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std.compress.zstd.Decompress: cap input buffer required size

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This commit is contained in:
Andrew Kelley 2025-05-01 19:20:51 -07:00
parent b3da216f1b
commit a091ccb217
1 changed files with 4 additions and 2 deletions
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6
lib/std/compress/zstd/Decompress.zig
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@ -578,8 +578,10 @@ pub const Frame = struct {
@field(self, field_name).table = .{ .rle = try in.takeByte() };
},
.fse => {
if (in.buffer.len < @intFromEnum(remaining.*)) return error.InputBufferUndersize;
const limited_buffer = try in.peek(@intFromEnum(remaining.*));
const max_table_size = 2048;
const peek_len: usize = remaining.minInt(max_table_size);
if (in.buffer.len < peek_len) return error.InputBufferUndersize;
const limited_buffer = try in.peek(peek_len);
var bit_reader: BitReader = .{ .bytes = limited_buffer };
const table_size = try Table.decode(
&bit_reader,