linux-ext4 - [PATCH 2/2] ext4: only set EXT4_MOUNT_QUOTA when journalled quota file is specified

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

Message-Id: <20220104143518.134465-2-lczerner@redhat.com>
Date:   Tue,  4 Jan 2022 15:35:18 +0100
From:   Lukas Czerner <lczerner@...hat.com>
To:     linux-ext4@...r.kernel.org, tytso@....edu
Subject: [PATCH 2/2] ext4: only set EXT4_MOUNT_QUOTA when journalled quota file is specified

Only set EXT4_MOUNT_QUOTA when journalled quota file is specified,
otherwise simply disabling specific quota type (usrjquota=) will also
set the EXT4_MOUNT_QUOTA super block option.

Signed-off-by: Lukas Czerner <lczerner@...hat.com>
Fixes: e6e268cb6822 ("ext4: move quota configuration out of handle_mount_opt()")
---
 fs/ext4/super.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index acb0c58cd3d1..52e0be447b9f 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2632,12 +2632,13 @@ static void ext4_apply_quota_options(struct fs_context *fc,
 				continue;
 
 			qname = ctx->s_qf_names[i]; /* May be NULL */
+			if (qname)
+				set_opt(sb, QUOTA);
 			ctx->s_qf_names[i] = NULL;
 			qname = rcu_replace_pointer(sbi->s_qf_names[i], qname,
 						lockdep_is_held(&sb->s_umount));
 			if (qname)
 				kfree_rcu(qname);
-			set_opt(sb, QUOTA);
 		}
 	}
 
-- 
2.31.1