X-Git-Url: http://bbs.cooldavid.org/git/?a=blobdiff_plain;f=include%2Flinux%2Fcoredump.h;h=59579cfee6a08f97da04cc810ba0a54ab535771c;hb=0eead9ab41da33644ae2c97c57ad03da636a0422;hp=8ba66a9d9022c7d0ddbbcb984b8839dabb2b91f8;hpb=12ff4bf58b64ad3b8fb8e27889c99dcd5aa6fb0b;p=net-next-2.6.git

diff --git a/include/linux/coredump.h b/include/linux/coredump.h
index 8ba66a9d902..59579cfee6a 100644
--- a/include/linux/coredump.h
+++ b/include/linux/coredump.h
@@ -11,7 +11,7 @@
  */
 static inline int dump_write(struct file *file, const void *addr, int nr)
 {
-	return file->f_op->write(file, addr, nr, &file->f_pos) == nr;
+	return access_ok(VERIFY_READ, addr, nr) && file->f_op->write(file, addr, nr, &file->f_pos) == nr;
 }
 
 static inline int dump_seek(struct file *file, loff_t off)