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From: Leah Rumancik <leah.rumancik@gmail.com>
To: linux-ext4@vger.kernel.org
Cc: Leah Rumancik <leah.rumancik@gmail.com>
Subject: [PATCH v2 1/2] ext4: wipe filename upon file deletion
Date: Wed,  7 Apr 2021 15:42:01 +0000	[thread overview]
Message-ID: <20210407154202.1527941-2-leah.rumancik@gmail.com> (raw)
In-Reply-To: <20210407154202.1527941-1-leah.rumancik@gmail.com>

Zero out filename and file type fields when file is deleted.

Signed-off-by: Leah Rumancik <leah.rumancik@gmail.com>
---
 fs/ext4/namei.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 883e2a7cd4ab..0147c86de99e 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2492,6 +2492,10 @@ int ext4_generic_delete_entry(struct inode *dir,
 			else
 				de->inode = 0;
 			inode_inc_iversion(dir);
+
+			memset(de_del->name, 0, de_del->name_len);
+			memset(&de_del->file_type, 0, sizeof(__u8));
+
 			return 0;
 		}
 		i += ext4_rec_len_from_disk(de->rec_len, blocksize);
-- 
2.31.0.208.g409f899ff0-goog


  reply	other threads:[~2021-04-07 15:42 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-07 15:42 [PATCH v2 0/2] Filename wipeout patch series updates Leah Rumancik
2021-04-07 15:42 ` Leah Rumancik [this message]
2021-04-07 21:33   ` [PATCH v2 1/2] ext4: wipe filename upon file deletion Eric Biggers
2021-04-08  3:48     ` Theodore Ts'o
2021-04-08  5:21       ` Dave Chinner
2021-04-08 19:25         ` Theodore Ts'o
2021-04-09  0:02           ` Darrick J. Wong
2021-04-09  2:51             ` Theodore Ts'o
2021-04-11 23:38               ` Dave Chinner
2021-04-07 15:42 ` [PATCH v2 2/2] ext4: add ioctl FS_IOC_CHKPT_JRNL Leah Rumancik
2021-04-07 18:35   ` Darrick J. Wong
2021-04-07 21:15     ` Dave Chinner
2021-04-08  1:26       ` Darrick J. Wong
2021-04-08  4:43         ` Dave Chinner
2021-04-08 23:49           ` Darrick J. Wong
2021-04-11 23:13             ` Dave Chinner

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