CVE-2026-64422 net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes

🗓️ 25 Jul 2026 08:51:00Reported by GoogleType

osv

osv🔗 osv.dev👁 1 Views

Resolved Linux kernel issue: bound reordering and MTU probe size handling to prevent overflow.

Reporter	Title	Published	Views	Family All 10
CVE	CVE-2026-64422	25 Jul 202608:51	–	cve
Cvelist	CVE-2026-64422 net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes	25 Jul 202608:51	–	cvelist
Debian CVE	CVE-2026-64422	25 Jul 202608:51	–	debiancve
EUVD	EUVD-2026-48966	25 Jul 202608:51	–	euvd
NVD	CVE-2026-64422	25 Jul 202610:17	–	nvd
OSV	DEBIAN-CVE-2026-64422	25 Jul 202610:17	–	osv
OSV	ECHO-8163-A595-7D73	26 Jul 202602:26	–	osv
Positive Technologies	PT-2026-64643	25 Jul 202600:00	–	ptsecurity
SUSE CVE	SUSE CVE-2026-64422	25 Jul 202615:59	–	susecve
Tenable Nessus	Linux Distros Unpatched Vulnerability : CVE-2026-64422	25 Jul 202600:00	–	nessus

Source	Link
git	www.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
git	www.git.kernel.org/stable/c/27ddf4486c7dbf5bdd393fa8bef6b67179796d98
git	www.git.kernel.org/stable/c/782708ca1ea1f68b8cbb5ea3a7f5f18d0000efae
git	www.git.kernel.org/stable/c/99206ce2244f8a3ed64298d0667c9055845a5dc7
git	www.git.kernel.org/stable/c/a094ac95d3b69adfa1676eb9c8eae6835d4f1671
git	www.git.kernel.org/stable/c/bbae351c0f32f7c200249e4aa6561b2b419dcf69
git	www.git.kernel.org/stable/c/e81f805824a8109504fce090641b17d135b48cd1
git	www.git.kernel.org/stable/c/efb8763d7bbb40cff4cc55a6b62c3095a038149c
git	www.git.kernel.org/stable/c/f0d88a4cd03affff6c08adf6c63964e235aede43
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64422.json

26 Jul 2026 05:17Current

5.8Medium risk

Vulners AI Score5.8

EPSS0.00231

linux kernel transmission control reordering mtu probe sizes sysctl validation network namespace relocation