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Assertions are meant to check assumptions, but the way that this assertion is written does not check an assumption, since it is provably always true. Removing the assertion will cause a compiler warning (made into an error by -Werror) about printing up to 512 bytes to a 256-byte buffer, so instead, we change the assertion to verify the assumption that we never do a snprintf() that is truncated to avoid overrunning the 256-byte buffer. This was caught by an audit of the codebase to look for misuse of `snprintf()` after CodeQL reported that we had misused `snprintf()`. An explanation of how snprintf() can be misused is here: https://www.redhat.com/en/blog/trouble-snprintf This particular instance did not misuse `snprintf()`, but it was caught by the audit anyway. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Closes #14098 |
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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.
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.