Use-after-free vulnerability in spi-zynqmp-gqspi package
Summary
GSD-2021-1000377: spi: spi-zynqmp-gqspi: fix use-after-free in zynqmp_qspi_exec_op. Affects Kernel versions >= 1c26372e5aa9e53391a1f8fe0dc7cd93a7e5ba9e, < 1231279389b5e638bc3b66b9741c94077aed4b5a. No fix is published. How to fix ↓
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Background
The spi-zynqmp-gqspi package is a component of the Linux Kernel that provides support for the General Purpose SPI controller found in Xilinx Zynq UltraScale+ MPSoC devices. It allows communication with SPI devices connected to the Zynq MPSoC's Quad SPI (QSPI) interface. The package is responsible for executing SPI operations and managing the QSPI controller's functionality.
Vulnerability Detail
The use-after-free vulnerability in the spi-zynqmp-gqspi package, identified as GSD-2021-1000377, arises from a programming error in the zynqmp_qspi_exec_op function. This vulnerability can be exploited by an attacker to execute arbitrary code or cause a denial-of-service condition. The vulnerability was introduced in version v5.10 of the Linux Kernel and was fixed in version v5.10.37. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The use-after-free vulnerability in the spi-zynqmp-gqspi package can be mitigated by updating the Linux Kernel to version v5.10.37 or later. This update includes the necessary fix to address the vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The spi-zynqmp-gqspi package is a component of the Linux Kernel that provides support for the General Purpose SPI controller found in Xilinx Zynq UltraScale+ MPSoC devices. It allows communication with SPI devices connected to the Zynq MPSoC's Quad SPI (QSPI) interface.
A use-after-free vulnerability occurs when a program continues to use a memory region after it has been freed. This can lead to various security issues, including the execution of arbitrary code or a denial-of-service condition.
The use-after-free vulnerability in spi-zynqmp-gqspi can be exploited by an attacker to execute arbitrary code or cause a denial-of-service condition. However, the impact and attack plausibility of this vulnerability have not been proven yet.
The use-after-free vulnerability in spi-zynqmp-gqspi was introduced in version v5.10 of the Linux Kernel. It has been fixed in version v5.10.37 and later.
Users can obtain the fixed version of the Linux Kernel (v5.10.37 or later) from the official Linux Kernel repository: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
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