[ 1.854036] GACT probability NOT on [ 2.423954] ------------[ cut here ]------------ [ 2.424007] refcount_t: underflow; use-after-free. [ 2.424057] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 2.424137] Modules linked in: act_gact cls_flower sch_ingress vxlan [ 2.424185] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 2.424248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.424289] Workqueue: netns cleanup_net [ 2.424324] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 2.424362] Code: bc 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 f5 bc 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 [ 2.424478] RSP: 0018:ffffb93600067d50 EFLAGS: 00010286 [ 2.424512] RAX: 0000000000000000 RBX: ffffb93600067d60 RCX: 00000000ffffdfff [ 2.424562] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 2.424611] RBP: ffffb93600067858 R08: ffffffffbd75ba28 R09: 00000000ffffdfff [ 2.424661] R10: ffffffffbd67ba40 R11: ffffffffbd72ba40 R12: dead000000000122 [ 2.424710] R13: 00000000fffb751c R14: 0000000000000001 R15: ffff915cc3ed5000 [ 2.424762] FS: 0000000000000000(0000) GS:ffff915d40d91000(0000) knlGS:0000000000000000 [ 2.424816] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.424863] CR2: 00000000004061e9 CR3: 00000000071e3005 CR4: 0000000000772ef0 [ 2.424913] PKRU: 55555554 [ 2.424938] Call Trace: [ 2.424960] [ 2.424982] netdev_run_todo+0x21a/0x550 [ 2.425014] ops_undo_list+0x1e3/0x1f0 [ 2.425045] cleanup_net+0x1b7/0x300 [ 2.425074] process_one_work+0x162/0x380 [ 2.425106] worker_thread+0x299/0x3c0 [ 2.425137] ? rescuer_thread+0x4c0/0x4c0 [ 2.425167] kthread+0x101/0x1f0 [ 2.425193] ? kthreads_online_cpu+0x110/0x110 [ 2.425232] ? kthreads_online_cpu+0x110/0x110 [ 2.425272] ret_from_fork+0x11c/0x140 [ 2.425306] ? kthreads_online_cpu+0x110/0x110 [ 2.425340] ret_from_fork_asm+0x11/0x20 [ 2.425372] [ 2.425393] ---[ end trace 0000000000000000 ]---