CVE-2026-46006drm/nouveau: fix u32 overflow in pushbuf reloc bounds check
- 7.8HighCVSS base score
- 0.14%Exploitation in 30 daysEPSS · top 96% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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 ]
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.14% · top 96% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected a1606a9596e54da90ad6209071b357a4c1b0fa82 – < 3429275684f4bad42876955301f3c5c814aae909
- affected a1606a9596e54da90ad6209071b357a4c1b0fa82 – < 573a1104bd36e49c067a9dc62e7c476d5ee7e92a
- affected a1606a9596e54da90ad6209071b357a4c1b0fa82 – < 45a45184b9c0b0b26ead06e370cda2073616a7cc
- affected a1606a9596e54da90ad6209071b357a4c1b0fa82 – < fa297e919d1680c38ab268ff952b1698dac987f6
- affected a1606a9596e54da90ad6209071b357a4c1b0fa82 – < d749a9a0ee4014681487e7ae549901aa8c176637
- affected a1606a9596e54da90ad6209071b357a4c1b0fa82 – < 332884f5eb79dd60a7162b079d09d39208567a31
- affected a1606a9596e54da90ad6209071b357a4c1b0fa82 – < e441d5c23ec644c8d27593db3b8928e8933512a9
- affected a1606a9596e54da90ad6209071b357a4c1b0fa82 – < 2fc87d37be1b730a149b035f9375fdb8cc5333a5
- affected 2.6.34
- unaffected < 2.6.34
- unaffected 5.10.259 – ≤ 5.10.*
- unaffected 5.15.209 – ≤ 5.15.*
- unaffected 6.1.175 – ≤ 6.1.*
- unaffected 6.6.140 – ≤ 6.6.*
- unaffected 6.12.86 – ≤ 6.12.*
- unaffected 6.18.27 – ≤ 6.18.*
- unaffected 7.0.4 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References8
- https://git.kernel.org/stable/c/3429275684f4bad42876955301f3c5c814aae909 (opens in a new tab)
- https://git.kernel.org/stable/c/573a1104bd36e49c067a9dc62e7c476d5ee7e92a (opens in a new tab)
- https://git.kernel.org/stable/c/45a45184b9c0b0b26ead06e370cda2073616a7cc (opens in a new tab)
- https://git.kernel.org/stable/c/fa297e919d1680c38ab268ff952b1698dac987f6 (opens in a new tab)
- https://git.kernel.org/stable/c/d749a9a0ee4014681487e7ae549901aa8c176637 (opens in a new tab)
- https://git.kernel.org/stable/c/332884f5eb79dd60a7162b079d09d39208567a31 (opens in a new tab)
- https://git.kernel.org/stable/c/e441d5c23ec644c8d27593db3b8928e8933512a9 (opens in a new tab)
- https://git.kernel.org/stable/c/2fc87d37be1b730a149b035f9375fdb8cc5333a5 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32303 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-46006)Record last updated .