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gh-152156: Fix a crash in interpeters.create under limited memory conditions - #152163

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sobolevn merged 1 commit into
python:mainfrom
sobolevn:issue-152156
Jun 26, 2026
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gh-152156: Fix a crash in interpeters.create under limited memory conditions#152163
sobolevn merged 1 commit into
python:mainfrom
sobolevn:issue-152156

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@sobolevn

@sobolevn sobolevn commented Jun 25, 2026 •
edited by bedevere-app Bot
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In handle_channel_error we already set an error. When called the second time, we get end up with err == 0 and run this code:

if (err == 0) {
    assert(!PyErr_Occurred());
    return 0;
}

which will fail, because exception was already set by the first error. So, there's no need to call it twice.

@bedevere-app bedevere-app Bot mentioned this pull request Jun 25, 2026
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@serhiy-storchaka

serhiy-storchaka commented Jun 25, 2026

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Are you sure that channel_destroy can not clear error?

@sobolevn

sobolevn commented Jun 25, 2026

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PyErr_Clear can be called in _release_xid_data under XID_IGNORE_EXC, but it resets the previous error correctly. I don't see any real ways to clear it.

PyErr_GetRaisedException and PyErr_Clear are only used in _release_xid_data in this path.

serhiy-storchaka
serhiy-storchaka approved these changes Jun 26, 2026
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LGTM. 👍

@sobolevn
sobolevn merged commit 3ad66bf into python:main Jun 26, 2026
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@sobolevn sobolevn added awaiting merge needs backport to 3.13 bugs and security fixes needs backport to 3.14 bugs and security fixes needs backport to 3.15 pre-release feature fixes, bugs and security fixes labels Jun 26, 2026
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miss-islington-app Bot commented Jun 26, 2026

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Thanks @sobolevn for the PR 🌮🎉.. I'm working now to backport this PR to: 3.14.
🐍🍒⛏🤖

@miss-islington-app

miss-islington-app Bot commented Jun 26, 2026

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Thanks @sobolevn for the PR 🌮🎉.. I'm working now to backport this PR to: 3.15.
🐍🍒⛏🤖

@miss-islington-app

miss-islington-app Bot commented Jun 26, 2026

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Thanks @sobolevn for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13.
🐍🍒⛏🤖

@bedevere-app

bedevere-app Bot commented Jun 26, 2026

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GH-152268 is a backport of this pull request to the 3.14 branch.

@bedevere-app bedevere-app Bot removed the needs backport to 3.14 bugs and security fixes label Jun 26, 2026
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bedevere-app Bot commented Jun 26, 2026

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GH-152269 is a backport of this pull request to the 3.15 branch.

@bedevere-app bedevere-app Bot removed the needs backport to 3.15 pre-release feature fixes, bugs and security fixes label Jun 26, 2026
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bedevere-app Bot commented Jun 26, 2026

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GH-152270 is a backport of this pull request to the 3.13 branch.

@bedevere-app bedevere-app Bot removed the needs backport to 3.13 bugs and security fixes label Jun 26, 2026
sobolevn added a commit that referenced this pull request Jun 26, 2026
@miss-islington @sobolevn
[3.14] gh-152156: Fix a crash in interpeters.create under limited m…
df7c9e1 
…emory conditions (GH-152163) (#152268)

gh-152156: Fix a crash in `interpeters.create` under limited memory conditions (GH-152163)
(cherry picked from commit 3ad66bf)

Co-authored-by: sobolevn <[email protected]>
sobolevn added a commit that referenced this pull request Jun 26, 2026
@miss-islington @sobolevn
[3.15] gh-152156: Fix a crash in interpeters.create under limited m…
62842c9 
…emory conditions (GH-152163) (#152269)

gh-152156: Fix a crash in `interpeters.create` under limited memory conditions (GH-152163)
(cherry picked from commit 3ad66bf)

Co-authored-by: sobolevn <[email protected]>
sobolevn added a commit that referenced this pull request Jun 27, 2026
@miss-islington @sobolevn
[3.13] gh-152156: Fix a crash in interpeters.create under limited m…
d1faeda 
…emory conditions (GH-152163) (#152270)

gh-152156: Fix a crash in `interpeters.create` under limited memory conditions (GH-152163)
(cherry picked from commit 3ad66bf)

Co-authored-by: sobolevn <[email protected]>
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@serhiy-storchaka serhiy-storchaka serhiy-storchaka approved these changes
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