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Diffstat (limited to 'data/vim/patches/8.1.0048')
| -rw-r--r-- | data/vim/patches/8.1.0048 | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/data/vim/patches/8.1.0048 b/data/vim/patches/8.1.0048 new file mode 100644 index 000000000..c8da45f80 --- /dev/null +++ b/data/vim/patches/8.1.0048 @@ -0,0 +1,111 @@ +To: vim_dev@googlegroups.com +Subject: Patch 8.1.0048 +Fcc: outbox +From: Bram Moolenaar <Bram@moolenaar.net> +Mime-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit +------------ + +Patch 8.1.0048 +Problem: vim_str2nr() does not handle numbers close to the maximum. +Solution: Check for overflow more precisely. (Ken Takata, closes #2746) +Files: src/charset.c + + +*** ../vim-8.1.0047/src/charset.c 2018-04-25 21:59:10.000000000 +0200 +--- src/charset.c 2018-06-12 17:20:17.692062915 +0200 +*************** +*** 1928,1935 **** + while ('0' <= *ptr && *ptr <= '1') + { + /* avoid ubsan error for overflow */ +! if (un < UVARNUM_MAX / 2) +! un = 2 * un + (unsigned long)(*ptr - '0'); + else + un = UVARNUM_MAX; + ++ptr; +--- 1928,1935 ---- + while ('0' <= *ptr && *ptr <= '1') + { + /* avoid ubsan error for overflow */ +! if (un <= UVARNUM_MAX / 2) +! un = 2 * un + (uvarnumber_T)(*ptr - '0'); + else + un = UVARNUM_MAX; + ++ptr; +*************** +*** 1943,1949 **** + while ('0' <= *ptr && *ptr <= '7') + { + /* avoid ubsan error for overflow */ +! if (un < UVARNUM_MAX / 8) + un = 8 * un + (uvarnumber_T)(*ptr - '0'); + else + un = UVARNUM_MAX; +--- 1943,1949 ---- + while ('0' <= *ptr && *ptr <= '7') + { + /* avoid ubsan error for overflow */ +! if (un <= UVARNUM_MAX / 8) + un = 8 * un + (uvarnumber_T)(*ptr - '0'); + else + un = UVARNUM_MAX; +*************** +*** 1960,1966 **** + while (vim_isxdigit(*ptr)) + { + /* avoid ubsan error for overflow */ +! if (un < UVARNUM_MAX / 16) + un = 16 * un + (uvarnumber_T)hex2nr(*ptr); + else + un = UVARNUM_MAX; +--- 1960,1966 ---- + while (vim_isxdigit(*ptr)) + { + /* avoid ubsan error for overflow */ +! if (un <= UVARNUM_MAX / 16) + un = 16 * un + (uvarnumber_T)hex2nr(*ptr); + else + un = UVARNUM_MAX; +*************** +*** 1974,1982 **** + /* decimal */ + while (VIM_ISDIGIT(*ptr)) + { + /* avoid ubsan error for overflow */ +! if (un < UVARNUM_MAX / 10) +! un = 10 * un + (uvarnumber_T)(*ptr - '0'); + else + un = UVARNUM_MAX; + ++ptr; +--- 1974,1985 ---- + /* decimal */ + while (VIM_ISDIGIT(*ptr)) + { ++ uvarnumber_T digit = (uvarnumber_T)(*ptr - '0'); ++ + /* avoid ubsan error for overflow */ +! if (un < UVARNUM_MAX / 10 +! || (un == UVARNUM_MAX / 10 && digit <= UVARNUM_MAX % 10)) +! un = 10 * un + digit; + else + un = UVARNUM_MAX; + ++ptr; +*** ../vim-8.1.0047/src/version.c 2018-06-12 17:03:35.949611796 +0200 +--- src/version.c 2018-06-12 17:24:32.210718899 +0200 +*************** +*** 763,764 **** +--- 763,766 ---- + { /* Add new patch number below this line */ ++ /**/ ++ 48, + /**/ + +-- +Everyone has a photographic memory. Some don't have film. + + /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\ +/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\ +\\\ an exciting new programming language -- http://www.Zimbu.org /// + \\\ help me help AIDS victims -- http://ICCF-Holland.org /// |