CVE-2026-46006
7.8 HIGHIn the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix u32 overflow in pushbuf reloc bounds check nouveau...
Published: 2026-05-27 · Last updated: 2026-06-16
Severity and scoring
- CVSS
- 7.8 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-787
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
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 ]
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-46006
- [Patch]https://git.kernel.org/stable/c/2fc87d37be1b730a149b035f9375fdb8cc5333a5
- [Patch]https://git.kernel.org/stable/c/332884f5eb79dd60a7162b079d09d39208567a31
- [Patch]https://git.kernel.org/stable/c/45a45184b9c0b0b26ead06e370cda2073616a7cc
- [Patch]https://git.kernel.org/stable/c/573a1104bd36e49c067a9dc62e7c476d5ee7e92a
- [Patch]https://git.kernel.org/stable/c/d749a9a0ee4014681487e7ae549901aa8c176637
- [Patch]https://git.kernel.org/stable/c/e441d5c23ec644c8d27593db3b8928e8933512a9
- [Patch]https://git.kernel.org/stable/c/fa297e919d1680c38ab268ff952b1698dac987f6
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