util-linux/umount-don-t-try-it-as-non-suid-if-not-found-mountin.patch

32 lines
1021 B
Diff

From d5edb1003bf3f06c907ac5e3f342cef3e41bccf9 Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Mon, 24 Feb 2020 13:02:09 +0100
Subject: [PATCH 076/389] umount: don't try it as non-suid if not found
mountinfo entry
Addresses: https://github.com/karelzak/util-linux/issues/961
Signed-off-by: Karel Zak <kzak@redhat.com>
---
sys-utils/umount.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sys-utils/umount.c b/sys-utils/umount.c
index 74d87d6..056ffb8 100644
--- a/sys-utils/umount.c
+++ b/sys-utils/umount.c
@@ -223,8 +223,10 @@ static int umount_one(struct libmnt_context *cxt, const char *spec)
if (rc == -EPERM
&& mnt_context_is_restricted(cxt)
+ && mnt_context_tab_applied(cxt)
&& !mnt_context_syscall_called(cxt)) {
- /* Failed somewhere in libmount, drop perms and try it again */
+ /* Mountpoint exists, but failed something else in libmount,
+ * drop perms and try it again */
suid_drop(cxt);
rc = mnt_context_umount(cxt);
}
--
1.8.3.1