This is a note to let you know that I've just added the patch titled nfsd: Fix up the "supattr_exclcreat" attributes to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: nfsd-fix-up-the-supattr_exclcreat-attributes.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From b26b78cb726007533d81fdf90a62e915002ef5c8 Mon Sep 17 00:00:00 2001 From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx> Date: Tue, 9 May 2017 16:24:59 -0400 Subject: nfsd: Fix up the "supattr_exclcreat" attributes From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx> commit b26b78cb726007533d81fdf90a62e915002ef5c8 upstream. If an NFSv4 client asks us for the supattr_exclcreat, then we must not return attributes that are unsupported by this minor version. Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx> Fixes: 75976de6556f ("NFSD: Return word2 bitmask if setting security..,") Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/nfsd/nfs4xdr.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -2793,9 +2793,16 @@ out_acl: } #endif /* CONFIG_NFSD_PNFS */ if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) { - status = nfsd4_encode_bitmap(xdr, NFSD_SUPPATTR_EXCLCREAT_WORD0, - NFSD_SUPPATTR_EXCLCREAT_WORD1, - NFSD_SUPPATTR_EXCLCREAT_WORD2); + u32 supp[3]; + + supp[0] = nfsd_suppattrs0(minorversion); + supp[1] = nfsd_suppattrs1(minorversion); + supp[2] = nfsd_suppattrs2(minorversion); + supp[0] &= NFSD_SUPPATTR_EXCLCREAT_WORD0; + supp[1] &= NFSD_SUPPATTR_EXCLCREAT_WORD1; + supp[2] &= NFSD_SUPPATTR_EXCLCREAT_WORD2; + + status = nfsd4_encode_bitmap(xdr, supp[0], supp[1], supp[2]); if (status) goto out; } Patches currently in stable-queue which might be from trond.myklebust@xxxxxxxxxxxxxxx are queue-4.9/nfsd-fix-up-the-supattr_exclcreat-attributes.patch