CVE-2026-53262

A flaw was found in the Linux kernel's pppol2tp module. This Use-After-Free UAF vulnerability arises from improper handling of session references within the pppol2tpioctl function. A local attacker could exploit this by triggering a race condition during data copying, leading to the dereferencing...

CVE-2026-53262

In the Linux kernel, the following vulnerability has been resolved: l2tp: pppol2tp: hold reference to session in pppol2tpioctl pppol2tpioctl read sock-sk-skuserdata directly without any locks or reference counting. If a controllable sleep was induced during copyfromuser e.g. via a userfaultfd pag...