CVE-2025-71234
published 2026-02-18CVE-2025-71234: 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…
PriorityP341high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.12%
2.2th percentile
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.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.18.12-1 (forky) | linux 6.18.12-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= eef55f1545c92c7181d5083453dee1296298ad3e < 5d810ba377eddee95d30766d360a14efbb3d1872 | 5d810ba377eddee95d30766d360a14efbb3d1872 |
| linux | linux | >= eef55f1545c92c7181d5083453dee1296298ad3e < 116f7bd8160c6b37d1c6939385abf90f6f6ed2f5 | 116f7bd8160c6b37d1c6939385abf90f6f6ed2f5 |
| linux | linux | >= eef55f1545c92c7181d5083453dee1296298ad3e < 9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf | 9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf |
| linux | linux | >= eef55f1545c92c7181d5083453dee1296298ad3e < 86c946bcc00f6390ef65e9614ae60a9377e454f8 | 86c946bcc00f6390ef65e9614ae60a9377e454f8 |
| linux | linux_kernel | >= 0 < 6.12.73-1 | 6.12.73-1 |
| linux | linux_kernel | >= 0 < 6.18.12-1 | 6.18.12-1 |
| linux | linux_kernel | >= 6.13 < 6.18.11 | 6.18.11 |
| linux | linux_kernel | >= 6.19 < 6.19.1 | 6.19.1 |
| linux | linux_kernel | >= 6.9 < 6.12.72 | 6.12.72 |
| msrc | azl3_kernel_6.6.121.1-1_on_azure_linux_3.0 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8LOW
vendor_msrc7.8HIGH
vendor_redhat7.8HIGH
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Red Hat
kernel: wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add
vendor_redhat·2026-02-18·CVSS 7.8
CVE-2025-71234 [HIGH] CWE-476 kernel: wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add
kernel: wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add
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 en
Microsoft
wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add
vendor_msrc·2026-02-10·CVSS 7.8
CVE-2025-71234 [HIGH] wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add
wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Debian
CVE-2025-71234: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: rtl8x...
vendor_debian·2025·CVSS 7.8
CVE-2025-71234 [HIGH] CVE-2025-71234: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: rtl8x...
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-stati
OSV
CVE-2025-71234: 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
osv·2026-02-18·CVSS 7.8
CVE-2025-71234 [HIGH] CVE-2025-71234: 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
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-stati
GHSA
GHSA-365g-rr2h-rx65: 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 s
ghsa_unreviewed·2026-02-18
CVE-2025-71234 [HIGH] CWE-787 GHSA-365g-rr2h-rx65: 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 s
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-
No detection rules found.
No public exploits indexed.
Wiz
CVE-2025-71234 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 7.8
CVE-2025-71234 [HIGH] CVE-2025-71234 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2025-71234 :
Linux Kernel vulnerability analysis and mitigation
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 configure
Bugzilla
CVE-2025-71234 kernel: wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add
bugzilla·2026-02-18·CVSS 7.8
CVE-2025-71234 [HIGH] CVE-2025-71234 kernel: wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add
CVE-2025-71234 kernel: wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add
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
2026-02-18
Published