Machine : Ubuntu 16.04.3 LTS
OpenCV version: 4.1.2-pre
OpenCV VCS version: 4.1.1-267-ga74fe2e
Build type: Release
Compiler: /usr/bin/clang++  (ver 3.8.0)

fuzzer@fuzzer:~/victim/opencv_build/opencv/build/bin$ ./opencv_test_imgproc
CTEST_FULL_OUTPUT
OpenCV version: 4.1.2-pre
OpenCV VCS version: 4.1.1-267-ga74fe2e
Build type: Release
Compiler: /usr/bin/clang++  (ver 3.8.0)
Parallel framework: pthreads
CPU features: SSE SSE2 SSE3 *SSE4.1 *SSE4.2 *FP16 *AVX *AVX2
Intel(R) IPP version: ippIP AVX2 (l9) 2019.0.0 Gold (-) Jul 24 2018
OpenCL is disabled
TEST: Skip tests with tags: 'mem_6gb', 'verylong'
[==========] Running 9941 tests from 191 test cases.
[----------] Global test environment set-up.
[----------] 1 test from Imgproc_MatchTemplate
[ RUN      ] Imgproc_MatchTemplate.accuracy

//SNIPPED//

[       OK ] OCL_ImgprocPyr/PyrDown.Mat/93 (1 ms)
[ RUN      ] OCL_ImgprocPyr/PyrDown.Mat/94, where GetParam() = (CV_32F, Channels(4), BORDER_REFLECT_101, false)
[       OK ] OCL_ImgprocPyr/PyrDown.Mat/94 (0 ms)
[ RUN      ] OCL_ImgprocPyr/PyrDown.Mat/95, where GetParam() = (CV_32F, Channels(4), BORDER_REFLECT_101, true)
[       OK ] OCL_ImgprocPyr/PyrDown.Mat/95 (1 ms)
[ RUN      ] OCL_ImgprocPyr/PyrDown.Mat/96, where GetParam() = (CV_64F, Channels(1), BORDER_REPLICATE, false)
=================================================================
==17377==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61e000758e5f at pc 0x7ff4bf3e7c29 bp 0x7ffec07d8bd0 sp 0x7ffec07d8bc8
READ of size 16 at 0x61e000758e5f thread T0
    #0 0x7ff4bf3e7c28  (/home/fuzzer/victim/opencv_build/opencv/build/lib/libopencv_imgproc.so.4.1+0x2b8c28)
    #1 0x7ff4bf3d0102  (/home/fuzzer/victim/opencv_build/opencv/build/lib/libopencv_imgproc.so.4.1+0x2a1102)
    #2 0xafdb27  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xafdb27)
    #3 0xafd422  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xafd422)
    #4 0xed92f6  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xed92f6)
    #5 0xed9057  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xed9057)
    #6 0xedce67  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xedce67)
    #7 0xedea49  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xedea49)
    #8 0xf0582c  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xf0582c)
    #9 0xf04546  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xf04546)
    #10 0xf04006  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xf04006)
    #11 0xe10b54  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xe10b54)
    #12 0x7ff4bc9e382f  (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
    #13 0x4d0108  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0x4d0108)

0x61e000758e5f is located 7 bytes to the right of 2520-byte region [0x61e000758480,0x61e000758e58)
allocated by thread T0 here:
    #0 0x570980  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0x570980)
    #1 0x7ff4bd94c40d  (/home/fuzzer/victim/opencv_build/opencv/build/lib/libopencv_core.so.4.1+0x62740d)
    #2 0x7ff4bd69898b  (/home/fuzzer/victim/opencv_build/opencv/build/lib/libopencv_core.so.4.1+0x37398b)
    #3 0x7ff4bd6806b1  (/home/fuzzer/victim/opencv_build/opencv/build/lib/libopencv_core.so.4.1+0x35b6b1)
    #4 0xe316b1  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xe316b1)
    #5 0xac05e3  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xac05e3)
    #6 0xafe2de  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xafe2de)
    #7 0xafda15  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xafda15)
    #8 0xafd422  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xafd422)
    #9 0xed92f6  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xed92f6)
    #10 0xed9057  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xed9057)
    #11 0xedea49  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xedea49)
    #12 0xf0582c  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xf0582c)
    #13 0xf04546  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xf04546)
    #14 0xf04006  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xf04006)
    #15 0xe10b54  (/home/fuzzer/victim/opencv_build/opencv/build/bin/opencv_test_imgproc+0xe10b54)
    #16 0x7ff4bc9e382f  (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)

SUMMARY: AddressSanitizer: heap-buffer-overflow (/home/fuzzer/victim/opencv_build/opencv/build/lib/libopencv_imgproc.so.4.1+0x2b8c28)
Shadow bytes around the buggy address:
  0x0c3c800e3170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c3c800e3180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c3c800e3190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c3c800e31a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c3c800e31b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c3c800e31c0: 00 00 00 00 00 00 00 00 00 00 00[fa]fa fa fa fa
  0x0c3c800e31d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c3c800e31e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c3c800e31f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c3c800e3200: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c3c800e3210: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Heap right redzone:      fb
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack partial redzone:   f4
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==17377==ABORTING
fuzzer@fuzzer:~/victim/opencv_build/opencv/build/bin$