Date: Tue, 27 Mar 2018 17:43:03 +0000 (UTC) From: Brooks Davis <brooks@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: r331633 - stable/10/sys/cam/scsi Message-ID: <201803271743.w2RHh3NC070121@repo.freebsd.org>
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Author: brooks Date: Tue Mar 27 17:43:03 2018 New Revision: 331633 URL: https://svnweb.freebsd.org/changeset/base/331633 Log: MFC r330820: Reject ioctls to SCSI enclosures from 32-bit compat processes. The ioctl objects contain pointers and require translation and some refactoring of the infrastructure to work. For now prevent opertion on garbage values. This is very slightly overbroad in that ENCIOC_INIT is safe. Reviewed by: imp, kib Obtained from: CheriBSD Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14671 Modified: stable/10/sys/cam/scsi/scsi_enc.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/cam/scsi/scsi_enc.c ============================================================================== --- stable/10/sys/cam/scsi/scsi_enc.c Tue Mar 27 17:42:04 2018 (r331632) +++ stable/10/sys/cam/scsi/scsi_enc.c Tue Mar 27 17:43:03 2018 (r331633) @@ -27,6 +27,8 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include "opt_compat.h" + #include <sys/param.h> #include <sys/conf.h> @@ -37,8 +39,10 @@ __FBSDID("$FreeBSD$"); #include <sys/lock.h> #include <sys/malloc.h> #include <sys/mutex.h> +#include <sys/proc.h> #include <sys/queue.h> #include <sys/sx.h> +#include <sys/sysent.h> #include <sys/systm.h> #include <sys/sysctl.h> #include <sys/types.h> @@ -351,6 +355,10 @@ enc_ioctl(struct cdev *dev, u_long cmd, caddr_t arg_ad void *addr; int error, i; +#ifdef COMPAT_FREEBSD32 + if (SV_PROC_FLAG(td->td_proc, SV_ILP32)) + return (ENOTTY); +#endif if (arg_addr) addr = *((caddr_t *) arg_addr);
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