tools/e2fsprogs: update to 1.46.6
[openwrt/openwrt.git] / tools / e2fsprogs / patches / 004-CVE-2022-1304-libext2fs-add-sanity-check-to-extent-manipulation.patch
diff --git a/tools/e2fsprogs/patches/004-CVE-2022-1304-libext2fs-add-sanity-check-to-extent-manipulation.patch b/tools/e2fsprogs/patches/004-CVE-2022-1304-libext2fs-add-sanity-check-to-extent-manipulation.patch
deleted file mode 100644 (file)
index e5a7616..0000000
+++ /dev/null
@@ -1,50 +0,0 @@
-From ab51d587bb9b229b1fade1afd02e1574c1ba5c76 Mon Sep 17 00:00:00 2001
-From: Lukas Czerner <lczerner@redhat.com>
-Date: Thu, 21 Apr 2022 19:31:48 +0200
-Subject: libext2fs: add sanity check to extent manipulation
-
-It is possible to have a corrupted extent tree in such a way that a leaf
-node contains zero extents in it. Currently if that happens and we try
-to traverse the tree we can end up accessing wrong data, or possibly
-even uninitialized memory. Make sure we don't do that.
-
-Additionally make sure that we have a sane number of bytes passed to
-memmove() in ext2fs_extent_delete().
-
-Note that e2fsck is currently unable to spot and fix such corruption in
-pass1.
-
-Signed-off-by: Lukas Czerner <lczerner@redhat.com>
-Reported-by: Nils Bars <nils_bars@t-online.de>
-Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=2068113
-Addresses: CVE-2022-1304
-Addresses-Debian-Bug: #1010263
-Signed-off-by: Theodore Ts'o <tytso@mit.edu>
----
- lib/ext2fs/extent.c | 8 ++++++++
- 1 file changed, 8 insertions(+)
-
---- a/lib/ext2fs/extent.c
-+++ b/lib/ext2fs/extent.c
-@@ -495,6 +495,10 @@ retry:
-                       ext2fs_le16_to_cpu(eh->eh_entries);
-               newpath->max_entries = ext2fs_le16_to_cpu(eh->eh_max);
-+              /* Make sure there is at least one extent present */
-+              if (newpath->left <= 0)
-+                      return EXT2_ET_EXTENT_NO_DOWN;
-+
-               if (path->left > 0) {
-                       ix++;
-                       newpath->end_blk = ext2fs_le32_to_cpu(ix->ei_block);
-@@ -1630,6 +1634,10 @@ errcode_t ext2fs_extent_delete(ext2_exte
-       cp = path->curr;
-+      /* Sanity check before memmove() */
-+      if (path->left < 0)
-+              return EXT2_ET_EXTENT_LEAF_BAD;
-+
-       if (path->left) {
-               memmove(cp, cp + sizeof(struct ext3_extent_idx),
-                       path->left * sizeof(struct ext3_extent_idx));