In the Linux kernel, the following vulnerability has been resolved:
dm-ioctl: fix a possible overflow in list_version_get_info
sizeof(tt->version) is 12 bytes, but the code writes 16 bytes into the output buffer - info->vers->version[0], info->vers->version[1], info->vers->version[2] and info->vers->next. This can cause buffer overflow.
Fix this buffer overflow by replacing sizeof(tt->version) with sizeof(struct dm_target_versions).
References
- https://git.kernel.org/stable/c/29536a9ff146d9bbd618959857ed2e691cda1d21
- https://git.kernel.org/stable/c/76c6f845dc0c614304a6e6ee619b552f97cf24b3
- https://git.kernel.org/stable/c/d61c12573ed9768690fdcb2bc38846a1bcb01358
- https://git.kernel.org/stable/c/df50c24c6447c18886ed126d3d81cc7e155ea8b6
- https://git.kernel.org/stable/c/e0f5842c4e2a7dbefb52a2dc6711789bc6963e55