linux-kernel - [PATCH 1/3] fs/ntfs3: Fix memory leak if fill

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Message-ID: <f34b8f25-96c7-16d6-1e1c-6bb6c5342edd@paragon-software.com>
Date:   Mon, 27 Sep 2021 18:47:14 +0300
From:   Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
To:     <ntfs3@...ts.linux.dev>
CC:     <linux-kernel@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>
Subject: [PATCH 1/3] fs/ntfs3: Fix memory leak if fill_super failed

Restore fc->s_fs_info to free memory allocated in ntfs_init_fs_context.

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
---
 fs/ntfs3/super.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
index 800897777eb0..7099d9b1f3aa 100644
--- a/fs/ntfs3/super.c
+++ b/fs/ntfs3/super.c
@@ -1308,6 +1308,9 @@ int ntfs_discard(struct ntfs_sb_info *sbi, CLST lcn, CLST len)
 	if (err == -EOPNOTSUPP)
 		sbi->flags |= NTFS_FLAGS_NODISCARD;
 
+	/* Restore fc->s_fs_info to free memory allocated in ntfs_init_fs_context. */
+	fc->s_fs_info = sbi;
+
 	return err;
 }
 
-- 
2.33.0