Medium · published January 12, 2023
cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 2.6.12, ≤ 6.1.4 | — |
| debian/debian_linux | all versions | — |