FAILED: patch "[PATCH] cifs: don't leak -ENOMEM in smb2_open_file()" failed to apply to 6.0-stable tree
[email protected]
maintainerThe patch below does not apply to the 6.0-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.
Possible dependencies:
f60ffa662d14 ("cifs: don't leak -ENOMEM in smb2_open_file()") a9e17d3d74d1 ("cifs: fix static checker warning") 76894f3e2f71 ("cifs: improve symlink handling for smb2+")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From f60ffa662d1427cfd31fe9d895c3566ac50bfe52 Mon Sep 17 00:00:00 2001
From: Paulo Alcantara <[email protected]>
Date: Mon, 19 Dec 2022 10:21:50 -0300
Subject: [PATCH] cifs: don't leak -ENOMEM in smb2_open_file()
A NULL error response might be a valid case where smb2_reconnect() failed to reconnect the session and tcon due to a disconnected server prior to issuing the I/O operation, so don't leak -ENOMEM to userspace on such occasions.
fs/cifs/smb2file.c +2 -2
@@ -122,8 +122,8 @@ int smb2_open_file(const unsigned int xid, struct cifs_open_parms *oparms, __u32struct smb2_hdr *hdr = err_iov.iov_base;if (unlikely (!err_iov.iov_base || err_buftype ==CIFS_NO_BUFFER )) - rc = -ENOMEM ; -else if (hdr->Status ==STATUS_STOPPED_ON_SYMLINK ) { + goto out; +if (hdr->Status ==STATUS_STOPPED_ON_SYMLINK ) { rc =smb2_parse_symlink_response (oparms->cifs_sb, &err_iov, &data->symlink_target);if (!rc) {