SB2025100562 - Buffer overflow in Linux kernel ext2
Published: October 5, 2025 Updated: October 27, 2025
Security Bulletin ID
SB2025100562
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) Buffer overflow (CVE-ID: CVE-2023-53569)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the ext2_fill_super() function in fs/ext2/super.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/0ebfaf14150f55550cffb1148ed3920143c7a69c
- https://git.kernel.org/stable/c/22ab5fed07ad4b206ea910fd0132d1a0d4831584
- https://git.kernel.org/stable/c/451b98155be5dfee05bc6e7c8b30c0be4add3f71
- https://git.kernel.org/stable/c/62aeb94433fcec80241754b70d0d1836d5926b0a
- https://git.kernel.org/stable/c/99f8a15af6c9f0653193104a9e70891f950c6001
- https://git.kernel.org/stable/c/c2e7776843a953fd7e48895c3880c277f996193e
- https://git.kernel.org/stable/c/c4813f858e5c3e4c4659ce95385c1c400c593e1e
- https://git.kernel.org/stable/c/e6f4fb28890c1361e0db9eb1adee3fc04e7fe7f5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.30