From: Kylene Jo Hall <kjhall@us.ibm.com>
To: linux-kernel <linux-kernel@vger.kernel.org>
Cc: akpm@osdl.org,
TPM Device Driver List <tpmdd-devel@lists.sourceforge.net>
Subject: [PATCH] tpm: fix ordering bug in error path
Date: Wed, 19 Apr 2006 14:13:35 -0500 [thread overview]
Message-ID: <1145474015.4894.10.camel@localhost.localdomain> (raw)
The clear_bit of chip->dev_num ended up after the kfree of chip in the
error path of the tpm_register_hardware function. This patch fixes
things to avoid a potential segmentation fault.
This bug was found by Coverity.
Signed-off-by: Kylene Hall <kjhall@us.ibm.com>
---
drivers/char/tpm/tpm.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
--- linux-2.6.17-rc1/drivers/char/tpm/tpm.c 2006-04-18 15:14:45.630390500 -0500
+++ linux-2.6.17-rc1-tpm/drivers/char/tpm/tpm.c 2006-04-19 13:17:51.363688750 -0500
@@ -1139,8 +1139,8 @@ struct tpm_chip *tpm_register_hardware(s
chip->vendor.miscdev.name,
chip->vendor.miscdev.minor);
put_device(dev);
- kfree(chip);
clear_bit(chip->dev_num, dev_mask);
+ kfree(chip);
return NULL;
}
reply other threads:[~2006-04-19 19:17 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=1145474015.4894.10.camel@localhost.localdomain \
--to=kjhall@us.ibm.com \
--cc=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
--cc=tpmdd-devel@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
all inboxes | Powered by JetHome®