cpython

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

History

Miss Islington (bot) 055e6b2891

[3.15] gh-148891: prevent crash in HAMT caused by GC during traverse (GH-148928) (#161593 )

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>

2026-11-08 00:01:24 +00:00

clinic

[3.15] gh-142349: Simplify lazy import resolution (GH-158282) (#158569 )

2026-10-01 16:56:39 +00:00

frozen_modules

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_contextvars.c

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_warnings.c

[3.15] gh-159739: Fix reference and error handling in warnings (GH-159758) (#160022 )

2026-10-21 11:55:12 -07:00

asdl.c

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asm_trampoline_aarch64.h

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asm_trampoline.S

[3.15] gh-128883: Store ELF perf trampoline templates in read-only data (GH-160366) (#160490 )

2026-10-23 21:01:06 +00:00

assemble.c

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ast_preprocess.c

[3.15] gh-152708: Fix AST generation asymmetry for unary positive in match statements (GH-152712) (#158079 )

2026-09-24 23:51:39 +01:00

ast_unparse.c

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ast.c

[3.15] gh-152708: Fix AST generation asymmetry for unary positive in match statements (GH-152712) (#158079 )

2026-09-24 23:51:39 +01:00

bltinmodule.c

[3.15] gh-161229: Accept None for globals and locals in __lazy_import__() (GH-161231) (#161315 )

2026-11-04 14:28:37 +00:00

bootstrap_hash.c

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brc.c

[3.15] gh-157838: Merge biased refcounts on behalf of detached threads (#157839 ) (#158011 )

2026-09-29 10:13:34 +03:00

bytecodes.c

[3.15] gh-151818: Fix double-free in _CALL_LIST_APPEND on allocation failure (GH-151826) (#160200 )

2026-10-22 06:23:06 -07:00

ceval_gil.c

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ceval_macros.h

[3.15] gh-129752: Don't update adaptive counters when TLBC=0 in free-threading. (gh-155497) (#155647 )

2026-08-26 14:52:45 +09:00

ceval.c

[3.15] gh-159136: Avoid stop-the-world when setting function name attributes (gh-159269) (gh-159725)

2026-10-29 15:17:50 -07:00

ceval.h

[3.15] gh-159136: Avoid stop-the-world when setting function name attributes (gh-159269) (gh-159725)

2026-10-29 15:17:50 -07:00

codecs.c

[3.15] gh-159739: Hold the codec registry lock while unregistering (GH-160168) (#160292 )

2026-10-22 15:26:02 -07:00

codegen.c

[3.15] gh-143493: fix cleanup on errors in codegen_comprehension (GH-156374) (GH-156962)

2026-10-13 11:51:33 +02:00

compile.c

[3.15] gh-156459: Fix cleanup on error in compiler_set_qualname (GH-156462) (GH-156574)

2026-10-10 13:58:08 +03:00

condvar.h

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config_common.h

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context.c

[3.15] gh-148891: prevent crash in HAMT caused by GC during traverse (GH-148928) (#161593 )

2026-11-08 00:01:24 +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

[3.15] Fix unchecked NULL returns in several C modules (GH-160213) (#160262 )

2026-10-22 21:38:32 +01:00

dtoa.c

[3.15] gh-158446: Reject float format precision near INT_MAX (GH-158474) (#158476 )

2026-09-30 11:18:45 +03:00

dup2.c

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dynamic_annotations.c

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dynload_hpux.c

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dynload_shlib.c

[3.15] gh-122931: Allow stable abi3 API extensions to include a multiarch tuple in the filename (GH-152461) (GH-154772)

2026-07-29 10:21:30 +02:00

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

[3.15] gh-156204: Guard recursion in PyErr_GivenExceptionMatches (GH-156205) (GH-158622)

2026-10-11 07:20:28 +00:00

executor_cases.c.h

[3.15] gh-151818: Fix double-free in _CALL_LIST_APPEND on allocation failure (GH-151826) (#160200 )

2026-10-22 06:23:06 -07:00

fileutils.c

[3.15] gh-158893: Make os.strerror() thread-safe (#159120 )

2026-10-10 22:08:49 +02:00

flowgraph.c

[3.15] gh-130279: Fix missing exception handlers for jumps in loops (GH-159460) (#159698 )

2026-10-19 08:43:26 +00:00

frame.c

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frozen.c

[3.15] gh-148750: Unfreeze encodings module to avoid import errors with zipped stdlib (GH-156183) (#156328 )

2026-08-27 13:51:03 +03:00

frozenmain.c

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future.c

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gc_free_threading.c

[3.15] gh-159111: Update vendored mimalloc to v2.5.2 (gh-159112) (gh-160178)

2026-10-22 09:55:05 -07:00

gc_gil.c

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gc.c

[3.15] Restore deferred backports for 3.15.1, including GH-158874 (#158882 )

2026-10-11 15:42:59 +01:00

generated_cases.c.h

[3.15] gh-151818: Fix double-free in _CALL_LIST_APPEND on allocation failure (GH-151826) (#160200 )

2026-10-22 06:23:06 -07:00

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

[3.15] gh-155515: Use GC tracking for HAMT iterators (GH-155517) (#155697 )

2026-08-17 03:58:10 +00:00

hashtable.c

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import.c

[3.15] gh-159652: Fix import lock leak when the C stack is nearly exhausted (GH-159660) (GH-160779)

2026-10-27 22:17:27 +00:00

importdl.c

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index_pool.c

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initconfig.c

[3.15] gh-160962: Fix PyInitConfig_SetStr() with NULL value (GH-161258) (#161291 )

2026-11-04 03:41:35 +01:00

instruction_sequence.c

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instrumentation.c

[3.15] gh-158121: Preserve instruction events when line monitoring is disabled (GH-158456) (#159733 )

2026-10-19 19:47:56 +00:00

interpconfig.c

[3.15] gh-159739: Handle interpreter configuration encoding errors (GH-159747) (#159843 )

2026-10-20 11:12:17 -07:00

intrinsics.c

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jit_publish.c

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jit_unwind.c

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jit.c

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legacy_tracing.c

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lock.c

[3.15] gh-158973: Reset the warnings lock after fork in the child (gh-158974) (gh-159614)

2026-10-19 14:54:15 -07:00

marshal.c

[3.15] gh-159111: Update vendored mimalloc to v2.5.2 (gh-159112) (gh-160178)

2026-10-22 09:55:05 -07:00

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

[3.15] gh-157468: Validate correct builtins used under JIT (GH-157766) (GH-159048)

2026-10-12 16:31:15 +02:00

optimizer_cases.c.h

[3.15] gh-157468: Validate correct builtins used under JIT (GH-157766) (GH-159048)

2026-10-12 16:31:15 +02:00

optimizer_symbols.c

[3.15] gh-157468: Validate correct builtins used under JIT (GH-157766) (GH-159048)

2026-10-12 16:31:15 +02:00

optimizer.c

[3.15] Backport GH-148874: Make sure that mngr.__exit__() is always called in a with statement (GH-150911) (GH-154830)

2026-08-03 16:23:34 +01:00

parking_lot.c

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pathconfig.c

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perf_jit_trampoline.c

[3.15] gh-156114: Fix crash in perf trampoline with unencodable code names (GH-156300) (#157773 )

2026-09-18 21:37:15 +00:00

perf_trampoline.c

[3.15] gh-161288: Fix perf trampoline crash on UBSan builds (GH-161294) (#161348 )

2026-11-05 00:51:22 +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

[3.15] Fix ignored error returns in sys initialization, _ctypes and _interpchannels (GH-160614) (#160711 )

2026-10-26 19:49:41 +00:00

pymath.c

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pystate.c

[3.15] gh-159111: Update vendored mimalloc to v2.5.2 (gh-159112) (gh-160178)

2026-10-22 09:55:05 -07:00

pystats.c

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pystrcmp.c

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pystrhex.c

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pystrtod.c

[3.15] gh-158446: Reject float format precision near INT_MAX (GH-158474) (#158476 )

2026-09-30 11:18:45 +03:00

Python-ast.c

[3.15] gh-156909: Fix AST.__repr__ call getting the _fields attribute (GH-157490) (GH-157596)

2026-10-12 14:08:25 +02:00

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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record_functions.c.h

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remote_debug.h

[3.15] Restore deferred backports for 3.15.1, including GH-158874 (#158882 )

2026-10-11 15:42:59 +01:00

remote_debugging.c

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slots_generated.c

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slots.c

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slots.toml

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specialize.c

[3.15] gh-152075: Avoid lock contention in _Py_Specialize_LoadGlobal under free threading (gh-153720) (#158905 )

2026-10-10 16:03:02 +05:30

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

[3.15] gh-160299: Preserve references from inlined comprehensions (GH-156819) (#160413 )

2026-10-23 10:41:48 -07:00

sysmodule.c

[3.15] gh-157247: Block perf trampoline activation when the main interpreter's JIT is enabled (GH-157258) (#157324 )

2026-09-23 01:11:38 +01:00

thread_nt.h

[3.15] gh-134745: Remove dead code in thread_nt.h left by gh-134747 (GH-154338) (#154655 )

2026-07-24 23:01:47 +00:00

thread_pthread_stubs.h

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thread_pthread.h

[3.15] gh-157415: Fix data race in pthread wrapper (#157430 ) (#159277 )

2026-10-12 23:32:24 +00:00

thread.c

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tier2_engine.md

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traceback.c

[3.15] gh-113318: Fix @getter and @setter in Argument Clinic (GH-155778) (GH-156010)

2026-10-09 20:54:35 +03:00

tracemalloc.c

[3.15] gh-155725: Remove PyGILState_Ensure usage from tracemalloc (GH-156409) (#156628 )

2026-08-31 09:53:56 +03:00

uniqueid.c

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vm-state.md

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README

Miscellaneous source files for the main Python shared library