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Commit 3e36a163 authored by Wei Yongjun's avatar Wei Yongjun Committed by Theodore Ts'o
Browse files

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: default avatarWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: default avatarLukas Czerner <lczerner@redhat.com>
Cc: stable@vger.kernel.org
parent df05c1b8

fs/ext4/super.c

+1 −0
Original line number Diff line number Diff line
@@ -4543,6 +4543,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) 
			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