AddressSanitizer reports leak for empty main function on macOS for aarch64-apple-darwin
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Nobody has claimed this yet.
A-sanitizers
C-bug
llvm-fixed-upstream
O-AArch64
O-macos
- Dominant language
- Rust
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Description
Code:
fn main() {}
Command:
RUSTFLAGS="-Z sanitizer=address" ASAN_OPTIONS=detect_leaks=1 cargo +nightly run -Z build-std --target aarch64-apple-darwin
I expected to see this happen: nothing.
Instead, this happened: leak reported, full report below.
Meta
rustc --version --verbose:
rustc 1.78.0-nightly (0ecbd0605 2024-02-25)
binary: rustc
commit-hash: 0ecbd0605770f45c9151715e66ba2b3cae367fcb
commit-date: 2024-02-25
host: aarch64-apple-darwin
release: 1.78.0-nightly
LLVM version: 18.1.0
Message
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.00s
Running `target/debug/leak_test`
=================================================================
==42548==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 120 byte(s) in 1 object(s) allocated from:
#0 0x104e92ea4 in malloc+0x6c (librustc-nightly_rt.asan.dylib:arm64+0x4eea4)
#1 0x18ce23788 in dyld4::RuntimeState::_instantiateTLVs(unsigned long)+0xd8 (dyld:arm64+0xfffffffffff5d788)
#2 0x6a5f00018d19e688 (<unknown module>)
#3 0x57380001045bd698 (<unknown module>)
#4 0x1045b9af8 in std::rt::lang_start_internal::h1eb653699f840ea4+0x294 (leak_test:arm64+0x100015af8)
#5 0x1045a5624 in std::rt::lang_start::h2668e3698e5b2b03 rt.rs:165
#6 0x1045a5930 in main+0x20 (leak_test:arm64+0x100001930)
#7 0x18ce150dc (<unknown module>)
#8 0xbc4d7ffffffffffc (<unknown module>)
Direct leak of 72 byte(s) in 1 object(s) allocated from:
#0 0x104e92ea4 in malloc+0x6c (librustc-nightly_rt.asan.dylib:arm64+0x4eea4)
#1 0x18cdca65c in _fetchInitializingClassList(bool)+0x2c (libobjc.A.dylib:arm64+0xa65c)
#2 0x187280018cdca530 (<unknown module>)
#3 0x803d80018cdca374 (<unknown module>)
#4 0xfa5380018cdca1ec (<unknown module>)
#5 0xf91580018cdca1ec (<unknown module>)
#6 0x9f0a00018cdca1ec (<unknown module>)
#7 0xcd5900018cde7300 (<unknown module>)
#8 0x8d1a00018cdc9dc0 (<unknown module>)
#9 0x441c00018cdc9760 (<unknown module>)
#10 0xda1d00018ceab444 (<unknown module>)
#11 0x920580018ceaa800 (<unknown module>)
#12 0xe635800199a43678 (<unknown module>)
#13 0xad5080018ce31a20 (<unknown module>)
#14 0xf14a00018ce77324 (<unknown module>)
#15 0x192000018ce6a664 (<unknown module>)
#16 0x121780018ce112f8 (<unknown module>)
#17 0x120700018ce6969c (<unknown module>)
#18 0x9f7f00018ce76e38 (<unknown module>)
#19 0xfa3f80018ce2db34 (<unknown module>)
#20 0x4f3180018ce37924 (<unknown module>)
#21 0xce4d00018ce5335c (<unknown module>)
#22 0xe96b00018ce15f9c (<unknown module>)
#23 0x525300018ce14ed8 (<unknown module>)
#24 0xbc4d7ffffffffffc (<unknown module>)
Indirect leak of 32 byte(s) in 1 object(s) allocated from:
#0 0x104e9317c in calloc+0x74 (librustc-nightly_rt.asan.dylib:arm64+0x4f17c)
#1 0x18cdca6b8 in _fetchInitializingClassList(bool)+0x88 (libobjc.A.dylib:arm64+0xa6b8)
#2 0x187280018cdca530 (<unknown module>)
#3 0x803d80018cdca374 (<unknown module>)
#4 0xfa5380018cdca1ec (<unknown module>)
#5 0xf91580018cdca1ec (<unknown module>)
#6 0x9f0a00018cdca1ec (<unknown module>)
#7 0xcd5900018cde7300 (<unknown module>)
#8 0x8d1a00018cdc9dc0 (<unknown module>)
#9 0x441c00018cdc9760 (<unknown module>)
#10 0xda1d00018ceab444 (<unknown module>)
#11 0x920580018ceaa800 (<unknown module>)
#12 0xe635800199a43678 (<unknown module>)
#13 0xad5080018ce31a20 (<unknown module>)
#14 0xf14a00018ce77324 (<unknown module>)
#15 0x192000018ce6a664 (<unknown module>)
#16 0x121780018ce112f8 (<unknown module>)
#17 0x120700018ce6969c (<unknown module>)
#18 0x9f7f00018ce76e38 (<unknown module>)
#19 0xfa3f80018ce2db34 (<unknown module>)
#20 0x4f3180018ce37924 (<unknown module>)
#21 0xce4d00018ce5335c (<unknown module>)
#22 0xe96b00018ce15f9c (<unknown module>)
#23 0x525300018ce14ed8 (<unknown module>)
#24 0xbc4d7ffffffffffc (<unknown module>)
Indirect leak of 16 byte(s) in 1 object(s) allocated from:
#0 0x104e9317c in calloc+0x74 (librustc-nightly_rt.asan.dylib:arm64+0x4f17c)
#1 0x18cdca694 in _fetchInitializingClassList(bool)+0x64 (libobjc.A.dylib:arm64+0xa694)
#2 0x187280018cdca530 (<unknown module>)
#3 0x803d80018cdca374 (<unknown module>)
#4 0xfa5380018cdca1ec (<unknown module>)
#5 0xf91580018cdca1ec (<unknown module>)
#6 0x9f0a00018cdca1ec (<unknown module>)
#7 0xcd5900018cde7300 (<unknown module>)
#8 0x8d1a00018cdc9dc0 (<unknown module>)
#9 0x441c00018cdc9760 (<unknown module>)
#10 0xda1d00018ceab444 (<unknown module>)
#11 0x920580018ceaa800 (<unknown module>)
#12 0xe635800199a43678 (<unknown module>)
#13 0xad5080018ce31a20 (<unknown module>)
#14 0xf14a00018ce77324 (<unknown module>)
#15 0x192000018ce6a664 (<unknown module>)
#16 0x121780018ce112f8 (<unknown module>)
#17 0x120700018ce6969c (<unknown module>)
#18 0x9f7f00018ce76e38 (<unknown module>)
#19 0xfa3f80018ce2db34 (<unknown module>)
#20 0x4f3180018ce37924 (<unknown module>)
#21 0xce4d00018ce5335c (<unknown module>)
#22 0xe96b00018ce15f9c (<unknown module>)
#23 0x525300018ce14ed8 (<unknown module>)
#24 0xbc4d7ffffffffffc (<unknown module>)
SUMMARY: AddressSanitizer: 240 byte(s) leaked in 4 allocation(s).
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the minimal fn main() {} case with the reported nightly cargo +nightly run -Z build-std --target aarch64-apple-darwin command and AddressSanitizer leak detection enabled. The report names no repository file or test; done means determining the cause and ensuring this empty program no longer reports the 240-byte leak, or documenting the confirmed platform limitation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100