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comparison src/testdir/test_scroll_opt.vim @ 33774:f2dd85a2bfc0 v9.0.2107

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patch 9.0.2107: [security]: FPE in adjust_plines_for_skipcol Commit: https://github.com/vim/vim/commit/cb0b99f0672d8446585d26e998343dceca17d1ce Author: Christian Brabandt <cb@256bit.org> Date: Tue Nov 14 20:05:59 2023 +0100 patch 9.0.2107: [security]: FPE in adjust_plines_for_skipcol Problem: [security]: FPE in adjust_plines_for_skipcol Solution: don't divide by zero, return zero Prevent a floating point exception when calculating w_skipcol (which can happen with a small window when the number option is set and cpo+=n). Add a test to verify Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Thu, 16 Nov 2023 22:15:08 +0100
parents 6e4bf51ec635
children 8f65cb02af21
comparison
equal deleted inserted replaced
33773:087539ab4b70 33774:f2dd85a2bfc0
924 call VerifyScreenDump(buf, 'Test_smoothscroll_cursor_top', {}) 924 call VerifyScreenDump(buf, 'Test_smoothscroll_cursor_top', {})
925 925
926 call StopVimInTerminal(buf) 926 call StopVimInTerminal(buf)
927 endfunc 927 endfunc
928 928
929 " Division by zero, shouldn't crash
930 func Test_smoothscroll_crash()
931 CheckScreendump
932
933 let lines =<< trim END
934 20 new
935 vsp
936 put =repeat('aaaa', 20)
937 set nu fdc=1 smoothscroll cpo+=n
938 vert resize 0
939 exe "norm! 0\<c-e>"
940 END
941 call writefile(lines, 'XSmoothScrollCrash', 'D')
942 let buf = RunVimInTerminal('-u NONE -S XSmoothScrollCrash', #{rows: 12, cols:40})
943 call term_sendkeys(buf, "2\<C-E>\<C-L>")
944
945 call StopVimInTerminal(buf)
946 endfunc
947
929 " vim: shiftwidth=2 sts=2 expandtab 948 " vim: shiftwidth=2 sts=2 expandtab