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cifs: a smb2_validate_and_copy_iov failure does not mean the handle is invalid.
It only means that we do not have a valid cached value for the file_all_info structure. CC: Stable <stable@vger.kernel.org> Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
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@ -733,14 +733,12 @@ int open_shroot(unsigned int xid, struct cifs_tcon *tcon, struct cifs_fid *pfid)
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qi_rsp = (struct smb2_query_info_rsp *)rsp_iov[1].iov_base;
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if (le32_to_cpu(qi_rsp->OutputBufferLength) < sizeof(struct smb2_file_all_info))
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goto oshr_exit;
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rc = smb2_validate_and_copy_iov(
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if (!smb2_validate_and_copy_iov(
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le16_to_cpu(qi_rsp->OutputBufferOffset),
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sizeof(struct smb2_file_all_info),
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&rsp_iov[1], sizeof(struct smb2_file_all_info),
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(char *)&tcon->crfid.file_all_info);
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if (rc)
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goto oshr_exit;
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tcon->crfid.file_all_info_is_valid = 1;
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(char *)&tcon->crfid.file_all_info))
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tcon->crfid.file_all_info_is_valid = 1;
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oshr_exit:
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mutex_unlock(&tcon->crfid.fid_mutex);
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