CVE-2025-71234 (GCVE-0-2025-71234)
Vulnerability from cvelistv5
Published
2026-02-18 14:53
Modified
2026-10-19 18:25
Severity ?
8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add The driver does not set hw->sta_data_size, which causes mac80211 to allocate insufficient space for driver private station data in __sta_info_alloc(). When rtl8xxxu_sta_add() accesses members of struct rtl8xxxu_sta_info through sta->drv_priv, this results in a slab-out-of-bounds write. KASAN report on RISC-V (VisionFive 2) with RTL8192EU adapter: BUG: KASAN: slab-out-of-bounds in rtl8xxxu_sta_add+0x31c/0x346 Write of size 8 at addr ffffffd6d3e9ae88 by task kworker/u16:0/12 Set hw->sta_data_size to sizeof(struct rtl8xxxu_sta_info) during probe, similar to how hw->vif_data_size is configured. This ensures mac80211 allocates sufficient space for the driver's per-station private data. Tested on StarFive VisionFive 2 v1.2A board.
References
Impacted products
Vendor Product Version
Linux Linux Version: eef55f1545c92c7181d5083453dee1296298ad3e
Version: eef55f1545c92c7181d5083453dee1296298ad3e
Version: eef55f1545c92c7181d5083453dee1296298ad3e
Version: eef55f1545c92c7181d5083453dee1296298ad3e
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