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| author | pst <pst@FreeBSD.org> | 1996-05-30 02:19:43 +0000 |
|---|---|---|
| committer | pst <pst@FreeBSD.org> | 1996-05-30 02:19:43 +0000 |
| commit | 20544fa323e08da49e207624c4e1a7626ce6acbc (patch) | |
| tree | c9b57ef3bd6ec7f6e716be5a09917e151883d423 /usr.sbin/ncrcontrol | |
| parent | 94a7f8648c30a71e955d8fdc8b637b0701a59e33 (diff) | |
| download | FreeBSD-src-20544fa323e08da49e207624c4e1a7626ce6acbc.zip FreeBSD-src-20544fa323e08da49e207624c4e1a7626ce6acbc.tar.gz | |
Drop privileges if not using standard namelist or file.
Submitted by: smpatel (Sujal Patel)
Diffstat (limited to 'usr.sbin/ncrcontrol')
| -rw-r--r-- | usr.sbin/ncrcontrol/ncrcontrol.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/usr.sbin/ncrcontrol/ncrcontrol.c b/usr.sbin/ncrcontrol/ncrcontrol.c index f7c687d..da3f43c 100644 --- a/usr.sbin/ncrcontrol/ncrcontrol.c +++ b/usr.sbin/ncrcontrol/ncrcontrol.c @@ -1,6 +1,6 @@ /************************************************************************** ** -** $Id: ncrcontrol.c,v 1.9 1995/09/14 18:14:28 se Exp $ +** $Id: ncrcontrol.c,v 1.10 1995/12/28 14:40:59 se Exp $ ** ** Utility for NCR 53C810 device driver. ** @@ -191,6 +191,13 @@ void open_kvm(int flags) } #endif #if defined(__NetBSD__) || (__FreeBSD__ >= 2) + /* + * Discard setgid privileges if not the running kernel so that bad + * guys can't print interesting stuff from kernel memory. + */ + if (vmunix != NULL || kmemf != NULL) + setgid(getgid()); + kvm = kvm_openfiles(vmunix, kmemf, NULL, flags, errbuf); if (kvm == NULL) { fprintf(stderr, "%s: kvm_openfiles: %s\n", prog, errbuf); |
