[all-commits] [llvm/llvm-project] b8de7c: [libc] unpoison memory returned by pipe syscall (#...

[Michael Jones via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b8de7cf6588ebc95e33a0e4a5b4254a94df60e4e
      https://github.com/llvm/llvm-project/commit/b8de7cf6588ebc95e33a0e4a5b4254a94df60e4e
  Author: Michael Jones <michaelrj at google.com>
  Date:   2024-04-18 (Thu, 18 Apr 2024)

  Changed paths:
    M libc/src/unistd/linux/pipe.cpp
    M utils/bazel/llvm-project-overlay/libc/BUILD.bazel

  Log Message:
  -----------
  [libc] unpoison memory returned by pipe syscall (#88942)

The memory sanitizer doesn't recognize the results of the pipe syscall
as being initialized. This patch manually unpoisons that memory.



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