cpython

mirror of https://github.com/python/cpython.git synced 2026-11-09 06:00:54 +08:00

History

Miss Islington (bot) aee90465e5

[3.14] gh-148891: prevent crash in HAMT caused by GC during traverse (GH-148928) (#161592 )

gh-148891: prevent crash in HAMT caused by GC during traverse (GH-148928)

`_PyHamt_Assoc` allocates HAMT nodes, which can trigger GC. A weakref callback or finaliser fired during GC could re-enter `contextvar_set`, replacing `ctx->ctx_vars` via `Py_SETREF` and freeing the old HAMT while `_PyHamt_Assoc` was still traversing it, causing a use-after-free.

Hold a strong reference to `ctx->ctx_vars` during the `_PyHamt_Assoc` call, so that a re-entrant free cannot affect the HAMT being traversed.
(cherry picked from commit 1798d4fb3ca0e1cd8f9e6ab0ac99a0a9fb1f7527)

Co-authored-by: Thomas Kowalski <thom.kowa@gmail.com>

2026-11-07 23:57:31 +00:00

clinic

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frozen_modules

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_contextvars.c

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_warnings.c

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asdl.c

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asm_trampoline_aarch64.h

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asm_trampoline.S

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assemble.c

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ast_preprocess.c

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ast_unparse.c

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ast.c

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bltinmodule.c

[3.14] gh-150868: Fix sum() deallocating a float subclass as an exact float (GH-151063) (#161049 )

2026-11-01 20:57:24 +00:00

bootstrap_hash.c

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brc.c

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bytecodes.c

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ceval_gil.c

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ceval_macros.h

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ceval.c

[3.14] gh-159136: Avoid stop-the-world when setting function name attributes (gh-159269) (gh-159726)

2026-10-30 11:03:31 -07:00

codecs.c

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codegen.c

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compile.c

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condvar.h

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config_common.h

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context.c

[3.14] gh-148891: prevent crash in HAMT caused by GC during traverse (GH-148928) (#161592 )

2026-11-07 23:57:31 +00:00

critical_section.c

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crossinterp_data_lookup.h

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crossinterp_exceptions.h

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crossinterp.c

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dtoa.c

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dup2.c

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dynamic_annotations.c

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dynload_hpux.c

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dynload_shlib.c

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dynload_stub.c

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dynload_win.c

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emscripten_signal.c

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emscripten_syscalls.c

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emscripten_trampoline_inner.c

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emscripten_trampoline.c

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errors.c

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executor_cases.c.h

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fileutils.c

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flowgraph.c

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formatter_unicode.c

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frame.c

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frozen.c

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frozenmain.c

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future.c

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gc_free_threading.c

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gc_gil.c

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gc.c

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generated_cases.c.h

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getargs.c

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getcompiler.c

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getcopyright.c

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getopt.c

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getplatform.c

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getversion.c

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hamt.c

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hashtable.c

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import.c

[3.14] gh-159652: Fix import lock leak when the C stack is nearly exhausted (GH-159660) (GH-160780)

2026-10-27 22:12:45 +00:00

importdl.c

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index_pool.c

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initconfig.c

[3.14] gh-160962: Fix PyInitConfig_SetStr() with NULL value (GH-161258) (#161292 )

2026-11-04 03:41:38 +01:00

instruction_sequence.c

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instrumentation.c

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interpconfig.c

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intrinsics.c

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jit.c

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legacy_tracing.c

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lock.c

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marshal.c

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modsupport.c

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mysnprintf.c

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mystrtoul.c

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object_stack.c

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opcode_targets.h

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optimizer_analysis.c

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optimizer_bytecodes.c

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optimizer_cases.c.h

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optimizer_symbols.c

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optimizer.c

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parking_lot.c

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pathconfig.c

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perf_jit_trampoline.c

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perf_trampoline.c

[3.14] gh-161288: Fix perf trampoline crash on UBSan builds (GH-161294) (#161350 )

2026-11-05 00:51:29 +01:00

preconfig.c

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pyarena.c

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pyctype.c

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pyfpe.c

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pyhash.c

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pylifecycle.c

[3.14] Fix ignored error returns in sys initialization, _ctypes and _interpchannels (GH-160614) (#160712 )

2026-10-26 19:49:48 +00:00

pymath.c

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pystate.c

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pystrcmp.c

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pystrhex.c

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pystrtod.c

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Python-ast.c

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Python-tokenize.c

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pythonrun.c

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pytime.c

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qsbr.c

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README

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remote_debug.h

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remote_debugging.c

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specialize.c

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stackrefs.c

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stdlib_module_names.h

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structmember.c

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suggestions.c

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symtable.c

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sysmodule.c

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thread_nt.h

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thread_pthread_stubs.h

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thread_pthread.h

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thread.c

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tier2_engine.md

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traceback.c

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tracemalloc.c

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uniqueid.c

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vm-state.md

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README

Miscellaneous source files for the main Python shared library