diff options
| author |   guenther <guenther@openbsd.org> | 2010-06-29 16:39:22 +0000 |
|---|---|---|
| committer | guenther <guenther@openbsd.org> | 2010-06-29 16:39:22 +0000 |
| commit | d8035eb33180d1cf5de0fa91afe9ef554e5020dd (patch) | |
| tree | 015ebd2319253a5c10dbc3dc7a805e4bdd081076 /lib/libkvm/kvm_file2.c | |
| parent | Add the new schema parser. (diff) | |
| download | wireguard-openbsd-d8035eb33180d1cf5de0fa91afe9ef554e5020dd.tar.xz wireguard-openbsd-d8035eb33180d1cf5de0fa91afe9ef554e5020dd.zip | |
Fail instead of lying if a process asks sysctl()'s KERN_PROC2 or
KERN_FILE2 (or their libkvm wrappers) for more information than the
running implementation knows how to provide.
ok millert@ deraadt@
Diffstat (limited to 'lib/libkvm/kvm_file2.c')
| -rw-r--r-- | lib/libkvm/kvm_file2.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/libkvm/kvm_file2.c b/lib/libkvm/kvm_file2.c index 0df59df095a..2af3d7702fa 100644 --- a/lib/libkvm/kvm_file2.c +++ b/lib/libkvm/kvm_file2.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kvm_file2.c,v 1.14 2010/01/10 03:37:50 guenther Exp $ */ +/* $OpenBSD: kvm_file2.c,v 1.15 2010/06/29 16:39:23 guenther Exp $ */ /* * Copyright (c) 2009 Todd C. Miller <Todd.Miller@courtesan.com> @@ -172,6 +172,11 @@ kvm_getfile2(kvm_t *kd, int op, int arg, size_t esize, int *cnt) *cnt = size / esize; return ((struct kinfo_file2 *)kd->filebase); } else { + if (esize > sizeof(struct kinfo_file2)) { + _kvm_syserr(kd, kd->program, + "kvm_getfile2: unknown fields requested: libkvm out of date?"); + return (NULL); + } deadway: switch (op) { case KERN_FILE_BYFILE: |