CVE-2026-74730 NFS: Pin the 'struct nfs_server' during a FREE_STATEID call

In the Linux kernel, the following vulnerability has been resolved: NFS: Pin the 'struct nfsserver' during a FREESTATEID call Dan Aloni reports that he was able to hit a use-after-free bug if a FREESTATEID operation gets delayed for whatever reason. Fix this by bumping the refcount of the 'struct...

CVE-2026-74730

This is a use-after-free vulnerability in the Linux kernel NFS subsystem . When a FREE_STATEID operation is delayed, the struct nfs_server object can be freed while operations are still in flight, leading to a use-after-free condition. The fix pins the struct nfs_server by incrementing its refcou...

EUVD-2026-64417

In the Linux kernel, the following vulnerability has been resolved: NFS: Pin the 'struct nfsserver' during a FREESTATEID call Dan Aloni reports that he was able to hit a use-after-free bug if a FREESTATEID operation gets delayed for whatever reason. Fix this by bumping the refcount of the 'struct...

CVE-2026-74727

CVE-2026-74727 is a race condition in the Linux kernel ovpn (OpenVPN) module that leads to a Use-After-Free (UAF) . The root cause is a TOCTOU window in ovpn_nl_peer_set_doit() and ovpn_peer_endpoints_update(): a peer resolved by ID can be concurrently removed (via OVPN_CMD_PEER_DEL, keepalive ex...

CVE-2026-74727 ovpn: skip rehash for peers already removed from by_id

In the Linux kernel, the following vulnerability has been resolved: ovpn: skip rehash for peers already removed from byid ovpnnlpeersetdoit resolves the target peer via ovpnpeergetbyid before taking ovpn-lock. In the window between the lookup which only takes a refcount and the subsequent...

EUVD-2026-64414

In the Linux kernel, the following vulnerability has been resolved: ovpn: skip rehash for peers already removed from byid ovpnnlpeersetdoit resolves the target peer via ovpnpeergetbyid before taking ovpn-lock. In the window between the lookup which only takes a refcount and the subsequent...

EUVD-2026-64412

In the Linux kernel, the following vulnerability has been resolved: enic: fix txhangreset use-after-free on device removal enicremove cancels the reset and changemtuwork items but does not cancel txhangreset. A TX timeout that fires while the device is being removed can schedule enictxhangreset s...

CVE-2026-74725

This CVE affects the enic network driver in the Linux kernel . The root cause is a use-after-free in the tx_hang_reset work item during device removal: enic_remove() cancels the reset and change_mtu_work items but fails to cancel tx_hang_reset. A TX timeout firing while the device is being remove...

CVE-2026-74725 enic: fix tx_hang_reset use-after-free on device removal

In the Linux kernel, the following vulnerability has been resolved: enic: fix txhangreset use-after-free on device removal enicremove cancels the reset and changemtuwork items but does not cancel txhangreset. A TX timeout that fires while the device is being removed can schedule enictxhangreset s...

CVE-2026-74714

CVE-2026-74714 is a use-after-free in the Linux kernel's bpf_iter_tcp_established_batch() function. The root cause is a race condition: when a TCP request_sock is being published onto the ehash chain, its refcount is still zero until after the bucket lock is dropped. The BPF TCP iterator calls pl...

CVE-2026-74714 bpf: tcp: Fix use-after-free in bpf_iter_tcp_established_batch()

In the Linux kernel, the following vulnerability has been resolved: bpf: tcp: Fix use-after-free in bpfitertcpestablishedbatch reqskqueuehashreq publishes a TCPNEWSYNRECV requestsock onto the ehash chain, drops the bucket lock, and only afterwards sets rskrefcnt to 3. Lockless readers such as...

EUVD-2026-64401

In the Linux kernel, the following vulnerability has been resolved: bpf: tcp: Fix use-after-free in bpfitertcpestablishedbatch reqskqueuehashreq publishes a TCPNEWSYNRECV requestsock onto the ehash chain, drops the bucket lock, and only afterwards sets rskrefcnt to 3. Lockless readers such as...

CVE-2026-74705 udp: fix potential use-after-free in tunnel segmentation

In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation skbudptunnelsegment gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb-head, the saved UDP header pointer is no longer...

CVE-2026-74705

CVE-2026-74705 is a use-after-free vulnerability in the Linux kernel UDP tunnel segmentation path. The function __skb_udp_tunnel_segment() obtains a pointer to the UDP header before ensuring the tunnel header resides in the skb head. If a subsequent pull operation reallocates skb->head, the pr...

EUVD-2026-64392

In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation skbudptunnelsegment gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb-head, the saved UDP header pointer is no longer...

CVE-2026-74700

CVE-2026-74700 is a use-after-free vulnerability in the Linux kernel's net/sched/cls_api subsystem (traffic control classifier API). The root cause is a race condition in tc_new_tfilter where a tcf_proto object can be briefly referenced by an unrelated unlocked classifier request, causing tp->...

EUVD-2026-64387

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: Always acquire rtnllock when destroying locked classifiers Another challenge with unlocked filters. There is a short window in tcnewtfilter where a tcfproto can be found and briefly referenced by a totally...

CVE-2026-74700 net/sched: cls_api: Always acquire rtnl_lock when destroying locked classifiers

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: Always acquire rtnllock when destroying locked classifiers Another challenge with unlocked filters. There is a short window in tcnewtfilter where a tcfproto can be found and briefly referenced by a totally...

CVE-2026-74690

CVE-2026-74690 is a Use-After-Free vulnerability in the Linux kernel 's s390/ism (Interrupt Sharing Module) subsystem. An ISM interrupt handler can remain active in parallel with ism_dev_exit(), accessing already-freed sba and ieq data structures. The fix ensures that after unregister_ieq() no ne...

CVE-2026-74690 s390/ism: Fix UAF of sba and ieq during ism_dev_exit()

In the Linux kernel, the following vulnerability has been resolved: s390/ism: Fix UAF of sba and ieq during ismdevexit A ism interrupt handler can be active in parallel with ismdevexit, accessing freed data structures. No new interrupts will be generated after unregisterieq. Drain ongoing interru...