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CVE WatchJul 30, 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

High

EPSS

0.1%

p3

KEV

—

Exploit Today

1

0-100

Published: Dec 16, 2025 · Last modified: Jul 30, 2026

EPSS · 30d
0.1%EPSS · 30 days0.1%
2026-08-042026-09-01
Technical description

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.

Official references
Related CVEs

No related CVEs by CWE or product.