veth1_vlan: entered promiscuous mode veth1_macvtap: left promiscuous mode veth0_macvtap: left promiscuous mode veth0_macvtap: entered promiscuous mode veth1_macvtap: entered promiscuous mode ------------[ cut here ]------------ !cfg80211_chandef_valid(chandef) WARNING: net/wireless/chan.c:904 at cfg80211_chandef_dfs_required+0xe0c/0xed0 net/wireless/chan.c:904, CPU#0: syz.1.1747/12866 Modules linked in: CPU: 0 UID: 0 PID: 12866 Comm: syz.1.1747 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:cfg80211_chandef_dfs_required+0xe0c/0xed0 net/wireless/chan.c:904 Code: de e8 88 75 c1 f6 48 83 fb 3f 0f 87 aa 00 00 00 e8 39 71 c1 f6 b8 01 00 00 00 89 d9 48 d3 e0 e9 3b f4 ff ff e8 25 71 c1 f6 90 <0f> 0b 90 b8 ea ff ff ff e9 28 f4 ff ff e8 92 55 a5 00 89 d1 80 e1 RSP: 0000:ffffc9000dc7e360 EFLAGS: 00010246 RAX: ffffffff8b044e4b RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000eea4000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc9000dc7e4f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000007 R13: dffffc0000000000 R14: ffffc9000dc7e680 R15: ffff88806a190000 FS: 00007f3408fd56c0(0000) GS:ffff888125287000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3a8914 CR3: 000000007b514000 CR4: 00000000003526f0 Call Trace: __cfg80211_join_mesh+0xd6f/0x1410 net/wireless/mesh.c:202 cfg80211_netdev_notifier_call+0x679/0x13b0 net/wireless/core.c:1798 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] __dev_notify_flags+0x1a9/0x310 net/core/dev.c:9794 netif_change_flags+0xe8/0x1a0 net/core/dev.c:9823 do_setlink+0xfa5/0x45a0 net/core/rtnetlink.c:3181 rtnl_group_changelink net/core/rtnetlink.c:3814 [inline] __rtnl_newlink net/core/rtnetlink.c:3982 [inline] rtnl_newlink+0x14ca/0x1bb0 net/core/rtnetlink.c:4110 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:6996 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2551 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1895 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] ____sys_sendmsg+0x972/0x9f0 net/socket.c:2698 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2752 __sys_sendmsg net/socket.c:2784 [inline] __do_sys_sendmsg net/socket.c:2789 [inline] __se_sys_sendmsg net/socket.c:2787 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f340ad9cdd9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3408fd5028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f340b016090 RCX: 00007f340ad9cdd9 RDX: 0000000004000000 RSI: 0000200000000200 RDI: 0000000000000007 RBP: 00007f340ae32d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f340b016128 R14: 00007f340b016090 R15: 00007fff4c17c6d8