Messages in this thread Patch in this message | | | Date | Wed, 11 Apr 2012 16:11:26 -0700 | From | Greg KH <> | Subject | [ 51/59] Fix length of buffer copied in __nfs4_get_acl_uncached |
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3.2-stable review patch. If anyone has any objections, please let me know.
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From: Sachin Prabhu <sprabhu@redhat.com>
commit 20e0fa98b751facf9a1101edaefbc19c82616a68 upstream.
_copy_from_pages() used to copy data from the temporary buffer to the user passed buffer is passed the wrong size parameter when copying data. res.acl_len contains both the bitmap and acl lenghts while acl_len contains the acl length after adjusting for the bitmap size.
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Josh Boyer <jwboyer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/nfs/nfs4proc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3618,7 +3618,7 @@ static ssize_t __nfs4_get_acl_uncached(s if (acl_len > buflen) goto out_free; _copy_from_pages(buf, pages, res.acl_data_offset, - res.acl_len); + acl_len); } ret = acl_len; out_free:
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