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Lua through 5.4.0 has a segmentation fault in changedline in ldebug.c (e.g. when called by luaG_traceexec) because it incorrectly expects that an oldpc value is always updated upon a return of the flow of control to a function.

🗓️ 16 Dec 2021 08:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

Lua 5.4.0 segfaults in changedline when invoked by trace execution due to oldpc not updating on function return.

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16 Dec 2021 08:00Current
8.3High risk
Vulners AI Score8.3
CVSS 22.1
CVSS 3.15.5
EPSS0.00158
1