Tracker / CVE-2024-36244
CVE-2024-36244
In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: extend minimum interval restriction to entire cycle too It is possible for syzbot to side-step the restriction imposed by the blamed commit in the Fixes: tag, because the taprio UAPI permits a cycle-time different from (and potentially shorter than) the sum of entry intervals. We need one more restriction, which is that the cycle time itself must be larger than N * ETH_ZLEN bit times, where N is the number of schedule entries. This restriction needs to apply regardless of whether the cycle time came from the user or was the implicit, auto-calculated value, so we move the existing "cycle == 0" check outside the "if "(!new->cycle_time)" branch. This way covers both conditions and scenarios. Add a selftest which illustrates the issue triggered by syzbot.
Prodotti e versioni affette
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.4.68 → 5.5 |
| linux | linux_kernel · 5.8.12 → 5.9 |
| linux | linux_kernel · 5.9.1 → 6.1.119 |
| linux | linux_kernel · 6.2 → 6.6.33 |
| linux | linux_kernel · 6.7 → 6.9.4 |