CVE-2026-80843 xfrm: fix xfrm_state_construct() auth-trunc leak

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix xfrmstateconstruct auth-trunc leak attachauthtrunc can allocate x-aalg while leaving x-props.aalgo at zero when the selected auth algorithm has no sadbalgid. One real case is cmacaes. xfrmstateconstruct then treats...

CVE-2026-80843

Linux kernel IPsec transform (xfrm) subsystem is affected by a memory leak in xfrm_state_construct() . When an authentication algorithm with no sadb_alg_id (e.g., cmac(aes) ) is selected, attach_auth_trunc() allocates x->aalg but leaves x->props.aalgo at zero. The subsequent call to attach_...

PT-2026-85721

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix xfrm state construct auth-trunc leak attach auth trunc can allocate x-aalg while leaving x-props.aalgo at zero when the selected auth algorithm has no sadb alg id. One real case is cmacaes. xfrm state construct then...