CVE-2026-22982 net: mscc: ocelot: Fix crash when adding interface under a lag

What is CVE-2026-22982?

CVE-2026-22982 is a medium-severity vulnerability in Linux kernel, published on 23 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

net: mscc: ocelot: Fix crash when adding interface under a lag

Commit 15faa1f67ab4 ("lan966x: Fix crash when adding interface under a lag") fixed a similar issue in the lan966x driver caused by a NULL pointer dereference. The ocelot_set_aggr_pgids() function in the ocelot driver has similar logic and is susceptible to the same crash.

This issue specifically affects the ocelot_vsc7514.c frontend, which leaves unused ports as NULL pointers. The felix_vsc9959.c frontend is unaffected as it uses the DSA framework which registers all ports.

Fix this by checking if the port pointer is valid before accessing it.

Weakness: CWE-476

Which versions are affected by CVE-2026-22982?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-22982?

Apply the vendor's patch.

Is CVE-2026-22982 being exploited?

There is no known exploitation of CVE-2026-22982 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-78461, BELL-CVE-2026-22982, DEBIAN-CVE-2026-22982, GHSA-m4w2-2j95-qx2q, ROOT-OS-DEBIAN-12-CVE-2026-22982, ROOT-OS-DEBIAN-13-CVE-2026-22982 and 3 more.