Date: Fri, 14 Apr 2017 00:22:28 +0000 (UTC) From: Conrad Meyer <cem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r316801 - head/sbin/fsck Message-ID: <201704140022.v3E0MSZC019702@repo.freebsd.org>
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Author: cem Date: Fri Apr 14 00:22:28 2017 New Revision: 316801 URL: https://svnweb.freebsd.org/changeset/base/316801 Log: fsck(8): Don't overrun mount device buffer Apply a very similar fix to r299460 (fsck_ffs) to apparently duplicated code in fsck. Reported by: Coverity CID: 1006789 Sponsored by: Dell EMC Isilon Modified: head/sbin/fsck/fsutil.c Modified: head/sbin/fsck/fsutil.c ============================================================================== --- head/sbin/fsck/fsutil.c Fri Apr 14 00:15:34 2017 (r316800) +++ head/sbin/fsck/fsutil.c Fri Apr 14 00:22:28 2017 (r316801) @@ -172,6 +172,9 @@ getmntpt(const char *name) statfsp = &mntbuf[i]; dev_name = statfsp->f_mntfromname; if (*dev_name != '/') { + if (strlen(_PATH_DEV) + strlen(dev_name) + 1 > + sizeof(statfsp->f_mntfromname)) + continue; strcpy(device, _PATH_DEV); strcat(device, dev_name); strcpy(statfsp->f_mntfromname, device);
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