[3.13] gh-129185: Fix PyTraceMalloc_Untrack() at Python exit (#129191) (#129217)
gh-129185: Fix PyTraceMalloc_Untrack() at Python exit (#129191)
Support calling PyTraceMalloc_Track() and PyTraceMalloc_Untrack()
during late Python finalization.
* Call _PyTraceMalloc_Fini() later in Python finalization.
* Test also PyTraceMalloc_Untrack() without the GIL
* PyTraceMalloc_Untrack() now gets the GIL.
* Test also PyTraceMalloc_Untrack() in test_tracemalloc_track_race().
(cherry picked from commit 46c7e13c05)
(cherry picked from commit e3b3e01d6a)
[3.13] gh-128679: Fix tracemalloc.stop() race conditions (#128897)
tracemalloc_alloc(), tracemalloc_realloc(), PyTraceMalloc_Track(),
PyTraceMalloc_Untrack() and _PyTraceMalloc_TraceRef() now check
tracemalloc_config.tracing after calling TABLES_LOCK().
_PyTraceMalloc_Stop() now protects more code with TABLES_LOCK(),
especially setting tracemalloc_config.tracing to 1.
Add a test using PyTraceMalloc_Track() to test tracemalloc.stop()
race condition.
Call _PyTraceMalloc_Init() at Python startup.
(cherry picked from commit 6b47499510)
gh-58689: Fix os.kill() error handling on Windows (GH-128932)
(cherry picked from commit 939df0f9f6)
Co-authored-by: Victor Stinner <vstinner@python.org>
- Add a helper to set an error from locale-encoded `char*`
- Use the helper for gdbm & dlerror messages
Co-authored-by: Victor Stinner <vstinner@python.org>
For dlsym(), a return value of NULL does not necessarily indicate
an error [1].
Therefore, to avoid using stale (or NULL) dlerror() values, we must:
1. clear the previous error state by calling dlerror()
2. call dlsym()
3. call dlerror()
If the return value of dlerror() is not NULL, an error occured.
In ctypes we choose to treat a NULL return value from dlsym()
as a "not found" error. This is the same as the fallback
message we use on Windows, Cygwin or when getting/formatting
the error reason fails.
[1]: https://man7.org/linux/man-pages/man3/dlsym.3.html
Signed-off-by: Georgios Alexopoulos <grgalex42@gmail.com>
Signed-off-by: Georgios Alexopoulos <grgalex@ba.uoa.gr>
Co-authored-by: George Alexopoulos <giorgosalexo0@gmail.com>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
gh-127257: ssl: Raise OSError for ERR_LIB_SYS (GH-127361)
From the ERR_raise manpage:
ERR_LIB_SYS
This "library code" indicates that a system error is
being reported. In this case, the reason code given
to `ERR_raise()` and `ERR_raise_data()` *must* be
`errno(3)`.
This PR only handles ERR_LIB_SYS for the high-lever error types
SSL_ERROR_SYSCALL and SSL_ERROR_SSL, i.e., not the ones where
OpenSSL indicates it has some more information about the issue.
(cherry picked from commit f4b31edf2d)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
gh-122431: Disallow negative values in `readline.append_history_file` (GH-122469)
(cherry picked from commit 208b0fb645)
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-126876: Fix socket internal_select() for large timeout (GH-126968)
If the timeout is larger than INT_MAX, replace it with INT_MAX, in
the poll() code path.
Add an unit test.
(cherry picked from commit b3687ad454)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-127190: Fix local_setattro() error handling (GH-127366)
Don't make the assumption that the 'name' argument is a string. Use
repr() to format the 'name' argument instead.
(cherry picked from commit 20657fbdb1)
Co-authored-by: Victor Stinner <vstinner@python.org>
Since MultiByteToWideChar()/WideCharToMultiByte() is not reversible if
the data contains invalid UTF-8 sequences, use binary search to
calculate the number of written bytes from the number of written
characters.
Also fix writing incomplete UTF-8 sequences.
Also fix handling of memory allocation failures.
(cherry picked from commit 3cf83d91a5)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-127182: Fix `io.StringIO.__setstate__` crash when `None` is the first value (GH-127219)
(cherry picked from commit a2ee899682)
Co-authored-by: sobolevn <mail@sobolevn.me>
Co-authored-by: Victor Stinner <vstinner@python.org>
If Python fails to start newly created thread
due to failure of underlying PyThread_start_new_thread() call,
its state should be removed from interpreter' thread states list
to avoid its double cleanup.
(cherry picked from commit ca3ea9ad05)
Co-authored-by: Radislav Chugunov <52372310+chgnrdv@users.noreply.github.com>
It now returns multiple era description segments separated by semicolons.
Previously it only returned the first segment on platforms with Glibc.
(cherry picked from commit 4803cd0244)
If PyObject_SetItem() fails in the `load_build()` function of _pickle.c, no DECREF for the `dict` variable.
(cherry picked from commit 29cbcbd73b)
Co-authored-by: Justin Applegate <70449145+Legoclones@users.noreply.github.com>
If SRE(match) function terminates abruptly, either because of a signal
or because memory allocation fails, allocated SRE_REPEAT blocks might
be never released.
(cherry picked from commit 7538e7f569)
gh-126623: Update libexpat to 2.6.4, make future updates easier (GH-126792)
Update libexpat to 2.6.4, make future updates easier.
(cherry picked from commit 3c99969094)
Co-authored-by: Seth Michael Larson <seth@python.org>
gh-126455: Disallow _ssl.SSLSocket instantiation (GH-126481)
Prevent creation of incomplete/invalid _ssl.SSLSocket objects when
created directly.
(cherry picked from commit b1c4ffc205)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-126425: Refactor `_lsprof_Profiler_enable` (GH-126426)
- Explicit memory management for `None` objects (since we still try to treat immortal objects as regular objects)
- Respect possible errors of `sys.monitoring.register_callback` call
(cherry picked from commit 75872605aa)
Co-authored-by: sobolevn <mail@sobolevn.me>
gh-126080: fix UAF on `task->task_context` in `task_call_step_soon` due to an evil `loop.__getattribute__` (GH-126120)
(cherry picked from commit 0e8665554b)
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
gh-126083: Fix a reference leak in `asyncio.Task` when reinitializing with new non-`None` context (GH-126103)
(cherry picked from commit d07dcce693)
Co-authored-by: Nico-Posada <102486290+Nico-Posada@users.noreply.github.com>
Yak-shave in preparation for Argument Clinic adaption in gh-125999.
(cherry picked from commit 9b14083497)
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
gh-125966: fix use-after-free on `fut->fut_callback0` due to an evil callback's `__eq__` in asyncio (GH-125967)
(cherry picked from commit ed5059eeb1)
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
gh-125984: fix use-after-free on `fut->fut_{callback,context}0` due to an evil `loop.__getattribute__` (GH-126003)
(cherry picked from commit f819d4301d)
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
gh-125969: fix OOB in `future_schedule_callbacks` due to an evil `call_soon` (GH-125970)
(cherry picked from commit c5b99f5c2c)
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>
GH-125789: fix `fut._callbacks` to always return a copy of callbacks (GH-125922)
Fix `asyncio.Future._callbacks` to always return a copy of the internal list of callbacks to avoid mutation from user code affecting the internal state.
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
(cherry picked from commit cae853e3b4)
This is a follow up of GH-124974. Only Glibc needed a fix.
Now the returned value is a string consisting of semicolon-separated
symbols on all Posix platforms.
(cherry picked from commit dcc4fb2c90)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Fix time.strftime(), the strftime() method and formatting of the
datetime classes datetime, date and time.
* Characters not encodable in the current locale are now acceptable in
the format string.
* Surrogate pairs and sequence of surrogatescape-encoded bytes are no
longer recombinated.
* Embedded null character no longer terminates the format string.
This fixes also gh-78662 and gh-124531.
(cherry picked from commit 08ccbb9b3f)
(cherry picked from commit ad3eac1963)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
(cherry picked from commit 26a93189e4)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Returns a tuple of up to 100 strings for ALT_DIGITS lookup (an empty tuple on most locales).
Previously it returned the first item of that tuple or an empty string.
(cherry picked from commit 21c04e1a97)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
