SB20240702104 - Buffer overflow in Linux kernel spi driver
Published: July 2, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240702104
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) Buffer overflow (CVE-ID: CVE-2021-47047)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the zynqmp_qspi_irq(), zynqmp_qspi_setuprxdma(), zynqmp_qspi_write_op(), zynqmp_qspi_exec_op() and zynqmp_qspi_probe() functions in drivers/spi/spi-zynqmp-gqspi.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/5980a3b9c933408bc22b0e349b78c3ebd7cbf880
- https://git.kernel.org/stable/c/c26c026eb496261dbc0adbf606cc81989cd2038c
- https://git.kernel.org/stable/c/bad5a23cf2b477fa78b85fd392736dae09a1e818
- https://git.kernel.org/stable/c/126bdb606fd2802454e6048caef1be3e25dd121e
- 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