Bug 2323920 (CVE-2024-50131)

Summary: CVE-2024-50131 kernel: tracing: Consider the NULL character when validating the event length
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Bug Depends On: 2324039    
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Description OSIDB Bzimport 2024-11-05 18:02:16 UTC 
In the Linux kernel, the following vulnerability has been resolved:

tracing: Consider the NULL character when validating the event length

strlen() returns a string length excluding the null byte. If the string
length equals to the maximum buffer length, the buffer will have no
space for the NULL terminating character.

This commit checks this condition and returns failure for it.
Comment 1 Robb Gatica 2024-11-05 21:22:02 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024110558-CVE-2024-50131-0e78@gregkh/T