Date: Tue, 4 Aug 2015 10:40:09 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r286283 - head/sys/geom Message-ID: <201508041040.t74Ae9j1040814@repo.freebsd.org>
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Author: trasz Date: Tue Aug 4 10:40:08 2015 New Revision: 286283 URL: https://svnweb.freebsd.org/changeset/base/286283 Log: Fix panic triggered by code like this: open("/dev/md0", O_EXEC); Discussed with: kib@, mav@ MFC after: 1 month Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D3051 Modified: head/sys/geom/geom_dev.c Modified: head/sys/geom/geom_dev.c ============================================================================== --- head/sys/geom/geom_dev.c Tue Aug 4 09:45:10 2015 (r286282) +++ head/sys/geom/geom_dev.c Tue Aug 4 10:40:08 2015 (r286283) @@ -358,6 +358,13 @@ 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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