ext4: fix possible memory leak in ext4_remount()
'orig_data' is malloced in ext4_remount() and should be freed
before leaving from the error handling cases, otherwise it will
cause memory leak.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Cc: stable@vger.kernel.org
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 1ae5860..6ac9c8a 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4543,6 +4543,7 @@
if (!old_opts.s_qf_names[i]) {
for (j = 0; j < i; j++)
kfree(old_opts.s_qf_names[j]);
+ kfree(orig_data);
return -ENOMEM;
}
} else