- wine-gitlab - winehq.org

Re: [PATCH v4 0/1] MR8858: sane.ds: Adding saving scanner settings to the registry
by Ivan Lyugaev (＠valy) 10 Sep '25

10 Sep '25

Will my MR be merged? -- https://gitlab.winehq.org/wine/wine/-/merge_requests/8858#note_115554

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[PATCH v3 0/2] MR8920: cmd: Fix some TYPE command behavior (one more try).
by Joe Souza (＠JoeS209) 10 Sep '25

10 Sep '25

Giving this one final shot. If this is not deemed acceptable, I will abandon the effort and just move on to other things, no hard feelings. This is IMO a cleaner, more conservative/less invasive change. What is fixed: - Bug #56381, "TYPE c:\windows\winhelp.exe >foo", i.e. binary mode operation. I would probably consider this the main reason for this change. I'm trying to get the compiler mentioned in the bug report working. - Ctrl-Z termination of TYPE output to the console. - "TYPE con >foo", with Ctrl-Z handling, functionally equivalent to "COPY con foo". -- v3: cmd: Fix some TYPE command behavior. cmd/tests: Add test to check for TYPE truncation in binary mode. https://gitlab.winehq.org/wine/wine/-/merge_requests/8920

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[PATCH 0/2] MR8947: Introduce a way to generate arbitrary binary files in cmd.exe's tests.
by eric pouech (＠epo) 10 Sep '25

10 Sep '25

In order to improve cmd.exe's test, we need to generate arbitrary binary files. There's already a hack in tests to generate from test executable some binary that will be lated used by the tests in .cmd file. That's not neati: this spreads tests across three different spots (batch input, batch output, binary file generator). We introduced the @\x??@ sequence in .cmd tests. Even if this supports most of the wanted BYTE:s, it doesn't work with EOF, \r and ctrl-Z (as they are always interpreted in ECHO command) (we can work around \n even it's ugly). After various testings, it looks like adding hex decoding to certutil is the decent solution: - it's supported on all Windows versions from the testbot VM, - it's rather straightforward to use (if you keep tests simple and short, which a good idea anyway). Even if our certutil implementation is empty, we have preliminary material from bcryp32 that shall provide the correct implementation. So this MR: - adds the -decodehex command to programs/certutil, - make use of it in order to generate existing binary test file inside the .cmd file. Pending MR!8920 will also make use of it. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/8947

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[PATCH v3 0/1] MR8944: winedbg: Reserve more memory for symbol value. (ASan).
by Bernhard Übelacker (＠bernhardu) 10 Sep '25

10 Sep '25

This is a first attempt to reserve more than the sizeof(DWORD). As far as I see the size in memory_read_value originates from a call to types_get_info(TI_GET_LENGTH). Therefore trying here to use a similar call to get the size for memory reservation. And if that fails, falling back to at least sizeof(void*). CC: @epo <details> <summary>ASan output from `wine winedbg.exe arp.exe`</summary> ``` $ export ASAN_OPTIONS="halt_on_error=0:allocator_may_return_null=1:strict_memcmp=0:windows_hook_rtl_allocators=1" $ wine winedbg.exe arp.exe WineDbg starting on pid 0144 013c:0140:fixme:dbghelp:elf_search_auxv can't find symbol in module 013c:0140:fixme:dbghelp:elf_search_auxv can't find symbol in module 013c:0140:fixme:dbghelp_dwarf:compute_location Only supporting one breg (r15/343 -> r12/340) 013c:0140:fixme:dbghelp_dwarf:dwarf2_fill_in_variant Unexpected base type bt=8 for form=f 013c:0140:fixme:dbghelp_dwarf:dwarf2_parse_variable Unsupported form for const value "pi" (f) 013c:0140:err:dbghelp_msc:codeview_process_info Unknown CODEVIEW signature 00000000 in module L"ntdll" 0x006fffffdc0569 ntdll+0x50569: retq Wine-dbg>bt Backtrace: =>0 0x006fffffdc0569 in ntdll (+0x50569) (0x007ffffe1ffa70) 013c:0140:fixme:dbghelp_dwarf:compute_location Unhandled attr op: 0 1 0x006fffffd9e1c0 loader_init+0x600(context=<is not available>, entry=<is not available>) [.../wine/dlls/ntdll/loader.c:0] in ntdll (0x007ffffe1ffa70) ================================================================= ==316==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7eea4db09d15 at pc 0x6ffffe85a58b bp 0x7ffffe1fa020 sp 0x7ffffe1fa068 READ of size 8 at 0x7eea4db09d15 thread T0 #0 0x6ffffe85a58a in __asan_memcpy /home/runner/work/llvm-mingw/llvm-mingw/llvm-project/compiler-rt\lib/asan/asan_interceptors_memintrinsics.cpp:63:3 #1 0x00014002c4c2 in memory_read_value .../wine/programs/winedbg/memory.c:107:13 #2 0x00014002e48a in memory_fetch_integer .../wine/programs/winedbg/memory.c:314:14 #3 0x00014002ff00 in print_typed_basic .../wine/programs/winedbg/memory.c #4 0x00014002f52d in print_basic .../wine/programs/winedbg/memory.c:687:10 #5 0x00014004b4df in print_value .../wine/programs/winedbg/types.c:499:9 #6 0x000140039452 in symbol_print_localvalue .../wine/programs/winedbg/symbol.c:707:9 #7 0x000140036832 in sym_enum_cb .../wine/programs/winedbg/stack.c:254:9 #8 0x6ffffac1baee in send_symbol .../wine/dlls/dbghelp/symbol.c:892:13 #9 0x6ffffac1b760 in symt_enum_locals_helper .../wine/dlls/dbghelp/symbol.c:1194:21 #10 0x6ffffac1b08f in symt_enum_locals .../wine/dlls/dbghelp/symbol.c:1227:16 #11 0x6ffffac1abd8 in sym_enum .../wine/dlls/dbghelp/symbol.c:1353:20 #12 0x6ffffac0f529 in doSymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1419:12 #13 0x6ffffac0f360 in SymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1450:11 #14 0x000140036507 in stack_print_addr_and_args .../wine/programs/winedbg/stack.c:290:9 #15 0x00014003584d in backtrace .../wine/programs/winedbg/stack.c:319:9 #16 0x000140034fc7 in stack_backtrace .../wine/programs/winedbg/stack.c:450:9 #17 0x0001400550a7 in dbg_parse .../wine/programs/winedbg/dbg.y #18 0x00014005766c in parser_handle .../wine/programs/winedbg/dbg.y:625:4 #19 0x000140050eff in dbg_start_interactive .../wine/programs/winedbg/winedbg.c:644:5 #20 0x0001400516b1 in main .../wine/programs/winedbg/winedbg.c:800:5 #21 0x0001400ed22c in mainCRTStartup .../wine/dlls/msvcrt/crt_main.c:62:11 #22 0x6fffffc377e0 in BaseThreadInitThunk .../wine/dlls/kernel32/thread.c:61:24 #23 0x6fffffdc0532 in RtlUserThreadStart (C:\windows\system32\ntdll.dll+0x170050532) 0x7eea4db09d15 is located 0 bytes after 5-byte region [0x7eea4db09d10,0x7eea4db09d15) allocated by thread T0 here: #0 0x6ffffe85bc41 in malloc /home/runner/work/llvm-mingw/llvm-mingw/llvm-project/compiler-rt\lib/asan/asan_malloc_win.cpp:80:3 #1 0x000140057c67 in lexeme_alloc_size .../wine/programs/winedbg/debug.l:48:43 #2 0x0001400398b8 in fill_sym_lvalue .../wine/programs/winedbg/symbol.c:157:34 #3 0x000140039436 in symbol_print_localvalue .../wine/programs/winedbg/symbol.c:705:9 #4 0x000140036832 in sym_enum_cb .../wine/programs/winedbg/stack.c:254:9 #5 0x6ffffac1baee in send_symbol .../wine/dlls/dbghelp/symbol.c:892:13 #6 0x6ffffac1b760 in symt_enum_locals_helper .../wine/dlls/dbghelp/symbol.c:1194:21 #7 0x6ffffac1b08f in symt_enum_locals .../wine/dlls/dbghelp/symbol.c:1227:16 #8 0x6ffffac1abd8 in sym_enum .../wine/dlls/dbghelp/symbol.c:1353:20 #9 0x6ffffac0f529 in doSymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1419:12 #10 0x6ffffac0f360 in SymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1450:11 #11 0x000140036507 in stack_print_addr_and_args .../wine/programs/winedbg/stack.c:290:9 #12 0x00014003584d in backtrace .../wine/programs/winedbg/stack.c:319:9 #13 0x000140034fc7 in stack_backtrace .../wine/programs/winedbg/stack.c:450:9 #14 0x0001400550a7 in dbg_parse .../wine/programs/winedbg/dbg.y #15 0x00014005766c in parser_handle .../wine/programs/winedbg/dbg.y:625:4 #16 0x000140050eff in dbg_start_interactive .../wine/programs/winedbg/winedbg.c:644:5 #17 0x0001400516b1 in main .../wine/programs/winedbg/winedbg.c:800:5 #18 0x0001400ed22c in mainCRTStartup .../wine/dlls/msvcrt/crt_main.c:62:11 #19 0x6fffffc377e0 in BaseThreadInitThunk .../wine/dlls/kernel32/thread.c:61:24 #20 0x6fffffdc0532 in RtlUserThreadStart (C:\windows\system32\ntdll.dll+0x170050532) SUMMARY: AddressSanitizer: heap-buffer-overflow .../wine/programs/winedbg/memory.c:107:13 in memory_read_value Shadow bytes around the buggy address: 0x7eea4db09a80: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa 0x7eea4db09b00: fa fa fd fa fa fa 00 00 fa fa fd fa fa fa 00 00 0x7eea4db09b80: fa fa 00 fa fa fa 00 00 fa fa fd fa fa fa fd fd 0x7eea4db09c00: fa fa fd fd fa fa fd fd fa fa fd fd fa fa fd fd 0x7eea4db09c80: fa fa fd fa fa fa fd fd fa fa fd fd fa fa fd fd =>0x7eea4db09d00: fa fa[05]fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09d80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09e00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09e80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09f00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09f80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 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 Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 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 013c:0140:fixme:dbghelp_dwarf:compute_location Unhandled attr op: 5 2 0x006fffffdc18dc LdrInitializeThunk+0x1c(context=<internal error>, unk2=0xbe00000000, unk3=<internal error>, unk4=<internal error>) in ntdll (0x007ffffe1ffae0) Wine-dbg>``` </details> -- v3: winedbg: Reserve more memory for symbol value. (ASan). https://gitlab.winehq.org/wine/wine/-/merge_requests/8944

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[PATCH v2 0/1] MR8944: Draft: winedbg: Reserve memory according to the debug information (ASan).
by Bernhard Übelacker (＠bernhardu) 10 Sep '25

10 Sep '25

This is a first attempt to reserve more than the sizeof(DWORD). As far as I see the size in memory_read_value originates from a call to types_get_info(TI_GET_LENGTH). Therefore trying here to use a similar call to get the size for memory reservation. And if that fails, falling back to at least sizeof(void*). CC: @epo <details> <summary>ASan output from `wine winedbg.exe arp.exe`</summary> ``` $ export ASAN_OPTIONS="halt_on_error=0:allocator_may_return_null=1:strict_memcmp=0:windows_hook_rtl_allocators=1" $ wine winedbg.exe arp.exe WineDbg starting on pid 0144 013c:0140:fixme:dbghelp:elf_search_auxv can't find symbol in module 013c:0140:fixme:dbghelp:elf_search_auxv can't find symbol in module 013c:0140:fixme:dbghelp_dwarf:compute_location Only supporting one breg (r15/343 -> r12/340) 013c:0140:fixme:dbghelp_dwarf:dwarf2_fill_in_variant Unexpected base type bt=8 for form=f 013c:0140:fixme:dbghelp_dwarf:dwarf2_parse_variable Unsupported form for const value "pi" (f) 013c:0140:err:dbghelp_msc:codeview_process_info Unknown CODEVIEW signature 00000000 in module L"ntdll" 0x006fffffdc0569 ntdll+0x50569: retq Wine-dbg>bt Backtrace: =>0 0x006fffffdc0569 in ntdll (+0x50569) (0x007ffffe1ffa70) 013c:0140:fixme:dbghelp_dwarf:compute_location Unhandled attr op: 0 1 0x006fffffd9e1c0 loader_init+0x600(context=<is not available>, entry=<is not available>) [.../wine/dlls/ntdll/loader.c:0] in ntdll (0x007ffffe1ffa70) ================================================================= ==316==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7eea4db09d15 at pc 0x6ffffe85a58b bp 0x7ffffe1fa020 sp 0x7ffffe1fa068 READ of size 8 at 0x7eea4db09d15 thread T0 #0 0x6ffffe85a58a in __asan_memcpy /home/runner/work/llvm-mingw/llvm-mingw/llvm-project/compiler-rt\lib/asan/asan_interceptors_memintrinsics.cpp:63:3 #1 0x00014002c4c2 in memory_read_value .../wine/programs/winedbg/memory.c:107:13 #2 0x00014002e48a in memory_fetch_integer .../wine/programs/winedbg/memory.c:314:14 #3 0x00014002ff00 in print_typed_basic .../wine/programs/winedbg/memory.c #4 0x00014002f52d in print_basic .../wine/programs/winedbg/memory.c:687:10 #5 0x00014004b4df in print_value .../wine/programs/winedbg/types.c:499:9 #6 0x000140039452 in symbol_print_localvalue .../wine/programs/winedbg/symbol.c:707:9 #7 0x000140036832 in sym_enum_cb .../wine/programs/winedbg/stack.c:254:9 #8 0x6ffffac1baee in send_symbol .../wine/dlls/dbghelp/symbol.c:892:13 #9 0x6ffffac1b760 in symt_enum_locals_helper .../wine/dlls/dbghelp/symbol.c:1194:21 #10 0x6ffffac1b08f in symt_enum_locals .../wine/dlls/dbghelp/symbol.c:1227:16 #11 0x6ffffac1abd8 in sym_enum .../wine/dlls/dbghelp/symbol.c:1353:20 #12 0x6ffffac0f529 in doSymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1419:12 #13 0x6ffffac0f360 in SymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1450:11 #14 0x000140036507 in stack_print_addr_and_args .../wine/programs/winedbg/stack.c:290:9 #15 0x00014003584d in backtrace .../wine/programs/winedbg/stack.c:319:9 #16 0x000140034fc7 in stack_backtrace .../wine/programs/winedbg/stack.c:450:9 #17 0x0001400550a7 in dbg_parse .../wine/programs/winedbg/dbg.y #18 0x00014005766c in parser_handle .../wine/programs/winedbg/dbg.y:625:4 #19 0x000140050eff in dbg_start_interactive .../wine/programs/winedbg/winedbg.c:644:5 #20 0x0001400516b1 in main .../wine/programs/winedbg/winedbg.c:800:5 #21 0x0001400ed22c in mainCRTStartup .../wine/dlls/msvcrt/crt_main.c:62:11 #22 0x6fffffc377e0 in BaseThreadInitThunk .../wine/dlls/kernel32/thread.c:61:24 #23 0x6fffffdc0532 in RtlUserThreadStart (C:\windows\system32\ntdll.dll+0x170050532) 0x7eea4db09d15 is located 0 bytes after 5-byte region [0x7eea4db09d10,0x7eea4db09d15) allocated by thread T0 here: #0 0x6ffffe85bc41 in malloc /home/runner/work/llvm-mingw/llvm-mingw/llvm-project/compiler-rt\lib/asan/asan_malloc_win.cpp:80:3 #1 0x000140057c67 in lexeme_alloc_size .../wine/programs/winedbg/debug.l:48:43 #2 0x0001400398b8 in fill_sym_lvalue .../wine/programs/winedbg/symbol.c:157:34 #3 0x000140039436 in symbol_print_localvalue .../wine/programs/winedbg/symbol.c:705:9 #4 0x000140036832 in sym_enum_cb .../wine/programs/winedbg/stack.c:254:9 #5 0x6ffffac1baee in send_symbol .../wine/dlls/dbghelp/symbol.c:892:13 #6 0x6ffffac1b760 in symt_enum_locals_helper .../wine/dlls/dbghelp/symbol.c:1194:21 #7 0x6ffffac1b08f in symt_enum_locals .../wine/dlls/dbghelp/symbol.c:1227:16 #8 0x6ffffac1abd8 in sym_enum .../wine/dlls/dbghelp/symbol.c:1353:20 #9 0x6ffffac0f529 in doSymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1419:12 #10 0x6ffffac0f360 in SymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1450:11 #11 0x000140036507 in stack_print_addr_and_args .../wine/programs/winedbg/stack.c:290:9 #12 0x00014003584d in backtrace .../wine/programs/winedbg/stack.c:319:9 #13 0x000140034fc7 in stack_backtrace .../wine/programs/winedbg/stack.c:450:9 #14 0x0001400550a7 in dbg_parse .../wine/programs/winedbg/dbg.y #15 0x00014005766c in parser_handle .../wine/programs/winedbg/dbg.y:625:4 #16 0x000140050eff in dbg_start_interactive .../wine/programs/winedbg/winedbg.c:644:5 #17 0x0001400516b1 in main .../wine/programs/winedbg/winedbg.c:800:5 #18 0x0001400ed22c in mainCRTStartup .../wine/dlls/msvcrt/crt_main.c:62:11 #19 0x6fffffc377e0 in BaseThreadInitThunk .../wine/dlls/kernel32/thread.c:61:24 #20 0x6fffffdc0532 in RtlUserThreadStart (C:\windows\system32\ntdll.dll+0x170050532) SUMMARY: AddressSanitizer: heap-buffer-overflow .../wine/programs/winedbg/memory.c:107:13 in memory_read_value Shadow bytes around the buggy address: 0x7eea4db09a80: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa 0x7eea4db09b00: fa fa fd fa fa fa 00 00 fa fa fd fa fa fa 00 00 0x7eea4db09b80: fa fa 00 fa fa fa 00 00 fa fa fd fa fa fa fd fd 0x7eea4db09c00: fa fa fd fd fa fa fd fd fa fa fd fd fa fa fd fd 0x7eea4db09c80: fa fa fd fa fa fa fd fd fa fa fd fd fa fa fd fd =>0x7eea4db09d00: fa fa[05]fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09d80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09e00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09e80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09f00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09f80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 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 Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 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 013c:0140:fixme:dbghelp_dwarf:compute_location Unhandled attr op: 5 2 0x006fffffdc18dc LdrInitializeThunk+0x1c(context=<internal error>, unk2=0xbe00000000, unk3=<internal error>, unk4=<internal error>) in ntdll (0x007ffffe1ffae0) Wine-dbg>``` </details> -- v2: winedbg: Reserve more memory for symbol value. (ASan). https://gitlab.winehq.org/wine/wine/-/merge_requests/8944

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[PATCH v3 0/6] MR8941: nsi: Explicitly add loopback entries to ipv4 forward table on Linux.
by Paul Gofman (＠gofman) 10 Sep '25

10 Sep '25

-- v3: iphlpapi: Fix udp_row_cmp(). https://gitlab.winehq.org/wine/wine/-/merge_requests/8941

3 10

Re: [PATCH v8 0/2] MR7539: combase : clsid_from_string_reg() add read of CurVer key value.
by Nikolay Sivov (＠nsivov) 10 Sep '25

10 Sep '25

This needs some work still. All places using clsid_from_string_reg() has to be tested, tests should pass on every commit, buffer sizes should likely be revised, following CurVer chain tests are incomplete. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/7539#note_115539

1 0

[PATCH 0/1] MR8945: opcservices: IOpcPart::GetContentType takes LPWSTR, not BSTR.
by Yuxuan Shui (＠yshui) 10 Sep '25

10 Sep '25

And the WSTR it returns should be freed by CoTaskMemFree, as per [Microsoft's documentation](https://learn.microsoft.com/en-us/windows/win32/api/msopc/nf…. Found by ASan. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/8945

3 3

[PATCH 0/1] MR8944: Draft: winedbg: Reserve memory according to the debug information (ASan).
by Bernhard Übelacker (＠bernhardu) 10 Sep '25

10 Sep '25

This is a first attempt to reserve more than the sizeof(DWORD). As far as I see the size in memory_read_value originates from a call to types_get_info(TI_GET_LENGTH). Therefore trying here to use a similar call to get the size for memory reservation. And if that fails, falling back to at least sizeof(void*). CC: @epo <details> <summary>ASan output from `wine winedbg.exe arp.exe`</summary> ``` $ export ASAN_OPTIONS="halt_on_error=0:allocator_may_return_null=1:strict_memcmp=0:windows_hook_rtl_allocators=1" $ wine winedbg.exe arp.exe WineDbg starting on pid 0144 013c:0140:fixme:dbghelp:elf_search_auxv can't find symbol in module 013c:0140:fixme:dbghelp:elf_search_auxv can't find symbol in module 013c:0140:fixme:dbghelp_dwarf:compute_location Only supporting one breg (r15/343 -> r12/340) 013c:0140:fixme:dbghelp_dwarf:dwarf2_fill_in_variant Unexpected base type bt=8 for form=f 013c:0140:fixme:dbghelp_dwarf:dwarf2_parse_variable Unsupported form for const value "pi" (f) 013c:0140:err:dbghelp_msc:codeview_process_info Unknown CODEVIEW signature 00000000 in module L"ntdll" 0x006fffffdc0569 ntdll+0x50569: retq Wine-dbg>bt Backtrace: =>0 0x006fffffdc0569 in ntdll (+0x50569) (0x007ffffe1ffa70) 013c:0140:fixme:dbghelp_dwarf:compute_location Unhandled attr op: 0 1 0x006fffffd9e1c0 loader_init+0x600(context=<is not available>, entry=<is not available>) [.../wine/dlls/ntdll/loader.c:0] in ntdll (0x007ffffe1ffa70) ================================================================= ==316==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7eea4db09d15 at pc 0x6ffffe85a58b bp 0x7ffffe1fa020 sp 0x7ffffe1fa068 READ of size 8 at 0x7eea4db09d15 thread T0 #0 0x6ffffe85a58a in __asan_memcpy /home/runner/work/llvm-mingw/llvm-mingw/llvm-project/compiler-rt\lib/asan/asan_interceptors_memintrinsics.cpp:63:3 #1 0x00014002c4c2 in memory_read_value .../wine/programs/winedbg/memory.c:107:13 #2 0x00014002e48a in memory_fetch_integer .../wine/programs/winedbg/memory.c:314:14 #3 0x00014002ff00 in print_typed_basic .../wine/programs/winedbg/memory.c #4 0x00014002f52d in print_basic .../wine/programs/winedbg/memory.c:687:10 #5 0x00014004b4df in print_value .../wine/programs/winedbg/types.c:499:9 #6 0x000140039452 in symbol_print_localvalue .../wine/programs/winedbg/symbol.c:707:9 #7 0x000140036832 in sym_enum_cb .../wine/programs/winedbg/stack.c:254:9 #8 0x6ffffac1baee in send_symbol .../wine/dlls/dbghelp/symbol.c:892:13 #9 0x6ffffac1b760 in symt_enum_locals_helper .../wine/dlls/dbghelp/symbol.c:1194:21 #10 0x6ffffac1b08f in symt_enum_locals .../wine/dlls/dbghelp/symbol.c:1227:16 #11 0x6ffffac1abd8 in sym_enum .../wine/dlls/dbghelp/symbol.c:1353:20 #12 0x6ffffac0f529 in doSymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1419:12 #13 0x6ffffac0f360 in SymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1450:11 #14 0x000140036507 in stack_print_addr_and_args .../wine/programs/winedbg/stack.c:290:9 #15 0x00014003584d in backtrace .../wine/programs/winedbg/stack.c:319:9 #16 0x000140034fc7 in stack_backtrace .../wine/programs/winedbg/stack.c:450:9 #17 0x0001400550a7 in dbg_parse .../wine/programs/winedbg/dbg.y #18 0x00014005766c in parser_handle .../wine/programs/winedbg/dbg.y:625:4 #19 0x000140050eff in dbg_start_interactive .../wine/programs/winedbg/winedbg.c:644:5 #20 0x0001400516b1 in main .../wine/programs/winedbg/winedbg.c:800:5 #21 0x0001400ed22c in mainCRTStartup .../wine/dlls/msvcrt/crt_main.c:62:11 #22 0x6fffffc377e0 in BaseThreadInitThunk .../wine/dlls/kernel32/thread.c:61:24 #23 0x6fffffdc0532 in RtlUserThreadStart (C:\windows\system32\ntdll.dll+0x170050532) 0x7eea4db09d15 is located 0 bytes after 5-byte region [0x7eea4db09d10,0x7eea4db09d15) allocated by thread T0 here: #0 0x6ffffe85bc41 in malloc /home/runner/work/llvm-mingw/llvm-mingw/llvm-project/compiler-rt\lib/asan/asan_malloc_win.cpp:80:3 #1 0x000140057c67 in lexeme_alloc_size .../wine/programs/winedbg/debug.l:48:43 #2 0x0001400398b8 in fill_sym_lvalue .../wine/programs/winedbg/symbol.c:157:34 #3 0x000140039436 in symbol_print_localvalue .../wine/programs/winedbg/symbol.c:705:9 #4 0x000140036832 in sym_enum_cb .../wine/programs/winedbg/stack.c:254:9 #5 0x6ffffac1baee in send_symbol .../wine/dlls/dbghelp/symbol.c:892:13 #6 0x6ffffac1b760 in symt_enum_locals_helper .../wine/dlls/dbghelp/symbol.c:1194:21 #7 0x6ffffac1b08f in symt_enum_locals .../wine/dlls/dbghelp/symbol.c:1227:16 #8 0x6ffffac1abd8 in sym_enum .../wine/dlls/dbghelp/symbol.c:1353:20 #9 0x6ffffac0f529 in doSymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1419:12 #10 0x6ffffac0f360 in SymEnumSymbols .../wine/dlls/dbghelp/symbol.c:1450:11 #11 0x000140036507 in stack_print_addr_and_args .../wine/programs/winedbg/stack.c:290:9 #12 0x00014003584d in backtrace .../wine/programs/winedbg/stack.c:319:9 #13 0x000140034fc7 in stack_backtrace .../wine/programs/winedbg/stack.c:450:9 #14 0x0001400550a7 in dbg_parse .../wine/programs/winedbg/dbg.y #15 0x00014005766c in parser_handle .../wine/programs/winedbg/dbg.y:625:4 #16 0x000140050eff in dbg_start_interactive .../wine/programs/winedbg/winedbg.c:644:5 #17 0x0001400516b1 in main .../wine/programs/winedbg/winedbg.c:800:5 #18 0x0001400ed22c in mainCRTStartup .../wine/dlls/msvcrt/crt_main.c:62:11 #19 0x6fffffc377e0 in BaseThreadInitThunk .../wine/dlls/kernel32/thread.c:61:24 #20 0x6fffffdc0532 in RtlUserThreadStart (C:\windows\system32\ntdll.dll+0x170050532) SUMMARY: AddressSanitizer: heap-buffer-overflow .../wine/programs/winedbg/memory.c:107:13 in memory_read_value Shadow bytes around the buggy address: 0x7eea4db09a80: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa 0x7eea4db09b00: fa fa fd fa fa fa 00 00 fa fa fd fa fa fa 00 00 0x7eea4db09b80: fa fa 00 fa fa fa 00 00 fa fa fd fa fa fa fd fd 0x7eea4db09c00: fa fa fd fd fa fa fd fd fa fa fd fd fa fa fd fd 0x7eea4db09c80: fa fa fd fa fa fa fd fd fa fa fd fd fa fa fd fd =>0x7eea4db09d00: fa fa[05]fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09d80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09e00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09e80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09f00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x7eea4db09f80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 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 Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 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 013c:0140:fixme:dbghelp_dwarf:compute_location Unhandled attr op: 5 2 0x006fffffdc18dc LdrInitializeThunk+0x1c(context=<internal error>, unk2=0xbe00000000, unk3=<internal error>, unk4=<internal error>) in ntdll (0x007ffffe1ffae0) Wine-dbg>``` </details> -- https://gitlab.winehq.org/wine/wine/-/merge_requests/8944

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[PATCH v6 0/2] MR3854: winmm: Avoid use of hardcoded return values.
by Alistair Leslie-Hughes (＠alesliehughes) 10 Sep '25

10 Sep '25

Based on patch by Michael Müller. -- v6: winmm: MCI_MapMsgAtoW return error code directly instead of a tri-value. winmm: Always call MCI_UnmapMsgAtoW in mciSendCommandA. https://gitlab.winehq.org/wine/wine/-/merge_requests/3854

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2025

2024

2023

2022

wine-gitlab