Date: Tue, 6 Jul 2010 18:20:49 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r209742 - head/sys/kern Message-ID: <201007061820.o66IKnnE047540@svn.freebsd.org>
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Author: kib Date: Tue Jul 6 18:20:49 2010 New Revision: 209742 URL: http://svn.freebsd.org/changeset/base/209742 Log: In revoke(), verify that VCHR vnode indeed belongs to devfs. Found and tested by: pho MFC after: 1 week Modified: head/sys/kern/vfs_syscalls.c Modified: head/sys/kern/vfs_syscalls.c ============================================================================== --- head/sys/kern/vfs_syscalls.c Tue Jul 6 18:17:31 2010 (r209741) +++ head/sys/kern/vfs_syscalls.c Tue Jul 6 18:20:49 2010 (r209742) @@ -4215,7 +4215,7 @@ revoke(td, uap) vfslocked = NDHASGIANT(&nd); vp = nd.ni_vp; NDFREE(&nd, NDF_ONLY_PNBUF); - if (vp->v_type != VCHR) { + if (vp->v_type != VCHR || vp->v_rdev == NULL) { error = EINVAL; goto out; }
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