Blame SOURCES/0001-patch-8.2.3669-buffer-overflow-with-long-help-argume.patch
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diff --git a/src/ex_cmds.c b/src/ex_cmds.c
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index 1827fec..e69fbd3 100644
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--- a/src/ex_cmds.c
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+++ b/src/ex_cmds.c
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@@ -6537,8 +6537,7 @@ find_help_tags(
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|| (vim_strchr((char_u *)"%_z@", arg[1]) != NULL
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&& arg[2] != NUL)))
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{
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- STRCPY(d, "/\\\\");
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- STRCPY(d + 3, arg + 1);
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+ vim_snprintf((char *)d, IOSIZE, "/\\\\%s", arg + 1);
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/* Check for "/\\_$", should be "/\\_\$" */
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if (d[3] == '_' && d[4] == '$')
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STRCPY(d + 4, "\\$");
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