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cifs: fix memory leak in SMB2_read

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commit 05fd5c2c61 upstream.

Commit 088aaf17aa introduced a leak where
if SMB2_read() returned an error we would return without freeing the
request buffer.

Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ronnie Sahlberg 2019-04-23 16:39:45 +10:00 committed by Greg Kroah-Hartman
parent 15e9783915
commit d5bf783a09
1 changed files with 1 additions and 0 deletions
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1
fs/cifs/smb2pdu.c
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@ -3285,6 +3285,7 @@ SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
rc);
}
free_rsp_buf(resp_buftype, rsp_iov.iov_base);
cifs_small_buf_release(req);
return rc == -ENODATA ? 0 : rc;
} else
trace_smb3_read_done(xid, req->PersistentFileId,