[ 15.337652] ------------[ cut here ]------------ [ 15.337734] refcount_t: underflow; use-after-free. [ 15.337796] WARNING: CPU: 3 PID: 66 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 15.337881] Modules linked in: nft_redir nft_chain_nat nf_nat nf_conntrack_netlink nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth [ 15.338023] CPU: 3 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 15.338135] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.338205] Workqueue: netns cleanup_net [ 15.338250] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 15.338300] Code: b9 e8 18 ed b9 ff 90 0f 0b 90 90 c3 80 3d d9 ea ea 00 00 75 89 c6 05 d0 ea ea 00 01 90 48 c7 c7 78 de 91 b9 e8 f5 ec b9 ff 90 <0f> 0b 90 90 c3 80 3d b4 ea ea 00 00 0f 85 62 ff ff ff c6 05 a7 ea [ 15.338445] RSP: 0018:ffffa3164024fd50 EFLAGS: 00010286 [ 15.338481] RAX: 0000000000000000 RBX: ffffa3164024fd60 RCX: 00000000ffffdfff [ 15.338542] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 15.338597] RBP: ffffa3164024f868 R08: ffffffffb9d56d28 R09: 00000000ffffdfff [ 15.338665] R10: ffffffffb9c76d40 R11: ffffffffb9d26d40 R12: dead000000000122 [ 15.338736] R13: 00000000fffba780 R14: 0000000000000001 R15: ffff919384c74000 [ 15.338791] FS: 0000000000000000(0000) GS:ffff919404958000(0000) knlGS:0000000000000000 [ 15.338870] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 15.338925] CR2: 000055eba8fe8dec CR3: 0000000007664004 CR4: 0000000000772ef0 [ 15.338982] PKRU: 55555554 [ 15.339011] Call Trace: [ 15.339044] [ 15.339074] netdev_run_todo+0x21a/0x550 [ 15.339125] ops_undo_list+0x1e3/0x1f0 [ 15.339177] cleanup_net+0x1b7/0x2b0 [ 15.339212] process_one_work+0x162/0x380 [ 15.339247] worker_thread+0x299/0x3c0 [ 15.339282] ? rescuer_thread+0x4c0/0x4c0 [ 15.339318] kthread+0x101/0x1f0 [ 15.339352] ? kthreads_online_cpu+0x110/0x110 [ 15.339395] ? kthreads_online_cpu+0x110/0x110 [ 15.339437] ret_from_fork+0x11c/0x140 [ 15.339474] ? kthreads_online_cpu+0x110/0x110 [ 15.339518] ret_from_fork_asm+0x11/0x20 [ 15.339564] [ 15.339581] ---[ end trace 0000000000000000 ]---