CVE-2026-23070

MEDIUM

Linux Kernel 6.9-6.19 - Denial of Service via Octeontx2-af Firmware Data Access

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: Octeontx2-af: Add proper checks for fwdata firmware populates MAC address, link modes (supported, advertised) and EEPROM data in shared firmware structure which kernel access via MAC block(CGX/RPM). Accessing fwdata, on boards booted with out MAC block leading to kernel panics. Internal error: Oops: 0000000096000005 [#1] SMP [ 10.460721] Modules linked in: [ 10.463779] CPU: 0 UID: 0 PID: 174 Comm: kworker/0:3 Not tainted 6.19.0-rc5-00154-g76ec646abdf7-dirty #3 PREEMPT [ 10.474045] Hardware name: Marvell OcteonTX CN98XX board (DT) [ 10.479793] Workqueue: events work_for_cpu_fn [ 10.484159] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 10.491124] pc : rvu_sdp_init+0x18/0x114 [ 10.495051] lr : rvu_probe+0xe58/0x1d18

Scores

CVSS v3 5.5
EPSS 0.0002
EPSS Percentile 6.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (11)
linux/Kernel 6.9.0 - 6.18.8linux
Linux/Linux < 6.9
Linux/Linux 6.12.78 - 6.12.*
Linux/Linux 6.18.8 - 6.18.*
Linux/Linux 6.19
Linux/Linux 6.9
Linux/Linux 997814491cee7b19c162ad82439818e555f99ad9 - 079050a23de6b7505595e4af75b36c34f0e9627e
Linux/Linux 997814491cee7b19c162ad82439818e555f99ad9 - 4a3dba48188208e4f66822800e042686784d29d1
Linux/Linux 997814491cee7b19c162ad82439818e555f99ad9 - e343973fab43c266a40e4e0dabdc4216db6d5eff
linux/linux_kernel 6.19 rc1 (6 CPE variants)
... and 1 more
Published Feb 04, 2026
Tracked Since Feb 18, 2026