Off-by-one Error Affecting perf package, versions *


Severity

Recommended
0.0
low
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.03% (10th percentile)

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  • Snyk IDSNYK-CENTOS7-PERF-15721605
  • published21 Mar 2026
  • disclosed18 Mar 2026

Introduced: 18 Mar 2026

NewCVE-2026-23256  (opens in a new tab)
CWE-193  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 perf.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

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

net: liquidio: Fix off-by-one error in VF setup_nic_devices() cleanup

In setup_nic_devices(), the initialization loop jumps to the label setup_nic_dev_free on failure. The current cleanup loop while(i--) skip the failing index i, causing a memory leak.

Fix this by changing the loop to iterate from the current index i down to 0.

Compile tested only. Issue found using code review.

CVSS Base Scores

version 3.1