Description
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.
Published: 2026-05-27
Score: n/a
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability exists in the remoteproc driver for Xilinx SoCs, where a receive callback accessed buffer information without first confirming that the incoming message was non‑NULL. This unchecked dereference can trigger a kernel panic, effectively causing a denial‑of‑service condition. The weakness is a classic null‑pointer dereference, classified as CWE‑476.

Affected Systems

All Linux kernel releases that contain the remoteproc/xlnx driver without the patch are affected. No specific version range is listed, so any kernel version prior to the application of the fix should be considered vulnerable.

Risk and Exploitability

The issue has not been demonstrated in public exploits and is not listed in CISA’s KEV catalog. Exploitation would require an attacker to send a crafted IPI message that results in a NULL pointer dereference, leading to a crash. While no elevation of privilege or remote code execution is implied, the potential for a kernel panic provides a moderate risk, especially in environments where IPI traffic can be manipulated. No EPSS score is available, so the likelihood of exploitation cannot be quantified precisely.

Generated by OpenCVE AI on May 27, 2026 at 18:34 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update the kernel to a version that contains the null‑pointer check in remoteproc/xlnx (see the commits referenced in the advisory).
  • If an upgrade is not immediately possible, manually apply the patch that adds the NULL check to the receive callback, using the patch files linked in the advisory.
  • If the Xilinx remoteproc IPI functionality is not required, disable or restrict its use to reduce the attack surface.

Generated by OpenCVE AI on May 27, 2026 at 18:34 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 27 May 2026 19:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476

Wed, 27 May 2026 14:15:00 +0000

Type Values Removed Values Added
Description 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.
Title remoteproc: xlnx: Only access buffer information if IPI is buffered
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-27T12:56:17.970Z

Reserved: 2026-05-13T15:03:33.092Z

Link: CVE-2026-46016

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-27T14:17:20.010

Modified: 2026-05-27T14:48:03.013

Link: CVE-2026-46016

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-27T18:45:39Z

Weaknesses