--- zzzz-none-000/linux-2.6.19.2/fs/binfmt_flat.c	2007-01-10 19:10:37.000000000 +0000
+++ davinci-8020-5505/linux-2.6.19.2/fs/binfmt_flat.c	2007-01-19 14:42:56.000000000 +0000
@@ -551,7 +551,9 @@
 				realdatastart = (unsigned long) -ENOMEM;
 			printk("Unable to allocate RAM for process data, errno %d\n",
 					(int)-datapos);
+			down_write(&current->mm->mmap_sem);
 			do_munmap(current->mm, textpos, text_len);
+			up_write(&current->mm->mmap_sem);
 			ret = realdatastart;
 			goto err;
 		}
@@ -573,8 +575,10 @@
 		}
 		if (result >= (unsigned long)-4096) {
 			printk("Unable to read data+bss, errno %d\n", (int)-result);
+			down_write(&current->mm->mmap_sem);
 			do_munmap(current->mm, textpos, text_len);
 			do_munmap(current->mm, realdatastart, data_len + extra);
+			up_write(&current->mm->mmap_sem);
 			ret = result;
 			goto err;
 		}
@@ -638,8 +642,10 @@
 		}
 		if (result >= (unsigned long)-4096) {
 			printk("Unable to read code+data+bss, errno %d\n",(int)-result);
+			down_write(&current->mm->mmap_sem);
 			do_munmap(current->mm, textpos, text_len + data_len + extra +
 				MAX_SHARED_LIBS * sizeof(unsigned long));
+			up_write(&current->mm->mmap_sem);
 			ret = result;
 			goto err;
 		}