CVE-2026-53182wifi: nl80211: reject oversized EMA RNR lists
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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().
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 56189d7bc30531def6b999f27940ee43c6ff2569 before fc0ec2fc02dfe52c5821f36fbccf6a45df43f508; from dbbb27e183b1568d5a907ace1cd144b0709ea52a before 688fcac7054abc680c0eef753f2bb772cfaf8cf7; from dbbb27e183b1568d5a907ace1cd144b0709ea52a before 30c3fa80f423613efdda3deca4af52ff7d20e4e2; from dbbb27e183b1568d5a907ace1cd144b0709ea52a before 265c07c09c837621730d35f02975207a1224bf05; from dbbb27e183b1568d5a907ace1cd144b0709ea52a before ecbf3c45add30a0857414e156bdb9c79906f0ff6; from dbbb27e183b1568d5a907ace1cd144b0709ea52a before 4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1; from 6.1.160 before 6.1.176 | CNA record |
linux linux_kernel linux:linux_kernel | from 6.1.160 before 6.1.176; from 6.4 before 6.6.143; from 6.7 before 6.12.94; from 6.13 before 6.18.36; from 6.19 before 7.0.13; 7.1; 7.1; 7.1; and 3 more ranges | NVD |
References
- https://git.kernel.org/stable/c/fc0ec2fc02dfe52c5821f36fbccf6a45df43f508patch
- https://git.kernel.org/stable/c/688fcac7054abc680c0eef753f2bb772cfaf8cf7patch
- https://git.kernel.org/stable/c/30c3fa80f423613efdda3deca4af52ff7d20e4e2patch
- https://git.kernel.org/stable/c/265c07c09c837621730d35f02975207a1224bf05patch
- https://git.kernel.org/stable/c/ecbf3c45add30a0857414e156bdb9c79906f0ff6patch
- https://git.kernel.org/stable/c/4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.