[PATCH RESEND] t7812: test PCRE2 whitespace bug
- From
René Scharfe <l.s.r@web.de>
- Date
- Apr 8, 2022, 16:21 UTC
- Message-ID
- <3a49649d-8ff9-e5a7-e3fd-33fee5068ae8@web.de>
Check if git grep works around the PCRE2 big fixed by their e0c6029 (Fix inifinite loop when a single byte newline is searched in JIT., 2020-05-29), which affects version 10.35 and earlier.
Searching for leading whitespace also triggers the endless loop. Set a one-second alarm to abort in case we do get hit by the bug, to avoid having to wait forever for the test result.
Reported-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: René Scharfe <l.s.r@web.de> --- Original submission: https://lore.kernel.org/git/1187feda-c14a-f75c-6e09-4df101f00056@web.de/
t/t7812-grep-icase-non-ascii.sh | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/t/t7812-grep-icase-non-ascii.sh b/t/t7812-grep-icase-non-ascii.sh index 9047d665a1..ac7be54714 100755 --- a/t/t7812-grep-icase-non-ascii.sh +++ b/t/t7812-grep-icase-non-ascii.sh @@ -4,6 +4,10 @@ test_description='grep icase on non-English locales' . ./lib-gettext.sh +doalarm () { + perl -e 'alarm shift; exec @ARGV' -- "$@" +} + test_expect_success GETTEXT_LOCALE 'setup' ' test_write_lines "TILRAUN: Halló Heimur!" >file && git add file && @@ -139,4 +143,10 @@ test_expect_success GETTEXT_LOCALE,LIBPCRE2 'PCRE v2: grep non-literal ASCII fro test_cmp expected actual ' +test_expect_success GETTEXT_LOCALE,LIBPCRE2 'PCRE v2: grep avoid endless loop bug' ' + echo " Halló" >leading-whitespace && + git add leading-whitespace && + doalarm 1 git grep --perl-regexp "^\s" leading-whitespace +' + test_done -- 2.35.1