3 ms·

Seems it wasn't disabled in 2009 https://github.com/torvalds/linux/commit/a3ca86aea507904148870946d599e07a340b39bf https://github.com/torvalds/linux/commit/a3c

• jcranmer 5y ago
  That case wasn't one of the cases where null pointers are valid memory, judging from the commit message. (There was a case where gcc had a bug where it didn't disable that check properly, but this doesn't appear to be that case.)