SB2025091883 - Input validation error in Linux kernel block
Published: September 18, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091883
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) Input validation error (CVE-ID: CVE-2023-53366)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the EXPORT_SYMBOL() and iocb_bio_iopoll() functions in block/blk-core.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/0510d5e654d05053ed0e6309a9b42043ac9903ab
- https://git.kernel.org/stable/c/1af0bdca03f367874da45d6cbe05fa05b90b1439
- https://git.kernel.org/stable/c/310726c33ad76cebdee312dbfafc12c1b44bf977
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3