-

CVE-2026-98518

drm/nouveau/dmem: pin VRAM for the whole registered range

In the Linux kernel, the following vulnerability has been resolved:

drm/nouveau/dmem: pin VRAM for the whole registered range

Commit c32287471077 ("gpu/drm/nouveau: enable THP support for GPU memory
migration") grew the device-private region that
nouveau_dmem_chunk_alloc() registers from DMEM_CHUNK_SIZE to
DMEM_CHUNK_SIZE * NR_CHUNKS, but left the VRAM buffer object backing that
region at DMEM_CHUNK_SIZE.

nouveau_dmem_page_addr() returns chunk->bo->offset plus the page's offset
within the registered region, so every page past the first chunk resolves
to VRAM outside the buffer object.

Size the buffer object to the region it backs.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version c3228747107705d47c7e9a03598a434a0380cb73
Version < 06c69c64686a31783c8bec6495dc22822d38c4ce
Status affected
Version c3228747107705d47c7e9a03598a434a0380cb73
Version < 64ca4cdd1031206424e6455f0ae4fb0560d8f46a
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.19
Status affected
Version 0
Version < 6.19
Status unaffected
Version <= 7.2.*
Version 7.2.9
Status unaffected
Version <= *
Version 7.3
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.081
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/06c69c64686a31783c8bec6495dc22822d38c4ce
https://git.kernel.org/stable/c/64ca4cdd1031206424e6455f0ae4fb0560d8f46a