CVE-2026-46006

HIGH

drm/nouveau: fix u32 overflow in pushbuf reloc bounds check

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix u32 overflow in pushbuf reloc bounds check nouveau_gem_pushbuf_reloc_apply() validates each relocation with if (r->reloc_bo_offset + 4 > nvbo->bo.base.size) but reloc_bo_offset is __u32 (uapi/drm/nouveau_drm.h) and the integer literal 4 promotes to unsigned int, so the addition is performed in 32 bits and wraps before the comparison against the size_t bo size. Cast to u64 so the addition happens in 64-bit arithmetic. [ Add Fixes: tag. - Danilo ]

Scores

CVSS v3 7.8
EPSS 0.0014
EPSS Percentile 4.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (27)
linux/Kernel 2.6.34 - 5.10.259linux
linux/Kernel 5.11.0 - 5.15.209linux
linux/Kernel 5.16.0 - 6.1.175linux
linux/Kernel 6.13.0 - 6.18.27linux
linux/Kernel 6.19.0 - 7.0.4linux
linux/Kernel 6.2.0 - 6.6.140linux
linux/Kernel 6.7.0 - 6.12.86linux
Linux/Linux < 2.6.34
Linux/Linux 2.6.34
Linux/Linux 5.10.259 - 5.10.*
... and 17 more
Published May 27, 2026
Tracked Since May 27, 2026