#VU124949 Out-of-bounds read in Linux kernel - CVE-2026-23422
Published: April 6, 2026
Vulnerability identifier: #VU124949
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-23422
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to an out-of-bounds access in the dpaa2-switch IRQ handler when handling a bad if_id value. A local attacker can trigger an out-of-bounds if_id condition to cause a denial of service.
If an out-of-bounds if_id is detected, the interrupt status is not cleared, which may result in an interrupt storm.
Remediation
Install security update from vendor's repository.
External links
- https://git.kernel.org/stable/c/00f42ace446f1e4bf84988f2281131f52cd32796
- https://git.kernel.org/stable/c/28fd8ac1d49389cb230d712116f54e27ebec11b8
- https://git.kernel.org/stable/c/74badb9c20b1a9c02a95c735c6d3cd6121679c93
- https://git.kernel.org/stable/c/b5bababe7703a7322bc59b803ab1587887a2a5e4
- https://git.kernel.org/stable/c/c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0e
- https://git.kernel.org/stable/c/fa4412cdc5178a48799bafcb8af28fd2fbf3d703