Arm 5Th Gen Gpu Architecture Userspace Driver
Monthly
Use-after-free memory corruption in Arm's Bifrost, Valhall, and 5th Gen GPU userspace drivers allows a local non-privileged process - including through browser-exposed WebGL or WebGPU operations - to access already-freed memory regions, achieving full confidentiality, integrity, and availability impact. The flaw spans driver revisions from r42p0 through r55p0 across all three GPU families, covering a substantial portion of the Android Mali GPU ecosystem deployed in MediaTek and Samsung Exynos SoCs. No public exploit has been identified at time of analysis, and EPSS sits at 0.14% (4th percentile), but the WebGL/WebGPU trigger path is a notable attack surface reduction that warrants prompt patching on affected devices.
Use-after-free memory access in Arm's Valhall and 5th Gen GPU Architecture userspace drivers allows a non-privileged local process - including browser-hosted WebGL or WebGPU workloads - to read and write already-freed GPU memory regions, yielding limited confidentiality and integrity compromise. Arm reported this issue internally; no active exploitation has been identified. The wide deployment of Arm Mali GPU hardware in mobile and embedded SoCs makes the affected driver versions relevant across a large device population, though the limited CVSS impact scores constrain severity.
Use-after-free memory corruption in Arm's Bifrost, Valhall, and 5th Gen GPU userspace drivers allows a local non-privileged process - including through browser-exposed WebGL or WebGPU operations - to access already-freed memory regions, achieving full confidentiality, integrity, and availability impact. The flaw spans driver revisions from r42p0 through r55p0 across all three GPU families, covering a substantial portion of the Android Mali GPU ecosystem deployed in MediaTek and Samsung Exynos SoCs. No public exploit has been identified at time of analysis, and EPSS sits at 0.14% (4th percentile), but the WebGL/WebGPU trigger path is a notable attack surface reduction that warrants prompt patching on affected devices.
Use-after-free memory access in Arm's Valhall and 5th Gen GPU Architecture userspace drivers allows a non-privileged local process - including browser-hosted WebGL or WebGPU workloads - to read and write already-freed GPU memory regions, yielding limited confidentiality and integrity compromise. Arm reported this issue internally; no active exploitation has been identified. The wide deployment of Arm Mali GPU hardware in mobile and embedded SoCs makes the affected driver versions relevant across a large device population, though the limited CVSS impact scores constrain severity.