SB2025072725 - Out-of-bounds read in Linux kernel ethernet microchip driver
Published: July 27, 2025
Security Bulletin ID
SB2025072725
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2025-38422)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the lan743x_hs_otp_read(), lan743x_hs_otp_write(), lan743x_hs_eeprom_read(), lan743x_hs_eeprom_write() and lan743x_ethtool_get_eeprom_len() functions in drivers/net/ethernet/microchip/lan743x_ethtool.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/088279ff18cdc437d6fac5890e0c52c624f78a5b
- https://git.kernel.org/stable/c/3b9935586a9b54d2da27901b830d3cf46ad66a1e
- https://git.kernel.org/stable/c/51318d644c993b3f7a60b8616a6a5adc1e967cd2
- https://git.kernel.org/stable/c/6b4201d74d0a49af2123abf2c9d142e59566714b
- https://git.kernel.org/stable/c/9c41d2a2aa3817946eb613522200cab55513ddaa