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fix integer overflow in IoUring buffer ring size calculation

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Karl Bohlmark 2024-05-07 07:08:31 +00:00 committed by Andrew Kelley
parent fa4a626fac
commit 4616fb0937
1 changed files with 1 additions and 1 deletions
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lib/std/os/linux/IoUring.zig
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@ -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,