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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 7.1NVD modified 2026-10-16 20:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 8
- https://git.kernel.org/stable/c/06a76334243ccd875a981aa8bb46c0f931ef1e3b
- https://git.kernel.org/stable/c/24683fea1f06bd3bd2707b99460e859bc6464c22
- https://git.kernel.org/stable/c/305b63e1402267459fdabb183af4527f6799eebf
- https://git.kernel.org/stable/c/32ec8d4aba2cf22e12bdc28df8c4bd833c195fc0
- https://git.kernel.org/stable/c/402befce5854c195058cf4bab7c78ca286068a26
- https://git.kernel.org/stable/c/d186f77d18bdfb252d401ff992ca3001a6a65a0f
- https://git.kernel.org/stable/c/dee686b5e7f21180538ff719867702f411c8eb5c
- https://git.kernel.org/stable/c/f76ab783e7d8d33e33dd7dfa697297f70d57b0e8