Yüksek CVSS 7.8

CVE-2026-46323: Linux Kernel: serbest bırakılmış belleğin kullanımı

Yayın: 9 Haziran 2026 16:16 · Güncelleme: 6 Kasım 2026 10:19

Açıklama (NVD)

In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skb_gro_receive() can currently copy frags between the source and GRO skb, without checking the zerocopy status, and in particular the SKBFL_MANAGED_FRAG_REFS flag. When SKBFL_MANAGED_FRAG_REFS is set, the skb doesn't hold a reference on the pages in shinfo->frags. Appending those frags to another skb's frags without fixing up the page refcount can lead to UAF. When either the last skb in the GRO chain (the one we would append frags to) or the source skb is zerocopy, don't merge the skbs.

Özet bilgiler

Ürün: Linux Linux Kernel
CVSS v3.1: 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: %0,14 (yüzdelik 3)
CWE: CWE-416
Yama: Mevcut

Etkilenen sürümler

Ürün	Başlangıç	Bitiş	Düzeltildi
linux-linux-kernel	6.0	—	6.1.176
linux-linux-kernel	6.2	—	6.6.142
linux-linux-kernel	6.7	—	6.12.92
linux-linux-kernel	6.13	—	6.18.34
linux-linux-kernel	6.19	—	7.0.11
linux-linux-kernel	7.1	7.1	—
linux-linux-kernel	7.1	7.1	—
linux-linux-kernel	7.1	7.1	—
linux-linux-kernel	7.1	7.1	—

Kaynaklar

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