CVS commit: src/external/mit/lua/dist/src

["Nikita" <nikita%netbsd.org@localhost>]

Module Name:    src
Committed By:   nikita
Date:           Mon Apr 17 19:35:36 UTC 2023

Modified Files:
        src/external/mit/lua/dist/src: ldebug.c lvm.c

Log Message:
lua: apply upstream bugfix for "Lua-stack overflow when C stack overflows while
handling an error." (CVE-2022-33099)

 Save stack space while handling errors

Because error handling (luaG_errormsg) uses slots from EXTRA_STACK,
and some errors can recur (e.g., string overflow while creating an
error message in 'luaG_runerror', or a C-stack overflow before calling
the message handler), the code should use stack slots with parsimony.

This commit fixes the bug "Lua-stack overflow when C stack overflows
while handling an error".


To generate a diff of this commit:
cvs rdiff -u -r1.12 -r1.13 src/external/mit/lua/dist/src/ldebug.c
cvs rdiff -u -r1.15 -r1.16 src/external/mit/lua/dist/src/lvm.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.