Aniket
f3e069a7ab
gh-140025: Fix queue.SimpleQueue.__sizeof__() to return correct size ( #143137 )
2026-01-08 12:40:25 +00:00
Gleb Smirnoff
05406b221d
gh-142991: socketmodule: fixed getsockaddrlen() for PF_DIVERT socket ( #142993 )
2026-01-06 17:25:29 +01:00
Clay Dugo
d745b60ef2
gh-143474: Add os.RWF_ATOMIC constant (GH-143475)
2026-01-06 09:35:51 -05:00
Semyon Moroz
dd750b3485
gh-143331: Schedule to remove format "N" for Decimal ( #143372 )
2026-01-06 15:12:05 +02:00
Bénédikt Tran
9609574e7f
gh-143309: fix UAF in os.execve when the environment is concurrently mutated ( #143314 )
2026-01-03 23:05:57 +01:00
Aaron Wieczorek
6c53af18f6
gh-143308: fix UAF when PickleBuffer is concurrently mutated in a callback ( #143312 )
...
Co-authored-by: Aaron Wieczorek <woz@Aarons-MacBook-Pro.local>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
2026-01-03 23:01:59 +01:00
Pablo Galindo Salgado
27434c68f8
gh-138122: Skip threads on EPERM in blocking mode profiler (GH-143368)
...
When using blocking mode in the remote debugging profiler, ptrace calls
to seize threads can fail with EPERM if the thread has exited between
listing and attaching, is in a special kernel state, or is already being
traced. Previously this raised a RuntimeError that was caught by the
Python sampling loop,and retried indefinitely since EPERM is
a persistent condition that will not resolve on its own.
Treat EPERM the same as ESRCH by returning 1 (skip this thread) instead
of -1 (fatal error). This allows profiling to continue with the threads
that can be traced rather than entering an endless retry loop printing
the same error message repeatedly.
2026-01-03 15:37:16 +01:00
Kumar Aditya
abdbe0b807
gh-142615: disallow multiple initializations of asyncio.Task and asyncio.Future ( #142616 )
2026-01-03 13:27:02 +05:30
Bénédikt Tran
9712dc1d9e
gh-143310: fix crash in Tcl object conversion with concurrent mutations ( #143321 )
2026-01-02 10:51:05 +01:00
Gregory P. Smith
61fc72a4a4
gh-124951: Optimize base64 encode & decode for an easy 2-3x speedup [no SIMD] (GH-143262)
...
Optimize base64 encoding/decoding by eliminating loop-carried dependencies. Key changes:
- Add `base64_encode_trio()` and `base64_decode_quad()` helper functions that process complete groups independently
- Add `base64_encode_fast()` and `base64_decode_fast()` wrappers
- Update `b2a_base64` and `a2b_base64` to use fast path for complete groups
Performance gains (encode/decode speedup vs main, PGO builds):
```
64 bytes 64K 1M
Zen2: 1.2x/1.8x 1.7x/2.8x 1.5x/2.8x
Zen4: 1.2x/1.7x 1.6x/3.0x 1.5x/3.0x [old data, likely faster]
M4: 1.3x/1.9x 2.3x/2.8x 2.4x/2.9x [old data, likely faster]
RPi5-32: 1.2x/1.2x 2.4x/2.4x 2.0x/2.1x
```
Based on my exploratory work done in https://github.com/python/cpython/compare/main...gpshead:cpython:claude/vectorize-base64-c-S7Hku
See PR and issue for further thoughts on sometimes MUCH faster SIMD vectorized versions of this.
2026-01-01 22:03:05 -08:00
Bénédikt Tran
7f6c16a956
gh-142830: prevent some crashes when mutating sqlite3 callbacks ( #143245 )
2026-01-01 11:55:05 +01:00
AN Long
3c4429f65a
gh-135852: Remove out of tree pywin32 dependency for NTEventLogHandler (GH-137860)
...
Add RegisterEventSource(), DeregisterEventSource(), ReportEvent()
and a number of EVENTLOG_* constants to _winapi.
2025-12-31 12:50:50 +02:00
Sam Gross
96ab379dca
gh-140795: Keep 'err' in local variable in _ssl.c (gh-143275)
...
The error return code doesn't need to be mutable state on the SSLSocket.
This simplifes thread-safety and avoids potential reentrancy issues.
2025-12-30 19:45:44 -05:00
Bénédikt Tran
b6b0e14b3d
gh-143200: fix UAFs in Element.__{set,get}item__ when the element is concurrently mutated ( #143226 )
2025-12-29 18:30:51 +01:00
Ken Jin
6cb245d260
gh-143183: Link trace to side exits, rather than stop (GH-143268)
2025-12-29 15:10:42 +00:00
Bénédikt Tran
7726119651
gh-138122: fix AC warnings in Modules/_remote_debugging/module.c ( #143218 )
2025-12-27 12:57:03 +00:00
AN Long
1af21ea320
gh-63016: Add flags parameter on mmap.flush ( #139553 )
...
Co-authored-by: Victor Stinner <vstinner@python.org>
2025-12-27 10:33:56 +00:00
Pablo Galindo Salgado
54362898f3
gh-140739: Fix missing exception on allocation failure in BinaryWriter ( #143204 )
2025-12-27 01:39:21 +00:00
Pablo Galindo Salgado
d3d4cf9432
gh-140739: Fix crashes from corrupted remote memory ( #143190 )
2025-12-26 16:06:48 +00:00
Yongtao Huang
b9a4806430
gh-143164: Fix incorrect error message for ctypes bitfield overflow (GH-143165)
...
Signed-off-by: Yongtao Huang <yongtaoh2022@gmail.com>
2025-12-25 19:08:43 +02:00
Yongtao Huang
579c5b496b
gh-143145: Fix possible reference leak in ctypes _build_result() (GH-143131)
...
The result tuple was leaked if __ctypes_from_outparam__() failed for any item.
Signed-off-by: Yongtao Huang <yongtaoh2022@gmail.com>
2025-12-25 14:24:25 +00:00
kaushal trivedi
86d904588e
gh-143004: Fix possible use-after-free in collections.Counter.update() (GH-143044)
...
This happened when the Counter was mutated when incrementing
the value for an existing key.
2025-12-25 09:13:39 +00:00
Pablo Galindo Salgado
7c44f37170
gh-138122: Extend binary profiling format with full source location and opcode ( #143088 )
...
Co-authored-by: Stan Ulbrych <stan@ulbrych.org>
2025-12-24 16:15:11 +00:00
Pablo Galindo Salgado
81c8eb85e1
gh-138122: Add blocking mode for accurate stack traces in Tachyon ( #142998 )
2025-12-23 10:49:47 +00:00
Zheng Yu
a273bc99d2
gh-122431: Correct the non-negative error message in readline.append_history_file (GH-143075)
...
"positive" -> "non-negative", since zero is included.
2025-12-22 23:35:23 -05:00
Pablo Galindo Salgado
9e51301234
gh-138122: Allow tachyon to write and read binary output ( #142730 )
2025-12-22 23:57:20 +00:00
Yongtao Huang
3960878143
Remove unreachable code in mmapmodule error path on Windows (GH-143063)
...
mmapmodule: remove unreachable code in Windows error path
Remove an unreachable `return NULL` after `PyErr_SetFromWindowsErr()` in
the Windows mmap resize error path.
Signed-off-by: Yongtao Huang <yongtaoh2022@gmail.com>
2025-12-22 11:16:50 +01:00
AZero13
5989095dfd
gh-143012: use Py_ssize_t cast for PyBytes_FromStringAndSize ( #143013 )
2025-12-20 10:37:10 +03:00
Donghee Na
14f0b5191a
gh-142419: Add mmap.set_name method for user custom annotation (gh-142480)
2025-12-18 23:33:49 +09:00
Pablo Galindo Salgado
77b56eafde
gh-91048: Refactor common data into context object in Modules/_remote_debugging ( #142879 )
2025-12-17 17:43:52 +00:00
Petr Viktorin
7d81eab923
gh-142225: Add PyABIInfo_VAR to to _testcapimodule & _testinternalcapi (GH-142833)
2025-12-17 16:33:09 +01:00
Pablo Galindo Salgado
568a819f67
gh-138122: Validate base frame before caching in remote debugging frame cache ( #142852 )
2025-12-17 15:12:28 +00:00
Benjamin Johnson
2b466c47c3
gh-112127: Fix possible use-after-free in atexit.unregister() (GH-114092)
...
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2025-12-17 17:09:57 +02:00
wangxiaolei
8307a14d0e
gh-142783: Fix possible use after free in zoneinfo module (GH-142790)
2025-12-17 08:35:08 +00:00
Edward Xu
a043407510
gh-142495: Make defaultdict keep existed value when racing with __missing__ (GH-142668)
2025-12-16 17:04:20 +02:00
Sergey B Kirpichev
15a9762500
gh-142595: Amend be5e0dcded (fix NULL pointer dereference) (GH-142775)
2025-12-16 10:52:20 +02:00
Alper
1a9cdaf63a
gh-116738: Make _bz2 module thread-safe (gh-142756)
...
Make the attributes in _bz2 module thread-safe on the free-threading build.
Attributes (eof, needs_input, unused_data) are now stored atomically or
accessed via mutex-protected getters.
2025-12-15 12:47:04 -05:00
yihong
1d3854a19a
gh-142594: fix by property calls io.TextIOWrapper.detach (GH-142706)
...
Signed-off-by: yihong0618 <zouzou0208@gmail.com>
2025-12-15 15:13:58 +01:00
Pablo Galindo Salgado
6658e2cb07
gh-138122: Add --subprocesses flag to profile child processes in tachyon ( #142636 )
2025-12-15 12:11:40 +00:00
Hugo van Kemenade
38ad651b67
gh-76007: Deprecate __version__ attribute in ctypes ( #142679 )
2025-12-15 13:30:23 +02:00
Kumar Aditya
fb554ad68d
gh-140414: streamline thread state access in asyncio ( #142742 )
2025-12-15 16:57:51 +05:30
Bénédikt Tran
d3ef5ba34d
gh-142451: correctly copy HMAC attributes in HMAC.copy() ( #142510 )
2025-12-14 09:45:36 +01:00
Alper
1eddef8193
gh-116738: Make zlib module thread-safe (gh-142432)
...
Makes the zlib module thread-safe free-threading build. Even though operations
are protected by locks, attributes exposed via PyMemberDef (eof, needs_input,
unused_data, unconsumed_tail) should still be stored atomically within locked
sections, since they can be read without acquiring the lock.
2025-12-12 13:14:42 -05:00
Sergey B Kirpichev
be5e0dcded
gh-142595: add type check for namedtuple call during decimal initialization (GH-142608)
2025-12-12 11:47:45 +01:00
Pablo Galindo Salgado
6a0135a392
gh-138122: Add exception profiling mode to the sampling profiler ( #142561 )
2025-12-11 20:46:34 +00:00
Neil Schemenauer
e38967ed60
gh-142531: Fix free-threaded GC performance regression (gh-142562)
...
If there are many untracked tuples, the GC will run too often, resulting
in poor performance. The fix is to include untracked tuples in the
"long lived" object count. The number of frozen objects is also now
included since the free-threaded GC must scan those too.
2025-12-11 12:30:56 -08:00
Sam Gross
a26c831bc4
gh-142589: Fix PyUnstable_Object_IsUniqueReferencedTemporary (gh-142593)
...
PyUnstable_Object_IsUniqueReferencedTemporary wasn't handling tagged
ints on the evaluation stack properly.
2025-12-11 14:41:03 -05:00
Bartosz Sławecki
8cfa351560
Fix os.posix_spawn() error handling ( #142532 )
...
Consistently use `goto exit;` in `py_posix_spawn()`.
2025-12-11 18:02:26 +01:00
AZero13
44d3dc6491
gh-142438: Added missing GIL release in _PySSL_keylog_callback when keylog_bio is unset (gh-142439)
2025-12-11 23:30:39 +09:00
Kumar Aditya
42d2bedb87
gh-142556: fix crash when a task gets re-registered during finalization in asyncio ( #142565 )
2025-12-11 15:04:49 +05:30
