CVE-2021-20292
There is a flaw reported in the Linux kernel in versions before 5.9 in drivers/gpu/drm/nouveau/nouveau_sgdma.c in nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker with a local account with a root privilege, can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.
| Software | From | Fixed in |
|---|---|---|
| fedoraproject / fedora | 33 | 33.x |
| redhat / enterprise_linux | 7.0 | 7.0.x |
| redhat / enterprise_linux | 6.0 | 6.0.x |
| debian / debian_linux | 9.0 | 9.0.x |
| linux / linux_kernel | 5.8 | 5.8.2 |
| linux / linux_kernel | 5.5 | 5.7.16 |
| linux / linux_kernel | 4.20 | 5.4.59 |
| linux / linux_kernel | 4.15 | 4.19.140 |
| linux / linux_kernel | 4.10 | 4.14.263 |
| linux / linux_kernel | 3.3 | 4.9.298 |
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