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| author | realmadsci <71108352+realmadsci@users.noreply.github.com> | 2021-03-12 14:46:49 -0500 |
|---|---|---|
| committer | realmadsci <71108352+realmadsci@users.noreply.github.com> | 2021-03-15 12:07:22 -0700 |
| commit | 281cd47c154e7cd642e76482f5f07e9f1584c561 (patch) | |
| tree | b6805618727e8b180ae5c707c8dd4d71c7eaeaa5 | |
| parent | 01ad0f3c6a45e28eb99e7076f97af2e2a9516c45 (diff) | |
| download | afl++-281cd47c154e7cd642e76482f5f07e9f1584c561.tar.gz | |
libqasan: Add checks for read() and write()
| -rw-r--r-- | qemu_mode/libqasan/hooks.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/qemu_mode/libqasan/hooks.c b/qemu_mode/libqasan/hooks.c index 9c406c74..0e6c3e08 100644 --- a/qemu_mode/libqasan/hooks.c +++ b/qemu_mode/libqasan/hooks.c @@ -51,6 +51,7 @@ ssize_t write(int fd, const void *buf, size_t count) { 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 @@ ssize_t read(int fd, void *buf, size_t count) { 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); |