[ 16.450090] pm_nl_ctl (756) used greatest stack depth: 12000 bytes left [ 31.934058] ------------[ cut here ]------------ [ 31.934140] refcount_t: underflow; use-after-free. [ 31.934219] WARNING: CPU: 3 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 31.934312] Modules linked in: [ 31.934351] CPU: 3 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 31.934446] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.934517] Workqueue: netns cleanup_net [ 31.934555] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 31.934595] Code: a4 e8 48 df ba ff 90 0f 0b 90 90 c3 80 3d c9 50 ec 00 00 75 89 c6 05 c0 50 ec 00 01 90 48 c7 c7 c8 4a f2 a4 e8 25 df ba ff 90 <0f> 0b 90 90 c3 80 3d a4 50 ec 00 00 0f 85 62 ff ff ff c6 05 97 50 [ 31.934730] RSP: 0018:ffffad71c0257d50 EFLAGS: 00010286 [ 31.934768] RAX: 0000000000000000 RBX: ffffad71c0257d60 RCX: 00000000ffffdfff [ 31.934824] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 31.934896] RBP: ffffad71c0257878 R08: ffffffffa535ca28 R09: 00000000ffffdfff [ 31.934953] R10: ffffffffa527ca40 R11: ffffffffa532ca40 R12: dead000000000122 [ 31.935019] R13: 00000000fffbe849 R14: 0000000000000001 R15: ffff8932c3fda000 [ 31.935089] FS: 0000000000000000(0000) GS:ffff893359340000(0000) knlGS:0000000000000000 [ 31.935149] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.935209] CR2: 00007fff1c6c8ff0 CR3: 0000000006617006 CR4: 0000000000772ef0 [ 31.935261] PKRU: 55555554 [ 31.935295] Call Trace: [ 31.935313] [ 31.935336] netdev_run_todo+0x21a/0x550 [ 31.935387] ops_undo_list+0x1e3/0x1f0 [ 31.935416] cleanup_net+0x1b7/0x2b0 [ 31.935459] process_one_work+0x162/0x380 [ 31.935510] worker_thread+0x299/0x3c0 [ 31.935556] ? rescuer_thread+0x4c0/0x4c0 [ 31.935603] kthread+0x101/0x1f0 [ 31.935646] ? kthreads_online_cpu+0x110/0x110 [ 31.935695] ? kthreads_online_cpu+0x110/0x110 [ 31.935730] ret_from_fork+0x11c/0x140 [ 31.935767] ? kthreads_online_cpu+0x110/0x110 [ 31.935801] ret_from_fork_asm+0x11/0x20 [ 31.935836] [ 31.935866] ---[ end trace 0000000000000000 ]---