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openSUSE:Leap:15.4:ARM
gawk
format-tree-positional-arg.patch
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File format-tree-positional-arg.patch of Package gawk
2022-08-03 Arnold D. Robbins <arnold@skeeve.com> * builtin.c (format_tree): When collecting positional field widths or precisions, check for wrap around to negative values. Thanks to YU Jiongchi <jcyu.2022@phdcs.smu.edu.sg> for the report. diff --git a/builtin.c b/builtin.c index 21125453..b92db992 100644 --- a/builtin.c +++ b/builtin.c @@ -1030,7 +1030,10 @@ check_pos: s1++; n0--; } - if (val >= num_args) { + // val could be less than zero if someone provides a field width + // so large that it causes integer overflow. Mainly fuzzers do this, + // but let's try to be good anyway. + if (val < 0 || val >= num_args) { toofew = true; break; } -- 2.41.0
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