35 lines
1.2 KiB
Diff
35 lines
1.2 KiB
Diff
From 71703e4e8bd00719eefad53c2ed6c604079f87ea Mon Sep 17 00:00:00 2001
|
|
From: rpm-build <rpm-build>
|
|
Date: Wed, 17 Oct 2018 09:00:59 +1000
|
|
Subject: [PATCH xserver] xfree86: ensure the readlink buffer is
|
|
null-terminated
|
|
|
|
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
|
|
Reviewed-by: Dave Airlie <airlied@redhat.com>
|
|
---
|
|
hw/xfree86/fbdevhw/fbdevhw.c | 4 ++--
|
|
1 file changed, 2 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/hw/xfree86/fbdevhw/fbdevhw.c b/hw/xfree86/fbdevhw/fbdevhw.c
|
|
index 95089515c..f146ff4a4 100644
|
|
--- a/hw/xfree86/fbdevhw/fbdevhw.c
|
|
+++ b/hw/xfree86/fbdevhw/fbdevhw.c
|
|
@@ -331,12 +331,12 @@ fbdev_open(int scrnIndex, const char *dev, char **namep)
|
|
|
|
/* only touch non-PCI devices on this path */
|
|
{
|
|
- char buf[PATH_MAX];
|
|
+ char buf[PATH_MAX] = {0};
|
|
char *sysfs_path = NULL;
|
|
char *node = strrchr(dev, '/') + 1;
|
|
|
|
if (asprintf(&sysfs_path, "/sys/class/graphics/%s", node) < 0 ||
|
|
- readlink(sysfs_path, buf, sizeof(buf)) < 0 ||
|
|
+ readlink(sysfs_path, buf, sizeof(buf) - 1) < 0 ||
|
|
strstr(buf, "devices/pci")) {
|
|
free(sysfs_path);
|
|
close(fd);
|
|
--
|
|
2.19.1
|
|
|