SB2025032754 - Infinite loop in Linux kernel firmware efi driver
Published: March 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025032754
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) Infinite loop (CVE-ID: CVE-2025-21872)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop within the efi_mokvar_table_init() function in drivers/firmware/efi/mokvar-table.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/2b90e7ace79774a3540ce569e000388f8d22c9e0
- https://git.kernel.org/stable/c/46c0454ffb78ce9d3355a3cccac86383ea8ddd55
- https://git.kernel.org/stable/c/65f4aebb8127708ba668dd938e83b8558abfc5cd
- https://git.kernel.org/stable/c/97bd560b6cc4c26386a53b4881bf03e96f9ba03a
- https://git.kernel.org/stable/c/ea3f0b362dfe4ef885ef812bfaf4088176422c91
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.83