CVE-2025-38736Out-of-bounds Read in Linux

CWE-125Out-of-bounds Read7 documents7 sources
Severity
7.1HIGHNVD
EPSS
0.0%
top 95.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedSep 5
Latest updateSep 9

Description

In the Linux kernel, the following vulnerability has been resolved: net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization Syzbot reported shift-out-of-bounds exception on MDIO bus initialization. The PHY address should be masked to 5 bits (0-31). Without this mask, invalid PHY addresses could be used, potentially causing issues with MDIO bus operations. Fix this by masking the PHY address with 0x1f (31 decimal) to ensure it stays within the valid range.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HExploitability: 1.8 | Impact: 5.2

Affected Packages3 packages

NVDlinux/linux_kernel6.15.116.16+3
Debianlinux/linux_kernel< 6.1.153-1+2
CVEListV5linux/linux75947d3200de98a9ded9ad8972e02f1a177097fefcb4ce9f729c1d08e53abf9d449340e24c3edee6+8

Also affects: Debian Linux 11.0

Patches

🔴Vulnerability Details

3
GHSA
GHSA-9pqv-7h63-32cr: In the Linux kernel, the following vulnerability has been resolved: net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization Syzbot r2025-09-05
CVEList
net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization2025-09-05
OSV
CVE-2025-38736: In the Linux kernel, the following vulnerability has been resolved: net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization Syzbot rep2025-09-05

📋Vendor Advisories

3
Microsoft
net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization2025-09-09
Red Hat
kernel: net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization2025-09-05
Debian
CVE-2025-38736: linux - In the Linux kernel, the following vulnerability has been resolved: net: usb: a...2025
CVE-2025-38736 — Out-of-bounds Read in Linux | cvebase