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| author | Jonathan Marler <johnnymarler@gmail.com> | 2020-06-28 14:33:41 -0600 |
|---|---|---|
| committer | Andrew Kelley <andrew@ziglang.org> | 2020-06-28 18:05:18 -0400 |
| commit | c2eead9629b60a394aa61e6f96b89647eddce1ea (patch) | |
| tree | a14ec292715a2ceb0cd9b8d018eee58449230256 /lib/std/heap.zig | |
| parent | 374e3e42e0de10d21406c077599cfc4a6a813497 (diff) | |
| download | zig-c2eead9629b60a394aa61e6f96b89647eddce1ea.tar.gz zig-c2eead9629b60a394aa61e6f96b89647eddce1ea.zip | |
Fix issue 5741, use after free
Diffstat (limited to 'lib/std/heap.zig')
| -rw-r--r-- | lib/std/heap.zig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/std/heap.zig b/lib/std/heap.zig index 260841ad2d..ea9e95c675 100644 --- a/lib/std/heap.zig +++ b/lib/std/heap.zig @@ -714,6 +714,11 @@ test "PageAllocator" { slice[127] = 0x34; allocator.free(slice); } + { + var buf = try allocator.alloc(u8, mem.page_size + 1); + defer allocator.free(buf); + buf = try allocator.realloc(buf, 1); // shrink past the page boundary + } } test "HeapAllocator" { |