Fix: HBO in icMemDump()

[ChrisCoxArt]

Fixes #674

Pull Request Checklist

• Have you followed the guidelines in Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same change?
• Have you built your Pull Request locally with the Build Instructions?
• Have you added or updated relevant tests?
• Have you added or updated relevant docs?

[xsscx]

Maintainer Review

2026-03-15 01:44:54 UTC

Repro

mkdir pr-689
cd pr-689
git clone https://github.com/InternationalColorConsortium/iccDEV.git
cd iccDEV/Build
git fetch origin pull/689/head:pr-689
git checkout pr-689
export CXX=clang++ && export CXXFLAGS="-fsanitize=address,undefined -fno-omit-frame-pointer -g -O1 -fprofile-arcs -ftest-coverage" && export LDFLAGS="-fsanitize=address,undefined -fprofile-arcs" && cmake Cmake -DCMAKE_BUILD_TYPE=Debug -DENABLE_ASAN=ON -DENABLE_UBSAN=ON -DENABLE_COVERAGE=ON
make -j$(nproc)
        cd ../Testing/
        echo "=== Updating PATH ==="
         for d in ../Build/Tools/*; do
          [ -d "$d" ] && export PATH="$(realpath "$d"):$PATH"
         done
wget https://github.com/xsscx/fuzz/raw/refs/heads/master/graphics/icc/hbo-icMemDump-IccUtil_cpp-Line1002.icc
ASAN_OPTIONS=print_scariness=1:halt_on_error=0:abort_on_error=0:print_full_stacktrace=1:detect_leaks=0 iccDumpProfile -v 100 hbo-icMemDump-IccUtil_cpp-Line1002.icc ALL

PR Application Output

[2026-03-15 01:40:52 UTC] ~/pr-689/iccDEV/Testing (pr-689)$ ASAN_OPTIONS=print_scariness=1:halt_on_error=0:abort_on_error=0:print_full_stacktrace=1:detect_leaks=0 iccDumpProfile -v 100 hbo-icMemDump-IccUtil_cpp-Line1002.icc ALL
Built with IccProfLib version 2.3.1.5

Profile:            'hbo-icMemDump-IccUtil_cpp-Line1002.icc'
Profile ID:         00000000000000000000004900000000
Size:               720 (0x2d0) bytes

Header
------
Attributes:         Reflective | Glossy
Cmm:                Unknown NULL
Creation Date:      0/0/0 (M/D/Y)  00:00:00
Creator:            NULL
Device Manufacturer:NULL
Data Color Space:   RgbData
Flags:              EmbeddedProfileFalse | UseAnywhere
PCS Color Space:    NoData
Platform:           Unknown
Rendering Intent:   Perceptual
Profile Class:      ColorEncodingClass
Profile SubClass:   Not Defined
Version:            5.00
Illuminant:         X=0.0005, Y=0.0000, Z=0.0000
Spectral PCS:       NoSpectralData
Spectral PCS Range: start=0.0nm, end=0.2nm, steps=0
BiSpectral Range:   Not Defined
MCS Color Space:    Not Defined

Profile Tags (3)
------------
                         Tag    ID      Offset      Size             Pad
                        ----  ------    ------      ----             ---
            referenceNameTag  'rfnm'       168        20               0
           colorSpaceNameTag  'csnm'       188         7               9
      colorEncodingParamsTag  'cept'       204       516               0


Contents of referenceNameTag tag ('rfnm' = 72666E6D)
Type: utf16Type ('ut16' = 75743136)
UTF16 Length = 5 bytes
"䥓传㈲"

Contents of colorSpaceNameTag tag ('csnm' = 63736E6D)
Type: Unknown NULL (NULL)
Unknown Tag Type of 3 Bytes.

Data Follows:
00000000: 00 00 00                                         ...

Contents of colorEncodingParamsTag tag ('cept' = 63657074)
Type: Unknown NULL (NULL)
Unknown Tag Type of 512 Bytes.

Data Follows:
00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000020: 00 00 00 00 00 00 00 00 00 00 00 30 32 38 2D 31  ...........028-1
00000030: 00 38 66 74 75 00 00 00 00 62 67 2D 73 52 47 42  .8ftu....bg-sRGB
00000040: 00 74 73 74 72 00 00 00 00 63 65 70 74 00 00 00  .tstr....cept...
00000050: 00 00 51 10 00 0A CE DC 0F 72 58 59 5A 00 00 00  ..Q......rXYZ...
00000060: C4 00 00 00 14 67 58 59 5A 00 00 00 D8 00 00 00  .....gXYZ.......
00000070: EC 9D A7 A6 A5 FF FF F6 EC 00 00 00 14 66 75 6E  .............fun
00000080: 63 00 00 01 00 00 00 00 70 77 6C 75 6D 00 00 01  c.......pwlum...
00000090: 70 00 00 00 0C 77 58 59 5A 00 00 01 7C 00 00 00  p....wXYZ...|...
000000A0: 0E 65 52 6E 67 00 00 01 8C 00 00 00 10 62 69 74  .eRng........bit
000000B0: 73 00 00 01 9C 00 00 0B 69 6D 00 00 73 74 00 01  s.......im..st..
000000C0: A8 00 00 00 0C 69 62 6B 67 00 00 01 B4 00 00 00  .....ibkg.......
000000D0: 0C 73 72 6E 64 00 00 01 C0 00 00 00 0C 61 69 6C  .srnd........ail
000000E0: 6D 00 00 01 CC 00 00 00 0C 6D 77 70 6C 00 00 01  m........mwpl...
000000F0: D8 00 00 00 0C 6D 77 70 63 00 00 01 E4 00 00 00  .....mwpc.......
00000100: 10 6D 62 70 63 00 00 01 F4 00 00 00 10 66 6C 30  .mbpc........fl0
00000110: 37 00 00 00 00 3F 23 D7 0A 3E A8 F5 C3 3C F5 C2  7....?#..>...<..
00000120: 8F 66 6C 33 32 00 00 00 00 3E 99 99 9A 3F 19 99  .fl32....>...?..
00000130: 9A 3D CC CC CD 66 6C 31 39 60 00 00 00 3E 19 99  .=...fl19`...>..
00000140: 9A 3D 75 C2 8F 3F 4A 3D 71 63 75 72 66 00 00 00  .=u..?J=qcurf...
00000150: 00 00 03 00 00 BB 4D 2E 1C 3B 4D 2E 1C 70 61 72  ......M..;M..par
00000160: 66 00 00 00 00 00 03 00 00 3E D5 55 55 BF 87 0A  f........>.UU...
00000170: 3D BF 80 00 00 00 00 00 00 00 00 00 00 70 61 72  =............par
00000180: 66 00 00 00 00 00 00 00 00 3F 80 00 00 41 4E B8  f........?...AN.
00000190: 52 00 00 00 00 00 00 00 00 70 61 72 66 00 00 00  R........parf...
000001A0: 00 00 03 00 00 3E D5 55 55 3F 87 0A 3D 3F 80 00  .....>.UU?..=?..
000001B0: 00 00 00 00 00 00 00 00 00 00 00 00 03 72 72 00  .............rr.
000001C0: 00 00 00 6D 70 65 74 00 00 00 00 00 03 00 03 00  ...mpet.........
000001D0: 00 00 01 00 00 00 18 00 00 0D 18 63 61 6C 63 00  ...........calc.
000001E0: 00 00 00 00 03 00 03 00 00 00 0B 00 00 00 70 00  ..............p.
000001F0: 00 09 0C 00 00 09 0C 00 00 00 9C 00 00 09 A8 00  ................

Validation Report
-----------------
Profile violates ICC specification for version 5.00

NonCompliant! - Bad Header File Size
NonCompliant! - Bad Profile ID
NonCompliant! -  - Encoding Class has non-zero Header data were zeros are required!
NonCompliant! - referenceNameTag utf16Type: Invalid tag type (Might be critical!).
NonCompliant! - colorSpaceNameTag Unknown NULL: Invalid tag type (Might be critical!).
NonCompliant! - colorEncodingParamsTag Unknown NULL: Invalid tag type (Might be critical!).
Warning! - Tag colorSpaceNameTag (size 7) is followed by 8 unnecessary additional bytes (from offset 196).