linux-kernel - [PATCH] vfs: initialize d_iname to null for long file names

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, 26 Nov 2008 21:41:05 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Eric Van Hensbergen <ericvh@...il.com>,
	Latchesar Ionkov <lucho@...kov.net>,
	v9fs-developer@...ts.sourceforge.net,
	LKML <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: [PATCH] vfs: initialize d_iname to null for long file names

dentry->d_iname is currently uninitialized for long file names.  Init
it to null string to avoid bad behaviors on careless references to it.

Signed-off-by: Wu Fengguang <wfg@...ux.intel.com>
---
diff --git a/fs/dcache.c b/fs/dcache.c
index a1d86c7..29d1768 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -929,6 +929,7 @@ struct dentry *d_alloc(struct dentry * parent, const struct qstr *name)
 			kmem_cache_free(dentry_cache, dentry); 
 			return NULL;
 		}
+		dentry->d_iname[0] = '\0';
 	} else  {
 		dname = dentry->d_iname;
 	}	
--
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/