[3.9] bpo-36819: Fix crashes in built-in encoders with weird error handlers (GH-28593) #92137
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…pythonGH-28593) If the error handler returns position less or equal than the starting position of non-encodable characters, most of built-in encoders didn't properly re-size the output buffer. This led to out-of-bounds writes, and segfaults. (cherry picked from commit 18b07d7) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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@serhiy-storchaka: Status check is done, and it's a success ✅ . |
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@serhiy-storchaka: Status check is done, and it's a success ✅ . |
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@serhiy-storchaka: Status check is done, and it's a success ✅ . |
serhiy-storchaka
approved these changes
May 2, 2022
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@serhiy-storchaka: Status check is done, and it's a success ✅ . |
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If the error handler returns position less or equal than the starting
position of non-encodable characters, most of built-in encoders didn't
properly re-size the output buffer. This led to out-of-bounds writes,
and segfaults.
(cherry picked from commit 18b07d7)
Co-authored-by: Serhiy Storchaka storchaka@gmail.com