CVE-2022-50364
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-17

Last updated on: 2025-12-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: i2c: mux: reg: check return value after calling platform_get_resource() It will cause null-ptr-deref in resource_size(), if platform_get_resource() returns NULL, move calling resource_size() after devm_ioremap_resource() that will check 'res' to avoid null-ptr-deref. And use devm_platform_get_and_ioremap_resource() to simplify code.
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Meta Information
Published
2025-09-17
Last Modified
2025-12-10
Generated
2026-06-16
AI Q&A
2025-09-17
EPSS Evaluated
2026-06-15
NVD
CVE-2022-50364
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 4.3 (inc) to 5.10.163 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.86 (exc)
linux linux_kernel From 5.16 (inc) to 6.0.16 (exc)
linux linux_kernel From 6.1 (inc) to 6.1.2 (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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Executive Summary

This vulnerability occurs in the Linux kernel's i2c mux reg driver where the function platform_get_resource() may return NULL. If this happens, the subsequent call to resource_size() causes a null pointer dereference, leading to a potential crash or instability. The fix involves checking the return value of platform_get_resource() before calling resource_size(), moving the call after devm_ioremap_resource() which performs the necessary NULL check, and simplifying the code by using devm_platform_get_and_ioremap_resource().

Impact Analysis

This vulnerability can cause a null pointer dereference in the Linux kernel, which may lead to system crashes or instability. This can affect the reliability and availability of systems running the vulnerable kernel, potentially causing denial of service or unexpected behavior.

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