Date: Fri, 10 Dec 2010 05:16:26 +0000 (UTC) From: "Andrey V. Elsukov" <ae@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r216347 - stable/7/sbin/ipfw Message-ID: <201012100516.oBA5GQ9n062205@svn.freebsd.org>
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Author: ae Date: Fri Dec 10 05:16:25 2010 New Revision: 216347 URL: http://svn.freebsd.org/changeset/base/216347 Log: MFC r206494 by luigi: fix a buffer overflow with large (100k+) number of input lines. Approved by: re (bz) Modified: stable/7/sbin/ipfw/main.c Directory Properties: stable/7/sbin/ipfw/ (props changed) Modified: stable/7/sbin/ipfw/main.c ============================================================================== --- stable/7/sbin/ipfw/main.c Fri Dec 10 05:15:47 2010 (r216346) +++ stable/7/sbin/ipfw/main.c Fri Dec 10 05:16:25 2010 (r216347) @@ -491,11 +491,11 @@ ipfw_readfile(int ac, char *av[]) } while (fgets(buf, BUFSIZ, f)) { /* read commands */ - char linename[10]; + char linename[20]; char *args[2]; lineno++; - sprintf(linename, "Line %d", lineno); + snprintf(linename, sizeof(linename), "Line %d", lineno); setprogname(linename); /* XXX */ args[0] = progname; args[1] = buf;
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