[ 2.960213] eth1: renamed from tmp [ 10.912133] ------------[ cut here ]------------ [ 10.912256] refcount_t: underflow; use-after-free. [ 10.912318] WARNING: CPU: 3 PID: 592 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 10.912385] Modules linked in: [ 10.912422] CPU: 3 UID: 0 PID: 592 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 10.912488] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.912537] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 10.912579] Code: bb 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 75 bb 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 [ 10.912741] RSP: 0018:ffff9bab40c07730 EFLAGS: 00010282 [ 10.912781] RAX: 0000000000000000 RBX: ffff9bab40c07740 RCX: 00000000ffffdfff [ 10.912843] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 10.912900] RBP: ffff9bab40c07238 R08: ffffffffbbf5ba28 R09: 00000000ffffdfff [ 10.912958] R10: ffffffffbbe7ba40 R11: ffffffffbbf2ba40 R12: dead000000000122 [ 10.913023] R13: 00000000fffb9639 R14: 0000000000000001 R15: ffff8fa6068ae000 [ 10.913086] FS: 00007f5984fc1800(0000) GS:ffff8fa682711000(0000) knlGS:0000000000000000 [ 10.913148] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.913195] CR2: 00000000004e5a38 CR3: 00000000046cb005 CR4: 0000000000772ef0 [ 10.913252] PKRU: 55555554 [ 10.913273] Call Trace: [ 10.913299] [ 10.913319] netdev_run_todo+0x21a/0x550 [ 10.913357] rtnl_dellink+0x15b/0x350 [ 10.913397] ? virtio_fs_enqueue_req+0x352/0x570 [ 10.913441] ? netdev_run_todo+0x63/0x550 [ 10.913467] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 10.913506] rtnetlink_rcv_msg+0x358/0x400 [ 10.913540] ? get_page_from_freelist+0x15b4/0x1770 [ 10.913581] ? rtnl_calcit.isra.0+0x110/0x110 [ 10.913629] netlink_rcv_skb+0x57/0x100 [ 10.913669] netlink_unicast+0x252/0x380 [ 10.913702] ? __alloc_skb+0xdb/0x190 [ 10.913742] netlink_sendmsg+0x1be/0x3e0 [ 10.913775] ____sys_sendmsg+0x132/0x260 [ 10.913823] ? copy_msghdr_from_user+0x6c/0xa0 [ 10.913865] ___sys_sendmsg+0x87/0xd0 [ 10.913896] ? do_wp_page+0x369/0xe90 [ 10.913935] ? ___pte_offset_map+0x1b/0xd0 [ 10.913971] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 10.914021] ? fsnotify_grab_connector+0x48/0x80 [ 10.914067] ? fsnotify_destroy_marks+0x29/0x150 [ 10.914107] __sys_sendmsg+0x71/0xd0 [ 10.914139] do_syscall_64+0xa4/0xfd0 [ 10.914177] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.914219] RIP: 0033:0x7f598518f1d7 [ 10.914253] 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 [ 10.914376] RSP: 002b:00007ffde3c1b9d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 10.914432] RAX: ffffffffffffffda RBX: 00007ffde3c1c110 RCX: 00007f598518f1d7 [ 10.914487] RDX: 0000000000000000 RSI: 00007ffde3c1ba40 RDI: 0000000000000005 [ 10.914537] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 10.914596] R10: 00007f598508b510 R11: 0000000000000246 R12: 0000000000000002 [ 10.914659] R13: 00000000690ded1a R14: 0000000000499600 R15: 0000000000000000 [ 10.914715] [ 10.914744] ---[ end trace 0000000000000000 ]--- [ 10.922957] ip (592) used greatest stack depth: 11744 bytes left [ 11.640217] eth1: renamed from tmp [ 20.421267] eth1: renamed from tmp [ 29.221204] eth1: renamed from tmp [ 34.218286] eth1: renamed from tmp [ 39.157259] eth1: renamed from tmp [ 133.877243] eth1: renamed from tmp [ 136.656250] eth2: renamed from tmp [ 194.301262] eth1: renamed from tmp [ 274.713276] eth1: renamed from tmp [ 282.118244] eth1: renamed from tmp [ 285.378228] eth1: renamed from tmp [ 289.810158] eth1: renamed from tmp [ 296.213199] eth1: renamed from tmp [ 302.644188] eth1: renamed from tmp [ 309.123207] eth1: renamed from tmp [ 315.639182] eth1: renamed from tmp [ 322.112215] eth1: renamed from tmp [ 328.555246] eth1: renamed from tmp [ 335.025212] eth1: renamed from tmp [ 341.522213] eth1: renamed from tmp [ 348.032243] eth1: renamed from tmp [ 354.514269] eth1: renamed from tmp [ 360.994187] eth1: renamed from tmp [ 367.484256] eth1: renamed from tmp [ 374.050267] eth1: renamed from tmp [ 380.558206] eth1: renamed from tmp [ 386.995246] eth1: renamed from tmp [ 393.435271] eth1: renamed from tmp [ 399.825259] eth1: renamed from tmp [ 406.286230] eth1: renamed from tmp [ 412.709218] eth1: renamed from tmp [ 419.088242] eth1: renamed from tmp [ 425.523254] eth1: renamed from tmp [ 432.015206] eth1: renamed from tmp [ 438.472225] eth1: renamed from tmp [ 444.892248] eth1: renamed from tmp [ 451.298216] eth1: renamed from tmp [ 457.729221] eth1: renamed from tmp [ 464.169221] eth1: renamed from tmp [ 470.669245] eth1: renamed from tmp [ 477.056238] eth1: renamed from tmp [ 483.524225] eth1: renamed from tmp [ 490.000229] eth1: renamed from tmp