VULNERABILITY DETAILS
This issue looks like the same as Issue 737033 which was addressed in https://pdfium.googlesource.com/pdfium/+/c2a68df83faee582f0d6741f05116505b72b9d5d%5E%21/#F0

In function sycc422_to_rgb of file fx_codec_jpx_opj, we try to use FX_Free to free heap memory which was allocated by fucntion opj_calloc. Here FX_Free redirects to pdfium::base::PartitionFree and opj_calloc redirects to calloc.

static void sycc422_to_rgb(opj_image_t* img) {
  // skipped...
  
  FX_Free(img->comps[0].data);      // --> pdfium::base::PartitionFree
  img->comps[0].data = d0;
  FX_Free(img->comps[1].data);      // --> pdfium::base::PartitionFree
  img->comps[1].data = d1;
  FX_Free(img->comps[2].data);      // --> pdfium::base::PartitionFree
  img->comps[2].data = d2;
  
  // skipped...
}

------------------
Debugging Logs
------------------
(2804.e60): Access violation - code c0000005 (!!! second chance !!!)
eax=08200000 ebx=082beff0 ecx=082d9000 edx=ffe00000 esi=082015e0 edi=0000002f
eip=003de3e5 esp=0029d220 ebp=0029d234 iopl=0         nv up ei pl nz na po nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00010202
pdfium_test_exe!FX_Free+0x51:
003de3e5 0fb74610        movzx   eax,word ptr [esi+10h] ds:002b:082015f0=????

0:000> !heap -p -a esi+10
    address 082015f0 found in
    _DPH_HEAP_ROOT @ 2a1000
    in busy allocation (  DPH_HEAP_BLOCK:         UserAddr         UserSize -         VirtAddr         VirtSize)
                                 8170034:          8200ec0              140 -          8200000             2000
    58478e89 verifier!AVrfDebugPageHeapAllocate+0x00000229
    77410f3e ntdll!RtlDebugAllocateHeap+0x00000030
    773cab47 ntdll!RtlpAllocateHeap+0x000000c4
    77373431 ntdll!RtlAllocateHeap+0x0000023a
    00513d21 pdfium_test_exe!_calloc_base+0x00000047 [d:\rs1\minkernel\crts\ucrt\src\appcrt\heap\calloc_base.cpp @ 38]
    0047ef1d pdfium_test_exe!opj_tcd_code_block_dec_allocate+0x00000036 [third_party\libopenjpeg20\tcd.c @ 1134]
    0047ff51 pdfium_test_exe!opj_tcd_init_decode_tile+0x00000957 [third_party\libopenjpeg20\tcd.c @ 1070]
    0047af8c pdfium_test_exe!opj_j2k_read_tile_header+0x0000047c [third_party\libopenjpeg20\j2k.c @ 8034]
    004792c7 pdfium_test_exe!opj_j2k_decode_tiles+0x00000137 [third_party\libopenjpeg20\j2k.c @ 9600]
    004798d9 pdfium_test_exe!opj_j2k_exec+0x00000032 [third_party\libopenjpeg20\j2k.c @ 7304]
    00478d5e pdfium_test_exe!opj_j2k_decode+0x0000004e [third_party\libopenjpeg20\j2k.c @ 9828]
    00475b69 pdfium_test_exe!opj_decode+0x00000026 [third_party\libopenjpeg20\openjpeg.c @ 412]
    00466236 pdfium_test_exe!CJPX_Decoder::Init+0x00000183 [core\fxcodec\codec\fx_codec_jpx_opj.cpp @ 748]
    00465cce pdfium_test_exe!CCodec_JpxModule::CreateDecoder+0x0000002b [core\fxcodec\codec\fx_codec_jpx_opj.cpp @ 879]
    0042f73c pdfium_test_exe!CPDF_DIBSource::LoadJpxBitmap+0x0000004f [core\fpdfapi\render\cpdf_dibsource.cpp @ 633]
    0042e164 pdfium_test_exe!CPDF_DIBSource::CreateDecoder+0x00000052 [core\fpdfapi\render\cpdf_dibsource.cpp @ 511]
    0042fefa pdfium_test_exe!CPDF_DIBSource::StartLoadDIBSource+0x00000176 [core\fpdfapi\render\cpdf_dibsource.cpp @ 288]
    00435a46 pdfium_test_exe!CPDF_ImageCacheEntry::StartGetCachedBitmap+0x0000008b [core\fpdfapi\render\cpdf_imagecacheentry.cpp @ 71]
    00419d45 pdfium_test_exe!CPDF_PageRenderCache::StartGetCachedBitmap+0x00000082 [core\fpdfapi\render\cpdf_pagerendercache.cpp @ 97]
    00443224 pdfium_test_exe!CPDF_ImageLoader::Start+0x0000003a [core\fpdfapi\render\cpdf_imageloader.cpp @ 35]
    0043a94c pdfium_test_exe!CPDF_ImageRenderer::StartLoadDIBSource+0x00000055 [core\fpdfapi\render\cpdf_imagerenderer.cpp @ 62]
    0043a34d pdfium_test_exe!CPDF_ImageRenderer::Start+0x00000079 [core\fpdfapi\render\cpdf_imagerenderer.cpp @ 181]
    0041d718 pdfium_test_exe!CPDF_RenderStatus::ContinueSingleObject+0x000000ab [core\fpdfapi\render\cpdf_renderstatus.cpp @ 1131]
    004082a6 pdfium_test_exe!CPDF_ProgressiveRenderer::Continue+0x000001b9 [core\fpdfapi\render\cpdf_progressiverenderer.cpp @ 81]
    003ded65 pdfium_test_exe!`anonymous namespace'::RenderPageImpl+0x000001ef [fpdfsdk\fpdfview.cpp @ 128]
    003de38b pdfium_test_exe!FPDF_RenderPage_Retail+0x00000058 [fpdfsdk\fpdfview.cpp @ 1240]
    003e2628 pdfium_test_exe!FPDF_RenderPageBitmap_Start+0x000000df [fpdfsdk\fpdf_progressive.cpp @ 67]
    003d433b pdfium_test_exe!`anonymous namespace'::RenderPage+0x000001aa [samples\pdfium_test.cc @ 1259]
    003d4824 pdfium_test_exe!`anonymous namespace'::RenderPdf+0x0000027b [samples\pdfium_test.cc @ 1455]
    003da90d pdfium_test_exe!main+0x00000373 [samples\pdfium_test.cc @ 1616]
    0050327b pdfium_test_exe!__scrt_common_main_seh+0x000000f9 [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl @ 253]
    76c1336a kernel32!BaseThreadInitThunk+0x0000000e


VERSION
Chrome Version: latest pdfium
Operating System: All

REPRODUCTION CASE
The proof-of-concept file was attached.

FOR CRASHES, PLEASE INCLUDE THE FOLLOWING ADDITIONAL INFORMATION
Type of crash: [tab, browser, etc.]
Crash State: [see link above: stack trace, registers, exception record]
Client ID (if relevant): [see link above]