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CVE-2026-93784: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: validate IEs in cfg80211_wext_siwgenie() The KASAN allocation trace shows that a malformed IE buffer is stored via SIOCSIWGENIE (cfg80211_wext_siwgenie()) without any validation. The crash trace shows that a subsequent SIOCSIWESSID triggers a connection attempt which calls cfg80211_sme_get_conn_ies() to process the stored IE buffer, causing: - An out-of-bounds read in skip_ie() which reads ies[pos+1] (the length byte) past the end of the 1-byte buffer. - An integer underflow in the memcpy size argument when offs returned by ieee80211_ie_split() exceeds ies_len, causing unsigned subtraction to wrap to SIZE_MAX and triggering a fortify panic. Fix this by validating the IE buffer in cfg80211_wext_siwgenie() before storing it. [drop unnecessary ie_len check, update commit message]

    Засегнати продукти

    • Linux Linux: f21293549f60f88c74fcb9944737f11048896dc4 преди 269498ce6c1e2132b072aa0c8660404926008f03; f21293549f60f88c74fcb9944737f11048896dc4 преди 685082f4be77f4657b498ebbe9f942ef65c492cf; f21293549f60f88c74fcb9944737f11048896dc4 преди 8b921a8993469a3482e0c67b5ce5cb6ce93f5f61; f21293549f60f88c74fcb9944737f11048896dc4 преди d01f1600e8b075aa17adb751ac9881bb6ee40dcc; f21293549f60f88c74fcb9944737f11048896dc4 преди c970879e03b23a27df42caf7ba506485a165fb96; f21293549f60f88c74fcb9944737f11048896dc4 преди 01cc395cecfaa73134d39fb9a401d9605d8bb2c5; f21293549f60f88c74fcb9944737f11048896dc4 преди a2f5286ca4f304d3fd469f01b96b518608912a5c
    • Linux Linux: 2.6.32; преди 2.6.32; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; от 7.2 нататък

    История

    • 24 септември 2026 Публикувано

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    CVE-2026-93784: Linux | freedomonline.bg