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Improper Validation of Specified Index, Position, or Offset in Input The advisory has been revoked - it doesn't affect any version of package perf  (opens in a new tab)

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EPSS
0.27% (19th percentile)

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  • Snyk IDSNYK-CENTOS6-PERF-16164258
  • published23 Apr 2026
  • disclosed22 Apr 2026
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Introduced: 22 Apr 2026

CVE-2026-31464  (opens in a new tab)
CWE-1285  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:6.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Centos.

In the Linux kernel, the following vulnerability has been resolved:

scsi: ibmvfc: Fix OOB access in ibmvfc_discover_targets_done()

A malicious or compromised VIO server can return a num_written value in the discover targets MAD response that exceeds max_targets. This value is stored directly in vhost->num_targets without validation, and is then used as the loop bound in ibmvfc_alloc_targets() to index into disc_buf[], which is only allocated for max_targets entries. Indices at or beyond max_targets access kernel memory outside the DMA-coherent allocation. The out-of-bounds data is subsequently embedded in Implicit Logout and PLOGI MADs that are sent back to the VIO server, leaking kernel memory.

Fix by clamping num_written to max_targets before storing it.