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c1ick ec580bc520
zfs: add bounds checking to zil_parse (#16308)
Make sure log record don't stray beyond valid memory region.

There is a lack of verification of the space occupied by fixed members
of lr_t in the zil_parse.

We can create a crafted image to trigger an out of bounds read by
following these steps:
    1) Do some file operations and reboot to simulate abnormal exit
       without umount
    2) zil_chain.zc_nused: 0x1000
    3) First lr_t
       lr_t.lrc_txtype: 0x0
       lr_t.lrc_reclen: 0x1000-0xb8-0x1
       lr_t.lrc_txg: 0x0
       lr_t.lrc_seq: 0x1
    4) Update checksum in zil_chain.zc_eck

Fix:
Add some checks to make sure the remaining bytes are large enough to
hold an log record.

Signed-off-by: XDTG <click1799@163.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
2024-07-31 17:17:04 -07:00
.github Move nodes into correct subgraphs 2024-01-29 09:16:02 -08:00
cmd ddt: add support for prefetching tables into the ARC 2024-07-26 09:16:18 -07:00
config Use kmap_local_page instead of kmap_atomic (#16329) 2024-07-16 17:27:29 -07:00
contrib ddt: add support for prefetching tables into the ARC 2024-07-26 09:16:18 -07:00
etc etc/init.d: decide which variant to use at build time. 2024-04-08 16:52:24 -07:00
include Linux: Report reclaimable memory to kernel as such (#16385) 2024-07-30 11:40:47 -07:00
lib ddt: add support for prefetching tables into the ARC 2024-07-26 09:16:18 -07:00
man ddt: add support for prefetching tables into the ARC 2024-07-26 09:16:18 -07:00
module zfs: add bounds checking to zil_parse (#16308) 2024-07-31 17:17:04 -07:00
rpm zfs-kmod: fix empty rpm requires/conflicts 2024-04-22 17:55:41 -07:00
scripts disable automatic dependency tracking for dkms builds 2024-06-13 18:08:49 -07:00
tests ddt: add support for prefetching tables into the ARC 2024-07-26 09:16:18 -07:00
udev udev: correctly handle partition #16 and later 2024-03-21 16:38:24 -07:00
.cirrus.yml CI: add FreeBSD build with Cirrus CI 2023-10-06 08:50:26 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Packaging: Auto-generate changelog during configure (#15528) 2023-11-16 08:58:47 -08:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
.mailmap AUTHORS: refresh with recent new contributors (#16362) 2024-07-23 11:47:04 -07:00
AUTHORS AUTHORS: refresh with recent new contributors (#16362) 2024-07-23 11:47:04 -07:00
autogen.sh Ubuntu 22.04 integration: ShellCheck 2022-11-18 11:24:48 -08:00
CODE_OF_CONDUCT.md Documentation corrections 2022-12-22 11:34:28 -08:00
configure.ac Packaging: Auto-generate changelog during configure (#15528) 2023-11-16 08:58:47 -08:00
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 Process script directory for all configs 2022-10-27 16:45:14 -07:00
META Linux 6.9 compat: META (#16358) 2024-07-16 16:27:54 -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 FreeBSD: Fix the build on FreeBSD 12 2023-11-27 12:58:03 -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

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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.

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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 12.4-RELEASE.