CVE-2025-71234

Description

In the Linux kernel, the following vulnerability has been resolved:wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_addThe driver does not set hw->sta_data_size, which causes mac80211 toallocate insufficient space for driver private station data in__sta_info_alloc(). When rtl8xxxu_sta_add() accesses members ofstruct rtl8xxxu_sta_info through sta->drv_priv, this results in aslab-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/u16:0/12Set hw->sta_data_size to sizeof(struct rtl8xxxu_sta_info) duringprobe, similar to how hw->vif_data_size is configured. This ensuresmac80211 allocates sufficient space for the drivers per-stationprivate data.Tested on StarFive VisionFive 2 v1.2A board.

Risk Information

Base Score

7.8

MODERATE

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score

Exploitation Probability

0.015

Associated Vulnerability

No records found

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234