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| author | zeertzjq <zeertzjq@outlook.com> | 2022-03-11 22:59:26 +0800 |
|---|---|---|
| committer | zeertzjq <zeertzjq@outlook.com> | 2022-03-11 23:01:02 +0800 |
| commit | d0b5c1f696016a90a5b386339f4425a7bc69f252 (patch) | |
| tree | 58749e45c7dddfe8e00bd2b1b92c4316c2cd76ec | |
| parent | 76769b8a1f5b34f4b0cef389597cec2796ca91b7 (diff) | |
| download | rneovim-d0b5c1f696016a90a5b386339f4425a7bc69f252.tar.gz rneovim-d0b5c1f696016a90a5b386339f4425a7bc69f252.tar.bz2 rneovim-d0b5c1f696016a90a5b386339f4425a7bc69f252.zip | |
vim-patch:8.2.4440: crash with specific regexp pattern and string
Problem: Crash with specific regexp pattern and string.
Solution: Stop at the start of the string.
https://github.com/vim/vim/commit/6456fae9ba8e72c74b2c0c499eaf09974604ff30
| -rw-r--r-- | src/nvim/regexp_bt.c | 4 | ||||
| -rw-r--r-- | src/nvim/testdir/test_regexp_utf8.vim | 12 |
2 files changed, 14 insertions, 2 deletions
diff --git a/src/nvim/regexp_bt.c b/src/nvim/regexp_bt.c index f6804e8415..1153b8ed33 100644 --- a/src/nvim/regexp_bt.c +++ b/src/nvim/regexp_bt.c @@ -4083,6 +4083,10 @@ static bool regmatch( break; if (rex.input == rex.line) { // backup to last char of previous line + if (rex.lnum == 0) { + status = RA_NOMATCH; + break; + } rex.lnum--; rex.line = reg_getline(rex.lnum); // Just in case regrepeat() didn't count right. diff --git a/src/nvim/testdir/test_regexp_utf8.vim b/src/nvim/testdir/test_regexp_utf8.vim index b640a6d043..70741209fe 100644 --- a/src/nvim/testdir/test_regexp_utf8.vim +++ b/src/nvim/testdir/test_regexp_utf8.vim @@ -540,7 +540,6 @@ endfunc " Check that [[:upper:]] matches for automatic engine func Test_match_char_class_upper() new - let _engine=®expengine " Test 1: [[:upper:]]\{2,\} set regexpengine=0 @@ -581,7 +580,7 @@ func Test_match_char_class_upper() call assert_equal(4, searchcount().total, 'TEST 3 lower') " clean up - let ®expengine=_engine + set regexpengine=0 bwipe! endfunc @@ -593,4 +592,13 @@ func Test_match_invalid_byte() call delete('Xinvalid') endfunc +func Test_match_too_complicated() + set regexpengine=1 + exe "vsplit \xeb\xdb\x99" + silent! buf \&\zs*\zs*0 + bwipe! + set regexpengine=0 +endfunc + + " vim: shiftwidth=2 sts=2 expandtab |