Mercurial > vim
diff src/viminfo.c @ 25589:50f8204eb8f7 v8.2.3331
patch 8.2.3331: Coverity warns for using value without boundary check
Commit: https://github.com/vim/vim/commit/ed7cb2df35244e40e5c4df06169b50e705427576
Author: Bram Moolenaar <Bram@vim.org>
Date: Wed Aug 11 17:13:54 2021 +0200
patch 8.2.3331: Coverity warns for using value without boundary check
Problem: Coverity warns for using value without boundary check.
Solution: Add a boundary check.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Wed, 11 Aug 2021 17:15:05 +0200 |
| parents | 763ea8f075db |
| children | 255bc9a08e58 |
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--- a/src/viminfo.c +++ b/src/viminfo.c @@ -253,17 +253,18 @@ viminfo_readstring( int off, // offset for virp->vir_line int convert UNUSED) // convert the string { - char_u *retval; + char_u *retval = NULL; char_u *s, *d; long len; if (virp->vir_line[off] == Ctrl_V && vim_isdigit(virp->vir_line[off + 1])) { len = atol((char *)virp->vir_line + off + 1); - retval = lalloc(len, TRUE); + if (len > 0 && len < 1000000) + retval = lalloc(len, TRUE); if (retval == NULL) { - // Line too long? File messed up? Skip next line. + // Invalid length, line too long, out of memory? Skip next line. (void)vim_fgets(virp->vir_line, 10, virp->vir_fd); return NULL; }