CVE Watch15 oct 2026

CVE-2025-68317

In the Linux kernel, the following vulnerability has been resolved: io_uring/zctx: check chained notif contexts Send zc only links ubuf_in

CVSS

7.8

Alto

EPSS

0.1%

KEV

—

Exploit Today

0-100

Publicado: 16 dic 2025 · Última mod.: 15 oct 2026

EPSS · 30d

0.1%EPSS · 30 días0.1%

2026-09-302026-10-27

Descripción técnica

In the Linux kernel, the following vulnerability has been resolved: io_uring/zctx: check chained notif contexts Send zc only links ubuf_info for requests coming from the same context. There are some ambiguous syz reports, so let's check the assumption on notification completion.

Referencias oficiales

git.kernel.orghttps://git.kernel.org/stable/c/aaafd17d3f4be2c15539359a5b4bfa00237f687f
git.kernel.orghttps://git.kernel.org/stable/c/ab3ea6eac5f45669b091309f592c4ea324003053
git.kernel.orghttps://git.kernel.org/stable/c/d664a3ce3a604231a0b144c152a3755d03b18b60

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