diff options
Diffstat (limited to 'meta/recipes-devtools/e2fsprogs/e2fsprogs/CVE-2022-1304.patch')
-rw-r--r-- | meta/recipes-devtools/e2fsprogs/e2fsprogs/CVE-2022-1304.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/meta/recipes-devtools/e2fsprogs/e2fsprogs/CVE-2022-1304.patch b/meta/recipes-devtools/e2fsprogs/e2fsprogs/CVE-2022-1304.patch new file mode 100644 index 0000000000..34e2567b25 --- /dev/null +++ b/meta/recipes-devtools/e2fsprogs/e2fsprogs/CVE-2022-1304.patch | |||
@@ -0,0 +1,42 @@ | |||
1 | From a66071ed6a0d1fa666d22dcb78fa6fcb3bf22df3 Mon Sep 17 00:00:00 2001 | ||
2 | From: Hitendra Prajapati <hprajapati@mvista.com> | ||
3 | Date: Fri, 27 May 2022 14:01:50 +0530 | ||
4 | Subject: [PATCH] CVE-2022-1304 | ||
5 | |||
6 | Upstream-Status: Backport [https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git/commit/?h=maint&id=ab51d587bb9b229b1fade1afd02e1574c1ba5c76] | ||
7 | CVE: CVE-2022-1304 | ||
8 | Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com> | ||
9 | |||
10 | --- | ||
11 | lib/ext2fs/extent.c | 8 ++++++++ | ||
12 | 1 file changed, 8 insertions(+) | ||
13 | |||
14 | diff --git a/lib/ext2fs/extent.c b/lib/ext2fs/extent.c | ||
15 | index ac3dbfec9..a1b1905cd 100644 | ||
16 | --- a/lib/ext2fs/extent.c | ||
17 | +++ b/lib/ext2fs/extent.c | ||
18 | @@ -495,6 +495,10 @@ retry: | ||
19 | ext2fs_le16_to_cpu(eh->eh_entries); | ||
20 | newpath->max_entries = ext2fs_le16_to_cpu(eh->eh_max); | ||
21 | |||
22 | + /* Make sure there is at least one extent present */ | ||
23 | + if (newpath->left <= 0) | ||
24 | + return EXT2_ET_EXTENT_NO_DOWN; | ||
25 | + | ||
26 | if (path->left > 0) { | ||
27 | ix++; | ||
28 | newpath->end_blk = ext2fs_le32_to_cpu(ix->ei_block); | ||
29 | @@ -1630,6 +1634,10 @@ errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags) | ||
30 | |||
31 | cp = path->curr; | ||
32 | |||
33 | + /* Sanity check before memmove() */ | ||
34 | + if (path->left < 0) | ||
35 | + return EXT2_ET_EXTENT_LEAF_BAD; | ||
36 | + | ||
37 | if (path->left) { | ||
38 | memmove(cp, cp + sizeof(struct ext3_extent_idx), | ||
39 | path->left * sizeof(struct ext3_extent_idx)); | ||
40 | -- | ||
41 | 2.25.1 | ||
42 | |||