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VULNERABILITIES

CVE-2026-72450 Details

Description

In the Linux kernel, the following vulnerability has been resolved: xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrm_selector_match() due to AF_UNSPEC selector with large prefixlen (e.g. 128) matched against IPv4 flow (when XFRM_STATE_AF_UNSPEC is set). Fix this by: - Rejecting mismatched families in xfrm_selector_match. - Returning false in addr4_match if prefixlen > 32. - Returning false in addr_match if prefixlen > 128 (prevents overflow).

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/40f0b1047918539f0b0f795ac65e35336b4c2c78 kernel.org
https://git.kernel.org/stable/c/5a03a2ee17e8259dde631ed84fd8322db06cb2ae kernel.org
https://git.kernel.org/stable/c/6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe kernel.org
https://git.kernel.org/stable/c/78783fefdc8f36879b1a17efa0d3195ea5f2dc5f kernel.org
https://git.kernel.org/stable/c/87a5bbccc7ff4edb3f42fea387124237d2ba91ee kernel.org

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-72450
NVD Published Date:
Aug 15, 2026
NVD Last Modified:
Aug 17, 2026
Source:
kernel.org
CVE-2026-72450 Details - Not Deferred