Integer overflow in the fb_mmap function in drivers/video/fbmem.c in the Linux kernel before 3.8.9, as used in a certain Motorola build of Android 4.1.2 and other products, allows local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted /dev/graphics/fb0 mmap2 system calls, as demonstrated by the Motochopper pwn program.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | 2.6.12 (including) | 3.0.75 (excluding) |
| Linux_kernel | Linux | 3.1 (including) | 3.2.45 (excluding) |
| Linux_kernel | Linux | 3.3 (including) | 3.4.42 (excluding) |
| Linux_kernel | Linux | 3.5 (including) | 3.8.9 (excluding) |
| Android | Motorola | 4.1.2 (including) | 4.1.2 (including) |