CVE-2026-64009

In the Linux kernel, the following vulnerability has been resolved: xfrm: Check for underflow in xfrmstatemtu Leo Lin reported OOB write issue in esp component: xfrmstatemtu returns u32 but performs its arithmetic in unsigned modulo-2^32 space using an attacker-influenced "headerlen + authsize +...

CVE-2026-64009 xfrm: Check for underflow in xfrm_state_mtu

In the Linux kernel, the following vulnerability has been resolved: xfrm: Check for underflow in xfrmstatemtu Leo Lin reported OOB write issue in esp component: xfrmstatemtu returns u32 but performs its arithmetic in unsigned modulo-2^32 space using an attacker-influenced "headerlen + authsize +...

CVE-2026-64009

The CVE-2026-64009 family affects the Linux kernel xfrm subsystem, specifically an out-of-bounds write in ESP handling due to an underflow in xfrm_state_mtu(). The function computes using unsigned arithmetic: it subtracts attacker-influenced header_len + authsize + net_adj from a small mtu, allow...

CVE-2026-64009 xfrm: Check for underflow in xfrm_state_mtu

In the Linux kernel, the following vulnerability has been resolved: xfrm: Check for underflow in xfrmstatemtu Leo Lin reported OOB write issue in esp component: xfrmstatemtu returns u32 but performs its arithmetic in unsigned modulo-2^32 space using an attacker-influenced "headerlen + authsize +...

PT-2026-61326

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds write issue exists in the ESP component of the xfrm subsystem. The xfrm state mtu function performs arithmetic in unsigned modulo-2^32 space, subtracting an...