diff options
Diffstat (limited to '')
| -rw-r--r-- | debian/patches/0074-video-readers-jpeg-Do-not-reallocate-a-given-huff-ta.patch | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/debian/patches/0074-video-readers-jpeg-Do-not-reallocate-a-given-huff-ta.patch b/debian/patches/0074-video-readers-jpeg-Do-not-reallocate-a-given-huff-ta.patch new file mode 100644 index 0000000..c4228f9 --- /dev/null +++ b/debian/patches/0074-video-readers-jpeg-Do-not-reallocate-a-given-huff-ta.patch @@ -0,0 +1,28 @@ +From 610c5986058312cfc0375fc04f88fcc116bdd043 Mon Sep 17 00:00:00 2001 +From: Daniel Axtens <dja@axtens.net> +Date: Mon, 28 Jun 2021 14:16:58 +1000 +Subject: video/readers/jpeg: Do not reallocate a given huff table + +Fix a memory leak where an invalid file could cause us to reallocate +memory for a huffman table we had already allocated memory for. + +Signed-off-by: Daniel Axtens <dja@axtens.net> +Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> +--- + grub-core/video/readers/jpeg.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/grub-core/video/readers/jpeg.c b/grub-core/video/readers/jpeg.c +index 10225abd5..caa211f06 100644 +--- a/grub-core/video/readers/jpeg.c ++++ b/grub-core/video/readers/jpeg.c +@@ -245,6 +245,9 @@ grub_jpeg_decode_huff_table (struct grub_jpeg_data *data) + n += count[i]; + + id += ac * 2; ++ if (data->huff_value[id] != NULL) ++ return grub_error (GRUB_ERR_BAD_FILE_TYPE, ++ "jpeg: attempt to reallocate huffman table"); + data->huff_value[id] = grub_malloc (n); + if (grub_errno) + return grub_errno; |