UBUNTU-CVE-2026-74433

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix UAF in rxgkissuechallenge Fix rxgkissuechallenge to free the page containing the challenge content after invoking the tracepoint as the whdr passed to the tracepoint points into the page just freed...

UBUNTU-CVE-2026-74369

In the Linux kernel, the following vulnerability has been resolved: liveupdate: fix u-a-f in luofileunpreservefiles and luofilefinish In luofileunpreservefiles and luofilefinish, reorder moduleput and xaerase to ensure the file handler module remains pinned while its operations are being accessed...

UBUNTU-CVE-2026-74361

In the Linux kernel, the following vulnerability has been resolved: nvme: fix FDP fdpcidx bounds check The fdpcidx bounds check sets n = NUMFDPC + 1 but used instead of =, incorrectly accepting fdpidx when it equals n i.e. NUMFDPC + 1...

UBUNTU-CVE-2026-72426

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve pointer spill metadata during half-slot cleanup cleanfuncstate cleans dead stack slots in 4-byte halves. When the high half of a STACKSPILL slot is dead and the low half remains live, cleanup converts the live low...

UBUNTU-CVE-2026-74376

In the Linux kernel, the following vulnerability has been resolved: md/raid10: reset readslot when reusing r10bio for discard putallbios always drops devsi.bio, but it only drops devsi.replbio when r10bio-readslot 0. If discard reuses an r10bio that was previously used for a read, readslot can...

UBUNTU-CVE-2026-72365

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix writethrough to use collection offload Fix writethrough write to set NETFSRREQOFFLOADCOLLECTION on the request so that collection is processed asynchronously rather than only right at the end - and also so that...

UBUNTU-CVE-2026-72397

In the Linux kernel, the following vulnerability has been resolved: hwmon: pmbus/core honor vrmversion in pmbusdata2regvid pmbusdata2regvid hardcoded the VR11 encoding regardless of the vrmversion configured by the driver, while pmbusreg2datavid already switched on it. Any driver that selects a...

UBUNTU-CVE-2026-72452

In the Linux kernel, the following vulnerability has been resolved: drm/i915: clear CRTC color blob pointers after dropping refs intelcrtcputcolorblobs drops the CRTC color blob references, but leaves the corresponding pointers unchanged. This can matter in intelcrtcprepareclearedstate, which fre...

UBUNTU-CVE-2026-72431

In the Linux kernel, the following vulnerability has been resolved: alloctag: fix use-after-free in /proc/allocinfo after module unload allocinfostart only reinitializes the codetag iterator at position 0. For subsequent reads position 0, it reuses cached iterator state from the previous batch...

UBUNTU-CVE-2026-74340

In the Linux kernel, the following vulnerability has been resolved: wifi: wcn36xx: fix OOB read from firmware count in PRINTREGINFO indication The firmware-controlled rsp-count field is used as the loop bound for indexing into the flexible rsp-regs array without validation against the message...

UBUNTU-CVE-2026-74380

In the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Fix iommumapsgtable return value check Commit "iommu: return full error code from iommumapsgatomic" changed iommumapsgtable to return an ssizet and negative values in error cases, rather than a sizet and a zero. pinj...

UBUNTU-CVE-2026-74410

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer In rtwpcirxnapi, newlen is computed as the sum of pktlen 14-bit descriptor field, max 16383 and pktoffset drvinfosz + shift, both firmware-controlled. The...

UBUNTU-CVE-2026-72441

In the Linux kernel, the following vulnerability has been resolved: ieee802154: fix kernel-infoleak in dgramrecvmsg KMSAN reported a kernel-infoleak in moveaddrtouser: BUG: KMSAN: kernel-infoleak in instrumentcopytouser include/linux/instrumented.h:131 inline BUG: KMSAN: kernel-infoleak in...

UBUNTU-CVE-2026-72324

In the Linux kernel, the following vulnerability has been resolved: gpio: mvebu: free generic chips on unbind irqallocdomaingenericchips allocates generic chip data that must be freed via irqdomainremovegenericchips. The devres action mvebugpioremoveirqdomain only called irqdomainremove, which on...

UBUNTU-CVE-2026-72327

In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Reject invalid indirect BO handle in indirect CSD setup v3dgetcpuindirectcsdparams looks up the indirect buffer object from a userspace-supplied handle but never checks the result. A bogus or stale handle makes...

UBUNTU-CVE-2026-74278

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix kernel heap address leak in bounceerrorevent The comment above bounceerrorevent documents that user clients should receive SNDRVSEQEVENTBOUNCE with the original event embedded as variable-length data, while kernel...

UBUNTU-CVE-2026-72290

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Fix GISC refcount leak on AIF enable failure kvms390giscregister registers the guest ISC before pinning the guest interrupt forwarding pages and allocating the AISB bit. If any of the later setup steps fails, the...

UBUNTU-CVE-2026-74309

In the Linux kernel, the following vulnerability has been resolved: vdpa/octeonep: fix IRQ-to-ring mapping in interrupt handler Look up the IRQ index in octhw-irqs instead of assuming irq - irqs0. This supports non-contiguous IRQ numbers and avoids incorrect ring indexing when irqs0 is not the ba...

UBUNTU-CVE-2026-74386

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: fix page fragment cache leak in error path In nvmettcpallocqueue, when a connection is closed during the allocation process e.g., nvmettcpsetqueuesock returns -ENOTCONN, the error handling jumps to outdestroysq and the...

UBUNTU-CVE-2026-72355

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix barriering when walking subrequest list Fix the barriering used when walking the subrequest list in retry as there's a possibility of seeing a subreq that's just been added by the application thread...

UBUNTU-CVE-2026-74409

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: add bounds check on firmware macid in link lookup The macid field in RX descriptors is 8 bits wide 0-255, but assoclinkonmacid has only RTW89MAXMACIDNUM 128 entries. While the driver currently assigns macid values...

UBUNTU-CVE-2026-74362

In the Linux kernel, the following vulnerability has been resolved: ext2: fix ignored return value of genericwritesync Fix ext2diowriteiter to propagate the error returned by genericwritesync instead of silently discarding it, which could cause write2 to return success to userspace on OSYNC/ODSYN...

UBUNTU-CVE-2026-74371

In the Linux kernel, the following vulnerability has been resolved: bpf: fix BPFPROGQUERY OOB write and cgroup backward compat BPFPROGQUERY writes back the 'query.revision' field unconditionally to userspace. If userspace passes a smaller 'bpfattr' structure e.g. 40 bytes, which was the layout...

UBUNTU-CVE-2026-72375

In the Linux kernel, the following vulnerability has been resolved: afs: Fix reinitialisation of the inode, in particular -lockwork It seems that initalising afsvnode::lockwork a single time in the slab's init function isn't sufficient for workstructs. This results in the DEBUGOBJECTS debugging...

UBUNTU-CVE-2026-72382

In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject undersized DACLs before parsing ACEs parsedacl limits the attacker-controlled ACE count by comparing it with the number of minimal ACEs that fit in the DACL size. The DACL size field is 16 bits, but the expression...

UBUNTU-CVE-2026-72316

In the Linux kernel, the following vulnerability has been resolved: dm era: fix NULL pointer dereference in metadataopen metadataopen returns NULL when kzallocobj fails, but the caller eractr only checks ISERRmd. Since ISERRNULL returns false, the NULL pointer is treated as a valid result and lat...

UBUNTU-CVE-2026-72479

In the Linux kernel, the following vulnerability has been resolved: iio: accel: mma8452: handle I2C read errors in mma8452read Currently, If i2csmbusreadi2cblockdata fails but mma8452setruntimepmstate succeeds, mma8452read returns 0. As a result, the caller mma8452readraw assumes the read was...

UBUNTU-CVE-2026-72420

In the Linux kernel, the following vulnerability has been resolved: md/raid5: avoid R5Overlap races while breaking stripe batches KCSAN report a race in breakstripebatchlist vs. raid5makerequest on sh-devi.flags plain word write vs. atomic bit op.. and .. one possible scenario is: CPU1 CPU2...

UBUNTU-CVE-2026-72451

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...

UBUNTU-CVE-2026-72319

In the Linux kernel, the following vulnerability has been resolved: ipvs: ensure inner headers in ICMP errors are in headroom Sashiko points out that after stripping the outer headers with pskbpull we should ensure the inner IP headers in ICMP errors from tunnels are present in the skb headroom f...

UBUNTU-CVE-2026-72493

In the Linux kernel, the following vulnerability has been resolved: net: serialize netifrunning check in enqueuetobacklog Syzbot reported a KASAN slab-use-after-free in fibruleslookup. The root cause is a race condition where packets can escape the backlog flushing during device unregistration...

UBUNTU-CVE-2026-72303

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc4-control: Validate notification payload size Validate MODULENOTIFICATION payload length before reading bytes/channel data in control update handling...

UBUNTU-CVE-2026-72427

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix effective prog array index with BPFFPREORDER replaceeffectiveprog and purgeeffectiveprogs located the slot in the effective array by walking the program hlist and counting entries linearly. That count does not match the...

UBUNTU-CVE-2026-74281

In the Linux kernel, the following vulnerability has been resolved: tipc: reject inverted service ranges from peer bindings tipcupdatenametbl inserts a binding advertised by a peer node using the lower and upper service-range bounds taken directly from the wire, without checking that lower upper ...

UBUNTU-CVE-2026-72313

In the Linux kernel, the following vulnerability has been resolved: drm/fb-helper: Only consider active CRTCs for vblank sync Only synchronize fbdev output to the vblank of an active CRTC. Go over the list of CRTCs and pick the first that matches. Fixes warnings as the one shown below 77.201354...

UBUNTU-CVE-2026-74337

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NMI/tracepoint re-entry deadlock on lru locks NMI and tracepoint BPF programs can re-enter the per-CPU or global LRU lock that bpflrupopfree/pushfree already hold on the same CPU, AA-deadlocking. Lockdep reports...

UBUNTU-CVE-2026-74402

In the Linux kernel, the following vulnerability has been resolved: crypto: atmel-sha204a - fix blocking and non-blocking rng logic The blocking and non-blocking paths were failing to provide valid entropy due to improper buffer management. Reading the buffer starting from byte 1, only fetch the ...

UBUNTU-CVE-2026-72394

In the Linux kernel, the following vulnerability has been resolved: hwmon: aspeed-g6-pwm-tach Guard fan RPM calculation against divide-by-zero Sashiko reports: In the aspeed-g6-pwm-tacho driver, the aspeedtachvaltorpm function calculates the fan RPM using the tachometer value. However, it does no...

UBUNTU-CVE-2026-74300

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci: validate codec capability element length Read Local Codec Capabilities returns a sequence of capability elements. Each element starts with a one-byte length followed by that many payload bytes...

UBUNTU-CVE-2026-72423

In the Linux kernel, the following vulnerability has been resolved: bpf: Guard conntrack opts error writes The conntrack lookup and allocation kfuncs take an opts pointer together with an optssz argument. The verifier checks only the memory range described by optssz, but the wrappers...

UBUNTU-CVE-2026-72385

In the Linux kernel, the following vulnerability has been resolved: tracing/fprobe: Fix NULL pointer dereference in fprobefgraphentry fprobefgraphentry sizes a shadow-stack reservation in one walk of the per-ip fprobe list and fills it in a second walk, both under rcureadlock only. A fprobe...

UBUNTU-CVE-2026-74312

In the Linux kernel, the following vulnerability has been resolved: vhost/vdpa: validate virtqueue index in mmap and fault paths vhostvdpammap and vhostvdpafault use vma-vmpgoff as a virtqueue index for getvqnotification, but they do not validate that the index is smaller than v-nvqs. The ioctl...

UBUNTU-CVE-2026-74348

In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: require a ref for lockingstate debugfs open debuglockresopen copies inode-iprivate into struct debuglockres and debuglockresrelease later drops that pointer with dlmput. That only works if open successfully pins the...

UBUNTU-CVE-2026-72368

In the Linux kernel, the following vulnerability has been resolved: cachefiles: Fix double unlock in nomemdalloc error path When startcreating fails and returns -ENOMEM, it has already released the parent directory lock in startdirop: static struct dentry startdirop... ... inodelocknesteddir,...

UBUNTU-CVE-2026-72486

In the Linux kernel, the following vulnerability has been resolved: mailbox: mtk-adsp: fix UAF during device teardown When the SOF audio driver fails to initialize e.g. firmware boot timeout, its devres unwind frees the sndsofdev object that the mailbox client mtk-adsp-ipc reaches via...

UBUNTU-CVE-2026-74289

In the Linux kernel, the following vulnerability has been resolved: ipv4: fib: Don't dump dying fibinfo in fibleafnotify. syzbot reported use-after-free in nsimfib4prepareevent. 0 The problem is that the following functions call fibinfohold / refcountinc while dumping fibinfo under RCU, which is...

UBUNTU-CVE-2026-72380

In the Linux kernel, the following vulnerability has been resolved: xen/pvcalls: bound backend response reqid before indexing rsp pvcallsfronteventhandler takes reqid directly from the backend-supplied ring response and uses it to index the fixed-size bedata-rsp array for a memcpy and a store, wi...

UBUNTU-CVE-2026-74277

In the Linux kernel, the following vulnerability has been resolved: iommu/dma-iommu: Fix wrong scatterlist length assignment in P2PDMA path In iommudmamapsg, when handling PCI P2PDMA cases, the DMA length of the current scatterlist segment s is incorrectly assigned from the head entry sg-length...

UBUNTU-CVE-2026-74291

In the Linux kernel, the following vulnerability has been resolved: ASoC: topology: Check PCM and DAI name strings before use Topology objects store several PCM and DAI names in fixed-size UAPI arrays. Other topology parser paths validate these fields with bounded strnlen checks before using them...

UBUNTU-CVE-2026-72349

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtrateest: fix u64 truncation in xtrateestmt On links faster than 34 Gbps, where byte rate may exceed 2^32-1 4.3 GBps, the comparison result becomes incorrect because the truncated value no longer reflects the actual...