CVE-2026-93246

Unknown

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.

SeverityUnknown
CVSS—
Exploit probability—
ProductLinux
PublishedSep 24, 2026
First seenSep 24, 2026

How to fix

Update
  • Linux Linux2f460aa0211e97c011ef0cfe5016f8f2a2ed059b, 4d5df98369c5f45710b786499f8bd7ffc3196433 or later

Affected products

ProductAffected versionsFixed in
Linux Linux4e527f1e5c155ce28164ba34cad47b635d16f827 ≤ v < 2f460aa0211e97c011ef0cfe5016f8f2a2ed059b, 4e527f1e5c155ce28164ba34cad47b635d16f827 ≤ v < 4d5df98369c5f45710b786499f8bd7ffc3196433, 7.12f460aa0211e97c011ef0cfe5016f8f2a2ed059b, 4d5df98369c5f45710b786499f8bd7ffc3196433

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.