CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix dev use-after-free in xfrm async resumption xfrm async resumption hold skb->dev refcnt until after transport_finish. However, xfrm_rcv_cb may modify skb->dev to tunnel dev without taking device reference, such as vti_rcv_cb. The subsequent async resumption will decrement the tunnel device's reference count, which lead to uaf of tunnel dev and refcnt leak of orig dev as below: unregister_netdevice: waiting for vti1 to become free. Usage count = -2 Stash the original skb->dev to fix refcnt imbalance. The new skb->dev set by xfrm_rcv_cb can race with device teardown. Extend rcu protection over xfrm_rcv_cb and transport_finish to prevent races.
Засегнати продукти
- Linux Linux: 4236c30b437b80f673b9e08c8fae38b8d471ac9e преди fed4d3195a31125566876952ce66113ec1eb9008; 0f451b43c88bf2b9c038b414be580efee42e031b преди 1acd93259b6be269e26be5d71c224bccd1f8352f; 1c428b03840094410c5fb6a5db30640486bbbfcb преди 63a30015199912bd5055bead8001b1ae68a67cdb; 1c428b03840094410c5fb6a5db30640486bbbfcb преди 8045c0df98d4f14c54e5cb875f1c9c0ce89fe4ff; 4d06caedea587c59cc2cc893ceecc57c75c64312; 94439cbe478b53f92223da9aae95fffb28623c3f; 5002beda5cac69d522dc54da0d5d463ed9c963d2; 6.12.94 преди 6.12.112; 6.18.23 преди 6.18.54; 6.1.191 преди 6.2; 6.6.160 преди 6.7; 6.19.13 преди 6.20
- Linux Linux: 7.0; преди 7.0; 6.12.112 до 6.12.*; 6.18.54 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък
История
- 15 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-72463
- https://nvd.nist.gov/vuln/detail/CVE-2026-72463
- https://git.kernel.org/stable/c/fed4d3195a31125566876952ce66113ec1eb9008
- https://git.kernel.org/stable/c/1acd93259b6be269e26be5d71c224bccd1f8352f
- https://git.kernel.org/stable/c/63a30015199912bd5055bead8001b1ae68a67cdb
- https://git.kernel.org/stable/c/8045c0df98d4f14c54e5cb875f1c9c0ce89fe4ff