Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 528d3f190c98c8f7d9581f68db4af021696727b2 before 8767f238b0e6c3d0b295ac6dce9fbe6a99bd1b9d; affected 528d3f190c98c8f7d9581f68db4af021696727b2 before b17818307446c5a8d925a39a792261dbfa930041; affected 528d3f190c98c8f7d9581f68db4af021696727b2 before 2985712dc76dfa670eb7fd607c09d4d48e5f5c6e; affected 528d3f190c98c8f7d9581f68db4af021696727b2 before 03fb1708b7d1e76aecebf767ad059c319845039f; affected 528d3f190c98c8f7d9581f68db4af021696727b2 before f490af47bbee02441e356a1e0b86e3b3dd5120ff; affected 528d3f190c98c8f7d9581f68db4af021696727b2 before 34f3ff52cb9fa7dbf04f5c734fcc4cb6ed5d1a95 |
| Linux / Linux | affected 5.12; unaffected 0 before 5.12; unaffected 5.15.198 through 5.15.*; unaffected 6.1.161 through 6.1.*; unaffected 6.6.121 through 6.6.*; unaffected 6.12.66 through 6.12.*; unaffected 6.18.6 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.
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
ADP enrichment
No English description supplied.