wifi: nl80211: reject oversized EMA RNR lists
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: reject oversized EMA RNR lists nl80211_parse_rnr_elems() stores the parsed element count in a u8-backed cfg80211_rnr_elems::cnt field and uses that count to size the flexible array allocation. Reject nested NL80211_ATTR_EMA_RNR_ELEMS input once the count reaches 255, before incrementing it again. This keeps the parser aligned with the data structure it fills and matches the existing bound check used by nl80211_parse_mbssid_elems().
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From 56189d7bc30531def6b999f27940ee43c6ff2569 · fixed in fc0ec2fc02dfe52c5821f36fbccf6a45df43f508; From dbbb27e183b1568d5a907ace1cd144b0709ea52a · fixed in 688fcac7054abc680c0eef753f2bb772cfaf8cf7; From dbbb27e183b1568d5a907ace1cd144b0709ea52a · fixed in 30c3fa80f423613efdda3deca4af52ff7d20e4e2; From dbbb27e183b1568d5a907ace1cd144b0709ea52a · fixed in 265c07c09c837621730d35f02975207a1224bf05; From dbbb27e183b1568d5a907ace1cd144b0709ea52a · fixed in ecbf3c45add30a0857414e156bdb9c79906f0ff6; From dbbb27e183b1568d5a907ace1cd144b0709ea52a · fixed in 4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1; From 6.1.160 · fixed in 6.1.176
- Linux Linux
6.4
- KernelLinux
fixed in 6.1.176; From 6.2.0 · fixed in 6.6.143; From 6.4.0 · fixed in 6.12.94; From 6.7.0 · fixed in 6.18.36; From 6.13.0 · fixed in 7.0.13