CVE-2026-23312
Description
In the Linux kernel, the following vulnerability has been resolved:
net: usb: kaweth: validate USB endpoints
The kaweth driver should validate that the device it is probing has the proper number and types of USB endpoints it is expecting before it binds to it. If a malicious device were to not have the same urbs the driver will crash later on when it blindly accesses these endpoints.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
The Linux kernel's kaweth USB driver lacks endpoint validation, allowing a malicious USB device to cause a kernel crash by presenting unexpected endpoints.
Vulnerability
The kaweth driver in the Linux kernel fails to validate the number and types of USB endpoints on a device before binding to it. This missing validation can lead to a kernel crash when the driver blindly accesses endpoints that do not exist or are of an unexpected type [1].
Exploitation
An attacker with physical access or the ability to connect a malicious USB device can exploit this by presenting a device that lacks the expected endpoints. No authentication is required beyond USB connection. The driver will then attempt to access these endpoints, resulting in a NULL pointer dereference or similar fault that causes a kernel panic [1].
Impact
Successful exploitation results in a denial of service (system crash) due to the kernel panic. Based on the available information, the vulnerability does not appear to allow code execution or privilege escalation [1].
Mitigation
The fix has been applied to the Linux kernel stable tree via commits [1][2][3][4]. Users should update to a kernel version containing these patches. No workaround is mentioned in the advisory.
AI Insight generated on May 18, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
8- git.kernel.org/stable/c/0aae18e4638a7c1c579df92bc6edc36cedfaaa8cnvd
- git.kernel.org/stable/c/2795fc06e7652c0ba299d936c584d5e08b6b57a1nvd
- git.kernel.org/stable/c/3b5075e4ce97d1a1ce82ff3fb6308761987a48bbnvd
- git.kernel.org/stable/c/4b063c002ca759d1b299988ee23f564c9609c875nvd
- git.kernel.org/stable/c/6c986abd2a5033633c6e6f9dd135cf96b19c7fdfnvd
- git.kernel.org/stable/c/72f90f481c6a059680b9b976695d4cfb04fba1f3nvd
- git.kernel.org/stable/c/7c7ebf5e45d2504d92ea294ac3828d58586491dfnvd
- git.kernel.org/stable/c/f33e80d195a003b384620ee240f69092b519146bnvd
News mentions
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