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[asan] use-after-scope not detected for VLAs

compiler-rt:asanAddress sanitizerAddress sanitizer

Status: Open.

#168342 In llvm/llvm-project;

· goussepi opened on Nov 17, 2025

-fsanitize=memtag-globals doesn't tag global variables in the presence of __attribute__ section

compiler-rt:asanAddress sanitizerAddress sanitizer

Status: Open.

#166380 In llvm/llvm-project;

· tarcisiofischer opened on Nov 4, 2025

<code>lld</code> says <code>LLVM ERROR: Broken module found, compilation aborted!</code> in <code>vmlinux.o</code> on compiling Linux 6.17.6.

compiler-rt:asanAddress sanitizerAddress sanitizer

crashPrefer [crash-on-valid] or [crash-on-invalid]Prefer [crash-on-valid] or [crash-on-invalid]

LTOLink time optimization (regular/full LTO or ThinLTO)Link time optimization (regular/full LTO or ThinLTO)

Status: Open.

Bug

#166256 In llvm/llvm-project;

· dreirund opened on Nov 3, 2025

AddressSanitizer CHECK failed with RISC-V program

compiler-rt:asanAddress sanitizerAddress sanitizer

Status: Open.

#164803 In llvm/llvm-project;

· cardigan1008 opened on Oct 23, 2025

ASAN check Failed

compiler-rt:asanAddress sanitizerAddress sanitizer

questionA question, not bug report. Check out https://llvm.org/docs/GettingInvolved.html instead!A question, not bug report. Check out https://llvm.org/docs/GettingInvolved.html instead!

Status: Open.

#163819 In llvm/llvm-project;

· utkarshsasmit-cmd opened on Oct 16, 2025

[sanitizers][windows] Add report on intercept fail to more Rtl* functions.

compiler-rt

compiler-rt:asanAddress sanitizerAddress sanitizer

compiler-rt:sanitizer

Status: Open (in progress).

llvm/llvm-projectnumber 163818

#163818 In llvm/llvm-project;

· bernhardu opened on Oct 16, 2025

[asan win] Releasing memory via HeapDestroy does not work (affects only windows_hook_rtl_allocators=1)

compiler-rt:asanAddress sanitizerAddress sanitizer

platform:windows

Status: Open.

#163804 In llvm/llvm-project;

· bernhardu opened on Oct 16, 2025

Python-related cleanups

clangClang issues not falling into any other categoryClang issues not falling into any other category

clang-tools-extra

clang:as-a-librarylibclang and C++ APIlibclang and C++ API

clang:driver'clang' and 'clang++' user-facing binaries. Not 'clang-cl''clang' and 'clang++' user-facing binaries. Not 'clang-cl'

clang:static analyzer

clangd

cmakeBuild system in general and CMake in particularBuild system in general and CMake in particular

compiler-rt

compiler-rt:asanAddress sanitizerAddress sanitizer

compiler-rt:fuzzer

compiler-rt:sanitizer

libc

libc++libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.

lld

lld:MachO

lldb

llvm-lit

mlir

openmp:libompOpenMP host runtimeOpenMP host runtime

testing-tools

Status: Open (in progress).

llvm/llvm-projectnumber 163566

#163566 In llvm/llvm-project;

· rossburton opened on Oct 15, 2025

[ASan] Document define to disable container overflow checks at compile time.

clangClang issues not falling into any other categoryClang issues not falling into any other category

compiler-rt

compiler-rt:asanAddress sanitizerAddress sanitizer

compiler-rt:sanitizer

Status: Open (in progress).

llvm/llvm-projectnumber 163468

#163468 In llvm/llvm-project;

· padriff opened on Oct 14, 2025

[clang] -fsanitize=address causes Assertion `isa&lt;Function&gt;(Callee) || isa&lt;GlobalAlias&gt;(Callee)' failed.

compiler-rt:asanAddress sanitizerAddress sanitizer

crashPrefer [crash-on-valid] or [crash-on-invalid]Prefer [crash-on-valid] or [crash-on-invalid]

Status: Open.

Bug

#163040 In llvm/llvm-project;

· k-arrows opened on Oct 12, 2025

Add API to temporalily disable usage of ASAN's fake stack

compiler-rt

compiler-rt:asanAddress sanitizerAddress sanitizer

compiler-rt:sanitizer

Status: Open (in progress).

llvm/llvm-projectnumber 160135

#160135 In llvm/llvm-project;

· happyCoder92 opened on Sep 22, 2025

ASan run twice under fat lto

compiler-rt:asanAddress sanitizerAddress sanitizer

LTOLink time optimization (regular/full LTO or ThinLTO)Link time optimization (regular/full LTO or ThinLTO)

Status: Open.

Bug

#159629 In llvm/llvm-project;

· PiJoules opened on Sep 18, 2025