In the version of this article initially published, due to a figure preparation error, the image shown in the lower-right panel of Extended Data Fig. 7e for the Casp8 cKI Mlkl KO vav.cre dot plot was an inadvertent duplicate of the adjacent dot plot (Mlkl KO vav.cre). The figure legend to Extended Data Fig. 7e–g also requires correction. It should read: “e–g, Flow cytometry analysis of bone marrow (e), mesenteric lymph node (f), and spleen (g) cells from the mice in d”. Due to the age of the article, the figure cannot be updated directly; the revised Extended Data Fig. 7, panel e, is available as Supplementary Information alongside this amendment. This amendment serves to update the article.