CVE-2026-93246octeontx2-af: fix out-of-bounds read setting MSI-X irq affinity
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 4e527f1e5c155ce28164ba34cad47b635d16f827 builds before 2f460aa0211e97c011ef0cfe5016f8f2a2ed059b; 4e527f1e5c155ce28164ba34cad47b635d16f827 builds before 4d5df98369c5f45710b786499f8bd7ffc3196433 | CNA record |
References
- https://git.kernel.org/stable/c/2f460aa0211e97c011ef0cfe5016f8f2a2ed059b
- https://git.kernel.org/stable/c/4d5df98369c5f45710b786499f8bd7ffc3196433
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.