🛡️ AZL-59261 — kernel

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

Description

CVE-2024-27437 affecting package kernel for versions less than 5.15.176.3-3

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

vfio/pci: Disable auto-enable of exclusive INTx IRQ

Currently for devices requiring masking at the irqchip for INTx, ie.

devices without DisINTx support, the IRQ is enabled in request_irq()

and subsequently disabled as necessary to align with the masked status

flag. This presents a window where the interrupt could fire between

these events, resulting in the IRQ incrementing the disable depth twice.

This would be unrecoverable for a user since the masked flag prevents

nested enables through vfio.

Instead, invert the logic using IRQF_NO_AUTOEN such that exclusive INTx

is never auto-enabled, then unmask as required.

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-59261 is recorded against 1 package.

  • kernel (fixed in 5.15.176.3-3)

Timeline and source

Published on 5 April 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 2024-04-05
Updated 2026-08-12
Modified 2026-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel — 5.15.176.3-3

Similar Threats

Free Vulnerability Check

Is your site affected by AZL-59261?

BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against AZL-59261 and other known CVE records.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.