linux-kernel - [PATCH] init/do_mounts.c: treat EROFS like EACCES

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]

Message-Id: <1403107964-1082-1-git-send-email-phdm@macqel.be>
Date:	Wed, 18 Jun 2014 18:12:44 +0200
From:	Philippe De Muyter <phdm@...qel.be>
To:	linux-kernel@...r.kernel.org
Cc:	Philippe De Muyter <phdm@...qel.be>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] init/do_mounts.c: treat EROFS like EACCES

some combinations of filesystem and block device (at least vfat on mmc)
yield -EROFS instead of -EACCES when the device is read-only.  Retry
mounting with MS_RDONLY set, just like for the EACCES case, instead of
failing directly.

Signed-off-by: Philippe De Muyter <phdm@...qel.be>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 init/do_mounts.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/init/do_mounts.c b/init/do_mounts.c
index 82f2288..af7b9b8 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -394,6 +394,7 @@ retry:
 			case 0:
 				goto out;
 			case -EACCES:
+			case -EROFS:
 				flags |= MS_RDONLY;
 				goto retry;
 			case -EINVAL:
-- 
1.7.5.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/