nfsd4: buffer-length check for SUPPATTR_EXCLCREAT
This was an omission from 8c18f2052e
"nfsd41: SUPPATTR_EXCLCREAT attribute".
Cc: Benny Halevy <bhalevy@primarydata.com>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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@ -2483,6 +2483,8 @@ out_acl:
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goto out;
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}
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if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {
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if ((buflen -= 16) < 0)
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goto out_resource;
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WRITE32(3);
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WRITE32(NFSD_SUPPATTR_EXCLCREAT_WORD0);
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WRITE32(NFSD_SUPPATTR_EXCLCREAT_WORD1);
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