0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000003f090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:33 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f00000002c0)={0x0}) ioctl$PERF_EVENT_IOC_ID(0xffffffffffffffff, 0x80082407, &(0x7f0000000100)) ioctl$SECCOMP_IOCTL_NOTIF_ID_VALID(0xffffffffffffffff, 0x40082102, &(0x7f0000000240)=r3) r4 = open(&(0x7f0000000040)='./file0\x00', 0x2880, 0x1) ioctl$SECCOMP_IOCTL_NOTIF_ADDFD(r2, 0x40182103, &(0x7f00000000c0)={r3, 0x0, r4, 0x5}) socket$inet_udplite(0x2, 0x2, 0x88) r5 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r5, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:07:33 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000900000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:33 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001804b08000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1422.311734][T29385] batman_adv: batadv0: Adding interface: gretap1183 [ 1422.328419][T29385] batman_adv: batadv0: The MTU of interface gretap1183 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1422.405573][T29385] batman_adv: batadv0: Interface activated: gretap1183 03:07:33 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000048090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:33 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001807808000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:33 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00001100000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:34 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000004c090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:34 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00004800000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:34 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180a508000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:34 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0xff7f, 0x0, 0x11}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1423.651923][T29440] batman_adv: Cannot find parent device [ 1423.696544][T29440] batman_adv: batadv0: Adding interface: gretap1184 [ 1423.709934][T29440] batman_adv: batadv0: The MTU of interface gretap1184 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1423.764291][T29440] batman_adv: batadv0: Interface activated: gretap1184 03:07:35 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x9902, @empty}}) 03:07:35 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000244e090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:36 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x4, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x0, 0x0, 0x800000000000000}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = dup(r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$SNDRV_PCM_IOCTL_HW_PARAMS_OLD(r3, 0xc1004111, &(0x7f00000000c0)={0x10000, [0x708, 0x0, 0x3], [{0x5, 0x40, 0x0, 0x0, 0x0, 0x1}, {0x1, 0x6, 0x1, 0x1, 0x0, 0x1}, {0xa0, 0x4b7f, 0x1, 0x1, 0x0, 0x1}, {0x0, 0x0, 0x1, 0x1, 0x1, 0x1}, {0x7fff, 0x7, 0x0, 0x0, 0x1}, {0x2, 0x101, 0x1, 0x0, 0x1, 0x1}, {0x0, 0x401, 0x1, 0x1}, {0x5, 0x6, 0x1}, {0x400, 0x27, 0x1, 0x1}, {0x10000, 0x3}, {0x1f, 0x1, 0x1, 0x0, 0x1, 0x1}, {0x3, 0xdd, 0x1, 0x1}], 0xf}) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:07:36 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00004c00000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:36 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180d208000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:36 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0xfffe, 0x0, 0x11}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:36 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000063090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:36 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800009000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:36 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000068090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:36 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00006300000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:36 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000006c090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1425.534623][T29494] batman_adv: Cannot find parent device 03:07:36 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00006800000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1425.631684][T29494] batman_adv: batadv0: Adding interface: gretap1185 [ 1425.678040][T29494] batman_adv: batadv0: The MTU of interface gretap1185 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1425.810203][T29494] batman_adv: batadv0: Interface activated: gretap1185 03:07:37 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x9c03, @empty}}) 03:07:37 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180000a000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:38 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00006c00000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:38 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000074090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:38 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0xffff, 0x0, 0x11}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:38 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180b80b000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:38 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xa002, @empty}}) 03:07:38 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x12) ioctl$sock_SIOCDELDLCI(r1, 0x8981, &(0x7f0000000040)={'batadv_slave_1\x00', 0x3ff}) perf_event_open(&(0x7f000001d000)={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={0x2c5, 0x100}, 0x0, 0x0, 0x5, 0x5, 0xfffffffffffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000caaffb), &(0x7f0000cab000)=0x1) shutdown(r1, 0x0) ioctl$sock_inet_SIOCSIFADDR(r2, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)) r3 = openat$random(0xffffffffffffff9c, &(0x7f0000000140)='/dev/urandom\x00', 0x8000000000000085, 0x0) r4 = openat$random(0xffffffffffffff9c, &(0x7f0000000140)='/dev/urandom\x00', 0x8000000000000085, 0x0) r5 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000140)='/proc/asound/card0/oss_mixer\x00', 0x0, 0x0) sendfile(r4, r5, 0x0, 0x3ff) ioctl$FS_IOC_GETFSMAP(r5, 0xc0c0583b, &(0x7f00000012c0)={0x0, 0x0, 0x8, 0x0, [], [{0x4, 0x40, 0x0, 0x101, 0x0, 0x3}, {0x7ff, 0x9, 0x0, 0x401, 0x9, 0x56}], [[], [], [], [], [], [], [], []]}) r6 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000140)='/proc/asound/card0/oss_mixer\x00', 0x0, 0x0) sendfile(r3, r6, 0x0, 0x3ff) r7 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x400200) write$UHID_INPUT(r7, &(0x7f0000000280)={0x8, {"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", 0x1000}}, 0x1006) [ 1427.883229][T29578] batman_adv: Cannot find parent device 03:07:39 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00007400000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:39 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000007a090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:39 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180280d000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1427.951701][T29578] batman_adv: batadv0: Adding interface: gretap1186 [ 1427.968351][T29578] batman_adv: batadv0: The MTU of interface gretap1186 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1428.052209][T29578] batman_adv: batadv0: Interface activated: gretap1186 03:07:39 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00007a00000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:39 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000e0090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:39 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180000e000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:39 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000e000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:39 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000030000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:40 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x2}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:40 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800210000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1429.347003][T29634] batman_adv: Cannot find parent device [ 1429.358527][T29634] batman_adv: batadv0: Adding interface: gretap1187 [ 1429.368932][T29634] batman_adv: batadv0: The MTU of interface gretap1187 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1429.396238][T29634] batman_adv: batadv0: Not using interface gretap1187 (retrying later): interface not active 03:07:40 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xa103, @empty}}) 03:07:42 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000180)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = dup(r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) sendto$inet6(r3, &(0x7f00000000c0)="15542f581524f3a82b50935a43fb32ba34a2bd8067ff7a09948ad514e7998f8f223f85990d8ce15d1dce5e37d792424adf20728200932aedfa3e98e1354aebc97d980b73d8ceebe09cc80b5d499c20f96a673f73d1dc33681e59be524bbae864dbcf302071307b86518f1ae755ff75606c6ff2d765a0b65ce4859dd42cd5408e41aeb76ed4f8bb227db8e057889cc0367b2790148b3874229b55b1c3a4f7c832ebcbbe47cd1ea40cbc99c5ad962ea9e3244b559d33ac51ec", 0xb8, 0x8000, &(0x7f0000000040)={0xa, 0x4e20, 0x8, @private2={0xfc, 0x2, [], 0x1}, 0x2}, 0x1c) 03:07:42 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000002090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:42 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000003000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:42 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800011000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:42 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x3}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:42 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xa502, @empty}}) [ 1431.099510][T29696] batman_adv: Cannot find parent device 03:07:42 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000005000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:42 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000003090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1431.186338][T29696] batman_adv: batadv0: Adding interface: gretap1188 03:07:42 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180c812000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1431.233721][T29696] batman_adv: batadv0: The MTU of interface gretap1188 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1431.317827][T29696] batman_adv: batadv0: Interface activated: gretap1188 03:07:42 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000006000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:42 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000004090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:42 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001806818000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:44 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket(0x1f, 0x5, 0x5) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:07:44 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000007000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:44 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000005090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:44 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x4}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:44 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180081e000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:44 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xa803, @empty}}) [ 1433.861645][T29777] batman_adv: Cannot find parent device 03:07:45 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000009000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1433.928331][T29777] batman_adv: batadv0: Adding interface: gretap1189 03:07:45 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000006090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1433.974392][T29777] batman_adv: batadv0: The MTU of interface gretap1189 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:07:45 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800020000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1434.101065][T29777] batman_adv: batadv0: Not using interface gretap1189 (retrying later): interface not active 03:07:45 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000011000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:45 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000007090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:45 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180a823000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:46 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) write$UHID_INPUT(r2, &(0x7f0000000280)={0x8, {"2507990c4010593b12ee519a056366618aea3585abe4e9ac53460f712d9e949a45216457a005b1e5ad2165ab856acde4ab4809c73e18bcd95d96949aa9b57506dbd86b95cabe3a2757bec15559e09297ee97e57e9892396324718a22c3524edb150ae304f0fc6568ae34a000fa5405588b8da6d47118de087653aa1cfd843d0688934197f223d9b7e5d7a6df40e2e93472bfbd5ac81ab2a7ca71bf87df2c7a9eb99fc80f361690a2558cd1434c8047b87040c9bb7b02235051ff76c4a63f50ac7170e4bf118ae34cdea4f5ef612adfe662577dbe3d7474205e1c425d9c86bc148810248aa964e1a3614094a38d2387f786645278467cb99e96e4255d652ef6df57fb38b519927d1b996d89443c45559262b48fa21f4ce23ee91ba2112bbf50ffc3745dcc30673a62b6333e73a7e102cb4eb30d06462fa4025e0ff6105ba48b232bebe2b2bbefe1b0ba3aa19b313cdf5108db7e95711f1ad1b9eb3f6b20df76aae014e18b38356a2f7c14bea35a0c980542d1e87d747bff4e6e1fbf82c46ff0639cb5eb1817cc94dc64bbda96f252d58b470af91b2c63887585b4f3e9b66ef16eac1ea4ba77f36479b64de850fcb1c8c86d1b7b3317c3f622448710bcf0077330afb92682f88d54e06dcc50d3a6e069085c24da21c044852460cb44abdf0e5f4f6e5ec51b70f53bb8ed5913ea13e1079f903dce19fddb7b0274693a3e80584cba21c5b0794745081c848ee33b759fee0e79b238648ccea1a548f05ebc45f318bd053982ebf7cd65d40aafbe8f31c10ac58024cd9682f99e339ff708e475c0f5ac12cbd5845e67b626f7decbb3718cc2c6c1c6dcada44985fdc49b21bf4e19f70458a2e7bfa5cb5a2dc00a8644ce8641019416998c7021e2bd768c85eb41efa7dd27a72888832561ad6fd3ca45ed91549caba57d2a30d3a5f173f956844b6758b064b39fc4d9668adf3346094cca4805df05919c3d4cb05689ea4170aba34b8dddd2501f6c307d2ca457e4870b10f660ffbe568d979ad796cb3318e94e58e4e6f29b9dbbcc4499fc6afb07aa848dc943d10f2cb98d36229d062aace1f3178d80c13e594c05308d7dd18e46ac86bec810bdfbeb802b7c6a96591bfa538a7ac64c5f7e5d7149ee701b7f4a3ddfc0e725da7b1582f8bf606bedc3f14c0c5b16edd592d5a5ae77fa639dff73339a9607fcb87b1065441c0117054d0b1c3c30e1686b1ac2f97bf54021651e6a4de05d05a4ac5ab9e844070b880a4448621cb2031e860476f2e3caf4aa8498f1b4ff2dcc44baf59034ae6fb82727bfbc66e326e978b57f878d5838191284602c149488c02bb9618be24911e3f43744cb72b22a2b41f3e6f4e71cd572b7e0d39da8e5cab83b51cfafbbce94e72fcb9ac417674b7b0159fdb4a96fa5632fb4fb870daedba02d6f2efc95b9e730cd0e811feef160f27f37eff0b3e731819a9c545313fddda5df56eddcba8d63c826b0c1589f029d8e32f9c076216d78b9d14b03266ccef96ae4cea883587e318e74947c4b8ee9becf467448d9da9e69b59b24da1c0437203d1e8d66cfa4bfab5276661168ae711aee54b7d940c0de8c6109348adbee58b2d0d076e4ccfa5e08c4e1c6ad0ec90a25511e61b1933bd33bd4705d14f307f24e730ee40728438865c392de238ff99874edc2f0cdc166b90dd66e4e1f9d871955b2ac3f7745643afc819e0f49fb4dd4e3a2b830120473a2efdd3e22f84f51b780b16c4288fd8d738cf75475565f239427ba5f197877d74351b949dc3b6e8f5c54ddcf9d04a331d39f78092027f4dd92fa43f9ddd3e29b5a934dbaad42c8283abba9f85e3d818cf134e1d7248696c3bfa02832bc293efc26bde0f4cb07a6e0ab1293ef31b71703b908504f9d7e1c0fba26dd50d66a463f25c3cb8bde8f83f5137788121884759368d48c53a24f87fdf84fadbedfccbf1ca9ef39cf47f557153530e2ff11b3c4c1ec5af7f8634f852e79d3781d30f4423e444c78e06111ebee8af14a2b9976338cfb33a7c1344e610063083c49a0baacd6ba82c9609252562a8fa071a53d01320682bb25dcbb593bdab8fbbd1dc60171c1597b1de7bd7a97dbabd9874e12e9fa487aad77e7826a5b6c04bb9f3771b87be05767377bed660b5e50616c7455a9ac2546fb78e10899a152b646cd924f2592fb69edb2fd694c3c89665225fc5a69b62bad3d8885ff78b57a5366fc9ddf52249d6163ebc2aac12f7c8e78dc79026be40c900eedac8f8f1f0d2c2613ecece56186a81d37044b248ccaeb5b534c7fd200ff265591da0cfe7d745605f6bf0209385cc4e96e28a8f56285db9d2e03abbc864c7f7115e991a0945ab2c462dbc087d5323aa62b42fb89bb5328e3b746c5b44dc16fd3c00d5cac9fd5ad5938bf747251d1f6b1cecc9c51539820a026c9b0705e6b820df92f71fb01c7447ef4297f7ec21192e4c459679748948c89cc330292fbcfca1e5de495cc44a201fdf7e9ffa625cd844e1ed4fb75724dba77c9843e99fc03461bfa169e7d60a3d33e235d42171066321d6ac600a621bba868f20c0a9589cdf7eb8bc147659a106d080a550e5fdc581a8a7caa7e4eca6cfb04d33f26dce0982a58b8601909e5c3a348d8f5f27943275d4a57c9e7fe1f7c6209f5b1f18f1735262127572b3f021ec42e543020616e5a9374103e1cd527b83000fe55fd83952990a6c092af3fb9212604d0eb2ceab9ad0a5f66e0f13880406c45b39393d78b8f3a8af5c8c11898767905338eb10bf372853b5e9f9cdfa2b24c356c5143e906b9a58205701b234e4be7ce5f05956f8c075abbdd4025c91036f8277e06dd443fae6b89dc27a8ecc5c16805a6fc2844d0401c43febef580bace934b299160323221002c1052235c76d655f6c16a3eea70b6860f7b8c68f5a7f04445e4615e751d932157f925203c80dab76586b80d7b56e34814d3483cde4146eaf4571c3f09a757069271fe15d9bace279b3b44f7a1bd380062d4a6c7246836240fbd2d9f9e9e8a23d62b60638950d5c22f9c44d6848a8122d81f90a468c96871ea2baf99d78c1c981bfa10b6d14f7a1e2d9edda82121f78c7b686b54dfbb4799027dd25710f64abcf70bf6701045ac668032a078f55d33ac718f41ed4ee283d1cd52b361b10b1ac816156b9d1a54f9b842f56f5a7b45caa214abae667da82ae916d20ac21cbc0c796fa56fe0ba23c2fa5a033e8db2767a5497ccd8b06440eea4204c6cb075064013dc505b6b94556828cc0b9d04b10429d3cff8aca376f597777cc072db9c56f2c47f3fed8869bdec6f396f63df2086af78e5b060bc68d00d638399884b094b2101a5f8681581804243e2de56c364d62ca624666d7488267546f11f7adef4a50453fb78732327c83c74476cff44b005d1a78e9d2b068445f93eb53ba6d95f51816cae9966f63f7936717c3f3a0e762fa7a614c6785e803e4a7ef26cc4ba88ba4c5045db81753aa25e8f71f86f4c9a38549414c1f3f48f8da8b65c32242f8f2a8355d3c9ba81ef6da7b226fd7214d00c9f8ed9543140c4d285f9b697f2f2f0a4d57063a65bed209fce2eb901fef47bcac66be05096a761fa9007aeed97161841b1044a608df049dbb9f3d8aefd78a3e88b7b727ced3a0e46a29e941e4e870a6aa9abd94014cff2c2dd65d68256e267a4b0aea1c064b698a0b513ed3f4ca81fcff239550d594d822a39120a7fc2cd1b4967650064ede9cf4f148e6c733e89f586d759b6768ac9ea5e7c6b075b5d654eaa2b13cf87e168ca170c8258a9cb7462432628a1b3bd67875ffc5ec46e492230429a9640f7d6453785642bc8997e43b6ce35391712db51194e66e5ba36646678c1baae24eba3a6de70c76e4d9f980eeb255c2abf74247c45654fd752a108a8ba114c5b74646e234a58de92ddd69749a1eca4bb89ea0a03903ff1b297943f1314e73151d9cefb3aa86739d1ac8c580febc586be77d6c0a7ec0e61113a4e668c734cee23938b4ddcd3cdad86458b10af84bdb1a191dd1a078f07ffe4930379cacdd40cbd5787a792781cabf337e044729e741e205310a01eda5a9a0f172ccdfe1e992489052dbebe8d70ce595e773037d35c5d44b65bcf823f3878e19a0a78ef8d1e59a751631a00bf81d5f92b7a36f9bb416fab53bc104b26b68645f1bc88ecfb11bc0cd90270263894c280f84db9526d52443f8ea80c57c57ac8460a1e5ce31ae3755aa0858663788e9457043514580b7c15b526970fca6e1ae50fda4ce44814bccdeac7eb7aa9c13ea30513f97b68fa3c7dfaf5db5aae9c81c95bd117e40e794892b88101488b42dbbee31e5c4fc8ce6037772d5b4335dd06f7abc91bd9f3483f5a9b7f6bca503595c4be435e7ef6b6f7a1c1ed4e0c3d497b7fd384b8a0e0bb234c8bf5c21edfd91401b67c85f66a6fa3457064b374c731474b65f536d5c03d65dffe70eab702196b6249fdaf42e640d09e6fea931e08994764a7085befd31f5ed7cfc0a396dec9e1d60c00e991825a36ca33e865330cc29ce7ab7b825c9e9e6cef106bb773a8ebdbca74853d64a8bbed4b111a324ff25071a6cdffba1ad59cd5b744a37c91dca7da0935ba48a8526af13c2bd12a4e71c2f5fa9cb3629a63033790e43d0800dae27b9c3eb8a6c1468c3ae56e9e85520108be9d67735c1cabaa94d2bdf2cc20923300ac92f4505a9bddaf81aacb5c5262daa8c1791982c3c78a890e5b63d00122a6a475444a622ac418a56a190fa3e710b5846d175f4c073907035316265c725796280d5ca91c0241cd5fded57500c6af1ecac6994abc990b51a0f41e3e60ed1c2f6b18f7f14d46c185c42457d43192a4107a7d9d97633bb6322ef332fb376ff2d547cea932180b7391d10068addaaa26e5c8c669107ab35e5667f422ba8ff8ab296d8f1f8cc0f4fb12bc8d43210cd64d0386ebe2a0523b8341e077503ed8f1dc631eca054430f2ee31f9196da073fed0141fbca33f32383571c4998e8feb2a0df397ee2616ea5c55a472e3e3a04e53269169c18efb4092bc584947be700eab8a96cb3e96b52caf8afeefd36166fe23e60dfc47b7b15034747e5209212f52c0cbf16e00c5ae2edace439f3f35f3729a703c8bb350912faa3e81e59032048a4da94e588a8011dab4017585fe49f1810a0ed86083df738e2b7c8a60185fd7be8b088adcade5f59a85676c891821798295ca232616e213ca408f00df5fa3c29f81c739d538c0fc1659f2add4efe0810775b96d541a5262d3f9c696de5cf52bcbb9843be77e42ef07e422019bd759d62e5629f274d2855562803161f2bafe2ed90ff0b966cfe891e3387c53e04f61e45de08b23c7c5d3613403124d09c8d9103752c7b1ea2cbc8cd1b4926c3cf781f4c2f8edaadb436aa87388fac294834e9b13f63f025cdd46cb5fe94daaa35a61f1bf01fbfc3d983e50cf014b5fb53377ddf7dacac1173101ff59a29e66bb7eda4c7ec383c0ec0bb3284891dd06d4847c3df44c7debd9ca6bf65275377967532eb7578b5568ebc0fddd2d865f954842f01511143d0e85f27730ce29082b0b0ae3bc292065b14b55c767b9610ff07be57bf17ba43c6f986b60443d8f59356bf96e47aab0364ca6ed980d034f60f601eb163cf35f0be17bb1c46f6514c72575b4d1f6f27bd84e0280c9ff881235c3f6ba15b9c34b85940b6bc4d29c2306f5854a8f2fc17d1f6a3604674bcd996baa47124a99534fb6d2f271f8ec6ca795e34d7275b4bb5d388f78543c36402f0bfa615eb110ec6d215a3afad02b9d6e9bb650d8a45b7161fac5ed3e7e9907e32a2d", 0x1000}}, 0x1006) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r3 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:07:46 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000003f000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:46 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000009090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:46 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x5}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:46 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800d28000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:46 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xac02, @empty}}) [ 1435.805632][T29854] batman_adv: Cannot find parent device [ 1435.875370][T29854] batman_adv: batadv0: Adding interface: gretap1190 03:07:47 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000048000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1435.916006][T29854] batman_adv: batadv0: The MTU of interface gretap1190 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:07:47 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000011090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:47 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001803a28000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1435.981788][T29854] batman_adv: batadv0: Interface activated: gretap1190 03:07:47 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000004c000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:47 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000048090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:47 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000063000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:49 executing program 3: openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) r0 = socket$netlink(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = socket$netlink(0x10, 0x3, 0x0) r4 = socket$netlink(0x10, 0x3, 0x0) r5 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r5, &(0x7f0000000380)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r4, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000008c0)=ANY=[@ANYBLOB="480000001000050700"/20, @ANYRES32=r6, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=@newqdisc={0x2c, 0x24, 0xf1d, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {}, {0xfff1, 0xffff}}, [@qdisc_kind_options=@q_drr={0x8, 0x1, 'drr\x00'}]}, 0x2c}}, 0x0) sendmsg$nl_route_sched(r5, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f00000002c0)=@delchain={0x30, 0x28, 0xf31, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}, {0x0, 0xffff}}, [@filter_kind_options=@f_u32={{0x8, 0x1, 'u32\x00'}, {0x4}}]}, 0x30}}, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r2, 0x89f0, &(0x7f0000000040)={'syztnl1\x00', &(0x7f0000000140)={'syztnl0\x00', r6, 0x8000, 0x40, 0x9, 0x3, {{0x32, 0x4, 0x2, 0x32, 0xc8, 0x68, 0x0, 0x6, 0x29, 0x0, @rand_addr=0x64010102, @multicast2, {[@cipso={0x86, 0x4d, 0x0, [{0x5, 0xd, "0c635a6c593ad0717ea2cc"}, {0x6, 0xb, "35379ae080f4d45616"}, {0x5, 0xf, "bb836c2141cbd49b6f81b9c27d"}, {0x6, 0x10, "3f28de61767460838adff3646d6e"}, {0x0, 0x10, "f249d4407b25a8c89efa9377a420"}]}, @ssrr={0x89, 0x7, 0x51, [@multicast2]}, @end, @rr={0x7, 0xb, 0x73, [@multicast2, @local]}, @cipso={0x86, 0x53, 0x0, [{0x1, 0xd, "5bcf1219c3719cb5ac9455"}, {0x2, 0x7, "eb4d8996d9"}, {0x6, 0x3, "1a"}, {0x6, 0x3, 'G'}, {0x7, 0x5, "94c700"}, {0x2, 0x6, "7b884994"}, {0x3, 0x10, "181c6c242592a24bb96e6aa73ef8"}, {0x2, 0x6, "037ed657"}, {0x0, 0x12, "54ee106f217953493d90e38b33ea4506"}]}]}}}}}) perf_event_open(&(0x7f00000000c0)={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_bp={0x0, 0x1}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r0, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:07:49 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000068000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:49 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001806728000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:49 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000004c090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:49 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x6}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:49 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xad03, @empty}}) [ 1438.072874][T29935] batman_adv: Cannot find parent device [ 1438.128086][T29935] batman_adv: batadv0: Adding interface: gretap1191 03:07:49 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000006c000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:49 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000063090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1438.154865][T29935] batman_adv: batadv0: The MTU of interface gretap1191 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:07:49 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001809428000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1438.271034][T29935] batman_adv: batadv0: Not using interface gretap1191 (retrying later): interface not active 03:07:49 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000068090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:49 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000074000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:49 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180c128000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1439.395954][T29988] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 03:07:50 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) clone(0x23260100, &(0x7f00000000c0)="d74634f0f6f99ed7e37217a29ce4552bf8862449bd5fcee5117686462b8ee0d934b776da0a5bbe326d9d8cca6800e2b293f6679eb5bb77b6cfdade7aad729822040ca0d2b8173423fb4fcc8f04717e328bc1ee8716c1b9dac4ad887556d083b980c9171743524b055a4c997ace0f8b05b5f0b26a75432a27e4724edb317698fb528429e90c136304459e174bfb41507e1d99a80fd49b7d7dbba594194fc83171fb55e9367de1d29b7272231ee2c3f9f5107966c958bf94649f4f", &(0x7f0000000180), &(0x7f00000001c0), &(0x7f0000000680)="8687e59233e6b96f3d8e7b2c8894f01d34a72cfc9da5a889e2416ca404c1d246b759dadfbdef79a482c0ad5fa5c6a4897a46e766b46d989e1366f1d1b5520779cf07b18d5ff31dbbbfdac89755ff995ebaa7c1c770a2f5438a553ac0c057656a63ed0f2f82bb33cee07115930dd6abda3303683fb002303a9d7840b402c9ff0db5c1882a4fdf06a808122a36185dc0cdbda2ce") r2 = syz_open_dev$tty1(0xc, 0x4, 0x1) ioctl$KDGKBTYPE(r2, 0x4b33, &(0x7f0000000000)) ioctl$KDFONTOP_SET_DEF(r2, 0x4b72, &(0x7f0000000040)={0x2, 0x0, 0x20, 0x9, 0x167, &(0x7f0000000280)="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"}) ioctl$TUNSETNOCSUM(r0, 0x400454c8, 0x1) 03:07:50 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000006c090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:50 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000007a000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:50 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180ee28000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:50 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x7}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:50 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xb102, @empty}}) [ 1439.563978][T29999] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1439.698093][T30007] batman_adv: Cannot find parent device 03:07:50 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000074090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1439.770083][T30007] batman_adv: batadv0: Adding interface: gretap1192 [ 1439.785963][T30007] batman_adv: batadv0: The MTU of interface gretap1192 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:07:51 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000e0000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:51 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001804829000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1439.878303][T30007] batman_adv: batadv0: Interface activated: gretap1192 03:07:51 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000007a090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:51 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180e82e000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:51 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000ff000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:53 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000040)='/dev/net/tun\x00', 0x208180, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:07:53 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000e0090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:53 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000100090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:53 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001808834000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:53 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x8}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:53 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xb403, @empty}}) [ 1441.919749][T30082] batman_adv: Cannot find parent device 03:07:53 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000110000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1441.990398][T30082] batman_adv: batadv0: Adding interface: gretap1193 03:07:53 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000200090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1442.028805][T30082] batman_adv: batadv0: The MTU of interface gretap1193 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:07:53 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180283a000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1442.158209][T30082] batman_adv: batadv0: Not using interface gretap1193 (retrying later): interface not active 03:07:53 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000030000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:53 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000300090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:53 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180003f000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:54 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000400090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:54 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000100000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:54 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180c83f000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:54 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x9}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:54 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = syz_open_dev$tty1(0xc, 0x4, 0x1) ioctl$KDGKBTYPE(r1, 0x4b33, &(0x7f0000000000)) ioctl$TCSBRK(r1, 0x5409, 0x1) r2 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x1, 0x0, 0x0, 0x41bf, 0x0, 0xf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r2, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x3, @empty}}) 03:07:54 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xb802, @empty}}) [ 1443.663623][T30160] batman_adv: Cannot find parent device [ 1443.745861][T30160] batman_adv: batadv0: Adding interface: gretap1194 03:07:55 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000500090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:55 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800040000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:55 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000110000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1443.776910][T30160] batman_adv: batadv0: The MTU of interface gretap1194 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1443.821881][T30160] batman_adv: batadv0: Interface activated: gretap1194 03:07:55 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000600090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:55 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000188f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:55 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800240000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:55 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000700090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:55 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090200000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:55 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0xa}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:55 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001806845000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1445.054337][T30209] batman_adv: Cannot find parent device [ 1445.077076][T30209] batman_adv: batadv0: Adding interface: gretap1195 [ 1445.099639][T30209] batman_adv: batadv0: The MTU of interface gretap1195 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1445.135019][T30209] batman_adv: batadv0: Not using interface gretap1195 (retrying later): interface not active 03:07:57 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090300000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:57 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000800090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:57 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800048000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:57 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0xb}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:07:57 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) syz_mount_image$iso9660(&(0x7f0000000040)='iso9660\x00', &(0x7f00000000c0)='./file0\x00', 0x9, 0x5, &(0x7f0000001400)=[{&(0x7f0000000100)="9b5b7ac31158797f995b6b9c44df499055143cf40cac7353713aeca2e7020c68a90b93c77a6960c2ef46fd56d2bd77e91f270dc24e1bf705d1c6c8696f2567bb9142b11260539e1bc8913cef4bd4a53506e6f6fd8dd3b429cc30d03d8e297aa2ab6c37cc624958dd51dd495cb517ac558404d0f2e87e2e44a1dbc14c1da05f1f6ba86851492d4daa57", 0x89, 0x3ff}, {&(0x7f00000001c0)="f81b9b8057508ea5a9117c0c2797244dc94da686a01eb0fae0bf1cdb1a034200a69a3fd5dc710ed733d201b1fb121c566166dbfe1bea86b8e3e8381a114c1d1b445c841fcc9bc10fa8b17670fce0a30f010bf9b65550d53762a20158f3bf7d05adeac6bd6f009a63c75a385ffb3c6db6f6c9c05ec14f62", 0x77, 0x73fe}, {&(0x7f0000000280)="f600d0172720dea27512b40a47efdb6445bd72f6fbf50c12550b92b7da4a926001aa6f893391d5607491adef6fa88306a716e8314cf6ffcf2c7c160da99a91f55e40b1e02b8462090006746e12a68fdff102fd46b770f3b704339b4c94c12cebbdffb19141171b8f10fc", 0x6a, 0x4}, {&(0x7f0000000300)="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", 0x1000, 0x3d0}, {&(0x7f0000001300)="64ab136457635484cdd3451e761e0c21020f142e8eb3f9ee5807a7288f8b59619ebb618b3779853560e6e7a13312e9ebf8c73123ae6cdf6453d7c5ff425d0d284ec948a0718125d26555342c561bc52f65dbdce985d931e1d4f6edd39b7b368b1dab37f93d8c2a68bf059ae5af3f614ed1ecb3961a6001c3366c8e1bdb004fc242b7a5460dd30026c7966ac8ca1ddecf446527bd035aabf83b55cad074b4ef438b9117a48159f67b8c3163ffcce6ec669363487bc03399f9f5fd20fd3f4072a7dc21", 0xc2, 0x2}], 0x42000, &(0x7f0000001480)=ANY=[@ANYBLOB='norock,cruft,mode=0x0000000000000000,nocompress,nocompress,utf8,map=norlal,mode=0x0000000000000003,permit_directio,context=system_u,audit,\x00']) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = dup(r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) syz_kvm_setup_cpu$x86(r3, r5, &(0x7f0000fe6000/0x18000)=nil, &(0x7f0000001580)=[@text64={0x40, &(0x7f0000001540)="430f205166ba4000b808000000ef43c043ef08c421d973d9da0f194900420f01c3ff6f0066420f38dbbf0993a2a5c463cd7d977500000068f30f01ab00080000", 0x40}], 0x1, 0x8, &(0x7f00000015c0)=[@efer], 0x1) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x4e23, @local}}) 03:07:57 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xb903, @empty}}) 03:07:57 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001802948000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1446.021974][T30257] batman_adv: Cannot find parent device 03:07:57 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090400000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1446.112272][T30257] batman_adv: batadv0: Adding interface: gretap1196 03:07:57 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000900090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1446.154406][T30257] batman_adv: batadv0: The MTU of interface gretap1196 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1446.284646][T30257] batman_adv: batadv0: Interface activated: gretap1196 03:07:57 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090500000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:57 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001805648000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:57 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090600000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:57 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000001100090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:58 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001808348000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:07:58 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000003f00090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:07:58 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0xc}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1447.426605][T30311] batman_adv: Cannot find parent device [ 1447.436468][T30311] batman_adv: batadv0: Adding interface: gretap1197 [ 1447.443767][T30311] batman_adv: batadv0: The MTU of interface gretap1197 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1447.471375][T30311] batman_adv: batadv0: Not using interface gretap1197 (retrying later): interface not active 03:08:00 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180b048000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:00 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090700000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:00 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000004800090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:00 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0xd}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:00 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xbd02, @empty}}) 03:08:00 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$VIDIOC_G_EXT_CTRLS(r2, 0xc0205647, &(0x7f0000000200)={0x9a0000, 0xff, 0x8000, r1, 0x0, &(0x7f00000001c0)={0x980919, 0x5, [], @ptr=0x4}}) ioctl$DRM_IOCTL_GET_CAP(r3, 0xc010640c, &(0x7f0000000280)={0x11}) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x2, 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_bp={0x0}, 0x8000, 0x4, 0xb5, 0x3, 0x6, 0x0, 0xfff7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) syz_emit_ethernet(0x149, &(0x7f0000000680)=ANY=[@ANYBLOB="ffffffffffffaaaaaaaaaaaa884700000000677748e3110f06ff20010000000000000000000000000001fc0000000000000000000000000000004e214e21", @ANYRES32=0x41424344, @ANYRES32=0x41424344, @ANYBLOB="618000089078000000000100cf3a4e53c5b7ea065341717453e84d07fad853e664df3e1e4c3a84de921ecda50f070cfe80dc0521e32a7d7b620226454cf0aa3d670e8b4f0bbb6ca8f8fb62191e8cfbc0e431920013b3934ffde2336eb8227353fd5e707bffd0200a7fcc9c80a8466069413aca166004c526827728f8b8cf4717d5acb5c87231f231ae09a9aacdcb4f32f496988bce77bcc6439d4d065c1c75ce678854d0408cdb43f0b4d1c9db4aec78720919832c88497a6899888e78096ea137e527f02ba8f1a94779bdd709f6c72e3baa91acf43aaebe8075c6ed145d900e0e1aa10fa8d2ff4baf334e25dbc0ab60c6d1a47259aadd9ec2bfc36e5bdfe384682e77a6887d1f344dffe720a0bbdb31cfda888aa63716543ab23efc6d0b835a13a4cc5dd25b14984af0110d86b34b75ab25d57c4022f69d0fd371e28f04982760ff67022c6947c6f9ebb1e6ff55386a1a443d0257f05972185c950c5f7775f2736e1d39dcf50c8f3cb9d793ae1e85cb43019af8163703d79706a8d79c0e5370ba35ae216367bab0ef19aab89135be67eb3315bf77e701a9d6eeacf8ec17d6e197a54b1eeed6a3e068a1681af97c67c6f3069cd4bccd8e8887351eea34c64592fc8cee79c3c4d4f1f128a67c507625731066795ae150d99fc32c9211ddf6d7ceb09799ad8139"], &(0x7f0000000540)={0x0, 0x2, [0x624, 0x16f, 0x924, 0xe31]}) r5 = dup(r4) r6 = openat$null(0xffffffffffffff9c, &(0x7f00000002c0)='/dev/null\x00', 0x640201, 0x0) mq_getsetattr(r6, &(0x7f0000000300)={0xee8, 0x4, 0x3f, 0x1}, &(0x7f0000000340)) syz_open_dev$vcsu(&(0x7f0000000380)='/dev/vcsu#\x00', 0x0, 0x60040) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, 0x0) setsockopt$inet_sctp_SCTP_RTOINFO(0xffffffffffffffff, 0x84, 0x0, &(0x7f0000000080)={r7, 0x82000000}, 0x10) getsockopt$inet_sctp_SCTP_GET_ASSOC_STATS(r5, 0x84, 0x70, &(0x7f00000000c0)={r7, @in6={{0xa, 0x4e24, 0x57495b37, @remote, 0x6}}, [0x3, 0x1, 0x1, 0x8, 0x7, 0x80020001, 0xbc8, 0x80, 0x7, 0xb99f, 0xfffffffffffffff9, 0x6, 0xffffffffffffffe1, 0x2, 0x6]}, &(0x7f0000000040)=0x100) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) ioctl$sock_x25_SIOCADDRT(r2, 0x890b, &(0x7f0000000580)={@null=' \x00', 0x0, 'veth1_to_batadv\x00'}) 03:08:00 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000004c00090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1449.222155][T30355] batman_adv: Cannot find parent device 03:08:00 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090900000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1449.309566][T30355] batman_adv: batadv0: Adding interface: gretap1198 03:08:00 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180dd48000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1449.338745][T30355] batman_adv: batadv0: The MTU of interface gretap1198 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:00 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000006300090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1449.480131][T30355] batman_adv: batadv0: Interface activated: gretap1198 03:08:00 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000091100000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:00 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180084b000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:00 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000006800090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:01 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000006c00090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:01 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180004c000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:01 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0xf}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1450.557240][T30410] batman_adv: Cannot find parent device [ 1450.586904][T30410] batman_adv: batadv0: Adding interface: gretap1199 [ 1450.601515][T30410] batman_adv: batadv0: The MTU of interface gretap1199 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1450.663694][T30410] batman_adv: batadv0: Interface activated: gretap1199 03:08:01 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xc003, @empty}}) 03:08:03 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000440)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) r2 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x20, 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, 0x2, @perf_bp={&(0x7f0000000400), 0x4}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = openat$random(0xffffffffffffff9c, &(0x7f0000000140)='/dev/urandom\x00', 0x8000000000000085, 0x0) r4 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000140)='/proc/asound/card0/oss_mixer\x00', 0x0, 0x0) sendfile(r3, r4, 0x0, 0x3ff) r5 = openat$random(0xffffffffffffff9c, &(0x7f0000000140)='/dev/urandom\x00', 0x8000000000000085, 0x0) r6 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000140)='/proc/asound/card0/oss_mixer\x00', 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r8 = dup(r7) ioctl$PERF_EVENT_IOC_ENABLE(r8, 0x8912, 0x400200) ioctl$FBIOGET_FSCREENINFO(r8, 0x4602, &(0x7f00000002c0)) lstat(&(0x7f0000000340)='./file0\x00', &(0x7f0000000380)) sendfile(r5, r6, 0x0, 0x3ff) clock_gettime(0x0, &(0x7f00000001c0)) ppoll(&(0x7f00000000c0)=[{r3, 0xa}, {r6, 0x1405}, {r2, 0xa}, {0xffffffffffffffff, 0x244}], 0x4, &(0x7f0000000200)={0x0, 0x3938700}, &(0x7f0000000280)={[0x1000000000a]}, 0x8) write$binfmt_misc(r1, &(0x7f0000000100)=ANY=[@ANYBLOB="73797a30862f70a0bac50b48aba6ff527cc86e4e5535261495687a466cf6c6494a93f9e100000000000000018b420eaa616bcda7dcad322ba3d51ab09992010e1d7d673c954854089a8b241cdc026609674332a45bba663dae673ff18d126db6e82854c5bbe79f4d0bf90500cb272001016f070f50c893367047120ade7ef0ac0f576ee5472b14d4252d8361b94600a6e0522943e6e0e4eb33590000000000"], 0x11) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) ioctl$sock_bt_bnep_BNEPGETSUPPFEAT(0xffffffffffffffff, 0x800442d4, &(0x7f0000000040)=0x3) 03:08:03 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000007400090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:03 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000094800000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:03 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180a850000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:03 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x10}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:03 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xc402, @empty}}) 03:08:03 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000094c00000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:03 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000007a00090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:03 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001804856000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:04 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000096300000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:04 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000e000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:04 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180e85b000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1453.268090][T30466] batman_adv: Cannot find parent device [ 1453.307883][T30466] batman_adv: batadv0: Adding interface: gretap1200 [ 1453.330857][T30466] batman_adv: batadv0: The MTU of interface gretap1200 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1453.402800][T30466] batman_adv: batadv0: Not using interface gretap1200 (retrying later): interface not active 03:08:05 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000096800000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:05 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000ff00090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:05 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800060000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:05 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x13}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:05 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xc503, @empty}}) 03:08:05 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) accept(0xffffffffffffffff, &(0x7f00000003c0)=@pppol2tpv3={0x18, 0x1, {0x0, 0xffffffffffffffff, {0x2, 0x0, @broadcast}}}, &(0x7f0000000440)=0x80) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$wireguard(&(0x7f0000000480)='wireguard\x00') sendmsg$WG_CMD_SET_DEVICE(r3, &(0x7f0000001340)={0x0, 0x0, &(0x7f0000001300)={&(0x7f00000004c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@WGDEVICE_A_FLAGS={0x8, 0x5, 0x2}, @WGDEVICE_A_IFNAME={0x14, 0x2, 'wg0\x00'}]}, 0x30}}, 0x0) sendmsg$WG_CMD_GET_DEVICE(r2, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x40, r4, 0x40f3a7257b7e647e, 0x70bd2a, 0x25dfdbfd, {}, [@WGDEVICE_A_FWMARK={0x8, 0x7, 0x4}, @WGDEVICE_A_PRIVATE_KEY={0x24}]}, 0x40}}, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) [ 1454.662692][T30542] batman_adv: Cannot find parent device [ 1454.770680][T30542] batman_adv: batadv0: Adding interface: gretap1201 03:08:06 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000002000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:06 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000096c00000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1454.814523][T30542] batman_adv: batadv0: The MTU of interface gretap1201 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:06 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001808861000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1454.885354][T30542] batman_adv: batadv0: Interface activated: gretap1201 03:08:06 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000003000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:06 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000097400000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:06 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800063000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:06 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000097a00000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:06 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000004000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:06 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001802867000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:06 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x14}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1455.988135][T30599] batman_adv: Cannot find parent device [ 1456.018261][T30599] batman_adv: batadv0: Adding interface: gretap1202 [ 1456.035190][T30599] batman_adv: batadv0: The MTU of interface gretap1202 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1456.107783][T30599] batman_adv: batadv0: Not using interface gretap1202 (retrying later): interface not active 03:08:08 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xc902, @empty}}) 03:08:08 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r2 = openat$random(0xffffffffffffff9c, &(0x7f0000000140)='/dev/urandom\x00', 0x8000000000000085, 0x0) r3 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000140)='/proc/asound/card0/oss_mixer\x00', 0x0, 0x0) sendfile(r2, r3, 0x0, 0x3ff) ioctl$F2FS_IOC_MOVE_RANGE(r2, 0xc020f509, &(0x7f0000000040)={0xffffffffffffffff, 0x7f, 0x3, 0x6}) ioctl$TUNSETTXFILTER(r4, 0x400454d1, &(0x7f00000000c0)={0x0, 0x3, [@dev={[], 0x21}, @multicast, @broadcast]}) 03:08:08 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800068000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:08 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000005000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:08 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000000009e000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:08 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x15}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:09 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xcc03, @empty}}) [ 1457.897877][T30652] batman_adv: Cannot find parent device 03:08:09 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000006000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:09 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090003000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1457.974191][T30652] batman_adv: batadv0: Adding interface: gretap1203 [ 1457.997791][T30652] batman_adv: batadv0: The MTU of interface gretap1203 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:09 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001801868000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1458.098086][T30652] batman_adv: batadv0: Interface activated: gretap1203 03:08:09 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x16}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:09 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000007000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:09 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090005000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1458.839141][T30682] batman_adv: Cannot find parent device [ 1458.860131][T30682] batman_adv: batadv0: Adding interface: gretap1204 [ 1458.874672][T30682] batman_adv: batadv0: The MTU of interface gretap1204 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1458.909183][T30682] batman_adv: batadv0: Not using interface gretap1204 (retrying later): interface not active 03:08:11 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) bpf$BPF_PROG_ATTACH(0x8, &(0x7f0000000040)={@cgroup=r2, r4, 0x20, 0x5, r6}, 0x14) r7 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r7, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:08:11 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000008000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:11 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001804568000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:11 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090006000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:11 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x18}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:11 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xd002, @empty}}) [ 1460.572393][T30738] batman_adv: Cannot find parent device [ 1460.625057][T30738] batman_adv: batadv0: Adding interface: gretap1205 [ 1460.671544][T30738] batman_adv: batadv0: The MTU of interface gretap1205 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:11 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000009000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:11 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090007000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:12 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001807268000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1460.754397][T30738] batman_adv: batadv0: Not using interface gretap1205 (retrying later): interface not active 03:08:12 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001809f68000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:12 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090009000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:12 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000011000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:14 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) r2 = semget$private(0x0, 0x20000000102, 0x631) semctl$IPC_RMID(r2, 0x0, 0x0) semop(r2, &(0x7f00000001c0)=[{0x1, 0x7}, {0x4, 0x9}, {0x3, 0xfffc, 0x1800}], 0x3) ioctl$TUNSETCARRIER(r0, 0x400454e2, &(0x7f0000000280)) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x40, 0x0, 0x0, 0x41bf, 0x0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0xd}, 0x10}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) mmap$snddsp_control(&(0x7f0000ffc000/0x1000)=nil, 0x1000, 0xa, 0x30, r5, 0x83000000) r6 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) getsockopt$inet_sctp_SCTP_AUTO_ASCONF(0xffffffffffffffff, 0x84, 0x1e, &(0x7f00000002c0), &(0x7f0000000300)=0x4) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) write$P9_RLINK(r6, &(0x7f0000000200)={0x7, 0x47, 0x2}, 0x7) ioctl$FBIOGETCMAP(r6, 0x4604, &(0x7f0000000180)={0x3b61, 0x4, &(0x7f0000000040)=[0x0, 0x0, 0x0, 0x0], &(0x7f00000000c0)=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], &(0x7f0000000100)=[0x0, 0x0, 0x0, 0x0, 0x0], &(0x7f0000000140)=[0x0, 0x0, 0x0, 0x0, 0x0]}) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:08:14 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x1b}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:14 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180cc68000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:14 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090011000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:14 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xd502, @empty}}) 03:08:14 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000048000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1463.300878][T30826] batman_adv: Cannot find parent device 03:08:14 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000004c000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:14 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000094e24000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:14 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180f968000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1463.393969][T30826] batman_adv: batadv0: Adding interface: gretap1206 [ 1463.422833][T30826] batman_adv: batadv0: The MTU of interface gretap1206 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1463.498359][T30826] batman_adv: batadv0: Interface activated: gretap1206 03:08:14 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000000009003f000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:14 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000063000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:14 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180006c000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:16 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000280)={'tunl0\x00', 0x20}) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'bridge_slave_1\x00', 0xa732}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) sendmsg$IPCTNL_MSG_EXP_NEW(r2, &(0x7f0000000240)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000200)={&(0x7f0000000100)={0x100, 0x0, 0x2, 0x303, 0x0, 0x0, {0xa}, [@CTA_EXPECT_TUPLE={0x90, 0x2, 0x0, 0x1, [@CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x1}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x1}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x4}, @CTA_TUPLE_IP={0x2c, 0x1, 0x0, 0x1, @ipv6={{0x14, 0x3, @remote}, {0x14, 0x4, @initdev={0xfe, 0x88, [], 0x0, 0x0}}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x6}}, @CTA_TUPLE_IP={0x2c, 0x1, 0x0, 0x1, @ipv6={{0x14, 0x3, @private0={0xfc, 0x0, [], 0x1}}, {0x14, 0x4, @mcast2}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x2f}}]}, @CTA_EXPECT_MASTER={0x38, 0x1, 0x0, 0x1, [@CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x6}}, @CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @local}, {0x8, 0x2, @initdev={0xac, 0x1e, 0x1, 0x0}}}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x3}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x11}}]}, @CTA_EXPECT_FN={0xa, 0xb, 'Q.931\x00'}, @CTA_EXPECT_TIMEOUT={0x8, 0x4, 0x1, 0x0, 0x9}, @CTA_EXPECT_FN={0x8, 0xb, 'sip\x00'}, @CTA_EXPECT_CLASS={0x8, 0x9, 0x1, 0x0, 0x1bd}]}, 0x100}, 0x1, 0x0, 0x0, 0x24040015}, 0xc0) r3 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x20000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x6a30}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:08:16 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090048000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:16 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000068000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:16 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180c86c000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:16 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x1e}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:16 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xdc02, @empty}}) [ 1465.164272][T30902] batman_adv: Cannot find parent device [ 1465.202650][T30902] batman_adv: batadv0: Adding interface: gretap1207 03:08:16 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000006c000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:16 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001806872000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:16 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000000009004c000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1465.225310][T30902] batman_adv: batadv0: The MTU of interface gretap1207 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1465.384331][T30902] batman_adv: batadv0: Not using interface gretap1207 (retrying later): interface not active 03:08:16 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800074000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:16 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000074000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:16 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000000009244e000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:17 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000007a000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:17 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800878000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:17 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090063000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:17 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x25}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:17 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xe102, @empty}}) 03:08:17 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) setsockopt$netrom_NETROM_N2(r2, 0x103, 0x3, &(0x7f0000000040)=0x6, 0x4) timer_create(0x0, &(0x7f0000000000)={0x0, 0x14, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000200)=0x0) timer_settime(r3, 0x0, &(0x7f0000000180)={{0x0, 0x989680}, {0x0, 0x1c9c380}}, 0x0) timer_gettime(r3, &(0x7f00000000c0)) r4 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r4, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) [ 1466.820369][T30970] batman_adv: Cannot find parent device 03:08:18 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000e0000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:18 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090068000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:18 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180007a000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1466.907888][T30970] batman_adv: batadv0: Adding interface: gretap1208 [ 1466.925264][T30970] batman_adv: batadv0: The MTU of interface gretap1208 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1467.016505][T30970] batman_adv: batadv0: Interface activated: gretap1208 03:08:18 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000030000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:18 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000050000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:18 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000000009006c000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:18 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180a87d000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:18 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000060000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:18 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090074000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:19 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x3d}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1468.237615][T31023] batman_adv: Cannot find parent device [ 1468.269685][T31023] batman_adv: batadv0: Adding interface: gretap1209 [ 1468.284265][T31023] batman_adv: batadv0: The MTU of interface gretap1209 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1468.378219][T31023] batman_adv: batadv0: Interface activated: gretap1209 03:08:19 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xe802, @empty}}) 03:08:22 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = dup(r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x10, 0x0, 0x0, 0x0, 0x45bf, 0x1380, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x0, @perf_bp={0x0}, 0x408, 0x4, 0x0, 0x0, 0x3}, 0x0, 0xffffffffffffffff, r3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:08:22 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001804883000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:22 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000000009007a000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:22 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000070000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:22 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x47}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:22 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xed02, @empty}}) [ 1471.121087][T31071] batman_adv: Cannot find parent device [ 1471.227344][T31071] batman_adv: batadv0: Adding interface: gretap1210 03:08:22 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000090000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:22 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000000900e0000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1471.255313][T31071] batman_adv: batadv0: The MTU of interface gretap1210 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:22 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800788000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1471.370779][T31071] batman_adv: batadv0: Interface activated: gretap1210 03:08:22 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000110000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:22 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000001288f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:22 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001803488000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:23 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000007f88f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:23 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000003f0000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:23 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001806188000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:23 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x63}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:23 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xf103, @empty}}) [ 1472.801240][T31148] batman_adv: Cannot find parent device 03:08:24 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090002000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:24 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000480000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1472.899886][T31148] batman_adv: batadv0: Adding interface: gretap1211 03:08:24 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001808e88000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1472.931036][T31148] batman_adv: batadv0: The MTU of interface gretap1211 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1473.040747][T31148] batman_adv: batadv0: Interface activated: gretap1211 03:08:24 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090003000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:24 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000004c0000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:24 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180bb88000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:24 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090004000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:24 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180e888000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:24 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000630000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:25 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090005000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:25 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0xa811}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1474.688553][T31215] batman_adv: Cannot find parent device [ 1474.719926][T31215] batman_adv: batadv0: Adding interface: gretap1212 [ 1474.733355][T31215] batman_adv: batadv0: The MTU of interface gretap1212 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1474.823627][T31215] batman_adv: batadv0: Interface activated: gretap1212 03:08:26 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xf402, @empty}}) 03:08:26 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000680000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:26 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090006000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:26 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180888e000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:26 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0xd011}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:26 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000006c0000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1475.307935][T31242] batman_adv: Cannot find parent device 03:08:26 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001802894000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:26 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090007000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1475.389817][T31242] batman_adv: batadv0: Adding interface: gretap1213 [ 1475.404435][T31242] batman_adv: batadv0: The MTU of interface gretap1213 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1475.499373][T31242] batman_adv: batadv0: Interface activated: gretap1213 03:08:26 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090009000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:27 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000740000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:27 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180c899000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:27 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0xd811}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1476.757609][T31286] batman_adv: Cannot find parent device [ 1476.804391][T31286] batman_adv: batadv0: Adding interface: gretap1214 [ 1476.819364][T31286] batman_adv: batadv0: The MTU of interface gretap1214 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1476.918979][T31286] batman_adv: batadv0: Interface activated: gretap1214 03:08:28 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xf902, @empty}}) 03:08:28 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090011000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:28 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000007a0000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:28 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180689f000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:28 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x5f5e0ff}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1477.264146][T31311] batman_adv: Cannot find parent device [ 1477.337241][T31311] batman_adv: batadv0: Adding interface: gretap1215 03:08:28 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018005a0000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:28 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090048000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1477.381794][T31311] batman_adv: batadv0: The MTU of interface gretap1215 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:28 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000e00000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1477.504550][T31311] batman_adv: batadv0: Interface activated: gretap1215 03:08:28 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000ff0000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:28 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018008a5000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:28 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000000009004c000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:29 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000001090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:30 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xff00, @empty}}) 03:08:30 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018023a8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:30 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090063000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:30 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:30 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000002090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:30 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000140)='NET_DM\x00') sendmsg$NET_DM_CMD_STOP(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x14, r1, 0x800, 0x70bd2c, 0x25dfdbfd, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x20044000}, 0x404c800) rt_sigprocmask(0x0, &(0x7f0000000040), &(0x7f00000000c0), 0x8) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r2 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0xfd, 0x0, 0xe000000000000000, 0x48000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffff, 0x0, @perf_config_ext={0x0, 0xf7}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r2, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) [ 1478.933270][T31388] batman_adv: Cannot find parent device [ 1478.991704][T31388] batman_adv: batadv0: Adding interface: gretap1216 [ 1479.010958][T31388] batman_adv: batadv0: The MTU of interface gretap1216 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:30 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000003090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:30 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090068000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:30 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018050a8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1479.097864][T31388] batman_adv: batadv0: Interface activated: gretap1216 03:08:30 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000000009006c000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:30 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000004090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:30 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001807da8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:31 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0xffff, @empty}}) 03:08:31 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090074000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:31 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000005090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:31 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180aaa8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:31 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x2}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1480.807063][T31460] batman_adv: Cannot find parent device [ 1480.856152][T31460] batman_adv: batadv0: Adding interface: gretap1217 [ 1480.889905][T31460] batman_adv: batadv0: The MTU of interface gretap1217 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1481.035907][T31460] batman_adv: batadv0: Not using interface gretap1217 (retrying later): interface not active 03:08:32 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:08:32 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000006090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:32 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000000009007a000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:32 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180d7a8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:32 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x3}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:33 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000007090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:33 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180a8aa000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1481.870328][T31506] batman_adv: Cannot find parent device [ 1481.906171][T31506] batman_adv: batadv0: Adding interface: gretap1218 [ 1481.927691][T31506] batman_adv: batadv0: The MTU of interface gretap1218 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1482.055920][T31506] batman_adv: batadv0: Interface activated: gretap1218 03:08:33 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:08:33 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000000900e0000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:33 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000008090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:33 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018048b0000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:33 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000009090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:35 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180e8b5000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:35 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000030888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:35 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000011090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:35 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x4}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:35 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r2 = openat$vsock(0xffffffffffffff9c, &(0x7f00000005c0)='/dev/vsock\x00', 0x200200, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) getsockopt$sock_cred(r3, 0x1, 0x11, &(0x7f0000caaffb), &(0x7f0000cab000)=0x1) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400204) getsockopt$inet_sctp_SCTP_AUTO_ASCONF(r6, 0x84, 0x1e, &(0x7f0000000040), &(0x7f00000000c0)=0x4) r7 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x400200) ioctl$sock_kcm_SIOCKCMATTACH(r2, 0x89e0, &(0x7f0000000600)={r3, r7}) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r9 = dup(r8) ioctl$PERF_EVENT_IOC_ENABLE(r9, 0x8912, 0x400200) setsockopt$SO_J1939_FILTER(r9, 0x6b, 0x1, &(0x7f0000000100)=[{0x3, 0x1, {0x1, 0xff, 0x4}, {0x1, 0xff, 0x4}, 0xff, 0xff}, {0x1, 0x1, {0x2, 0xff}, {0x2, 0x0, 0x1}, 0x2, 0x1}], 0x40) 03:08:35 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x2}}) [ 1484.097863][T31591] batman_adv: Cannot find parent device [ 1484.123987][T31591] batman_adv: batadv0: Adding interface: gretap1219 [ 1484.139876][T31591] batman_adv: batadv0: The MTU of interface gretap1219 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1484.226535][T31591] batman_adv: batadv0: Not using interface gretap1219 (retrying later): interface not active 03:08:35 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000050888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:35 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000003f090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:35 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800bb8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:35 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x5}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:35 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x3}}) 03:08:35 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000048090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1484.592242][T31622] batman_adv: Cannot find parent device 03:08:35 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000060888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:35 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018088bb000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1484.691071][T31622] batman_adv: batadv0: Adding interface: gretap1220 [ 1484.727895][T31622] batman_adv: batadv0: The MTU of interface gretap1220 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1484.892832][T31622] batman_adv: batadv0: Interface activated: gretap1220 03:08:36 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000070888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:36 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000004c090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:38 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000090888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:38 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018028c1000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:38 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000063090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:38 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x6}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:38 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000200)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = semget$private(0x0, 0x20000000102, 0x0) semctl$IPC_RMID(r1, 0x0, 0x0) semctl$GETALL(r1, 0x0, 0xd, &(0x7f00000000c0)=""/252) r2 = socket$netlink(0x10, 0x3, 0x0) ioctl$TUNATTACHFILTER(0xffffffffffffffff, 0x401054d5, &(0x7f00000001c0)={0x2, &(0x7f0000000040)=[{0x3, 0x5, 0x3f, 0x8}, {0x8, 0x3f, 0x2, 0x4}]}) perf_event_open(&(0x7f000001d000)={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, 0x40000000, 0x0, @perf_bp={0x0, 0x2}, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x1af4}, 0x0, 0xe, 0xffffffffffffffff, 0x2) ioctl$sock_inet_SIOCSIFADDR(r2, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) ioctl$SG_SET_KEEP_ORPHAN(r4, 0x2287, &(0x7f0000000080)=0x20) 03:08:38 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x4}}) [ 1486.950283][T31697] batman_adv: Cannot find parent device [ 1486.995731][T31697] batman_adv: batadv0: Adding interface: gretap1221 [ 1487.015039][T31697] batman_adv: batadv0: The MTU of interface gretap1221 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:38 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000110888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:38 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000068090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:38 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180c8c6000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1487.135141][T31697] batman_adv: batadv0: Not using interface gretap1221 (retrying later): interface not active 03:08:38 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000000009004e240888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:38 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000006c090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:38 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018005c8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:38 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000000900003f0888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:38 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000074090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:39 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018012c8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:39 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x7}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1488.422731][T31761] batman_adv: Cannot find parent device [ 1488.451902][T31761] batman_adv: batadv0: Adding interface: gretap1222 [ 1488.479914][T31761] batman_adv: batadv0: The MTU of interface gretap1222 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1488.537114][T31761] batman_adv: batadv0: Interface activated: gretap1222 03:08:40 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) r2 = openat$dlm_plock(0xffffffffffffff9c, &(0x7f0000000040)='/dev/dlm_plock\x00', 0x402, 0x0) getsockopt$bt_BT_SNDMTU(r2, 0x112, 0xc, &(0x7f00000000c0)=0x100, &(0x7f0000000100)=0x2) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:08:40 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000480888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:40 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c0000000000007a090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:40 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001803fc8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:40 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x8}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:40 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x5}}) [ 1489.680078][T31805] batman_adv: Cannot find parent device 03:08:40 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000000900004c0888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:40 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000e0090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1489.761696][T31805] batman_adv: batadv0: Adding interface: gretap1223 03:08:41 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001806cc8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1489.780763][T31805] batman_adv: batadv0: The MTU of interface gretap1223 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1489.911662][T31805] batman_adv: batadv0: Not using interface gretap1223 (retrying later): interface not active 03:08:41 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000000900244e0888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:41 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000ff090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:41 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018099c8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:43 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r2 = socket$inet6_mptcp(0xa, 0x1, 0x106) r3 = openat$vga_arbiter(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vga_arbiter\x00', 0x4840, 0x0) ioctl$SIOCX25GDTEFACILITIES(r3, 0x89ea, &(0x7f0000000100)) setsockopt$sock_attach_bpf(r2, 0x1, 0x32, &(0x7f00000000c0)=r3, 0x4) 03:08:43 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000630888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:43 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000010000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:43 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180c6c8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:43 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x9}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:43 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x6}}) [ 1492.509146][T31880] batman_adv: Cannot find parent device 03:08:43 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000030000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1492.582363][T31880] batman_adv: batadv0: Adding interface: gretap1224 03:08:43 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000680888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1492.611175][T31880] batman_adv: batadv0: The MTU of interface gretap1224 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:43 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180f3c8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1492.691616][T31880] batman_adv: batadv0: Interface activated: gretap1224 03:08:44 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000020000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:44 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000000900006c0888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:44 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018068cc000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:46 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) setsockopt$bt_BT_VOICE(r2, 0x112, 0xb, &(0x7f0000000040)=0x3, 0x2) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r3 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$TCSBRK(r2, 0x5409, 0xfffffffffffffffa) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:08:46 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000030000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:46 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0xa}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:46 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000740888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:46 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018008d2000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:46 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x7}}) [ 1494.911709][T31954] batman_adv: Cannot find parent device [ 1494.955786][T31954] batman_adv: batadv0: Adding interface: gretap1225 [ 1494.988060][T31954] batman_adv: batadv0: The MTU of interface gretap1225 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:46 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000040000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:46 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000000900007a0888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:46 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180a8d7000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1495.131084][T31954] batman_adv: batadv0: Not using interface gretap1225 (retrying later): interface not active 03:08:46 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000050000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:46 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000e00888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:46 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018048dd000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:48 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000060000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:48 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000020888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:48 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018000e0000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:48 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0xc}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:48 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x8}}) 03:08:48 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) write$FUSE_IOCTL(r2, &(0x7f00000000c0)={0x20, 0x0, 0x1, {0x4, 0x4, 0xfffffc01, 0x401}}, 0x20) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r3 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @multicast2}}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) ioctl$BLKROGET(r5, 0x125e, &(0x7f0000000040)) r6 = socket$netlink(0x10, 0x3, 0x0) move_pages(0x0, 0x2, &(0x7f0000001400)=[&(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ffd000/0x3000)=nil], &(0x7f0000001440)=[0x3, 0xffffffe0, 0x5, 0xffff, 0x8001], &(0x7f0000001480)=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], 0x4) getsockopt$sock_cred(r6, 0x1, 0x11, &(0x7f0000caaffb)={0x0, 0x0, 0x0}, &(0x7f0000cab000)=0xc) r8 = syz_open_dev$vcsn(&(0x7f0000000180)='/dev/vcs#\x00', 0x18, 0x48040) ioctl$IMSETDEVNAME(r8, 0x80184947, &(0x7f00000001c0)={0x2, 'syz1\x00'}) setresgid(0x0, r7, 0x0) getgroups(0x1, &(0x7f0000000100)=[r7]) [ 1497.033185][T32043] batman_adv: Cannot find parent device [ 1497.082338][T32043] batman_adv: batadv0: Adding interface: gretap1226 03:08:48 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000030888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:48 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180e8e2000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:48 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000070000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1497.109207][T32043] batman_adv: batadv0: The MTU of interface gretap1226 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1497.203329][T32043] batman_adv: batadv0: Not using interface gretap1226 (retrying later): interface not active 03:08:48 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000040888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:48 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000080000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:48 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018001e8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:48 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000050888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:49 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018003e8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:49 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000090000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:49 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0xe}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1498.583772][T32101] batman_adv: Cannot find parent device [ 1498.610677][T32101] batman_adv: batadv0: Adding interface: gretap1227 [ 1498.630188][T32101] batman_adv: batadv0: The MTU of interface gretap1227 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1498.687577][T32101] batman_adv: batadv0: Not using interface gretap1227 (retrying later): interface not active 03:08:50 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0xf}}) 03:08:51 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) lsetxattr$trusted_overlay_upper(&(0x7f0000000040)='./file0\x00', &(0x7f00000000c0)='trusted.overlay.upper\x00', &(0x7f0000000100)={0x0, 0xfb, 0x4a, 0x7, 0x0, "2a57d23807edff4cca0bd6a901cff79b", "072be4db3c171a2eacee6e1046c878fe143781ed0aab0654fa05abb768cf9c959206080cc3bd023500754e7ff6e3d7ab4669bdf0ac"}, 0x4a, 0x1) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x2, 0x0, 0x0, 0x41bf, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:08:51 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000060888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:51 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000110000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:51 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001802ee8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:51 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x10}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) [ 1500.252829][T32155] batman_adv: Cannot find parent device [ 1500.295471][T32155] batman_adv: batadv0: Adding interface: gretap1228 [ 1500.325039][T32155] batman_adv: batadv0: The MTU of interface gretap1228 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:51 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001805be8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:51 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x173}}) 03:08:51 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000480000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1500.403773][T32155] batman_adv: batadv0: Not using interface gretap1228 (retrying later): interface not active 03:08:51 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000070888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:51 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x12}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:51 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018088e8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:51 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000004c0000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1501.215121][T32176] batman_adv: Cannot find parent device [ 1501.235796][T32176] batman_adv: batadv0: Adding interface: gretap1229 [ 1501.242913][T32176] batman_adv: batadv0: The MTU of interface gretap1229 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1501.269953][T32176] batman_adv: batadv0: Not using interface gretap1229 (retrying later): interface not active 03:08:53 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) r1 = openat$random(0xffffffffffffff9c, &(0x7f0000000140)='/dev/urandom\x00', 0x8000000000000085, 0x0) r2 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000140)='/proc/asound/card0/oss_mixer\x00', 0x0, 0x0) sendfile(r1, r2, 0x0, 0x3ff) ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, &(0x7f0000000040)={{0x0, 0x0, @identifier="837e31341324fb312308cc0c791c532e"}}) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xbf32}) r3 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) r4 = openat$random(0xffffffffffffff9c, &(0x7f0000000140)='/dev/urandom\x00', 0x8000000000000085, 0x0) r5 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000140)='/proc/asound/card0/oss_mixer\x00', 0x0, 0x0) sendfile(r4, r5, 0x0, 0x3ff) ioctl$FIGETBSZ(r5, 0x2, &(0x7f00000000c0)) r6 = openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x22080, 0x0) ioctl$SNDRV_TIMER_IOCTL_START(r6, 0x54a0) 03:08:53 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000090888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:53 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000630000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:53 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180b5e8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:53 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x48}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:53 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x282}}) [ 1502.358678][T32238] batman_adv: Cannot find parent device [ 1502.412908][T32238] batman_adv: batadv0: Adding interface: gretap1230 03:08:53 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000680000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1502.442393][T32238] batman_adv: batadv0: The MTU of interface gretap1230 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:53 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180e2e8000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:53 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000110888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1502.565852][T32238] batman_adv: batadv0: Not using interface gretap1230 (retrying later): interface not active 03:08:54 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000006c0000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:54 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000480888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:54 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018028ee000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:55 executing program 3: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) recvfrom(r0, &(0x7f0000000180)=""/133, 0x85, 0x62, &(0x7f0000000280)=@llc={0x1a, 0x339, 0x69, 0x3f, 0x8, 0x81}, 0x80) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) read$dsp(r1, &(0x7f00000000c0)=""/78, 0x4e) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r3 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r3, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) 03:08:55 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000740000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:55 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000000900004c0888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:55 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="1100000000000000004003000180c8f3000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:55 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x4a}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:55 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x288}}) [ 1504.418158][T32322] batman_adv: Cannot find parent device 03:08:55 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018001f4000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1504.476213][T32322] batman_adv: batadv0: Adding interface: gretap1231 03:08:55 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000007a0000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:55 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000630888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1504.520509][T32322] batman_adv: batadv0: The MTU of interface gretap1231 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1504.551718][T32322] batman_adv: batadv0: Not using interface gretap1231 (retrying later): interface not active 03:08:56 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018068f9000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:56 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000e00000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:56 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000680888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:57 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = socket(0x5, 0x5, 0x2) ioctl$SIOCAX25CTLCON(r3, 0x89e8, &(0x7f00000000c0)={@netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @default, 0x4, 0x3, 0x0, [@remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @null, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @bcast, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x0}]}) r4 = dup(r2) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x4) ioctl$TUNSETIFF(r4, 0x400454ca, &(0x7f0000000040)={'veth0_macvtap\x00', 0x800}) 03:08:57 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000000900006c0888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:57 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000300090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:57 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018000fd000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:57 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x4c}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:08:57 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x28d}}) [ 1506.836051][T32400] batman_adv: Cannot find parent device [ 1506.897202][T32400] batman_adv: batadv0: Adding interface: gretap1232 03:08:58 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="110000000000000000400300018000ff000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:58 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000500090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1506.932527][T32400] batman_adv: batadv0: The MTU of interface gretap1232 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:08:58 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000740888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1507.051468][T32400] batman_adv: batadv0: Not using interface gretap1232 (retrying later): interface not active 03:08:58 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001808004020000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:08:58 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000600090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:08:58 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c000000000000000900007a0888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:00 executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x20003, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) readlink(&(0x7f00000000c0)='./file0\x00', &(0x7f0000000100)=""/201, 0xc9) r1 = socket$netlink(0x10, 0x3, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty}}) ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000040)={'veth1_to_hsr\x00', 0x20}) 03:09:00 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000700090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:00 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000e00888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:00 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800040030000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:09:00 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x60}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:09:00 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x294}}) [ 1509.022757][T32481] batman_adv: Cannot find parent device [ 1509.096822][T32481] batman_adv: batadv0: Adding interface: gretap1233 03:09:00 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000001288f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:00 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000900090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1509.143105][T32481] batman_adv: batadv0: The MTU of interface gretap1233 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:09:00 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000040000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1509.254400][T32481] batman_adv: batadv0: Not using interface gretap1233 (retrying later): interface not active 03:09:00 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000007f88f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:00 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000001100090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:00 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800003400000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:09:02 executing program 3: r0 = gettid() socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) readv(r1, &(0x7f0000001400)=[{&(0x7f00000010c0)=""/247, 0xf7}], 0x1) ppoll(&(0x7f0000000280)=[{r2}], 0x1, 0x0, 0x0, 0x0) ioctl$int_in(r1, 0x5452, &(0x7f0000000140)=0x8) fcntl$setsig(r1, 0xa, 0x12) dup2(r1, r2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = openat$tun(0xffffffffffffff9c, &(0x7f00000001c0)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r4, 0x400454ca, &(0x7f0000000040)={'\x00', 0x10005812}) io_setup(0x20000000002, &(0x7f0000000440)=0x0) io_submit(r5, 0x4, &(0x7f0000000580)=[&(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, r4, &(0x7f0000000080)="1c", 0x1}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0}]) dup3(r3, r4, 0x0) fcntl$setown(r1, 0x8, r0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r7 = fcntl$dupfd(r6, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x400200) tkill(r0, 0x15) 03:09:02 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000003f00090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:02 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000001288f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:02 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000100c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:09:02 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x68}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:09:02 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={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_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x299}}) [ 1511.694897][T32558] batman_adv: Cannot find parent device 03:09:02 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f802", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:02 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000004800090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1511.766143][T32558] batman_adv: batadv0: Adding interface: gretap1234 03:09:03 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000200c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1511.821310][T32558] batman_adv: batadv0: The MTU of interface gretap1234 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1511.940875][T32558] batman_adv: batadv0: Not using interface gretap1234 (retrying later): interface not active 03:09:03 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f803", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:03 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000300c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:09:03 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000004c00090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:06 executing program 3: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) pipe2$9p(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000480)=ANY=[@ANYBLOB="1500000065ffff018000000800395032303030"], 0x15) r2 = dup(0xffffffffffffffff) write$FUSE_BMAP(r2, 0x0, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000200)='9p\x00', 0x0, &(0x7f0000000600)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r1]) lchown(0x0, 0x0, 0x0) getdents(0xffffffffffffffff, 0x0, 0x2) 03:09:06 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f804", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:06 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000400c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) 03:09:06 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000006300090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:06 executing program 0: r0 = socket(0x10, 0x80002, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000180)={'batadv0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=@newlink={0x44, 0x10, 0x401, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x11, 0x6c}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @gretap={{0xb, 0x1, 'gretap\x00'}, {0xc, 0x2, 0x0, 0x1, [@IFLA_GRE_LINK={0x8, 0x1, r4}]}}}, @IFLA_MASTER={0x8, 0xa, r1}]}, 0x44}}, 0x0) 03:09:06 executing program 5: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000240)={'syzkaller1\x00', 0xa732}) r1 = socket$netlink(0x10, 0x3, 0x0) gettid() socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MASTER={0x8, 0xd}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCSIFADDR(r1, 0x8914, &(0x7f0000000000)={'syzkaller1\x00', {0x7, 0x0, @empty=0x2a0}}) [ 1515.728934][T32637] batman_adv: Cannot find parent device [ 1515.754805][T32637] batman_adv: batadv0: Adding interface: gretap1235 03:09:06 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000006800090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1515.782712][T32637] batman_adv: batadv0: The MTU of interface gretap1235 is too small (1462) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. 03:09:07 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f805", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:07 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000006c00090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:07 executing program 4: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) ioctl$sock_kcm_SIOCKCMCLONE(0xffffffffffffffff, 0x89e2, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x2, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x798, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) getpeername$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @multicast}, &(0x7f0000000280)=0x14) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000500c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) [ 1515.956720][T32637] batman_adv: batadv0: Not using interface gretap1235 (retrying later): interface not active 03:09:07 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(&(0x7f0000000200)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) socket$inet_tcp(0x2, 0x1, 0x0) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000000000090000000888f806", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) 03:09:07 executing program 2: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) openat$cgroup_subtree(r0, &(0x7f0000000040)='cgroup.subtree_control\x00', 0x2, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='cgroup.controllers\x00', 0x26e1, 0x0) r2 = socket$kcm(0x2, 0x1000000000000002, 0x0) perf_event_open$cgroup(0x0, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(r2, 0x1, 0x3e, &(0x7f00000002c0)=r1, 0x161) sendmsg$inet(r2, &(0x7f0000007940)={&(0x7f0000000100)={0x2, 0x4e24, @rand_addr=0x20}, 0x10, &(0x7f0000000140)=[{&(0x7f0000000380), 0xff00}], 0x1, &(0x7f0000000840)=ANY=[@ANYBLOB="11000000000000000040030001800000000000c8c60000001c00000000000000000000fd08000000", @ANYRES32=0x0, @ANYBLOB="ac1414bbe0000001000000001c00000000007400090000000888f800", @ANYRES32=0x0, @ANYBLOB="000800000000000000000000240000000000000000000000070000009404000007100900000000000000000000007e00000000001100000000000000000000000100000000000000000000008d9c4b0f7fe86fbcbb8dcc6123ddc87d628b03bce8f6467b169be6e4e2785bb51c52df751a2219f376f5534688ecc8a996cbf7394c73c228ad6044983506a4ea15c00e336dbba266af0486f785b29547a57c617de313094491321e0d700bf6fb265049a3f5bdc5a8e4e503778e1962b3ab011b6d99109c18f3"], 0x98}, 0x0) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000001980)='./cgroup.net/syz0\x00', 0x200002, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, &(0x7f0000000380)='@\x00', &(0x7f00000003c0), 0x0) [ 1560.929853][ T0] NOHZ: local_softirq_pending 08 [ 1750.427314][ T6586] cron invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0 [ 1750.451663][ T6586] CPU: 1 PID: 6586 Comm: cron Not tainted 5.8.0-syzkaller #0 [ 1750.459040][ T6586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1750.469081][ T6586] Call Trace: [ 1750.472349][ T6586] dump_stack+0x18f/0x20d [ 1750.476657][ T6586] dump_header+0x106/0x60f [ 1750.481048][ T6586] oom_kill_process.cold+0x10/0x15 [ 1750.486147][ T6586] out_of_memory+0x326/0x1340 [ 1750.490861][ T6586] ? oom_killer_disable+0x270/0x270 [ 1750.496036][ T6586] ? mutex_trylock+0x246/0x2c0 [ 1750.500772][ T6586] ? __alloc_pages_slowpath.constprop.0+0xcc5/0x2860 [ 1750.507434][ T6586] __alloc_pages_slowpath.constprop.0+0x2179/0x2860 [ 1750.514036][ T6586] ? warn_alloc+0x120/0x120 [ 1750.518536][ T6586] ? fs_reclaim_release+0xa3/0x160 [ 1750.523643][ T6586] ? lock_is_held_type+0xbb/0xf0 [ 1750.528570][ T6586] ? find_get_entry+0x3b4/0x8a0 [ 1750.533408][ T6586] __alloc_pages_nodemask+0x62b/0x810 [ 1750.538755][ T6586] ? __alloc_pages_slowpath.constprop.0+0x2860/0x2860 [ 1750.545509][ T6586] ? page_cache_readahead_unbounded+0x572/0x850 [ 1750.551733][ T6586] ? __lock_page_or_retry+0x650/0x650 [ 1750.557082][ T6586] alloc_pages_current+0x187/0x280 [ 1750.562179][ T6586] __page_cache_alloc+0x31e/0x450 [ 1750.567189][ T6586] pagecache_get_page+0x2a6/0xf70 [ 1750.572204][ T6586] ? __do_page_cache_readahead+0xc2/0xf0 [ 1750.577842][ T6586] filemap_fault+0x1a99/0x2ad0 [ 1750.582608][ T6586] ext4_filemap_fault+0x87/0xb6 [ 1750.587456][ T6586] __do_fault+0x10d/0x4d0 [ 1750.591783][ T6586] handle_mm_fault+0x37a3/0x43f0 [ 1750.596722][ T6586] ? apply_to_existing_page_range+0x40/0x40 [ 1750.602617][ T6586] ? vmacache_update+0xce/0x140 [ 1750.607454][ T6586] do_user_addr_fault+0x5a2/0xd00 [ 1750.612588][ T6586] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 1750.618112][ T6586] exc_page_fault+0xa8/0x160 [ 1750.622689][ T6586] ? asm_exc_page_fault+0x8/0x30 [ 1750.627660][ T6586] asm_exc_page_fault+0x1e/0x30 [ 1750.632500][ T6586] RIP: 0033:0x7f5ce7254270 [ 1750.636911][ T6586] Code: Bad RIP value. [ 1750.640950][ T6586] RSP: 002b:00007ffe7e378218 EFLAGS: 00010246 [ 1750.646990][ T6586] RAX: 0000000000000000 RBX: fffffffffffffeb0 RCX: 00007f5ce7254270 [ 1750.654936][ T6586] RDX: 00007ffe7e3d1080 RSI: 00007ffe7e378220 RDI: 00007ffe7e378220 [ 1750.662886][ T6586] RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000001 [ 1750.670840][ T6586] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 1750.678789][ T6586] R13: 00007ffe7e378370 R14: 0000000000000000 R15: 0000000000000000 [ 1750.696910][ T6586] Mem-Info: [ 1750.700236][ T6586] active_anon:117545 inactive_anon:4159 isolated_anon:0 [ 1750.700236][ T6586] active_file:1 inactive_file:2 isolated_file:0 [ 1750.700236][ T6586] unevictable:0 dirty:0 writeback:0 [ 1750.700236][ T6586] slab_reclaimable:19030 slab_unreclaimable:1348915 [ 1750.700236][ T6586] mapped:53710 shmem:4395 pagetables:1122 bounce:0 [ 1750.700236][ T6586] free:16070 free_pcp:0 free_cma:0 [ 1750.739985][ T6586] Node 0 active_anon:469948kB inactive_anon:16636kB active_file:0kB inactive_file:8kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:214840kB dirty:0kB writeback:0kB shmem:17580kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 387072kB writeback_tmp:0kB kernel_stack:8224kB all_unreclaimable? no [ 1750.772535][ T6586] Node 1 active_anon:232kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:32kB all_unreclaimable? yes [ 1750.805439][ T6586] Node 0 DMA free:10136kB min:220kB low:272kB high:324kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 1750.836371][ T6586] lowmem_reserve[]: 0 2515 2515 2515 2515 [ 1750.842319][ T6586] Node 0 DMA32 free:27220kB min:35916kB low:44892kB high:53868kB reserved_highatomic:0KB active_anon:469948kB inactive_anon:16636kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2578224kB mlocked:0kB pagetables:4488kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 1750.875448][ T6586] lowmem_reserve[]: 0 0 0 0 0 [ 1750.880143][ T6586] Node 0 Normal free:0kB min:0kB low:0kB high:0kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:0kB mlocked:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 1750.916179][ T6586] lowmem_reserve[]: 0 0 0 0 0 [ 1750.920884][ T6586] Node 1 Normal free:26924kB min:53972kB low:67464kB high:80956kB reserved_highatomic:0KB active_anon:232kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870200kB mlocked:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 1750.953258][ T6586] lowmem_reserve[]: 0 0 0 0 0 [ 1750.957953][ T6586] Node 0 DMA: 0*4kB 1*8kB (U) 1*16kB (U) 0*32kB 0*64kB 1*128kB (U) 1*256kB (U) 1*512kB (U) 1*1024kB (U) 2*2048kB (UM) 1*4096kB (M) = 10136kB [ 1750.978950][ T6586] Node 0 DMA32: 1343*4kB (UME) 786*8kB (UME) 315*16kB (ME) 137*32kB (UME) 29*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 22940kB [ 1751.000118][ T6586] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 1751.012563][ T6586] Node 1 Normal: 7*4kB (UME) 4*8kB (ME) 3*16kB (ME) 4*32kB (UME) 3*64kB (ME) 3*128kB (UME) 0*256kB 1*512kB (E) 1*1024kB (M) 2*2048kB (ME) 5*4096kB (M) = 26924kB [ 1751.029603][ T6586] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 1751.042847][ T6586] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 1751.052220][ T6586] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 1751.065152][ T6586] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 1751.074480][ T6586] 4403 total pagecache pages [ 1751.079058][ T6586] 0 pages in swap cache [ 1751.086622][ T6586] Swap cache stats: add 0, delete 0, find 0/0 [ 1751.092746][ T6586] Free swap = 0kB [ 1751.096458][ T6586] Total swap = 0kB [ 1751.100166][ T6586] 1965979 pages RAM [ 1751.107424][ T6586] 0 pages HighMem/MovableOnly [ 1751.112183][ T6586] 349896 pages reserved [ 1751.116327][ T6586] 0 pages cma reserved [ 1751.120445][ T6586] Unreclaimable slab info: [ 1751.153490][ T6586] Name Used Total [ 1751.159852][ T6586] pid_2 12KB 90KB [ 1751.191634][ T6586] bio-3 0KB 7KB [ 1751.197729][ T6586] batadv_tl_cache 4KB 8KB [ 1751.210096][ T6586] p9_req_t 1KB 8KB [ 1751.216795][ T6586] TIPC 11KB 19KB [ 1751.222915][ T6586] rds_tcp_connection 5KB 7KB [ 1751.229069][ T6586] rds_connection 0KB 3KB [ 1751.243010][ T6586] SCTPv6 14KB 25KB [ 1751.249094][ T6586] DCCPv6 18KB 31KB [ 1751.259417][ T6586] DCCP 17KB 21KB [ 1751.269027][ T6586] RXRPC 11KB 20KB [ 1751.278572][ T6586] rxrpc_call_jar 87KB 90KB [ 1751.288042][ T6586] bridge_fdb_cache 8KB 11KB [ 1751.300256][ T6586] fib6_nodes 476KB 484KB [ 1751.314484][ T6586] ip6_dst_cache 287KB 408KB [ 1751.320557][ T6586] RAWv6 73KB 73KB [ 1751.326683][ T6586] UDPv6 63KB 73KB [ 1751.345295][ T6586] TCPv6 24KB 30KB [ 1751.351378][ T6586] nf_conntrack 7KB 26KB [ 1751.358741][ T6586] sd_ext_cdb 0KB 7KB [ 1751.365768][ T6586] scsi_sense_cache 1056KB 1064KB [ 1751.384358][ T6586] virtio_scsi_cmd 16KB 16KB [ 1751.390457][ T6586] sgpool-128 8KB 8KB [ 1751.405188][ T6586] sgpool-64 4KB 12KB [ 1751.411258][ T6586] sgpool-32 42KB 47KB [ 1751.417384][ T6586] sgpool-16 8KB 11KB [ 1751.436537][ T6586] sgpool-8 7KB 11KB [ 1751.448748][ T6586] mqueue_inode_cache 10KB 15KB [ 1751.456134][ T6586] f2fs_bio_post_read_ctx 16KB 16KB [ 1751.466138][ T6586] jfs_mp 7KB 7KB [ 1751.479878][ T6586] cifs_small_rq 15KB 16KB [ 1751.489439][ T6586] cifs_request 67KB 67KB [ 1751.499002][ T6586] cifs_mpx_ids 0KB 8KB [ 1751.508597][ T6586] nfs_commit_data 3KB 7KB [ 1751.518041][ T6586] nfs_write_data 34KB 44KB [ 1751.530363][ T6586] ext4_system_zone 1KB 7KB [ 1751.543944][ T6586] ext4_bio_post_read_ctx 15KB 15KB [ 1751.550478][ T6586] bio-2 1KB 7KB [ 1751.556623][ T6586] pid_namespace 1KB 7KB [ 1751.572592][ T6586] rpc_buffers 17KB 25KB [ 1751.578669][ T6586] rpc_tasks 2KB 7KB [ 1751.585943][ T6586] UNIX 65KB 93KB [ 1751.598282][ T6586] UDP-Lite 1KB 3KB [ 1751.611719][ T6586] tcp_bind_bucket 1KB 4KB [ 1751.617788][ T6586] inet_peer_cache 0KB 4KB [ 1751.630044][ T6586] ip_fib_trie 25KB 27KB [ 1751.643725][ T6586] ip_fib_alias 118KB 122KB [ 1751.649794][ T6586] ip_dst_cache 11KB 44KB [ 1751.655884][ T6586] RAW 43KB 54KB [ 1751.674727][ T6586] UDP 57KB 63KB [ 1751.680804][ T6586] TCP 8KB 11KB [ 1751.687832][ T6586] hugetlbfs_inode_cache 3KB 7KB [ 1751.695131][ T6586] fscache_cookie_jar 1KB 7KB [ 1751.701281][ T6586] bio-1 12KB 15KB [ 1751.720055][ T6586] eventpoll_pwq 7KB 27KB [ 1751.727384][ T6586] eventpoll_epi 13KB 35KB [ 1751.733476][ T6586] inotify_inode_mark 5KB 23KB [ 1751.739623][ T6586] bio_crypt_ctx 7KB 7KB [ 1751.755296][ T6586] request_queue 154KB 154KB [ 1751.761363][ T6586] blkdev_ioc 10KB 11KB [ 1751.775064][ T6586] bio-0 119KB 127KB [ 1751.781142][ T6586] biovec-max 599KB 599KB [ 1751.787262][ T6586] biovec-64 39KB 39KB [ 1751.808111][ T6586] biovec-16 3KB 3KB [ 1751.814220][ T6586] bio_integrity_payload 1KB 7KB [ 1751.820627][ T6586] khugepaged_mm_slot 2KB 23KB [ 1751.839475][ T6586] user_namespace 0KB 3KB [ 1751.846818][ T6586] uid_cache 0KB 4KB [ 1751.852923][ T6586] dmaengine-unmap-256 2KB 6KB [ 1751.859155][ T6586] dmaengine-unmap-128 1KB 3KB [ 1751.876402][ T6586] dmaengine-unmap-16 0KB 4KB [ 1751.882612][ T6586] dmaengine-unmap-2 0KB 3KB [ 1751.888670][ T6586] QIPCRTR 1KB 6KB [ 1751.907530][ T6586] skbuff_fclone_cache 30KB 30KB [ 1751.915844][ T6586] skbuff_head_cache 352571KB 352575KB [ 1751.921960][ T6586] configfs_dir_cache 1KB 8KB [ 1751.928110][ T6586] file_lock_cache 0KB 3KB [ 1751.947178][ T6586] file_lock_ctx 8KB 11KB [ 1751.959511][ T6586] fsnotify_mark_connector 2KB 16KB [ 1751.967345][ T6586] net_namespace 43KB 43KB [ 1751.979675][ T6586] task_delay_info 55KB 281KB [ 1751.989853][ T6586] taskstats 4KB 25KB [ 1751.995974][ T6586] proc_dir_entry 1100KB 1110KB [ 1752.014803][ T6586] seq_file 2KB 15KB [ 1752.020872][ T6586] sigqueue 11KB 11KB [ 1752.029043][ T6586] shmem_inode_cache 8081KB 8254KB [ 1752.035141][ T6586] kernfs_iattrs_cache 9KB 11KB [ 1752.041375][ T6586] kernfs_node_cache 45365KB 45656KB [ 1752.060185][ T6586] mnt_cache 123KB 135KB [ 1752.067504][ T6586] filp 372KB 1083KB [ 1752.073608][ T6586] names_cache 114KB 114KB [ 1752.079669][ T6586] iint_cache 95KB 98KB [ 1752.095480][ T6586] lsm_file_cache 65KB 523KB [ 1752.102206][ T6586] key_jar 7KB 11KB [ 1752.108268][ T6586] uts_namespace 2KB 7KB [ 1752.121273][ T6586] nsproxy 1KB 7KB [ 1752.141216][ T6586] vm_area_struct 536KB 1407KB [ 1752.147964][ T6586] mm_struct 72KB 236KB [ 1752.160190][ T6586] fs_cache 10KB 116KB [ 1752.173891][ T6586] files_cache 39KB 131KB [ 1752.179958][ T6586] signal_cache 420KB 910KB [ 1752.186065][ T6586] sighand_cache 573KB 672KB [ 1752.210680][ T6586] task_struct 1774KB 1774KB [ 1752.216813][ T6586] cred_jar 77KB 544KB [ 1752.246718][ T6586] anon_vma_chain 121KB 586KB [ 1752.254001][ T6586] anon_vma 134KB 292KB [ 1752.260065][ T6586] pid 76KB 303KB [ 1752.285043][ T6586] Acpi-Operand 156KB 194KB [ 1752.291116][ T6586] Acpi-ParseExt 9KB 11KB [ 1752.299291][ T6586] Acpi-Parse 41KB 47KB [ 1752.305420][ T6586] Acpi-State 52KB 63KB [ 1752.311484][ T6586] Acpi-Namespace 23KB 27KB [ 1752.330191][ T6586] numa_policy 0KB 3KB [ 1752.337402][ T6586] trace_event_file 370KB 370KB [ 1752.343521][ T6586] ftrace_event_field 512KB 515KB [ 1752.349666][ T6586] pool_workqueue 132KB 136KB [ 1752.370037][ T6586] vmap_area 700KB 791KB [ 1752.376135][ T6586] debug_objects_cache 6563KB 6565KB [ 1752.396125][ T6586] page->ptl 135KB 618KB [ 1752.402290][ T6586] kmalloc-4M 4096KB 4096KB [ 1752.408355][ T6586] kmalloc-512k 4096KB 4096KB [ 1752.427109][ T6586] kmalloc-256k 4096KB 4096KB [ 1752.441449][ T6586] kmalloc-128k 5632KB 5632KB [ 1752.447584][ T6586] kmalloc-64k 6912KB 7040KB [ 1752.467129][ T6586] kmalloc-32k 3584KB 3584KB [ 1752.480829][ T6586] kmalloc-16k 1440KB 1536KB [ 1752.499050][ T6586] kmalloc-8k 66848KB 66896KB [ 1752.508125][ T6586] kmalloc-4k 1525688KB 1525688KB [ 1752.514242][ T6586] kmalloc-2k 1857140KB 1857140KB [ 1752.520299][ T6586] kmalloc-1k 944440KB 944440KB [ 1752.542358][ T6586] kmalloc-512 498600KB 498600KB [ 1752.548431][ T6586] kmalloc-256 10260KB 10292KB [ 1752.562604][ T6586] kmalloc-128 1724KB 1800KB [ 1752.568670][ T6586] kmalloc-96 2151KB 2240KB [ 1752.589351][ T6586] kmalloc-64 5144KB 5468KB [ 1752.598976][ T6586] kmalloc-32 2895KB 2976KB [ 1752.621144][ T6586] kmalloc-192 2331KB 2668KB [ 1752.628467][ T6586] kmem_cache 121KB 128KB [ 1752.640797][ T6586] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/,task=syz-executor.5,pid=18883,uid=0 [ 1752.672075][ T6586] Out of memory: Killed process 18883 (syz-executor.5) total-vm:93548kB, anon-rss:2220kB, file-rss:34816kB, shmem-rss:0kB, UID:0 pgtables:136kB oom_score_adj:1000 [ 1752.725152][ T3900] systemd-udevd invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=-1000 [ 1752.758803][ T3900] CPU: 0 PID: 3900 Comm: systemd-udevd Not tainted 5.8.0-syzkaller #0 [ 1752.766961][ T3900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1752.777004][ T3900] Call Trace: [ 1752.780277][ T3900] dump_stack+0x18f/0x20d [ 1752.784587][ T3900] dump_header+0x106/0x60f [ 1752.788981][ T3900] oom_kill_process.cold+0x10/0x15 [ 1752.794112][ T3900] out_of_memory+0x326/0x1340 [ 1752.798772][ T3900] ? oom_killer_disable+0x270/0x270 [ 1752.803988][ T3900] ? mutex_trylock+0x246/0x2c0 [ 1752.808762][ T3900] ? __alloc_pages_slowpath.constprop.0+0xcc5/0x2860 [ 1752.815412][ T3900] __alloc_pages_slowpath.constprop.0+0x2179/0x2860 [ 1752.821986][ T3900] ? warn_alloc+0x120/0x120 [ 1752.826467][ T3900] ? fs_reclaim_release+0xa3/0x160 [ 1752.831562][ T3900] ? lock_is_held_type+0xbb/0xf0 [ 1752.836471][ T3900] ? find_get_entry+0x3b4/0x8a0 [ 1752.841297][ T3900] __alloc_pages_nodemask+0x62b/0x810 [ 1752.846647][ T3900] ? __alloc_pages_slowpath.constprop.0+0x2860/0x2860 [ 1752.853386][ T3900] ? page_cache_readahead_unbounded+0x572/0x850 [ 1752.859603][ T3900] ? __lock_page_or_retry+0x650/0x650 [ 1752.864950][ T3900] alloc_pages_current+0x187/0x280 [ 1752.870042][ T3900] __page_cache_alloc+0x31e/0x450 [ 1752.875045][ T3900] pagecache_get_page+0x2a6/0xf70 [ 1752.880052][ T3900] ? __do_page_cache_readahead+0xc2/0xf0 [ 1752.885661][ T3900] filemap_fault+0x1a99/0x2ad0 [ 1752.890415][ T3900] ext4_filemap_fault+0x87/0xb6 [ 1752.895241][ T3900] __do_fault+0x10d/0x4d0 [ 1752.899551][ T3900] handle_mm_fault+0x37a3/0x43f0 [ 1752.904468][ T3900] ? apply_to_existing_page_range+0x40/0x40 [ 1752.910340][ T3900] ? vmacache_update+0xce/0x140 [ 1752.915167][ T3900] do_user_addr_fault+0x5a2/0xd00 [ 1752.920169][ T3900] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 1752.925690][ T3900] exc_page_fault+0xa8/0x160 [ 1752.930254][ T3900] ? asm_exc_page_fault+0x8/0x30 [ 1752.935177][ T3900] asm_exc_page_fault+0x1e/0x30 [ 1752.940004][ T3900] RIP: 0033:0x7fcb2b6c32e3 [ 1752.944410][ T3900] Code: Bad RIP value. [ 1752.948449][ T3900] RSP: 002b:00007ffcbc04b3d8 EFLAGS: 00010246 [ 1752.954489][ T3900] RAX: 0000000000000001 RBX: 000055e47ccd89c0 RCX: 00007fcb2b6c32e3 [ 1752.962450][ T3900] RDX: 0000000000000009 RSI: 00007ffcbc04b3e0 RDI: 000000000000000a [ 1752.970399][ T3900] RBP: 00007ffcbc04b550 R08: 000000000000ffff R09: 00007ffcbc17f0f0 [ 1752.978348][ T3900] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcbc04b3e0 [ 1752.986296][ T3900] R13: 0000000000000001 R14: ffffffffffffffff R15: 0000000000000000 [ 1753.046920][ T3900] Mem-Info: [ 1753.050099][ T3900] active_anon:117009 inactive_anon:4159 isolated_anon:0 [ 1753.050099][ T3900] active_file:9 inactive_file:0 isolated_file:0 [ 1753.050099][ T3900] unevictable:0 dirty:0 writeback:0 [ 1753.050099][ T3900] slab_reclaimable:19030 slab_unreclaimable:1352143 [ 1753.050099][ T3900] mapped:53704 shmem:4395 pagetables:1085 bounce:0 [ 1753.050099][ T3900] free:13107 free_pcp:288 free_cma:0 [ 1753.160557][ T3900] Node 0 active_anon:467804kB inactive_anon:16636kB active_file:20kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:214816kB dirty:0kB writeback:0kB shmem:17580kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 387072kB writeback_tmp:0kB kernel_stack:8224kB all_unreclaimable? yes [ 1753.231845][ T3900] Node 1 active_anon:232kB inactive_anon:0kB active_file:16kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:32kB all_unreclaimable? yes [ 1753.301529][ T3900] Node 0 DMA free:10136kB min:220kB low:272kB high:324kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 1753.361515][ T3900] lowmem_reserve[]: 0 2515 2515 2515 2515 [ 1753.367268][ T3900] Node 0 DMA32 free:13380kB min:62540kB low:71516kB high:80492kB reserved_highatomic:0KB active_anon:467804kB inactive_anon:16636kB active_file:20kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2578224kB mlocked:0kB pagetables:4340kB bounce:0kB free_pcp:1240kB local_pcp:964kB free_cma:0kB [ 1753.432585][ T3900] lowmem_reserve[]: 0 0 0 0 0 [ 1753.437301][ T3900] Node 0 Normal free:0kB min:0kB low:0kB high:0kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:0kB mlocked:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 1753.501532][ T3900] lowmem_reserve[]: 0 0 0 0 0 [ 1753.506245][ T3900] Node 1 Normal free:25448kB min:53972kB low:67464kB high:80956kB reserved_highatomic:0KB active_anon:232kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870200kB mlocked:0kB pagetables:0kB bounce:0kB free_pcp:452kB local_pcp:240kB free_cma:0kB [ 1753.571520][ T3900] lowmem_reserve[]: 0 0 0 0 0 [ 1753.576229][ T3900] Node 0 DMA: 0*4kB 1*8kB (U) 1*16kB (U) 0*32kB 0*64kB 1*128kB (U) 1*256kB (U) 1*512kB (U) 1*1024kB (U) 2*2048kB (UM) 1*4096kB (M) = 10136kB [ 1753.611477][ T3900] Node 0 DMA32: 1127*4kB (UME) 489*8kB (ME) 164*16kB (ME) 60*32kB (ME) 1*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13412kB [ 1753.641508][ T3900] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 1753.662309][ T3900] Node 1 Normal: 5*4kB (ME) 5*8kB (UME) 3*16kB (ME) 4*32kB (UME) 4*64kB (UME) 3*128kB (UME) 1*256kB (U) 1*512kB (E) 1*1024kB (M) 3*2048kB (UME) 4*4096kB (M) = 25196kB [ 1753.701468][ T3900] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 1753.711018][ T3900] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 1753.741478][ T3900] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 1753.751030][ T3900] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 1753.781455][ T3900] 4397 total pagecache pages [ 1753.786053][ T3900] 0 pages in swap cache [ 1753.790201][ T3900] Swap cache stats: add 0, delete 0, find 0/0 [ 1753.811472][ T3900] Free swap = 0kB [ 1753.815205][ T3900] Total swap = 0kB [ 1753.818917][ T3900] 1965979 pages RAM [ 1753.831466][ T3900] 0 pages HighMem/MovableOnly [ 1753.836573][ T3900] 349896 pages reserved [ 1753.840712][ T3900] 0 pages cma reserved [ 1753.861475][ T3900] Unreclaimable slab info: [ 1753.865897][ T3900] Name Used Total [ 1753.881480][ T3900] pid_2 12KB 90KB [ 1753.887597][ T3900] bio-3 0KB 7KB [ 1753.912746][ T3900] batadv_tl_cache 4KB 8KB [ 1753.918833][ T3900] p9_req_t 1KB 8KB [ 1753.937762][ T3900] TIPC 11KB 19KB [ 1753.957809][ T3900] rds_tcp_connection 5KB 7KB [ 1753.971457][ T3900] rds_connection 0KB 3KB [ 1753.977610][ T3900] SCTPv6 14KB 25KB [ 1754.001479][ T3900] DCCPv6 18KB 31KB [ 1754.007562][ T3900] DCCP 17KB 21KB [ 1754.021496][ T3900] RXRPC 11KB 20KB [ 1754.027590][ T3900] rxrpc_call_jar 87KB 90KB [ 1754.052314][ T3900] bridge_fdb_cache 8KB 11KB [ 1754.058404][ T3900] fib6_nodes 476KB 484KB [ 1754.071442][ T3900] ip6_dst_cache 287KB 408KB [ 1754.077515][ T3900] RAWv6 73KB 73KB [ 1754.101448][ T3900] UDPv6 63KB 73KB [ 1754.107528][ T3900] TCPv6 24KB 30KB [ 1754.121466][ T3900] nf_conntrack 7KB 26KB [ 1754.127588][ T3900] sd_ext_cdb 0KB 7KB [ 1754.151483][ T3900] scsi_sense_cache 1056KB 1064KB [ 1754.157558][ T3900] virtio_scsi_cmd 16KB 16KB [ 1754.171477][ T3900] sgpool-128 8KB 8KB [ 1754.177548][ T3900] sgpool-64 4KB 12KB [ 1754.211432][ T3900] sgpool-32 36KB 47KB [ 1754.217508][ T3900] sgpool-16 5KB 11KB [ 1754.241444][ T3900] sgpool-8 4KB 11KB [ 1754.247522][ T3900] mqueue_inode_cache 10KB 15KB [ 1754.261453][ T3900] f2fs_bio_post_read_ctx 16KB 16KB [ 1754.268031][ T3900] jfs_mp 7KB 7KB [ 1754.293758][ T3900] cifs_small_rq 15KB 16KB [ 1754.299825][ T3900] cifs_request 67KB 67KB [ 1754.313337][ T3900] cifs_mpx_ids 0KB 8KB [ 1754.319433][ T3900] nfs_commit_data 3KB 7KB [ 1754.341440][ T3900] nfs_write_data 34KB 44KB [ 1754.347557][ T3900] ext4_system_zone 1KB 7KB [ 1754.371447][ T3900] ext4_bio_post_read_ctx 15KB 15KB [ 1754.377985][ T3900] bio-2 1KB 7KB [ 1754.391446][ T3900] pid_namespace 1KB 7KB [ 1754.397572][ T3900] rpc_buffers 17KB 25KB [ 1754.422273][ T3900] rpc_tasks 2KB 7KB [ 1754.428345][ T3900] UNIX 65KB 93KB [ 1754.442289][ T3900] UDP-Lite 1KB 3KB [ 1754.448356][ T3900] tcp_bind_bucket 1KB 4KB [ 1754.471437][ T3900] inet_peer_cache 0KB 4KB [ 1754.477512][ T3900] ip_fib_trie 25KB 27KB [ 1754.491425][ T3900] ip_fib_alias 118KB 122KB [ 1754.497490][ T3900] ip_dst_cache 11KB 44KB [ 1754.521422][ T3900] RAW 43KB 54KB [ 1754.527500][ T3900] UDP 57KB 63KB [ 1754.541470][ T3900] TCP 8KB 11KB [ 1754.547557][ T3900] hugetlbfs_inode_cache 3KB 7KB [ 1754.572293][ T3900] fscache_cookie_jar 1KB 7KB [ 1754.578455][ T3900] bio-1 12KB 15KB [ 1754.591856][ T3900] eventpoll_pwq 7KB 27KB [ 1754.597925][ T3900] eventpoll_epi 13KB 35KB [ 1754.621458][ T3900] inotify_inode_mark 5KB 23KB [ 1754.627616][ T3900] bio_crypt_ctx 7KB 7KB [ 1754.651429][ T3900] request_queue 154KB 154KB [ 1754.658445][ T3900] blkdev_ioc 7KB 11KB [ 1754.681427][ T3900] bio-0 115KB 127KB [ 1754.687500][ T3900] biovec-max 599KB 599KB [ 1754.702276][ T3900] biovec-64 36KB 39KB [ 1754.708345][ T3900] biovec-16 2KB 3KB [ 1754.731443][ T3900] bio_integrity_payload 1KB 7KB [ 1754.737868][ T3900] khugepaged_mm_slot 2KB 23KB [ 1754.752710][ T3900] user_namespace 0KB 3KB [ 1754.758780][ T3900] uid_cache 0KB 4KB [ 1754.781423][ T3900] dmaengine-unmap-256 2KB 6KB [ 1754.787667][ T3900] dmaengine-unmap-128 1KB 3KB [ 1754.801404][ T3900] dmaengine-unmap-16 0KB 4KB [ 1754.807561][ T3900] dmaengine-unmap-2 0KB 3KB [ 1754.832628][ T3900] QIPCRTR 1KB 6KB [ 1754.838717][ T3900] skbuff_fclone_cache 30KB 30KB [ 1754.851409][ T3900] skbuff_head_cache 356005KB 356006KB [ 1754.857508][ T3900] configfs_dir_cache 1KB 8KB [ 1754.881400][ T3900] file_lock_cache 0KB 3KB [ 1754.887472][ T3900] file_lock_ctx 8KB 11KB [ 1754.901409][ T3900] fsnotify_mark_connector 2KB 16KB [ 1754.907989][ T3900] net_namespace 43KB 43KB [ 1754.931418][ T3900] task_delay_info 55KB 281KB [ 1754.937491][ T3900] taskstats 4KB 25KB [ 1754.951400][ T3900] proc_dir_entry 1100KB 1110KB [ 1754.957502][ T3900] seq_file 2KB 15KB [ 1754.981419][ T3900] sigqueue 8KB 11KB [ 1754.987499][ T3900] shmem_inode_cache 8081KB 8254KB [ 1755.001405][ T3900] kernfs_iattrs_cache 9KB 11KB [ 1755.007649][ T3900] kernfs_node_cache 45365KB 45656KB [ 1755.031407][ T3900] mnt_cache 123KB 135KB [ 1755.037482][ T3900] filp 372KB 1083KB [ 1755.051398][ T3900] names_cache 114KB 114KB [ 1755.057464][ T3900] iint_cache 95KB 98KB [ 1755.082464][ T3900] lsm_file_cache 65KB 523KB [ 1755.088537][ T3900] key_jar 7KB 11KB [ 1755.111385][ T3900] uts_namespace 2KB 7KB [ 1755.117444][ T3900] nsproxy 1KB 7KB [ 1755.131405][ T3900] vm_area_struct 536KB 1407KB [ 1755.137472][ T3900] mm_struct 72KB 236KB [ 1755.152181][ T3900] fs_cache 10KB 116KB [ 1755.158249][ T3900] files_cache 39KB 131KB [ 1755.181397][ T3900] signal_cache 420KB 910KB [ 1755.187469][ T3900] sighand_cache 573KB 672KB [ 1755.201393][ T3900] task_struct 1774KB 1774KB [ 1755.207459][ T3900] cred_jar 77KB 544KB [ 1755.231859][ T3900] anon_vma_chain 121KB 586KB [ 1755.237933][ T3900] anon_vma 133KB 292KB [ 1755.251384][ T3900] pid 76KB 303KB [ 1755.257452][ T3900] Acpi-Operand 156KB 194KB [ 1755.281439][ T3900] Acpi-ParseExt 9KB 11KB [ 1755.287521][ T3900] Acpi-Parse 41KB 47KB [ 1755.302462][ T3900] Acpi-State 52KB 63KB [ 1755.308527][ T3900] Acpi-Namespace 23KB 27KB [ 1755.331396][ T3900] numa_policy 0KB 3KB [ 1755.337465][ T3900] trace_event_file 370KB 370KB [ 1755.352227][ T3900] ftrace_event_field 512KB 515KB [ 1755.358373][ T3900] pool_workqueue 132KB 136KB [ 1755.381373][ T3900] vmap_area 700KB 791KB [ 1755.387444][ T3900] debug_objects_cache 6604KB 6604KB [ 1755.401377][ T3900] page->ptl 134KB 618KB [ 1755.407495][ T3900] kmalloc-4M 4096KB 4096KB [ 1755.431395][ T3900] kmalloc-512k 4096KB 4096KB [ 1755.437464][ T3900] kmalloc-256k 4096KB 4096KB [ 1755.451380][ T3900] kmalloc-128k 5632KB 5632KB [ 1755.457444][ T3900] kmalloc-64k 6912KB 7040KB [ 1755.471466][ C0] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 1755.479960][ T3900] kmalloc-32k 3584KB 3584KB [ 1755.486969][ T3900] kmalloc-16k 1440KB 1536KB [ 1755.493064][ T3900] kmalloc-8k 66848KB 66896KB [ 1755.499122][ T3900] kmalloc-4k 1525688KB 1525688KB [ 1755.522548][ T3900] kmalloc-2k 1857140KB 1857140KB [ 1755.528621][ T3900] kmalloc-1k 944440KB 944440KB [ 1755.551924][ T3900] kmalloc-512 503155KB 503156KB [ 1755.557987][ T3900] kmalloc-256 10260KB 10292KB [ 1755.571372][ T3900] kmalloc-128 1724KB 1800KB [ 1755.577437][ T3900] kmalloc-96 2151KB 2240KB [ 1755.601369][ T3900] kmalloc-64 5151KB 5468KB [ 1755.607443][ T3900] kmalloc-32 2899KB 2980KB [ 1755.621366][ T3900] kmalloc-192 2331KB 2668KB [ 1755.627435][ T3900] kmem_cache 121KB 128KB [ 1755.651378][ T3900] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/,task=syz-executor.5,pid=18859,uid=0 [ 1755.681400][ T158] kworker/u4:3: page allocation failure: order:0, mode:0x40a20(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 [ 1755.694911][ T158] CPU: 0 PID: 158 Comm: kworker/u4:3 Not tainted 5.8.0-syzkaller #0 [ 1755.702856][ T158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1755.712957][ T158] Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet [ 1755.720730][ T158] Call Trace: [ 1755.723995][ T158] dump_stack+0x18f/0x20d [ 1755.728306][ T158] warn_alloc.cold+0x87/0x17a [ 1755.732994][ T158] ? zone_watermark_ok_safe+0x260/0x260 [ 1755.738518][ T158] ? zone_watermark_ok_safe+0x260/0x260 [ 1755.744042][ T158] ? __zone_watermark_ok+0x3f0/0x3f0 [ 1755.749304][ T158] ? wake_all_kswapds+0x143/0x2c0 [ 1755.754308][ T158] __alloc_pages_slowpath.constprop.0+0x225a/0x2860 [ 1755.761768][ T158] ? warn_alloc+0x120/0x120 [ 1755.766247][ T158] ? warn_alloc+0x120/0x120 [ 1755.770764][ T158] ? __zone_watermark_ok+0x3f0/0x3f0 [ 1755.776056][ T158] ? __zone_watermark_ok+0x3f0/0x3f0 [ 1755.781325][ T158] ? __zone_watermark_ok+0x3f0/0x3f0 [ 1755.786604][ T158] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1755.792598][ T158] ? lock_is_held_type+0xbb/0xf0 [ 1755.797516][ T158] __alloc_pages_nodemask+0x62b/0x810 [ 1755.802867][ T158] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 1755.808400][ T158] ? __alloc_pages_nodemask+0x661/0x810 [ 1755.814012][ T158] ? __alloc_pages_slowpath.constprop.0+0x2860/0x2860 [ 1755.820754][ T158] ? lock_downgrade+0x830/0x830 [ 1755.825582][ T158] cache_grow_begin+0x71/0x430 [ 1755.830335][ T158] fallback_alloc+0x205/0x2d0 [ 1755.834996][ T158] kmem_cache_alloc+0x236/0x3a0 [ 1755.839821][ T158] ? __local_bh_enable_ip+0xd1/0x190 [ 1755.845086][ T158] __build_skb+0x21/0x60 [ 1755.849307][ T158] __netdev_alloc_skb+0x242/0x420 [ 1755.854496][ T158] batadv_iv_ogm_aggregate_new+0x106/0x4d0 [ 1755.860279][ T158] batadv_iv_ogm_schedule_buff+0x9c0/0x1410 [ 1755.866153][ T158] ? batadv_iv_ogm_orig_dump+0xd30/0xd30 [ 1755.871759][ T158] ? kfree_skb+0x7d/0x100 [ 1755.876117][ T158] ? batadv_send_skb_packet+0x4df/0x5f0 [ 1755.881640][ T158] batadv_iv_send_outstanding_bat_ogm_packet+0x5c8/0x800 [ 1755.888639][ T158] ? _raw_write_unlock_irq+0x71/0x80 [ 1755.893916][ T158] process_one_work+0x94c/0x1670 [ 1755.898831][ T158] ? lock_release+0x8e0/0x8e0 [ 1755.903482][ T158] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 1755.908830][ T158] ? rwlock_bug.part.0+0x90/0x90 [ 1755.913745][ T158] worker_thread+0x64c/0x1120 [ 1755.918423][ T158] ? __kthread_parkme+0x13f/0x1e0 [ 1755.923432][ T158] ? process_one_work+0x1670/0x1670 [ 1755.928616][ T158] kthread+0x3b5/0x4a0 [ 1755.932662][ T158] ? __kthread_bind_mask+0xc0/0xc0 [ 1755.937743][ T158] ? __kthread_bind_mask+0xc0/0xc0 [ 1755.942835][ T158] ret_from_fork+0x1f/0x30 [ 1755.947229][ T158] Mem-Info: [ 1755.950332][ T158] active_anon:116999 inactive_anon:4159 isolated_anon:0 [ 1755.950332][ T158] active_file:1 inactive_file:1 isolated_file:0 [ 1755.950332][ T158] unevictable:0 dirty:0 writeback:0 [ 1755.950332][ T158] slab_reclaimable:19030 slab_unreclaimable:1354208 [ 1755.950332][ T158] mapped:53704 shmem:4395 pagetables:1094 bounce:0 [ 1755.950332][ T158] free:10926 free_pcp:453 free_cma:0 [ 1755.986685][ T158] Node 0 active_anon:467764kB inactive_anon:16636kB active_file:0kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:214816kB dirty:0kB writeback:0kB shmem:17580kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 385024kB writeback_tmp:0kB kernel_stack:8192kB all_unreclaimable? yes [ 1756.015651][ T158] Node 1 active_anon:232kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:32kB all_unreclaimable? yes [ 1756.042648][ T158] Node 0 DMA free:10136kB min:220kB low:272kB high:324kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 1756.070054][ T158] lowmem_reserve[]: 0 2515 2515 2515 2515 [ 1756.075764][ T158] Node 0 DMA32 free:13412kB min:62540kB low:71516kB high:80492kB reserved_highatomic:0KB active_anon:467764kB inactive_anon:16636kB active_file:0kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2578224kB mlocked:0kB pagetables:4376kB bounce:0kB free_pcp:1360kB local_pcp:1116kB free_cma:0kB [ 1756.105772][ T158] lowmem_reserve[]: 0 0 0 0 0 [ 1756.110428][ T158] Node 0 Normal free:0kB min:0kB low:0kB high:0kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:0kB mlocked:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 1756.136963][ T158] lowmem_reserve[]: 0 0 0 0 0 [ 1756.141619][ T158] Node 1 Normal free:20156kB min:53972kB low:67464kB high:80956kB reserved_highatomic:0KB active_anon:232kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870200kB mlocked:0kB pagetables:0kB bounce:0kB free_pcp:452kB local_pcp:248kB free_cma:0kB [ 1756.170673][ T158] lowmem_reserve[]: 0 0 0 0 0 [ 1756.175331][ T158] Node 0 DMA: 0*4kB 1*8kB (U) 1*16kB (U) 0*32kB 0*64kB 1*128kB (U) 1*256kB (U) 1*512kB (U) 1*1024kB (U) 2*2048kB (UM) 1*4096kB (M) = 10136kB [ 1756.189654][ T158] Node 0 DMA32: 1231*4kB (ME) 489*8kB (ME) 164*16kB (ME) 61*32kB (UME) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13412kB [ 1756.203796][ T158] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 1756.215154][ T158] Node 1 Normal: 5*4kB (ME) 5*8kB (UME) 4*16kB (UME) 4*32kB (UME) 3*64kB (ME) 2*128kB (ME) 0*256kB 2*512kB (UE) 2*1024kB (UM) 2*2048kB (ME) 3*4096kB (M) = 20156kB [ 1756.231396][ T158] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 1756.240905][ T158] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 1756.250153][ T158] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 1756.259667][ T158] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 1756.268921][ T158] 4397 total pagecache pages [ 1756.273485][ T158] 0 pages in swap cache [ 1756.277613][ T158] Swap cache stats: add 0, delete 0, find 0/0 [ 1756.283645][ T158] Free swap = 0kB [ 1756.287334][ T158] Total swap = 0kB [ 1756.291025][ T158] 1965979 pages RAM [ 1756.294802][ T158] 0 pages HighMem/MovableOnly [ 1756.299447][ T158] 349896 pages reserved [ 1756.303570][ T158] 0 pages cma reserved [ 1756.311499][ C1] ------------[ cut here ]------------ [ 1756.317272][ C1] HSR: Could not send supervision frame