X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=fs%2Fcompat.c;h=d1ece79b641144c8fb8697a31d8d2cc3ecac2c0a;hb=f4c82548d4fa86fb3606f6ee219b070b88592a1e;hp=fe3c9bf876089f1d71f7b45b92fb5110693eb599;hpb=5579a782ad7ffa162b1060993e4a298dd50e7a33;p=linux-2.6-omap-h63xx.git

diff --git a/fs/compat.c b/fs/compat.c
index fe3c9bf8760..d1ece79b641 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1393,10 +1393,20 @@ int compat_do_execve(char * filename,
 	if (!bprm)
 		goto out_ret;
 
+	retval = mutex_lock_interruptible(&current->cred_exec_mutex);
+	if (retval < 0)
+		goto out_free;
+
+	retval = -ENOMEM;
+	bprm->cred = prepare_exec_creds();
+	if (!bprm->cred)
+		goto out_unlock;
+	check_unsafe_exec(bprm);
+
 	file = open_exec(filename);
 	retval = PTR_ERR(file);
 	if (IS_ERR(file))
-		goto out_kfree;
+		goto out_unlock;
 
 	sched_exec();
 
@@ -1410,14 +1420,10 @@ int compat_do_execve(char * filename,
 
 	bprm->argc = compat_count(argv, MAX_ARG_STRINGS);
 	if ((retval = bprm->argc) < 0)
-		goto out_mm;
+		goto out;
 
 	bprm->envc = compat_count(envp, MAX_ARG_STRINGS);
 	if ((retval = bprm->envc) < 0)
-		goto out_mm;
-
-	retval = security_bprm_alloc(bprm);
-	if (retval)
 		goto out;
 
 	retval = prepare_binprm(bprm);
@@ -1438,19 +1444,16 @@ int compat_do_execve(char * filename,
 		goto out;
 
 	retval = search_binary_handler(bprm, regs);
-	if (retval >= 0) {
-		/* execve success */
-		security_bprm_free(bprm);
-		acct_update_integrals(current);
-		free_bprm(bprm);
-		return retval;
-	}
+	if (retval < 0)
+		goto out;
 
-out:
-	if (bprm->security)
-		security_bprm_free(bprm);
+	/* execve succeeded */
+	mutex_unlock(&current->cred_exec_mutex);
+	acct_update_integrals(current);
+	free_bprm(bprm);
+	return retval;
 
-out_mm:
+out:
 	if (bprm->mm)
 		mmput(bprm->mm);
 
@@ -1460,7 +1463,10 @@ out_file:
 		fput(bprm->file);
 	}
 
-out_kfree:
+out_unlock:
+	mutex_unlock(&current->cred_exec_mutex);
+
+out_free:
 	free_bprm(bprm);
 
 out_ret:
@@ -1684,8 +1690,9 @@ asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
 			return -EFAULT;
 
 		to = &end_time;
-		if (poll_select_set_timeout(to, tv.tv_sec,
-					    tv.tv_usec * NSEC_PER_USEC))
+		if (poll_select_set_timeout(to,
+				tv.tv_sec + (tv.tv_usec / USEC_PER_SEC),
+				(tv.tv_usec % USEC_PER_SEC) * NSEC_PER_USEC))
 			return -EINVAL;
 	}