Bug 2481979 (CVE-2026-46016)

Summary: CVE-2026-46016 kernel: remoteproc: xlnx: Only access buffer information if IPI is buffered
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the Linux kernel's remoteproc xlnx component. This vulnerability occurs when the system attempts to process an Inter-Processor Interrupt (IPI) message without properly verifying its contents. An attacker could exploit this by causing the system to access an invalid memory location, leading to a system crash. This could result in a denial of service, making the system unavailable to legitimate users.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-05-27 15:05:21 UTC
In the Linux kernel, the following vulnerability has been resolved:

remoteproc: xlnx: Only access buffer information if IPI is buffered

In the receive callback check if message is NULL to prevent
possibility of crash by NULL pointer dereferencing.