In the Linux kernel, the following vulnerability has been resolved:
wifi: wilc1000: avoid buffer overflow in WID string configuration
Fix the following copy overflow warning identified by Smatch checker.
drivers/net/wireless/microchip/wilc1000/wlan_cfg.c:184 wilc_wlan_parse_response_frame()
error: '__memcpy()' 'cfg->s[i]->str' copy overflow (512 vs 65537)
This patch introduces size check before accessing the memory buffer.
The checks are base on the WID type of received data from the firmware.
For WID string configuration, the size limit is determined by individual
element size in 'struct wilc_cfg_str_vals' that is maintained in 'len' field
of 'struct wilc_cfg_str'.
References
Configurations
Configuration 1 (hide)
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History
23 Jan 2026, 20:02
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/2203ef417044b10a8563ade6a17c74183745d72e - Patch | |
| References | () https://git.kernel.org/stable/c/6085291a1a5865d4ad70f0e5812d524ebd5d1711 - Patch | |
| References | () https://git.kernel.org/stable/c/ae50f8562306a7ea1cf3c9722f97ee244f974729 - Patch | |
| References | () https://git.kernel.org/stable/c/fe9e4d0c39311d0f97b024147a0d155333f388b5 - Patch | |
| CPE | cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| First Time |
Linux
Linux linux Kernel |
|
| CWE | CWE-787 |
04 Oct 2025, 08:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-10-04 08:15
Updated : 2026-01-23 20:02
NVD link : CVE-2025-39952
Mitre link : CVE-2025-39952
CVE.ORG link : CVE-2025-39952
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-787
Out-of-bounds Write