clk: qcom: ipq8074: fix PCI-E clock oops in Kernel
Summary
GSD-2022-1001817: clk: qcom: ipq8074: fix PCI-E clock oops. Affects Kernel versions >= f0cfcf1ade201dcfd3365f231efc90e846fa46df, < 41e360fa73a4c2f5b78f5ded78a5375b08c206a5. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that manages the system's resources and facilitates communication between hardware and software. It provides essential services such as process management, memory management, and device drivers. The clk subsystem within the Kernel is responsible for managing clocks and their frequencies on various hardware platforms. The qcom (Qualcomm) ipq8074 is a System-on-Chip (SoC) commonly used in networking devices. It includes support for PCI-Express (PCI-E) connectivity, which allows for high-speed data transfer between the SoC and peripheral devices. However, a vulnerability has been discovered in the ipq8074 clk driver that can lead to a kernel oops (crash) when handling PCI-E clocks.
Vulnerability Detail
The vulnerability in the qcom ipq8074 clk driver affects the handling of PCI-E clocks. When certain operations involving PCI-E clocks are performed, it can trigger a kernel oops, resulting in a system crash. An attacker with local access to the affected system could potentially exploit this vulnerability to cause a denial-of-service (DoS) condition. The vulnerability was introduced in Linux Kernel version v5.9 by commit f0cfcf1ade201dcfd3365f231efc90e846fa46df and is fixed in version v5.15.33 by commit 41e360fa73a4c2f5b78f5ded78a5375b08c206a5.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is recommended to apply the fix by updating the Linux Kernel as mentioned in the 'how_to_fix' section.
Conclusion
The vulnerability in the qcom ipq8074 clk driver can lead to a kernel oops and system crash when handling PCI-E clocks. It is recommended to update the Linux Kernel to version v5.15.33 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a kernel oops and system crash, potentially causing a denial-of-service (DoS) condition.
Users running Linux systems with the qcom ipq8074 SoC and the affected versions of the Linux Kernel are affected by this vulnerability.
No, this vulnerability requires local access to the affected system to be exploited.
There are no known instances of this vulnerability being exploited in the wild at the time of this report.
Yes, a patch for this vulnerability is available in Linux Kernel version v5.15.33.
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