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[nanbield,18/21] udev-extraconf: fix unmount directories containing octal-escaped chars

Message ID c3c31248233356a04db1d5ed375b647656d80fa0.1708012696.git.steve@sakoman.com
State Accepted
Delegated to: Steve Sakoman
Headers show
Series [nanbield,01/21] tiff: fix CVE-2023-6228 | expand

Commit Message

Steve Sakoman Feb. 15, 2024, 4:18 p.m. UTC 
From: Jonathan GUILLOT <jonathan@joggee.fr>

USB devices are auto-mounted in a directory named like theirs labels.
Special characters like whitespace are octal-escaped in /proc/mounts
output. Using directly this output file as an argument for umount failed
and the mount directory can't be removed as still busy.
Using printf allows these special characters to be unescaped.

Signed-off-by: Jonathan GUILLOT <jonathan@joggee.fr>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 37f17625d931a06888388682dc2b1f5a2d298125)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
---
 meta/recipes-core/udev/udev-extraconf/mount.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/meta/recipes-core/udev/udev-extraconf/mount.sh b/meta/recipes-core/udev/udev-extraconf/mount.sh
index b7e86dbc0e..6cb0a9fea8 100644
--- a/meta/recipes-core/udev/udev-extraconf/mount.sh
+++ b/meta/recipes-core/udev/udev-extraconf/mount.sh
@@ -196,7 +196,7 @@  if [ "$ACTION" = "remove" ] || [ "$ACTION" = "change" ] && [ -x "$UMOUNT" ] && [
         logger "mount.sh/remove" "cleaning up $DEVNAME, was mounted by the auto-mounter"
         for mnt in `cat /proc/mounts | grep "$DEVNAME" | cut -f 2 -d " " `
         do
-                $UMOUNT $mnt
+                $UMOUNT "`printf $mnt`"
         done
         # Remove mount directory created by the auto-mounter
         # and clean up our tmp cache file