Vulnerability Details 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 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 5.5%
CVSS Severity
CVSS v3 Score 7.1
References
- https://git.kernel.org/stable/c/22042ffedd8c2c6db08ccdd6d4273068eddd3c5c
- https://git.kernel.org/stable/c/24ef2f53c07f273bad99173e27ee88d44d135b1c
- https://git.kernel.org/stable/c/523eab02fce458fa6d3c51de5bb055800986953e
- https://git.kernel.org/stable/c/748da80831221ae24b4bc8d7ffb22acd5712a341
- https://git.kernel.org/stable/c/8f141f2a4f2ef8ca865d5921574c3d6535e00a49
- https://git.kernel.org/stable/c/fcb4ce9f729c1d08e53abf9d449340e24c3edee6
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Products affected by CVE-2025-38736
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cpe:2.3:o:debian:debian_linux:11.0
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cpe:2.3:o:linux:linux_kernel:6.12.43
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cpe:2.3:o:linux:linux_kernel:6.15.11
-
cpe:2.3:o:linux:linux_kernel:6.16.2
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cpe:2.3:o:linux:linux_kernel:6.16.3
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cpe:2.3:o:linux:linux_kernel:6.17