CVS commit: src/sys/nfs

["Juergen Hannken-Illjes" <hannken%netbsd.org@localhost>]

Module Name:    src
Committed By:   hannken
Date:           Tue Jan 19 10:57:00 UTC 2016

Modified Files:
        src/sys/nfs: nfs_vnops.c

Log Message:
Return an error if NFSPROC_LOOKUP returns the file handle of the current
directory.  Treating it as DOT lookup would put garbage into the name
cache and could panic on future lookups.

Seen with ZFS file system exported from OmniOS, an OpenSolaris derivative.

Fixes PR kern/50664 "cd .." over NFS/ZFS can panic kernel


To generate a diff of this commit:
cvs rdiff -u -r1.308 -r1.309 src/sys/nfs/nfs_vnops.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.