CVE-2023-53332
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-16

Last updated on: 2025-12-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask() If ipi_send_{mask|single}() is called with an invalid interrupt number, all the local variables there will be NULL. ipi_send_verify() which is invoked from these functions does verify its 'data' parameter, resulting in a kernel oops in irq_data_get_affinity_mask() as the passed NULL pointer gets dereferenced. Add a missing NULL pointer check in ipi_send_verify()... Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.
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Meta Information
Published
2025-09-16
Last Modified
2025-12-10
Generated
2026-05-07
AI Q&A
2025-09-16
EPSS Evaluated
2026-05-05
NVD
CVE-2023-53332
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 4.6 (inc) to 6.1.18 (exc)
linux linux_kernel From 6.2 (inc) to 6.2.5 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a NULL pointer dereference in the Linux kernel's genirq subsystem, specifically in the irq_data_get_affinity_mask() function. When certain functions (ipi_send_mask or ipi_send_single) are called with an invalid interrupt number, local variables become NULL. Although ipi_send_verify() checks its 'data' parameter, it misses a NULL pointer check, leading to a kernel oops (crash) when the NULL pointer is dereferenced.


How can this vulnerability impact me? :

This vulnerability can cause the Linux kernel to crash (kernel oops) when invalid interrupt numbers are used in specific inter-processor interrupt functions. This can lead to system instability or denial of service.


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