Medium 5.5Published Feb 4, 2026

CVE-2026-23070Octeontx2-af: Add proper checks for fwdata

Updated under an hour ago (Oct 27, 2026, 4:30 PM ET)

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Exploited in the last 30 days

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

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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: Modified
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	997814491cee7b19c162ad82439818e555f99ad9 builds before 079050a23de6b7505595e4af75b36c34f0e9627e; from 997814491cee7b19c162ad82439818e555f99ad9 before e343973fab43c266a40e4e0dabdc4216db6d5eff; 997814491cee7b19c162ad82439818e555f99ad9 builds before 4a3dba48188208e4f66822800e042686784d29d1	CNA record
linux linux_kernel linux:linux_kernel	from 6.9 before 6.18.8; 6.19; 6.19; 6.19; 6.19; 6.19; 6.19	NVD

References

References

https://git.kernel.org/stable/c/079050a23de6b7505595e4af75b36c34f0e9627e
https://git.kernel.org/stable/c/e343973fab43c266a40e4e0dabdc4216db6d5eff	patch
https://git.kernel.org/stable/c/4a3dba48188208e4f66822800e042686784d29d1	patch

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.