UBUNTU-CVE-2026-74660

In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtnflog: pin the NFLOG backend nflogunregister runs after the per-net teardown so its final RCU grace period also drains readers that obtained the logger from a per-net binding. However, ebtnflog passes an explicit UL...

UBUNTU-CVE-2026-74630

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent in6devget from resurrecting inet6dev in6devget reads dev-ip6ptr under RCU and then unconditionally increments its refcount. Device teardown can clear the pointer and drop the last reference between these operations...

UBUNTU-CVE-2026-74727

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...

UBUNTU-CVE-2026-74661

In the Linux kernel, the following vulnerability has been resolved: mac802154: fix netdev use-after-free in beacon worker mac802154beaconworker reads local-beaconreq under RCU and derives the sub-interface from the request, but then drops the RCU read lock and continues to use both sdata and the...

CVE-2026-74589

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skredir use-after-free in send verdict skpsockmsgverdict takes a socket reference for psock-skredir. tcpbpfsendverdict copies that pointer while holding the source socket lock, but does not take a reference for...

UBUNTU-CVE-2026-74731

In the Linux kernel, the following vulnerability has been resolved: schedext: Skip sub-disable teardown for never-linked sub-schedulers A sub-scheduler enable can fail before scxlinksched links the sched into the hierarchy, e.g. when the parent is already being disabled, and cleanup still runs th...

UBUNTU-CVE-2026-74604

In the Linux kernel, the following vulnerability has been resolved: Revert "thermal/drivers/hwmon: Cleanup coding style a bit" Revert commit 030a48b0f6ce "thermal/drivers/hwmon: Cleanup coding style a bit" that introduced a use-after-free into the error path of thermaladdhwmonsysfs by removing a...

UBUNTU-CVE-2026-74615

In the Linux kernel, the following vulnerability has been resolved: vxlan: do not arm the ageing timer on a device that is down vxlanchangelink arms vxlan-agetimer whenever the requested ageing interval differs from the configured one: if conf.ageinterval != vxlan-cfg.ageinterval...

UBUNTU-CVE-2026-74609

In the Linux kernel, the following vulnerability has been resolved: tipc: read le-link under the node lock in tipcnodelinkdown tipcnodelinkdown caches the link pointer before taking n-lock: struct tipclink l = le-link; / unlocked / if !l return; tipcnodewritelockn; if !tipclinkisestablishingl /...

UBUNTU-CVE-2026-74687

In the Linux kernel, the following vulnerability has been resolved: watchdog: at91sam9wdt: prevent timer rearm during teardown at91ping rearms the watchdog timer from its callback. timerdelete neither waits for a running callback nor prevents it from rearming the timer, so probe failure or driver...

UBUNTU-CVE-2026-74589

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skredir use-after-free in send verdict skpsockmsgverdict takes a socket reference for psock-skredir. tcpbpfsendverdict copies that pointer while holding the source socket lock, but does not take a reference for...

UBUNTU-CVE-2026-74656

In the Linux kernel, the following vulnerability has been resolved: ipv4: fix use-after-free in fibnhcupdatemtu fibnhcupdatemtu walks the nexthop exception table under RTNL, but RTNL does not serialize this walk with PMTU exception updates. The walk uses rcudereferenceprotected with a constant tr...

UBUNTU-CVE-2026-74637

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix group leader use-after-free after sibling detach perfgroupdetach handles leader and sibling detach differently. When the group leader is detached, all siblings are promoted to singleton events and their groupleader...

CVE-2026-74688

In the Linux kernel, the following vulnerability has been resolved: sctp: clear control chunk transport if it is being removed sctpmakeheartbeatack caches the destination transport in chunk-transport without taking a reference. When srcoutofasocok is enabled, the HEARTBEAT ACK may remain queued o...

CVE-2026-74587

In the Linux kernel, the following vulnerability has been resolved: sctp: fix use-after-free of cached ASCONF chunk addiplastasconf caches the outstanding outbound ASCONF chunk. The normal ASCONF-ACK completion path releases the chunk and clears the pointer. However, sctpasconfqueueteardown...

CVE-2026-74614

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: read virtqueues under worker locks Commit bd50c5dc182b "vsock/virtio: add support for device suspend/resume" made the run flags transition from false to true when restore installs replacement virtqueues. The RX, TX...

CVE-2026-74652

In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: cancel RS485 hrtimers after freeing IRQ The RS485 trigger hrtimers are embedded in the devm-managed port and can fire after it is freed. The IRQ handler can arm a timer, so free the IRQ first and then cancel...

CVE-2026-74586

In the Linux kernel, the following vulnerability has been resolved: sctp: clear newtransport when removing a peer sctpprocessasconfparam stores a newly added peer transport in asoc-newtransport. After all parameters in the ASCONF chunk have been processed, sctpsfdoasconf uses this pointer to send...

CVE-2026-74661

In the Linux kernel, the following vulnerability has been resolved: mac802154: fix netdev use-after-free in beacon worker mac802154beaconworker reads local-beaconreq under RCU and derives the sub-interface from the request, but then drops the RCU read lock and continues to use both sdata and the...

CVE-2026-74700

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...