mirror/upx
1
0
Fork 0
mirror of https://github.com/upx/upx synced 2025-09-28 19:06:07 +08:00
Code Issues Releases Wiki Activity
4,493 Commits 3 Branches 44 Tags 91 MiB
17d0e897ba
Commit Graph

4493 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
John Reiser
e52a3ceb48 Unpack: Entire ElfXX_Ehdr must be present in de-compressed Ehdr+Phdrs 
https://issues.oss-fuzz.com/u/1/issues/397728078
(previous commit: https://issues.oss-fuzz.com/u/1/issues/397500915)
	modified:   p_lx_elf.cpp
 2025-02-22 07:55:14 -08:00
John Reiser
8cce9cf641 Detect bad b_info.method 
https://issues.oss-fuzz.com/u/1/issues?q=upx
	modified:   p_lx_elf.cpp
	modified:   p_unix.cpp
	modified:   packhead.cpp
	modified:   packhead.h
 2025-02-22 07:55:14 -08:00
Markus F.X.J. Oberhumer
896dff9619 src/check: some toolchains are buggy 2025-02-22 06:43:28 +01:00
Markus F.X.J. Oberhumer
84a0347df1 testsuite: update checksums caused by version bump 2025-02-21 00:12:41 +01:00
Markus F.X.J. Oberhumer
fc5e44f391 all: post-release version bump 2025-02-20 23:56:24 +01:00
Markus F.X.J. Oberhumer
8bf49aa4f2 all: prepare for release 2025-02-20 16:02:44 +01:00
Markus F.X.J. Oberhumer
b8079bb6eb CI updates 2025-02-19 16:45:44 +01:00
John Reiser
5dcad7a387 Mention ELF work 
modified:   NEWS
 2025-02-18 08:26:30 -08:00
John Reiser
83e5f74b3d Compiler different type checking 
modified:   p_lx_elf.cpp
 2025-02-17 09:39:55 -08:00
John Reiser
3d402134f5 Better checking of DT_GNU_HASH during de-compression 
https://issues.oss-fuzz.com/u/1/issues/396167884
	modified:   p_lx_elf.cpp
 2025-02-17 09:14:19 -08:00
John Reiser
b8b64a3e0f Fuzz nuisance: wild p_info for de-compression 
https://issues.oss-fuzz.com/u/1/issues/383200048
	modified:   p_lx_elf.cpp
 2025-02-17 08:26:17 -08:00
John Reiser
c0bf7bf9ab Old powerpc* kernels lack MFD_EXEC 
For example: Debian 3.16.43-2+deb8u5 (2017-09-19)
	modified:   ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	modified:   stub/Makefile
	modified:   stub/src/powerpc-linux.elf-entry.S
	modified:   stub/src/powerpc-linux.elf-fold.S
	modified:   stub/src/powerpc64-linux.elf-entry.S
	modified:   stub/src/powerpc64-linux.elf-fold.S
           plus generated .h, .dump, .map
 2025-02-16 15:33:58 -08:00
John Reiser
0144f81c28 Cleanup stub for arm64 shared library 
modified:   stub/arm64-linux.elf-so_entry.h
	modified:   stub/src/arm64-linux.elf-so_entry.S
 2025-02-16 08:41:50 -08:00
John Reiser
78f4959521 Fix de-compression of ELF shared libraries 
Reset ph.method on each b_info.b_method.
Use file_image[] as ReadOnly, subsuming fi->seek()+read().
Use lowmem[0, +xct_off) for changing values.
Work on un_DT_INIT().
https://github.com/upx/upx/issues/882

	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_unix.cpp
 2025-02-15 19:35:21 -08:00
John Reiser
eff1ef2d70 Fix amd64 shared libraries 
Inspired by https://github.com/upx/upx/issues/880
(https://github.com/microsoft/mimalloc.git on Linux)
but still need test case.
	modified:   p_lx_elf.cpp
	modified:   stub/amd64-linux.elf-so_entry.h
	modified:   stub/src/amd64-linux.elf-so_entry.S
 2025-02-13 17:22:37 -08:00
John Reiser
782b07c752 PPC64 check ehdri.e_ident[EI_DATA], not elfout 
modified:   p_lx_elf.cpp
 2025-02-12 08:56:18 -08:00
John Reiser
bd67677389 Honor dos_header_t.e_cparhdr for small header 
... and cleanup PackDjgpp2::readFileHeader()
https://github.com/upx/upx/issues/881

	modified:   p_djgpp2.cpp
	modified:   p_djgpp2.h
 2025-02-11 10:29:53 -08:00
John Reiser
8c9e04daaf Propagate .e_ident[EI_ABIVERSION] 
Linux on bare metal (and explicit qemu) seems not to care,
but qemu-user-binfmt gives ENOEXEC (Exec format error)
        https://github.com/upx/upx/issues/876
 2025-02-07 19:24:46 -08:00
John Reiser
bddc05e787 Fix elf_lookup() defenses against fuzzed DT_HASH 
modified:   p_lx_elf.cpp
 2025-02-01 13:22:26 -08:00
John Reiser
a49d023bd0 Detect too-short Mach_command, also be careful in recovery 
fuzzing from leon.weiss AT @ruhr-uni-bochum.de
https://github.com/upx/upx/issues/875
https://github.com/upx/upx/issues/874
	modified:   p_mach.cpp
 2025-01-31 11:34:48 -08:00
John Reiser
7b06ba0b78 Detect empty DT_STRTAB 
https://github.com/upx/upx/issues/872
fuzzing from leon.weiss AT @ruhr-uni-bochum.de
	modified:   p_lx_elf.cpp
 2025-01-31 11:32:48 -08:00
John Reiser
344b73dab0 invert_pt_dynamic defends against missing DT_STRTAB or DT_STRSIZ 
https://github.com/upx/upx/issues/872
fuzzing from leon.weiss AT @ruhr-uni-bochum.de
	modified:   p_lx_elf.cpp
 2025-01-30 11:42:09 -08:00
John Reiser
0870514194 elf_lookup must defend against bad chain in hash table 
https://github.com/upx/upx/issues/871
fuzzing from leon.weiss AT @ruhr-uni-bochum.de
 2025-01-30 10:56:45 -08:00
Markus F.X.J. Oberhumer
0a61ffea3a submodules: update for new versions 2025-01-30 00:05:15 +01:00
Markus F.X.J. Oberhumer
fbc650791d CI updates 2025-01-29 22:19:21 +01:00
Markus F.X.J. Oberhumer
4b41aa1226 CI updates 2025-01-29 16:11:03 +01:00
Markus F.X.J. Oberhumer
3fd68d3ec6 CI updates 2025-01-27 18:11:44 +01:00
John Reiser
d41ceb0d31 ARM64: move Psync closer to PAGE_MASK 
and use 'bic' instead of 'and'
	modified:   stub/arm64-linux.elf-so_fold.h
	modified:   stub/src/arm64-linux.elf-so_fold.S
 2025-01-26 18:43:14 -08:00
John Reiser
aee970e80b Allow empty .rsrc Section in PE file 
https://github.com/upx/upx/issues/869
	modified:   pefile.cpp
 2025-01-24 07:45:05 -08:00
Markus F.X.J. Oberhumer
ef8a24ba53 CI updates. Closes #862. 2025-01-21 21:16:01 +01:00
Markus F.X.J. Oberhumer
2edf91d315 testsuite: update checksums caused by version bump 2025-01-17 22:06:55 +01:00
Markus F.X.J. Oberhumer
9fe377b288 all: version bump 2025-01-17 21:50:38 +01:00
Markus F.X.J. Oberhumer
996ca8d17d all: welcome 2025 2025-01-17 21:18:55 +01:00
Markus F.X.J. Oberhumer
b356595eb5 CI updates 2025-01-17 21:15:43 +01:00
Markus F.X.J. Oberhumer
e4668e5328 CI updates 2025-01-08 12:57:52 +01:00
John Reiser
a846e483be clang-format uglifies again 
modified:   p_w64pe_amd64.cpp
 2025-01-02 12:05:59 -08:00
John Reiser
f6e3df69eb stub/amd64-win64.pe.h matches upx-v4.2.4 
so that anti-virus checkers of apps for 64-bit Windows that are newly-
compressed by upx should not complain about new matches with malware.
This costs a few bytes and a small fraction of cycles in NRV2
de-compressors, but is considered to be a tolerable concession
to the cesspool environment of software for Microsoft Windows.
	modified:   ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	modified:   p_w64pe_amd64.cpp   see code comments
	modified:   stub/amd64-win64.pe.h
	modified:   stub/src/arch/amd64/lzma_d.S   see code comments
	modified:   stub/src/arch/amd64/nrv2b_d.S
	modified:   stub/src/arch/amd64/nrv2d_d.S
	modified:   stub/src/arch/amd64/nrv2e_d.S
	modified:   stub/tmp/amd64-win64.pe.bin.dump
 2025-01-02 11:47:34 -08:00
John Reiser
1a6c1f0589 Fix unpackExtent() of non-compressible extent (PT_LOAD) 
modified:   ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	modified:   stub/src/amd64-darwin.macho-main.c
	modified:   stub/src/amd64-darwin.macho-upxmain.c
	modified:   stub/src/amd64-linux.elf-main.c
	modified:   stub/src/amd64-linux.elf-main2.c
	modified:   stub/src/amd64-linux.elf-so_entry.S
	modified:   stub/src/amd64-linux.elf-so_main.c
	modified:   stub/src/i386-bsd.elf-main.c
	modified:   stub/src/i386-darwin.macho-main.c
	modified:   stub/src/i386-darwin.macho-upxmain.c
	modified:   stub/src/i386-linux.elf-main.c
	modified:   stub/src/i386-linux.elf-main2.c
	modified:   stub/src/i386-linux.elf-so_main.c
	modified:   stub/src/i386-linux.elf.interp-main.c
	modified:   stub/src/i386-linux.elf.shell-main.c
	modified:   stub/src/i386-openbsd.elf-main.c
	modified:   stub/src/powerpc-darwin.macho-main.c
	modified:   stub/src/powerpc-darwin.macho-upxmain.c
	modified:   stub/src/powerpc64-darwin.macho-main.c
            plus generated *.h  *.map  *.dump
 2024-12-30 16:49:31 -08:00
John Reiser
e3e5d8a3a5 Try again for Android Elfxx_Shdr 
modified:   ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_unix.cpp
 2024-12-23 11:20:26 -08:00
John Reiser
505f6b7373 Remove PROT_WRITE from de-compressed folded code. 
Safer; required for SELinux Enforcing mode;
but inhibits breakpoint debugging.
	modified:   stub/amd64-linux.elf-entry.h
	modified:   stub/mips.r3000-linux.elf-entry.h
	modified:   stub/mipsel.r3000-linux.elf-entry.h
	modified:   stub/powerpc-linux.elf-entry.h
	modified:   stub/src/amd64-linux.elf-entry.S
	modified:   stub/src/mipsel.r3000-linux.elf-entry.S
	modified:   stub/src/powerpc-linux.elf-entry.S
 2024-12-23 10:52:07 -08:00
John Reiser
7d907d9d65 is_asl handles per-file opt->o_unix.android_shlib 
Also slide_sh_offset() handles so_slide.
TODO: if asl_delta, then relocate sh_offset that is above xct_off.
PT_DYNAMIC.p_offset and {.dynamic}.sh_offset must match; etc.

	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_unix.cpp
 2024-12-17 17:17:24 -08:00
John Reiser
d00ba4b465 Forgotten file 
new file:   src/amd64-linux.elf-so_entry.lds
 2024-12-12 11:13:12 -08:00
John Reiser
d4deb2a100 Psync: msync demands page-aligned first argument 
modified:   misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	modified:   src/stub/src/amd64-linux.elf-fold.S
	modified:   src/stub/src/amd64-linux.elf-main2.c
	modified:   src/stub/src/amd64-linux.elf-so_fold.S
	modified:   src/stub/src/amd64-linux.elf-so_main.c
	modified:   src/stub/src/arm.v4a-linux.elf-entry.S
	modified:   src/stub/src/arm.v4a-linux.elf-fold.S
	modified:   src/stub/src/arm.v4a-linux.elf-so_fold.S
	modified:   src/stub/src/arm64-linux.elf-fold.S
	modified:   src/stub/src/arm64-linux.elf-so_fold.S
	modified:   src/stub/src/i386-linux.elf-fold.S
	modified:   src/stub/src/i386-linux.elf-main2.c
	modified:   src/stub/src/i386-linux.elf-so_entry.S
	modified:   src/stub/src/i386-linux.elf-so_fold.S
	modified:   src/stub/src/i386-linux.elf-so_main.c
	modified:   src/stub/src/mipsel.r3000-linux.elf-fold.S
	modified:   src/stub/src/powerpc-linux.elf-fold.S
	modified:   src/stub/src/powerpc64-linux.elf-fold.S
            plus stubs *.h *.dump *.map
 2024-12-12 10:50:30 -08:00
John Reiser
5999b0a959 Unused get_page_mask but satisfies external for upxfd_*.c 
modified:   stub/src/i386-linux.elf-entry.S
 2024-12-10 17:10:27 -08:00
John Reiser
e2f1e6697a Stubs for shared libraries on amd64-linux.elf and arm64-linux.elf 
modified:   stub/Makefile
	modified:   stub/src/amd64-linux.elf-so_entry.S
	modified:   stub/src/amd64-linux.elf-so_fold.S
	modified:   stub/src/arm64-linux.elf-so_entry.S
	modified:   stub/src/arm64-linux.elf-so_fold.S
	modified:   stub/src/upxfd_linux.c
 2024-12-10 16:49:35 -08:00
Markus F.X.J. Oberhumer
baee96347d CI updates 2024-12-11 07:54:48 +01:00
John Reiser
f60d8f6d18 Fix MIPS stubs 
modified:   ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	modified:   stub/Makefile
	modified:   stub/mips.r3000-linux.elf-entry.h
	modified:   stub/mipsel.r3000-linux.elf-entry.h
	modified:   stub/tmp/mips.r3000-linux.elf-entry.bin.dump
	modified:   stub/tmp/mips.r3000-linux.elf-fold.map
	modified:   stub/tmp/mipsel.r3000-linux.elf-entry.bin.dump
	modified:   stub/tmp/mipsel.r3000-linux.elf-fold.map
 2024-12-09 14:26:00 -08:00
John Reiser
d3300e9564 Sync stubs 
modified:   ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	modified:   stub/arm.v4a-linux.elf-entry.h
	modified:   stub/arm.v5a-linux.elf-entry.h
	modified:   stub/armeb.v4a-linux.elf-entry.h
	modified:   stub/mips.r3000-linux.elf-entry.h
	modified:   stub/mips.r3000-linux.elf-fold.h
	modified:   stub/mipsel.r3000-linux.elf-entry.h
	modified:   stub/mipsel.r3000-linux.elf-fold.h
	modified:   stub/tmp/arm.v4a-linux.elf-entry.bin.dump
	modified:   stub/tmp/arm.v5a-linux.elf-entry.bin.dump
	modified:   stub/tmp/armeb.v4a-linux.elf-entry.bin.dump
 2024-12-09 13:33:21 -08:00
John Reiser
877390a2ba FIx MIPS stubs 
modified:   stub/Makefile
	modified:   stub/src/arm.v4a-linux.elf-entry.S
	modified:   stub/src/i386-linux.elf-main2.c
	modified:   stub/src/upxfd_android.c
	modified:   stub/src/upxfd_linux.c
 2024-12-09 13:26:22 -08:00
John Reiser
5afe2af365 EINVAL whitespace 
modified:   src/stub/src/i386-linux.elf-so_main.c
 2024-12-07 09:46:42 -08:00