CVE-2026-53182
wifi: nl80211: reject oversized EMA RNR lists
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 25, 2026 |
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Affected Versions
Linux / Linux
56189d7bc30531def6b999f27940ee43c6ff2569 < fc0ec2fc02dfe52c5821f36fbccf6a45df43f508 dbbb27e183b1568d5a907ace1cd144b0709ea52a < 688fcac7054abc680c0eef753f2bb772cfaf8cf7 dbbb27e183b1568d5a907ace1cd144b0709ea52a < 30c3fa80f423613efdda3deca4af52ff7d20e4e2 dbbb27e183b1568d5a907ace1cd144b0709ea52a < 265c07c09c837621730d35f02975207a1224bf05 dbbb27e183b1568d5a907ace1cd144b0709ea52a < ecbf3c45add30a0857414e156bdb9c79906f0ff6 dbbb27e183b1568d5a907ace1cd144b0709ea52a < 4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1 6.1.160 < 6.1.176
Linux / Linux
6.4
References
git.kernel.org: https://git.kernel.org/stable/c/fc0ec2fc02dfe52c5821f36fbccf6a45df43f508 git.kernel.org: https://git.kernel.org/stable/c/688fcac7054abc680c0eef753f2bb772cfaf8cf7 git.kernel.org: https://git.kernel.org/stable/c/30c3fa80f423613efdda3deca4af52ff7d20e4e2 git.kernel.org: https://git.kernel.org/stable/c/265c07c09c837621730d35f02975207a1224bf05 git.kernel.org: https://git.kernel.org/stable/c/ecbf3c45add30a0857414e156bdb9c79906f0ff6 git.kernel.org: https://git.kernel.org/stable/c/4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1