🛡️ AZL-40337 — hyperv-daemons

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2024-27038 affecting package hyperv-daemons for versions less than 6.6.29.1-1

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.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

AZL-40337 is recorded against 1 package.

  • hyperv-daemons (fixed in 6.6.29.1-1)

Timeline and source

Published on 1 May 2024 and last revised on 21 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-05-01
Updated 2026-08-12
Modified 2026-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
hyperv-daemons — 6.6.29.1-1

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