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From 76bb9b30cfcf54b59591a57a3d2a747e514469b2 Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Thu, 19 Nov 2020 09:49:16 +0100
Subject: [PATCH] libmount: don't use "symfollow" for helpers on user mounts
Addresses: https://github.com/karelzak/util-linux/issues/1193
Signed-off-by: Karel Zak <kzak@redhat.com>
---
libmount/src/context_mount.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/libmount/src/context_mount.c b/libmount/src/context_mount.c
index 8c394c1ff..dd1786176 100644
--- a/libmount/src/context_mount.c
+++ b/libmount/src/context_mount.c
@@ -415,6 +415,9 @@ static int generate_helper_optstr(struct libmnt_context *cxt, char **optstr)
* string, because there is nothing like MS_EXEC (we only have
* MS_NOEXEC in mount flags and we don't care about the original
* mount string in libmount for VFS options).
+ *
+ * This use-case makes sense for MS_SECURE flags only (see
+ * mnt_optstr_get_flags() and mnt_context_merge_mflags()).
*/
if (!(cxt->mountflags & MS_NOEXEC))
mnt_optstr_append_option(optstr, "exec", NULL);
@@ -422,11 +425,8 @@ static int generate_helper_optstr(struct libmnt_context *cxt, char **optstr)
mnt_optstr_append_option(optstr, "suid", NULL);
if (!(cxt->mountflags & MS_NODEV))
mnt_optstr_append_option(optstr, "dev", NULL);
- if (!(cxt->mountflags & MS_NOSYMFOLLOW))
- mnt_optstr_append_option(optstr, "symfollow", NULL);
}
-
if (cxt->flags & MNT_FL_SAVED_USER)
rc = mnt_optstr_set_option(optstr, "user", cxt->orig_user);
if (rc)
--
2.29.2
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