Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-03 04:30:10 +01:00
Code Issues Projects Releases Packages Wiki Activity

Use actual size for old allocation in ft_realloc.

Browse source 
Prevents crashes from improperly freed memory.

Fixes #19008, fixes #18950, fixes #18949.
This commit is contained in:
Matt Brubeck 2017-10-24 15:43:28 -07:00
parent 347176df25
commit 865e81749a
1 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
components/gfx/platform/freetype/font_context.rs
View file

@ -51,13 +51,13 @@ extern fn ft_free(mem: FT_Memory, ptr: *mut c_void) {
}
}
extern fn ft_realloc(mem: FT_Memory, old_size: c_long, new_req_size: c_long,
extern fn ft_realloc(mem: FT_Memory, _old_size: c_long, new_req_size: c_long,
old_ptr: *mut c_void) -> *mut c_void {
let old_actual_size;
let mut vec;
unsafe {
old_actual_size = usable_size(old_ptr as *const _);
let old_size = old_size as usize;
let old_size = old_actual_size as usize;
vec = Vec::<u8>::from_raw_parts(old_ptr as *mut u8, old_size, old_size);
};