[ 2.225803] ip (248) used greatest stack depth: 12344 bytes left [ 2.649190] br1: port 1(veth1) entered blocking state [ 2.649264] br1: port 1(veth1) entered disabled state [ 2.649320] veth1: entered allmulticast mode [ 2.649396] veth1: entered promiscuous mode [ 2.660577] br1: port 1(veth1) entered blocking state [ 2.660641] br1: port 1(veth1) entered forwarding state [ 2.671724] br1: port 2(veth2) entered blocking state [ 2.671791] br1: port 2(veth2) entered disabled state [ 2.671846] veth2: entered allmulticast mode [ 2.671928] veth2: entered promiscuous mode [ 2.682181] br1: port 2(veth2) entered blocking state [ 2.682276] br1: port 2(veth2) entered forwarding state [ 7.837979] GACT probability NOT on [ 7.839111] tc (311) used greatest stack depth: 11840 bytes left [ 19.288725] br1: port 2(veth2) entered disabled state [ 19.300417] veth2: left allmulticast mode [ 19.300485] veth2: left promiscuous mode [ 19.300540] br1: port 2(veth2) entered disabled state [ 19.313175] br1: port 1(veth1) entered disabled state [ 19.325956] veth1: left allmulticast mode [ 19.326035] veth1: left promiscuous mode [ 19.326082] br1: port 1(veth1) entered disabled state [ 19.358086] ------------[ cut here ]------------ [ 19.358217] refcount_t: underflow; use-after-free. [ 19.358288] WARNING: CPU: 3 PID: 512 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 19.358390] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth [ 19.358485] CPU: 3 UID: 0 PID: 512 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 19.358590] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.358668] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 19.358723] Code: be 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 51 be 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 [ 19.358905] RSP: 0018:ffffb6cf4099f730 EFLAGS: 00010282 [ 19.358962] RAX: 0000000000000000 RBX: ffffb6cf4099f740 RCX: 00000000ffffdfff [ 19.359042] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 19.359121] RBP: ffffb6cf4099f248 R08: ffffffffbe956a28 R09: 00000000ffffdfff [ 19.359209] R10: ffffffffbe876a40 R11: ffffffffbe926a40 R12: dead000000000122 [ 19.359288] R13: 00000000fffbb738 R14: 0000000000000001 R15: ffff989101f2f000 [ 19.359375] FS: 00007f9983a72800(0000) GS:ffff98917fd59000(0000) knlGS:0000000000000000 [ 19.359465] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.359541] CR2: 000055fe21cf5510 CR3: 0000000002f6b001 CR4: 0000000000772ef0 [ 19.359626] PKRU: 55555554 [ 19.359653] Call Trace: [ 19.359680] [ 19.359707] netdev_run_todo+0x21a/0x550 [ 19.359771] rtnl_dellink+0x15b/0x350 [ 19.359826] ? virtio_fs_enqueue_req+0x352/0x570 [ 19.359894] ? netdev_run_todo+0x63/0x550 [ 19.359939] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 19.359994] rtnetlink_rcv_msg+0x358/0x400 [ 19.360041] ? get_page_from_freelist+0x15b4/0x1770 [ 19.360110] ? rtnl_calcit.isra.0+0x110/0x110 [ 19.360169] netlink_rcv_skb+0x57/0x100 [ 19.360222] netlink_unicast+0x252/0x380 [ 19.360267] ? __alloc_skb+0xdb/0x190 [ 19.360319] netlink_sendmsg+0x1be/0x3e0 [ 19.360362] ____sys_sendmsg+0x132/0x260 [ 19.360413] ? copy_msghdr_from_user+0x6c/0xa0 [ 19.360465] ___sys_sendmsg+0x87/0xd0 [ 19.360507] ? do_wp_page+0x369/0xe90 [ 19.360556] ? ___pte_offset_map+0x1b/0xd0 [ 19.360600] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 19.360663] ? fsnotify_grab_connector+0x48/0x80 [ 19.360730] ? fsnotify_destroy_marks+0x29/0x150 [ 19.360787] __sys_sendmsg+0x71/0xd0 [ 19.360835] do_syscall_64+0xa4/0xfd0 [ 19.360892] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 19.360954] RIP: 0033:0x7f9983c401d7 [ 19.361002] 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 [ 19.361203] RSP: 002b:00007ffed4bf8b68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 19.361296] RAX: ffffffffffffffda RBX: 00007ffed4bf9290 RCX: 00007f9983c401d7 [ 19.361382] RDX: 0000000000000000 RSI: 00007ffed4bf8bd0 RDI: 0000000000000005 [ 19.361464] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 19.361547] R10: 00007f9983b3cf60 R11: 0000000000000246 R12: 0000000000000002 [ 19.361626] R13: 00000000690ded4e R14: 0000000000499600 R15: 0000000000000000 [ 19.361707] [ 19.361733] ---[ end trace 0000000000000000 ]--- [ 19.362371] ip (512) used greatest stack depth: 11744 bytes left