Date: Sun, 18 Oct 2015 14:36:05 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r289512 - stable/10/sys/geom Message-ID: <201510181436.t9IEa5Lf093517@repo.freebsd.org>
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Author: trasz Date: Sun Oct 18 14:36:04 2015 New Revision: 289512 URL: https://svnweb.freebsd.org/changeset/base/289512 Log: MFC r286283: Fix panic triggered by code like this: open("/dev/md0", O_EXEC); Sponsored by: The FreeBSD Foundation Modified: stable/10/sys/geom/geom_dev.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/geom/geom_dev.c ============================================================================== --- stable/10/sys/geom/geom_dev.c Sun Oct 18 14:34:13 2015 (r289511) +++ stable/10/sys/geom/geom_dev.c Sun Oct 18 14:36:04 2015 (r289512) @@ -356,6 +356,13 @@ g_dev_open(struct cdev *dev, int flags, #else e = 0; #endif + + /* + * This happens on attempt to open a device node with O_EXEC. + */ + if (r + w + e == 0) + return (EINVAL); + if (w) { /* * When running in very secure mode, do not allow
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