SB20240531178 - Use-after-free in Linux kernel spi driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531178
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2021-47048)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the zynqmp_qspi_exec_op() function in drivers/spi/spi-zynqmp-gqspi.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1231279389b5e638bc3b66b9741c94077aed4b5a
- https://git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62
- https://git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c
- https://git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.37
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13