[ 2.095631] test-bond1: (slave test-bond0): Enslaving as an active interface with an up link [ 2.108385] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 2.108539] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 2.134785] test-bond0: (slave test-bond2): Enslaving as an active interface with an up link [ 2.170769] test-bond1: (slave test-bond0): Releasing backup interface [ 2.175366] test-bond0 (unregistering): (slave test-bond2): Releasing backup interface [ 2.180305] test-bond0 (unregistering): Released all slaves [ 2.188301] ------------[ cut here ]------------ [ 2.188447] refcount_t: underflow; use-after-free. [ 2.188551] WARNING: CPU: 2 PID: 261 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 2.188696] Modules linked in: [ 2.188758] CPU: 2 UID: 0 PID: 261 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 2.188854] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.188971] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 2.189057] Code: 9e 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 f4 9e 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 [ 2.189264] RSP: 0018:ffffb217c0637730 EFLAGS: 00010282 [ 2.189345] RAX: 0000000000000000 RBX: ffffb217c0637740 RCX: 00000000ffffdfff [ 2.189449] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 2.189549] RBP: ffffb217c0637258 R08: ffffffff9f356a28 R09: 00000000ffffdfff [ 2.189655] R10: ffffffff9f276a40 R11: ffffffff9f326a40 R12: dead000000000122 [ 2.189759] R13: 00000000fffb7411 R14: 0000000000000001 R15: ffff953801be9000 [ 2.189865] FS: 00007fcfb93e7800(0000) GS:ffff95389f2b7000(0000) knlGS:0000000000000000 [ 2.189968] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.190049] CR2: 00007ffb082385f0 CR3: 0000000006f5f004 CR4: 0000000000772ef0 [ 2.190150] PKRU: 55555554 [ 2.190208] Call Trace: [ 2.190260] [ 2.190312] netdev_run_todo+0x21a/0x550 [ 2.190387] rtnl_dellink+0x15b/0x350 [ 2.190457] ? virtio_fs_enqueue_req+0x352/0x570 [ 2.190536] ? netdev_run_todo+0x63/0x550 [ 2.190602] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 2.190679] rtnetlink_rcv_msg+0x358/0x400 [ 2.190744] ? get_page_from_freelist+0x15b4/0x1770 [ 2.190824] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.190902] netlink_rcv_skb+0x57/0x100 [ 2.190971] netlink_unicast+0x252/0x380 [ 2.191036] ? __alloc_skb+0xdb/0x190 [ 2.191102] netlink_sendmsg+0x1be/0x3e0 [ 2.191175] ____sys_sendmsg+0x132/0x260 [ 2.191243] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.191321] ___sys_sendmsg+0x87/0xd0 [ 2.191387] ? do_wp_page+0x369/0xe90 [ 2.191457] ? ___pte_offset_map+0x1b/0xd0 [ 2.191525] ? __handle_mm_fault+0x4e6/0xe50 [ 2.191580] ? fsnotify_grab_connector+0x48/0x80 [ 2.191655] ? fsnotify_destroy_marks+0x29/0x150 [ 2.191732] __sys_sendmsg+0x71/0xd0 [ 2.191798] do_syscall_64+0xa4/0xfd0 [ 2.191866] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.191945] RIP: 0033:0x7fcfb95b51d7 [ 2.192012] 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 [ 2.192209] RSP: 002b:00007ffe75c755b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.192308] RAX: ffffffffffffffda RBX: 00007ffe75c75ce0 RCX: 00007fcfb95b51d7 [ 2.192407] RDX: 0000000000000000 RSI: 00007ffe75c75620 RDI: 0000000000000005 [ 2.192504] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 2.192602] R10: 00007fcfb94b1f60 R11: 0000000000000246 R12: 0000000000000002 [ 2.192700] R13: 00000000690de803 R14: 0000000000499600 R15: 0000000000000000 [ 2.192801] [ 2.192832] ---[ end trace 0000000000000000 ]--- [ 2.193620] ip (261) used greatest stack depth: 11744 bytes left [ 2.204707] test-bond1 (unregistering): Released all slaves [ 2.223647] test-bond2 (unregistering): Released all slaves [ 2.342504] test-bond1: (slave test-bond0): Enslaving as an active interface with an up link [ 2.354819] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 2.354979] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode [ 2.355150] test-bond0: (slave test-noneth0): making interface the new active one [ 2.355281] test-bond0: (slave test-noneth0): Enslaving as an active interface with an up link [ 2.369905] test-bond0: (slave test-noneth0): Releasing backup interface [ 2.391848] test-bond0: (slave test-bond2): making interface the new active one [ 2.391985] test-bond0: (slave test-bond2): Enslaving as an active interface with an up link [ 2.424794] test-bond1: (slave test-bond0): Releasing backup interface [ 2.430289] test-bond0 (unregistering): (slave test-bond2): Releasing backup interface [ 2.439258] test-bond0 (unregistering): Released all slaves [ 2.462750] test-bond1 (unregistering): Released all slaves [ 2.479627] test-bond2 (unregistering): Released all slaves