linux-kernel - [PATCH] f2fs: fix to restrict mount condition when without CONFIG

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>] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 25 Jul 2018 00:55:46 +0800
From:   Chao Yu <chao@...nel.org>
To:     jaegeuk@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, Chao Yu <yuchao0@...wei.com>
Subject: [PATCH] f2fs: fix to restrict mount condition when without CONFIG_QUOTA

From: Chao Yu <yuchao0@...wei.com>

Like quota_ino feature, we need to reject mounting RDWR with image
which enables project_quota feature when there is no CONFIG_QUOTA
be set in kernel.

Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
 fs/f2fs/super.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index dbc1cb53581f..bb40f08d2861 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -775,6 +775,12 @@ static int parse_options(struct super_block *sb, char *options)
 			 "without CONFIG_QUOTA");
 		return -EINVAL;
 	}
+	if (f2fs_sb_has_project_quota(sbi->sb) && !f2fs_readonly(sbi->sb)) {
+		ext4_msg(sb, KERN_ERR,
+			"Filesystem with project quota feature cannot be "
+			"mounted RDWR without CONFIG_QUOTA");
+		return -EINVAL;
+	}
 #endif
 
 	if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) {
-- 
2.16.2.17.g38e79b1fd