bond0: (slave wlan1): Releasing backup interface ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7766 at kernel/kcov.c:872 kcov_remote_start+0x55a/0x7f0 kernel/kcov.c:872 Modules linked in: CPU: 0 UID: 0 PID: 7766 Comm: syz.2.462 Not tainted 6.15.0-rc7-syzkaller-01675-ge45b7196df60 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:kcov_remote_start+0x55a/0x7f0 kernel/kcov.c:872 Code: ff 4c 89 ff be 03 00 00 00 e8 62 ee f8 02 e9 eb fa ff ff e8 68 b7 98 09 f7 c3 00 02 00 00 0f 84 da fa ff ff e9 5a fc ff ff 90 <0f> 0b 90 e8 4e d1 98 09 89 c0 48 c7 c7 68 63 77 92 48 03 3c c5 20 RSP: 0018:ffffc9000b336210 EFLAGS: 00010002 RAX: 0000000080000200 RBX: 0000000000000246 RCX: 0000000000000002 RDX: 0000000000030000 RSI: ffffffff8d94169f RDI: ffffffff8bc1f600 RBP: ffffc9000b336470 R08: ffffc9000b335fa0 R09: 0000000000000020 R10: 0000000000000000 R11: ffffffff819eb0c0 R12: ffff8880b8828368 R13: ffffffff81bffb77 R14: ffff88802aabbc00 R15: 0000000000000000 FS: 00007f41067a26c0(0000) GS:ffff8881260b2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3070fff8 CR3: 0000000023ecc000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcov_remote_start_common include/linux/kcov.h:50 [inline] ieee80211_rx_list+0x53a/0x2d80 net/mac80211/rx.c:5398 ieee80211_rx_napi+0x1a8/0x3d0 net/mac80211/rx.c:5439 ieee80211_rx include/net/mac80211.h:5185 [inline] ieee80211_handle_queued_frames+0xe8/0x1f0 net/mac80211/main.c:441 ieee80211_stop_device+0x3e/0xf0 net/mac80211/util.c:1563 ieee80211_do_stop+0x17dd/0x1fa0 net/mac80211/iface.c:721 ieee80211_stop+0x1b1/0x220 net/mac80211/iface.c:814 __dev_close_many+0x364/0x6f0 net/core/dev.c:1756 dev_close_many+0x225/0x410 net/core/dev.c:1781 netif_close+0x158/0x210 net/core/dev.c:1798 dev_close+0x10a/0x220 net/core/dev_api.c:219 __bond_release_one+0xbb5/0x10e0 drivers/net/bonding/bond_main.c:2645 do_set_master+0x312/0x6d0 net/core/rtnetlink.c:2930 do_setlink+0xd47/0x40d0 net/core/rtnetlink.c:3159 rtnl_group_changelink net/core/rtnetlink.c:3784 [inline] __rtnl_newlink net/core/rtnetlink.c:3938 [inline] rtnl_newlink+0x149f/0x1c70 net/core/rtnetlink.c:4066 rtnetlink_rcv_msg+0x7cc/0xb70 net/core/rtnetlink.c:6955 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x75b/0x8d0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:727 ____sys_sendmsg+0x505/0x830 net/socket.c:2566 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620 __sys_sendmsg net/socket.c:2652 [inline] __do_sys_sendmsg net/socket.c:2657 [inline] __se_sys_sendmsg net/socket.c:2655 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f410598e969 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f41067a2038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f4105bb6320 RCX: 00007f410598e969 RDX: 0000000000000004 RSI: 0000200000000140 RDI: 0000000000000003 RBP: 00007f4105a10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f4105bb6320 R15: 00007fff2db89918