CVE-2026-23422

dpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler

CVE-2026-23422 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-23422, released April 3, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0013
2nd percentile

In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler Commit 31a7a0bbeb00 ("dpaa2-switch: add bounds check for if_id in IRQ handler") introduces a range check for if_id to avoid an out-of-bounds access. If an out-of-bounds if_id is detected, the interrupt status is not cleared. This may result in an interrupt storm. Clear the interrupt status after detecting an out-of-bounds if_id to avoid the problem. Found by an experimental AI code review agent at Google.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 12.15 (bookworm) 6.1.170-1 DEBIAN-CVE-2026-23422 Apr 3, 2026
linux · Debian 13.5 (trixie) 6.12.85-1 DEBIAN-CVE-2026-23422 Apr 3, 2026
linux · Debian 14 6.19.8-1 DEBIAN-CVE-2026-23422 Apr 3, 2026

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