CVE-2026-72050
Received Received - Intake

BaseFortify

Publication date: 2026-08-15

Last updated on: 2026-08-15

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Free BPID bitmap on setup failure nix_setup_bpids() allocates bp->bpids with rvu_alloc_bitmap(), which uses a plain kcalloc(). If any of the following devm_kcalloc() allocations for the BPID mapping arrays fails, the function returns without freeing the bitmap. Free the BPID bitmap before returning from those error paths.

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Meta Information

Published
2026-08-15
Last Modified
2026-08-15
Generated
2026-08-15
AI Q&A
2026-08-15
EPSS Evaluated
N/A
NVD
CVE-2026-72050
EUVD
EUVD-2026-59008

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel involves a memory leak in the octeontx2-af driver. When setting up BPIDs, a bitmap is allocated but not freed if subsequent allocations fail. This occurs because nix_setup_bpids() uses kcalloc() for the bitmap but does not release it in error paths.

Detection Guidance

This vulnerability is specific to the Linux kernel's octeontx2-af driver and may not have direct detection commands. Monitor kernel logs for errors related to BPID bitmap allocation failures in the octeontx2-af driver. Check for crashes or unexpected behavior in network interfaces using this driver.

Impact Analysis

This vulnerability could lead to memory leaks, potentially causing system instability or resource exhaustion over time. It may affect systems using the octeontx2-af driver, particularly in high-load scenarios where repeated setup failures occur.

Mitigation Strategies

Apply the latest kernel patches or updates that include the fix for this vulnerability. If using a vulnerable kernel version, consider disabling the octeontx2-af driver if not required. Monitor vendor advisories for updates and test patches in a non-production environment before deployment.

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