Yüksek CVSS 7.8

CVE-2026-46331: Linux Kernel: tamsayı taşması

Yayın: 16 Haziran 2026 11:16 · Güncelleme: 6 Kasım 2026 10:19

Açıklama (NVD)

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key loop using tcfp_off_max_hint, but the hint does not account for the runtime header offset added by typed keys. This can leave part of the write region un-COW'd. Fix by moving skb_ensure_writable() inside the per-key loop where the actual write offset is known, and add overflow checking on the offset arithmetic. For negative offsets (e.g. Ethernet header edits at ingress), use skb_cow() to COW the headroom instead. Guard offset_valid() against INT_MIN, where negation is undefined.

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: %0,64 (yüzdelik 51)
CWE: CWE-190
Yama: Mevcut

Etkilenen sürümler

Ürün	Başlangıç	Bitiş	Düzeltildi
linux-linux-kernel	4.19.244	—	4.20
linux-linux-kernel	5.4.195	—	5.5
linux-linux-kernel	5.10.117	—	5.11
linux-linux-kernel	5.15.41	—	5.16
linux-linux-kernel	5.17.9	—	5.18
linux-linux-kernel	5.18.1	—	6.12.94
linux-linux-kernel	6.13	—	6.18.36
linux-linux-kernel	6.19	—	7.0.13
linux-linux-kernel	5.18	5.18	—
linux-linux-kernel	5.18	5.18	—
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	—
linux-linux-kernel	7.1	7.1	—
linux-linux-kernel	7.1	7.1	—

Kaynaklar

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