[ 2.153177] br: port 1(d1) entered blocking state [ 2.153266] br: port 1(d1) entered disabled state [ 2.153352] d1: entered allmulticast mode [ 2.153451] d1: entered promiscuous mode [ 2.153517] br: port 1(d1) entered blocking state [ 2.153574] br: port 1(d1) entered forwarding state [ 2.245280] br: port 2(d2) entered blocking state [ 2.245347] br: port 2(d2) entered disabled state [ 2.245407] d2: entered allmulticast mode [ 2.245493] d2: entered promiscuous mode [ 2.245547] br: port 2(d2) entered blocking state [ 2.245586] br: port 2(d2) entered forwarding state [ 2.335765] br: port 3(d3) entered blocking state [ 2.335833] br: port 3(d3) entered disabled state [ 2.335898] d3: entered allmulticast mode [ 2.335986] d3: entered promiscuous mode [ 2.336035] br: port 3(d3) entered blocking state [ 2.336074] br: port 3(d3) entered forwarding state [ 2.630353] br: port 1(d1) entered disabled state [ 2.734563] br: port 1(d1) entered blocking state [ 2.734674] br: port 1(d1) entered forwarding state [ 2.761500] br: port 2(d2) entered disabled state [ 2.866411] br: port 2(d2) entered blocking state [ 2.866536] br: port 2(d2) entered forwarding state [ 2.894373] br: port 1(d1) entered disabled state [ 2.919705] br: port 2(d2) entered disabled state [ 3.021597] br: port 2(d2) entered blocking state [ 3.021726] br: port 2(d2) entered forwarding state [ 3.033987] br: port 1(d1) entered blocking state [ 3.034060] br: port 1(d1) entered forwarding state [ 3.060659] br: port 1(d1) entered disabled state [ 3.084878] br: port 2(d2) entered disabled state [ 3.109281] br: port 3(d3) entered disabled state [ 3.210292] br: port 3(d3) entered blocking state [ 3.210394] br: port 3(d3) entered forwarding state [ 3.222717] br: port 2(d2) entered blocking state [ 3.222777] br: port 2(d2) entered forwarding state [ 3.234689] br: port 1(d1) entered blocking state [ 3.234748] br: port 1(d1) entered forwarding state [ 3.262705] ------------[ cut here ]------------ [ 3.262785] refcount_t: underflow; use-after-free. [ 3.262845] WARNING: CPU: 3 PID: 635 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 3.262918] Modules linked in: [ 3.262960] CPU: 3 UID: 0 PID: 635 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 3.263028] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 3.263074] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 3.263117] Code: 9a e8 e8 54 ba ff 90 0f 0b 90 90 c3 80 3d 00 e6 2b 01 00 75 89 c6 05 f7 e5 2b 01 01 90 48 c7 c7 f8 48 35 9a e8 c5 54 ba ff 90 <0f> 0b 90 90 c3 80 3d db e5 2b 01 00 0f 85 62 ff ff ff c6 05 ce e5 [ 3.263254] RSP: 0018:ffff953940af7730 EFLAGS: 00010282 [ 3.263301] RAX: 0000000000000000 RBX: ffff953940af7740 RCX: 00000000ffffdfff [ 3.263363] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 3.263418] RBP: ffff953940af7238 R08: ffffffff9ab5ba28 R09: 00000000ffffdfff [ 3.263482] R10: ffffffff9aa7ba40 R11: ffffffff9ab2ba40 R12: dead000000000122 [ 3.263544] R13: 00000000fffb785f R14: 0000000000000001 R15: ffff8945830ea000 [ 3.263607] FS: 00007f930d727800(0000) GS:ffff894623b11000(0000) knlGS:0000000000000000 [ 3.263675] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.263728] CR2: 0000560f160f0148 CR3: 0000000007898003 CR4: 0000000000772ef0 [ 3.263785] PKRU: 55555554 [ 3.263809] Call Trace: [ 3.263830] [ 3.263852] netdev_run_todo+0x21a/0x550 [ 3.263895] rtnl_dellink+0x15b/0x350 [ 3.263938] ? virtio_fs_enqueue_req+0x352/0x570 [ 3.263986] ? netdev_run_todo+0x63/0x550 [ 3.264020] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 3.264064] rtnetlink_rcv_msg+0x358/0x400 [ 3.264096] ? get_page_from_freelist+0x15b4/0x1770 [ 3.264141] ? rtnl_calcit.isra.0+0x110/0x110 [ 3.264183] netlink_rcv_skb+0x57/0x100 [ 3.264223] netlink_unicast+0x252/0x380 [ 3.264257] ? __alloc_skb+0xdb/0x190 [ 3.264300] netlink_sendmsg+0x1be/0x3e0 [ 3.264329] ____sys_sendmsg+0x132/0x260 [ 3.264368] ? copy_msghdr_from_user+0x6c/0xa0 [ 3.264413] ___sys_sendmsg+0x87/0xd0 [ 3.264446] ? do_wp_page+0x369/0xe90 [ 3.264482] ? ___pte_offset_map+0x1b/0xd0 [ 3.264514] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 3.264568] ? fsnotify_grab_connector+0x48/0x80 [ 3.264616] ? fsnotify_destroy_marks+0x29/0x150 [ 3.264669] __sys_sendmsg+0x71/0xd0 [ 3.264706] do_syscall_64+0xa4/0xfd0 [ 3.264747] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 3.264791] RIP: 0033:0x7f930d8f51d7 [ 3.264825] 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 [ 3.264960] RSP: 002b:00007ffd64a33908 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3.265027] RAX: ffffffffffffffda RBX: 00007ffd64a34030 RCX: 00007f930d8f51d7 [ 3.265082] RDX: 0000000000000000 RSI: 00007ffd64a33970 RDI: 0000000000000005 [ 3.265145] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 3.265210] R10: 00007f930d7f1f60 R11: 0000000000000246 R12: 0000000000000002 [ 3.265266] R13: 00000000690dfa53 R14: 0000000000499600 R15: 0000000000000000 [ 3.265322] [ 3.265348] ---[ end trace 0000000000000000 ]--- [ 3.265934] ip (635) used greatest stack depth: 11744 bytes left [ 3.448591] br: port 1(d1) entered disabled state [ 3.546147] br: port 1(d1) entered blocking state [ 3.546217] br: port 1(d1) entered forwarding state [ 3.572982] br: port 2(d2) entered disabled state [ 3.671379] br: port 2(d2) entered blocking state [ 3.671492] br: port 2(d2) entered forwarding state [ 3.697174] br: port 1(d1) entered disabled state [ 3.721471] br: port 2(d2) entered disabled state [ 3.820566] br: port 2(d2) entered blocking state [ 3.820641] br: port 2(d2) entered forwarding state [ 3.834287] br: port 1(d1) entered blocking state [ 3.834365] br: port 1(d1) entered forwarding state [ 3.860843] br: port 1(d1) entered disabled state [ 3.884174] br: port 2(d2) entered disabled state [ 3.907998] br: port 3(d3) entered disabled state [ 4.030436] br: port 3(d3) entered blocking state [ 4.030496] br: port 3(d3) entered forwarding state [ 4.042759] br: port 2(d2) entered blocking state [ 4.042815] br: port 2(d2) entered forwarding state [ 4.054764] br: port 1(d1) entered blocking state [ 4.054820] br: port 1(d1) entered forwarding state [ 4.334729] br: port 1(d1) entered disabled state [ 4.441613] br: port 1(d1) entered blocking state [ 4.441704] br: port 1(d1) entered forwarding state [ 4.469093] br: port 2(d2) entered disabled state [ 4.571497] br: port 2(d2) entered blocking state [ 4.571566] br: port 2(d2) entered forwarding state [ 4.598292] br: port 1(d1) entered disabled state [ 4.625678] br: port 2(d2) entered disabled state [ 4.730242] br: port 2(d2) entered blocking state [ 4.730312] br: port 2(d2) entered forwarding state [ 4.744034] br: port 1(d1) entered blocking state [ 4.744089] br: port 1(d1) entered forwarding state [ 4.772024] br: port 1(d1) entered disabled state [ 4.798587] br: port 2(d2) entered disabled state [ 4.826181] br: port 3(d3) entered disabled state [ 4.936572] br: port 3(d3) entered blocking state [ 4.936656] br: port 3(d3) entered forwarding state [ 4.950680] br: port 2(d2) entered blocking state [ 4.950767] br: port 2(d2) entered forwarding state [ 4.964642] br: port 1(d1) entered blocking state [ 4.964731] br: port 1(d1) entered forwarding state [ 5.242605] br: port 1(d1) entered disabled state [ 5.353580] br: port 1(d1) entered blocking state [ 5.353660] br: port 1(d1) entered forwarding state [ 5.379953] br: port 2(d2) entered disabled state [ 5.486815] br: port 2(d2) entered blocking state [ 5.486931] br: port 2(d2) entered forwarding state [ 5.514354] br: port 1(d1) entered disabled state [ 5.540371] br: port 2(d2) entered disabled state [ 5.646990] br: port 2(d2) entered blocking state [ 5.647064] br: port 2(d2) entered forwarding state [ 5.660622] br: port 1(d1) entered blocking state [ 5.660701] br: port 1(d1) entered forwarding state [ 5.691137] br: port 1(d1) entered disabled state [ 5.718827] br: port 2(d2) entered disabled state [ 5.744782] br: port 3(d3) entered disabled state [ 5.872378] br: port 3(d3) entered blocking state [ 5.872497] br: port 3(d3) entered forwarding state [ 5.885503] br: port 2(d2) entered blocking state [ 5.885583] br: port 2(d2) entered forwarding state [ 5.898376] br: port 1(d1) entered blocking state [ 5.898453] br: port 1(d1) entered forwarding state [ 6.193557] br: port 1(d1) entered disabled state [ 6.302476] br: port 1(d1) entered blocking state [ 6.302546] br: port 1(d1) entered forwarding state [ 6.329807] br: port 2(d2) entered disabled state [ 6.435447] br: port 2(d2) entered blocking state [ 6.435560] br: port 2(d2) entered forwarding state [ 6.463080] br: port 1(d1) entered disabled state [ 6.490844] br: port 2(d2) entered disabled state [ 6.598615] br: port 2(d2) entered blocking state [ 6.598748] br: port 2(d2) entered forwarding state [ 6.613308] br: port 1(d1) entered blocking state [ 6.613441] br: port 1(d1) entered forwarding state [ 6.642907] br: port 1(d1) entered disabled state [ 6.669009] br: port 2(d2) entered disabled state [ 6.695567] br: port 3(d3) entered disabled state [ 6.798931] br: port 3(d3) entered blocking state [ 6.798993] br: port 3(d3) entered forwarding state [ 6.812275] br: port 2(d2) entered blocking state [ 6.812391] br: port 2(d2) entered forwarding state [ 6.825361] br: port 1(d1) entered blocking state [ 6.825464] br: port 1(d1) entered forwarding state [ 7.137017] br: port 1(d1) entered disabled state [ 7.241029] br: port 1(d1) entered blocking state [ 7.241134] br: port 1(d1) entered forwarding state [ 7.267706] br: port 2(d2) entered disabled state [ 7.375329] br: port 2(d2) entered blocking state [ 7.375402] br: port 2(d2) entered forwarding state [ 7.403114] br: port 1(d1) entered disabled state [ 7.428566] br: port 2(d2) entered disabled state [ 7.532821] br: port 2(d2) entered blocking state [ 7.532890] br: port 2(d2) entered forwarding state [ 7.546594] br: port 1(d1) entered blocking state [ 7.546700] br: port 1(d1) entered forwarding state [ 7.574509] br: port 1(d1) entered disabled state [ 7.600984] br: port 2(d2) entered disabled state [ 7.628665] br: port 3(d3) entered disabled state [ 7.752731] br: port 3(d3) entered blocking state [ 7.752841] br: port 3(d3) entered forwarding state [ 7.766828] br: port 2(d2) entered blocking state [ 7.766957] br: port 2(d2) entered forwarding state [ 7.780235] br: port 1(d1) entered blocking state [ 7.780315] br: port 1(d1) entered forwarding state [ 8.046112] br: port 1(d1) entered disabled state [ 8.264634] br: port 1(d1) entered blocking state [ 8.264750] br: port 1(d1) entered forwarding state [ 8.293027] br: port 2(d2) entered disabled state [ 8.492589] br: port 2(d2) entered blocking state [ 8.492701] br: port 2(d2) entered forwarding state [ 8.519118] br: port 1(d1) entered disabled state [ 8.545323] br: port 2(d2) entered disabled state [ 8.745047] br: port 2(d2) entered blocking state [ 8.745115] br: port 2(d2) entered forwarding state [ 8.757330] br: port 1(d1) entered blocking state [ 8.757396] br: port 1(d1) entered forwarding state [ 8.785342] br: port 1(d1) entered disabled state [ 8.812046] br: port 2(d2) entered disabled state [ 8.839060] br: port 3(d3) entered disabled state [ 9.037530] br: port 3(d3) entered blocking state [ 9.037593] br: port 3(d3) entered forwarding state [ 9.049910] br: port 2(d2) entered blocking state [ 9.049964] br: port 2(d2) entered forwarding state [ 9.062624] br: port 1(d1) entered blocking state [ 9.062688] br: port 1(d1) entered forwarding state [ 9.302864] br: port 1(d1) entered disabled state [ 9.501532] br: port 1(d1) entered blocking state [ 9.501677] br: port 1(d1) entered forwarding state [ 9.529973] br: port 2(d2) entered disabled state [ 9.740943] br: port 2(d2) entered blocking state [ 9.741015] br: port 2(d2) entered forwarding state [ 9.769315] br: port 1(d1) entered disabled state [ 9.799676] br: port 2(d2) entered disabled state [ 9.999842] br: port 2(d2) entered blocking state [ 9.999915] br: port 2(d2) entered forwarding state [ 10.013582] br: port 1(d1) entered blocking state [ 10.013653] br: port 1(d1) entered forwarding state [ 10.040607] br: port 1(d1) entered disabled state [ 10.066588] br: port 2(d2) entered disabled state [ 10.093003] br: port 3(d3) entered disabled state [ 10.288867] br: port 3(d3) entered blocking state [ 10.288936] br: port 3(d3) entered forwarding state [ 10.301888] br: port 2(d2) entered blocking state [ 10.301972] br: port 2(d2) entered forwarding state [ 10.314806] br: port 1(d1) entered blocking state [ 10.314891] br: port 1(d1) entered forwarding state [ 10.604230] d3: left allmulticast mode [ 10.604298] d3: left promiscuous mode [ 10.604401] br: port 3(d3) entered disabled state [ 10.681677] d2: left allmulticast mode [ 10.681742] d2: left promiscuous mode [ 10.681787] br: port 2(d2) entered disabled state [ 10.744079] d1: left allmulticast mode [ 10.744131] d1: left promiscuous mode [ 10.744167] br: port 1(d1) entered disabled state