diff options
| author | sef <sef@FreeBSD.org> | 1995-09-13 02:12:51 +0000 |
|---|---|---|
| committer | sef <sef@FreeBSD.org> | 1995-09-13 02:12:51 +0000 |
| commit | 8925d45122fe83df78d676a53306b0b2faade050 (patch) | |
| tree | 84c9a37336133bb6bab449551046237d1dacc67e /sys/i386/ibcs2/imgact_coff.c | |
| parent | ceb4b5097101339e2b70f809790947544f27ec45 (diff) | |
| download | FreeBSD-src-8925d45122fe83df78d676a53306b0b2faade050.zip FreeBSD-src-8925d45122fe83df78d676a53306b0b2faade050.tar.gz | |
Unlock the vnode after checking permissions; this is necessary to prevent
a panic whenever an iBCS2 file is exec'd.
Obtained from: FreeBSD
Diffstat (limited to 'sys/i386/ibcs2/imgact_coff.c')
| -rw-r--r-- | sys/i386/ibcs2/imgact_coff.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/i386/ibcs2/imgact_coff.c b/sys/i386/ibcs2/imgact_coff.c index b866d1d..9529e11 100644 --- a/sys/i386/ibcs2/imgact_coff.c +++ b/sys/i386/ibcs2/imgact_coff.c @@ -26,7 +26,7 @@ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * - * $Id: imgact_coff.c,v 1.5 1995/08/24 10:30:36 davidg Exp $ + * $Id: imgact_coff.c,v 1.6 1995/08/28 09:18:36 julian Exp $ */ #include <sys/param.h> @@ -198,6 +198,12 @@ coff_load_file(struct proc *p, char *name) if (error = VOP_OPEN(vnodep, FREAD, p->p_ucred, p)) goto fail; + /* + * Lose the lock on the vnode. It's no longer needed, and must not + * exist for the pagefault paging to work below. + */ + VOP_UNLOCK(vnodep); + if (error = vm_mmap(kernel_map, (vm_offset_t *) &ptr, PAGE_SIZE, |
