UBUNTU-CVE-2026-74573

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu-v3-iommufd: Require exactly one Stream ID for a vDEVICE armvsmmuvsidtosid maps a guest's vSID to a single physical Stream ID taken from master-streams0, assuming a device has exactly one stream. A device with sever...

UBUNTU-CVE-2026-74553

In the Linux kernel, the following vulnerability has been resolved: hwmon: nct6775-core Fix number of temperature registers for NCT6116 Unlike NCT6106, NCT6116 only has three temperature registers, and with it only three temperature source and temperature source configuration registers. The...

UBUNTU-CVE-2026-74551

In the Linux kernel, the following vulnerability has been resolved: hwmon: nzxt-smart2 DMA-align output buffer Sashiko reports: When sendoutputreport calls hidhwoutputreport, the underlying USB HID core calls usbinterruptmsg which maps this buffer directly for DMA. When the DMA mapping flushes or...

UBUNTU-CVE-2026-74570

In the Linux kernel, the following vulnerability has been resolved: ntfs: harden runlist realloc size calculations Add a shared helper to safely convert runlist element counts to byte sizes using overflow checks, and use it in both ntfsrlrealloc and ntfsrlreallocnofail...

UBUNTU-CVE-2026-74563

In the Linux kernel, the following vulnerability has been resolved: rds: tcp: hold the RCU lock across ipv6chkaddr in rdstcpladdrcheck rdstcpladdrcheck looks up a scoped IPv6 interface with devgetbyindexrcu, drops the RCU read-side lock, and only then passes the bare struct netdevice into...

UBUNTU-CVE-2026-74565

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: make nftobject rhltable per table The nftobject rhltable is global, this allows for accessing objects that are being dismangled from lookup path by other existing netns. Given the nftobjdestroy releases the...

UBUNTU-CVE-2026-74569

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: widen NAT rewrite delta to s32 in siphelptcp siphelptcp stores the size change of each NAT-rewritten SIP message in s16 diff and accumulates it in s16 tdiff, but a single message can grow by more than...

UBUNTU-CVE-2026-74566

In the Linux kernel, the following vulnerability has been resolved: keys: make keyring key-chunk byte order agree with keyringdiffobjects keyringgetkeychunk loads description bytes into the index chunk low address first, while keyringdiffobjects numbers the first differing bit from the low end an...

UBUNTU-CVE-2026-74550

In the Linux kernel, the following vulnerability has been resolved: net: do not send ICMP/NDISC Redirects when peer allocation fails When inetgetpeerv4 or inetgetpeerv6 fails to allocate a peer entry under memory pressure or tree size caps, redirect handlers previously fell back to sending...

UBUNTU-CVE-2026-74571

In the Linux kernel, the following vulnerability has been resolved: btrfs: skip global block reserve accounting for rescue mounts BUG Mounting with rescue=ibadroots after corrupting the block group tree root triggers a NULL pointer dereference: BUG: kernel NULL pointer dereference, address:...

UBUNTU-CVE-2026-74564

In the Linux kernel, the following vulnerability has been resolved: netfilter: xthashlimit: validate hashtable supports XTHASHLIMITRATEMATCH The XTHASHLIMITRATEMATCH flag mode changes the semantics of the dsthashent structure which represents an entry in the hashtable. There is a union area which...

UBUNTU-CVE-2026-74577

In the Linux kernel, the following vulnerability has been resolved: net: mpls: initialize rtmtos in mplsgetroute mplsgetroute builds the RTMNEWROUTE reply to an RTMGETROUTE request by filling a struct rtmsg allocated from an skb whose data area is not zeroed allocskbNLMSGGOODSIZE, .... It sets...

UBUNTU-CVE-2026-74574

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix fdev setup failure cleanup in idxdcdevopen The faileddevadd and faileddevname paths drop the file-device reference while wq-wqlock is still held. If putdevicefdev drops the last reference, idxdfiledevrelease...

UBUNTU-CVE-2026-74576

In the Linux kernel, the following vulnerability has been resolved: mm/slab: prevent unbounded recursion in free path with new kmalloc type Commit 280ea9c3154b "mm/slab: avoid allocating slabobjext array from its own slab" avoided recursive allocation of objexts from kmalloc caches of the same...

UBUNTU-CVE-2026-74562

In the Linux kernel, the following vulnerability has been resolved: nexthop: take nh-lock for f6ilist walks in replace check and notify fib6checknhlist and nexthopreplacenotify walk nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock. IPv6 RTMNEWROUTE/RTMDELROUTE run...

UBUNTU-CVE-2026-74530

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hold conn in hciconnectbigsync callback There is theoretical UAF if the conn is freed while the hcisync task is running. Hold refcount to avoid that. Handle NULL hcon, return 0 + do nothing to match the previo...

UBUNTU-CVE-2026-74538

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: lock sk in isoconnectind Accessing isopisk-conn requires locksock, which is not taken in the "ev3" part of isoconnectind. It may also be NULL if socket has transitioned away from the LISTEN/CONNECT states before...

UBUNTU-CVE-2026-74542

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix folioqueue ENOMEM in writeback by adding a mempool Fix the handling of folioqueue allocation failure in writeback by adding a mempool and passing in gfpt flags to the rolling buffer functions that allocate memory, usin...

UBUNTU-CVE-2026-74461

In the Linux kernel, the following vulnerability has been resolved: i2c: imx: Cancel hrtimer before clearing slave pointer In i2cimxunregslave, the slave pointer is set to NULL after disabling interrupts. However, a pending interrupt might already have started the hrtimer i2cimxslavetimeout befor...

UBUNTU-CVE-2026-74489

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix tidtx use-after-free on BA session stop ieee80211stoptxbacb hands tidtx to kfreercu through ieee80211removetidtx, and then reads tidtx-ndp after dropping sta-lock: ieee80211removetidtxsta, tid; / kfreercutidtx...

UBUNTU-CVE-2026-74449

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix divide-by-zero in calculatemcachesetting on zero viewport If a plane reaches calculatemcachesetting with a zero-area viewport, calculatemcachesetting exits early with nummcaches == 0 and mvmpgwidth/height == ...

UBUNTU-CVE-2026-74454

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Supply the overflow slot size in BPOS, not the whole bin BO size vc4overflowmemwork points BPOA at a 512KB slot inside the 16MB binner BO, but writes the size of the whole BO to BPOS. On every binner out-of-memory event...

UBUNTU-CVE-2026-74471

In the Linux kernel, the following vulnerability has been resolved: tracing: Check return value of registerevent in tracemoduleaddevents tracemoduleaddevents ignores the return value of registerevent and unconditionally calls addeventtotracers for each event. If registerevent fails for example, i...

UBUNTU-CVE-2026-74504

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix division by zero in initializetimer A userspace-driven ALSA timer SNDUTIMER lets an unprivileged user set the backing sndtimer's hardware resolution to an arbitrary 64-bit value via SNDRVTIMERIOCTLCREATE...

UBUNTU-CVE-2026-74492

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: do not update comments from kernel-side hash adds mtyperesize copies comment pointers with memcpy, not the comment objects themselves. During the window after an entry has been copied but before the table swap a...

UBUNTU-CVE-2026-74445

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: reject DXBINDQUERY without a DX context vmwcmddxbindquery unconditionally dereferences swcontext-dxctxnode-ctx. Userspace can trigger a NULL pointer dereference from any render-node fd by submitting an execbuf with...

UBUNTU-CVE-2026-74479

In the Linux kernel, the following vulnerability has been resolved: net: pktgen: fix proc entry use-after-free pktgenchangename replaces pktdev-entry while holding t-iflock. pktgenremovedevice removes the same entry before remdevfromiflist takes that lock. This allows the following interleaving:...

UBUNTU-CVE-2026-74473

In the Linux kernel, the following vulnerability has been resolved: vxlan: use pskbnetworkmaypull in routeshortcircuit routeshortcircuit currently calls pskbmaypullskb, sizeofstruct iphdr or ipv6hdr, which checks if bytes are available starting from skb-data. However, in vxlanxmit, skb-data point...

UBUNTU-CVE-2026-74443

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: bound DMA command body size against suffix pointer vmwcmddma locates the DMA suffix at unsigned long &cmd-body + header-size - sizeofsuffix without checking that header-size is large enough to contain both cmd-body an...

UBUNTU-CVE-2026-74536

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix leaking sk after socket release isosockkill tests !sockflagsk, SOCKZAPPED || sk-sksocket || sockflagsk, SOCKDEAD for early return, but this is always true since sockorphansk sets SOCKDEAD, so the sk reference...

UBUNTU-CVE-2026-74523

In the Linux kernel, the following vulnerability has been resolved: qede: sync udptunnel ports outside qedelock in the recovery path A TX timeout on a qede NIC that has VXLAN/GENEVE tunnel ports configured wedges the rtnetlink control plane of the whole machine: NETDEV WATCHDOG: ens6f1 qede:...

UBUNTU-CVE-2026-74475

In the Linux kernel, the following vulnerability has been resolved: vxlan: use neighhasnapshot in routeshortcircuit The neighbour hardware address n-ha can be updated asynchronously by the neighbour subsystem, protected by n-halock seqlock. Reading n-ha without holding the seqlock loop can lead t...

UBUNTU-CVE-2026-74476

In the Linux kernel, the following vulnerability has been resolved: veth: convert fraglist skbs before running XDP A fraglist skb can reach veth with datalen set but nrfrags zero. vethconvertskbtoxdpbuff only converts skbs that are shared, locked, have frags, or do not have enough headroom. It...

UBUNTU-CVE-2026-74482

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: unlock immaprwsem before releasing after-split folios foliosplit keeps dereferencing the mapping after the split: shmemunchargemapping-host and remappage while the folios are still frozen/locked, and...

UBUNTU-CVE-2026-74458

In the Linux kernel, the following vulnerability has been resolved: can: kvaserusbleaf: kvaserusbleafwaitcmd: validate received command extents The wait and bulk receive paths walk variable-length commands from a USB buffer. A nonzero command shorter than CMDHEADERLEN can still be dispatched, and...

UBUNTU-CVE-2026-74481

In the Linux kernel, the following vulnerability has been resolved: mm/pagereporting: use systemfreezablewq to fix UAF during suspend During PM freeze e.g. S3 suspend or S4 hibernation, device drivers like virtioballoon reset their underlying virtio devices and delete their virtqueues via...

UBUNTU-CVE-2026-74496

In the Linux kernel, the following vulnerability has been resolved: fou: Fix use-after-free in foucreate foucreate publishes struct fou through skuserdata before adding the new FOU port to the per-netns list. If fouaddtoportlist fails, the error path frees fou while it is still reachable through...

UBUNTU-CVE-2026-74535

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: avoid deadlocks in isosocktimeout isosocktimeout takes locksock, so sync disabling the timer while holding that lock may deadlock. isosocktimeout may also run concurrently with isoconndel, which leads to UAF Task ...

UBUNTU-CVE-2026-74508

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: reject frames without a transaction header hidprecvctrlframe and hidprecvintrframe read skb-data0 before checking that the L2CAP SDU contains a transaction header. A connected HIDP peer can send an empty basic-mo...

UBUNTU-CVE-2026-74529

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hold conn in hciconnectpasync callback There is theoretical UAF if the conn is freed while the hcisync task is running. Hold refcount to avoid that...

UBUNTU-CVE-2026-74490

In the Linux kernel, the following vulnerability has been resolved: tipc: avoid use-after-free in poll trace queue dumps TIPC socket tracepoints dump queue state through tipcskdump. Most queue-dump callsites already serialize that walk under the socket lock or sk-sklock.slock, but tipcpoll calls...

UBUNTU-CVE-2026-74456

In the Linux kernel, the following vulnerability has been resolved: can: peakusb: peakusbstart: fix double free of transfer buffer on URB submit error In peakusbstart, each RX URB transfer buffer is allocated with kmalloc and the URB is flagged URBFREEBUFFER so that the final usbfreeurb also free...

UBUNTU-CVE-2026-74477

In the Linux kernel, the following vulnerability has been resolved: uprobes: Fix NULL pointer dereference in hprobeexpire Forking a task that has a pending uretprobe can oops the kernel with a NULL pointer dereference in the clone path: BUG: kernel NULL pointer dereference, address:...

UBUNTU-CVE-2026-74495

In the Linux kernel, the following vulnerability has been resolved: igbvf: Fix leak in TX DMA error cleanup If an error is encountered while mapping TX buffers, the driver should unmap any buffers already mapped for that skb. Because count is incremented before each frag mapping, it will always...

UBUNTU-CVE-2026-74510

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix UAF in pair command cancellation The pairing completion and authentication failure callbacks look up the pending MGMTOPPAIRDEVICE command by walking hdev-mgmtpending. The lookup returned a command that was...

UBUNTU-CVE-2026-74517

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Cancel delayed I/O APIC EOI handling before destroying vCPUs Cancel and flush the I/O APIC's delayed EOI handling work during the "pre VM destroy" phase, before vCPUs are destroyed, as processing the EOI broadcast will...

UBUNTU-CVE-2026-74526

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix potential deadlock in mpi3mrfaultueventemit mpi3mrfaultueventemit runs from the fault watchdog and reset paths where host I/O may already be blocked. GFPKERNEL allocations here, both the local kzallocobj and the...

UBUNTU-CVE-2026-74512

In the Linux kernel, the following vulnerability has been resolved: audit: fix potential use-after-free in auditdelrule auditdelrule destroys e-rule.exe via auditremovemarkrule before unlinking the rule from RCU-visible filter lists and waiting for a grace period. Concurrent readers in auditfilte...

UBUNTU-CVE-2026-74441

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Fix race condition and ordering in port unregistration A synchronization issue exists during port unregistration where pending partner work items can race against workqueue destruction, leading to use-after-free...

UBUNTU-CVE-2026-74544

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: validate offshift to prevent shift-out-of-bounds u32change copies the user-provided tcu32sel.offshift unsigned char, 0-255 into the kernel knode object without bounds validation. When a packet later hits...