Date: Thu, 17 Jul 1997 23:32:12 -0400 (EDT) From: Gene Stark <gene@starkhome.cs.sunysb.edu> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/4115: SunOS NFS file has wrong owner if creator has EUID = 65534 Message-ID: <199707180332.XAA09260@starkhome.cs.sunysb.edu> Resent-Message-ID: <199707180410.VAA26092@hub.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 4115 >Category: kern >Synopsis: SunOS NFS file has wrong owner if creator has EUID = 65534 >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Jul 17 21:10:02 PDT 1997 >Last-Modified: >Originator: Gene Stark >Organization: SUNY at Stony Brook CS Dept. >Release: FreeBSD 2.2.2-RELEASE i386 >Environment: FreeBSD machine with NFS mounted volumes being served by Sparc IPX's running SunOS 4.1.3. >Description: When a program that is running setuid to "nobody" (UID 65534) creates a file on an NFS mounted volume being served by a Sparc IPX running SunOS 4.1.3, the file comes out being owned by a bizarre user ID: -rwxr-xr-x 1 4294967 daemon 0 Jul 17 23:16 foo >How-To-Repeat: Compile the following program, chown to nobody (UID 65534), chmod 4711, then run it, specifying as argument a path on the NFS mounted volume. Observe that a file with a bogus UID is created. If a path is specified on the local FreeBSD machine, everything is normal. #include <unistd.h> #include <sys/types.h> main(int argc, char *argv[]) { printf("UID: %ld, EUID: %ld\n", getuid(), geteuid()); creat(argv[1], 0777); } >Fix: Unknown. >Audit-Trail: >Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199707180332.XAA09260>