CVE-2025-71234

HIGH EPSS 2.2%
Published Feb 18, 20264mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 18, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
2.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥6.9  –  <6.12.72
linuxlinux_kernel*≥6.13  –  <6.18.11
linuxlinux_kernel*≥6.19  –  <6.19.1

References 4

  • git.kernel.org https://git.kernel.org/stable/c/116f7bd8160c6b37d1c6939385abf90f6f6ed2f5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d810ba377eddee95d30766d360a14efbb3d1872
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/86c946bcc00f6390ef65e9614ae60a9377e454f8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/116f7bd8160c6b37d1c6939385abf90f6f6ed2f5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d810ba377eddee95d30766d360a14efbb3d1872
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/86c946bcc00f6390ef65e9614ae60a9377e454f8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf
    Patch