archives/zig
1
0
Fork 0
mirror of https://codeberg.org/ziglang/zig.git synced 2026-03-08 02:44:43 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

fix integer overflow in IoUring buffer ring size calculation

Browse source
This commit is contained in:
Karl Bohlmark 2024-05-07 07:08:31 +00:00 • committed by Andrew Kelley
parent d4d1efeb3e
commit 6eb17a034a
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
lib/std/os/linux/IoUring.zig
View file

@ -1559,7 +1559,7 @@ pub fn setup_buf_ring(fd: posix.fd_t, entries: u16, group_id: u16) !*align(mem.p
if (entries == 0 or entries > 1 << 15) return error.EntriesNotInRange;
if (!std.math.isPowerOfTwo(entries)) return error.EntriesNotPowerOfTwo;
const mmap_size = entries * @sizeOf(linux.io_uring_buf);
const mmap_size = @as(usize, entries) * @sizeOf(linux.io_uring_buf);
const mmap = try posix.mmap(
null,
mmap_size,