import from Fedora

1 files changed, 80 insertions, 0 deletions

diff --git a/2cd30c2b06ce332dede81cccad8b334cde997281.patch b/2cd30c2b06ce332dede81cccad8b334cde997281.patch
new file mode 100644
index 0000000..dd9183d
--- /dev/null
+++ b/2cd30c2b06ce332dede81cccad8b334cde997281.patch
@@ -0,0 +1,80 @@
+From 2cd30c2b06ce332dede81cccad8b334cde997281 Mon Sep 17 00:00:00 2001
+From: Even Rouault <even.rouault@spatialys.com>
+Date: Thu, 17 Aug 2017 11:47:40 +0200
+Subject: [PATCH] tgatoimage(): avoid excessive memory allocation attempt, and
+ fixes unaligned load (#995)
+
+---
+ src/bin/jp2/convert.c | 39 +++++++++++++++++++++++++++------------
+ 1 file changed, 27 insertions(+), 12 deletions(-)
+
+diff --git a/src/bin/jp2/convert.c b/src/bin/jp2/convert.c
+index a4eb81f6a..73dfc8d5f 100644
+--- a/src/bin/jp2/convert.c
++++ b/src/bin/jp2/convert.c
+@@ -580,13 +580,10 @@ struct tga_header {
+ };
+ #endif /* INFORMATION_ONLY */
+ 
+-static unsigned short get_ushort(const unsigned char *data)
++/* Returns a ushort from a little-endian serialized value */
++static unsigned short get_tga_ushort(const unsigned char *data)
+ {
+-    unsigned short val = *(const unsigned short *)data;
+-#ifdef OPJ_BIG_ENDIAN
+-    val = ((val & 0xffU) << 8) | (val >> 8);
+-#endif
+-    return val;
++    return data[0] | (data[1] << 8);
+ }
+ 
+ #define TGA_HEADER_SIZE 18
+@@ -613,17 +610,17 @@ static int tga_readheader(FILE *fp, unsigned int *bits_per_pixel,
+     id_len = tga[0];
+     /*cmap_type = tga[1];*/
+     image_type = tga[2];
+-    /*cmap_index = get_ushort(&tga[3]);*/
+-    cmap_len = get_ushort(&tga[5]);
++    /*cmap_index = get_tga_ushort(&tga[3]);*/
++    cmap_len = get_tga_ushort(&tga[5]);
+     cmap_entry_size = tga[7];
+ 
+ 
+ #if 0
+-    x_origin = get_ushort(&tga[8]);
+-    y_origin = get_ushort(&tga[10]);
++    x_origin = get_tga_ushort(&tga[8]);
++    y_origin = get_tga_ushort(&tga[10]);
+ #endif
+-    image_w = get_ushort(&tga[12]);
+-    image_h = get_ushort(&tga[14]);
++    image_w = get_tga_ushort(&tga[12]);
++    image_h = get_tga_ushort(&tga[14]);
+     pixel_depth = tga[16];
+     image_desc  = tga[17];
+ 
+@@ -817,6 +814,24 @@ opj_image_t* tgatoimage(const char *filename, opj_cparameters_t *parameters)
+         color_space = OPJ_CLRSPC_SRGB;
+     }
+ 
++    /* If the declared file size is > 10 MB, check that the file is big */
++    /* enough to avoid excessive memory allocations */
++    if (image_height != 0 && image_width > 10000000 / image_height / numcomps) {
++        char ch;
++        OPJ_UINT64 expected_file_size =
++            (OPJ_UINT64)image_width * image_height * numcomps;
++        long curpos = ftell(f);
++        if (expected_file_size > (OPJ_UINT64)INT_MAX) {
++            expected_file_size = (OPJ_UINT64)INT_MAX;
++        }
++        fseek(f, (long)expected_file_size - 1, SEEK_SET);
++        if (fread(&ch, 1, 1, f) != 1) {
++            fclose(f);
++            return NULL;
++        }
++        fseek(f, curpos, SEEK_SET);
++    }
++
+     subsampling_dx = parameters->subsampling_dx;
+     subsampling_dy = parameters->subsampling_dy;
+