DynamoRIO/drmemory

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Memory Debugger for Windows, Linux, Mac, and Android

Stars: 2.7k
Forks: 290
Open beginner issues: 0
Indexed issues: 1k

Dominant language: C
License: No license data
Last GitHub push: Dec 12, 2025
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted good first issue
PR merge metrics: No merged PRs in 30d

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1043 open issues indexed

add fastpath for unaligned memory accesses Open

Migrated Priority-Medium

DynamoRIO/drmemory#186 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[windows] ensure large heap allocations are handled properly Open

Migrated OpSys-Windows Priority-Low

DynamoRIO/drmemory#187 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[windows] detect handle leaks Open

Migrated OpSys-Windows Priority-Low Type-Feature

DynamoRIO/drmemory#188 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[windows] handle NtSetContextThread Open

Migrated OpSys-Windows Priority-Low

DynamoRIO/drmemory#189 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
indirected code object has two strlen* targets: drmem replaces only one Open

Migrated Priority-Medium

DynamoRIO/drmemory#191 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
large symbol file support Open

Migrated Priority-Low Type-Feature

DynamoRIO/drmemory#192 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[win32] cs2bug std::string alloc callstack messed up Open

Migrated OpSys-Windows Priority-Medium

DynamoRIO/drmemory#193 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
add redzone on stack between each call frame Open

Migrated Priority-Low Type-Feature

DynamoRIO/drmemory#194 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
dynamically adjust from byte-to-byte to byte-to-2bit shadowing Open

Migrated Priority-Low Type-Feature

DynamoRIO/drmemory#195 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[x64] use file-based special shadow blocks to support swapping w/ non-special at same virt addr Open

Migrated Priority-Low Type-Feature

DynamoRIO/drmemory#196 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
fully intercept cygwin malloc: sbrk, initial heap walk Open

Migrated Priority-Medium

DynamoRIO/drmemory#197 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
use headers to determine padded size for outer malloc routines Open

Migrated Priority-Low

DynamoRIO/drmemory#198 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[windows] intercept _recalloc and _aligned_* malloc routines Open

Migrated OpSys-Windows Priority-Medium

DynamoRIO/drmemory#199 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ASSERT: RtlWalkHeap calls RtlFreeHeap: "syscall_while_native: using NtFreeVirtualMemory - maybe hooked?" Open

Migrated Priority-Low

DynamoRIO/drmemory#201 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
10K possible leaks on vortex Open

Migrated Priority-Low

DynamoRIO/drmemory#203 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[perf] vortex 2x as slow with "-vm_size 4M" Open

Migrated Priority-Low

DynamoRIO/drmemory#204 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ammp using un-accounted-for 130MB extra memory Open

Migrated Priority-Low

DynamoRIO/drmemory#206 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
use optionsx.h for parsing in frontend.c and for per-file options Open

Migrated Priority-Low

DynamoRIO/drmemory#207 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[perf] esp adjust hardcoded-delta fast handlers Open

Migrated Priority-Low

DynamoRIO/drmemory#208 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[heapstat] combine heapstat data for all child processes Open

Component-Heapstat Migrated Priority-Low Type-Feature

DynamoRIO/drmemory#209 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[heapstat] split heapstat data into malloc/calloc/realloc Open

Component-Heapstat Migrated Priority-Low

DynamoRIO/drmemory#210 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Dr. Heapstat tests of data output Open

Component-Heapstat Migrated Priority-Medium

DynamoRIO/drmemory#211 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Dr. HeapStat visualization tool isn't finished for Windows Open

Component-Heapstat Migrated OpSys-Windows Priority-Medium Type-Feature

DynamoRIO/drmemory#213 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Dr. HeapStat's postprocess.pl server should exit during error in the flash side Open

Component-Heapstat Migrated Priority-Low

DynamoRIO/drmemory#215 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Dr. HeapStat's snapshot view isn't sortable by user Open

Component-Heapstat Migrated Priority-Low

DynamoRIO/drmemory#216 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
64-bit Dr. Heapstat Open

Component-Heapstat Migrated Priority-Medium

DynamoRIO/drmemory#217 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Dr. HeapStat vistool should support multiple visualizations simultanenously Open

Component-Heapstat Migrated Priority-Medium

DynamoRIO/drmemory#218 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
add drheapstat postprocess.pl tests Open

Component-Heapstat Migrated Priority-Medium

DynamoRIO/drmemory#219 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[staleness] store alloc time separately, and set last access time to sentinel on alloc Open

Component-Heapstat Migrated Priority-Low Type-Feature

DynamoRIO/drmemory#220 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[staleness] monitor syscall params for staleness Open

Component-Heapstat Migrated Priority-Medium

DynamoRIO/drmemory#221 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[staleness] improve staleness performance Open

Component-Heapstat Migrated Priority-Medium Type-Feature

DynamoRIO/drmemory#222 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[staleness] sub-malloc staleness Open

Component-Heapstat Migrated Priority-Low Type-Feature

DynamoRIO/drmemory#223 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[staleness] add testing infrastructure to verify staleness.log Open

Component-Heapstat Migrated Priority-Medium

DynamoRIO/drmemory#224 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[staleness] special-case realloc to ignore libc copy? Open

Component-Heapstat Migrated Priority-Low Type-Feature

DynamoRIO/drmemory#225 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[staleness] data section staleness Open

Component-Heapstat Migrated Priority-Low Type-Feature

DynamoRIO/drmemory#226 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
show heap usage by app module Open

Component-Heapstat Migrated Priority-Medium Type-Feature

DynamoRIO/drmemory#227 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
add fragmentation analysis feature Open

Component-Heapstat Migrated Priority-Medium Type-Feature

DynamoRIO/drmemory#228 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
switch GUI x-axis to use actual time values instead of snapshot indices Open

Component-Heapstat Migrated Priority-Medium

DynamoRIO/drmemory#229 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
HANG drheapstat nudge test: non-det, nudge too early? Open

Component-Heapstat Migrated Priority-Low

DynamoRIO/drmemory#230 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[staleness] support other time units for staleness Open

Component-Heapstat Migrated Priority-Low Type-Feature

DynamoRIO/drmemory#231 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Last snapshot's time is incorrect with -time_allocs Open

Component-Heapstat Migrated Priority-Medium

DynamoRIO/drmemory#232 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
staleness visualization performance too slow: only compute for snapshots shown in graph Open

Component-Heapstat Migrated Priority-Medium

DynamoRIO/drmemory#233 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
spec2k6 gcc very slow b/c memset not checking in-heap flag Open

Migrated Performance Priority-Medium

DynamoRIO/drmemory#234 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
handle HEAP_CREATE_ALIGN_16 Open

Migrated OpSys-Windows Priority-Low

DynamoRIO/drmemory#240 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
misc memusage category too large: split it up Open

Migrated Performance Priority-Low

DynamoRIO/drmemory#242 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
unaddressable errors in loader in spec2k6 benchmarks on linux Open

Bug-FalsePositive Migrated OpSys-Linux Priority-Medium

DynamoRIO/drmemory#245 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
fastpath for and/or/test with partially-undefined operands Open

Migrated Performance Priority-Medium Type-Feature

DynamoRIO/drmemory#254 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Memory leak on _mtinit Open

Migrated OpSys-Windows Priority-Low

DynamoRIO/drmemory#256 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
unaddr from libc.so.6!__wcsnrtombs in spec2k6 xalancbmk Open

Bug-FalsePositive Migrated OpSys-Linux Priority-Low

DynamoRIO/drmemory#261 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
propagate non-word-sized mem2mem shadow values in fastpath Open

Migrated Performance Priority-Low Type-Feature

DynamoRIO/drmemory#262 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

DynamoRIO/drmemory

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