CVE-2024-27038 Affecting kernel-rt-trace-devel package, versions *


Severity

low

    Threat Intelligence

    EPSS
    0.04% (13th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-6801068
  • published 2 May 2024
  • disclosed 1 May 2024

How to fix?

There is no fixed version for Centos:7 kernel-rt-trace-devel.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace-devel package and not the kernel-rt-trace-devel 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:

clk: Fix clk_core_get NULL dereference

It is possible for clk_core_get to dereference a NULL in the following sequence:

clk_core_get() of_clk_get_hw_from_clkspec() __of_clk_get_hw_from_provider() __clk_get_hw()

__clk_get_hw() can return NULL which is dereferenced by clk_core_get() at hw->core.

Prior to commit dde4eff47c82 ("clk: Look for parents with clkdev based clk_lookups") the check IS_ERR_OR_NULL() was performed which would have caught the NULL.

Reading the description of this function it talks about returning NULL but that cannot be so at the moment.

Update the function to check for hw before dereferencing it and return NULL if hw is NULL.

CVSS Scores

version 3.1
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Snyk

5.5 low
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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Red Hat

5.5 medium
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SUSE

5.5 medium