CVE-2025-71234

Advisory lineage Upstream: 0 Downstream: 13
Analyzed
Published: 18 Feb 2026, 14:53
Last modified:11 May 2026, 21:56

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Feb 2026, 14:53
Published
Vulnerability first disclosed
11 May 2026, 21:56
Last Modified
Vulnerability information updated

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 Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 5%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • linux•linux

    ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5d810ba377eddee95d30766d360a14efbb3d1872 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 116f7bd8160c6b37d1c6939385abf90f6f6ed2f5 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf | ≥ eef55f1545c92c7181d5083453dee1296298ad3e, < 5d810ba377eddee95d30766d360a14efbb3d1872 | ≥ eef55f1545c92c7181d5083453dee1296298ad3e, < 116f7bd8160c6b37d1c6939385abf90f6f6ed2f5 | ≥ eef55f1545c92c7181d5083453dee1296298ad3e, < 9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf | ≥ eef55f1545c92c7181d5083453dee1296298ad3e, < 86c946bcc00f6390ef65e9614ae60a9377e454f8 | 6.9

  • linux•linux_kernel

    ≥ 6.9, < 6.12.72 | ≥ 6.13, < 6.18.11 | ≥ 6.19, < 6.19.1

References (4)