FreeBSD-SA-21:01.fsdisclosure

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-21:01.fsdisclosure Security Advisory The FreeBSD Project Topic: Uninitialized kernel stack leaks in several file systems Category: core Module: fs Announced:...

FreeBSD -- Uninitialized kernel stack leaks in several file systems

Problem Description: Several file systems were not properly initializing the doff field of the dirent structures returned by VOPREADDIR. In particular, tmpfs5, smbfs5, autofs5 and mqueuefs5 were failing to do so. As a result, eight uninitialized kernel stack bytes may be leaked to userspace by...