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gh-140815: Fix faulthandler for invalid/freed frame #140921

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Merged
vstinner merged 8 commits into from
Nov 4, 2025
Merged

gh-140815: Fix faulthandler for invalid/freed frame #140921

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1cab1e5
gh-140815: Fix faulthandler for invalid/freed frame
vstinner Oct 31, 2025
4059837
Add NEWS entry
vstinner Nov 2, 2025
9b26187
Address reviews
vstinner Nov 2, 2025
7d9a4b8
Update Include/internal/pycore_code.h
vstinner Nov 2, 2025
c208539
Enhance _PyMem_IsPtrFreed()
vstinner Nov 3, 2025
c273f99
Stricter _PyFrame_SafeGetCode()
vstinner Nov 3, 2025
3764548
coding style
vstinner Nov 3, 2025
6239435
Document that safe functions are not 100% reliable
vstinner Nov 3, 2025
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coding style
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@vstinner
vstinner committed Nov 3, 2025
commit 3764548bdb65d31906b5050159d2108d216b16e7
2 changes: 1 addition & 1 deletion Python/traceback.c
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Expand Up @@ -1062,7 +1062,7 @@ dump_frame(int fd, _PyInterpreterFrame *frame)
PUTS(fd, ", line ");
int lasti = _PyFrame_SafeGetLasti(frame);
int lineno = -1;
if (0 <= lasti) {
if (lasti >= 0) {
lineno = _PyCode_SafeAddr2Line(code, lasti);
}
if (lineno >= 0) {
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