CVE-2026-72463

CVE-2026-72463 (Linux kernel xfrm): The flaw lets a use-after-free occur in xfrm async resumption when xfrm_rcv_cb changes skb->dev to a tunnel device without taking a reference, risking tunnel dev UAF and orig device refcount leaks. The patch stashs the original skb->dev and extends RCU pr...

EUVD-2026-59362

In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix dev use-after-free in xfrm async resumption xfrm async resumption hold skb-dev refcnt until after transportfinish. However, xfrmrcvcb may modify skb-dev to tunnel dev without taking device reference, such as vtircvcb. T...

CVE-2026-72463 xfrm: Fix dev use-after-free in xfrm async resumption

In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix dev use-after-free in xfrm async resumption xfrm async resumption hold skb-dev refcnt until after transportfinish. However, xfrmrcvcb may modify skb-dev to tunnel dev without taking device reference, such as vtircvcb. T...

CVE-2026-72463 xfrm: Fix dev use-after-free in xfrm async resumption

In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix dev use-after-free in xfrm async resumption xfrm async resumption hold skb-dev refcnt until after transportfinish. However, xfrmrcvcb may modify skb-dev to tunnel dev without taking device reference, such as vtircvcb. T...

EUVD-2026-59350

In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix xfrm state cache insertion race The xfrm input state cache insertion code checks the validity of the state before acquiring the global xfrmstatelock. Thus it's possible for someone else to kill the state after it passed...

CVE-2026-72451

In the Linux kernel, CVE-2026-72451 concerns the xfrm input state cache insertion path. The vulnerability arises because the code checks state validity before acquiring the global xfrm_state_lock, allowing a race where another party could kill the state after validation and cause a dead state to ...

CVE-2026-72451 xfrm: Fix xfrm state cache insertion race

In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix xfrm state cache insertion race The xfrm input state cache insertion code checks the validity of the state before acquiring the global xfrmstatelock. Thus it's possible for someone else to kill the state after it passed...

CVE-2026-72451 xfrm: Fix xfrm state cache insertion race

In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix xfrm state cache insertion race The xfrm input state cache insertion code checks the validity of the state before acquiring the global xfrmstatelock. Thus it's possible for someone else to kill the state after it passed...

CVE-2026-72450

The CVE-2026-72450 entry concerns a Linux kernel xfrm (IPsec) weakness where an AF_UNSPEC selector with large prefixlen could cause a shift-out-of-bounds in xfrm_selector_match() when matched against an IPv4 flow with XFRM_STATE_AF_UNSPEC set. The fixes implement: (1) rejecting mismatched familie...

EUVD-2026-59349

In the Linux kernel, the following vulnerability has been resolved: xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrmselectormatch due to AFUNSPEC selector with large prefixlen e.g. 128 matched against IPv4 flow when XFRMSTATEAFUNSPEC is set...

CVE-2026-72450 xfrm: validate selector family and prefixlen during match

In the Linux kernel, the following vulnerability has been resolved: xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrmselectormatch due to AFUNSPEC selector with large prefixlen e.g. 128 matched against IPv4 flow when XFRMSTATEAFUNSPEC is set...

CVE-2026-72450 xfrm: validate selector family and prefixlen during match

In the Linux kernel, the following vulnerability has been resolved: xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrmselectormatch due to AFUNSPEC selector with large prefixlen e.g. 128 matched against IPv4 flow when XFRMSTATEAFUNSPEC is set...

EUVD-2026-58895

In the Linux kernel, the following vulnerability has been resolved: xfrm: natkeepalive: avoid double free on send error natkeepalivesend frees the keepalive skb whenever the IPv4 or IPv6 send helper reports an error. That cleanup is only correct before the skb is handed to the output path. Once...

CVE-2026-72137

CVE-2026-72137 : In the Linux kernel, the xfrm nat_keepalive path suffers a double-free of the keepalive skb on send errors. Specifically, nat_keepalive_send() frees the skb when IPv4/IPv6 send helpers report an error, but after ip_build_and_send_pkt() or ip6_xmit() takes ownership the cleanup is...

CVE-2026-72137 xfrm: nat_keepalive: avoid double free on send error

In the Linux kernel, the following vulnerability has been resolved: xfrm: natkeepalive: avoid double free on send error natkeepalivesend frees the keepalive skb whenever the IPv4 or IPv6 send helper reports an error. That cleanup is only correct before the skb is handed to the output path. Once...

EUVD-2026-58894

In the Linux kernel, the following vulnerability has been resolved: xfrm: xfrminterface: require CAPNETADMIN in the device netns for changelink xfrmichangelink operates on at most two netns, devnetdev and the interface link netns xi-net. They differ once the device is created in or moved to a net...

PT-2026-72325

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to July 2026 Description A double free issue exists in the xfrm component of the Linux kernel. The nat keepalive send function frees the keepalive skb socket buffer whenever the IPv4 or IPv6 send helper reports an...

PT-2026-72324

In the Linux kernel, the following vulnerability has been resolved: xfrm: xfrm interface: require CAP NET ADMIN in the device netns for changelink xfrmi changelink operates on at most two netns, dev netdev and the interface link netns xi-net. They differ once the device is created in or moved to ...

PT-2026-72639

In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix xfrm state cache insertion race The xfrm input state cache insertion code checks the validity of the state before acquiring the global xfrm state lock. Thus it's possible for someone else to kill the state after it pass...

PT-2026-72638

In the Linux kernel, the following vulnerability has been resolved: xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrm selector match due to AF UNSPEC selector with large prefixlen e.g. 128 matched against IPv4 flow when XFRM STATE AF UNSPEC is...