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: <4DC5DBB3.9030207@linux.vnet.ibm.com>
Date:	Sat, 07 May 2011 16:54:27 -0700
From:	Allison Henderson <achender@...ux.vnet.ibm.com>
To:	Ext4 Developers List <linux-ext4@...r.kernel.org>
CC:	Jan Kara <jack@...e.cz>
Subject: [PATCH 1/1] Null Pointer when make_indexed_dir returns -ENOSPC

Fix for a null pointer bug found while running punch hole tests

Signed-off-by: Allison Henderson <achender@...ibm.com>
---
:100644 100644 3c7a06e... 3302a6c... M	fs/ext4/namei.c
 fs/ext4/namei.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 3c7a06e..3302a6c 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1422,7 +1422,8 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
 		 */
 		ext4_mark_inode_dirty(handle, dir);
 		ext4_handle_dirty_metadata(handle, dir, frame->bh);
-		ext4_handle_dirty_metadata(handle, dir, bh);
+		if (bh)
+			ext4_handle_dirty_metadata(handle, dir, bh);
 		dx_release(frames);
 		return retval;
 	}
-- 
1.7.1

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ