diff options
Diffstat (limited to 'poky/meta/recipes-graphics/freetype/freetype/CVE-2022-27404.patch')
| -rw-r--r-- | poky/meta/recipes-graphics/freetype/freetype/CVE-2022-27404.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/poky/meta/recipes-graphics/freetype/freetype/CVE-2022-27404.patch b/poky/meta/recipes-graphics/freetype/freetype/CVE-2022-27404.patch new file mode 100644 index 0000000000..3335fbda06 --- /dev/null +++ b/poky/meta/recipes-graphics/freetype/freetype/CVE-2022-27404.patch @@ -0,0 +1,48 @@ +From 53dfdcd8198d2b3201a23c4bad9190519ba918db Mon Sep 17 00:00:00 2001 +From: Werner Lemberg <wl@gnu.org> +Date: Thu, 17 Mar 2022 19:24:16 +0100 +Subject: [PATCH] [sfnt] Avoid invalid face index. + +Fixes #1138. + +* src/sfnt/sfobjs.c (sfnt_init_face), src/sfnt/sfwoff2.c (woff2_open_font): +Check `face_index` before decrementing. + +Upstream-Status: Backport +https://gitlab.freedesktop.org/freetype/freetype/-/commit/53dfdcd8198d2b3201a23c4bad9190519ba918db + +Signed-off-by: Davide Gardenal <davide.gardenal@huawei.com> +--- + src/sfnt/sfobjs.c | 2 +- + src/sfnt/sfwoff2.c | 2 +- + 2 files changed, 2 insertions(+), 2 deletions(-) + +diff --git a/src/sfnt/sfobjs.c b/src/sfnt/sfobjs.c +index f9d4d3858..9771c35df 100644 +--- a/src/sfnt/sfobjs.c ++++ b/src/sfnt/sfobjs.c +@@ -566,7 +566,7 @@ + face_index = FT_ABS( face_instance_index ) & 0xFFFF; + + /* value -(N+1) requests information on index N */ +- if ( face_instance_index < 0 ) ++ if ( face_instance_index < 0 && face_index > 0 ) + face_index--; + + if ( face_index >= face->ttc_header.count ) +diff --git a/src/sfnt/sfwoff2.c b/src/sfnt/sfwoff2.c +index cb1e0664a..165b875e5 100644 +--- a/src/sfnt/sfwoff2.c ++++ b/src/sfnt/sfwoff2.c +@@ -2085,7 +2085,7 @@ + /* Validate requested face index. */ + *num_faces = woff2.num_fonts; + /* value -(N+1) requests information on index N */ +- if ( *face_instance_index < 0 ) ++ if ( *face_instance_index < 0 && face_index > 0 ) + face_index--; + + if ( face_index >= woff2.num_fonts ) +-- +GitLab + |