From: Kay Sievers <kay@vrfy.org>
Date: Wed, 4 Jun 2014 12:09:31 +0000 (+0200)
Subject: udev: guard REREADP logic with open(O_ECXL)
X-Git-Tag: v214~90
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=10fab50a3091e0b819c3ddab5a7c07acf750c050

udev: guard REREADP logic with open(O_ECXL)
---

diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index 763062f21..d79891a7c 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -754,7 +754,7 @@ static int synthesize_change(struct udev_device *dev) {
                  * The kernel will send out a change event for the disk, and
                  * "remove/add" for all partitions.
                  */
-                fd = open(udev_device_get_devnode(dev), O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NONBLOCK);
+                fd = open(udev_device_get_devnode(dev), O_RDONLY|O_EXCL|O_CLOEXEC|O_NOFOLLOW|O_NONBLOCK);
                 if (fd >= 0) {
                         r = ioctl(fd, BLKRRPART, 0);
                         close(fd);