CVE-2026-22982
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.
- Score
- CVSS 3.1 5.5 Medium
- Status
- Modified - 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- Published
- 2026-01-23
- Last modified
- 2026-10-15
- Weaknesses
- CWE-476
Affected products
- Linux Kernel (Linux)
- Simatic S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
- Simatic S7-1500 Cpu 1518f-4 Pndp Mfp (Siemens)
- Siplus S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
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
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
