This is a note to let you know that I've just added the patch titled
staging: rtl8712: prevent buffer overrun in recvbuf2recvframe
to the 3.10-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:
staging-rtl8712-prevent-buffer-overrun-in-recvbuf2recvframe.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From cab462140f8a183e3cca0b51c8b59ef715cb6148 Mon Sep 17 00:00:00 2001
From: Haggai Eran <[email protected]>
Date: Sat, 23 May 2015 23:13:51 +0300
Subject: staging: rtl8712: prevent buffer overrun in recvbuf2recvframe
From: Haggai Eran <[email protected]>
commit cab462140f8a183e3cca0b51c8b59ef715cb6148 upstream.
With an RTL8191SU USB adaptor, sometimes the hints for a fragmented
packet are set, but the packet length is too large. Allocate enough
space to prevent memory corruption and a resulting kernel panic [1].
[1] http://www.spinics.net/lists/linux-wireless/msg136546.html
Signed-off-by: Haggai Eran <[email protected]>
ACKed-by: Larry Finger <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/staging/rtl8712/rtl8712_recv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/staging/rtl8712/rtl8712_recv.c
+++ b/drivers/staging/rtl8712/rtl8712_recv.c
@@ -1075,7 +1075,8 @@ static int recvbuf2recvframe(struct _ada
/* for first fragment packet, driver need allocate 1536 +
* drvinfo_sz + RXDESC_SIZE to defrag packet. */
if ((mf == 1) && (frag == 0))
- alloc_sz = 1658;/*1658+6=1664, 1664 is 128 alignment.*/
+ /*1658+6=1664, 1664 is 128 alignment.*/
+ alloc_sz = max_t(u16, tmp_len, 1658);
else
alloc_sz = tmp_len;
/* 2 is for IP header 4 bytes alignment in QoS packet case.
Patches currently in stable-queue which might be from [email protected] are
queue-3.10/staging-rtl8712-prevent-buffer-overrun-in-recvbuf2recvframe.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
