drm/mediatek: Add 0 size check to mtk_drm_gem_obj
In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Add 0 size check to mtk_drm_gem_obj Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object of 0 bytes. Currently, no such check exists and the kernel will panic if a userspace application attempts to allocate a 0x0 GBM buffer. Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and verifying that we now return EINVAL.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Add 0 size check to mtk_drm_gem_obj Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object of 0 bytes. Currently, no such check exists and the kernel will panic if a userspace application attempts to allocate a 0x0 GBM buffer. Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and verifying that we now return EINVAL.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0e3b6f9123726858cac299e1654e3d20424cabe4
- https://git.kernel.org/stable/c/13562c2d48c9ee330de1077d00146742be368f05
- https://git.kernel.org/stable/c/1e4350095e8ab2577ee05f8c3b044e661b5af9a0
- https://git.kernel.org/stable/c/79078880795478d551a05acc41f957700030d364
- https://git.kernel.org/stable/c/9489951e3ae505534c4013db4e76b1b5a3151ac7
- https://git.kernel.org/stable/c/af26ea99019caee1500bf7e60c861136c0bf8594
- https://git.kernel.org/stable/c/be34a1b351ea7faeb15dde8c44fe89de3980ae67
- https://git.kernel.org/stable/c/d17b75ee9c2e44d3a3682c4ea5ab713ea6073350
- https://git.kernel.org/stable/c/fb4aabdb1b48c25d9e1ee28f89440fd2ce556405
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38549.json
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-38549