Chunwei Chen c6dab6dd39 Fix unprotected zfs_znode_dmu_fini ... In original code, zfs_znode_dmu_fini is called in zfs_rmnode without zfs_znode_hold_enter. It seems to assume it's ok to do so when the znode is unlinked. However this assumption is not correct, as zfs_zget can be called by NFS through zpl_fh_to_dentry as pointed out by Christian in https://github.com/openzfs/zfs/pull/12767, which could result in a use-after-free bug. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Co-authored-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Chunwei Chen <david.chen@nutanix.com> Signed-off-by: Ryan Moeller <ryan@iXsystems.com> Closes #12767 Closes #14364		2023-01-19 16:59:05 -08:00
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spl	Cleanup: Use NULL when doing NULL pointer comparisons	2023-01-12 16:00:37 -08:00
zfs	Fix unprotected zfs_znode_dmu_fini	2023-01-19 16:59:05 -08:00