Hi, it seems there is a bug in av7110_vbi_write() (av7110_v4l.c). If an user mode application tries to write more bytes than the size of the structure v4l2_slices_vbi_data, copy_from_user() will overwrite parts of the kernel stack. Regards, Hartmut -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html