Issues

• DriveInfo should support folder-mounted drives on Windows

  area-System.IOuntriaged
  dotnet/runtime#136065 · Filter by author huoyaoyuan opened on Oct 19, 2026
  1

• [release/8.0] DeepNonRootDecryptedXml_Throws times out on Windows x86 checked

  area-System.Securityuntriaged
  dotnet/runtime#136061 · Filter by author ViveliDuCh opened on Oct 19, 2026
  1

  

• [release/8.0] CertificateContentType fails for PKCS#7 with compatibility switch enabled on Unix

  area-System.Securityuntriaged
  dotnet/runtime#136062 · Filter by author ViveliDuCh opened on Oct 19, 2026
  1

  

• [release/8.0] Named mutex tests fail on Mono

  area-System.IOuntriaged
  dotnet/runtime#136060 · Filter by author ViveliDuCh opened on Oct 19, 2026
  1

  

• TensorPrimitives.Exp10 and Exp2 for double are off by hundreds of ulps on the vectorized path

  area-System.Numericsuntriaged
  dotnet/runtime#136058 · Filter by author pcshrosbree opened on Oct 19, 2026
  1

• ILVerify: list the error names in ilverify --help --verbose?

  area-Tools-ILVerificationuntriaged
  dotnet/runtime#136056 · Filter by author pcshrosbree opened on Oct 19, 2026
  1

• Test failure: System.Security.Cryptography.Xml.Tests.EncryptedXmlTests.EncryptedXml_DecryptDocument_MaxCount_Default

  area-System.Securityblocking-clean-ci-optionalKnown Build Erroruntriaged
  dotnet/runtime#136054 · Filter by author VincentBu opened on Oct 19, 2026
  1

• Test failure: profiler/elt/slowpatheltleave/slowpatheltleave.cmd

  area-Diagnostics-coreclrblocking-clean-ci-optionalKnown Build Erroruntriaged
  dotnet/runtime#136053 · Filter by author VincentBu opened on Oct 19, 2026
  1

• Assert failure: (CheckInstrWord(wOpcode, X86_INSTR_w_LEA_ESP_EBP_BYTE_OFFSET) && (val == *(PTR_SBYTE)(base+2)) && CAN_COMPRESS(val)) || (CheckInstrWord(wOpcode, X86_INSTR_w_LEA_ESP_EBP_DWORD_OFFSET) && (val == *(PTR_INT32)(base+2)) && !CAN_COMPRESS(val))

  area-CodeGen-coreclrblocking-clean-ci-optionalKnown Build Erroruntriaged
  dotnet/runtime#136052 · Filter by author VincentBu opened on Oct 19, 2026
  3

• [wasm][R2R] Interpreted managed JIT helpers depend on per-image R2R-to-interpreter thunks

  area-ReadyToRununtriaged
  dotnet/runtime#136051 · Filter by author lewing opened on Oct 19, 2026
  2

• Test failure: GC/Regressions/Github/Runtime_76219/Runtime_76219/Runtime_76219.cmd

  area-Infrastructureblocking-clean-ci-optionalKnown Build Erroruntriaged
  dotnet/runtime#136049 · Filter by author VincentBu opened on Oct 19, 2026
  2

• Test failure: JIT/opt/Vectorization/InsertScalarFromVectorDisasm/InsertScalarFromVectorDisasm.cmd

  area-CodeGen-coreclrblocking-clean-ci-optionalKnown Build Erroruntriaged
  dotnet/runtime#136048 · Filter by author VincentBu opened on Oct 19, 2026
  1

• [wasi][coreCLR] Track out-of-process runtime tests disabled on WASI

  arch-wasmarea-Infrastructure-coreclros-wasiuntriaged
  dotnet/runtime#136046 · Filter by author lewing opened on Oct 19, 2026
  1

• Test failure: System.IO.Tests.RandomAccess_NonSeekable_AsyncHandles.CancellationIsSupported

  area-System.Threading.Tasksblocking-clean-ci-optionalKnown Build Erroruntriaged
  dotnet/runtime#136045 · Filter by author VincentBu opened on Oct 19, 2026
  1

• Assert failure: pRD->_pThread->IsExecutingOnAltStack() || PTR_VOID(pRD->SP) < pRD->_pThread->GetCachedStackBase() in Regression_PdbOnly_r_2 test

  area-Infrastructureblocking-clean-ci-optionalKnown Build Erroruntriaged
  dotnet/runtime#136044 · Filter by author VincentBu opened on Oct 19, 2026
  1

• JIT: static field read after a beforefieldinit static constructor can observe the pre-constructor value

  area-CodeGen-coreclruntriaged
  dotnet/runtime#136042 · Filter by author lewing opened on Oct 19, 2026
  1

• [wasm][R2R] JIT asserts "block order disagrees with preorder num" when an unremovable block becomes unreachable

  arch-wasmarea-CodeGen-coreclr
  dotnet/runtime#136041 · Filter by author lewing opened on Oct 19, 2026 · 12.0.0
  2

  

• [JIT] Idea: rebalance chains of relational compares against constants (switch when guards) into a binary search

  area-CodeGen-coreclruntriaged
  dotnet/runtime#136039 · Filter by author kamronbatman opened on Oct 18, 2026
  1

• [dotnet 11 rc2, linux-bionic-arm64]: Segmentation fault, no matter what

  area-Hostregression-from-last-releaseuntriaged
  dotnet/runtime#136036 · Filter by author TheKingFireS opened on Oct 18, 2026
  1

• JIT: endfinally in a catch handler or filter crashes the optimizing JIT on .NET 10 instead of throwing InvalidProgramException

  area-CodeGen-coreclruntriaged
  dotnet/runtime#136035 · Filter by author pcshrosbree opened on Oct 18, 2026
  1

• riscv64: 64-bit constant in method data truncated to 4 bytes (ulong division by constant gives wrong results)

  arch-riscvarea-CodeGen-coreclruntriaged
  dotnet/runtime#136034 · Filter by author glomdom opened on Oct 18, 2026
  1

• SslStream: malformed ClientHellos crash servers on 8.0/9.0/10.0 — #126352 bounds guards not backported (5 repro payloads)

  area-System.Net.Securityuntriaged
  dotnet/runtime#136032 · Filter by author argus-metis opened on Oct 18, 2026
  2

• [NativeAOT, Linux] Lock statics initialization re-enters UTF8Encoding's class constructor and fails fast

  area-NativeAOT-coreclruntriaged
  dotnet/runtime#136031 · Filter by author CurtHagenlocher opened on Oct 18, 2026
  2

• ImmutableList<T>.Reverse() takes O(n log n) time: it swaps the ends pair by pair through ReplaceAt

  area-System.Collectionstenet-performance
  dotnet/runtime#136030 · Filter by author xperiandri opened on Oct 18, 2026 · Future
  1

  

• ImmutableArray<T>.Builder.InsertRange returns unexpected values when it use the same instance

  area-System.Collectionsuntriaged
  dotnet/runtime#136026 · Filter by author prozolic opened on Oct 18, 2026
  1