kernel: drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()

A flaw was found in the Linux kernel's Direct Rendering Manager DRM Graphics Execution Manager GEM component. This vulnerability arises from an inconsistent calculation of plane dimensions, which can lead to incorrect memory allocation checks. A local attacker could exploit this by creating a...

PT-2026-60429

Name of the Vulnerable Software and Affected Versions libheif affected versions not specified Description A heap buffer overflow occurs in the uncompressed encoder when processing a HEIF image where the alpha plane is larger than the picture. This happens because the encoder writes past the...

CVE-2026-46209 drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()

In the Linux kernel, the following vulnerability has been resolved: drm/gem: Fix inconsistent plane dimension calculation in drmgemfbinitwithfuncs drmgemfbinitwithfuncs computes sub-sampled plane dimensions using plain integer division: unsigned int width = modecmd-width / i ? info-hsub : 1;...