[ 11.149353] ip (475) used greatest stack depth: 12136 bytes left [ 11.435792] ------------[ cut here ]------------ [ 11.435855] refcount_t: underflow; use-after-free. [ 11.435902] WARNING: CPU: 3 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 11.435965] Modules linked in: pktgen [ 11.435998] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 11.436069] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.436116] Workqueue: netns cleanup_net [ 11.436163] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 11.436217] Code: a0 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 a0 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 [ 11.436386] RSP: 0018:ffffa19a00067d50 EFLAGS: 00010286 [ 11.436419] RAX: 0000000000000000 RBX: ffffa19a00067d60 RCX: 00000000ffffdfff [ 11.436474] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 11.436543] RBP: ffffa19a00067858 R08: ffffffffa0b5ba28 R09: 00000000ffffdfff [ 11.436596] R10: ffffffffa0a7ba40 R11: ffffffffa0b2ba40 R12: dead000000000122 [ 11.436648] R13: 00000000fffb9847 R14: 0000000000000001 R15: ffff929383182000 [ 11.436704] FS: 0000000000000000(0000) GS:ffff92941db11000(0000) knlGS:0000000000000000 [ 11.436772] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.436817] CR2: 00007f7f7a51c000 CR3: 000000001d246002 CR4: 0000000000772ef0 [ 11.436871] PKRU: 55555554 [ 11.436894] Call Trace: [ 11.436913] [ 11.436935] netdev_run_todo+0x21a/0x550 [ 11.436968] ops_undo_list+0x1e3/0x1f0 [ 11.437004] cleanup_net+0x1b7/0x300 [ 11.437039] process_one_work+0x162/0x380 [ 11.437073] worker_thread+0x299/0x3c0 [ 11.437105] ? rescuer_thread+0x4c0/0x4c0 [ 11.437144] kthread+0x101/0x1f0 [ 11.437175] ? kthreads_online_cpu+0x110/0x110 [ 11.437215] ? kthreads_online_cpu+0x110/0x110 [ 11.437252] ret_from_fork+0x11c/0x140 [ 11.437285] ? kthreads_online_cpu+0x110/0x110 [ 11.437324] ret_from_fork_asm+0x11/0x20 [ 11.437361] [ 11.437383] ---[ end trace 0000000000000000 ]---