CVE-2026-64446
CVE CVE-2026-64446EUVD EUVD-2026-48790Published 2026-07-25T08:51:17.000Z
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 554c0a3abf216c991c5ebddcdb2c08689ecd290b <5a752a616e756844388a1a45404db9fc29fec655; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <a94a643a80a84ceb8139061c3d6bf988d75e45a5; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <138cd190efd56ab36c9fdd8fef8749d06937f24b; patch: 5.15.212; patch: 6.18.39; patch: 6.12.96; patch: 6.6.145; patch: 5.10.261; 4.12; patch: 7.2-rc3; patch: 7.1.4; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <6f20d7b0ee47c470734a69379b0fc6647c519603; patch: 6.1.178; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <46f66c16a95191d9aca07a72ae6b1252a244e26c; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <b9c4bf133c3c47e23baf4f5403b98a953bf58606; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <5d7812360abf3143afcbf5efe4ef242448fa1f28; patch: 0; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <2131621986c62c86109ce4d84cf73a73757eb8a6
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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