A security issue has been found in Firefox before version 91. An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash.
A security issue has been found in Firefox before version 91. An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash.
https://www.mozilla.org/security/advisories/mfsa2021-33/ https://bugzilla.mozilla.org/show_bug.cgi?id=1707774