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CVE-2020-36788
drm/nouveau: avoid a use-after-free when BO init fails
High7.8EPSS 0.23%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: avoid a use-after-free when BO init fails nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code back to the caller. On failures, ttm_bo_init() invokes the provided destructor which should de-initialize and free the memory. Thus, when nouveau_bo_init() returns an error the gem object has already been released and the memory freed by nouveau_bo_del_ttm().
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)
- 0.23% · top 86% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 – < f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96
- affected 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 – < 548f2ff8ea5e0ce767ae3418d1ec5308990be87d
- affected 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 – < bcf34aa5082ee2343574bc3f4d1c126030913e54
- affected 5.4
- unaffected < 5.4
- unaffected 5.10.73 – ≤ 5.10.*
- unaffected 5.14.12 – ≤ 5.14.*
- unaffected 5.15 – ≤ *
References (3)
- https://git.kernel.org/stable/c/f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/548f2ff8ea5e0ce767ae3418d1ec5308990be87d (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/bcf34aa5082ee2343574bc3f4d1c126030913e54 (opens in a new tab)x_transferred
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)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2020-36788)Record last updated .