Fix libvirt + seccomp combo (bz #855162) Fix scsi hotplug crash (bz #879657) Fix QOM refcount crash (bz #881486)
36 lines
1.1 KiB
Diff
36 lines
1.1 KiB
Diff
From d563cd7529186355aa8dc11e2cc7d16342dca1c9 Mon Sep 17 00:00:00 2001
|
|
From: Stefan Weil <sw@weilnetz.de>
|
|
Date: Sat, 1 Sep 2012 11:12:23 +0200
|
|
Subject: [PATCH] cadence_uart: Fix buffer overflow
|
|
|
|
Report from smatch:
|
|
hw/cadence_uart.c:413 uart_read(13) error: buffer overflow 's->r' 18 <= 18
|
|
|
|
This fixes read access to s->r[R_MAX] which is behind the limits of s->r.
|
|
|
|
Signed-off-by: Stefan Weil <sw@weilnetz.de>
|
|
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
|
|
(cherry picked from commit 5d40097fc09fe5d34cf316a411dc27d455ac2cd0)
|
|
|
|
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
|
|
---
|
|
hw/cadence_uart.c | 2 +-
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
diff --git a/hw/cadence_uart.c b/hw/cadence_uart.c
|
|
index d98e531..f8afc4e 100644
|
|
--- a/hw/cadence_uart.c
|
|
+++ b/hw/cadence_uart.c
|
|
@@ -404,7 +404,7 @@ static uint64_t uart_read(void *opaque, target_phys_addr_t offset,
|
|
uint32_t c = 0;
|
|
|
|
offset >>= 2;
|
|
- if (offset > R_MAX) {
|
|
+ if (offset >= R_MAX) {
|
|
return 0;
|
|
} else if (offset == R_TX_RX) {
|
|
uart_read_rx_fifo(s, &c);
|
|
--
|
|
1.8.0.2
|
|
|