CVE-2022-48732
drm/nouveau: fix off by one in BIOS boundary checking
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix off by one in BIOS boundary checking Bounds checking when parsing init scripts embedded in the BIOS reject access to the last byte. This causes driver initialization to fail on Apple eMac's with GeForce 2 MX GPUs, leaving the system with no working console. This is probably only seen on OpenFirmware machines like PowerPC Macs because the BIOS image provided by OF is only the used parts of the ROM, not a power-of-two blocks read from PCI directly so PCs always have empty bytes at the end that are never accessed.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| 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)
- 0.24% · top 85% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 – < d4b746e60fd8eaa8016e144223abe91158edcdad
- affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 – < 909d3ec1bf9f0ec534bfc081b77c0836fea7b0e2
- affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 – < b2a21669ee98aafc41c6d42ef15af4dab9e6e882
- affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 – < acc887ba88333f5fec49631f12d8cc7ebd95781c
- affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 – < f071d9fa857582d7bd77f4906691f73d3edeab73
- affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 – < d877e814a62b7de9069aeff8bc1d979dfc996e06
- affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 – < e7c36fa8a1e63b08312162179c78a0c7795ea369
- affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 – < 1b777d4d9e383d2744fc9b3a09af6ec1893c8b1a
- affected 4.8
- unaffected < 4.8
- unaffected 4.9.300 – ≤ 4.9.*
- unaffected 4.14.265 – ≤ 4.14.*
- unaffected 4.19.228 – ≤ 4.19.*
- unaffected 5.4.178 – ≤ 5.4.*
- unaffected 5.10.99 – ≤ 5.10.*
- unaffected 5.15.22 – ≤ 5.15.*
- unaffected 5.16.8 – ≤ 5.16.*
- unaffected 5.17 – ≤ *
References (8)
- https://git.kernel.org/stable/c/d4b746e60fd8eaa8016e144223abe91158edcdad (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/909d3ec1bf9f0ec534bfc081b77c0836fea7b0e2 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/b2a21669ee98aafc41c6d42ef15af4dab9e6e882 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/acc887ba88333f5fec49631f12d8cc7ebd95781c (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/f071d9fa857582d7bd77f4906691f73d3edeab73 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/d877e814a62b7de9069aeff8bc1d979dfc996e06 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/e7c36fa8a1e63b08312162179c78a0c7795ea369 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/1b777d4d9e383d2744fc9b3a09af6ec1893c8b1a (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)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-48732)Record last updated .