CVE-2025-38736: vulnerability in Linux
net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization
Published · Updated
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · LinuxRelated CVEs — Linux
In the same product, most dangerous first.
CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2025-39964HIGHcrypto: af_alg - Disallow concurrent writes in af_alg_sendmsgEPSS 1.4%KEV
References
https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-032379.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-457936.htmlhttps://git.kernel.org/stable/c/22042ffedd8c2c6db08ccdd6d4273068eddd3c5chttps://git.kernel.org/stable/c/24ef2f53c07f273bad99173e27ee88d44d135b1chttps://git.kernel.org/stable/c/523eab02fce458fa6d3c51de5bb055800986953ehttps://git.kernel.org/stable/c/748da80831221ae24b4bc8d7ffb22acd5712a341https://git.kernel.org/stable/c/8f141f2a4f2ef8ca865d5921574c3d6535e00a49https://git.kernel.org/stable/c/fcb4ce9f729c1d08e53abf9d449340e24c3edee6https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html