[ 3.487377] GACT probability NOT on [ 3.488762] tc (603) used greatest stack depth: 11840 bytes left [ 4.147596] ------------[ cut here ]------------ [ 4.147691] refcount_t: underflow; use-after-free. [ 4.147780] WARNING: CPU: 0 PID: 68 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 4.147862] Modules linked in: act_gact cls_flower sch_ingress vxlan [ 4.147927] CPU: 0 UID: 0 PID: 68 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 4.148007] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4.148067] Workqueue: netns cleanup_net [ 4.148105] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 4.148174] Code: bd 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 bd 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 [ 4.148300] RSP: 0018:ffffa94d0025fd50 EFLAGS: 00010286 [ 4.148376] RAX: 0000000000000000 RBX: ffffa94d0025fd60 RCX: 00000000ffffdfff [ 4.148437] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 4.148511] RBP: ffffa94d0025f858 R08: ffffffffbdb5ba28 R09: 00000000ffffdfff [ 4.148622] R10: ffffffffbda7ba40 R11: ffffffffbdb2ba40 R12: dead000000000122 [ 4.148685] R13: 00000000fffb7bcf R14: 0000000000000001 R15: ffff9db4c3a5e000 [ 4.148783] FS: 0000000000000000(0000) GS:ffff9db540991000(0000) knlGS:0000000000000000 [ 4.148851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.148917] CR2: 00000000004061e9 CR3: 0000000005dbd005 CR4: 0000000000772ef0 [ 4.148975] PKRU: 55555554 [ 4.148998] Call Trace: [ 4.149021] [ 4.149048] netdev_run_todo+0x21a/0x550 [ 4.149092] ops_undo_list+0x1e3/0x1f0 [ 4.149126] cleanup_net+0x1b7/0x300 [ 4.149196] process_one_work+0x162/0x380 [ 4.149261] worker_thread+0x299/0x3c0 [ 4.149295] ? rescuer_thread+0x4c0/0x4c0 [ 4.149325] kthread+0x101/0x1f0 [ 4.149378] ? kthreads_online_cpu+0x110/0x110 [ 4.149451] ? kthreads_online_cpu+0x110/0x110 [ 4.149500] ret_from_fork+0x11c/0x140 [ 4.149571] ? kthreads_online_cpu+0x110/0x110 [ 4.149639] ret_from_fork_asm+0x11/0x20 [ 4.149677] [ 4.149704] ---[ end trace 0000000000000000 ]---