CVE-2026-74564

CVE CVE-2026-74564EUVD EUVD-2026-59629Published 2026-08-15T12:28:06.000ZLast changed 2026-08-19T16:39:04.000ZCVSS 7.1

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_hashlimit: validate hashtable supports XT_HASHLIMIT_RATE_MATCH The XT_HASHLIMIT_RATE_MATCH flag mode changes the semantics of the dsthash_ent structure which represents an entry in the hashtable. There is a union area which uses a different layout to express the rate match mode. Update .checkentry path to validate the XT_HASHLIMIT_RATE_MATCH mode flag is requested by two or more different rules that refer to the same hashtable. Otherwise, uninitialized access to the burst field in the union is possible. Reject the use of the XT_HASHLIMIT_RATE_MATCH mode flag if set on by revision less than 3 too.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 6.18.44; 4.14; patch: 7.1.8; bea74641e3786d51dcf1175527cc1781420961c9 <305b63e1402267459fdabb183af4527f6799eebf; patch: 6.6.151; bea74641e3786d51dcf1175527cc1781420961c9 <06a76334243ccd875a981aa8bb46c0f931ef1e3b; patch: 5.15.216; bea74641e3786d51dcf1175527cc1781420961c9 <402befce5854c195058cf4bab7c78ca286068a26; bea74641e3786d51dcf1175527cc1781420961c9 <dee686b5e7f21180538ff719867702f411c8eb5c; patch: 6.1.183; bea74641e3786d51dcf1175527cc1781420961c9 <f76ab783e7d8d33e33dd7dfa697297f70d57b0e8; bea74641e3786d51dcf1175527cc1781420961c9 <32ec8d4aba2cf22e12bdc28df8c4bd833c195fc0; patch: 6.12.103; patch: 5.10.265; patch: 7.2; bea74641e3786d51dcf1175527cc1781420961c9 <d186f77d18bdfb252d401ff992ca3001a6a65a0f; bea74641e3786d51dcf1175527cc1781420961c9 <24683fea1f06bd3bd2707b99460e859bc6464c22; patch: 0

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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