RISC-V modified the address of github and the suffix of the file.
The previous link is no longer accessible. use latest link.
Change-Id: I5e33ea8447a59b8183658248df05c79ddd380cba
Reviewed-on: https://go-review.googlesource.com/c/go/+/497378
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This relocation is not (yet?) defined in ELFv2, but has been added to
gnu gas a couple years ago. It is the same reloc as
R_PPC64_REL24_NOTOC, but hints power10 instructions should not be
emitted.
See binutils commit 7aba54da426b9999085d8f84e7896b8afdbb9ca6.
Fixes#60348
Change-Id: Ie953cd7bf1ffc621b498d4dbebb5de1231833c8f
Reviewed-on: https://go-review.googlesource.com/c/go/+/496918
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A section with uninitialized data contains no bytes and occupies
no space in the file. This change makes it return an error on reading
from this section so that it will force the caller to check for
a section with uninitialized data.
This is the debug/pe version of CL 429601.
This will break programs that expect a byte slice with the length
described by the SizeOfRawData field. There are two reasons to
introduce this breaking change: 1) uninitialized data is uninitialized
and there is no reason to allocate memory for it; 2) it could result
in an OOM if the file is corrupted and has a large invalid SizeOfRawData.
No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
For #47653Fixes#59817
Change-Id: I1ae94e9508f803b37926275d9a571f724a09af9f
Reviewed-on: https://go-review.googlesource.com/c/go/+/488475
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: kortschak <dan@kortschak.io>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Test cases added to debug/dwarf because that is where it matters in practice.
The new test binary line-gcc-zstd.elf built with
gcc -g -no-pie -Wl,--compress-debug-sections=zstd line[12].c
using
gcc (Debian 12.2.0-10) 12.2.0
with a development version of the GNU binutils.
Fixes#55107
Change-Id: I48507c96902e1f83a174e5647b5cc403d965b52b
Reviewed-on: https://go-review.googlesource.com/c/go/+/473256
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Fixes#58141
Co-authored-by: Richard Musiol <neelance@gmail.com>
Co-authored-by: Achille Roussel <achille.roussel@gmail.com>
Co-authored-by: Julien Fabre <ju.pryz@gmail.com>
Co-authored-by: Evan Phoenix <evan@phx.io>
Change-Id: I49b66946acc90fdf09ed9223096bfec9a1e5b923
Reviewed-on: https://go-review.googlesource.com/c/go/+/479627
Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
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Re-run all go:generate stringer commands. This mostly adds checks
that the constant values did not change, but does add new strings
for the debug/dwarf and internal/pkgbits packages.
Change-Id: I5fc41f20da47338152c183d45d5ae65074e2fccf
Reviewed-on: https://go-review.googlesource.com/c/go/+/483717
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In rare cases, elf will get a corrupted section starts with 0x1,
which happens to be COMPRESS_ZLIB that causing decompress twice.
This CL drops sectionData decompress data after open section.
Fixes#59208
Change-Id: I7999a55868b3b3481509e1ac35985f7580f0f688
Reviewed-on: https://go-review.googlesource.com/c/go/+/480895
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Fixes the misuse of "a" vs "an", according to English grammatical
expectations and using https://www.a-or-an.com/
Change-Id: I53ac724070e3ff3d33c304483fe72c023c7cda47
Reviewed-on: https://go-review.googlesource.com/c/go/+/480536
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Currently, on e == nil or e.Tag == 0, SeekPC returns with a nil error.
Instead, indicate that the PC is unknown.
Change-Id: I9594296034e2df872e399bd800b00cb565c413c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/473695
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buildinfo did not check for fat magic, which caused go version to report
unrecognized file format.
This change reads the fat file and passes the first arch file to machoExe.
Fixes#58796
Change-Id: I45cd26729352e46cc7ecfb13f2e9a8d96d62e0a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/473615
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Add functionality to retrieve values for .dynamic entries that don't
correspond to entries in the string table.
Fixes#56892
Change-Id: I6edabc8ca331c819e442d06e19b7f4df8343372b
Reviewed-on: https://go-review.googlesource.com/c/go/+/452617
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This avoids a very large memory allocation if corrupt data says that
we need to read a very long string.
No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
For #47653Fixes#58886
Change-Id: I4e80ba62a6416d010c8804e4f49ae81bdafaadb8
Reviewed-on: https://go-review.googlesource.com/c/go/+/473657
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No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
For #47653Fixes#58755
Change-Id: I5b95a21f47ec306ad90cd6221f0566c6f8b6c3ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/471835
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
For #47653Fixes#58642
Change-Id: I19fee0dc9bd6239b520c15182b8f1e57bb0049bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/470397
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No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
For #47653Fixes#58603
Change-Id: I67fc45365c1a5b0b4b381f541bf2fee8ce8ddc3a
Reviewed-on: https://go-review.googlesource.com/c/go/+/469895
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This is the second round to look for spelling mistakes. This time the
manual sifting of the result list was made easier by filtering out
capitalized and camelcase words.
grep -r --include '*.go' -E '^// .*$' . | aspell list | grep -E -x '[A-Za-z]{1}[a-z]*' | sort | uniq
This PR will be imported into Gerrit with the title and first
comment (this text) used to generate the subject and body of
the Gerrit change.
Change-Id: Ie8a2092aaa7e1f051aa90f03dbaf2b9aaf5664a9
GitHub-Last-Rev: fc2bd6e0c5
GitHub-Pull-Request: golang/go#57737
Reviewed-on: https://go-review.googlesource.com/c/go/+/461595
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Previous implementation has a check on pointer size but only if ptrSize
is 4. but it does not check on ptrSize 8 causing the panic on read for
some inputs.
The explicit check for pointer size 8 is added and error is returned if
ptrSize is not 4 and not 8.
Fixes#57002
Change-Id: Id51de72bdef4da9955d086bfc2a5d735678ee2ac
Reviewed-on: https://go-review.googlesource.com/c/go/+/454616
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Change-Id: Ic16824482142d4de4d0b949459e36505ee944ff7
Reviewed-on: https://go-review.googlesource.com/c/go/+/448175
Reviewed-by: Robert Griesemer <gri@google.com>
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Change-Id: I871a747b4b47bccc889f2fdc93a2bcebb041b719
Reviewed-on: https://go-review.googlesource.com/c/go/+/447895
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The size of gnuVersym should be multiples of 2. If not, the input is
invalid. No Library and Version information is added to sym in this
case. The current implementation of gnuVersion does not report errors
for invalid input.
While at here, bring back the comment that states that the undef entry
at the beginning is skipped. This is not an off-by-one error.
No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
Fixes#56429.
Change-Id: Ia39ad8bd509088a81cc77f7a76e23185d40a5765
GitHub-Last-Rev: 3be0cc1b15
GitHub-Pull-Request: golang/go#56431
Reviewed-on: https://go-review.googlesource.com/c/go/+/445555
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This avoids allocating an overly large slice for corrupt input.
No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
Updates #33121.
Change-Id: Ie2d947a3865d3499034286f2d08d3e3204015f3e
GitHub-Last-Rev: 6c62fc3cec
GitHub-Pull-Request: golang/go#56405
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LLVM recently introduced ZSTD compression for ELF sections. The error
message when failing to read the compressed section calls this
COMPRESS_ZLIB+2 while it should report it as COMPRESS_ZLIB+1.
Change-Id: I869aa69baf0c8c86665475b47343c790587cb39b
Reviewed-on: https://go-review.googlesource.com/c/go/+/443035
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Adds a package level doc comment to the debug/dwarf, debug/elf,
debug/macho, debug/pe, and debug/plan9obj noting that these packages
are not designed to be hardened against adversarial inputs.
Change-Id: I678d01bcdc8ad01c23805f09cc59e64cec6c3f76
Reviewed-on: https://go-review.googlesource.com/c/go/+/435417
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Reviewed-by: Julie Qiu <julieqiu@google.com>
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No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
Fixes#56129
Change-Id: I6c81933781384c5e2c8ba0fd99cec50455b9664a
Reviewed-on: https://go-review.googlesource.com/c/go/+/441976
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When it calculates the smallest n such that:
n >= i && n % buildInfoAlign == 0
the expression should be
(i+buildInfoAlign-1)&^(buildInfoAlign-1)
instead of
(i+buildInfoAlign-1)&^buildInfoAlign
Fixes#54968.
Change-Id: Ibb7bdf568a521545b2609acc85e2ab4e05da5dae
GitHub-Last-Rev: 479ebc140a
GitHub-Pull-Request: golang/go#54971
Reviewed-on: https://go-review.googlesource.com/c/go/+/429815
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No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
Fixes#55948
Change-Id: I7ba40ba928d2a14d4ac5b39f966173f3868d4729
Reviewed-on: https://go-review.googlesource.com/c/go/+/436876
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The suffix should be 34 not 28. I misread the name because the
reloc listed before these two in the ABI is named "R_PC64_PCREL28".
Updates #54345
Change-Id: Ie8238f55e441c787d70ead58e0a177c650f8b89e
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An SHT_NOBITS section contains no bytes and occupies no space in the
file. This change makes it return an error on reading from this section
so that it will force the caller to check for an SHT_NNOBITS section.
We have considered another option to return "nil, nil" for the Data
method. It's abandoned because it might lead a program to simply do
the wrong thing, thinking that the section is empty.
Please note that it breaks programs which expect a byte slice with the
length described by the sh_size field. There are two reasons to
introduce this breaking change: 1. SHT_NOBITS means no data and it's
unnecessary to allocate memory for it; 2. it could result in an OOM if
the file is corrupted and has a huge sh_size.
Fixes#54967.
Change-Id: I0c3ed4e097214fe88413d726a89122105ad45d4f
GitHub-Last-Rev: 994c12d9da
GitHub-Pull-Request: golang/go#54994
Reviewed-on: https://go-review.googlesource.com/c/go/+/429601
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The spec https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html
states:
1. e_shnum: If the number of sections is greater than or equal to
SHN_LORESERVE (0xff00), this member has the value zero and the actual
number of section header table entries is contained in the sh_size
field of the section header at index 0.
2. e_shstrndx: If the section name string table section index is
greater than or equal to SHN_LORESERVE (0xff00), this member has the
value SHN_XINDEX (0xffff) and the actual index of the section name
string table section is contained in the sh_link field of the section
header at index 0.
This CL makes these changes to support files with >= 0xff00 sections:
1. if shoff > 0 && shnum == 0, read sh_size from the initial section
header entry as shnum.
2. if shstrndx == SHN_XINDEX, read sh_link from the initial section
header entry as shstrndx.
It returns an error if the type of the initial section is not SHT_NULL.
A file with >= 0xff00 sections is too big to include in the repository,
so the test case constructs one on the fly, with some of the sections
zeroed out.
While here, remove the unnecessary use of reflect.DeepEqual in the test.
Fixes#55294.
Change-Id: I15ec43612c7cce6e8decfe4e81da3a5b16de47f7
GitHub-Last-Rev: 797c16480b
GitHub-Pull-Request: golang/go#55295
Reviewed-on: https://go-review.googlesource.com/c/go/+/432255
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No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
Fixes#53529
Change-Id: I318c87795e545fe5a006d16b4d361cd4bf5d502d
Reviewed-on: https://go-review.googlesource.com/c/go/+/434936
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This avoids allocating an overly large slice for corrupt input.
Change the saferio.SliceCap function to take a pointer to the element type,
so that we can handle slices of interface types. This revealed that a
couple of existing calls were actually incorrect, passing the slice type
rather than the element type.
No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
Fixes#55338
Change-Id: I3c1724183cc275d4981379773b0b8faa01a9cbd2
Reviewed-on: https://go-review.googlesource.com/c/go/+/433296
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Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
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Changes:
1. When e_shstrndx holds the value SHN_UNDEF (0), the file has no section
name string table. In this case, do not try to set section names .
2. e_shstrndx should point to an SHT_STRTAB section. If it does not, returns
an error.
Reference:
https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html
Updates #54967.
Change-Id: Ic8f228061d996fd7845dfa630719a1ba12d2bb60
GitHub-Last-Rev: aeb70ca8a0
GitHub-Pull-Request: golang/go#55001
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The PPC64 ELFv2 supplement version 1.5 defines a handful of
new relocation types, similarly some were not added.
Fixes#54345
Change-Id: Id39b29d404298fca4a10ccf1e96b5964dc452c9e
Reviewed-on: https://go-review.googlesource.com/c/go/+/425555
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Reviewed-by: Heschi Kreinick <heschi@google.com>
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Change-Id: I59db11212758b478248f34c031501a167335348c
Reviewed-on: https://go-review.googlesource.com/c/go/+/428257
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Avoid allocating large amounts of memory for corrupt input.
No test case because the problem can only happen for invalid data.
Let the fuzzer find cases like this.
Fixes#54780
Change-Id: Icdacb16bef7d29ef431da52e6d1da4e883a3e050
Reviewed-on: https://go-review.googlesource.com/c/go/+/427434
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Avoid allocating large amounts of memory for corrupt input.
No test case because the problem can only happen for invalid data.
Let the fuzzer find cases like this.
Change-Id: I2d1745200611f0af06ca58adcc3e2309ad6742d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/425882
Run-TryBot: Dan Kortschak <dan@kortschak.io>
Auto-Submit: Dan Kortschak <dan@kortschak.io>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
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Change-Id: Iebe31b91c6e81438120f50a8089a8efca3d5339d
Reviewed-on: https://go-review.googlesource.com/c/go/+/426115
Run-TryBot: Dan Kortschak <dan@kortschak.io>
Run-TryBot: Ian Lance Taylor <iant@google.com>
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uint32(sz) != n*uint32(ddSz) can go wrong if
the RHS overflows, so do it in wider precision.
Fixes#54640.
Change-Id: I776563330e46de6cdacd4055f6ff08e7de67797f
Reviewed-on: https://go-review.googlesource.com/c/go/+/425364
Reviewed-by: Dan Kortschak <dan@kortschak.io>
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R_PPC64_SECTOFF_LO_DS is defined as reloc 62 on all PPC64 ELF ABIs.
Fixes#53356
Change-Id: I5fabf6be32f3310c5aed47d4d654e05fb7bc9de0
Reviewed-on: https://go-review.googlesource.com/c/go/+/411915
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
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Avoid allocating large amounts of memory for corrupt input.
No test case because the problem can only happen for invalid data.
Let the fuzzer find cases like this.
Change-Id: Ib09d5fea54aabcb6941e541b42689222fba69632
Reviewed-on: https://go-review.googlesource.com/c/go/+/425303
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Dan Kortschak <dan@kortschak.io>
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Reviewed-by: hopehook <hopehook@qq.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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No debug/plan9obj test case because the problem can only happen for
invalid data. Let the fuzzer find cases like this.
For #47653Fixes#54585
Change-Id: I8d3e15725b9bc09dd0e6f2750769987021f5e982
Reviewed-on: https://go-review.googlesource.com/c/go/+/425115
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Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
If narch is very large we would allocate a lot of memory for seenArches.
In practice we aren't going to see many different architectures so
don't bother to specify a size for the seenArches map.
No debug/macho test case because the problem can only happen for
invalid data. Let the fuzzer find cases like this.
For #47653
For #52523
Change-Id: I5a3b0e3aa6172ddffd6f44d9ae513c39a00d8764
Reviewed-on: https://go-review.googlesource.com/c/go/+/425114
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Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Change-Id: Idc1f8b3fb6b4b2fdcc6dade048cc14c53715319f
Reviewed-on: https://go-review.googlesource.com/c/go/+/424197
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Avoid allocating large amounts of memory for corrupt input.
No test case because the problem can only happen for invalid data.
Let the fuzzer find cases like this.
Fixes#52521
Change-Id: I6a046f2e28e1255cf773ce135c5bb2b967ef43e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/414234
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dan Kortschak <dan@kortschak.io>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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No test case because the problem can only happen for invalid data.
Let the fuzzer find cases like this.
For #47653Fixes#53530
Change-Id: If1cebbbcabb188fec8be30ef043c8c4c935a9564
Reviewed-on: https://go-review.googlesource.com/c/go/+/413995
Run-TryBot: Ian Lance Taylor <iant@google.com>
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