# CVE-2026-93246: linux: In the Linux kernel, the following vulnerability has been resolved:  octeontx2-af: fix out-of-bounds read setting MSI...

CVE-2026-93246 is fixed in linux on 1 platform by DEBIAN-CVE-2026-93246 (version 7.2.6-1), released September 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-93246
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 24, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  octeontx2-af: fix out-of-bounds read setting MSI-X irq affinity  rvu_register_interrupts() walks every MSI-X vector and uses strstr() to match "Mbox" or "FLR" in irq_name before pinning those interrupts to CPU 0. irq_name is a per-vector NAME_SIZE buffer, but not every slot is populated before this loop runs. strstr() keeps scanning until it finds a NUL terminator, so an uninitialized slot can trigger a KASAN slab-out-of-bounds read at boot when debug options are enabled.  Use strnstr() with NAME_SIZE to bound the search within each vector's name buffer.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-93246](https://patchblox.com/security/data/fix/linux/debian-cve-2026-93246.md) | Sep 24, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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