linux-kernel - [PATCH] f2fs: nullify fio->encrypted

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Wed, 26 Apr 2017 17:58:43 -0700
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH] f2fs: nullify fio->encrypted_page for each writes

This makes sure each write request has nullified encrypted_page pointer.

Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
 fs/f2fs/segment.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 38b97ad6bceb..b0babb73a076 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -291,7 +291,6 @@ static int __commit_inmem_pages(struct inode *inode,
 		.type = DATA,
 		.op = REQ_OP_WRITE,
 		.op_flags = REQ_SYNC | REQ_PRIO,
-		.encrypted_page = NULL,
 	};
 	pgoff_t last_idx = ULONG_MAX;
 	int err = 0;
@@ -312,6 +311,7 @@ static int __commit_inmem_pages(struct inode *inode,
 
 			fio.page = page;
 			fio.old_blkaddr = NULL_ADDR;
+			fio.encrypted_page = NULL;
 			err = do_write_data_page(&fio);
 			if (err) {
 				unlock_page(page);
-- 
2.11.0