commit 281cd47c154e7cd642e76482f5f07e9f1584c561
author realmadsci <71108352+realmadsci@users.noreply.github.com> Fri Mar 12 14:46:49 2021 -0500
committer realmadsci <71108352+realmadsci@users.noreply.github.com> Mon Mar 15 12:07:22 2021 -0700
tree b6805618727e8b180ae5c707c8dd4d71c7eaeaa5
parent 01ad0f3c6a45e28eb99e7076f97af2e2a9516c45

libqasan: Add checks for read() and write()

qemu_mode/libqasan/hooks.c

diff --git a/qemu_mode/libqasan/hooks.c b/qemu_mode/libqasan/hooks.c
index 9c406c7..0e6c3e0 100644
--- a/qemu_mode/libqasan/hooks.c
+++ b/qemu_mode/libqasan/hooks.c
@@ -51,6 +51,7 @@
   void *rtv = __builtin_return_address(0);
 
   QASAN_DEBUG("%14p: write(%d, %p, %zu)\n", rtv, fd, buf, count);
+  QASAN_LOAD(buf, count);
   ssize_t r = __lq_libc_write(fd, buf, count);
   QASAN_DEBUG("\t\t = %zd\n", r);
 
@@ -63,6 +64,7 @@
   void *rtv = __builtin_return_address(0);
 
   QASAN_DEBUG("%14p: read(%d, %p, %zu)\n", rtv, fd, buf, count);
+  QASAN_STORE(buf, count);
   ssize_t r = __lq_libc_read(fd, buf, count);
   QASAN_DEBUG("\t\t = %zd\n", r);