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home:dirkmueller:acdc:sp5-rebuild
vim.23083
vim-8.0.1568-CVE-2021-4193.patch
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File vim-8.0.1568-CVE-2021-4193.patch of Package vim.23083
--- vim-8.0.1568.orig/src/charset.c 2022-02-03 20:50:13.621648993 +0200 +++ vim-8.0.1568/src/charset.c 2022-02-16 16:30:19.375801644 +0200 @@ -1291,10 +1291,15 @@ posptr = NULL; /* continue until the NUL */ else { - /* Special check for an empty line, which can happen on exit, when - * ml_get_buf() always returns an empty string. */ - if (*ptr == NUL) - pos->col = 0; + colnr_T i; + + // In a few cases the position can be beyond the end of the line. + for (i = 0; i < pos->col; ++i) + if (ptr[i] == NUL) + { + pos->col = i; + break; + } posptr = ptr + pos->col; #ifdef FEAT_MBYTE if (has_mbyte)
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