SB2025090849 - Out-of-bounds read in Linux kernel i2c busses driver
Published: September 8, 2025
Security Bulletin ID
SB2025090849
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-2025-39680)
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 rtl9300_i2c_smbus_xfer() function in drivers/i2c/busses/i2c-rtl9300.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.