CVE-2026-23422

Description

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.

References

• 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