[all-commits] [llvm/llvm-project] f64223: [scudo] Only read urandom if getrandom syscall isn...

[Christopher Ferris via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f64223647e1969253ddc1bd8725bfacfc0456215
      https://github.com/llvm/llvm-project/commit/f64223647e1969253ddc1bd8725bfacfc0456215
  Author: Christopher Ferris <cferris1000 at users.noreply.github.com>
  Date:   2025-10-06 (Mon, 06 Oct 2025)

  Changed paths:
    M compiler-rt/lib/scudo/standalone/linux.cpp

  Log Message:
  -----------
  [scudo] Only read urandom if getrandom syscall isn't available. (#161889)

If the getrandom system call is available, but the call returns an
error, it could mean that the system doesn't have enough randomness to
respond yet. Trying to read /dev/urandom will likely block and cause
initialization to be stalled. Therefore, return false in this case and
use the backup random data.



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