Richard Yao 9f1691a964 Linux: Fix use-after-free in zfsvfs_create()
Coverity reported that we pass a pointer to zfsvfs to
`dmu_objset_disown()` after freeing zfsvfs in zfsvfs_create_impl() after
a failure in zfsvfs_init().

We have nearly identical duplicate versions of this code for FreeBSD and
Linux, but interestingly, the FreeBSD version of this code differs in
such a way that it does not suffer from this bug. We remove the
difference from the FreeBSD version to fix this bug.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes #13883
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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 12.2-RELEASE.
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