SB2025102338 - Out-of-bounds read in Linux kernel arm64 lib
Published: October 23, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025102338
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-2023-53726)
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 do_csum() function in arch/arm64/lib/csum.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/5a85727239a23de1cc8d93985f1056308128f3e2
- https://git.kernel.org/stable/c/8bd795fedb8450ecbef18eeadbd23ed8fc7630f5
- https://git.kernel.org/stable/c/9a43563cfd6b9200ff2f76b3f9fcdcb217ceb523
- https://git.kernel.org/stable/c/a5ad2f87d8e74e351d3f500ad9d5b3a5653e1c6f
- https://git.kernel.org/stable/c/ba0b46166b8e547024d02345a68b747841931ad2
- https://git.kernel.org/stable/c/fcdf904e866de0e3715835e50409fda3b2590527
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.3