CVE-2025-40277
High
drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE This data originates from userspace and is used in buffer offset calculations which could potentially overflow causing an out-of-bounds access.
Exploit probability
0.2%
Published
December 6, 2025
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2025-40277
View original source
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE This data originates from userspace and is used in buffer offset calculations which could potentially overflow causing an out-of-bounds access.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/32b415a9dc2c212e809b7ebc2b14bc3fbda2b9af
- https://git.kernel.org/stable/c/54d458b244893e47bda52ec3943fdfbc8d7d068b
- https://git.kernel.org/stable/c/5aea2cde03d4247cdcf53f9ab7d0747c9dca1cfc
- https://git.kernel.org/stable/c/709e5c088f9c99a5cf2c1d1c6ce58f2cca7ab173
- https://git.kernel.org/stable/c/a3abb54c27b2c393c44362399777ad2f6e1ff17e
- https://git.kernel.org/stable/c/b5df9e06eed3df6a4f5c6f8453013b0cabb927b4
- https://git.kernel.org/stable/c/e58559845021c3bad5e094219378b869157fad53
- https://git.kernel.org/stable/c/f3f3a8eb3f0ba799fae057091d8c67cca12d6fa0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40277.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-40277