diff options
Diffstat (limited to 'external')
| -rw-r--r-- | external/libjpeg-turbo/ubsan.patch | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/external/libjpeg-turbo/ubsan.patch b/external/libjpeg-turbo/ubsan.patch index 81ff148c57d6..33d3c15a8b3c 100644 --- a/external/libjpeg-turbo/ubsan.patch +++ b/external/libjpeg-turbo/ubsan.patch @@ -17,3 +17,23 @@ put_bits -= 8; } +--- jdarith.c ++++ jdarith.c +@@ -306,7 +306,7 @@ + while (m >>= 1) + if (arith_decode(cinfo, st)) v |= m; + v += 1; if (sign) v = -v; +- entropy->last_dc_val[ci] += v; ++ entropy->last_dc_val[ci] = (entropy->last_dc_val[ci] + v) & 0xffff; + } + + /* Scale and output the DC coefficient (assumes jpeg_natural_order[0]=0) */ +@@ -564,7 +564,7 @@ + while (m >>= 1) + if (arith_decode(cinfo, st)) v |= m; + v += 1; if (sign) v = -v; +- entropy->last_dc_val[ci] += v; ++ entropy->last_dc_val[ci] = (entropy->last_dc_val[ci] + v) & 0xffff; + } + + if (block) |