CVE-2026-63922
CVSS 9.8 · KritikNVD: Analyzed
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh after handling HAO option ip6_parse_tlv() caches skb_network_header(skb) in nh while walking IPv6 TLVs. ipv6_dest_hao() may call pskb_expand_head() for a cloned skb, which can move the skb head and invalidate the cached network header pointer. Refresh nh after ipv6_dest_hao() returns so any trailing padding or TLVs are parsed from the current skb head. This matches the existing pattern used in ip6_parse_tlv() after helpers that can modify skb header storage.
Yayın: 19.07.2026 · Son değişiklik: 27.10.2026 · Zayıflık: CWE-416
CVSS 3.1 metrikleri
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Saldırı vektörü | Ağ (uzaktan) |
| Karmaşıklık | Düşük |
| Gereken yetki | Yok |
| Kullanıcı etkileşimi | Gerekmez |
| Kapsam | Değişmez |
| Gizlilik | Yüksek |
| Bütünlük | Yüksek |
| Erişilebilirlik | Yüksek |
Hesaplanan temel puan: 9.8. CVSS hesaplayıcıda incele
Referanslar
- https://git.kernel.org/stable/c/12d957979e4a800167842f1b42be6a606d227ebe
- https://git.kernel.org/stable/c/1a11eb7431e3d2882f5bd5939c5a9bbc65ccf4d1
- https://git.kernel.org/stable/c/751db1b802a067b7fff25880f4e9f9152a171538
- https://git.kernel.org/stable/c/9b6dcc0a39fd71752937f0b6b3973e1416085dcf
- https://git.kernel.org/stable/c/b3ac54e5c905f86d22b502eacb5686a282c5659f
- https://git.kernel.org/stable/c/f7b52afe3592eae66e160586b45a3f2242972c63
- https://git.kernel.org/stable/c/f8aabed3ff3e986920cf02a2a2785e08e586b234
- https://git.kernel.org/stable/c/ff375ed1cba81392346c5bfbf0bb7a13b2946f99