From a0e31f12714ee0e23597e4376bf14ae77232a1d8 Mon Sep 17 00:00:00 2001
From: CoprDistGit <infra@openeuler.org>
Date: Mon, 5 Aug 2024 01:47:41 +0000
Subject: automatic import of dcraw

---
 dcraw-CVE-2018-19655.patch | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 dcraw-CVE-2018-19655.patch

(limited to 'dcraw-CVE-2018-19655.patch')

diff --git a/dcraw-CVE-2018-19655.patch b/dcraw-CVE-2018-19655.patch
new file mode 100644
index 0000000..1d0b024
--- /dev/null
+++ b/dcraw-CVE-2018-19655.patch
@@ -0,0 +1,39 @@
+Author: Filip Hroch <hroch@physics.muni.cz>
+Description: stack-based buffer overflow bug
+--- a/dcraw.c
++++ b/dcraw.c
+@@ -8345,9 +8345,15 @@
+ {
+   UINT64 bitbuf=0;
+   int vbits, col, i, c;
+-  ushort img[2][2064];
++  ushort *img;
+   double sum[]={0,0};
+ 
++#define IMG2D(row,col) \
++  img[(row)*width+(col)]
++
++  img = (ushort *) malloc(2*width*sizeof(ushort));
++  merror (img, "find_green()");
++
+   FORC(2) {
+     fseek (ifp, c ? off1:off0, SEEK_SET);
+     for (vbits=col=0; col < width; col++) {
+@@ -8356,13 +8362,14 @@
+ 	for (i=0; i < bite; i+=8)
+ 	  bitbuf |= (unsigned) (fgetc(ifp) << i);
+       }
+-      img[c][col] = bitbuf << (64-bps-vbits) >> (64-bps);
++      IMG2D(c,col) = bitbuf << (64-bps-vbits) >> (64-bps);
+     }
+   }
+   FORC(width-1) {
+-    sum[ c & 1] += ABS(img[0][c]-img[1][c+1]);
+-    sum[~c & 1] += ABS(img[1][c]-img[0][c+1]);
++    sum[ c & 1] += ABS(IMG2D(0,c)-IMG2D(1,c+1));
++    sum[~c & 1] += ABS(IMG2D(1,c)-IMG2D(0,c+1));
+   }
++  free(img);
+   return 100 * log(sum[0]/sum[1]);
+ }
+ 
-- 
cgit v1.2.3