libmount: deallocate on /proc/swaps parse error

Addresses: https://github.com/karelzak/util-linux/issues/596
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/libmount/src/tab_parse.c b/libmount/src/tab_parse.c
index ba22ef4be238a2090cfb5f1a21dcb41316a27b0c..3ed84ebc288cd19bbd08a534774404948ecc465d 100644 (file)
--- a/libmount/src/tab_parse.c
+++ b/libmount/src/tab_parse.c
@@ -187,7 +187,7 @@ static int mnt_parse_mountinfo_line(struct libmnt_fs *fs, char *s)
                fs->flags |= MNT_FS_KERNEL;
                fs->devno = makedev(maj, min);
 
-               /* remove "(deleted)" suffix */
+               /* remove "\040(deleted)" suffix */
                sz = strlen(fs->target);
                if (sz > PATH_DELETED_SUFFIX_SZ) {
                        char *ptr = fs->target + (sz - PATH_DELETED_SUFFIX_SZ);
@@ -318,9 +318,7 @@ static int mnt_parse_swaps_line(struct libmnt_fs *fs, char *s)
                fs->size = fsz;
                fs->usedsize = usz;
 
-               unmangle_string(src);
-
-               /* remove "(deleted)" suffix */
+               /* remove "\040(deleted)" suffix */
                sz = strlen(src);
                if (sz > PATH_DELETED_SUFFIX_SZ) {
                        char *p = src + (sz - PATH_DELETED_SUFFIX_SZ);
@@ -328,15 +326,18 @@ static int mnt_parse_swaps_line(struct libmnt_fs *fs, char *s)
                                *p = '\0';
                }
 
+               unmangle_string(src);
+
                rc = mnt_fs_set_source(fs, src);
                if (!rc)
                        mnt_fs_set_fstype(fs, "swap");
-               free(src);
        } else {
                DBG(TAB, ul_debug("tab parse error: [sscanf rc=%d]: '%s'", rc, s));
                rc = -EINVAL;
        }
 
+       free(src);
+
        return rc;
 }