No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
For #47653
Fixes #58754
Change-Id: Ic3ef58b204b946f8bff80310d4c8dfcbb2939a1c
Reviewed-on: https://go-review.googlesource.com/c/go/+/471678
Auto-Submit: Ian Lance Taylor <iant@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>