[PATCH] D64507: [BitcodeReader] Validate OpNum, before accessing Record array.

[Florian Hahn via Phabricator via llvm-commits]

fhahn added a comment.

I've reverted the patch, because the bitcode file caused an out-of-memory error on a builder.

I think there is another problem with the bitcode file, which causes large allocations. I've seen something similar in other cases generated by cluster fuzz, which set the number of variables or something in the header to a very large number, causing large up-front allocations for an invalid file. I'll take a look.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D64507/new/

https://reviews.llvm.org/D64507