[ 2.262293] ip (248) used greatest stack depth: 12344 bytes left [ 2.593185] 8021q: 802.1Q VLAN Support v1.8 [ 2.968886] br0: port 1(veth1) entered blocking state [ 2.968988] br0: port 1(veth1) entered disabled state [ 2.969069] veth1: entered allmulticast mode [ 2.969206] veth1: entered promiscuous mode [ 2.980935] br0: port 1(veth1) entered blocking state [ 2.981008] br0: port 1(veth1) entered forwarding state [ 3.003772] br0: port 2(veth2) entered blocking state [ 3.003847] br0: port 2(veth2) entered disabled state [ 3.003912] veth2: entered allmulticast mode [ 3.004028] veth2: entered promiscuous mode [ 3.014876] br0: port 2(veth2) entered blocking state [ 3.014942] br0: port 2(veth2) entered forwarding state [ 35.602248] br0: port 2(veth2) entered disabled state [ 35.615010] veth2: left allmulticast mode [ 35.615075] veth2: left promiscuous mode [ 35.615134] br0: port 2(veth2) entered disabled state [ 35.627964] br0: port 1(veth1) entered disabled state [ 35.641638] veth1: left allmulticast mode [ 35.641723] veth1: left promiscuous mode [ 35.641780] br0: port 1(veth1) entered disabled state [ 35.690335] ------------[ cut here ]------------ [ 35.690462] refcount_t: underflow; use-after-free. [ 35.690542] WARNING: CPU: 0 PID: 2110 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 35.690680] Modules linked in: bridge stp llc 8021q vrf veth [ 35.690769] CPU: 0 UID: 0 PID: 2110 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 35.690836] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 35.690909] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 35.690951] Code: 88 e8 18 df ba ff 90 0f 0b 90 90 c3 80 3d f9 da eb 00 00 75 89 c6 05 f0 da eb 00 01 90 48 c7 c7 28 e0 b1 88 e8 f5 de ba ff 90 <0f> 0b 90 90 c3 80 3d d4 da eb 00 00 0f 85 62 ff ff ff c6 05 c7 da [ 35.691106] RSP: 0018:ffffbb4c821e7730 EFLAGS: 00010282 [ 35.691174] RAX: 0000000000000000 RBX: ffffbb4c821e7740 RCX: 00000000ffffdfff [ 35.691245] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 35.691305] RBP: ffffbb4c821e7248 R08: ffffffff88f56a28 R09: 00000000ffffdfff [ 35.691395] R10: ffffffff88e76a40 R11: ffffffff88f26a40 R12: dead000000000122 [ 35.691474] R13: 00000000fffbf708 R14: 0000000000000001 R15: ffff93c542bec000 [ 35.691559] FS: 00007f8029d6c800(0000) GS:ffff93c5f55d9000(0000) knlGS:0000000000000000 [ 35.691646] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.691722] CR2: 00000000004e68c8 CR3: 00000000079bc001 CR4: 0000000000772ef0 [ 35.691806] PKRU: 55555554 [ 35.691833] Call Trace: [ 35.691865] [ 35.691901] netdev_run_todo+0x21a/0x550 [ 35.691968] rtnl_dellink+0x15b/0x350 [ 35.692025] ? virtio_fs_enqueue_req+0x352/0x570 [ 35.692092] ? netdev_run_todo+0x63/0x550 [ 35.692135] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 35.692192] rtnetlink_rcv_msg+0x358/0x400 [ 35.692243] ? get_page_from_freelist+0x15b4/0x1770 [ 35.692310] ? rtnl_calcit.isra.0+0x110/0x110 [ 35.692374] netlink_rcv_skb+0x57/0x100 [ 35.692426] netlink_unicast+0x252/0x380 [ 35.692470] ? __alloc_skb+0xdb/0x190 [ 35.692523] netlink_sendmsg+0x1be/0x3e0 [ 35.692575] ____sys_sendmsg+0x132/0x260 [ 35.692634] ? copy_msghdr_from_user+0x6c/0xa0 [ 35.692696] ___sys_sendmsg+0x87/0xd0 [ 35.692746] ? do_wp_page+0x369/0xe90 [ 35.692797] ? ___pte_offset_map+0x1b/0xd0 [ 35.692839] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 35.692905] ? fsnotify_grab_connector+0x48/0x80 [ 35.692969] ? fsnotify_destroy_marks+0x29/0x150 [ 35.693033] __sys_sendmsg+0x71/0xd0 [ 35.693086] do_syscall_64+0xa4/0xfd0 [ 35.693137] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 35.693185] RIP: 0033:0x7f8029f3a1d7 [ 35.693227] 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 [ 35.693432] RSP: 002b:00007ffccfdf6f98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.693526] RAX: ffffffffffffffda RBX: 00007ffccfdf76c0 RCX: 00007f8029f3a1d7 [ 35.693610] RDX: 0000000000000000 RSI: 00007ffccfdf7000 RDI: 0000000000000005 [ 35.693694] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 35.693777] R10: 00007f8029e36f60 R11: 0000000000000246 R12: 0000000000000002 [ 35.693858] R13: 00000000690de4f2 R14: 0000000000499600 R15: 0000000000000000 [ 35.693943] [ 35.693970] ---[ end trace 0000000000000000 ]--- [ 35.694723] ip (2110) used greatest stack depth: 11744 bytes left [ 35.768537] br0: port 1(veth1) entered blocking state [ 35.768608] br0: port 1(veth1) entered disabled state [ 35.768672] veth1: entered allmulticast mode [ 35.768752] veth1: entered promiscuous mode [ 35.781725] br0: port 1(veth1) entered blocking state [ 35.781838] br0: port 1(veth1) entered forwarding state [ 35.827351] br0: port 2(veth2) entered blocking state [ 35.827414] br0: port 2(veth2) entered disabled state [ 35.827491] veth2: entered allmulticast mode [ 35.827630] veth2: entered promiscuous mode [ 35.838684] br0: port 2(veth2) entered blocking state [ 35.838760] br0: port 2(veth2) entered forwarding state [ 68.394801] br0: port 2(veth2) entered disabled state [ 68.406465] veth2: left allmulticast mode [ 68.406538] veth2: left promiscuous mode [ 68.406589] br0: port 2(veth2) entered disabled state [ 68.417339] br0: port 1(veth1) entered disabled state [ 68.428978] veth1: left allmulticast mode [ 68.429043] veth1: left promiscuous mode [ 68.429097] br0: port 1(veth1) entered disabled state [ 68.540015] br0: port 1(veth1) entered blocking state [ 68.540098] br0: port 1(veth1) entered disabled state [ 68.540167] veth1: entered allmulticast mode [ 68.540282] veth1: entered promiscuous mode [ 68.552179] br0: port 1(veth1) entered blocking state [ 68.552350] br0: port 1(veth1) entered forwarding state [ 68.598186] br0: port 2(veth2) entered blocking state [ 68.598248] br0: port 2(veth2) entered disabled state [ 68.598309] veth2: entered allmulticast mode [ 68.598404] veth2: entered promiscuous mode [ 68.610726] br0: port 2(veth2) entered blocking state [ 68.610847] br0: port 2(veth2) entered forwarding state [ 131.695478] br0: port 2(veth2) entered disabled state [ 131.707974] veth2: left allmulticast mode [ 131.708058] veth2: left promiscuous mode [ 131.708107] br0: port 2(veth2) entered disabled state [ 131.721118] br0: port 1(veth1) entered disabled state [ 131.735866] veth1: left allmulticast mode [ 131.735946] veth1: left promiscuous mode [ 131.735998] br0: port 1(veth1) entered disabled state