[ 2.163978] test-bond1: (slave test-bond0): Enslaving as an active interface with an up link [ 2.176571] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 2.176699] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 2.198969] test-bond0: (slave test-bond2): Enslaving as an active interface with an up link [ 2.229774] test-bond1: (slave test-bond0): Releasing backup interface [ 2.234429] test-bond0 (unregistering): (slave test-bond2): Releasing backup interface [ 2.248385] test-bond0 (unregistering): Released all slaves [ 2.255396] ------------[ cut here ]------------ [ 2.255495] refcount_t: underflow; use-after-free. [ 2.255564] WARNING: CPU: 3 PID: 260 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 2.255646] Modules linked in: [ 2.255683] CPU: 3 UID: 0 PID: 260 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 2.255771] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.255836] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 2.255884] Code: 8d e8 88 98 ba ff 90 0f 0b 90 90 c3 80 3d 69 b4 eb 00 00 75 89 c6 05 60 b4 eb 00 01 90 48 c7 c7 98 6e 34 8d e8 65 98 ba ff 90 <0f> 0b 90 90 c3 80 3d 44 b4 eb 00 00 0f 85 62 ff ff ff c6 05 37 b4 [ 2.256046] RSP: 0018:ffffc2d700667730 EFLAGS: 00010282 [ 2.256090] RAX: 0000000000000000 RBX: ffffc2d700667740 RCX: 00000000ffffdfff [ 2.256158] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 2.256224] RBP: ffffc2d700667258 R08: ffffffff8d756a28 R09: 00000000ffffdfff [ 2.256300] R10: ffffffff8d676a40 R11: ffffffff8d726a40 R12: dead000000000122 [ 2.256387] R13: 00000000fffb7467 R14: 0000000000000001 R15: ffff9f78c1ff4000 [ 2.256462] FS: 00007f9f71736800(0000) GS:ffff9f7970f37000(0000) knlGS:0000000000000000 [ 2.256533] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.256587] CR2: 00007f1d3e9775f0 CR3: 0000000001e77006 CR4: 0000000000772ef0 [ 2.256656] PKRU: 55555554 [ 2.256679] Call Trace: [ 2.256707] [ 2.256731] netdev_run_todo+0x21a/0x550 [ 2.256780] rtnl_dellink+0x15b/0x350 [ 2.256827] ? virtio_fs_enqueue_req+0x352/0x570 [ 2.256878] ? netdev_run_todo+0x63/0x550 [ 2.256914] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 2.256964] rtnetlink_rcv_msg+0x358/0x400 [ 2.257003] ? get_page_from_freelist+0x15b4/0x1770 [ 2.257060] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.257110] netlink_rcv_skb+0x57/0x100 [ 2.257156] netlink_unicast+0x252/0x380 [ 2.257200] ? __alloc_skb+0xdb/0x190 [ 2.257238] netlink_sendmsg+0x1be/0x3e0 [ 2.257276] ____sys_sendmsg+0x132/0x260 [ 2.257314] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.257369] ___sys_sendmsg+0x87/0xd0 [ 2.257407] ? do_wp_page+0x369/0xe90 [ 2.257448] ? ___pte_offset_map+0x1b/0xd0 [ 2.257481] ? __handle_mm_fault+0x4e6/0xe50 [ 2.257526] ? fsnotify_grab_connector+0x48/0x80 [ 2.257578] ? fsnotify_destroy_marks+0x29/0x150 [ 2.257623] __sys_sendmsg+0x71/0xd0 [ 2.257662] do_syscall_64+0xa4/0xfd0 [ 2.257699] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.257752] RIP: 0033:0x7f9f719041d7 [ 2.257790] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 2.257967] RSP: 002b:00007ffdc8726cd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.258043] RAX: ffffffffffffffda RBX: 00007ffdc8727400 RCX: 00007f9f719041d7 [ 2.258119] RDX: 0000000000000000 RSI: 00007ffdc8726d40 RDI: 0000000000000005 [ 2.258195] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 2.258271] R10: 00007f9f71800f60 R11: 0000000000000246 R12: 0000000000000002 [ 2.258351] R13: 00000000690defb8 R14: 0000000000499600 R15: 0000000000000000 [ 2.258424] [ 2.258449] ---[ end trace 0000000000000000 ]--- [ 2.258973] ip (260) used greatest stack depth: 11744 bytes left [ 2.270137] test-bond1 (unregistering): Released all slaves [ 2.301628] test-bond2 (unregistering): Released all slaves [ 2.416605] test-bond1: (slave test-bond0): Enslaving as an active interface with an up link [ 2.428848] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 2.428967] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode [ 2.429112] test-bond0: (slave test-noneth0): making interface the new active one [ 2.429204] test-bond0: (slave test-noneth0): Enslaving as an active interface with an up link [ 2.441020] test-bond0: (slave test-noneth0): Releasing backup interface [ 2.458588] test-bond0: (slave test-bond2): making interface the new active one [ 2.458737] test-bond0: (slave test-bond2): Enslaving as an active interface with an up link [ 2.494642] test-bond1: (slave test-bond0): Releasing backup interface [ 2.506466] test-bond0 (unregistering): (slave test-bond2): Releasing backup interface [ 2.516422] test-bond0 (unregistering): Released all slaves [ 2.535960] test-bond1 (unregistering): Released all slaves [ 2.567268] test-bond2 (unregistering): Released all slaves