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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
528d3f190c98c8f7d9581f68db4af021696727b2 to < 8767f238b0e6c3d0b295ac6dce9fbe6a99bd1b9daffected528d3f190c98c8f7d9581f68db4af021696727b2 to < b17818307446c5a8d925a39a792261dbfa930041affected528d3f190c98c8f7d9581f68db4af021696727b2 to < 2985712dc76dfa670eb7fd607c09d4d48e5f5c6eaffected528d3f190c98c8f7d9581f68db4af021696727b2 to < 03fb1708b7d1e76aecebf767ad059c319845039faffected528d3f190c98c8f7d9581f68db4af021696727b2 to < f490af47bbee02441e356a1e0b86e3b3dd5120ffaffected528d3f190c98c8f7d9581f68db4af021696727b2 to < 34f3ff52cb9fa7dbf04f5c734fcc4cb6ed5d1a95affected
Linux Linux
Default version status: affected
5.12affected0 to < 5.12unaffected5.15.198 to ≤ 5.15.*unaffected6.1.161 to ≤ 6.1.*unaffected6.6.121 to ≤ 6.6.*unaffected6.12.66 to ≤ 6.12.*unaffected6.18.6 to ≤ 6.18.*unaffected6.19 to ≤ *unaffected
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 ↗