UBUNTU-CVE-2026-68294

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: restrict socket creation to the initial network namespace QRTR keeps its entire port and node state in module-global variables that are not partitioned per network namespace: qrtrlocalnid is a single global node id...

CVE-2026-68322

In the Linux kernel, the following vulnerability has been resolved: rds: Fix inet6addrlst NULL dereference when IPv6 is disabled When booting with the 'ipv6.disable=1' parameter, inet6addrlst is never initialized because inet6init exits before addrconfinit is called to initialize it. An attempt t...

CVE-2026-68342

In the Linux kernel, the following vulnerability has been resolved: ovpn: avoid putting unrelated P2P peer on socket release ovpnpeerreleasep2p is called when an OVPN UDP socket is being destroyed. It checks the currently published P2P peer and releases it only if that peer still uses the socket...

CVE-2026-68294

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: restrict socket creation to the initial network namespace QRTR keeps its entire port and node state in module-global variables that are not partitioned per network namespace: qrtrlocalnid is a single global node id...

CVE-2026-68397

In the Linux kernel, the following vulnerability has been resolved: net/iucv: take a reference on the socket found in afiucvhsrcv afiucvhsrcv looks up the destination socket under iucvsklist.lock, drops the lock, and then passes the socket to the afiucvhscallback handlers without holding a...

CVE-2026-68404

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: use wiphy work for socket owner autodisconnect nl80211netlinknotify walks the cfg80211 wireless device list when a NETLINKGENERIC socket is released. If the socket owns a connection, the notifier queues the embedd...

CVE-2026-68141

In the Linux kernel, the following vulnerability has been resolved: net/afiucv: fix NULL deref in afiucvhscallbacksyn afiucvhscallbacksyn allocates the child socket with GFPATOMIC. If the allocation fails, nsk is NULL. The connection-refused path is entered when the listen state check fails, the...

CVE-2026-68137

In the Linux kernel, the following vulnerability has been resolved: net/x25: fix use-after-free in x25killbyneigh x25killbyneigh walks the global X.25 socket list looking for sockets attached to a terminating neighbour. x25listlock protects list membership while the lookup is in progress, but it...

CVE-2026-68123

In the Linux kernel, the following vulnerability has been resolved: openvswitch: fix GSO userspace truncation underflow OVSACTIONATTRTRUNC currently stores a delta from the original skb length in OVSCBskb-cutlen. When a later userspace action segments a GSO skb, queuegsopackets reuses that delta...

CVE-2026-68121

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

CVE-2026-68117

In the Linux kernel, the following vulnerability has been resolved: tipc: clear sock-sk on the failed-insert path in tipcskcreate When tipcskcreate fails to insert the new socket tipcskinsert returns non-zero, its error path frees the sk with skfree but leaves sock-sk pointing at the freed object...

DEBIAN-CVE-2026-68117

In the Linux kernel, the following vulnerability has been resolved: tipc: clear sock-sk on the failed-insert path in tipcskcreate When tipcskcreate fails to insert the new socket tipcskinsert returns non-zero, its error path frees the sk with skfree but leaves sock-sk pointing at the freed object...

UBUNTU-CVE-2026-68117

In the Linux kernel, the following vulnerability has been resolved: tipc: clear sock-sk on the failed-insert path in tipcskcreate When tipcskcreate fails to insert the new socket tipcskinsert returns non-zero, its error path frees the sk with skfree but leaves sock-sk pointing at the freed object...

CVE-2026-68137

In the Linux kernel, the following vulnerability has been resolved: net/x25: fix use-after-free in x25killbyneigh x25killbyneigh walks the global X.25 socket list looking for sockets attached to a terminating neighbour. x25listlock protects list membership while the lookup is in progress, but it...

CVE-2026-68141

In the Linux kernel, the following vulnerability has been resolved: net/afiucv: fix NULL deref in afiucvhscallbacksyn afiucvhscallbacksyn allocates the child socket with GFPATOMIC. If the allocation fails, nsk is NULL. The connection-refused path is entered when the listen state check fails, the...

CVE-2026-68118

In the Linux kernel, the following vulnerability has been resolved: tcp: challenge ACK for non-exact RST in SYN-RECEIVED The SYN-RECEIVED request-socket path in tcpcheckreq accepts an in-window RST without requiring SEG.SEQ to exactly match RCV.NXT. A non-exact RST therefore removes the request...

CVE-2026-68140

In the Linux kernel, the following vulnerability has been resolved: net/iucv: fix use-after-free of a severed iucvpath afiucv queues not-yet-received message notifications on iucv-messageq, each holding a raw pointer to the connection's iucvpath. When the peer severs the connection, iucvseverpath...

UBUNTU-CVE-2026-68141

In the Linux kernel, the following vulnerability has been resolved: net/afiucv: fix NULL deref in afiucvhscallbacksyn afiucvhscallbacksyn allocates the child socket with GFPATOMIC. If the allocation fails, nsk is NULL. The connection-refused path is entered when the listen state check fails, the...

CVE-2026-68428

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Fix use-after-free on vendor module reload mmudestroycaches destroys ptelistdesccache and mmupageheadercache, but leaves both pointers unchanged. The pointers live in kvm.ko, and therefore survive when a vendor modu...

CVE-2026-68427

In the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Fix use-after-free in host1xboclearcachedmappings host1xbounpin drops the last reference to the mapping and frees it, so we can't dereference mapping afterwards. The cache itself outlives the mapping, so use the cach...