From: "Venkateswararao Jujjuri (JV)" <jvrao@linux.vnet.ibm.com>
To: v9fs-developer@lists.sourceforge.net
Cc: linux-fsdevel@vger.kernel.org,
"Venkateswararao Jujjuri (JV)" <jvrao@linux.vnet.ibm.com>
Subject: [PATCH] [fs/9p] Fix NULL point deref in v9fs_dir_release
Date: Tue, 17 Aug 2010 10:19:01 -0700 [thread overview]
Message-ID: <1282065541-3775-1-git-send-email-jvrao@linux.vnet.ibm.com> (raw)
There are situations in VFS where we endup calling v9fs_dir_release() before
even we instantiate the filp. Hence the check.
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
---
fs/9p/vfs_dir.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 16c8a2a..9be9b35 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -290,6 +290,8 @@ int v9fs_dir_release(struct inode *inode, struct file *filp)
{
struct p9_fid *fid;
+ if (!filp)
+ return 0;
fid = filp->private_data;
P9_DPRINTK(P9_DEBUG_VFS,
"inode: %p filp: %p fid: %d\n", inode, filp, fid->fid);
--
1.6.5.2
next reply other threads:[~2010-08-17 17:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-17 17:19 Venkateswararao Jujjuri (JV) [this message]
2010-08-17 17:13 ` [PATCH] [fs/9p] Fix NULL point deref in v9fs_dir_release Christoph Hellwig
2010-08-17 18:37 ` Venkateswararao Jujjuri (JV)
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1282065541-3775-1-git-send-email-jvrao@linux.vnet.ibm.com \
--to=jvrao@linux.vnet.ibm.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=v9fs-developer@lists.sourceforge.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).