NotificationsYou must be signed in to change notification settings
Fork34k
Star71.2k

[3.14] gh-143196: Fix crash in non-standard use of internal JSON encoder object (GH-143618)#143748

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to ourterms of service andprivacy statement. We’ll occasionally send you account related emails.

Already on GitHub?Sign in to your account

Jump to bottom

Merged

serhiy-storchaka merged 1 commit intopython:3.14frommiss-islington:backport-c559135-3.14

Jan 12, 2026

Merged

[3.14] gh-143196: Fix crash in non-standard use of internal JSON encoder object (GH-143618)#143748

serhiy-storchaka merged 1 commit intopython:3.14frommiss-islington:backport-c559135-3.14

Jan 12, 2026

Conversation

Copy link

Contributor

miss-islington commentedJan 12, 2026•
edited by bedevere-appbot
Loading

The internal encoder object returned by undocumented function
json.encoder.c_make_encoder() (aka _json.make_encoder()) crashed
when it was called with non-zero second argument.
(cherry picked from commitc559135)

Co-authored-by: Serhiy Storchakastorchaka@gmail.com

Issue:Heap-buffer-overflow injson.encoder indentation cache via re-entrant__mul__ #143196

pythongh-143196: Fix crash in non-standard use of internal JSON encod…

dd5739e

…er object (pythonGH-143618)The internal encoder object returned by undocumented functionjson.encoder.c_make_encoder() (aka _json.make_encoder()) crashedwhen it was called with non-zero second argument.(cherry picked from commitc559135)Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>