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| author | Victor Stinner <vstinner@python.org> | 2023-09-11 15:27:03 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-09-11 15:27:03 (GMT) |
| commit | 517cd82ea7d01b344804413ef05610934a43a241 (patch) | |
| tree | 733959eb7944699c65275e5108be00b8dbc7a061 /Include/internal/pycore_namespace.h | |
| parent | c0f488b88f2a54d76256818e2841d868fecfd396 (diff) | |
| download | cpython-517cd82ea7d01b344804413ef05610934a43a241.zip cpython-517cd82ea7d01b344804413ef05610934a43a241.tar.gz cpython-517cd82ea7d01b344804413ef05610934a43a241.tar.bz2 | |
gh-108987: Fix _thread.start_new_thread() race condition (#109135)
Fix _thread.start_new_thread() race condition. If a thread is created
during Python finalization, the newly spawned thread now exits
immediately instead of trying to access freed memory and lead to a
crash.
thread_run() calls PyEval_AcquireThread() which checks if the thread
must exit. The problem was that tstate was dereferenced earlier in
_PyThreadState_Bind() which leads to a crash most of the time.
Move _PyThreadState_CheckConsistency() from thread_run() to
_PyThreadState_Bind().
Diffstat (limited to 'Include/internal/pycore_namespace.h')
0 files changed, 0 insertions, 0 deletions