From: =?utf-8?q?Bernhard_=C3=9Cbelacker?= Date: Sat, 27 Feb 2021 19:05:28 +0100 Subject: Workaround: Add 32 bytes to allocation Compressor Bug-Debian: https://bugs.debian.org/972339 Bug-Ubuntu: https://launchpad.net/bugs/1901209 ==183233== Invalid read of size 1 ==183233== at 0x11465A: Mode9::Process(RASTERDATA*) (Mode9.cpp:215) ==183233== by 0x11EDA4: Process (Pipeline.cpp:72) ==183233== by 0x11EDA4: Pipeline::Execute(RASTERDATA*) (Pipeline.cpp:79) ==183233== by 0x11EDDF: Pipeline::Execute(RASTERDATA*) (Pipeline.cpp:83) ==183233== by 0x11EDDF: Pipeline::Execute(RASTERDATA*) (Pipeline.cpp:83) ==183233== by 0x112677: HPCupsFilter::processRasterData(_cups_raster_s*) (HPCupsFilter.cpp:779) ==183233== by 0x112DE8: HPCupsFilter::StartPrintJob(int, char**) (HPCupsFilter.cpp:597) ==183233== by 0x4C17D09: (below main) (libc-start.c:308) ==183233== Address 0x5a8f0a1 is 0 bytes after a block of size 3,025 alloc'd ==183233== at 0x483950F: operator new[](unsigned long) (vg_replace_malloc.c:431) ==183233== by 0x113AE6: Compressor::Compressor(unsigned int, bool) (Compressor.cpp:44) ==183233== by 0x114AEB: Mode9::Mode9(unsigned int, bool) (Mode9.cpp:34) ==183233== by 0x1181C1: Pcl3::Configure(Pipeline**) (Pcl3.cpp:95) ==183233== by 0x11EA30: Job::Configure() (Job.cpp:248) ==183233== by 0x11EB67: Job::Init(SystemServices*, JobAttributes_s*, Encapsulator*) (Job.cpp:63) ==183233== by 0x111A35: HPCupsFilter::startPage(cups_page_header2_s*) (HPCupsFilter.cpp:481) ==183233== by 0x112792: HPCupsFilter::processRasterData(_cups_raster_s*) (HPCupsFilter.cpp:668) ==183233== by 0x112DE8: HPCupsFilter::StartPrintJob(int, char**) (HPCupsFilter.cpp:597) ==183233== by 0x4C17D09: (below main) (libc-start.c:308) --- prnt/hpcups/Compressor.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/prnt/hpcups/Compressor.cpp b/prnt/hpcups/Compressor.cpp index a29955e..77f6fab 100644 --- a/prnt/hpcups/Compressor.cpp +++ b/prnt/hpcups/Compressor.cpp @@ -41,8 +41,9 @@ Compressor::Compressor (unsigned int RasterSize, bool useseed) : SeedRow(NULL), if (!UseSeedRow) return; - SeedRow = (BYTE *) new BYTE[RasterSize]; + SeedRow = (BYTE *) new BYTE[RasterSize + 32]; CNEWCHECK(SeedRow); + memset(SeedRow, 0, RasterSize + 32); } Compressor::~Compressor()