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0aae8a449b
Out of the 12 defects in lua that coverity reports, 5 of them involve `lua_typename()` and out of the dozens of defects in ZFS that lua reports, 3 of them involve `lua_typename()` due to the ZCP code. Given all of the uses of `lua_typename()` in the ZCP code, I was surprised that there were not more. It appears that only 2 were reported because only 3 called `lua_type()`, which does a defective sanity check that allows invalid types to be passed. lua/lua@d4fb848be7 addressed this in upstream lua 5.3. Unfortunately, we did not get that fix since we use lua 5.2 and we do not have assertions enabled in lua, so the upstream solution would not do anything. While we could adopt the upstream solution and enable assertions, a simpler solution is to fix the issue by making `lua_typename()` return `internal_type_error` whenever it is called with an invalid type. This avoids the array overflow and if we ever see it appear somewhere, we will know there is a problem with the lua interpreter. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Closes #13947 |
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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.