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CVE-2026-64446: Linux

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CVSS

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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: staging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set_wpa_ie() supplicant_ie is a 256-byte array in struct security_priv. The WPA and WPA2 IE copy paths use: memcpy(padapter->securitypriv.supplicant_ie, &pwpa[0], wpa_ielen + 2); where wpa_ielen is the raw IE length field (u8, 0-255). When a local user supplies a connect request via nl80211 with a crafted WPA IE of length 255, wpa_ielen + 2 equals 257, overflowing the 256-byte buffer by one byte into the adjacent last_mic_err_time field. rtw_parse_wpa_ie() does not prevent this: its length consistency check compares *(wpa_ie+1) against (u8)(wpa_ie_len-2), which is (u8)(255) == 255 when wpa_ie_len = 257, so the check passes silently. Add explicit bounds checks for both the WPA and WPA2 paths before the memcpy, rejecting any IE whose total size (wpa_ielen + 2) exceeds the supplicant_ie buffer.

    Засегнати продукти

    • Linux Linux: 554c0a3abf216c991c5ebddcdb2c08689ecd290b преди a94a643a80a84ceb8139061c3d6bf988d75e45a5; 554c0a3abf216c991c5ebddcdb2c08689ecd290b преди 2131621986c62c86109ce4d84cf73a73757eb8a6; 554c0a3abf216c991c5ebddcdb2c08689ecd290b преди 6f20d7b0ee47c470734a69379b0fc6647c519603; 554c0a3abf216c991c5ebddcdb2c08689ecd290b преди 5d7812360abf3143afcbf5efe4ef242448fa1f28; 554c0a3abf216c991c5ebddcdb2c08689ecd290b преди 46f66c16a95191d9aca07a72ae6b1252a244e26c; 554c0a3abf216c991c5ebddcdb2c08689ecd290b преди b9c4bf133c3c47e23baf4f5403b98a953bf58606; 554c0a3abf216c991c5ebddcdb2c08689ecd290b преди 138cd190efd56ab36c9fdd8fef8749d06937f24b; 554c0a3abf216c991c5ebddcdb2c08689ecd290b преди 5a752a616e756844388a1a45404db9fc29fec655
    • Linux Linux: 4.12; преди 4.12; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.96 до 6.12.*; 6.18.39 до 6.18.*; 7.1.4 до 7.1.*; от 7.2 нататък

    История

    • 25 юли 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-64446: Linux | freedomonline.bg