Tracker / CVE-2022-50454
CVE-2022-50454
High 7.8
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.
Affected products and versions
| linux | linux_kernel · 5.11 → 5.15.75 |
|---|---|
| linux | linux_kernel · 5.16 → 5.19.17 |
| linux | linux_kernel · 5.4 → 5.4.220 |
| linux | linux_kernel · 5.5 → 5.10.150 |
| linux | linux_kernel · 6.0 → 6.0.3 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.