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Vulnerability DatabaseCVE-2023-53332
CVE-2023-53332:
Linux Kernel vulnerability analysis and mitigation
Overview
A vulnerability has been identified in the Linux kernel related to a NULL pointer dereference in the irq_data_get_affinity_mask() function. The issue was discovered by the Linux Verification Center using the SVACE static analysis tool. The vulnerability was assigned CVE-2023-53332 and was published on September 16, 2025 (NVD).
Technical details
The vulnerability occurs when ipi_send_{mask|single}() is called with an invalid interrupt number, causing all local variables to be NULL. While ipi_send_verify() function verifies its 'data' parameter, a missing NULL pointer check leads to a kernel oops when the NULL pointer is dereferenced in irq_data_get_affinity_mask() (NVD).
Impact
When exploited, this vulnerability can cause a kernel oops, potentially leading to system instability or denial of service conditions (NVD).
Mitigation and workarounds
The vulnerability has been resolved by adding a missing NULL pointer check in the ipi_send_verify() function (NVD).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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