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Richard Yao ab32a14b2e
Silence new static analyzer defect reports from idmap_util.c 
2a068a1394 introduced 2 new defect
reports from Coverity and 1 from Clang's static analyzer.

Coverity complained about a potential resource leak from only calling
`close(fd)` when `fd > 0` because `fd` might be `0`. This is a false
positive, but rather than dismiss it as such, we can change the
comparison to ensure that this never appears again from any static
analyzer. Upon inspection, 6 more instances of this were found in the
file, so those were changed too. Unfortunately, since the file
descriptor has been put into an unsigned variable in `attr.userns_fd`,
we cannot do a non-negative check on it to see if it has not been
allocated, so we instead restructure the error handling to avoid the
need for a check. This also means that errors had not been handled
correctly here, so the static analyzer found a bug (although practically
by accident).

Coverity also complained about a dereference before a NULL check in
`do_idmap_mount()` on `source`. Upon inspection, it appears that the
pointer is never NULL, so we delete the NULL check as cleanup.

Clang's static analyzer complained that the return value of
`write_pid_idmaps()` can be uninitialized if we have no idmaps to write.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Youzhong Yang <yyang@mathworks.com>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes #14061
2022-10-20 14:46:12 -07:00
.github CI: bump actions/upload-artifact to v3 2022-10-12 15:18:39 -07:00
cmd Fix theoretical use of uninitialized values 2022-10-19 17:10:21 -07:00
config Support idmapped mount 2022-10-19 11:17:09 -07:00
contrib Coverity model file update 2022-10-18 11:06:35 -07:00
etc etc: mask zfs-load-key.service 2022-10-12 15:27:55 -07:00
include Optimize microzaps 2022-10-20 11:57:15 -07:00
lib Fix theoretical use of uninitialized values 2022-10-19 17:10:21 -07:00
man Add options to zfs redundant_metadata property 2022-10-19 17:07:51 -07:00
module Linux: Upgrade random_get_pseudo_bytes() to xoshiro256++ 1.0 2022-10-20 14:14:42 -07:00
rpm Add zilstat script to report zil kstats in a user friendly manner 2022-09-02 13:24:07 -07:00
scripts cstyle: Allow URLs in C++ comments 2022-10-13 11:05:05 -07:00
tests Silence new static analyzer defect reports from idmap_util.c 2022-10-20 14:46:12 -07:00
udev Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore autoconf: use include directives instead of recursing down cmd 2022-05-10 10:18:38 -07:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
AUTHORS Introduce BLAKE3 checksums as an OpenZFS feature 2022-06-08 15:55:57 -07:00
autogen.sh autogen.sh: paper over automake <1.14's lack of %reldir% support 2022-05-10 10:20:46 -07:00
CODE_OF_CONDUCT.md Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
configure.ac Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
copy-builtin copy-builtin: add hooks with sed/>> 2022-05-10 10:17:43 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am Replace EXTRA_DIST with dist_noinst_DATA 2022-05-26 09:24:50 -07:00
META Linux 5.19 compat: META 2022-08-02 10:04:38 -07:00
NEWS Fix NEWS file 2020-08-26 21:44:41 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md README: Update OpenZFS website url 2022-01-06 16:25:01 -08:00
RELEASES.md Add RELEASES.md file 2021-04-02 16:33:40 -07:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

img

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.

codecov coverity

Official Resources

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 META file contains the officially recognized supported Linux kernel versions.
  • Supported FreeBSD versions are any supported branches and releases starting from 12.2-RELEASE.