fix(libsinsp): Add a couple of NULL checks

Signed-off-by: Gerald Combs <[email protected]>
falcosecurity · Oct 6, 2023 · 0b57876 · 0b57876
1 parent c042300
commit 0b57876
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Showing 2 changed files with 14 additions and 1 deletion.
diff --git a/userspace/libsinsp/filterchecks.cpp b/userspace/libsinsp/filterchecks.cpp
@@ -429,6 +429,11 @@ uint8_t* sinsp_filter_check_fspath::extract(sinsp_evt* evt, OUT uint32_t* len, b
 	{
 		sinsp_threadinfo* tinfo = evt->get_thread_info();
 
+		if(tinfo == NULL)
+		{
+			return NULL;
+		}
+
 		std::filesystem::path tstr = tinfo->get_cwd() + m_tstr;
 		m_tstr = std::filesystem::absolute(tstr).lexically_normal().string();
 	}

diff --git a/userspace/libsinsp/parsers.cpp b/userspace/libsinsp/parsers.cpp
@@ -2807,7 +2807,15 @@ void sinsp_parser::parse_dirfd(sinsp_evt *evt, char* name, int64_t dirfd, OUT st
 	}
 	else if(dirfd == PPM_AT_FDCWD)
 	{
-		*sdir = evt->m_tinfo->get_cwd();
+		if(evt->m_tinfo != NULL)
+		{
+			*sdir = evt->m_tinfo->get_cwd();
+		}
+		else
+		{
+			ASSERT(false);
+			*sdir = "<UNKNOWN>";
+		}
 	}
 	else
 	{