[ 2.192518] ip (246) used greatest stack depth: 12328 bytes left [ 2.678881] br1: port 1(veth1) entered blocking state [ 2.679037] br1: port 1(veth1) entered disabled state [ 2.679118] veth1: entered allmulticast mode [ 2.679236] veth1: entered promiscuous mode [ 2.690419] br1: port 1(veth1) entered blocking state [ 2.690518] br1: port 1(veth1) entered forwarding state [ 9.854351] veth1: left allmulticast mode [ 9.854420] veth1: left promiscuous mode [ 9.854472] br1: port 1(veth1) entered disabled state [ 11.875143] br1: port 1(veth1) entered blocking state [ 11.875215] br1: port 1(veth1) entered disabled state [ 11.875277] veth1: entered allmulticast mode [ 11.875370] veth1: entered promiscuous mode [ 11.875426] br1: port 1(veth1) entered blocking state [ 11.875496] br1: port 1(veth1) entered forwarding state [ 30.012332] veth1: left allmulticast mode [ 30.012406] veth1: left promiscuous mode [ 30.012562] br1: port 1(veth1) entered disabled state [ 32.048081] br1: port 1(veth1) entered blocking state [ 32.048174] br1: port 1(veth1) entered disabled state [ 32.048271] veth1: entered allmulticast mode [ 32.048383] veth1: entered promiscuous mode [ 32.048466] br1: port 1(veth1) entered blocking state [ 32.048525] br1: port 1(veth1) entered forwarding state [ 34.126053] br1: port 1(veth1) entered disabled state [ 34.137070] veth1: left allmulticast mode [ 34.137128] veth1: left promiscuous mode [ 34.137175] br1: port 1(veth1) entered disabled state [ 34.168481] ------------[ cut here ]------------ [ 34.168665] refcount_t: underflow; use-after-free. [ 34.168753] WARNING: CPU: 2 PID: 503 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 34.168864] Modules linked in: bridge stp llc vrf veth [ 34.168949] CPU: 2 UID: 0 PID: 503 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 34.169077] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.169175] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 34.169261] Code: b4 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 b4 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 [ 34.169474] RSP: 0018:ffffb490c0a87730 EFLAGS: 00010282 [ 34.169553] RAX: 0000000000000000 RBX: ffffb490c0a87740 RCX: 00000000ffffdfff [ 34.169662] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 34.169769] RBP: ffffb490c0a87248 R08: ffffffffb4956a28 R09: 00000000ffffdfff [ 34.169876] R10: ffffffffb4876a40 R11: ffffffffb4926a40 R12: dead000000000122 [ 34.169980] R13: 00000000fffbf11b R14: 0000000000000001 R15: ffff945b01f29000 [ 34.170079] FS: 00007f1d7e4f7800(0000) GS:ffff945b89cd9000(0000) knlGS:0000000000000000 [ 34.170185] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.170297] CR2: 0000557b32277bd8 CR3: 0000000001faa005 CR4: 0000000000772ef0 [ 34.170405] PKRU: 55555554 [ 34.170460] Call Trace: [ 34.170513] [ 34.170547] netdev_run_todo+0x21a/0x550 [ 34.170621] rtnl_dellink+0x15b/0x350 [ 34.170697] ? virtio_fs_enqueue_req+0x352/0x570 [ 34.170780] ? netdev_run_todo+0x63/0x550 [ 34.170846] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 34.170925] rtnetlink_rcv_msg+0x358/0x400 [ 34.170989] ? get_page_from_freelist+0x15b4/0x1770 [ 34.171074] ? rtnl_calcit.isra.0+0x110/0x110 [ 34.171134] netlink_rcv_skb+0x57/0x100 [ 34.171224] netlink_unicast+0x252/0x380 [ 34.171289] ? __alloc_skb+0xdb/0x190 [ 34.171345] netlink_sendmsg+0x1be/0x3e0 [ 34.171413] ____sys_sendmsg+0x132/0x260 [ 34.171491] ? copy_msghdr_from_user+0x6c/0xa0 [ 34.171573] ___sys_sendmsg+0x87/0xd0 [ 34.171640] ? do_wp_page+0x369/0xe90 [ 34.171709] ? ___pte_offset_map+0x1b/0xd0 [ 34.171775] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 34.171856] ? fsnotify_grab_connector+0x48/0x80 [ 34.171936] ? fsnotify_destroy_marks+0x29/0x150 [ 34.172015] __sys_sendmsg+0x71/0xd0 [ 34.172082] do_syscall_64+0xa4/0xfd0 [ 34.172148] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 34.172226] RIP: 0033:0x7f1d7e6c51d7 [ 34.172294] 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 [ 34.172504] RSP: 002b:00007ffda9a966b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 34.172630] RAX: ffffffffffffffda RBX: 00007ffda9a96de0 RCX: 00007f1d7e6c51d7 [ 34.172737] RDX: 0000000000000000 RSI: 00007ffda9a96720 RDI: 0000000000000005 [ 34.172841] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 34.172941] R10: 00007f1d7e5c1f60 R11: 0000000000000246 R12: 0000000000000002 [ 34.173048] R13: 00000000690de6b6 R14: 0000000000499600 R15: 0000000000000000 [ 34.173160] [ 34.173218] ---[ end trace 0000000000000000 ]--- [ 34.173775] ip (503) used greatest stack depth: 11744 bytes left