The string written to the buffer by read() is not null-terminated,
but currently drmParsePciBusInfo() places null character only at the end of the buffer, not at the end of the
string.
As a result, the string passed to sscanf() contains an uninitialized value.
This patch changes to places null character at the end of the string.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99045
Signed-off-by: Taro Yamada <archer_ame@yahoo.co.jp>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
LT_INIT([disable-static])
-PKG_CHECK_MODULES(PTHREADSTUBS, pthread-stubs)
+
AC_SUBST(PTHREADSTUBS_CFLAGS)
AC_SUBST(PTHREADSTUBS_LIBS)
if (fd < 0)
return -errno;
- ret = read(fd, data, sizeof(data));
- data[sizeof(data)-1] = '\0';
+ ret = read(fd, data, sizeof(data)-1);
close(fd);
if (ret < 0)
return -errno;
+ data[ret] = '\0';
#define TAG "PCI_SLOT_NAME="
str = strstr(data, TAG);