In the Linux kernel, the following vulnerability has been resolved:
wifi: nl80211: reject oversized EMA RNR lists
nl80211parsernrelems() stores the parsed element count in a u8-backed cfg80211rnr_elems::cnt field and uses that count to size the flexible array allocation.
Reject nested NL80211ATTREMARNRELEMS 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 nl80211parsembssid_elems().
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53182.json",
"cna_assigner": "Linux"
}