mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2026-05-27 04:32:16 +03:00
Attila Fülöp
7cc5cb8083
mlock(2) and munlock(2) operate on memory pages whereas malloc(3) does not. So if you munlock(2) a malloced memory region, the whole page containing it is freed. Since this page may contain another malloced and mlocked memory region, used as a password buffer by a concurrent running instance of pam_zfs_key, there is a slight chance of leaking passwords. By using mmap(2) we avoid such problems since it will return whole pages on page aligned addresses. Although the above concern may be mostly academical, it is still better to use mmap(2) for allocating memory since the FreeBSD documentation suggests to call mlock(2) and munlock(2) on page aligned addresses, and other implementations even require it. While here, remove duplicate code in alloc_pw_string() by calling alloc_pw_size(). Reviewed-by: Felix Dörre <felix@dogcraft.de> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Attila Fülöp <attila@fueloep.org> Closes #12665
OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.
Official Resources
- Documentation - for using and developing this repo
- ZoL Site - Linux release info & links
- Mailing lists
- OpenZFS site - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
Installation
Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.
Contribute & Develop
We have a separate document with contribution guidelines.
We have a Code of Conduct.
Release
OpenZFS is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197
Supported Kernels
- The
METAfile contains the officially recognized supported Linux kernel versions. - Supported FreeBSD versions are any supported branches and releases starting from 12.2-RELEASE.