patch-2.3.99-pre7 linux/fs/binfmt_aout.c

• Lines: 25
• Date: Tue May 9 16:18:27 2000
• Orig file: v2.3.99-pre6/linux/fs/binfmt_aout.c
• Orig date: Wed Apr 26 16:34:09 2000

diff -u --recursive --new-file v2.3.99-pre6/linux/fs/binfmt_aout.c linux/fs/binfmt_aout.c
@@ -363,20 +363,24 @@
 			goto beyond_if;
 		}
 
+		down(&current->mm->mmap_sem);
 		error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
 			PROT_READ | PROT_EXEC,
 			MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
 			fd_offset);
+		up(&current->mm->mmap_sem);
 
 		if (error != N_TXTADDR(ex)) {
 			send_sig(SIGKILL, current, 0);
 			return error;
 		}
 
+		down(&current->mm->mmap_sem);
  		error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
 				PROT_READ | PROT_WRITE | PROT_EXEC,
 				MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
 				fd_offset + ex.a_text);
+		up(&current->mm->mmap_sem);
 		if (error != N_DATADDR(ex)) {
 			send_sig(SIGKILL, current, 0);
 			return error;