Lua 5.4.0 (fixed in 5.4.1) 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.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Lua | Lua | 5.3.1 (including) | 5.4.0 (excluding) |
| Lua5.1 | Ubuntu | precise/esm | * |
| Lua5.1 | Ubuntu | trusty | * |
| Lua5.2 | Ubuntu | trusty | * |
| Lua5.3 | Ubuntu | trusty | * |
| Lua5.4 | Ubuntu | groovy | * |
| Lua5.4 | Ubuntu | trusty | * |
| Lua50 | Ubuntu | trusty | * |