SB2025100507 - NULL pointer dereference in Linux kernel scsi qla2xxx driver
Published: October 5, 2025 Updated: October 27, 2025
Security Bulletin ID
SB2025100507
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) NULL pointer dereference (CVE-ID: CVE-2023-53603)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the qla24xx_issue_sa_replace_iocb() function in drivers/scsi/qla2xxx/qla_edif.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/4406fe8a96a946c7ea5724ee59625755a1d9c59d
- https://git.kernel.org/stable/c/477bc74ad1add644b606bff6ba1284943c42818a
- https://git.kernel.org/stable/c/6b504d06976fe4a61cc05dedc68b84fadb397f77
- https://git.kernel.org/stable/c/7bbeff613ec0560fb2f6f8b405288f3f043adf64
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.5