CVE-2022-48732

drm/nouveau: fix off by one in BIOS boundary checking

State: Published
Severity: Not scored
Published: Jun 20, 2024
Updated: May 11, 2026
Reserved: Jun 20, 2024

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

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before d4b746e60fd8eaa8016e144223abe91158edcdadAffected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before 909d3ec1bf9f0ec534bfc081b77c0836fea7b0e2Affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before b2a21669ee98aafc41c6d42ef15af4dab9e6e882Affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before acc887ba88333f5fec49631f12d8cc7ebd95781cAffected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before f071d9fa857582d7bd77f4906691f73d3edeab73Affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before d877e814a62b7de9069aeff8bc1d979dfc996e06Affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before e7c36fa8a1e63b08312162179c78a0c7795ea369Affected 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before 1b777d4d9e383d2744fc9b3a09af6ec1893c8b1aAffected
LinuxLinux	4.8Affected before 4.8Not affected 4.9.300 through 4.9.Not affected 4.14.265 through 4.14.Not affected 4.19.228 through 4.19.Not affected 5.4.178 through 5.4.Not affected 5.10.99 through 5.10.Not affected 5.15.22 through 5.15.Not affected 5.16.8 through 5.16.*Not affected 5.17 and laterNot affected

Product

Versions

LinuxLinux

4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before d4b746e60fd8eaa8016e144223abe91158edcdadAffected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before 909d3ec1bf9f0ec534bfc081b77c0836fea7b0e2Affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before b2a21669ee98aafc41c6d42ef15af4dab9e6e882Affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before acc887ba88333f5fec49631f12d8cc7ebd95781cAffected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before f071d9fa857582d7bd77f4906691f73d3edeab73Affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before d877e814a62b7de9069aeff8bc1d979dfc996e06Affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before e7c36fa8a1e63b08312162179c78a0c7795ea369Affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 to before 1b777d4d9e383d2744fc9b3a09af6ec1893c8b1aAffected

LinuxLinux

4.8Affected
before 4.8Not affected
4.9.300 through 4.9.*Not affected
4.14.265 through 4.14.*Not affected
4.19.228 through 4.19.*Not affected
5.4.178 through 5.4.*Not affected
5.10.99 through 5.10.*Not affected
5.15.22 through 5.15.*Not affected
5.16.8 through 5.16.*Not affected
5.17 and laterNot affected

References

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