SB2025102143 - Improper locking in Linux kernel spi driver
Published: October 21, 2025
Security Bulletin ID
SB2025102143
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) Improper locking (CVE-ID: CVE-2025-40005)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the cqspi_indirect_read_execute(), cqspi_indirect_write_execute(), cqspi_exec_mem_op(), cqspi_probe() and cqspi_remove() functions in drivers/spi/spi-cadence-quadspi.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.