forked from pool/util-linux
51 lines
1.7 KiB
Diff
51 lines
1.7 KiB
Diff
commit ebbeb2c7ac1b00b6083905957837a271e80b187e
|
|
Author: Ludwig Nussel <ludwig.nussel@suse.de>
|
|
Date: Thu Sep 20 14:57:20 2007 +0200
|
|
|
|
mount: doesn't drop privileges properly when calling helpers
|
|
|
|
{,u}mount calls setuid() and setgid() in the wrong order and doesn't checking
|
|
the return value of set{u,g}id(() when running helpers like mount.nfs.
|
|
|
|
Signed-off-by: Ludwig Nussel <ludwig.nussel@suse.de>
|
|
Signed-off-by: Karel Zak <kzak@redhat.com>
|
|
|
|
diff --git a/mount/mount.c b/mount/mount.c
|
|
index 40699f3..5bc2b30 100644
|
|
--- a/mount/mount.c
|
|
+++ b/mount/mount.c
|
|
@@ -634,8 +634,12 @@ check_special_mountprog(const char *spec, const char *node, const char *type, in
|
|
char *oo, *mountargs[10];
|
|
int i = 0;
|
|
|
|
- setuid(getuid());
|
|
- setgid(getgid());
|
|
+ if(setgid(getgid()) < 0)
|
|
+ die(EX_FAIL, _("mount: cannot set group id: %s"), strerror(errno));
|
|
+
|
|
+ if(setuid(getuid()) < 0)
|
|
+ die(EX_FAIL, _("mount: cannot set user id: %s"), strerror(errno));
|
|
+
|
|
oo = fix_opts_string (flags, extra_opts, NULL);
|
|
mountargs[i++] = mountprog; /* 1 */
|
|
mountargs[i++] = (char *) spec; /* 2 */
|
|
diff --git a/mount/umount.c b/mount/umount.c
|
|
index b3100c9..3221619 100644
|
|
--- a/mount/umount.c
|
|
+++ b/mount/umount.c
|
|
@@ -102,8 +102,12 @@ check_special_umountprog(const char *spec, const char *node,
|
|
char *umountargs[8];
|
|
int i = 0;
|
|
|
|
- setuid(getuid());
|
|
- setgid(getgid());
|
|
+ if(setgid(getgid()) < 0)
|
|
+ die(EX_FAIL, _("umount: cannot set group id: %s"), strerror(errno));
|
|
+
|
|
+ if(setuid(getuid()) < 0)
|
|
+ die(EX_FAIL, _("umount: cannot set user id: %s"), strerror(errno));
|
|
+
|
|
umountargs[i++] = umountprog;
|
|
umountargs[i++] = xstrdup(node);
|
|
if (nomtab)
|