This is how the code that overrides the path for shared memory in oxide
would look like. How does that look?

base::FilePath GetSharedMemoryPath() {
  // snap packages
  const char* tmp = getenv("SNAP_NAME");
  if (tmp) {
    return base::FilePath(std::string("/dev/shm/snap.") + tmp + ".oxide");
  }

  // click packages
  tmp = getenv("APP_PKGNAME");
  if (tmp) {
    return base::FilePath(std::string("/dev/shm/") + tmp + ".oxide");
  }

  // default
  return base::FilePath("/dev/shm");
}

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https://bugs.launchpad.net/bugs/1260103

Title:
  oxide should use an app-specific path for shared memory files

Status in Oxide:
  In Progress
Status in apparmor-easyprof-ubuntu package in Ubuntu:
  Confirmed

Bug description:
  Oxide creates shared memory files as /run/shm/.org.chromium.Chromium.*. This 
results in an AppArmor rule like the following:
    owner /run/shm/.org.chromium.Chromium.* rwk, 

  But this rule is too lenient because a malicious app could enumerate
  these files and attack shared memory of other applications. Therefore,
  these paths need to be made application specific.

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https://bugs.launchpad.net/oxide/+bug/1260103/+subscriptions

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