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Review reviewHigh

CVE-2024-38569

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: drivers/perf: hisi_pcie: Fix out-of-bound access when valid event group The perf tool allows users to create event groups through following cmd [1], but the driver does not check whether the array index is out of bounds when writing data to the event_group array. If the number of events in an event_group is greater than HISI_PCIE_MAX_COUNTERS, the memory write overflow of event_group array occurs. Add array index check to fix the possible array out of bounds violation, and return directly when write new events are written t...

CVSS
7.8
EPSS
0.23%
14.3% percentile
CISA KEV
Not listed
Published
2024.06.19
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.23%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: drivers/perf: hisi_pcie: Fix out-of-bound access when valid event group The perf tool allows users to create event groups through following cmd [1], but the driver does not check whether the array index is out of bounds when writing data to the event_group array. If the number of events in an event_group is greater than HISI_PCIE_MAX_COUNTERS, the memory write overflow of event_group array occurs. Add array index check to fix the possible array out of bounds violation, and return directly when write new events are written t...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 8404b0fbc7fbd42e5c5d28cdedd450e70829c77a < 3d1face00ebb7996842aee4214d7d0fb0c77b1e9, >= 8404b0fbc7fbd42e5c5d28cdedd450e70829c77a < 8e9aab2492178f25372f1820bfd9289fbd74efd0, >= 8404b0fbc7fbd42e5c5d28cdedd450e70829c77a < 567d34626c22b36579ec0abfdf5eda2949044220, >= 8404b0fbc7fbd42e5c5d28cdedd450e70829c77a < ff48247144d13a3a0817127703724256008efa78, >= 8404b0fbc7fbd42e5c5d28cdedd450e70829c77a < 77fce82678ea5fd51442e62febec2004f79e041b, >= 5.17, >= 5.17 < 6.1.93, >= 6.2 < 6.6.33, >= 6.7 < 6.8.12, >= 6.9 < 6.9.3
Fixed versions
6.1.93, 6.6.33, 6.8.12, 6.9.3

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-129
CVE-2024-38569 — Linux Linux, linux kernel | SECUFOCUS NOW