src: check return value of ftell()

If ftell() returns -1L, abort instead of passing static_cast<size_t>(-1)
to the vector allocator and fread().

Refs: #46463
PR-URL: #46495
Reviewed-By: Gireesh Punathil <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>

src/node_snapshotable.cc

@@ -877,6 +877,7 @@ bool SnapshotData::FromBlob(SnapshotData* out, FILE* in) {
   int err = fseek(in, 0, SEEK_END);
   CHECK_EQ(err, 0);
   size_t size = ftell(in);
+  CHECK_NE(size, static_cast<size_t>(-1L));
   err = fseek(in, 0, SEEK_SET);
   CHECK_EQ(err, 0);