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[WASM] Fix overflow when reading custom section When reading a custom WASM section, it was possible that its name extended beyond the size of the section. This resulted in a bogus value for the section size due to the size overflowing. Fixes heap buffer overflow detected by OSS-fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8190 Differential revision: https://reviews.llvm.org/D50387 llvm-svn: 339269
2018-08-09 00:34:03 +08:00
RUN: not llvm-objdump -s %p/Inputs/WASM/string-outside-section.wasm 2>&1 | FileCheck %s
CHECK: LLVM ERROR: EOF while reading string