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-rw-r--r--debian/patches/upstream/libmount-fix-deleted-suffix-issue-CVE-2021-3996.patch189
1 files changed, 189 insertions, 0 deletions
diff --git a/debian/patches/upstream/libmount-fix-deleted-suffix-issue-CVE-2021-3996.patch b/debian/patches/upstream/libmount-fix-deleted-suffix-issue-CVE-2021-3996.patch
new file mode 100644
index 0000000..748dbeb
--- /dev/null
+++ b/debian/patches/upstream/libmount-fix-deleted-suffix-issue-CVE-2021-3996.patch
@@ -0,0 +1,189 @@
+From 823f270e138d1f752f1acf4827847eab97b07a87 Mon Sep 17 00:00:00 2001
+From: Karel Zak <kzak@redhat.com>
+Date: Tue, 4 Jan 2022 10:54:20 +0100
+Subject: [PATCH 2/2] libmount: fix (deleted) suffix issue [CVE-2021-3996]
+
+This issue is related to parsing the /proc/self/mountinfo file allows an
+unprivileged user to unmount other user's filesystems that are either
+world-writable themselves or mounted in a world-writable directory.
+
+The support for "(deleted)" is no more necessary as the Linux kernel does
+not use it in /proc/self/mountinfo and /proc/self/mount files anymore.
+
+Signed-off-by: Karel Zak <kzak@redhat.com>
+---
+ libmount/src/tab_parse.c | 5 -----
+ tests/expected/findmnt/filter-options | 1 -
+ tests/expected/findmnt/filter-options-nameval-neg | 3 +--
+ tests/expected/findmnt/filter-types-neg | 1 -
+ tests/expected/findmnt/outputs-default | 3 +--
+ tests/expected/findmnt/outputs-force-tree | 3 +--
+ tests/expected/findmnt/outputs-kernel | 3 +--
+ tests/expected/libmount/tabdiff-mount | 1 -
+ tests/expected/libmount/tabdiff-move | 1 -
+ tests/expected/libmount/tabdiff-remount | 1 -
+ tests/expected/libmount/tabdiff-umount | 1 -
+ tests/expected/libmount/tabfiles-parse-mountinfo | 11 -----------
+ tests/expected/libmount/tabfiles-py-parse-mountinfo | 11 -----------
+ tests/ts/findmnt/files/mountinfo | 1 -
+ tests/ts/findmnt/files/mountinfo-nonroot | 1 -
+ tests/ts/libmount/files/mountinfo | 1 -
+ 16 files changed, 4 insertions(+), 44 deletions(-)
+
+--- a/libmount/src/tab_parse.c
++++ b/libmount/src/tab_parse.c
+@@ -225,11 +225,6 @@ static int mnt_parse_mountinfo_line(stru
+ goto fail;
+ }
+
+- /* remove "\040(deleted)" suffix */
+- p = (char *) endswith(fs->target, PATH_DELETED_SUFFIX);
+- if (p && *p)
+- *p = '\0';
+-
+ s = skip_separator(s);
+
+ /* (6) vfs options (fs-independent) */
+--- a/tests/expected/findmnt/filter-options
++++ b/tests/expected/findmnt/filter-options
+@@ -28,5 +28,4 @@ TARGET SOURCE
+ /home/kzak/.gvfs gvfs-fuse-daemon fuse.gvfs-fuse-daemon rw,nosuid,nodev,relatime,user_id=500,group_id=500
+ /var/lib/nfs/rpc_pipefs sunrpc rpc_pipefs rw,relatime
+ /mnt/sounds //foo.home/bar/ cifs rw,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+-/mnt/foo /fooooo bar rw,relatime
+ rc=0
+--- a/tests/expected/findmnt/filter-options-nameval-neg
++++ b/tests/expected/findmnt/filter-options-nameval-neg
+@@ -29,6 +29,5 @@ TARGET SOURCE
+ |-/home/kzak /dev/mapper/kzak-home ext4 rw,noatime,barrier=1,data=ordered
+ | `-/home/kzak/.gvfs gvfs-fuse-daemon fuse.gvfs-fuse-daemon rw,nosuid,nodev,relatime,user_id=500,group_id=500
+ |-/var/lib/nfs/rpc_pipefs sunrpc rpc_pipefs rw,relatime
+-|-/mnt/sounds //foo.home/bar/ cifs rw,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+-`-/mnt/foo /fooooo bar rw,relatime
++`-/mnt/sounds //foo.home/bar/ cifs rw,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+ rc=0
+--- a/tests/expected/findmnt/filter-types-neg
++++ b/tests/expected/findmnt/filter-types-neg
+@@ -28,5 +28,4 @@ TARGET SOURCE
+ /home/kzak/.gvfs gvfs-fuse-daemon fuse.gvfs-fuse-daemon rw,nosuid,nodev,relatime,user_id=500,group_id=500
+ /var/lib/nfs/rpc_pipefs sunrpc rpc_pipefs rw,relatime
+ /mnt/sounds //foo.home/bar/ cifs rw,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+-/mnt/foo /fooooo bar rw,relatime
+ rc=0
+--- a/tests/expected/findmnt/outputs-default
++++ b/tests/expected/findmnt/outputs-default
+@@ -30,6 +30,5 @@ TARGET SOURCE
+ |-/home/kzak /dev/mapper/kzak-home ext4 rw,noatime,barrier=1,data=ordered
+ | `-/home/kzak/.gvfs gvfs-fuse-daemon fuse.gvfs-fuse-daemon rw,nosuid,nodev,relatime,user_id=500,group_id=500
+ |-/var/lib/nfs/rpc_pipefs sunrpc rpc_pipefs rw,relatime
+-|-/mnt/sounds //foo.home/bar/ cifs rw,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+-`-/mnt/foo /fooooo bar rw,relatime
++`-/mnt/sounds //foo.home/bar/ cifs rw,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+ rc=0
+--- a/tests/expected/findmnt/outputs-force-tree
++++ b/tests/expected/findmnt/outputs-force-tree
+@@ -30,6 +30,5 @@ TARGET SOURCE
+ |-/home/kzak /dev/mapper/kzak-home ext4 rw,noatime,barrier=1,data=ordered
+ | `-/home/kzak/.gvfs gvfs-fuse-daemon fuse.gvfs-fuse-daemon rw,nosuid,nodev,relatime,user_id=500,group_id=500
+ |-/var/lib/nfs/rpc_pipefs sunrpc rpc_pipefs rw,relatime
+-|-/mnt/sounds //foo.home/bar/ cifs rw,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+-`-/mnt/foo /fooooo bar rw,relatime
++`-/mnt/sounds //foo.home/bar/ cifs rw,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+ rc=0
+--- a/tests/expected/findmnt/outputs-kernel
++++ b/tests/expected/findmnt/outputs-kernel
+@@ -30,6 +30,5 @@ TARGET SOURCE
+ |-/home/kzak /dev/mapper/kzak-home ext4 rw,noatime,barrier=1,data=ordered
+ | `-/home/kzak/.gvfs gvfs-fuse-daemon fuse.gvfs-fuse-daemon rw,nosuid,nodev,relatime,user_id=500,group_id=500
+ |-/var/lib/nfs/rpc_pipefs sunrpc rpc_pipefs rw,relatime
+-|-/mnt/sounds //foo.home/bar/ cifs rw,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+-`-/mnt/foo /fooooo bar rw,relatime
++`-/mnt/sounds //foo.home/bar/ cifs rw,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+ rc=0
+--- a/tests/expected/libmount/tabdiff-mount
++++ b/tests/expected/libmount/tabdiff-mount
+@@ -1,3 +1,2 @@
+ /dev/mapper/kzak-home on /home/kzak: MOUNTED
+-/fooooo on /mnt/foo: MOUNTED
+ tmpfs on /mnt/test/foo bar: MOUNTED
+--- a/tests/expected/libmount/tabdiff-move
++++ b/tests/expected/libmount/tabdiff-move
+@@ -1,3 +1,2 @@
+ //foo.home/bar/ on /mnt/music: MOVED to /mnt/music
+-/fooooo on /mnt/foo: UMOUNTED
+ tmpfs on /mnt/test/foo bar: UMOUNTED
+--- a/tests/expected/libmount/tabdiff-remount
++++ b/tests/expected/libmount/tabdiff-remount
+@@ -1,4 +1,3 @@
+ /dev/mapper/kzak-home on /home/kzak: REMOUNTED from 'rw,noatime,barrier=1,data=ordered' to 'ro,noatime,barrier=1,data=ordered'
+ //foo.home/bar/ on /mnt/sounds: REMOUNTED from 'rw,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344' to 'ro,relatime,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344'
+-/fooooo on /mnt/foo: UMOUNTED
+ tmpfs on /mnt/test/foo bar: UMOUNTED
+--- a/tests/expected/libmount/tabdiff-umount
++++ b/tests/expected/libmount/tabdiff-umount
+@@ -1,3 +1,2 @@
+ /dev/mapper/kzak-home on /home/kzak: UMOUNTED
+-/fooooo on /mnt/foo: UMOUNTED
+ tmpfs on /mnt/test/foo bar: UMOUNTED
+--- a/tests/expected/libmount/tabfiles-parse-mountinfo
++++ b/tests/expected/libmount/tabfiles-parse-mountinfo
+@@ -351,17 +351,6 @@ id: 47
+ parent: 20
+ devno: 0:38
+ ------ fs:
+-source: /fooooo
+-target: /mnt/foo
+-fstype: bar
+-optstr: rw,relatime
+-VFS-optstr: rw,relatime
+-FS-opstr: rw
+-root: /
+-id: 48
+-parent: 20
+-devno: 0:39
+------- fs:
+ source: tmpfs
+ target: /mnt/test/foo bar
+ fstype: tmpfs
+--- a/tests/expected/libmount/tabfiles-py-parse-mountinfo
++++ b/tests/expected/libmount/tabfiles-py-parse-mountinfo
+@@ -351,17 +351,6 @@ id: 47
+ parent: 20
+ devno: 0:38
+ ------ fs:
+-source: /fooooo
+-target: /mnt/foo
+-fstype: bar
+-optstr: rw,relatime
+-VFS-optstr: rw,relatime
+-FS-opstr: rw
+-root: /
+-id: 48
+-parent: 20
+-devno: 0:39
+------- fs:
+ source: tmpfs
+ target: /mnt/test/foo bar
+ fstype: tmpfs
+--- a/tests/ts/findmnt/files/mountinfo
++++ b/tests/ts/findmnt/files/mountinfo
+@@ -30,4 +30,3 @@
+ 44 41 0:36 / /home/kzak/.gvfs rw,nosuid,nodev,relatime - fuse.gvfs-fuse-daemon gvfs-fuse-daemon rw,user_id=500,group_id=500
+ 45 20 0:37 / /var/lib/nfs/rpc_pipefs rw,relatime - rpc_pipefs sunrpc rw
+ 47 20 0:38 / /mnt/sounds rw,relatime - cifs //foo.home/bar/ rw,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+-48 20 0:39 / /mnt/foo\040(deleted) rw,relatime - bar /fooooo rw
+--- a/tests/ts/findmnt/files/mountinfo-nonroot
++++ b/tests/ts/findmnt/files/mountinfo-nonroot
+@@ -29,4 +29,3 @@
+ 44 41 0:36 / /home/kzak/.gvfs rw,nosuid,nodev,relatime - fuse.gvfs-fuse-daemon gvfs-fuse-daemon rw,user_id=500,group_id=500
+ 45 20 0:37 / /var/lib/nfs/rpc_pipefs rw,relatime - rpc_pipefs sunrpc rw
+ 47 20 0:38 / /mnt/sounds rw,relatime - cifs //foo.home/bar/ rw,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+-48 20 0:39 / /mnt/foo\040(deleted) rw,relatime - bar /fooooo rw
+--- a/tests/ts/libmount/files/mountinfo
++++ b/tests/ts/libmount/files/mountinfo
+@@ -30,5 +30,4 @@
+ 44 41 0:36 / /home/kzak/.gvfs rw,nosuid,nodev,relatime - fuse.gvfs-fuse-daemon gvfs-fuse-daemon rw,user_id=500,group_id=500
+ 45 20 0:37 / /var/lib/nfs/rpc_pipefs rw,relatime - rpc_pipefs sunrpc rw
+ 47 20 0:38 / /mnt/sounds rw,relatime - cifs //foo.home/bar/ rw,unc=\\foo.home\bar,username=kzak,domain=SRGROUP,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.111.1,posixpaths,serverino,acl,rsize=16384,wsize=57344
+-48 20 0:39 / /mnt/foo\040(deleted) rw,relatime - bar /fooooo rw
+ 49 20 0:56 / /mnt/test/foo bar rw,relatime shared:323 - tmpfs tmpfs rw
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-27 18:41:03 +0000