Bug 2327377 (CVE-2024-53043)

Summary: CVE-2024-53043 kernel: mctp i2c: handle NULL header address
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Bug Depends On: 2327444    
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Description OSIDB Bzimport 2024-11-19 18:03:59 UTC 
In the Linux kernel, the following vulnerability has been resolved:

mctp i2c: handle NULL header address

daddr can be NULL if there is no neighbour table entry present,
in that case the tx packet should be dropped.

saddr will usually be set by MCTP core, but check for NULL in case a
packet is transmitted by a different protocol.
Comment 1 Robb Gatica 2024-11-19 20:51:05 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024111925-CVE-2024-53043-f450@gregkh/T