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

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the xfrm module where the xfrm state construct function can cause a memory leak. This occurs when attach auth trunc allocates x-aalg but leaves x-props.aalgo at zero,...