[ 2.296557] ------------[ cut here ]------------ [ 2.296630] refcount_t: underflow; use-after-free. [ 2.296693] WARNING: CPU: 0 PID: 68 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 2.296765] Modules linked in: [ 2.296813] CPU: 0 UID: 0 PID: 68 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 2.296875] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.296914] Workqueue: netns cleanup_net [ 2.296951] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 2.296992] Code: 89 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 89 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 [ 2.297110] RSP: 0018:ffffa3484025fd50 EFLAGS: 00010286 [ 2.297149] RAX: 0000000000000000 RBX: ffffa3484025fd60 RCX: 00000000ffffdfff [ 2.297203] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 2.297250] RBP: ffffa3484025f858 R08: ffffffff89f5ba28 R09: 00000000ffffdfff [ 2.297311] R10: ffffffff89e7ba40 R11: ffffffff89f2ba40 R12: dead000000000122 [ 2.297366] R13: 00000000fffb7499 R14: 0000000000000001 R15: ffff900244eff000 [ 2.297414] FS: 0000000000000000(0000) GS:ffff9002f4591000(0000) knlGS:0000000000000000 [ 2.297474] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.297520] CR2: 000055d2e48855a0 CR3: 0000000004f79001 CR4: 0000000000772ef0 [ 2.297577] PKRU: 55555554 [ 2.297593] Call Trace: [ 2.297611] [ 2.297632] netdev_run_todo+0x21a/0x550 [ 2.297664] ops_undo_list+0x1e3/0x1f0 [ 2.297701] cleanup_net+0x1b7/0x300 [ 2.297745] process_one_work+0x162/0x380 [ 2.297796] worker_thread+0x299/0x3c0 [ 2.297828] ? rescuer_thread+0x4c0/0x4c0 [ 2.297860] kthread+0x101/0x1f0 [ 2.297901] ? kthreads_online_cpu+0x110/0x110 [ 2.297941] ? kthreads_online_cpu+0x110/0x110 [ 2.297981] ret_from_fork+0x11c/0x140 [ 2.298016] ? kthreads_online_cpu+0x110/0x110 [ 2.298054] ret_from_fork_asm+0x11/0x20 [ 2.298088] [ 2.298109] ---[ end trace 0000000000000000 ]--- [ 2.540256] ip (295) used greatest stack depth: 12168 bytes left [ 2.561127] veth0: renamed from ioam-veth-alpha [ 2.570939] veth0: renamed from ioam-veth-betaL [ 2.581675] veth1: renamed from ioam-veth-betaR [ 2.592680] veth0: renamed from ioam-veth-gamma