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| author | Karl Williamson <khw@cpan.org> | 2020-04-04 21:17:24 -0600 |
|---|---|---|
| committer | Karl Williamson <khw@cpan.org> | 2020-04-05 06:14:44 -0600 |
| commit | daa7401031a7a416e6bc05379a3e6f56744ff93d (patch) | |
| tree | 80458fdfda410ee3d5d6f87266d288e2c661e423 /pod/perldiag.pod | |
| parent | 99d2ace527b7c674a6e6c604deb0fa2522cac990 (diff) | |
| download | perl-daa7401031a7a416e6bc05379a3e6f56744ff93d.tar.gz | |
regcomp.c: Avoid a segfault
This was resulting in C undefined behavior reported by asan. Check that
won't overflow before doing the operation; then die instead of going
ahead anyway.
This fixes #17593
Diffstat (limited to 'pod/perldiag.pod')
| -rw-r--r-- | pod/perldiag.pod | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/pod/perldiag.pod b/pod/perldiag.pod index 28e2d55b90..6ae08a93d6 100644 --- a/pod/perldiag.pod +++ b/pod/perldiag.pod @@ -3098,6 +3098,12 @@ problem was discovered. See L<perlre>. (F) The range specified in the tr/// or y/// operator had a minimum character greater than the maximum character. See L<perlop>. +=item Invalid reference to group in regex; marked by S<<-- HERE> in m/%s/ + +(F) The capture group you specified can't possibly exist because the +number you used is not within the legal range of possible values for +this machine. + =item Invalid separator character %s in attribute list (F) Something other than a colon or whitespace was seen between the |