High · published October 1, 2025
In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table()
nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code
back to the caller. On failures, ttm will call nouveau_bo_del_ttm() and
free the memory.Thus, when nouveau_bo_init() returns an error, the gem
object has already been released. Then the call to nouveau_bo_ref() will
use the freed "nvbo->bo" and lead to a use-after-free bug.
We should delete the call to nouveau_bo_ref() to avoid the use-after-free.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 5.4, < 5.4.220 | 5.4.220 |
| linux/linux_kernel | ≥ 5.5, < 5.10.150 | 5.10.150 |
| linux/linux_kernel | ≥ 5.11, < 5.15.75 | 5.15.75 |
| linux/linux_kernel | ≥ 5.16, < 5.19.17 | 5.19.17 |
| linux/linux_kernel | ≥ 6.0, < 6.0.3 | 6.0.3 |