Whether a state prisoner alleging unlawful confinement beyond his proper release date may sue for damages under 42 U.S.C. § 1983

QUESTION PRESENTED A prisoner’s “attack on the legality of [his] physical confinement itself ... is the long-established function of habeas corpus.” Preiser v. Rodriguez, 411 U.S. 475, 488 n.8 (1973); see Wilkinson v. Dotson, 544 U.S. 74, 79 (2005) (an “attack[] [on] the very duration of physical confinement ... lies at the core of habeas corpus” (cleaned up)). The question presented is: Whether, consistent with Preiser and its progeny, a state prisoner who alleges that he was unlawfully confined beyond his proper release date may sue for damages under 42 U.S.C. § 1983.