Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=213565 cruid should only be used for the initial mount and after this we should use the current users credentials. Ignore the original cruid mount argument when creating a new context for a multiuser mount following a DFS link. Fixes: 24e0a1eff9e2 ("cifs: switch to new mount api") Cc: stable@xxxxxxxxxxxxxxx # 5.11 Signed-off-by: Ronnie Sahlberg <lsahlber@xxxxxxxxxx> --- fs/cifs/cifs_dfs_ref.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c index ec57cdb1590f..5c9a8778c99d 100644 --- a/fs/cifs/cifs_dfs_ref.c +++ b/fs/cifs/cifs_dfs_ref.c @@ -208,6 +208,10 @@ char *cifs_compose_mount_options(const char *sb_mountdata, else noff = tkn_e - (sb_mountdata + off) + 1; + if (strncasecmp(sb_mountdata + off, "cruid=", 6) == 0) { + off += noff; + continue; + } if (strncasecmp(sb_mountdata + off, "unc=", 4) == 0) { off += noff; continue; -- 2.30.2
