This is a note to let you know that I've just added the patch titled
USB: cdc-acm: fix potential null-pointer dereference
to the 2.6.37-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-cdc-acm-fix-potential-null-pointer-dereference.patch
and it can be found in the queue-2.6.37 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 15e5bee33ffc11d0e5c6f819a65e7881c5c407be Mon Sep 17 00:00:00 2001
From: Johan Hovold <[email protected]>
Date: Tue, 22 Mar 2011 11:12:10 +0100
Subject: USB: cdc-acm: fix potential null-pointer dereference
From: Johan Hovold <[email protected]>
commit 15e5bee33ffc11d0e5c6f819a65e7881c5c407be upstream.
Must check return value of tty_port_tty_get.
Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/usb/class/cdc-acm.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -533,6 +533,8 @@ static void acm_softint(struct work_stru
if (!ACM_READY(acm))
return;
tty = tty_port_tty_get(&acm->port);
+ if (!tty)
+ return;
tty_wakeup(tty);
tty_kref_put(tty);
}
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.37/usb-cdc-acm-fix-memory-corruption-panic.patch
queue-2.6.37/usb-cdc-acm-fix-potential-null-pointer-dereference-on-disconnect.patch
queue-2.6.37/usb-cdc-acm-fix-potential-null-pointer-dereference.patch
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