[ 1.736133] ------------[ cut here ]------------ [ 1.736219] refcount_t: underflow; use-after-free. [ 1.736283] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 1.736356] Modules linked in: veth [ 1.736392] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 1.736476] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1.736525] Workqueue: netns cleanup_net [ 1.736566] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 1.736611] Code: a4 e8 f8 c3 ba ff 90 0f 0b 90 90 c3 80 3d 39 c1 eb 00 00 75 89 c6 05 30 c1 eb 00 01 90 48 c7 c7 30 a0 f1 a4 e8 d5 c3 ba ff 90 <0f> 0b 90 90 c3 80 3d 14 c1 eb 00 00 0f 85 62 ff ff ff c6 05 07 c1 [ 1.736742] RSP: 0018:ffffae2e00067d50 EFLAGS: 00010286 [ 1.736787] RAX: 0000000000000000 RBX: ffffae2e00067d60 RCX: 00000000ffffdfff [ 1.736848] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 1.736906] RBP: ffffae2e00067880 R08: ffffffffa5356a28 R09: 00000000ffffdfff [ 1.736967] R10: ffffffffa5276a40 R11: ffffffffa5326a40 R12: dead000000000122 [ 1.737024] R13: 00000000fffb726b R14: 0000000000000001 R15: ffff94eb84a39000 [ 1.737099] FS: 0000000000000000(0000) GS:ffff94ec191e2000(0000) knlGS:0000000000000000 [ 1.737192] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1.737243] CR2: 00007fa5a664a000 CR3: 00000000049bb004 CR4: 0000000000772ef0 [ 1.737307] PKRU: 55555554 [ 1.737330] Call Trace: [ 1.737352] [ 1.737378] netdev_run_todo+0x21a/0x550 [ 1.737419] ops_undo_list+0x1e3/0x1f0 [ 1.737456] cleanup_net+0x1b7/0x2b0 [ 1.737490] process_one_work+0x162/0x380 [ 1.737530] worker_thread+0x299/0x3c0 [ 1.737564] ? rescuer_thread+0x4c0/0x4c0 [ 1.737597] kthread+0x101/0x1f0 [ 1.737633] ? kthreads_online_cpu+0x110/0x110 [ 1.737675] ? kthreads_online_cpu+0x110/0x110 [ 1.737719] ret_from_fork+0x11c/0x140 [ 1.737757] ? kthreads_online_cpu+0x110/0x110 [ 1.737810] ret_from_fork_asm+0x11/0x20 [ 1.737851] [ 1.737875] ---[ end trace 0000000000000000 ]---