484dca88f59cb0bb7dec39ee"}, &(0x7f00000000c0)=0x4e) getsockopt$inet_sctp6_SCTP_DEFAULT_SNDINFO(r3, 0x84, 0x22, &(0x7f0000000100)={0xdda, 0x205, 0x2, 0x5, r8}, &(0x7f0000000140)=0x10) [ 2124.503496][T24539] batman_adv: batadv0: Adding interface: macvtap737 [ 2124.527878][T24539] batman_adv: batadv0: The MTU of interface macvtap737 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2124.665243][T24539] batman_adv: batadv0: Not using interface macvtap737 (retrying later): interface not active 22:43:41 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:41 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x40000000000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:41 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) sendmsg$IPCTNL_MSG_CT_GET_UNCONFIRMED(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x14, 0x7, 0x1, 0x201, 0x0, 0x0, {0x7, 0x0, 0x4}, ["", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x2000c014) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x0, 0x80000000}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) clone(0x20082334ffc, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) exit_group(0x0) pipe(&(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) fcntl$lock(r3, 0x10000000000025, &(0x7f0000000040)={0x1}) syz_open_dev$swradio(&(0x7f0000000000)='/dev/swradio#\x00', 0x0, 0x2) socket$inet6(0xa, 0x0, 0x0) fcntl$lock(r2, 0x7, &(0x7f0000000100)) close(r3) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:41 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2124.941787][T24553] batman_adv: batadv0: Adding interface: macvtap738 [ 2124.978997][T24553] batman_adv: batadv0: The MTU of interface macvtap738 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2125.139657][T24553] batman_adv: batadv0: Not using interface macvtap738 (retrying later): interface not active 22:43:41 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) write$UHID_SET_REPORT_REPLY(r2, &(0x7f0000000040)={0xe, {0x7, 0x6, 0x7f, 0x22, "e225219a2ce3be3f9b12f0226210b434fbb5f01ec92b1c9d8123d0bb9649bb3189dd"}}, 0x2e) close(r0) r3 = socket$kcm(0x2b, 0x4, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:41 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xeac10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:41 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x0, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:42 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x300000000000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2125.621380][T24575] batman_adv: batadv0: Adding interface: macvtap739 [ 2125.707713][T24575] batman_adv: batadv0: The MTU of interface macvtap739 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:42 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2125.899496][T24575] batman_adv: batadv0: Not using interface macvtap739 (retrying later): interface not active 22:43:42 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x0, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:42 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$nl_netfilter(0x10, 0x3, 0xc) ioctl$FS_IOC_FIEMAP(r2, 0xc020660b, &(0x7f0000000280)={0x9, 0x0, 0x4, 0x7, 0x9, [{0x8, 0x0, 0x5, [], 0x1002}, {0x6, 0x6ccc38ae, 0x100000000, [], 0x400}, {0x80000000, 0x5, 0x9}, {0x6, 0x4, 0xd721, [], 0x2c08}, {0x1ff, 0x7fffffff, 0x100000000, [], 0x480}, {0x13a3, 0x7, 0x5, [], 0x1}, {0x1, 0x0, 0x63, [], 0x1608}, {0x2, 0x8000, 0x8, [], 0x1000}, {0x1, 0x7a, 0xffffffffffffff7f, [], 0x1300}]}) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = fcntl$dupfd(r3, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) r5 = socket$inet6_tcp(0xa, 0x1, 0x0) r6 = fcntl$dupfd(r5, 0x0, r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) ioctl$SOUND_OLD_MIXER_INFO(r6, 0x80304d65, &(0x7f0000000080)) ioctl$VHOST_GET_FEATURES(r4, 0x8008af00, &(0x7f0000000040)) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:42 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xebc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:42 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x800000000000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:42 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$TIOCGSID(r3, 0x5429, &(0x7f0000000080)=0x0) fcntl$setown(r3, 0x8, r4) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$PERF_EVENT_IOC_ID(r3, 0x80082407, &(0x7f0000000040)) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2126.448751][T24601] batman_adv: batadv0: Adding interface: macvtap740 22:43:42 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x0, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2126.515479][T24601] batman_adv: batadv0: The MTU of interface macvtap740 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2126.686940][T24601] batman_adv: batadv0: Not using interface macvtap740 (retrying later): interface not active 22:43:43 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) sendmsg$RDMA_NLDEV_CMD_RES_QP_GET(r3, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, 0x140a, 0x200, 0x70ad25, 0x25dfdbff, "", [@RDMA_NLDEV_ATTR_RES_LQPN={0x8, 0x15, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}]}, 0x28}, 0x1, 0x0, 0x0, 0x48800}, 0x20044891) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) r5 = fcntl$dupfd(r4, 0x0, r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) ioctl$VIDIOC_SUBDEV_S_EDID(r5, 0xc0285629, &(0x7f0000000180)={0x0, 0x3, 0xfffffffc, [], &(0x7f0000000140)=0x1f}) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @dev={[], 0x16}}) 22:43:43 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2126.935692][T24620] batman_adv: batadv0: Adding interface: macvtap741 22:43:43 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2126.975533][T24620] batman_adv: batadv0: The MTU of interface macvtap741 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2127.077263][T24620] batman_adv: batadv0: Not using interface macvtap741 (retrying later): interface not active 22:43:43 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xecc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:43 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x900000000000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:43 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) r2 = gettid() tkill(r2, 0x1000000000013) perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0x2, 0x4e, 0xce, 0x5, 0x0, 0x2, 0x21800, 0xe, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x3, 0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x7fffffff, 0x0, @perf_config_ext={0x5, 0x877c}, 0x48106, 0x1, 0x1, 0x8, 0x1, 0x20, 0xca2c}, r2, 0x0, 0xffffffffffffffff, 0x3) r3 = socket$unix(0x1, 0x5, 0x0) bind$unix(r3, &(0x7f0000000200)=@file={0x1, './file0\x00'}, 0x6e) listen(r3, 0x0) r4 = fcntl$dupfd(r3, 0x406, 0xffffffffffffffff) r5 = socket$inet6_tcp(0xa, 0x1, 0x0) r6 = fcntl$dupfd(r5, 0x0, r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) r7 = syz_genetlink_get_family_id$ipvs(&(0x7f0000000200)='IPVS\x00') sendmsg$IPVS_CMD_NEW_SERVICE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000080)={&(0x7f0000000380)={0xe8, r7, 0x0, 0x70bd2a, 0x25dfdbfb, {}, [@IPVS_CMD_ATTR_DEST={0x4}, @IPVS_CMD_ATTR_DAEMON={0x1c, 0x3, 0x0, 0x1, [@IPVS_DAEMON_ATTR_SYNC_ID={0x8}, @IPVS_DAEMON_ATTR_STATE={0x8, 0x1, 0x1}, @IPVS_DAEMON_ATTR_SYNC_MAXLEN={0x6, 0x4, 0x9}]}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0x7}, @IPVS_CMD_ATTR_SERVICE={0x60, 0x1, 0x0, 0x1, [@IPVS_SVC_ATTR_FWMARK={0x8}, @IPVS_SVC_ATTR_FLAGS={0xc, 0x7, {0x0, 0x1}}, @IPVS_SVC_ATTR_AF={0x6, 0x1, 0x2}, @IPVS_SVC_ATTR_ADDR={0x14, 0x3, @ipv4=@dev={0xac, 0x14, 0x14, 0x24}}, @IPVS_SVC_ATTR_SCHED_NAME={0x7, 0x6, 'rr\x00'}, @IPVS_SVC_ATTR_ADDR={0x14, 0x3, @ipv4=@broadcast}, @IPVS_SVC_ATTR_PROTOCOL={0x6, 0x2, 0x55}, @IPVS_SVC_ATTR_PORT={0x6, 0x4, 0x4e23}]}, @IPVS_CMD_ATTR_TIMEOUT_UDP={0x8, 0x6, 0x6}, @IPVS_CMD_ATTR_DEST={0x44, 0x2, 0x0, 0x1, [@IPVS_DEST_ATTR_WEIGHT={0x8}, @IPVS_DEST_ATTR_FWD_METHOD={0x8, 0x3, 0x2}, @IPVS_DEST_ATTR_WEIGHT={0x8}, @IPVS_DEST_ATTR_TUN_PORT={0x6, 0xe, 0x4e21}, @IPVS_DEST_ATTR_ADDR_FAMILY={0x6, 0xb, 0x2}, @IPVS_DEST_ATTR_PORT={0x6, 0x2, 0x4e24}, @IPVS_DEST_ATTR_TUN_PORT={0x6, 0xe, 0x4e23}, @IPVS_DEST_ATTR_TUN_TYPE={0x5, 0xd, 0x1}]}]}, 0xe8}, 0x1, 0x0, 0x0, 0x4}, 0x800) sendmsg$IPVS_CMD_SET_INFO(r6, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x3c, r7, 0x20, 0x3, 0x80000000, {}, [@IPVS_CMD_ATTR_DAEMON={0x28, 0x3, 0x0, 0x1, [@IPVS_DAEMON_ATTR_MCAST_IFN={0x14, 0x2, 'veth1_to_batadv\x00'}, @IPVS_DAEMON_ATTR_SYNC_ID={0x8}, @IPVS_DAEMON_ATTR_MCAST_TTL={0x5, 0x8, 0x4}]}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4040}, 0x40000) ioctl$CAPI_GET_PROFILE(r4, 0xc0404309, &(0x7f00000000c0)=0x5) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:43 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2127.596566][T24636] batman_adv: batadv0: Adding interface: macvtap742 [ 2127.659504][T24636] batman_adv: batadv0: The MTU of interface macvtap742 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2127.897552][T24636] batman_adv: batadv0: Not using interface macvtap742 (retrying later): interface not active 22:43:44 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:44 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2128.076572][T24656] batman_adv: batadv0: Adding interface: macvtap743 [ 2128.118232][T24656] batman_adv: batadv0: The MTU of interface macvtap743 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2128.302017][T24656] batman_adv: batadv0: Not using interface macvtap743 (retrying later): interface not active 22:43:44 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x1000000000000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:44 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xedc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:44 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2128.761151][T24676] batman_adv: batadv0: Adding interface: macvtap744 [ 2128.794367][T24676] batman_adv: batadv0: The MTU of interface macvtap744 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:45 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, 0x0, &(0x7f0000000040)) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={0x0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:45 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2128.985915][T24676] batman_adv: batadv0: Not using interface macvtap744 (retrying later): interface not active 22:43:45 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x6400000000000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:45 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xee030000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2129.508792][T24698] batman_adv: batadv0: Adding interface: macvtap745 22:43:45 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2129.558204][T24698] batman_adv: batadv0: The MTU of interface macvtap745 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2129.687089][T24698] batman_adv: batadv0: Not using interface macvtap745 (retrying later): interface not active [ 2129.911478][T24708] batman_adv: batadv0: Adding interface: macvtap746 [ 2129.960946][T24708] batman_adv: batadv0: The MTU of interface macvtap746 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2130.061226][T24708] batman_adv: batadv0: Not using interface macvtap746 (retrying later): interface not active 22:43:46 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:46 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, 0x0, &(0x7f0000000040)) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={0x0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:46 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xeec10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:46 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0xc307000000000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:46 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, 0x0, 0x0) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:47 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x1) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000040)={'rose0\x00', @random}) r1 = socket$netlink(0x10, 0x3, 0x4) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$devlink(&(0x7f0000000000)='devlink\x00') sendmsg$DEVLINK_CMD_PORT_SET(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000002700)={0x44, r3, 0x105, 0x0, 0x0, {0x33}, [{{@nsim={{0xe, 0x1, 'netdevsim\x00'}, {0xf, 0x2, {'netdevsim', 0x0}}}, {0x8}}, {0x6}}]}, 0xa2}}, 0x0) sendmsg$DEVLINK_CMD_PORT_GET(r1, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd4, r3, 0x100, 0x70bd2c, 0x25dfdbfe, {}, [{{@nsim={{0xe, 0x1, 'netdevsim\x00'}, {0xf, 0x2, {'netdevsim', 0x0}}}, {0x8, 0x3, 0x1}}}, {{@nsim={{0xe, 0x1, 'netdevsim\x00'}, {0xf, 0x2, {'netdevsim', 0x0}}}, {0x8, 0x3, 0x2}}}, {{@nsim={{0xe, 0x1, 'netdevsim\x00'}, {0xf, 0x2, {'netdevsim', 0x0}}}, {0x8, 0x3, 0x2}}}, {{@pci={{0x8, 0x1, 'pci\x00'}, {0x11, 0x2, '0000:00:10.0\x00'}}, {0x8, 0x3, 0x3}}}, {{@pci={{0x8, 0x1, 'pci\x00'}, {0x11, 0x2, '0000:00:10.0\x00'}}, {0x8, 0x3, 0x3}}}]}, 0xd4}, 0x1, 0x0, 0x0, 0x480a1}, 0x804) [ 2130.796577][T24722] batman_adv: batadv0: Adding interface: macvtap747 [ 2130.849787][T24722] batman_adv: batadv0: The MTU of interface macvtap747 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2130.949238][T24722] batman_adv: batadv0: Not using interface macvtap747 (retrying later): interface not active 22:43:47 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$VIDIOC_G_EXT_CTRLS(r2, 0xc0205647, &(0x7f00000000c0)={0xa20000, 0x1, 0x80000000, r0, 0x0, &(0x7f0000000080)={0x9e0905, 0x8, [], @p_u8=&(0x7f0000000040)=0xa2}}) close(r0) r3 = socket$kcm(0x2b, 0x1, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) r5 = fcntl$dupfd(r4, 0x0, r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) epoll_ctl$EPOLL_CTL_ADD(0xffffffffffffffff, 0x1, 0xffffffffffffffff, &(0x7f0000c85000)) epoll_ctl$EPOLL_CTL_MOD(0xffffffffffffffff, 0x3, 0xffffffffffffffff, &(0x7f0000f2cff4)={0x77540947ad9a168d}) r6 = socket$unix(0x1, 0x5, 0x0) bind$unix(r6, &(0x7f0000000200)=@file={0x1, './file0\x00'}, 0x6e) listen(r6, 0x0) ioctl$EXT4_IOC_MOVE_EXT(0xffffffffffffffff, 0xc028660f, &(0x7f0000000200)={0x0, r6, 0xa9, 0x5, 0x80000001, 0x5}) sendmsg$RDMA_NLDEV_CMD_STAT_DEL(r5, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x28, 0x1412, 0x2, 0x70bd2d, 0x25dfdbfc, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_RES_LQPN={0x8, 0x15, 0x3}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}]}, 0x28}, 0x1, 0x0, 0x0, 0x24044010}, 0x8001) ioctl$EXT4_IOC_ALLOC_DA_BLKS(r3, 0x660c) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2131.137246][T24739] batman_adv: batadv0: Adding interface: macvtap748 [ 2131.186489][T24739] batman_adv: batadv0: The MTU of interface macvtap748 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2131.240357][T24739] batman_adv: batadv0: Not using interface macvtap748 (retrying later): interface not active 22:43:47 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x735002, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$unix(0x1, 0x5, 0x0) bind$unix(r2, &(0x7f0000000200)=@file={0x1, './file0\x00'}, 0x6e) listen(r2, 0x0) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = fcntl$dupfd(r3, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) r5 = socket$unix(0x1, 0x5, 0x0) bind$unix(r5, &(0x7f0000000200)=@file={0x1, './file0\x00'}, 0x6e) listen(r5, 0x0) ioctl$VIDIOC_QBUF(r4, 0xc058560f, &(0x7f00000000c0)={0x95, 0xa, 0x4, 0x100, 0x5, {}, {0x1, 0x0, 0x7, 0x3, 0x0, 0x4, "f97500f3"}, 0x8238, 0x3, @fd, 0x3, 0x0, r5}) ioctl$sock_kcm_SIOCKCMATTACH(0xffffffffffffffff, 0x89e0, &(0x7f0000000140)={r2, r6}) r7 = socket$inet6_tcp(0xa, 0x1, 0x0) r8 = fcntl$dupfd(r7, 0x0, r7) ioctl$PERF_EVENT_IOC_ENABLE(r8, 0x8912, 0x400200) ioctl$UI_BEGIN_FF_ERASE(r8, 0xc00c55ca, &(0x7f0000000040)={0x7, 0x6, 0x5f7}) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00'}) 22:43:47 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xefc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:47 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffff00000000, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:47 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000040)='/dev/net/tun\x00', 0x40200, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$PERF_EVENT_IOC_QUERY_BPF(r3, 0xc008240a, &(0x7f00000000c0)=ANY=[@ANYBLOB="080000000000000000000000000000000000000000000000842bcdf6d7e7fed71910e60000000000000000000000000000000048c3d0259eaf706f427de68b1c8d070cb50a89560eb7992fbf830a1a4c95bcd2eec21f9fd60d08ccb9803642e4791a32089437d40fca61af9dfcf868d5fdfaad3621db490f86fc80d8540e85269ff2e8d383b1facb26bdd7d0f7f4c2c732eb7537485fb4c05058d977e089cf7ae2f6b63e85c1bfe4f8"]) r4 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x1) ioctl$TUNSETOFFLOAD(r4, 0x400454d0, 0x4) r5 = gettid() tkill(r5, 0x1000000000013) ptrace$poke(0x5, r5, &(0x7f0000000000), 0xfffffffffffffffe) close(r0) r6 = socket$kcm(0x2b, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:47 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:47 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, 0x0, 0x0) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:48 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, 0x0, &(0x7f0000000040)) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={0x0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2131.620366][T24750] batman_adv: batadv0: Adding interface: macvtap749 [ 2131.648572][T24750] batman_adv: batadv0: The MTU of interface macvtap749 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2131.825005][T24750] batman_adv: batadv0: Not using interface macvtap749 (retrying later): interface not active 22:43:48 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000003}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:48 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf0c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2132.385973][T24780] batman_adv: batadv0: Adding interface: macvtap750 22:43:48 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2132.435439][T24780] batman_adv: batadv0: The MTU of interface macvtap750 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:48 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, 0x0, 0x0) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:48 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2132.566516][T24780] batman_adv: batadv0: Not using interface macvtap750 (retrying later): interface not active [ 2132.741765][T24792] batman_adv: batadv0: Adding interface: macvtap751 [ 2132.767589][T24792] batman_adv: batadv0: The MTU of interface macvtap751 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2132.876087][T24792] batman_adv: batadv0: Not using interface macvtap751 (retrying later): interface not active 22:43:49 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000008}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:49 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf0ffffff, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2133.379414][T24808] batman_adv: batadv0: Adding interface: macvtap752 22:43:49 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2133.426612][T24808] batman_adv: batadv0: The MTU of interface macvtap752 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2133.506161][T24808] batman_adv: batadv0: Not using interface macvtap752 (retrying later): interface not active [ 2133.638557][T24815] batman_adv: batadv0: Adding interface: macvtap753 [ 2133.659417][T24815] batman_adv: batadv0: The MTU of interface macvtap753 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2133.734917][T24815] batman_adv: batadv0: Not using interface macvtap753 (retrying later): interface not active 22:43:51 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) setsockopt$inet_sctp_SCTP_AUTO_ASCONF(r2, 0x84, 0x1e, &(0x7f0000000040)=0x8, 0x4) r3 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:51 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:51 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:51 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000009}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:51 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf1726360, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:51 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2134.798723][T24834] batman_adv: batadv0: Adding interface: macvtap754 [ 2134.865360][T24834] batman_adv: batadv0: The MTU of interface macvtap754 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2135.095634][T24834] batman_adv: batadv0: Not using interface macvtap754 (retrying later): interface not active 22:43:51 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000010}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2135.254136][T24852] batman_adv: batadv0: Adding interface: macvtap755 22:43:51 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = socket$unix(0x1, 0x5, 0x0) bind$unix(r3, &(0x7f0000000200)=@file={0x1, './file0\x00'}, 0x6e) listen(r3, 0x0) r4 = fcntl$dupfd(r2, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) sendmsg$NFT_MSG_GETGEN(r4, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, 0x10, 0xa, 0x101, 0x0, 0x0, {0xa, 0x0, 0x5}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4000}, 0x841) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2135.305195][T24852] batman_adv: batadv0: The MTU of interface macvtap755 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2135.474016][T24852] batman_adv: batadv0: Not using interface macvtap755 (retrying later): interface not active 22:43:51 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:51 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$KDENABIO(r3, 0x4b36) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:51 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:52 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf1c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:52 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2135.928475][T24874] batman_adv: batadv0: Adding interface: macvtap756 [ 2136.001763][T24874] batman_adv: batadv0: The MTU of interface macvtap756 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2136.171845][T24874] batman_adv: batadv0: Not using interface macvtap756 (retrying later): interface not active 22:43:52 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000064}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:52 executing program 1: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket$netlink(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r4, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000004c0)=ANY=[], 0x48}}, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="740000002400070500"/20, @ANYRES32=r5, @ANYBLOB="00000000ffffffff0000000008000100736671"], 0x74}}, 0x0) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000600)=ANY=[@ANYBLOB="840000006400010700"/20, @ANYRES32=r5, @ANYBLOB="000800800000000003000000080001"], 0x84}}, 0x0) setsockopt$packet_add_memb(r1, 0x107, 0x1, &(0x7f0000000100)={r5, 0x1, 0x6, @broadcast}, 0xffffffa1) r6 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x406402, 0x0) write$P9_RWRITE(0xffffffffffffffff, &(0x7f0000000300)={0xb, 0x77, 0x1}, 0xffffffffffffff5b) close(r6) r7 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x400200) r8 = creat(&(0x7f0000000040)='./file0\x00', 0x0) getsockopt$TIPC_DEST_DROPPABLE(r8, 0x10f, 0x81, &(0x7f0000000080), &(0x7f00000000c0)=0x4) ioctl$SIOCSIFHWADDR(r6, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2136.490834][T24886] batman_adv: batadv0: Adding interface: macvtap757 [ 2136.546489][T24886] batman_adv: batadv0: The MTU of interface macvtap757 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:53 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x0, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:53 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:53 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100)='/dev/net/tun\x00', 0x140, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$nvme_fabrics(0xffffffffffffff9c, &(0x7f0000000440)='/dev/nvme-fabrics\x00', 0x400080, 0x0) r3 = socket$unix(0x1, 0x5, 0x0) bind$unix(r3, &(0x7f0000000200)=@file={0x1, './file0\x00'}, 0x6e) sendmsg$sock(r3, &(0x7f0000000580)={&(0x7f0000000040)=@phonet={0x23, 0x46, 0xff, 0x7}, 0x80, &(0x7f0000000a40), 0x0, &(0x7f0000000600)=[@mark={{0x14, 0x1, 0x24, 0x10000}}, @timestamping={{0x14, 0x1, 0x25, 0x3}}, @mark={{0x14, 0x1, 0x24, 0x1f}}], 0x48}, 0x41) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) ioctl$SNDRV_TIMER_IOCTL_START(r2, 0x54a0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) r5 = fcntl$dupfd(r2, 0x406, r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$inet6_tcp(0xa, 0x1, 0x0) r7 = fcntl$dupfd(r6, 0x0, r6) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x20000400202) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000004c0)={r7, 0x0, 0xec, 0x90, &(0x7f00000006c0)="04ae3ca982e4a61d0d7d4a7f3e8d27f946c0faf6567df3cba523c5540eed72d28343af12ce332d4fdd5d6e635b0615896a4b09530f42f6a52a099424f2d3204bdcec84a56e8bf2192012b88a8342ae9e91cb3c8f06ba7c914ad000a2f83efecba41b5f2185fd80f3f3634772da8e1e1c69461bfc458320c9e38ea203cbddaf70ffe2d25e838f5623d0155c3f1e12fe044d05654d2d7b9afdea53995f177abf064b94473088e2755f66fe1b2a849ac8d36ace0e97b38fec35cf0fd685c6376868a20fff5bc21ae2e67957e4dda159231504b71ade10a895d065cd8fe01eb979da3ce129b13d138000a9514711", &(0x7f00000007c0)=""/144, 0xaa18, 0x0, 0x14e, 0x2c, &(0x7f0000000280)="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", &(0x7f00000000c0)="6188505e4b26617bea907585b065c7b8d5c2883a75dd38773533cba48f1503940d074f84deb5d3f2fcb3e4b3"}, 0x40) setsockopt$netlink_NETLINK_DROP_MEMBERSHIP(r5, 0x10e, 0x2, &(0x7f00000005c0)=0x12, 0x4) r8 = inotify_init() ioctl$INOTIFY_IOC_SETNEXTWD(r8, 0x40044900, 0x4) [ 2136.630140][T24886] batman_adv: batadv0: Not using interface macvtap757 (retrying later): interface not active [ 2136.702663][T24896] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.1'. [ 2136.739513][T24892] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.1'. 22:43:53 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf2030000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:53 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) setsockopt$inet_sctp6_SCTP_AUTO_ASCONF(r2, 0x84, 0x1e, &(0x7f0000000040)=0x40, 0x4) r3 = socket$kcm(0x2b, 0x1, 0x0) munlockall() ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:53 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) socket$inet(0x2, 0x2, 0x0) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2137.034092][T24908] batman_adv: batadv0: Adding interface: macvtap758 [ 2137.076515][T24908] batman_adv: batadv0: The MTU of interface macvtap758 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:53 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) socket$inet_sctp(0x2, 0x5, 0x84) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2137.261995][T24908] batman_adv: batadv0: Not using interface macvtap758 (retrying later): interface not active 22:43:53 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000300}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2137.556305][T24924] batman_adv: batadv0: Adding interface: macvtap759 22:43:53 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100)='/dev/net/tun\x00', 0x400000, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x2, 0x0) r2 = epoll_create1(0x0) r3 = epoll_create1(0x0) close(r2) epoll_ctl$EPOLL_CTL_ADD(r3, 0x1, r2, &(0x7f0000c85000)) openat$vcsu(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vcsu\x00', 0x208000, 0x0) write$midi(0xffffffffffffffff, &(0x7f0000000080)="aeb27ededc55b325654d5deb7c5a39f7f14ac4563d3f1e7aed3e23f2adf93c2fc381d7d2caa7", 0x26) epoll_ctl$EPOLL_CTL_MOD(r3, 0x3, r2, &(0x7f0000f2cff4)={0x77540947ad9a168d}) ioctl$FITHAW(r3, 0xc0045878) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(0xffffffffffffffff, 0x8924, &(0x7f00000000c0)={'team_slave_0\x00', @local}) socket$inet6_tcp(0xa, 0x1, 0x0) epoll_create1(0x0) epoll_create1(0x0) r4 = fcntl$dupfd(0xffffffffffffffff, 0x0, 0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) ioctl$LOOP_SET_FD(r4, 0x4c00, r0) syncfs(r1) 22:43:54 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x0, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2137.594575][T24924] batman_adv: batadv0: The MTU of interface macvtap759 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:54 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={0x0, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2137.687324][T24924] batman_adv: batadv0: Not using interface macvtap759 (retrying later): interface not active 22:43:54 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) syz_open_dev$mouse(&(0x7f0000000040)='/dev/input/mouse#\x00', 0xcd, 0x0) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:54 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf2c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:54 executing program 1: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$BLKIOMIN(r1, 0x1278, &(0x7f0000000080)) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r2) r3 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) r4 = epoll_create1(0x0) r5 = epoll_create1(0x0) close(r4) epoll_ctl$EPOLL_CTL_ADD(r5, 0x1, r4, &(0x7f0000c85000)) r6 = epoll_create1(0x0) r7 = epoll_create1(0x0) close(r6) epoll_ctl$EPOLL_CTL_ADD(r7, 0x1, r6, &(0x7f0000c85000)) epoll_ctl$EPOLL_CTL_MOD(r7, 0x3, r6, &(0x7f0000f2cff4)={0x1}) epoll_ctl$EPOLL_CTL_MOD(r5, 0x3, 0xffffffffffffffff, &(0x7f0000f2cff4)={0x775409473d9a3688}) signalfd4(r5, &(0x7f0000000040)={[0x40]}, 0x8, 0x80800) ioctl$SIOCSIFHWADDR(r2, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2138.222075][T24946] batman_adv: batadv0: Adding interface: macvtap760 22:43:54 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2138.284205][T24946] batman_adv: batadv0: The MTU of interface macvtap760 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2138.450594][T24946] batman_adv: batadv0: Not using interface macvtap760 (retrying later): interface not active 22:43:55 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x0, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:55 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa0007c3}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:55 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = fcntl$dupfd(r3, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) write$P9_RSTAT(r4, &(0x7f00000000c0)={0x4a, 0x7d, 0x2, {0x0, 0x43, 0x6, 0x4, {0x2, 0x0, 0x3}, 0x80000, 0xfffffffb, 0x52f5, 0x4, 0x1, ',', 0xb, 'veth0_vlan\x00', 0x0, '', 0x4, 'proc'}}, 0x4a) r5 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) ioctl$VT_GETSTATE(r5, 0x5603, &(0x7f0000000040)={0x4, 0x47d2, 0x8}) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) setsockopt$inet_mreq(r5, 0x0, 0x20, &(0x7f0000000080)={@rand_addr=0x64010101, @initdev={0xac, 0x1e, 0x1, 0x0}}, 0x8) r6 = syz_open_dev$vcsn(&(0x7f0000000140)='/dev/vcs#\x00', 0x6, 0xc800) recvfrom$phonet(r6, &(0x7f0000000280)=""/221, 0xdd, 0x10120, 0x0, 0x0) [ 2138.675080][T24961] batman_adv: batadv0: Adding interface: macvtap761 22:43:55 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2138.712435][T24961] batman_adv: batadv0: The MTU of interface macvtap761 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2138.846858][T24961] batman_adv: batadv0: Not using interface macvtap761 (retrying later): interface not active 22:43:55 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'bridge0\x00', @random="01003a1e2410"}) 22:43:55 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf3c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:55 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000900}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2139.327032][T24985] batman_adv: batadv0: Adding interface: macvtap762 22:43:55 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2139.358761][T24985] batman_adv: batadv0: The MTU of interface macvtap762 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2139.466649][T24985] batman_adv: batadv0: Not using interface macvtap762 (retrying later): interface not active 22:43:56 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x414200, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) setsockopt$inet_sctp6_SCTP_RECVRCVINFO(r3, 0x84, 0x20, &(0x7f0000000040)=0x956, 0x4) [ 2139.704482][T24997] batman_adv: batadv0: Adding interface: macvtap763 22:43:56 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:56 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) dup3(r1, r2, 0x0) [ 2139.735367][T24997] batman_adv: batadv0: The MTU of interface macvtap763 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2139.830322][T24997] batman_adv: batadv0: Not using interface macvtap763 (retrying later): interface not active 22:43:56 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @dev={[], 0x2a}}) 22:43:56 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) 22:43:56 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf4c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:56 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa004000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:56 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$kcm(0x2b, 0x1, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = fcntl$dupfd(r3, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) r5 = socket$inet6_tcp(0xa, 0x1, 0x0) r6 = fcntl$dupfd(r5, 0x0, r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) ioctl$TUNSETVNETLE(r6, 0x400454dc, &(0x7f00000000c0)=0x3) r7 = openat$full(0xffffffffffffff9c, &(0x7f0000000080)='/dev/full\x00', 0x280, 0x0) ioctl$VIDIOC_PREPARE_BUF(r7, 0xc058565d, &(0x7f0000000100)={0x1ffe0000, 0x1, 0x4, 0x1000, 0xe0000000, {0x77359400}, {0x5, 0x8, 0x8, 0x3, 0x9, 0xf7, "2a799909"}, 0x6, 0x4, @offset=0x8, 0x77, 0x0, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r8, 0x8912, 0xc133) r9 = openat$mixer(0xffffffffffffff9c, &(0x7f0000000040)='/dev/mixer\x00', 0x3, 0x0) ioctl$FITHAW(r9, 0xc0045878) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2140.418965][T25022] batman_adv: batadv0: Adding interface: macvtap764 [ 2140.491905][T25022] batman_adv: batadv0: The MTU of interface macvtap764 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:57 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2140.741435][T25022] batman_adv: batadv0: Not using interface macvtap764 (retrying later): interface not active 22:43:57 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:43:57 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) r2 = eventfd2(0x0, 0x0) r3 = add_key$user(&(0x7f0000000540)='user\x00', &(0x7f0000000340)={'syz', 0x0}, &(0x7f0000000100), 0x26, 0xfffffffffffffffe) r4 = add_key$user(&(0x7f00000000c0)='user\x00', &(0x7f0000000440)={'syz'}, &(0x7f0000000380)='X', 0x1, 0xfffffffffffffffe) r5 = add_key$user(&(0x7f00000000c0)='user\x00', &(0x7f0000000440)={'syz'}, &(0x7f0000000380)='X', 0x1, 0xfffffffffffffffe) keyctl$dh_compute(0x17, &(0x7f0000000040)={r3, r5, r4}, &(0x7f0000000140)=""/8, 0x8, &(0x7f0000000080)={&(0x7f00000000c0)={'blake2s-256-generic\x00'}}) r6 = add_key$keyring(&(0x7f0000000140)='keyring\x00', &(0x7f0000000200)={'syz'}, 0x0, 0x0, 0xffffffffffffffff) r7 = add_key$keyring(&(0x7f0000000100)='keyring\x00', &(0x7f0000000040)={'syz', 0x3}, 0x0, 0x0, r6) r8 = add_key$keyring(&(0x7f0000000000)='keyring\x00', &(0x7f00000000c0)={'syz', 0x3}, 0x0, 0x0, r7) keyctl$KEYCTL_MOVE(0x1e, r8, r6, r7, 0x0) r9 = add_key$keyring(&(0x7f0000000080)='keyring\x00', &(0x7f00000000c0)={'syz', 0x3}, 0x0, 0x0, r8) keyctl$negate(0xd, r3, 0x6551, r9) writev(r2, &(0x7f0000000140)=[{&(0x7f0000000040)="e04a4f74b80de1fa", 0x8}, {&(0x7f00000001c0)="ffffffffffffffff", 0x8}], 0x2) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r10 = socket$inet6_tcp(0xa, 0x1, 0x0) r11 = fcntl$dupfd(r10, 0x0, r10) ioctl$PERF_EVENT_IOC_ENABLE(r11, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r11, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="1eed3a1e24b0"}) [ 2140.921502][T25040] batman_adv: batadv0: Adding interface: macvtap765 [ 2140.975698][T25040] batman_adv: batadv0: The MTU of interface macvtap765 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2141.143647][T25040] batman_adv: batadv0: Not using interface macvtap765 (retrying later): interface not active 22:43:57 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) dup3(r1, r2, 0x0) 22:43:57 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf5c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:57 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) write$tun(r0, &(0x7f0000000280)={@void, @void, @mpls={[{0x5, 0x0, 0x1}, {0xffff9, 0x0, 0x1}, {0x839}, {0x7, 0x0, 0x1}, {0x3}, {0x2}, {0x59f, 0x0, 0x1}, {0x5, 0x0, 0x1}, {0xed3, 0x0, 0x1}], @ipv6=@icmpv6={0x5, 0x6, "4b23af", 0x1290, 0x3a, 0xff, @mcast2, @private1, {[@hopopts={0x32, 0x5, [], [@jumbo={0xc2, 0x4, 0x81}, @padn={0x1, 0x4, [0x0, 0x0, 0x0, 0x0]}, @ra={0x5, 0x2, 0x7ff}, @pad1, @ra={0x5, 0x2, 0x8}, @hao={0xc9, 0x10, @private0={0xfc, 0x0, [], 0x1}}]}, @fragment={0x8, 0x0, 0x9a, 0x0, 0x0, 0x7, 0x68}, @hopopts={0x21, 0x2, [], [@hao={0xc9, 0x10, @private1={0xfc, 0x1, [], 0x1}}]}, @hopopts={0x33, 0x27, [], [@padn={0x1, 0x1, [0x0]}, @generic={0x7, 0xee, "59f8cee5fbc16b31e9736c7f775b44182996044322d17b75940b770be968d618aa67b3675d8eaec037323abb8bdcf10833fdcfb135d4af1107f5dee2d6f4b986df2dec1fa8201f54d890f0852dc7cb2268f744882dff0ad80d9de2191f6a7aad70e0013d4622921cc8c6ddd7fd2a656b5dde8d8e13f89043fc20464488b2172ad1ea928a08e26efddac01579f0f3ae04f0b58beb5399a122e2b7b9c5af9610aee23dff0fa7eb79d81f7b689ef236339228997ca02d19d55238090e5ef331947263546971eda9ec2da3ec91d89eb85eb430095a2080a2f6a87e20fe602664d2555081e90ec6fff532f2af7de2b04d"}, @calipso={0x7, 0x38, {0x3, 0xc, 0x1, 0x8000, [0x9, 0x5, 0x40, 0x85, 0x5, 0x81]}}, @padn={0x1, 0x2, [0x0, 0x0]}, @ra={0x5, 0x2, 0x4}, @enc_lim={0x4, 0x1, 0x2}]}], @dest_unreach={0x1, 0x2, 0x0, 0xf8, [], {0x6, 0x6, "bfd72c", 0xc0, 0x2b, 0xff, @private0={0xfc, 0x0, [], 0x1}, @private0={0xfc, 0x0, [], 0x1}, [@fragment={0x2, 0x0, 0xcb, 0x0, 0x0, 0xa, 0x65}, @dstopts={0x0, 0x8, [], [@pad1, @enc_lim={0x4, 0x1, 0xe6}, @padn={0x1, 0x5, [0x0, 0x0, 0x0, 0x0, 0x0]}, @generic={0x4, 0xb, "5bf6d56491f0bd2fe8d46d"}, @calipso={0x7, 0x28, {0x1, 0x8, 0x3, 0x1, [0x5, 0x401, 0x0, 0x1]}}]}, @routing={0x8, 0xc, 0x0, 0x0, 0x0, [@mcast1, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02', @local, @remote, @ipv4={[], [], @empty}, @dev={0xfe, 0x80, [], 0x22}]}], "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0x12dc) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:57 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa006400}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2141.483299][T25059] batman_adv: batadv0: Adding interface: macvtap766 [ 2141.523013][T25059] batman_adv: batadv0: The MTU of interface macvtap766 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2141.692388][T25059] batman_adv: batadv0: Not using interface macvtap766 (retrying later): interface not active 22:43:58 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:58 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) r5 = fcntl$dupfd(r4, 0x0, r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) bpf$BPF_LINK_CREATE(0x1c, &(0x7f0000000040)={r3, r5, 0xb}, 0x10) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:58 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2141.930175][T25074] batman_adv: batadv0: Adding interface: macvtap767 [ 2141.983096][T25074] batman_adv: batadv0: The MTU of interface macvtap767 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2142.048198][T25074] batman_adv: batadv0: Not using interface macvtap767 (retrying later): interface not active 22:43:58 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) sendmsg$IPCTNL_MSG_TIMEOUT_DELETE(r2, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0xc4, 0x2, 0x8, 0x201, 0x0, 0x0, {0x5, 0x0, 0x2}, [@CTA_TIMEOUT_L4PROTO={0x5, 0x3, 0x3a}, @CTA_TIMEOUT_L3PROTO={0x6, 0x2, 0x1, 0x0, 0x6001}, @CTA_TIMEOUT_NAME={0x9, 0x1, 'syz1\x00'}, @CTA_TIMEOUT_DATA={0x24, 0x4, 0x0, 0x1, @fccp=[@CTA_TIMEOUT_DCCP_CLOSEREQ={0x8, 0x5, 0x1, 0x0, 0x3}, @CTA_TIMEOUT_DCCP_REQUEST={0x8, 0x1, 0x1, 0x0, 0x200}, @CTA_TIMEOUT_DCCP_TIMEWAIT={0x8, 0x7, 0x1, 0x0, 0x8}, @CTA_TIMEOUT_DCCP_CLOSING={0x8, 0x6, 0x1, 0x0, 0x7}]}, @CTA_TIMEOUT_NAME={0x9, 0x1, 'syz1\x00'}, @CTA_TIMEOUT_NAME={0x9, 0x1, 'syz0\x00'}, @CTA_TIMEOUT_DATA={0x1c, 0x4, 0x0, 0x1, @icmpv6=[@CTA_TIMEOUT_ICMPV6_TIMEOUT={0x8, 0x1, 0x1, 0x0, 0x9}, @CTA_TIMEOUT_ICMPV6_TIMEOUT={0x8, 0x1, 0x1, 0x0, 0x6}, @CTA_TIMEOUT_ICMPV6_TIMEOUT={0x8, 0x1, 0x1, 0x0, 0x3}]}, @CTA_TIMEOUT_L4PROTO={0x5, 0x3, 0x3a}, @CTA_TIMEOUT_DATA={0x34, 0x4, 0x0, 0x1, @icmpv6=[@CTA_TIMEOUT_ICMPV6_TIMEOUT={0x8, 0x1, 0x1, 0x0, 0x1f}, @CTA_TIMEOUT_ICMPV6_TIMEOUT={0x8, 0x1, 0x1, 0x0, 0x8}, @CTA_TIMEOUT_ICMPV6_TIMEOUT={0x8, 0x1, 0x1, 0x0, 0x1}, @CTA_TIMEOUT_ICMPV6_TIMEOUT={0x8, 0x1, 0x1, 0x0, 0x8}, @CTA_TIMEOUT_ICMPV6_TIMEOUT={0x8, 0x1, 0x1, 0x0, 0x8}, @CTA_TIMEOUT_ICMPV6_TIMEOUT={0x8, 0x1, 0x1, 0x0, 0x4}]}]}, 0xc4}, 0x1, 0x0, 0x0, 0x10}, 0x22000000) r3 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:58 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf6030000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:58 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa00c307}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:58 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) dup3(r1, r2, 0x0) 22:43:58 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$FS_IOC_GETFLAGS(r1, 0x80086601, &(0x7f0000000040)) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2142.600678][T25094] batman_adv: batadv0: Adding interface: macvtap768 22:43:59 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x0, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2142.656034][T25094] batman_adv: batadv0: The MTU of interface macvtap768 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:59 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2142.765803][T25094] batman_adv: batadv0: Not using interface macvtap768 (retrying later): interface not active 22:43:59 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) getsockopt$inet6_mtu(r2, 0x29, 0x17, &(0x7f0000000040), &(0x7f0000000080)=0x4) r3 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:43:59 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf6c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2143.225943][T25125] batman_adv: batadv0: Adding interface: macvtap769 [ 2143.244479][T25125] batman_adv: batadv0: The MTU of interface macvtap769 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:43:59 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x0, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:43:59 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) dup3(r1, r2, 0x0) [ 2143.438256][T25125] batman_adv: batadv0: Not using interface macvtap769 (retrying later): interface not active 22:43:59 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x3}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:43:59 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf7c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:43:59 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) setsockopt$inet_msfilter(r3, 0x0, 0x29, &(0x7f0000000040)=ANY=[@ANYBLOB="e0000001e000d840c84598e901be0001010000cb8921"], 0x24) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2143.722062][T25145] batman_adv: batadv0: Adding interface: macvtap770 [ 2143.763568][T25145] batman_adv: batadv0: The MTU of interface macvtap770 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:00 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) dup3(r1, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) [ 2143.813474][T25145] batman_adv: batadv0: Not using interface macvtap770 (retrying later): interface not active 22:44:00 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x8}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2144.037336][T25159] batman_adv: batadv0: Adding interface: macvtap771 22:44:00 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_to_batadv\x00', @remote}) r2 = openat$mice(0xffffffffffffff9c, &(0x7f0000000040)='/dev/input/mice\x00', 0x2103) ioctl$KVM_SET_BOOT_CPU_ID(r2, 0xae78, &(0x7f0000000080)=0x1) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = fcntl$dupfd(r3, 0x0, r3) r5 = socket$unix(0x1, 0x2, 0x0) bind$unix(r5, &(0x7f0000000200)=@file={0x1, './file0\x00'}, 0x6e) listen(r5, 0x0) kcmp(0x0, 0x0, 0xd, r5, r1) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) r6 = syz_open_procfs(0x0, &(0x7f0000000140)='projid_map\x00') preadv(r6, &(0x7f00000017c0), 0x1d0, 0x0) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r6, 0x84, 0x0, &(0x7f0000000000)={r7, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r7, 0x6, 0x7}, 0x0) getsockopt$inet_sctp_SCTP_PR_ASSOC_STATUS(r4, 0x84, 0x73, &(0x7f00000000c0)={r7, 0x1000, 0x20, 0x3, 0x5}, &(0x7f0000000100)=0x18) 22:44:00 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x0, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2144.121986][T25159] batman_adv: batadv0: The MTU of interface macvtap771 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2144.267600][T25159] batman_adv: batadv0: Not using interface macvtap771 (retrying later): interface not active 22:44:00 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf8030000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:00 executing program 3: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r0, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r0, 0x3, 0x2}, 0x10) r1 = socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) dup3(r1, r2, 0x0) 22:44:00 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = fcntl$dupfd(r3, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) ioctl$DRM_IOCTL_MODE_LIST_LESSEES(r4, 0xc01064c7, &(0x7f00000000c0)={0x4, 0x0, &(0x7f0000000080)=[0x0, 0x0, 0x0, 0x0]}) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(r2, 0xc01864c6, &(0x7f0000000100)={&(0x7f0000000040)=[0xfffffe8e, 0x1, 0x8e0, 0x0, 0x9905, 0x7fe0000, 0x3ff], 0x7, 0x80000, r5, r0}) r6 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2144.646262][T25186] batman_adv: batadv0: Adding interface: macvtap772 [ 2144.690715][T25186] batman_adv: batadv0: The MTU of interface macvtap772 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:01 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x0, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:01 executing program 5: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:01 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x9}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2144.838344][T25186] batman_adv: batadv0: Not using interface macvtap772 (retrying later): interface not active 22:44:01 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$TUNGETIFF(r2, 0x800454d2, &(0x7f0000000040)) r3 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2145.160901][T25203] batman_adv: batadv0: Adding interface: macvtap773 [ 2145.249557][T25203] batman_adv: batadv0: The MTU of interface macvtap773 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2145.385134][T25203] batman_adv: batadv0: Not using interface macvtap773 (retrying later): interface not active 22:44:01 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x0, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:01 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf8c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:01 executing program 3 (fault-call:3 fault-nth:0): 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:02 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x10}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:02 executing program 5 (fault-call:3 fault-nth:0): perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:02 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000280)={'veth0_vlan\x00', @multicast}) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$VIDIOC_TRY_EXT_CTRLS(r3, 0xc0205649, &(0x7f0000000080)={0xa30000, 0x7, 0x5, 0xffffffffffffffff, 0x0, &(0x7f0000000040)={0x9909cf, 0x1, [], @value64=0x9}}) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000200)='batadv\x00') ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000580)={'batadv0\x00', 0x0}) sendmsg$BATADV_CMD_GET_MESH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000380)={&(0x7f00000003c0)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="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", @ANYRES32=r6, @ANYBLOB="0600280000000000"], 0x24}}, 0x0) sendmsg$BATADV_CMD_GET_ROUTING_ALGOS(r4, &(0x7f0000000180)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000240)={0x34, r5, 0x10, 0x70bd2c, 0x25dfdbfc, {}, [@BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x7fff}, @BATADV_ATTR_VLANID={0x6, 0x28, 0x2}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x40000000}, @BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0xb}]}, 0x34}, 0x1, 0x0, 0x0, 0x80}, 0x40) r7 = socket$inet6_tcp(0xa, 0x1, 0x0) r8 = fcntl$dupfd(r7, 0x0, r7) ioctl$PERF_EVENT_IOC_ENABLE(r8, 0x8912, 0x400200) ioctl$ASHMEM_SET_PROT_MASK(r8, 0x40087705, &(0x7f00000001c0)={0x9, 0x8}) [ 2145.863909][T25235] FAULT_INJECTION: forcing a failure. [ 2145.863909][T25235] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 2145.903007][T25234] batman_adv: batadv0: Adding interface: macvtap774 [ 2145.947267][T25234] batman_adv: batadv0: The MTU of interface macvtap774 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2145.983242][T25250] FAULT_INJECTION: forcing a failure. [ 2145.983242][T25250] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 2145.991443][T25235] CPU: 0 PID: 25235 Comm: syz-executor.3 Not tainted 5.7.0-rc5-syzkaller #0 [ 2146.005172][T25235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2146.015325][T25235] Call Trace: [ 2146.018640][T25235] dump_stack+0x188/0x20d [ 2146.023136][T25235] should_fail.cold+0x5/0xa [ 2146.027659][T25235] ? fault_create_debugfs_attr+0x140/0x140 [ 2146.033492][T25235] __alloc_pages_nodemask+0x17a/0x810 [ 2146.038879][T25235] ? lockdep_hardirqs_on+0x463/0x620 [ 2146.044179][T25235] ? __alloc_pages_slowpath.constprop.0+0x2660/0x2660 [ 2146.051052][T25235] ? retint_kernel+0x2b/0x2b [ 2146.055652][T25235] alloc_pages_current+0xff/0x200 [ 2146.060768][T25235] pipe_write+0xab4/0x1a40 [ 2146.065205][T25235] ? generic_pipe_buf_steal+0x1c0/0x1c0 [ 2146.070780][T25235] ? retint_kernel+0x2b/0x2b [ 2146.075377][T25235] ? new_sync_write+0x101/0x700 [ 2146.080237][T25235] new_sync_write+0x4a2/0x700 [ 2146.084916][T25235] ? new_sync_read+0x7a0/0x7a0 [ 2146.089681][T25235] ? rcu_read_lock_held_common+0x130/0x130 [ 2146.095492][T25235] ? apparmor_path_rmdir+0x30/0x30 [ 2146.100612][T25235] ? lockdep_hardirqs_on+0x463/0x620 [ 2146.105912][T25235] ? security_file_permission+0x8c/0x470 [ 2146.111550][T25235] __vfs_write+0xc9/0x100 [ 2146.115927][T25235] vfs_write+0x268/0x5d0 [ 2146.120181][T25235] ksys_write+0x1ee/0x250 [ 2146.124518][T25235] ? __ia32_sys_read+0xb0/0xb0 [ 2146.129285][T25235] ? trace_hardirqs_off_caller+0x55/0x230 [ 2146.135017][T25235] do_syscall_64+0xf6/0x7d0 [ 2146.139527][T25235] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 2146.145419][T25235] RIP: 0033:0x45ca29 [ 2146.149315][T25235] Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2146.168912][T25235] RSP: 002b:00007fb2808a5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 2146.177322][T25235] RAX: ffffffffffffffda RBX: 000000000050a4c0 RCX: 000000000045ca29 [ 2146.185293][T25235] RDX: 00000000200eb100 RSI: 0000000020000100 RDI: 0000000000000002 [ 2146.193359][T25235] RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2146.201327][T25235] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 2146.209319][T25235] R13: 0000000000000c5a R14: 00000000004ca2fd R15: 00007fb2808a66d4 [ 2146.217329][T25250] CPU: 1 PID: 25250 Comm: syz-executor.5 Not tainted 5.7.0-rc5-syzkaller #0 [ 2146.226012][T25250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2146.236074][T25250] Call Trace: [ 2146.239384][T25250] dump_stack+0x188/0x20d [ 2146.243730][T25250] should_fail.cold+0x5/0xa [ 2146.248250][T25250] ? fault_create_debugfs_attr+0x140/0x140 [ 2146.254088][T25250] __alloc_pages_nodemask+0x17a/0x810 [ 2146.259486][T25250] ? __alloc_pages_slowpath.constprop.0+0x2660/0x2660 [ 2146.266266][T25250] ? copyin+0x10e/0x140 [ 2146.270442][T25250] alloc_pages_current+0xff/0x200 [ 2146.273439][T25234] batman_adv: batadv0: Not using interface macvtap774 (retrying later): interface not active [ 2146.275486][T25250] pipe_write+0xab4/0x1a40 [ 2146.275520][T25250] ? generic_pipe_buf_steal+0x1c0/0x1c0 [ 2146.275534][T25250] ? retint_kernel+0x2b/0x2b [ 2146.275555][T25250] ? new_sync_write+0xcc/0x700 [ 2146.304959][T25250] ? new_sync_write+0xd8/0x700 [ 2146.309747][T25250] new_sync_write+0x4a2/0x700 [ 2146.314443][T25250] ? new_sync_read+0x7a0/0x7a0 [ 2146.319267][T25250] ? lockdep_hardirqs_on+0x463/0x620 [ 2146.324576][T25250] ? apparmor_path_rmdir+0x30/0x30 [ 2146.329716][T25250] ? security_file_permission+0x8c/0x470 [ 2146.335370][T25250] __vfs_write+0xc9/0x100 [ 2146.339721][T25250] vfs_write+0x268/0x5d0 [ 2146.343984][T25250] ksys_write+0x1ee/0x250 [ 2146.348327][T25250] ? __ia32_sys_read+0xb0/0xb0 [ 2146.353106][T25250] ? trace_hardirqs_off_caller+0x55/0x230 [ 2146.358848][T25250] do_syscall_64+0xf6/0x7d0 [ 2146.363379][T25250] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 2146.369280][T25250] RIP: 0033:0x45ca29 [ 2146.373193][T25250] Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 22:44:02 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x0, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2146.392807][T25250] RSP: 002b:00007efddc9cec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 2146.401228][T25250] RAX: ffffffffffffffda RBX: 000000000050a4c0 RCX: 000000000045ca29 [ 2146.409211][T25250] RDX: 00000000200eb100 RSI: 0000000020000100 RDI: 0000000000000002 [ 2146.417194][T25250] RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2146.425181][T25250] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 2146.433165][T25250] R13: 0000000000000c5a R14: 00000000004ca2fd R15: 00007efddc9cf6d4 22:44:02 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x64}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2146.556344][T25257] batman_adv: batadv0: Adding interface: macvtap775 22:44:02 executing program 5 (fault-call:3 fault-nth: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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2146.585040][T25257] batman_adv: batadv0: The MTU of interface macvtap775 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2146.689964][T25257] batman_adv: batadv0: Not using interface macvtap775 (retrying later): interface not active 22:44:03 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(0x0, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:03 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xf9c10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2146.780859][T25271] FAULT_INJECTION: forcing a failure. [ 2146.780859][T25271] name fail_page_alloc, interval 1, probability 0, space 0, times 0 22:44:03 executing program 1: r0 = socket$unix(0x1, 0x5, 0x0) bind$unix(r0, &(0x7f0000000200)=@file={0x1, './file0\x00'}, 0x6e) listen(r0, 0x0) r1 = dup3(0xffffffffffffffff, r0, 0x80000) ioctl$FS_IOC_SETVERSION(r1, 0x40087602, &(0x7f0000000040)=0x329) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r2) r3 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r2, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:03 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x300}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2146.867414][T25271] CPU: 0 PID: 25271 Comm: syz-executor.5 Not tainted 5.7.0-rc5-syzkaller #0 [ 2146.876259][T25271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2146.886351][T25271] Call Trace: [ 2146.889746][T25271] dump_stack+0x188/0x20d [ 2146.894095][T25271] should_fail.cold+0x5/0xa [ 2146.898619][T25271] ? fault_create_debugfs_attr+0x140/0x140 [ 2146.904453][T25271] __alloc_pages_nodemask+0x17a/0x810 [ 2146.909841][T25271] ? lockdep_hardirqs_on+0x463/0x620 [ 2146.915146][T25271] ? __alloc_pages_slowpath.constprop.0+0x2660/0x2660 [ 2146.921970][T25271] ? retint_kernel+0x2b/0x2b [ 2146.926673][T25271] alloc_pages_current+0xff/0x200 [ 2146.931717][T25271] pipe_write+0xab4/0x1a40 [ 2146.936158][T25271] ? aa_file_perm+0x571/0x14d0 [ 2146.940945][T25271] ? generic_pipe_buf_steal+0x1c0/0x1c0 [ 2146.946513][T25271] ? find_held_lock+0x2d/0x110 [ 2146.951302][T25271] ? __fget_files+0x30d/0x500 [ 2146.952468][T25280] batman_adv: batadv0: Adding interface: macvtap776 [ 2146.955988][T25271] new_sync_write+0x4a2/0x700 [ 2146.956008][T25271] ? new_sync_read+0x7a0/0x7a0 [ 2146.956048][T25271] __vfs_write+0xc9/0x100 [ 2146.956067][T25271] vfs_write+0x268/0x5d0 [ 2146.980636][T25271] ksys_write+0x1ee/0x250 [ 2146.984986][T25271] ? __ia32_sys_read+0xb0/0xb0 [ 2146.990005][T25271] ? fpregs_mark_activate+0x320/0x320 [ 2146.995492][T25271] ? trace_hardirqs_off_caller+0x55/0x230 [ 2147.001238][T25271] do_syscall_64+0xf6/0x7d0 [ 2147.003070][T25280] batman_adv: batadv0: The MTU of interface macvtap776 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2147.005755][T25271] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 2147.005769][T25271] RIP: 0033:0x45ca29 [ 2147.005786][T25271] Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 22:44:03 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2147.005795][T25271] RSP: 002b:00007efddc9cec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 2147.005807][T25271] RAX: ffffffffffffffda RBX: 000000000050a4c0 RCX: 000000000045ca29 [ 2147.005820][T25271] RDX: 00000000200eb100 RSI: 0000000020000100 RDI: 0000000000000002 [ 2147.085553][T25271] RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2147.093539][T25271] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 2147.101541][T25271] R13: 0000000000000c5a R14: 00000000004ca2fd R15: 00007efddc9cf6d4 [ 2147.147633][T25280] batman_adv: batadv0: Not using interface macvtap776 (retrying later): interface not active 22:44:03 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) setsockopt$inet_sctp_SCTP_INITMSG(r2, 0x84, 0x2, &(0x7f0000000040)={0x400, 0x800, 0xc9, 0x400}, 0x8) close(r0) r3 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2147.402739][T25294] batman_adv: batadv0: Adding interface: macvtap777 [ 2147.459894][T25294] batman_adv: batadv0: The MTU of interface macvtap777 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2147.546428][T25294] batman_adv: batadv0: Not using interface macvtap777 (retrying later): interface not active 22:44:04 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r1, 0x993d17e43a303f9, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) r4 = syz_genetlink_get_family_id$SEG6(&(0x7f0000000080)='SEG6\x00') sendmsg$SEG6_CMD_GET_TUNSRC(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000100)={&(0x7f0000000280)=ANY=[@ANYBLOB='(\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="04002bbd7000ffdbdf777e598c280e2c7400fccf80f561000000fee15800345b4e15000000000000000000002df0b5c79666806e8250dae7f01cc10417818d95c5efcf757b3b0b111157aa00acc3106c39fec336d1c85bda0e1b883e9217724fa8e88e368a682eb43705c977abb1014de993f37d85e127226759b77109949b3af9050950d30bbc2951042df7ee75d240fcac23114034ec6a7ca325b00ee15de28a8b295eca74"], 0x28}, 0x1, 0x0, 0x0, 0x8080}, 0x884) 22:44:04 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xfa010000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:04 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(0x0, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:04 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) openat$loop_ctrl(0xffffffffffffff9c, &(0x7f0000000040)='/dev/loop-control\x00', 0x80, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2147.871637][T25309] batman_adv: batadv0: Adding interface: macvtap778 [ 2147.895086][T25309] batman_adv: batadv0: The MTU of interface macvtap778 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:04 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2147.967173][T25309] batman_adv: batadv0: Not using interface macvtap778 (retrying later): interface not active 22:44:04 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:04 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x7c3}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:04 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$SNDRV_SEQ_IOCTL_SET_QUEUE_INFO(r2, 0xc08c5335, &(0x7f0000000080)={0x8, 0x11, 0x1, 'queue0\x00', 0x5}) bind$tipc(0xffffffffffffffff, &(0x7f0000000040)=@nameseq={0x1e, 0x1, 0x1, {0x1, 0x1, 0x3}}, 0x10) r3 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2148.178323][T25321] batman_adv: batadv0: Adding interface: macvtap779 22:44:04 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2148.220616][T25321] batman_adv: batadv0: The MTU of interface macvtap779 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2148.356459][T25321] batman_adv: batadv0: Not using interface macvtap779 (retrying later): interface not active 22:44:04 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:04 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xfac10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:04 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000040)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) r5 = fcntl$dupfd(r4, 0x0, r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$inet6_tcp(0xa, 0x1, 0x0) r7 = fcntl$dupfd(r6, 0x0, r6) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x400200) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x400200) setns(r3, 0x10000000) r8 = socket$inet6_tcp(0xa, 0x1, 0x0) r9 = fcntl$dupfd(r8, 0x0, r8) ioctl$PERF_EVENT_IOC_ENABLE(r9, 0x8912, 0x400200) bpf$BPF_GET_MAP_INFO(0xf, &(0x7f0000000080)={r9, 0x28, &(0x7f0000000000)={0x0, 0x0}}, 0x10) bpf$BPF_MAP_GET_FD_BY_ID(0xe, &(0x7f00000000c0)={r10, 0xfffffffa, 0x10}, 0xc) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:05 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(0x0, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:05 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2148.782619][T25349] batman_adv: batadv0: Adding interface: macvtap780 [ 2148.810306][T25349] batman_adv: batadv0: The MTU of interface macvtap780 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2148.891789][T25349] batman_adv: batadv0: Not using interface macvtap780 (retrying later): interface not active 22:44:05 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x900}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:05 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:05 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x406, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$ION_IOC_HEAP_QUERY(r3, 0xc0184908, &(0x7f00000000c0)={0x34, 0x0, &(0x7f0000000080)}) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000040)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2149.057825][T25361] batman_adv: batadv0: Adding interface: macvtap781 [ 2149.091719][T25361] batman_adv: batadv0: The MTU of interface macvtap781 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:05 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:05 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2149.200994][T25361] batman_adv: batadv0: Not using interface macvtap781 (retrying later): interface not active 22:44:05 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xfbc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:05 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:05 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:05 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) pipe(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$VIDIOC_ENUM_DV_TIMINGS(r2, 0xc0945662, &(0x7f0000000480)={0x80000001, 0x0, [], {0x0, @reserved}}) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = fcntl$dupfd(r3, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) r5 = syz_genetlink_get_family_id$ipvs(&(0x7f00000000c0)='IPVS\x00') r6 = socket$inet6_tcp(0xa, 0x1, 0x0) r7 = fcntl$dupfd(r6, 0x0, r6) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x400200) r8 = socket$inet6_tcp(0xa, 0x1, 0x0) r9 = fcntl$dupfd(r8, 0x0, r8) ioctl$PERF_EVENT_IOC_ENABLE(r9, 0x8912, 0x400200) getsockopt$inet6_IPV6_XFRM_POLICY(0xffffffffffffffff, 0x29, 0x23, &(0x7f0000000280)={{{@in6=@loopback, @in=@local, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@private1}, 0x0, @in=@multicast1}}, &(0x7f0000000200)=0xe8) ioctl$sock_inet6_SIOCSIFADDR(r7, 0x8916, &(0x7f0000000380)={@remote, 0x14, r10}) sendmsg$IPVS_CMD_GET_SERVICE(r4, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000180)={&(0x7f0000000540)=ANY=[@ANYBLOB="80000000", @ANYRES16=r5, @ANYBLOB="00022db57000fbbadf25040000005000018008000b0073697000090006000c0007fa11000f005afdd877b2e38fecaaed8ff9852000000000777272001400030002000d000c000380847f000500ac1e0101080005000100000008009e85e9707141b299593ba7a51a0e04323a077daf8178ef8d00010000000000000012623fa51934da1201d9978526d50e39afcd8c2192d3"], 0x80}, 0x1, 0x0, 0x0, 0x811}, 0x8001) [ 2149.504248][T25391] batman_adv: batadv0: Adding interface: macvtap782 22:44:05 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x9000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2149.547750][T25391] batman_adv: batadv0: The MTU of interface macvtap782 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2149.644385][T25391] batman_adv: batadv0: Not using interface macvtap782 (retrying later): interface not active [ 2149.856035][T25413] batman_adv: batadv0: Adding interface: macvtap783 [ 2149.862817][T25413] batman_adv: batadv0: The MTU of interface macvtap783 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2149.889341][T25413] batman_adv: batadv0: Not using interface macvtap783 (retrying later): interface not active 22:44:06 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x0, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:06 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:06 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x4000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:06 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:06 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) r4 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000080)='nl80211\x00') r5 = socket$nl_route(0x10, 0x3, 0x0) r6 = socket$netlink(0x10, 0x3, 0x0) r7 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r6, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000004c0)=ANY=[@ANYBLOB="4800000010000d07cdd87d345d28000000000a00", @ANYRES32=r8, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r5, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="740000002400070500"/20, @ANYRES32=r8, @ANYBLOB="00000000ffffffff0000000008000100736671"], 0x74}}, 0x0) r9 = fcntl$dupfd(r3, 0x406, 0xffffffffffffffff) ioctl$TUNSETIFF(r9, 0x400454ca, &(0x7f00000002c0)={'sit0\x00', 0x10}) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000600)=ANY=[@ANYBLOB="840000006400010700"/20, @ANYRES32=r8, @ANYBLOB="000800800000000003000000080001"], 0x84}}, 0x0) sendmsg$NL80211_CMD_GET_MPP(r3, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x820004}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x74, r4, 0x2, 0x70bd28, 0x25dfdbff, {}, [@NL80211_ATTR_WDEV={0xc, 0x99, {0x8000, 0x2}}, @NL80211_ATTR_MPATH_NEXT_HOP={0xa, 0x1a, @broadcast}, @NL80211_ATTR_WIPHY={0x8, 0x1, 0x2}, @NL80211_ATTR_WIPHY={0x8, 0x1, 0x3}, @NL80211_ATTR_MAC={0xa, 0x6, @random="00383dee5993"}, @NL80211_ATTR_WDEV={0xc, 0x99, {0x10000, 0x1}}, @NL80211_ATTR_MAC={0xa, 0x6, @broadcast}, @NL80211_ATTR_IFINDEX={0x8, 0x3, r8}, @NL80211_ATTR_MPATH_NEXT_HOP={0xa}]}, 0x74}, 0x1, 0x0, 0x0, 0x841}, 0x20) 22:44:06 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xfc030000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2150.164650][T25423] batman_adv: batadv0: Adding interface: macvtap784 22:44:06 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:06 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2150.210241][T25423] batman_adv: batadv0: The MTU of interface macvtap784 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2150.330742][T25423] batman_adv: batadv0: Not using interface macvtap784 (retrying later): interface not active 22:44:06 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:06 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2150.376357][T25433] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. [ 2150.475331][T25439] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.1'. 22:44:06 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000040)='/dev/net/tun\x00', 0x82c01, 0x0) close(r0) socket$kcm(0x2b, 0x1, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000000)={'vlan1\x00', 0x400}) r2 = fcntl$dupfd(r1, 0x0, r1) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = fcntl$dupfd(r3, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) ioctl$SNDRV_PCM_IOCTL_HW_FREE(r4, 0x4112, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x2) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2150.549251][T25453] batman_adv: batadv0: Adding interface: macvtap785 22:44:06 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xd000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2150.577815][T25453] batman_adv: batadv0: The MTU of interface macvtap785 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2150.700042][T25453] batman_adv: batadv0: Not using interface macvtap785 (retrying later): interface not active 22:44:07 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:07 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x9000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:07 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x6400}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:07 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xe000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:07 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xfcc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2151.035058][T25476] batman_adv: batadv0: Adding interface: macvtap786 [ 2151.067344][T25476] batman_adv: batadv0: The MTU of interface macvtap786 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:07 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xf000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2151.185677][T25476] batman_adv: batadv0: Not using interface macvtap786 (retrying later): interface not active 22:44:07 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:07 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xfdc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:07 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:07 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0xc307}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:08 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x11000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2151.617919][T25500] batman_adv: batadv0: Adding interface: macvtap787 [ 2151.649822][T25500] batman_adv: batadv0: The MTU of interface macvtap787 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:08 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2151.816287][T25500] batman_adv: batadv0: Not using interface macvtap787 (retrying later): interface not active 22:44:08 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x0, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:08 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x12000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:08 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x400000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:08 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xd000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2152.044877][T25517] batman_adv: batadv0: Adding interface: macvtap788 22:44:08 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x13000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2152.101180][T25517] batman_adv: batadv0: The MTU of interface macvtap788 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:08 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xe000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2152.277311][T25517] batman_adv: batadv0: Not using interface macvtap788 (retrying later): interface not active 22:44:08 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xfe030000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:08 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xf000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:08 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x14000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:08 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x15000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2152.600284][T25548] batman_adv: batadv0: Adding interface: macvtap789 22:44:09 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x11000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2152.627936][T25548] batman_adv: batadv0: The MTU of interface macvtap789 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:09 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x12000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2152.801985][T25548] batman_adv: batadv0: Not using interface macvtap789 (retrying later): interface not active 22:44:09 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:09 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x16000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:09 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x3000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2153.064669][T25563] batman_adv: batadv0: Adding interface: macvtap790 22:44:09 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x17000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2153.093541][T25563] batman_adv: batadv0: The MTU of interface macvtap790 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:09 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x13000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2153.193434][T25563] batman_adv: batadv0: Not using interface macvtap790 (retrying later): interface not active 22:44:09 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xfec10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:09 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x14000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:09 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x18000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2153.495280][T25586] batman_adv: batadv0: Adding interface: macvtap791 [ 2153.550553][T25586] batman_adv: batadv0: The MTU of interface macvtap791 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:10 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x19000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:10 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x15000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2153.686485][T25586] batman_adv: batadv0: Not using interface macvtap791 (retrying later): interface not active [ 2153.792958][T25597] batman_adv: batadv0: Adding interface: macvtap792 [ 2153.816323][T25597] batman_adv: batadv0: The MTU of interface macvtap792 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:10 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x8000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:10 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2153.993631][T25597] batman_adv: batadv0: Not using interface macvtap792 (retrying later): interface not active 22:44:10 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:10 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x16000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:10 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xfeff0000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:10 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:10 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x17000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2154.341281][T25623] batman_adv: batadv0: Adding interface: macvtap793 [ 2154.363970][T25623] batman_adv: batadv0: The MTU of interface macvtap793 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2154.503812][T25623] batman_adv: batadv0: Not using interface macvtap793 (retrying later): interface not active 22:44:11 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x9000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:11 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:11 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x18000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2154.688719][T25636] batman_adv: batadv0: Adding interface: macvtap794 [ 2154.736422][T25636] batman_adv: batadv0: The MTU of interface macvtap794 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:11 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:11 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:11 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x19000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2154.921899][T25636] batman_adv: batadv0: Not using interface macvtap794 (retrying later): interface not active 22:44:11 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xff0f0000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:11 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:11 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:11 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x10000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:11 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:11 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2155.303056][T25666] batman_adv: batadv0: Adding interface: macvtap795 [ 2155.326693][T25666] batman_adv: batadv0: The MTU of interface macvtap795 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2155.496187][T25666] batman_adv: batadv0: Not using interface macvtap795 (retrying later): interface not active 22:44:11 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x20000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:11 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:12 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xff7f0000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:12 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:12 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:12 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x21000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2155.865340][T25696] batman_adv: batadv0: Adding interface: macvtap796 [ 2155.880166][T25696] batman_adv: batadv0: The MTU of interface macvtap796 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:12 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x22000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:12 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2156.027543][T25696] batman_adv: batadv0: Not using interface macvtap796 (retrying later): interface not active 22:44:12 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x64000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:12 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xffc10300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:12 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x1f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:12 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x23000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:12 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x20000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2156.456919][T25723] batman_adv: batadv0: Adding interface: macvtap797 22:44:12 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x24000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2156.535065][T25723] batman_adv: batadv0: The MTU of interface macvtap797 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2156.647922][T25723] batman_adv: batadv0: Not using interface macvtap797 (retrying later): interface not active 22:44:13 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x21000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:13 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x25000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:13 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2156.825080][T25740] batman_adv: batadv0: Adding interface: macvtap798 [ 2156.867950][T25740] batman_adv: batadv0: The MTU of interface macvtap798 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2156.950354][T25740] batman_adv: batadv0: Not using interface macvtap798 (retrying later): interface not active 22:44:13 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x26000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:13 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x22000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:13 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0xc3070000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:13 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xffff0300, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:13 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x23000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:13 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x27000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2157.337195][T25765] batman_adv: batadv0: Adding interface: macvtap799 [ 2157.377397][T25765] batman_adv: batadv0: The MTU of interface macvtap799 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:13 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x28000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:13 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x24000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2157.517831][T25765] batman_adv: batadv0: Not using interface macvtap799 (retrying later): interface not active 22:44:14 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:14 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x29000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:14 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x25000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2157.754256][T25782] batman_adv: batadv0: Adding interface: macvtap800 [ 2157.784616][T25782] batman_adv: batadv0: The MTU of interface macvtap800 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:14 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x1000000000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2158.037036][T25782] batman_adv: batadv0: Not using interface macvtap800 (retrying later): interface not active 22:44:14 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:14 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xffffa888, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:14 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x26000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2158.352121][T25809] batman_adv: batadv0: Adding interface: macvtap801 22:44:14 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:14 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x27000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2158.382104][T25809] batman_adv: batadv0: The MTU of interface macvtap801 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2158.564261][T25809] batman_adv: batadv0: Not using interface macvtap801 (retrying later): interface not active 22:44:15 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x28000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:15 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:15 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xfffff000, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:15 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:15 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x40000000000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:15 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:15 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x29000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2159.020849][T25835] batman_adv: batadv0: Adding interface: macvtap802 [ 2159.060644][T25835] batman_adv: batadv0: The MTU of interface macvtap802 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2159.203377][T25835] batman_adv: batadv0: Not using interface macvtap802 (retrying later): interface not active 22:44:15 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:15 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2159.383113][T25853] batman_adv: batadv0: Adding interface: macvtap803 [ 2159.418028][T25853] batman_adv: batadv0: The MTU of interface macvtap803 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:15 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:15 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2159.565696][T25853] batman_adv: batadv0: Not using interface macvtap803 (retrying later): interface not active 22:44:16 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:16 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xffffff7f, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:16 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x300000000000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:16 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x30000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:16 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2159.969511][T25875] batman_adv: batadv0: Adding interface: macvtap804 [ 2160.028544][T25875] batman_adv: batadv0: The MTU of interface macvtap804 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:16 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x31000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2160.134051][T25875] batman_adv: batadv0: Not using interface macvtap804 (retrying later): interface not active [ 2160.303892][T25892] batman_adv: batadv0: Adding interface: macvtap805 22:44:16 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x32000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2160.352990][T25892] batman_adv: batadv0: The MTU of interface macvtap805 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:16 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:16 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x800000000000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2160.463268][T25892] batman_adv: batadv0: Not using interface macvtap805 (retrying later): interface not active 22:44:17 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xffffff9e, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:17 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:17 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:17 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x33000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2160.832924][T25914] batman_adv: batadv0: Adding interface: macvtap806 22:44:17 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2160.871135][T25914] batman_adv: batadv0: The MTU of interface macvtap806 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:17 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x34000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2161.015962][T25914] batman_adv: batadv0: Not using interface macvtap806 (retrying later): interface not active [ 2161.193133][T25930] batman_adv: batadv0: Adding interface: macvtap807 22:44:17 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x35000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2161.220054][T25930] batman_adv: batadv0: The MTU of interface macvtap807 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:17 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x30000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2161.354194][T25930] batman_adv: batadv0: Not using interface macvtap807 (retrying later): interface not active 22:44:17 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x36000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:17 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x900000000000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:17 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xffffffc3, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:17 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x31000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:18 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2161.753749][T25952] batman_adv: batadv0: Adding interface: macvtap808 22:44:18 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x37000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:18 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x1000000000000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:18 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x32000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2161.806472][T25952] batman_adv: batadv0: The MTU of interface macvtap808 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2161.953229][T25952] batman_adv: batadv0: Not using interface macvtap808 (retrying later): interface not active 22:44:18 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x38000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:18 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x33000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2162.197359][T25979] batman_adv: batadv0: Adding interface: macvtap809 [ 2162.257783][T25979] batman_adv: batadv0: The MTU of interface macvtap809 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:18 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x34000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:18 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x39000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2162.410882][T25979] batman_adv: batadv0: Not using interface macvtap809 (retrying later): interface not active 22:44:18 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0x6400000000000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:18 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xffffffe4, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:18 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x35000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:18 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:19 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2162.754927][T26002] batman_adv: batadv0: Adding interface: macvtap810 22:44:19 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2162.810664][T26002] batman_adv: batadv0: The MTU of interface macvtap810 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:19 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x36000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2162.914187][T26002] batman_adv: batadv0: Not using interface macvtap810 (retrying later): interface not active 22:44:19 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:19 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x37000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:19 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0xc307000000000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2163.076192][T26025] batman_adv: batadv0: Adding interface: macvtap811 [ 2163.090677][T26025] batman_adv: batadv0: The MTU of interface macvtap811 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:19 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x38000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2163.260833][T26025] batman_adv: batadv0: Not using interface macvtap811 (retrying later): interface not active 22:44:19 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:19 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xfffffff0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:19 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:19 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2163.612445][T26049] batman_adv: batadv0: Adding interface: macvtap812 22:44:20 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x39000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2163.637914][T26049] batman_adv: batadv0: The MTU of interface macvtap812 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2163.794194][T26049] batman_adv: batadv0: Not using interface macvtap812 (retrying later): interface not active 22:44:20 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:20 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2164.014992][T26065] batman_adv: batadv0: Adding interface: macvtap813 22:44:20 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x40000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2164.056527][T26065] batman_adv: batadv0: The MTU of interface macvtap813 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:20 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2164.160494][T26065] batman_adv: batadv0: Not using interface macvtap813 (retrying later): interface not active 22:44:20 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000, 0xffffffff00000000}, 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:20 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0xffffffff, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:20 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:20 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x41000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:20 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0x0, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2164.529765][T26087] batman_adv: batadv0: Adding interface: macvtap814 [ 2164.570970][T26087] batman_adv: batadv0: The MTU of interface macvtap814 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:21 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x42000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:21 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2164.658247][T26087] batman_adv: batadv0: Not using interface macvtap814 (retrying later): interface not active 22:44:21 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x43000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2164.958988][T26107] batman_adv: batadv0: Adding interface: macvtap815 22:44:21 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2165.002445][T26107] batman_adv: batadv0: The MTU of interface macvtap815 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2165.122376][T26107] batman_adv: batadv0: Not using interface macvtap815 (retrying later): interface not active 22:44:21 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0xf, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:21 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x44000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:21 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x3}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:21 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x3f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:21 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x10, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:21 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0x0, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:21 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x45000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:22 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x40000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:22 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x25, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:22 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x46000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2165.812773][T26152] netlink: 5 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2165.906322][T26155] netlink: 5 bytes leftover after parsing attributes in process `syz-executor.4'. 22:44:22 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x41000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:22 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x48, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:22 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x47000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:22 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x42000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:22 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x8}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:22 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0xc0, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:22 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0x0, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:22 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0xec0, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:22 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x48000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:22 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x43000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:23 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x44000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:23 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x33fe0, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:23 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x49000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:23 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x20000444, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:23 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x45000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:23 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:23 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x9}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:23 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x46000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:23 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x0) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:23 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x7ffff000, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:23 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:24 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x47000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:24 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x2, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:24 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:24 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x48000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:24 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x3, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:24 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x49000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:24 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:24 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x10}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:24 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x4, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:24 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x0) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:24 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x5, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:24 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:25 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:25 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x6, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:25 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:25 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:25 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x7, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:25 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x50000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:25 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x8, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:25 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x64}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:25 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:25 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x0) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:25 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x9, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:25 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x51000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:25 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:26 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0xa, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:26 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x52000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:26 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) r5 = fcntl$dupfd(r4, 0x0, r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r5, 0xc02064b2, &(0x7f0000000040)={0xffff018b, 0x7, 0xc70, 0x4, 0x0}) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r3, 0xc00464b4, &(0x7f0000000080)={r6}) 22:44:26 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:26 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x53000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:26 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0xb, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:26 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:26 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @dev={[], 0x32}}) 22:44:26 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x0, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:26 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x54000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:26 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0xc, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:26 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x300}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:26 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x2) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:27 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0xd, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:27 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x55000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:27 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x0, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:27 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x50000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:27 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$ion(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ion\x00', 0x2, 0x0) ioctl$FS_IOC_FSGETXATTR(r2, 0x801c581f, &(0x7f0000000080)={0x5, 0x7fff, 0x74, 0x4, 0x8}) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) semget$private(0x0, 0x0, 0x183) 22:44:27 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0xe, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:27 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x0, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:27 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x56000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:27 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) r2 = add_key(&(0x7f0000000040)='dns_resolver\x00', &(0x7f0000000080)={'syz', 0x0}, &(0x7f00000000c0)="ea406f66168d6af21c9d690e3fd35607c3b5c0794544b00ac1d708a9470b656c308e4521a5872907ead94ca6ada2ffae187d39ed98e34233a66ff8f634e83e78112a64775408b4c13028aed1513dddd1743816ab3750ab05b55e6ae40f02968a393b273ce9c42f2e42b6", 0x6a, 0xfffffffffffffffa) keyctl$KEYCTL_PKEY_ENCRYPT(0x19, &(0x7f0000000140)={r2, 0xe8, 0x7b}, &(0x7f0000000180)={'enc=', 'pkcs1', ' hash=', {'sha384-ssse3\x00'}}, &(0x7f0000000280)="ad9ee90875e46c3d5c62f32d8bd2273626a6feff8bd94b99abf68f44b23440637e11e487c6b936bf3998920aeae06b13332a161b2ef9444455710d71ed4419f3af9d950ee7bb33bb762f3e1cfcfd39acea0e201f9d257584fc2c992e891c892b583aff6943cf03f4a50781200fd2cba590597381be62db5de6fa743729bee114b1e5fee5fddc7e529cc9419263762e050fb41fe3d1e8d578281a21478df24fc7a6ee62451180360baf120851da12fb77a9f7bbdd50dfce8389af1cff76e88fe789269de5e2ac18e60c80f8d21feedf41b5ccc8eb5cbc3e7ac044d2d49f9a2d0a657c85afd415b908", &(0x7f0000000380)=""/123) 22:44:27 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x51000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:27 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x7c3}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:27 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$kcm(0x2b, 0x1, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:27 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0xf, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:27 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x52000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:27 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:27 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x57000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:27 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = add_key$keyring(&(0x7f0000000140)='keyring\x00', &(0x7f0000000200)={'syz'}, 0x0, 0x0, 0xffffffffffffffff) r2 = add_key$keyring(&(0x7f0000000100)='keyring\x00', &(0x7f0000000040)={'syz', 0x3}, 0x0, 0x0, r1) r3 = add_key$keyring(&(0x7f0000000000)='keyring\x00', &(0x7f00000000c0)={'syz', 0x3}, 0x0, 0x0, r2) keyctl$KEYCTL_MOVE(0x1e, r3, r1, r2, 0x0) r4 = add_key$keyring(&(0x7f0000000080)='keyring\x00', &(0x7f00000000c0)={'syz', 0x0}, 0x0, 0x0, r1) r5 = add_key$user(&(0x7f0000000540)='user\x00', &(0x7f0000000340)={'syz', 0x0}, &(0x7f0000000100), 0x26, 0xfffffffffffffffe) r6 = add_key$user(&(0x7f00000000c0)='user\x00', &(0x7f0000000440)={'syz', 0x3}, &(0x7f0000000240)="21b6c37d0971a9fa92e85d6bf013fb54b11f15e6dfc611221e807b5334fb9d59df36b110b8583f9e2398867cf8a0f3b64f24b0765c04d34dc03895703c6d36f30e0ae300d1c9721591fdb70237fbfcdf0fd443674876b3a68539a8669a4c72f90fee42c15d82a709895c31c4500a8164b66aa267e1633ed1209d3cc641f219f364f9b37b35b11db10d085658a017f3c221f9", 0x92, 0xfffffffffffffffe) r7 = add_key$user(&(0x7f00000000c0)='user\x00', &(0x7f0000000440)={'syz'}, &(0x7f0000000380)='X', 0x1, 0xfffffffffffffffe) keyctl$dh_compute(0x17, &(0x7f0000000040)={r5, r7, r6}, &(0x7f0000000140)=""/8, 0x8, &(0x7f0000000080)={&(0x7f00000000c0)={'blake2s-256-generic\x00'}}) keyctl$KEYCTL_RESTRICT_KEYRING(0x1d, r4, &(0x7f0000000100)='dns_resolver\x00', &(0x7f0000000140)=@chain={'key_or_keyring:', r5, ':chain\x00'}) r8 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r8, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000040)={'veth0_vlan\x00', @multicast}) 22:44:27 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x11, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:28 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x58000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:28 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = syz_open_dev$audion(&(0x7f0000000040)='/dev/audio#\x00', 0xfffffffffffffffb, 0x2000) ioctl$SIOCSIFHWADDR(r2, 0x8924, &(0x7f0000000080)={'sit0\x00', @remote}) 22:44:28 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:28 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x53000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:28 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x59000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:28 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x12, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:28 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x900}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:28 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x54000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:28 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:28 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = openat$ttyprintk(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyprintk\x00', 0x10102, 0x0) ioctl$TCSETA(r1, 0x5406, &(0x7f0000000080)={0x2, 0x1000, 0xd6, 0x7, 0x15, "76f7e4506c44d167"}) r2 = socket$kcm(0x2b, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = epoll_create1(0x0) r4 = epoll_create1(0x0) close(r3) epoll_ctl$EPOLL_CTL_ADD(r4, 0x1, r3, &(0x7f0000c85000)) epoll_ctl$EPOLL_CTL_MOD(r4, 0x3, r3, &(0x7f0000f2cff4)={0x77540947ad9a168d}) fstat(r3, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x0, 0x0}) r6 = dup2(0xffffffffffffffff, 0xffffffffffffffff) getsockopt$inet_IP_IPSEC_POLICY(r6, 0x0, 0x10, &(0x7f0000000400)={{{@in6=@local, @in=@multicast2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@initdev}, 0x0, @in6=@remote}}, &(0x7f00000000c0)=0xe8) r8 = socket$nl_route(0x10, 0x3, 0x0) getsockopt$sock_cred(r8, 0x1, 0x11, &(0x7f0000000040)={0x0, 0x0, 0x0}, &(0x7f0000000080)=0xc) setresgid(r9, 0x0, 0x0) write$P9_RGETATTR(r6, &(0x7f0000000340)={0xa0, 0x19, 0x1, {0x400, {0x2, 0x0, 0x1}, 0x88, r7, r9, 0x1, 0x3, 0xf0b, 0x400, 0x100, 0x0, 0x10fffffe, 0x92b, 0x0, 0x1, 0xfb, 0x4, 0x42c4, 0x2, 0x3f}}, 0xa0) setsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f00000001c0)={0x0, r5, r9}, 0xc) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:28 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x14, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:28 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:28 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x55000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:28 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:28 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x0, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:29 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x25, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:29 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x56000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:29 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) ftruncate(r0, 0x0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:29 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x4000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:29 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:29 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x0, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:29 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x2f, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:29 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000c00)={0x0, 0x0, &(0x7f0000000bc0)={&(0x7f0000000200)={{0x14, 0x606}, [], {0x14}}, 0x28}}, 0x0) sendmsg$NFQNL_MSG_CONFIG(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x2, 0x3, 0x201, 0x0, 0x0, {0x7, 0x0, 0x2}, [@NFQA_CFG_MASK={0x8}, @NFQA_CFG_CMD={0x8, 0x1, {0x0, 0x0, 0x5}}, @NFQA_CFG_QUEUE_MAXLEN={0x8, 0x3, 0x1, 0x0, 0x2}, @NFQA_CFG_PARAMS={0x9, 0x2, {0x40}}, @NFQA_CFG_MASK={0x8}, @NFQA_CFG_MASK={0x8, 0x4, 0x1, 0x0, 0x30}, @NFQA_CFG_PARAMS={0x9, 0x2, {0x1, 0x1}}, @NFQA_CFG_CMD={0x8, 0x1, {0x3, 0x0, 0xa}}]}, 0x5c}, 0x1, 0x0, 0x0, 0x4094}, 0x8040) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:29 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x57000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:29 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x48, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:29 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x20002, 0x0) r1 = gettid() tkill(r1, 0x1000000000013) r2 = syz_open_procfs(r1, &(0x7f0000001300)='net/sockstat\x00') bpf$MAP_UPDATE_BATCH(0x1a, &(0x7f0000001340)={&(0x7f0000000080)="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", &(0x7f0000000180)=""/240, &(0x7f0000000280)="cc00070d4ec80787722467122840ccbb175c00118998d20026d8d8160d1bcdce67809b88f32b345b06e859e7c8a22167fa9125d861932e18c8d0fe9524b5faa75fae89485facb1b6062d050facbd9c6a4800e45c63edf46444b7bf25efa3899d49339b770dc58b6a52a9bf3529a30e2fa9050e466066eae8", &(0x7f0000000300)="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", 0x809a, r2}, 0x38) close(r0) r3 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000040)={'ip6tnl0\x00', @multicast}) 22:44:29 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x0, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:29 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x63, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:29 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:29 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x58000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:30 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x6400}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:30 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x73, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:30 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x59000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:30 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:30 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:30 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:30 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:32 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:32 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x7c2, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:32 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:32 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:32 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0xc307}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:33 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) openat$sequencer(0xffffffffffffff9c, &(0x7f0000000040)='/dev/sequencer\x00', 0x8002, 0x0) pipe(&(0x7f0000000180)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) r7 = socket$inet_udp(0x2, 0x2, 0x0) writev(r4, &(0x7f0000000200)=[{&(0x7f00000000c0)="580000001400ad", 0x7}], 0x1) write$binfmt_elf64(r4, &(0x7f00000004c0)=ANY=[@ANYBLOB="edbfd8bbf53a27b18901"], 0xa) close(r7) socket$netlink(0x10, 0x3, 0xf) write(0xffffffffffffffff, &(0x7f0000000080)="fc0000001c000725ab0925000900070007ab08000800000081006193210001c000000001000000000000000000039815fa2c1ec28656aaa79bb94b467e0000000a000200035a0201856c256f1a272fdf0d11512f3cadd44000000000008934d05cd3f3187a617cd5000000000000002c05defd5a32e2ab8207000000ec18444ef92e475bba4a463ae4f5566f91cf190201ded815b2ccd243fa7ded94e0ad91bd0734ba3fcd8a57d47689cd3dd16b17e583df150c3b880f411f46a60467b4d5715587027177", 0xc5) writev(r4, &(0x7f0000000600)=[{&(0x7f0000000380)="f98ac693ce6908", 0x7}], 0x1) 22:44:33 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x60000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:33 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0xc88, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:33 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:33 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:33 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x400000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:33 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x5, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:33 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0xea0, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:33 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x61000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:33 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:33 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, 0x0, 0x0) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:33 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x8000, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:33 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:33 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x402, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:33 executing program 1: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:33 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x62000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:33 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, 0x0, 0x0) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:33 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x3000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:34 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x5f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:34 executing program 1: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(0xffffffffffffffff, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:34 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x403, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:34 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x63000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:34 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, 0x0, 0x0) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2177.936126][T26699] batman_adv: batadv0: Adding interface: macvtap816 22:44:34 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x60000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2177.961538][T26699] batman_adv: batadv0: The MTU of interface macvtap816 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:34 executing program 1: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, 0x0, 0x0) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:34 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:34 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x64000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2178.124251][T26699] batman_adv: batadv0: Not using interface macvtap816 (retrying later): interface not active 22:44:34 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x61000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:34 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x8000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:34 executing program 1: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x0, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2178.347581][T26726] batman_adv: batadv0: Adding interface: macvtap817 22:44:34 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x65000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2178.421069][T26726] batman_adv: batadv0: The MTU of interface macvtap817 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:34 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x62000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2178.591639][T26726] batman_adv: batadv0: Not using interface macvtap817 (retrying later): interface not active 22:44:35 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x405, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:35 executing program 1: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x0, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:35 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x66000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:35 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x63000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2178.965416][T26753] batman_adv: batadv0: Adding interface: macvtap818 22:44:35 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2179.002497][T26753] batman_adv: batadv0: The MTU of interface macvtap818 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:35 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x62000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:35 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x67000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:35 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x64000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2179.136037][T26753] batman_adv: batadv0: Not using interface macvtap818 (retrying later): interface not active 22:44:35 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x9000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:35 executing program 1: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x0, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:35 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x68000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2179.422445][T26782] batman_adv: batadv0: Adding interface: macvtap819 22:44:35 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x65000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2179.464460][T26782] batman_adv: batadv0: The MTU of interface macvtap819 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2179.619822][T26782] batman_adv: batadv0: Not using interface macvtap819 (retrying later): interface not active 22:44:36 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x406, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:36 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x56000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:36 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x66000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:36 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x69000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:36 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:36 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x407, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:36 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x67000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:36 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:36 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x10000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2180.308008][T26823] batman_adv: batadv0: Adding interface: macvtap820 22:44:36 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2180.345723][T26823] batman_adv: batadv0: The MTU of interface macvtap820 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:36 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:36 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x68000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2180.543238][T26823] batman_adv: batadv0: Not using interface macvtap820 (retrying later): interface not active 22:44:36 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(0xffffffffffffffff, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:37 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x408, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:37 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:37 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x69000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:37 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:37 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:37 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x409, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:37 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2181.229045][T26876] batman_adv: batadv0: Adding interface: macvtap821 [ 2181.266509][T26876] batman_adv: batadv0: The MTU of interface macvtap821 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2181.358089][T26876] batman_adv: batadv0: Not using interface macvtap821 (retrying later): interface not active 22:44:37 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x64000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:37 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:37 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) socket$kcm(0x2b, 0x1, 0x0) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:37 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:37 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(0xffffffffffffffff, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:37 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x40a, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:38 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) socket$kcm(0x2b, 0x1, 0x0) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:38 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:38 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x40f, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:38 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:38 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0xc3070000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:38 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) socket$kcm(0x2b, 0x1, 0x0) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:38 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2182.024290][T26914] batman_adv: batadv0: Adding interface: macvtap822 [ 2182.080272][T26914] batman_adv: batadv0: The MTU of interface macvtap822 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:38 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2182.256087][T26914] batman_adv: batadv0: Not using interface macvtap822 (retrying later): interface not active 22:44:38 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x70000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:38 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2182.453076][T26939] batman_adv: batadv0: Adding interface: macvtap823 [ 2182.491869][T26939] batman_adv: batadv0: The MTU of interface macvtap823 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2182.529566][T26939] batman_adv: batadv0: Not using interface macvtap823 (retrying later): interface not active 22:44:38 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) socket$inet(0x2, 0x4000000805, 0x0) r2 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r3 = socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(0xffffffffffffffff, r2, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r2, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r2, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:38 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:39 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x1000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:39 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x71000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:39 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x410, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:39 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:39 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:39 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:39 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x72000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:39 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x414, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:39 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x40000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:39 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:39 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, 0xffffffffffffffff, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:39 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x422, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:39 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x70000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:39 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x73000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:39 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:40 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:40 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x425, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:40 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x71000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:40 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x74000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:40 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:40 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x300000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2183.946666][T27020] batman_adv: batadv0: Adding interface: macvtap824 [ 2184.015674][T27020] batman_adv: batadv0: The MTU of interface macvtap824 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:40 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x75000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2184.229230][T27020] batman_adv: batadv0: Not using interface macvtap824 (retrying later): interface not active 22:44:40 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, 0xffffffffffffffff, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:40 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x72000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:40 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x448, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:40 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:41 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x463, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:41 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:41 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x76000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:41 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x73000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2184.895827][T27060] batman_adv: batadv0: Adding interface: macvtap825 [ 2184.915137][T27060] batman_adv: batadv0: The MTU of interface macvtap825 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:41 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x77000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:41 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x74000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2185.033610][T27060] batman_adv: batadv0: Not using interface macvtap825 (retrying later): interface not active 22:44:41 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x800000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:41 executing program 1: close(0xffffffffffffffff) socket$can_bcm(0x1d, 0x2, 0x2) r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(0xffffffffffffffff, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:41 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, 0xffffffffffffffff, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:41 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:41 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x78000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:41 executing program 1: close(0xffffffffffffffff) socket$can_bcm(0x1d, 0x2, 0x2) r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(0xffffffffffffffff, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:41 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x75000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2185.568870][T27098] batman_adv: batadv0: Adding interface: macvtap826 [ 2185.611378][T27098] batman_adv: batadv0: The MTU of interface macvtap826 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:42 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x79000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2185.756811][T27098] batman_adv: batadv0: Not using interface macvtap826 (retrying later): interface not active 22:44:42 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x76000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:42 executing program 1: close(0xffffffffffffffff) socket$can_bcm(0x1d, 0x2, 0x2) r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(0xffffffffffffffff, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:42 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2186.049182][T27112] batman_adv: batadv0: Adding interface: macvtap827 [ 2186.091308][T27112] batman_adv: batadv0: The MTU of interface macvtap827 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:42 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x77000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2186.261294][T27112] batman_adv: batadv0: Not using interface macvtap827 (retrying later): interface not active 22:44:42 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x900000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:42 executing program 1: r0 = openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:42 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(0xffffffffffffffff, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:42 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x2, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:42 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:42 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x78000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:43 executing program 1: r0 = openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2186.648666][T27144] batman_adv: batadv0: Adding interface: macvtap828 22:44:43 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2186.713579][T27144] batman_adv: batadv0: The MTU of interface macvtap828 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:43 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x79000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2186.882958][T27144] batman_adv: batadv0: Not using interface macvtap828 (retrying later): interface not active 22:44:43 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:43 executing program 1: r0 = openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:43 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x3, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:43 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x1000000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:43 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:43 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(0xffffffffffffffff, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:43 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(0xffffffffffffffff) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2187.355551][T27181] batman_adv: batadv0: Adding interface: macvtap829 22:44:43 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2187.393749][T27181] batman_adv: batadv0: The MTU of interface macvtap829 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:43 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2187.535997][T27181] batman_adv: batadv0: Not using interface macvtap829 (retrying later): interface not active 22:44:44 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(0xffffffffffffffff) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2187.725917][T27205] batman_adv: batadv0: Adding interface: macvtap830 22:44:44 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2187.782276][T27205] batman_adv: batadv0: The MTU of interface macvtap830 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2187.837400][T27205] batman_adv: batadv0: Not using interface macvtap830 (retrying later): interface not active 22:44:44 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(0xffffffffffffffff) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:44 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:44 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x4, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:44 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x80000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2188.284161][T27225] batman_adv: batadv0: Adding interface: macvtap831 [ 2188.315950][T27225] batman_adv: batadv0: The MTU of interface macvtap831 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2188.392058][T27225] batman_adv: batadv0: Not using interface macvtap831 (retrying later): interface not active 22:44:44 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x6400000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:44 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:44 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:44 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(0xffffffffffffffff, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:44 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x81000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:44 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x5, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:45 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:45 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:45 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x82000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2188.748199][T27255] batman_adv: batadv0: Adding interface: macvtap832 [ 2188.800752][T27255] batman_adv: batadv0: The MTU of interface macvtap832 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2188.983288][T27255] batman_adv: batadv0: Not using interface macvtap832 (retrying later): interface not active 22:44:45 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x83000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:45 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x7f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:45 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0xc307000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:45 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2189.263600][T27278] batman_adv: batadv0: Adding interface: macvtap833 22:44:45 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x84000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2189.318243][T27278] batman_adv: batadv0: The MTU of interface macvtap833 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:45 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, 0x0, 0x0) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:45 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x80000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2189.480956][T27278] batman_adv: batadv0: Not using interface macvtap833 (retrying later): interface not active 22:44:45 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x81000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:45 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x6, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:45 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:46 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x85000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:46 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2189.889076][T27313] batman_adv: batadv0: Adding interface: macvtap834 22:44:46 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x82000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2189.937935][T27313] batman_adv: batadv0: The MTU of interface macvtap834 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:46 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x86000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2190.006844][T27313] batman_adv: batadv0: Not using interface macvtap834 (retrying later): interface not active 22:44:46 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0xffffffff00000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:46 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2190.217703][T27331] batman_adv: batadv0: Adding interface: macvtap835 [ 2190.245841][T27331] batman_adv: batadv0: The MTU of interface macvtap835 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:46 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x83000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:46 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x87000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:46 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, 0x0, 0x0) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2190.354250][T27331] batman_adv: batadv0: Not using interface macvtap835 (retrying later): interface not active 22:44:46 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x0) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:46 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x7, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:46 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x84000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:47 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb110) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2190.704895][T27360] batman_adv: batadv0: Adding interface: macvtap836 [ 2190.753881][T27360] batman_adv: batadv0: The MTU of interface macvtap836 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:47 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x85000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2190.926841][T27360] batman_adv: batadv0: Not using interface macvtap836 (retrying later): interface not active 22:44:47 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x0) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:47 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x3}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:47 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x8, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:47 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x86000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:47 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, 0x0, 0x0) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:47 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x0) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2191.545442][T27387] batman_adv: batadv0: Adding interface: macvtap837 22:44:48 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x400eb200) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2191.597202][T27387] batman_adv: batadv0: The MTU of interface macvtap837 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:48 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x87000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2191.738471][T27387] batman_adv: batadv0: Not using interface macvtap837 (retrying later): interface not active 22:44:48 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(0xffffffffffffffff, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) [ 2191.920423][T27408] batman_adv: batadv0: Adding interface: macvtap838 [ 2191.945121][T27408] batman_adv: batadv0: The MTU of interface macvtap838 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:48 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x88000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2192.081329][T27408] batman_adv: batadv0: Not using interface macvtap838 (retrying later): interface not active 22:44:48 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x8}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:48 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(0xffffffffffffffff, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:48 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x9, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:48 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}], 0x10) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:48 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x89000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:48 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(0xffffffffffffffff, 0x8924, &(0x7f0000000240)={'veth0_vlan\x00', @random="01003a1e2410"}) 22:44:48 executing program 3: 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, 0x4, @perf_config_ext={0x3}, 0x0, 0x4000000000000000, 0x0, 0x0, 0x0, 0x0, 0x402}, 0x0, 0xe, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2192.598026][T27433] batman_adv: batadv0: Adding interface: macvtap839 22:44:49 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x8a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2192.637024][T27433] batman_adv: batadv0: The MTU of interface macvtap839 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2192.687192][T27433] batman_adv: batadv0: Not using interface macvtap839 (retrying later): interface not active 22:44:49 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, 0x0) [ 2192.932635][T27451] batman_adv: batadv0: Adding interface: macvtap840 22:44:49 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x8b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2192.983598][T27451] batman_adv: batadv0: The MTU of interface macvtap840 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:49 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) openat$6lowpan_enable(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/bluetooth/6lowpan_enable\x00', 0x2, 0x0) r1 = epoll_create1(0x0) r2 = epoll_create1(0x0) close(r1) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r1, &(0x7f0000c85000)) epoll_ctl$EPOLL_CTL_MOD(r2, 0x3, r1, &(0x7f0000f2cff4)={0x77540947ad9a168d}) r3 = fcntl$dupfd(r0, 0x0, r2) write(r3, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2193.152967][T27451] batman_adv: batadv0: Not using interface macvtap840 (retrying later): interface not active 22:44:49 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x8c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:49 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x9}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:49 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, 0x0) 22:44:49 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0xa, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:49 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}], 0x10) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:49 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) close(r0) socket$can_bcm(0x1d, 0x2, 0x2) r1 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$SIOCSIFHWADDR(r0, 0x8924, 0x0) 22:44:49 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x7, 0x0, 0x0, 0x41c1, 0x80, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x80, 0x0, 0x2, 0x5, 0x4, 0x0, 0x7ad4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) r2 = add_key$user(&(0x7f0000000540)='user\x00', &(0x7f0000000340)={'syz', 0x0}, &(0x7f0000000100), 0x26, 0xfffffffffffffffe) r3 = add_key$keyring(&(0x7f0000000140)='keyring\x00', &(0x7f0000000200)={'syz'}, 0x0, 0x0, 0xffffffffffffffff) r4 = add_key$keyring(&(0x7f0000000100)='keyring\x00', &(0x7f0000000040)={'syz', 0x3}, 0x0, 0x0, r3) r5 = add_key$keyring(&(0x7f0000000000)='keyring\x00', &(0x7f00000000c0)={'syz', 0x3}, 0x0, 0x0, r4) keyctl$KEYCTL_MOVE(0x1e, r5, r3, r4, 0x0) add_key(&(0x7f00000001c0)='syzkaller\x00', &(0x7f0000000240)={'syz', 0x2}, &(0x7f0000000280)="0e6c52a0bd5ff5d1953ff8ce74c99b7ed79529c8ccd7351a9d4040f2fede4d0871b862c5d91658ff11240958e4d03891e0569f882fb2a7520351a9b72df592079fc54fa467076b3eec80d67fa277f5583c30aa1563cb0670dbed30f4e8a97002a8a26089bb87fdca818f7ccfd9", 0x6d, 0xffffffffffffffff) r6 = add_key$user(&(0x7f0000000180)='user\x00', &(0x7f0000000440)={'syz'}, &(0x7f0000000300)='\v', 0x1, r4) r7 = add_key$user(&(0x7f00000000c0)='user\x00', &(0x7f0000000440)={'syz'}, &(0x7f0000000380)='X', 0x1, 0xfffffffffffffffe) keyctl$dh_compute(0x17, &(0x7f0000000040)={r2, r7, r6}, &(0x7f0000000140)=""/8, 0x8, &(0x7f0000000080)={&(0x7f00000000c0)={'blake2s-256-generic\x00'}}) keyctl$KEYCTL_PKEY_SIGN(0x1b, &(0x7f0000000000)={r6, 0xf6, 0x17}, 0x0, &(0x7f0000000040)="9e8290b36761bc314f1db1186303cda5da04903b24e991c45cb1465651d826081fa4493f1f3b4b3a73cdbc315ea24e5099999ec3ca55f1c84d97f0b10297739957ed764ed807cdd82873c558a18b6fe9f66717c40023e0655a97fdf002b0e16504c58a182ff32c553755a7eb2bbafbbd2c925d31a08c8485bd0180063e4241ab2a8227a268d764ea55cdb12d9d851567af05e9337751367f95885ea13918464b83d7f92dc133aec41156c9a03d30089cce27afcbef8533447a94a5ca72c2c1cbc78858f4ba6350cde09f819412f943ad54dc12e5cb405227182615261f43ba8b499fcb05eeda7cdfdb27f732912ce0de4cd5e465ca6f", &(0x7f0000000140)=""/23) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2193.571950][T27483] batman_adv: batadv0: Adding interface: macvtap841 22:44:50 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x8d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2193.603757][T27483] batman_adv: batadv0: The MTU of interface macvtap841 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2193.692866][T27483] batman_adv: batadv0: Not using interface macvtap841 (retrying later): interface not active 22:44:50 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) openat$6lowpan_enable(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/bluetooth/6lowpan_enable\x00', 0x2, 0x0) r1 = epoll_create1(0x0) r2 = epoll_create1(0x0) close(r1) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r1, &(0x7f0000c85000)) epoll_ctl$EPOLL_CTL_MOD(r2, 0x3, r1, &(0x7f0000f2cff4)={0x77540947ad9a168d}) r3 = fcntl$dupfd(r0, 0x0, r2) write(r3, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2193.909566][T27501] batman_adv: batadv0: Adding interface: macvtap842 [ 2193.916259][T27501] batman_adv: batadv0: The MTU of interface macvtap842 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:50 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x8e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2194.073449][T27501] batman_adv: batadv0: Not using interface macvtap842 (retrying later): interface not active 22:44:50 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0xc, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:50 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x84000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:50 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}], 0x10) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2194.237723][T27518] batman_adv: batadv0: Adding interface: macvtap843 [ 2194.244707][T27518] batman_adv: batadv0: The MTU of interface macvtap843 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:50 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x10}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:50 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x8f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2194.427541][T27518] batman_adv: batadv0: Not using interface macvtap843 (retrying later): interface not active 22:44:51 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x90000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2194.665498][T27537] batman_adv: batadv0: Adding interface: macvtap844 22:44:51 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x80000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2194.702247][T27537] batman_adv: batadv0: The MTU of interface macvtap844 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2194.815006][T27537] batman_adv: batadv0: Not using interface macvtap844 (retrying later): interface not active 22:44:51 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x91000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:51 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0xe, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:51 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x74000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2195.102002][T27551] batman_adv: batadv0: Adding interface: macvtap845 [ 2195.110924][T27551] batman_adv: batadv0: The MTU of interface macvtap845 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:51 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2195.210870][T27551] batman_adv: batadv0: Not using interface macvtap845 (retrying later): interface not active 22:44:51 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:51 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x64}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:51 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x92000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2195.406618][T27564] batman_adv: batadv0: Adding interface: macvtap846 [ 2195.456227][T27564] batman_adv: batadv0: The MTU of interface macvtap846 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2195.586924][T27564] batman_adv: batadv0: Not using interface macvtap846 (retrying later): interface not active 22:44:52 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x93000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:52 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x10, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:52 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x91000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2195.923070][T27580] batman_adv: batadv0: Adding interface: macvtap847 [ 2195.954270][T27580] batman_adv: batadv0: The MTU of interface macvtap847 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:52 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x94000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2196.114918][T27580] batman_adv: batadv0: Not using interface macvtap847 (retrying later): interface not active 22:44:52 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:52 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x93000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2196.279887][T27592] batman_adv: batadv0: Adding interface: macvtap848 22:44:52 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x95000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2196.325462][T27592] batman_adv: batadv0: The MTU of interface macvtap848 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:52 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x93000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2196.520272][T27592] batman_adv: batadv0: Not using interface macvtap848 (retrying later): interface not active 22:44:53 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x300}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:53 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x96000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:53 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x12, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) [ 2196.815509][T27619] batman_adv: batadv0: Adding interface: macvtap849 [ 2196.877421][T27619] batman_adv: batadv0: The MTU of interface macvtap849 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:53 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x93000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:53 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x97000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2197.035281][T27619] batman_adv: batadv0: Not using interface macvtap849 (retrying later): interface not active 22:44:53 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:53 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x7c3}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2197.243563][T27633] batman_adv: batadv0: Adding interface: macvtap850 22:44:53 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x96000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:53 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x98000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2197.274758][T27633] batman_adv: batadv0: The MTU of interface macvtap850 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2197.415328][T27633] batman_adv: batadv0: Not using interface macvtap850 (retrying later): interface not active 22:44:53 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x48, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:54 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x6b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:54 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x99000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2197.703027][T27656] batman_adv: batadv0: Adding interface: macvtap851 [ 2197.737453][T27656] batman_adv: batadv0: The MTU of interface macvtap851 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:54 executing program 1: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2197.928980][T27656] batman_adv: batadv0: Not using interface macvtap851 (retrying later): interface not active 22:44:54 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x9a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:54 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x10) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2198.117608][T27668] batman_adv: batadv0: Adding interface: macvtap852 [ 2198.203830][T27668] batman_adv: batadv0: The MTU of interface macvtap852 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:54 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x9b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:54 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x9a000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2198.349590][T27668] batman_adv: batadv0: Not using interface macvtap852 (retrying later): interface not active 22:44:54 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x900}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:54 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x4a, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:54 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x9c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:55 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x58000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2198.804852][T27696] batman_adv: batadv0: Adding interface: macvtap853 22:44:55 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x9d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2198.847736][T27696] batman_adv: batadv0: The MTU of interface macvtap853 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:55 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x58000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2198.963675][T27696] batman_adv: batadv0: Not using interface macvtap853 (retrying later): interface not active 22:44:55 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x4000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:55 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x9e000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:55 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x10) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2199.178613][T27713] batman_adv: batadv0: Adding interface: macvtap854 [ 2199.219301][T27713] batman_adv: batadv0: The MTU of interface macvtap854 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:55 executing program 1: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) socket$inet(0x2, 0x2, 0x0) r4 = fcntl$dupfd(0xffffffffffffffff, 0x3, 0xffffffffffffffff) write(r4, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r5 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r5, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2199.395946][T27713] batman_adv: batadv0: Not using interface macvtap854 (retrying later): interface not active 22:44:55 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x9f000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:55 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x4c, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:56 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x50000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:56 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa0000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2199.794655][T27738] batman_adv: batadv0: Adding interface: macvtap855 [ 2199.833716][T27738] batman_adv: batadv0: The MTU of interface macvtap855 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:56 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x10) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:56 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x6400}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2199.997718][T27738] batman_adv: batadv0: Not using interface macvtap855 (retrying later): interface not active 22:44:56 executing program 1: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x0) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:56 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa1000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2200.123505][T27752] batman_adv: batadv0: Adding interface: macvtap856 [ 2200.148444][T27752] batman_adv: batadv0: The MTU of interface macvtap856 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2200.316710][T27752] batman_adv: batadv0: Not using interface macvtap856 (retrying later): interface not active 22:44:56 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x60, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:56 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa2000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2200.688484][T27775] batman_adv: batadv0: Adding interface: macvtap857 [ 2200.739164][T27775] batman_adv: batadv0: The MTU of interface macvtap857 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:57 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa3000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2200.914518][T27775] batman_adv: batadv0: Not using interface macvtap857 (retrying later): interface not active 22:44:57 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(0xffffffffffffffff, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:57 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0xc307}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:57 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x68, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:57 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4d000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:57 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa4000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2201.311327][T27799] batman_adv: batadv0: Adding interface: macvtap858 [ 2201.348511][T27799] batman_adv: batadv0: The MTU of interface macvtap858 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:57 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa3000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2201.469067][T27799] batman_adv: batadv0: Not using interface macvtap858 (retrying later): interface not active 22:44:58 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa5000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2201.712735][T27813] batman_adv: batadv0: Adding interface: macvtap859 [ 2201.745985][T27813] batman_adv: batadv0: The MTU of interface macvtap859 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:58 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x4c000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2201.894620][T27813] batman_adv: batadv0: Not using interface macvtap859 (retrying later): interface not active 22:44:58 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa6000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:58 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(0xffffffffffffffff, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:44:58 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x400000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:44:58 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x6c, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:58 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x46000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:58 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa7000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2202.326852][T27836] batman_adv: batadv0: Adding interface: macvtap860 [ 2202.372907][T27836] batman_adv: batadv0: The MTU of interface macvtap860 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2202.498777][T27836] batman_adv: batadv0: Not using interface macvtap860 (retrying later): interface not active 22:44:58 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x47000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:59 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x6e, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:44:59 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa8000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:59 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x3000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2202.904627][T27856] batman_adv: batadv0: Adding interface: macvtap861 22:44:59 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xa9000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:59 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(0xffffffffffffffff, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2202.961235][T27856] batman_adv: batadv0: The MTU of interface macvtap861 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:44:59 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x38000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2203.114711][T27856] batman_adv: batadv0: Not using interface macvtap861 (retrying later): interface not active 22:44:59 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xaa000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:44:59 executing program 1: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2203.338029][T27881] batman_adv: batadv0: Adding interface: macvtap862 [ 2203.366228][T27881] batman_adv: batadv0: The MTU of interface macvtap862 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2203.494111][T27881] batman_adv: batadv0: Not using interface macvtap862 (retrying later): interface not active 22:44:59 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xab000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:00 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x74, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:00 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x8000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2203.781664][T27897] batman_adv: batadv0: Adding interface: macvtap863 [ 2203.819662][T27897] batman_adv: batadv0: The MTU of interface macvtap863 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:00 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xac000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:00 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, 0x0, 0x0, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2203.970268][T27897] batman_adv: batadv0: Not using interface macvtap863 (retrying later): interface not active 22:45:00 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xad000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2204.159799][T27912] batman_adv: batadv0: Adding interface: macvtap864 22:45:00 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xab000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2204.199249][T27912] batman_adv: batadv0: The MTU of interface macvtap864 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2204.368209][T27912] batman_adv: batadv0: Not using interface macvtap864 (retrying later): interface not active 22:45:00 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xae000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:00 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x7a, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:00 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x9000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:00 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x30000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:01 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xaf000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2204.812910][T27935] batman_adv: batadv0: Adding interface: macvtap865 22:45:01 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x32000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2204.881569][T27935] batman_adv: batadv0: The MTU of interface macvtap865 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:01 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, 0x0, 0x0, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2205.033766][T27935] batman_adv: batadv0: Not using interface macvtap865 (retrying later): interface not active 22:45:01 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x10000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:01 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb0000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2205.262085][T27957] batman_adv: batadv0: Adding interface: macvtap866 [ 2205.287003][T27957] batman_adv: batadv0: The MTU of interface macvtap866 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:01 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xaf000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2205.342282][T27957] batman_adv: batadv0: Not using interface macvtap866 (retrying later): interface not active 22:45:01 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x86, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:01 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x2b000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2205.586485][T27973] batman_adv: batadv0: Adding interface: macvtap867 22:45:02 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb1000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:02 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, 0x0, 0x0, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2205.622309][T27973] batman_adv: batadv0: The MTU of interface macvtap867 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2205.787449][T27973] batman_adv: batadv0: Not using interface macvtap867 (retrying later): interface not active 22:45:02 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb2000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2206.034501][T27984] batman_adv: batadv0: Adding interface: macvtap868 22:45:02 executing program 1: creat(&(0x7f0000000280)='./file0\x00', 0x0) r0 = inotify_init1(0x0) r1 = dup(r0) inotify_add_watch(r1, &(0x7f00000000c0)='./file0\x00', 0x400000ed) perf_event_open(&(0x7f0000000240)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8001, 0x10, 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) syz_open_dev$sg(&(0x7f0000000000)='/dev/sg#\x00', 0x0, 0x5) sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000cc0)=[{0x0, 0x0, 0x0}], 0x1, 0x0) newfstatat(0xffffffffffffff9c, 0x0, 0x0, 0x4000) lchown(&(0x7f0000000000)='./file0\x00', 0x0, 0x0) [ 2206.087938][T27984] batman_adv: batadv0: The MTU of interface macvtap868 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:02 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb3000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2206.245615][T27984] batman_adv: batadv0: Not using interface macvtap868 (retrying later): interface not active 22:45:02 executing program 1: 22:45:02 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x64000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:02 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x94, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:02 executing program 1: 22:45:02 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb4000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:03 executing program 1: [ 2206.608995][T28009] batman_adv: batadv0: Adding interface: macvtap869 [ 2206.628086][T28009] batman_adv: batadv0: The MTU of interface macvtap869 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:03 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff), 0x0, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:45:03 executing program 1: [ 2206.778972][T28009] batman_adv: batadv0: Not using interface macvtap869 (retrying later): interface not active 22:45:03 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb5000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:03 executing program 1: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = dup2(r2, r2) ioctl$VT_RELDISP(0xffffffffffffffff, 0x5605) setsockopt$inet_mtu(r3, 0x0, 0x4, 0x0, 0x0) r4 = dup3(r3, r1, 0x0) connect$inet6(0xffffffffffffffff, 0x0, 0x0) r5 = dup2(r4, r0) setsockopt$inet_mtu(r5, 0x0, 0x4, 0x0, 0x0) [ 2206.949254][T28022] batman_adv: batadv0: Adding interface: macvtap870 [ 2206.998440][T28022] batman_adv: batadv0: The MTU of interface macvtap870 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:03 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb6000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:03 executing program 1: creat(&(0x7f0000000280)='./file0\x00', 0x0) write$binfmt_script(0xffffffffffffffff, &(0x7f0000000080)=ANY=[], 0x2) r0 = inotify_init1(0x0) r1 = dup(r0) inotify_add_watch(r1, &(0x7f00000000c0)='./file0\x00', 0x400000ed) perf_event_open(&(0x7f0000000240)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8001, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000000), 0x0) sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000cc0)=[{&(0x7f0000000140)=@abs, 0x6e, 0x0}, {&(0x7f0000000580)=@file={0x0, './file0\x00'}, 0x6e, &(0x7f0000000b80)=[{0x0}], 0x1}], 0x2, 0x0) lchown(&(0x7f0000000000)='./file0\x00', 0x0, 0x0) [ 2207.171343][T28022] batman_adv: batadv0: Not using interface macvtap870 (retrying later): interface not active 22:45:03 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0xde, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:03 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0xc3070000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:03 executing program 1: perf_event_open(&(0x7f00000020c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x80001, 0x0) setsockopt$inet6_MCAST_JOIN_GROUP(r0, 0x29, 0x2a, &(0x7f0000000040)={0x100000001, {{0xa, 0x0, 0x0, @mcast1}}}, 0x88) setsockopt$inet6_MCAST_MSFILTER(r0, 0x29, 0x30, &(0x7f0000000b40)={0x100000001, {{0xa, 0x0, 0x0, @mcast1}}, 0x1}, 0x90) 22:45:03 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb7000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2207.543567][T28047] batman_adv: batadv0: Adding interface: macvtap871 [ 2207.566648][T28047] batman_adv: batadv0: The MTU of interface macvtap871 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:04 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb8000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:04 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff), 0x0, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2207.699310][T28047] batman_adv: batadv0: Not using interface macvtap871 (retrying later): interface not active 22:45:04 executing program 1: perf_event_open(&(0x7f00000020c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x80001, 0x0) setsockopt$inet6_MCAST_MSFILTER(r0, 0x29, 0x30, &(0x7f0000000b40)={0x100000001, {{0xa, 0x0, 0x0, @mcast1}}}, 0x90) [ 2207.878507][T28067] batman_adv: batadv0: Adding interface: macvtap872 22:45:04 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xb9000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2207.921731][T28067] batman_adv: batadv0: The MTU of interface macvtap872 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2208.063350][T28067] batman_adv: batadv0: Not using interface macvtap872 (retrying later): interface not active 22:45:04 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0xf0, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:04 executing program 1: r0 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000140)='/dev/infiniband/rdma_cm\x00', 0x2, 0x0) write$RDMA_USER_CM_CMD_CREATE_ID(r0, &(0x7f0000000280)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000180)={0xffffffffffffffff}, 0x13f}}, 0x20) write$RDMA_USER_CM_CMD_RESOLVE_IP(r0, &(0x7f0000000400)={0x3, 0x40, 0xfa00, {{0xa, 0x0, 0x0, @local, 0x2}, {0xa, 0x0, 0x0, @mcast1}, r1}}, 0x48) 22:45:04 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xba000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:04 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x1000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:04 executing program 1: perf_event_open(&(0x7f00000020c0)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$inet6_sctp(0xa, 0x5, 0x84) r0 = socket$inet6(0xa, 0x80001, 0x0) setsockopt$inet6_MCAST_JOIN_GROUP(r0, 0x29, 0x2a, &(0x7f0000000040)={0x100000001, {{0xa, 0x0, 0x0, @mcast1}}}, 0x88) setsockopt$inet6_MCAST_MSFILTER(r0, 0x29, 0x30, &(0x7f0000000b40)={0x0, {{0xa, 0x0, 0x0, @mcast1}}, 0x1}, 0x90) getsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX3(r0, 0x84, 0x6f, &(0x7f0000000000)={0x0, 0x0, 0x0}, 0x0) sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) [ 2208.457767][T28084] batman_adv: batadv0: Adding interface: macvtap873 22:45:04 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0xe1, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200000, 0x0, @perf_config_ext={0x0, 0x9}, 0x821, 0x0, 0x0, 0x0, 0x1000000}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x1) r0 = epoll_create1(0x0) r1 = epoll_create1(0x0) close(r0) epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000c85000)) r2 = openat$rdma_cm(0xffffffffffffff9c, 0x0, 0x2, 0x0) write$RDMA_USER_CM_CMD_CREATE_ID(r2, &(0x7f0000000100)={0x0, 0x18, 0xfa00, {0x2, &(0x7f0000000180)={0xffffffffffffffff}}}, 0x20) write$RDMA_USER_CM_CMD_DESTROY_ID(r2, &(0x7f00000000c0)={0x1, 0x10, 0xfa00, {&(0x7f0000000040), r3}}, 0x18) write$RDMA_USER_CM_CMD_JOIN_MCAST(0xffffffffffffffff, &(0x7f0000000500)={0x16, 0x98, 0xfa00, {&(0x7f0000000140)={0xffffffffffffffff}, 0x2, 0xffffffffffffffff, 0x30, 0x0, @ib={0x1b, 0x4289, 0x1f, {"302c1a4d3b4600"}, 0x6, 0x0, 0x80}}}, 0xfe) write$RDMA_USER_CM_CMD_LEAVE_MCAST(0xffffffffffffffff, &(0x7f00000001c0)={0x11, 0x10, 0xfa00, {&(0x7f0000000080), r4}}, 0x18) write$RDMA_USER_CM_CMD_LEAVE_MCAST(0xffffffffffffffff, &(0x7f0000000080)={0x11, 0x10, 0xfa00, {&(0x7f0000000040), r4}}, 0x18) epoll_ctl$EPOLL_CTL_MOD(r1, 0x3, r0, &(0x7f0000f2cff4)={0x77540947ad9a168d}) r5 = fcntl$dupfd(0xffffffffffffffff, 0x406, r1) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = socket$inet6_tcp(0xa, 0x1, 0x0) r7 = fcntl$dupfd(r6, 0x0, r6) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x400200) ioctl$BLKGETSIZE64(r7, 0x80081272, &(0x7f0000000000)) [ 2208.526174][T28084] batman_adv: batadv0: The MTU of interface macvtap873 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:04 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xbb000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:05 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff), 0x0, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2208.664513][T28084] batman_adv: batadv0: Not using interface macvtap873 (retrying later): interface not active 22:45:05 executing program 1: mkdir(&(0x7f0000000140)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f0000000100)='ramfs\x00', 0x0, 0x0) chdir(&(0x7f0000000280)='./file0\x00') creat(&(0x7f0000000080)='./bus\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = open(&(0x7f0000000400)='./bus\x00', 0x0, 0x0) r1 = creat(&(0x7f0000000000)='./file0\x00', 0x0) write$cgroup_type(r1, &(0x7f0000000180)='threaded\x00', 0x2d1ee37) mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x0, 0x11, r0, 0x0) 22:45:05 executing program 3: r0 = 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = socket$inet(0x2, 0x2, 0x0) r2 = fcntl$dupfd(r1, 0x3, 0xffffffffffffffff) write(r2, &(0x7f0000000100), 0x200eb100) r3 = epoll_create1(0x0) r4 = epoll_create1(0x0) close(r3) epoll_ctl$EPOLL_CTL_ADD(r4, 0x1, r3, &(0x7f0000c85000)) epoll_ctl$EPOLL_CTL_MOD(r4, 0x3, r3, &(0x7f0000f2cff4)={0x77540947ad9a168d}) epoll_ctl$EPOLL_CTL_MOD(r3, 0x3, r0, &(0x7f0000000000)={0x18}) ioctl$SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT(0xffffffffffffffff, 0x40505331, &(0x7f0000000040)={{0x9, 0x26}, {0x7f, 0x3}, 0x6, 0xa, 0x8b}) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2208.920057][T28115] batman_adv: batadv0: Adding interface: macvtap874 [ 2208.980645][ T27] audit: type=1804 audit(1589755505.343:132): pid=28125 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/newroot/3427/file0/bus" dev="ramfs" ino=362424 res=1 22:45:05 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xbc000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2209.016378][T28115] batman_adv: batadv0: The MTU of interface macvtap874 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:05 executing program 1: pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) vmsplice(r1, &(0x7f0000000840)=[{&(0x7f0000000680)='0', 0x1}], 0x1, 0x0) close(r1) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_int(r2, 0x6, 0x13, &(0x7f00000000c0)=0x800000100000001, 0x4) connect$inet6(r2, &(0x7f0000000000)={0xa, 0x0, 0x0, @empty}, 0x1c) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) setsockopt$inet6_tcp_TCP_ULP(r2, 0x6, 0x1f, &(0x7f0000000040)='tls\x00', 0x355) setsockopt$inet6_tcp_TLS_TX(r1, 0x11a, 0x1, &(0x7f0000000100)=@ccm_128={{0x304}, "41019434436b1980", "698001d0fedd7a3e92c4559f8e1f6c1f", "928117f6", "58d3c21fad3ebb88"}, 0x28) splice(r0, 0x0, r1, 0x0, 0x100000000, 0x0) [ 2209.254990][T28115] batman_adv: batadv0: Not using interface macvtap874 (retrying later): interface not active 22:45:05 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x116, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:05 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x40000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:05 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xbd000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:06 executing program 1: pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) vmsplice(r1, &(0x7f0000000840)=[{&(0x7f0000000680)='0', 0x1}], 0x1, 0x0) close(r1) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_int(r2, 0x6, 0x13, &(0x7f00000000c0)=0x800000100000001, 0x4) connect$inet6(r2, &(0x7f0000000000)={0xa, 0x0, 0x0, @empty}, 0x1c) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) setsockopt$inet6_tcp_TCP_ULP(r2, 0x6, 0x1f, &(0x7f0000000040)='tls\x00', 0x355) setsockopt$inet6_tcp_TLS_TX(r1, 0x11a, 0x1, &(0x7f0000000100)=@ccm_128={{0x304}, "41019434436b1980", "698001d0fedd7a3e92c4559f8e1f6c1f", "928117f6", "58d3c21fad3ebb88"}, 0x28) splice(r0, 0x0, r1, 0x0, 0x100000000, 0x0) 22:45:06 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, 0x0, 0x0) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2209.753158][T28140] batman_adv: batadv0: Adding interface: macvtap875 22:45:06 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) pipe2(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}, 0x4000) r3 = socket$nl_route(0x10, 0x3, 0x0) r4 = socket$netlink(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r4, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000004c0)=ANY=[@ANYBLOB="4800000010000d07cdd87d345d28000000000a00", @ANYRES32=r6, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000002c0)=ANY=[@ANYRES16, @ANYRES32=r6, @ANYBLOB="00000000ffffffff0000000008000100736671"], 0x74}}, 0x40005) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000600)=ANY=[@ANYBLOB="840000006400010700"/20, @ANYRES32=r6, @ANYBLOB="000800800000000003000000080001"], 0x84}}, 0x0) sendmsg$can_j1939(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x1d, r6, 0x0, {0x1, 0xff, 0x2}, 0xff}, 0x18, &(0x7f0000000140)={&(0x7f0000000080)="ecfe04b1fdde6968104e4794ff5dfc7340c4d5fb926af7ffecbc6d2bfc6d417457bd08cdf20760d5a28ef64835ac9a4efa07aab43189f4d774dfdf558c98f95dc8f6162a91c050d681ba0f826daf5952155787453bf6e0c6974a038d8d31bcfa1901aa603e9aaf79909efdddb345aa9ce16d9716ebf4f016c9dfc7922de6979f588b25008d9f8eb9e2f3b1421b090dcfa6a883a6b14320645567c80140f263694ea50111f52ce16297af2fc7", 0xac}, 0x1, 0x0, 0x0, 0x80}, 0xc8d0) 22:45:06 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000000)=0x14) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xe) ioctl$TIOCVHANGUP(r0, 0x5437, 0x0) [ 2209.831578][T28140] batman_adv: batadv0: The MTU of interface macvtap875 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:06 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xbe000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2210.041318][T28140] batman_adv: batadv0: Not using interface macvtap875 (retrying later): interface not active [ 2210.119617][T28164] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:45:06 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000000)=0x14) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xe) ioctl$TIOCVHANGUP(r0, 0x5437, 0x0) 22:45:06 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x300000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2210.358686][T28175] batman_adv: batadv0: Adding interface: macvtap876 22:45:06 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xbf000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:06 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, 0x0, 0x0) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2210.407160][T28175] batman_adv: batadv0: The MTU of interface macvtap876 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2210.594180][T28175] batman_adv: batadv0: Not using interface macvtap876 (retrying later): interface not active [ 2210.727274][T28168] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:45:07 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x142, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:07 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x2, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:07 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc0000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:07 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000000)=0x14) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xe) ioctl$TIOCVHANGUP(r0, 0x5437, 0x0) 22:45:07 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, 0x0, 0x0) sendto$inet(r3, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2211.007617][T28203] batman_adv: batadv0: Adding interface: macvtap877 22:45:07 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000000)=0x14) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xe) ioctl$TIOCVHANGUP(r0, 0x5437, 0x0) [ 2211.094640][T28203] batman_adv: batadv0: The MTU of interface macvtap877 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2211.291808][T28203] batman_adv: batadv0: Not using interface macvtap877 (retrying later): interface not active 22:45:07 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000000)=0x14) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xe) 22:45:07 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc1000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:07 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x800000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:07 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x17e, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:08 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xe) 22:45:08 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(0xffffffffffffffff, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:45:08 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) r2 = socket$inet6_mptcp(0xa, 0x1, 0x106) bind$inet6(r2, &(0x7f0000000000)={0xa, 0x4e23, 0x8, @initdev={0xfe, 0x88, [], 0x1, 0x0}, 0x11d}, 0x1c) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2211.812078][T28233] batman_adv: batadv0: Adding interface: macvtap878 22:45:08 executing program 1: ioctl$TIOCSETD(0xffffffffffffffff, 0x5423, &(0x7f00000000c0)=0xe) [ 2211.861003][T28233] batman_adv: batadv0: The MTU of interface macvtap878 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:08 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc2000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:08 executing program 1: ioctl$TIOCSETD(0xffffffffffffffff, 0x5423, &(0x7f00000000c0)=0xe) [ 2211.974073][T28233] batman_adv: batadv0: Not using interface macvtap878 (retrying later): interface not active 22:45:08 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x900000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:08 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x180, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:08 executing program 1: ioctl$TIOCSETD(0xffffffffffffffff, 0x5423, &(0x7f00000000c0)=0xe) 22:45:08 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc3000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:08 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xe) [ 2212.514612][T28266] batman_adv: batadv0: Adding interface: macvtap879 22:45:09 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(0xffffffffffffffff, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2212.557733][T28266] batman_adv: batadv0: The MTU of interface macvtap879 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:09 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xe) [ 2212.680192][T28266] batman_adv: batadv0: Not using interface macvtap879 (retrying later): interface not active 22:45:09 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc4000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:09 executing program 3: perf_event_open(&(0x7f000001d000)={0x3, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x0, 0x3ff}, 0x0, 0x3, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2212.885410][T28277] batman_adv: batadv0: Adding interface: macvtap880 22:45:09 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xe) [ 2212.938747][T28277] batman_adv: batadv0: The MTU of interface macvtap880 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:09 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc5000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:09 executing program 1: openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(0xffffffffffffffff, 0x5423, &(0x7f00000000c0)=0xe) [ 2213.138792][T28277] batman_adv: batadv0: Not using interface macvtap880 (retrying later): interface not active 22:45:09 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x1000000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:09 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x18a, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:09 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x20808, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xcead, 0x0, 0xfffffffffffffffe, 0x0, 0x4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:09 executing program 1: openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(0xffffffffffffffff, 0x5423, &(0x7f00000000c0)=0xe) 22:45:09 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(0xffffffffffffffff, &(0x7f00003cef9f)='7', 0x1, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:45:10 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc6000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2213.624416][T28310] batman_adv: batadv0: Adding interface: macvtap881 22:45:10 executing program 1: openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(0xffffffffffffffff, 0x5423, &(0x7f00000000c0)=0xe) [ 2213.650590][T28310] batman_adv: batadv0: The MTU of interface macvtap881 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:10 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, 0x0) [ 2213.762057][T28310] batman_adv: batadv0: Not using interface macvtap881 (retrying later): interface not active 22:45:10 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) r2 = syz_open_dev$vcsu(&(0x7f0000000000)='/dev/vcsu#\x00', 0x80, 0x3001) pipe(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) close(r3) r4 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000080)='/dev/infiniband/rdma_cm\x00', 0x2, 0x0) write$RDMA_USER_CM_CMD_CREATE_ID(r4, &(0x7f0000000200)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000100)={0xffffffffffffffff}, 0x2}}, 0x20) write$RDMA_USER_CM_CMD_QUERY(r3, &(0x7f0000000000)={0x13, 0x10, 0xfa00, {&(0x7f0000000180), r5}}, 0x18) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r2, &(0x7f0000000100)={0xb, 0x10, 0xfa00, {&(0x7f0000000040), r5, 0x40}}, 0x18) write(r1, &(0x7f0000000000), 0x0) r6 = epoll_create1(0x0) r7 = epoll_create1(0x0) close(r6) epoll_ctl$EPOLL_CTL_ADD(r7, 0x1, r6, &(0x7f0000c85000)) epoll_ctl$EPOLL_CTL_MOD(r7, 0x3, r6, &(0x7f0000f2cff4)={0x77540947ad9a168d}) close(r6) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x15) 22:45:10 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc7000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:10 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, 0x0) [ 2213.990242][T28328] batman_adv: batadv0: Adding interface: macvtap882 [ 2214.013837][T28328] batman_adv: batadv0: The MTU of interface macvtap882 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2214.171869][T28328] batman_adv: batadv0: Not using interface macvtap882 (retrying later): interface not active 22:45:10 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc8000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:10 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x6400000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:10 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x18c, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:10 executing program 3: perf_event_open(&(0x7f000001d000)={0x5, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x8}, 0x0, 0x2, 0xffffffffffffffff, 0x1) r0 = epoll_create1(0x0) r1 = epoll_create1(0x0) close(r0) epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000c85000)) epoll_ctl$EPOLL_CTL_MOD(r1, 0x3, r0, &(0x7f0000f2cff4)={0x77540947ad9a168d}) fsetxattr$trusted_overlay_opaque(r1, &(0x7f0000000000)='trusted.overlay.opaque\x00', &(0x7f0000000040)='y\x00', 0x2, 0x0) r2 = socket$inet(0x2, 0x2, 0x0) r3 = fcntl$dupfd(r2, 0x3, 0xffffffffffffffff) write(r3, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:10 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, 0x0) [ 2214.585688][T28359] batman_adv: batadv0: Adding interface: macvtap883 22:45:11 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 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_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, 0x0, 0x0, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:45:11 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)) 22:45:11 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xc9000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2214.629147][T28359] batman_adv: batadv0: The MTU of interface macvtap883 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2214.759905][T28359] batman_adv: batadv0: Not using interface macvtap883 (retrying later): interface not active 22:45:11 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)) 22:45:11 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) getsockopt$PNPIPE_ENCAP(r3, 0x113, 0x1, &(0x7f0000000000), &(0x7f0000000040)=0x4) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:11 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xca000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2215.019990][T28376] batman_adv: batadv0: Adding interface: macvtap884 22:45:11 executing program 1: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttyS3\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)) [ 2215.057715][T28376] batman_adv: batadv0: The MTU of interface macvtap884 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2215.230864][T28376] batman_adv: batadv0: Not using interface macvtap884 (retrying later): interface not active 22:45:11 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0xc307000000000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:11 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x1fa, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:11 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x4c, 0x2, 0x6, 0x101, 0x0, 0x0, {}, [@IPSET_ATTR_REVISION={0x5}, @IPSET_ATTR_SETNAME={0x9, 0x2, 'syz0\x00'}, @IPSET_ATTR_PROTOCOL={0x5, 0x1, 0x6}, @IPSET_ATTR_FAMILY={0x5, 0x5, 0x2}, @IPSET_ATTR_TYPENAME={0x11, 0x3, 'hash:ip,mark\x00'}]}, 0x4c}}, 0x0) 22:45:11 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xcb000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:11 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, 0x0, 0x0, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:45:12 executing program 1: r0 = syz_open_dev$tty1(0xc, 0x4, 0x1) r1 = socket$inet_sctp(0x2, 0x5, 0x84) r2 = dup2(r0, r1) r3 = socket$unix(0x1, 0x2, 0x0) r4 = socket$unix(0x1, 0x1, 0x0) r5 = dup2(r4, r3) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) write$UHID_INPUT(r2, &(0x7f0000000000)={0x8, {"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", 0x1000}}, 0x1006) [ 2215.691474][T28401] batman_adv: batadv0: Adding interface: macvtap885 [ 2215.730610][T28401] batman_adv: batadv0: The MTU of interface macvtap885 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:12 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xcc000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2215.888307][T28401] batman_adv: batadv0: Not using interface macvtap885 (retrying later): interface not active 22:45:12 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) bpf$MAP_LOOKUP_ELEM(0x1, &(0x7f0000000400)={r1, &(0x7f0000000280)="e3c5311ab21e65b9ca45b4f4a588fb77ec3edc1d7a6c80400d5bff07481e1fa61b31db328ed4c1739dd732ccd4f9fb1f47ae7f8d6168239bf9d5c64c76335d440d47a5d2b66cccfe3ce24ba28a", &(0x7f00000003c0)=""/52, 0x4}, 0x20) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r2 = add_key$user(&(0x7f0000000540)='user\x00', &(0x7f0000000340)={'syz', 0x0}, &(0x7f0000000100), 0x26, 0xfffffffffffffffe) r3 = add_key$user(&(0x7f00000000c0)='user\x00', &(0x7f0000000440)={'syz'}, &(0x7f0000000380)='X', 0x1, 0xfffffffffffffffe) r4 = add_key$user(&(0x7f00000000c0)='user\x00', &(0x7f0000000440)={'syz'}, &(0x7f0000000380)='X', 0x1, 0xfffffffffffffffe) keyctl$dh_compute(0x17, &(0x7f0000000040)={r2, r4, r3}, &(0x7f0000000140)=""/8, 0x8, &(0x7f0000000080)={&(0x7f00000000c0)={'blake2s-256-generic\x00'}}) keyctl$read(0xb, r3, &(0x7f0000000000)=""/207, 0xcf) r5 = openat$mice(0xffffffffffffff9c, &(0x7f0000000100)='/dev/input/mice\x00', 0x109000) r6 = syz_genetlink_get_family_id$tipc2(&(0x7f00000000c0)='TIPCv2\x00') r7 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$TIPC_NL_MEDIA_SET(r7, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000480)=ANY=[@ANYBLOB="34000000a1989b1caa84e04febf684ccab8f2e2ab487d4a3e973507a1f5705ea415ba2083bae3508b61903f8de0a6eab7a07a64ef5e8d5dc6136a15b2b6debd41929effca3c7248dca22be535711e708e5192ff3027499e5", @ANYRES16=r6, @ANYBLOB="010000000000000000000b00000020000580080001"], 0x34}}, 0x0) r8 = openat$qat_adf_ctl(0xffffffffffffff9c, &(0x7f0000000240)='/dev/qat_adf_ctl\x00', 0x505000, 0x0) ioctl$SNDRV_TIMER_IOCTL_STOP(r8, 0x54a1) sendmsg$TIPC_NL_NODE_GET(r5, &(0x7f0000000200)={&(0x7f0000000180), 0xc, &(0x7f00000001c0)={&(0x7f0000000580)={0x1d0, r6, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@TIPC_NLA_BEARER={0x70, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_PROP={0x14, 0x2, 0x0, 0x1, [@TIPC_NLA_PROP_WIN={0x8, 0x3, 0x2}, @TIPC_NLA_PROP_WIN={0x8, 0x3, 0xffffffff}]}, @TIPC_NLA_BEARER_UDP_OPTS={0x2c, 0x4, {{0x14, 0x1, @in={0x2, 0x4e23, @rand_addr=0x64010100}}, {0x14, 0x2, @in={0x2, 0x4e21, @multicast1}}}}, @TIPC_NLA_BEARER_DOMAIN={0x8, 0x3, 0xcb}, @TIPC_NLA_BEARER_PROP={0x1c, 0x2, 0x0, 0x1, [@TIPC_NLA_PROP_MTU={0x8, 0x4, 0x3ff}, @TIPC_NLA_PROP_MTU={0x8, 0x4, 0x3f}, @TIPC_NLA_PROP_TOL={0x8}]}, @TIPC_NLA_BEARER_DOMAIN={0x8, 0x3, 0xfff}]}, @TIPC_NLA_NET={0xc, 0x7, 0x0, 0x1, [@TIPC_NLA_NET_ID={0x8, 0x1, 0x9}]}, @TIPC_NLA_SOCK={0xc, 0x2, 0x0, 0x1, [@TIPC_NLA_SOCK_ADDR={0x8, 0x1, 0x10001}]}, @TIPC_NLA_SOCK={0x3c, 0x2, 0x0, 0x1, [@TIPC_NLA_SOCK_REF={0x8, 0x2, 0x7ff}, @TIPC_NLA_SOCK_HAS_PUBL={0x4}, @TIPC_NLA_SOCK_ADDR={0x8, 0x1, 0x9}, @TIPC_NLA_SOCK_ADDR={0x8}, @TIPC_NLA_SOCK_HAS_PUBL={0x4}, @TIPC_NLA_SOCK_ADDR={0x8, 0x1, 0xfffffffc}, @TIPC_NLA_SOCK_REF={0x8, 0x2, 0x9}, @TIPC_NLA_SOCK_REF={0x8, 0x2, 0x1}]}, @TIPC_NLA_NET={0x44, 0x7, 0x0, 0x1, [@TIPC_NLA_NET_NODEID_W1={0xc, 0x4, 0x3}, @TIPC_NLA_NET_NODEID={0xc, 0x3, 0x100000001}, @TIPC_NLA_NET_NODEID_W1={0xc, 0x4, 0xfffffffffffffffd}, @TIPC_NLA_NET_ADDR={0x8, 0x2, 0x4}, @TIPC_NLA_NET_NODEID_W1={0xc, 0x4, 0x8}, @TIPC_NLA_NET_ID={0x8, 0x1, 0xfff}]}, @TIPC_NLA_PUBL={0x1c, 0x3, 0x0, 0x1, [@TIPC_NLA_PUBL_LOWER={0x8, 0x2, 0x1d2}, @TIPC_NLA_PUBL_LOWER={0x8, 0x2, 0x101}, @TIPC_NLA_PUBL_LOWER={0x8, 0x2, 0xe245}]}, @TIPC_NLA_MON={0x44, 0x9, 0x0, 0x1, [@TIPC_NLA_MON_REF={0x8, 0x2, 0x20}, @TIPC_NLA_MON_REF={0x8, 0x2, 0x4}, @TIPC_NLA_MON_REF={0x8, 0x2, 0x6}, @TIPC_NLA_MON_ACTIVATION_THRESHOLD={0x8, 0x1, 0x5}, @TIPC_NLA_MON_REF={0x8, 0x2, 0xb3}, @TIPC_NLA_MON_REF={0x8, 0x2, 0x1}, @TIPC_NLA_MON_REF={0x8, 0x2, 0x3}, @TIPC_NLA_MON_ACTIVATION_THRESHOLD={0x8, 0x1, 0x7fff}]}, @TIPC_NLA_NET={0x54, 0x7, 0x0, 0x1, [@TIPC_NLA_NET_NODEID={0xc, 0x3, 0x7ff}, @TIPC_NLA_NET_NODEID={0xc, 0x3, 0x3}, @TIPC_NLA_NET_ID={0x8, 0x1, 0x8}, @TIPC_NLA_NET_NODEID_W1={0xc, 0x4, 0x401}, @TIPC_NLA_NET_ADDR={0x8, 0x2, 0x80000001}, @TIPC_NLA_NET_ID={0x8, 0x1, 0x7ff}, @TIPC_NLA_NET_ADDR={0x8, 0x2, 0x1}, @TIPC_NLA_NET_NODEID={0xc, 0x3, 0x63}]}]}, 0x1d0}, 0x1, 0x0, 0x0, 0x8805}, 0x80) [ 2216.009406][T28418] batman_adv: batadv0: Adding interface: macvtap886 [ 2216.009430][T28418] batman_adv: batadv0: The MTU of interface macvtap886 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:12 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x216, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:12 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xcd000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2216.009439][T28418] batman_adv: batadv0: Not using interface macvtap886 (retrying later): interface not active 22:45:12 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0xffffffff00000000}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2216.442277][T28430] batman_adv: batadv0: Adding interface: macvtap887 22:45:12 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, 0x0, 0x0, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2216.442307][T28430] batman_adv: batadv0: The MTU of interface macvtap887 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:13 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x234, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:13 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xce000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2216.442316][T28430] batman_adv: batadv0: Not using interface macvtap887 (retrying later): interface not active [ 2216.569766][T28437] batman_adv: batadv0: Adding interface: macvtap888 [ 2216.569788][T28437] batman_adv: batadv0: The MTU of interface macvtap888 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:13 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x0, 0x3}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) [ 2216.569796][T28437] batman_adv: batadv0: Not using interface macvtap888 (retrying later): interface not active [ 2216.911067][T28452] batman_adv: batadv0: Adding interface: macvtap889 22:45:13 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x242, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:13 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xcf000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) [ 2216.911088][T28452] batman_adv: batadv0: The MTU of interface macvtap889 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2216.912531][T28452] batman_adv: batadv0: Not using interface macvtap889 (retrying later): interface not active [ 2217.119277][T28461] batman_adv: batadv0: Adding interface: macvtap890 [ 2217.119297][T28461] batman_adv: batadv0: The MTU of interface macvtap890 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2217.119306][T28461] batman_adv: batadv0: Not using interface macvtap890 (retrying later): interface not active [ 2217.348556][T28475] batman_adv: batadv0: Adding interface: macvtap891 [ 2217.348577][T28475] batman_adv: batadv0: The MTU of interface macvtap891 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2217.348585][T28475] batman_adv: batadv0: Not using interface macvtap891 (retrying later): interface not active [ 2217.435978][T28480] batman_adv: batadv0: Adding interface: macvtap892 [ 2217.508561][T28480] batman_adv: batadv0: The MTU of interface macvtap892 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2217.508663][T28480] batman_adv: batadv0: Not using interface macvtap892 (retrying later): interface not active 22:45:14 executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x34, 0xb, 0x6, 0x101, 0x0, 0x0, {}, [@IPSET_ATTR_SETNAME={0x9, 0x2, 'syz0\x00'}, @IPSET_ATTR_PROTOCOL={0x5, 0x1, 0x6}, @IPSET_ATTR_DATA={0xc, 0x7, 0x0, 0x1, [@IPSET_ATTR_TIMEOUT={0x8, 0x8}]}]}, 0x34}}, 0x0) 22:45:14 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f), 0x0, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) 22:45:14 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x4, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:14 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xd0000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:14 executing program 4: r0 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'virt_wifi0\x00', 0x0}) r2 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r2, 0x8933, &(0x7f0000000000)={'batadv0\x00', 0x0}) r4 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=@newlink={0x44, 0x10, 0x401, 0x27a, 0x0, {}, [@IFLA_LINKINFO={0x14, 0x12, 0x0, 0x1, @macvtap={{0xc, 0x1, 'macvtap\x00'}, {0x4}}}, @IFLA_LINK={0x8, 0x5, r1}, @IFLA_MASTER={0x8, 0xa, r3}]}, 0x44}}, 0x0) 22:45:14 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xd1000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:14 executing program 1: perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) openat$qat_adf_ctl(0xffffffffffffff9c, 0x0, 0x0, 0x0) r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x58, 0x2, 0x6, 0x101, 0x0, 0x0, {}, [@IPSET_ATTR_REVISION={0x5}, @IPSET_ATTR_SETNAME={0x9, 0x2, 'syz0\x00'}, @IPSET_ATTR_PROTOCOL={0x5, 0x1, 0x6}, @IPSET_ATTR_FAMILY={0x5, 0x5, 0x2}, @IPSET_ATTR_DATA={0xc, 0x7, 0x0, 0x1, [@IPSET_ATTR_TIMEOUT={0x8, 0x8}]}, @IPSET_ATTR_TYPENAME={0x11, 0x3, 'hash:ip,mark\x00'}]}, 0x58}}, 0x0) [ 2217.950044][T28493] batman_adv: batadv0: Adding interface: macvtap893 22:45:14 executing program 3: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) r2 = openat$proc_capi20ncci(0xffffffffffffff9c, &(0x7f0000000000)='/proc/capi/capi20ncci\x00', 0x6200, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r2, 0x3b71, &(0x7f0000000040)={0x20, 0x3, 0x80000001, 0x3, 0x4}) write(r1, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x64) [ 2218.009304][T28493] batman_adv: batadv0: The MTU of interface macvtap893 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 2218.188235][T28493] batman_adv: batadv0: Not using interface macvtap893 (retrying later): interface not active 22:45:14 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_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) openat$qat_adf_ctl(0xffffffffffffff9c, 0x0, 0x0, 0x0) r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x58, 0x2, 0x6, 0x101, 0x0, 0x0, {}, [@IPSET_ATTR_REVISION={0x5}, @IPSET_ATTR_SETNAME={0x9, 0x2, 'syz0\x00'}, @IPSET_ATTR_PROTOCOL={0x5, 0x1, 0x6}, @IPSET_ATTR_FAMILY={0x5, 0x5, 0x2}, @IPSET_ATTR_DATA={0xc, 0x7, 0x0, 0x1, [@IPSET_ATTR_TIMEOUT={0x8, 0x8}]}, @IPSET_ATTR_TYPENAME={0x11, 0x3, 'hash:ip,mark\x00'}]}, 0x58}}, 0x0) 22:45:14 executing program 0: pipe(&(0x7f0000000080)) openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/seq\x00', 0x0) openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x0, 0x0) ioctl$int_in(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, &(0x7f0000000240)={0x0, 0x0}) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) syz_genetlink_get_family_id$ethtool(0x0) pselect6(0x40, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa000000}, 0x0, &(0x7f0000000140)={0x1ff, 0x0, 0x0, 0x8}, &(0x7f0000000200)={0x0, r0+30000000}, 0x0) 22:45:14 executing program 5: 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x3, 0xffffffffffffffff) write(r1, &(0x7f0000000100), 0xd2000) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) 22:45:14 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_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) openat$qat_adf_ctl(0xffffffffffffff9c, 0x0, 0x0, 0x0) r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x58, 0x2, 0x6, 0x101, 0x0, 0x0, {}, [@IPSET_ATTR_REVISION={0x5}, @IPSET_ATTR_SETNAME={0x9, 0x2, 'syz0\x00'}, @IPSET_ATTR_PROTOCOL={0x5, 0x1, 0x6}, @IPSET_ATTR_FAMILY={0x5, 0x5, 0x2}, @IPSET_ATTR_DATA={0xc, 0x7, 0x0, 0x1, [@IPSET_ATTR_TIMEOUT={0x8, 0x8}]}, @IPSET_ATTR_TYPENAME={0x11, 0x3, 'hash:ip,mark\x00'}]}, 0x58}}, 0x0) [ 2218.503312][T28519] batman_adv: batadv0: Adding interface: macvtap894 [ 2218.512577][T28519] batman_adv: batadv0: The MTU of interface macvtap894 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 22:45:15 executing program 2: getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0xd, 0x0, 0x0) 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='cmdline\x00') getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000000)={r1, 0x200}, 0x10) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x70, &(0x7f0000000040)=@sack_info={r1, 0x6, 0x7}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000000)={r1, 0x3, 0x2}, 0x10) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) perf_event_open(&(0x7f00000002c0)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x40000}, 0x0, 0xfffffffffffffffd, 0xffffffffffffffff, 0x2) r4 = socket$inet(0x2, 0x2, 0x0) r5 = fcntl$dupfd(r4, 0x3, 0xffffffffffffffff) write(r5, &(0x7f0000000100), 0x200eb100) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x8) r6 = dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000240)=[@in={0x2, 0x0, @loopback}, @in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x1d}}], 0x20) sendto$inet(r6, &(0x7f0000fa3fff)='\t', 0x1, 0x0, &(0x7f00006f7000)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff}}, 0x10) sendto$inet(r3, &(0x7f00003cef9f), 0x0, 0x0, &(0x7f0000618000)={0x2, 0x4e20, @loopback}, 0x10) [ 2218.612229][T28531] ------------[ cut here ]------------