UBUNTU-CVE-2026-90422

In the Linux kernel, the following vulnerability has been resolved: clk: mediatek: pllfh: Fix IO remapping leak in registerpllfhs error path When mtkclkregisterpllfhs function fails to register a PLL, it unregisters all PLLs and cleans up itself in its error path before returning, so the function...

UBUNTU-CVE-2026-90115

In the Linux kernel, the following vulnerability has been resolved: xsk: fix NULL pointer dereference in xskrcv In the xskrcv multi-buffer path, xskbuffalloc is called in a loop without checking its return value. xskbuffcanalloc only counts fill queue entries without validating their addresses, s...

UBUNTU-CVE-2026-90135

In the Linux kernel, the following vulnerability has been resolved: net: add missing reftrackerdirexit to allocnetdevmqs sashiko is reporting that trying to read /sys/kernel/debug/reftracker/ causes use-afer-free crash when either allocpercpu or devaddrinit in allocnetdevmqs failed, for commit...

UBUNTU-CVE-2026-90150

In the Linux kernel, the following vulnerability has been resolved: pnfs/blocklayout: Fix device leaks on parse failure blparseconcat and blparsestripe allocate a child device array and then parse each child in turn. If parsing a child fails, the failed child is not counted in nrchildren and the...

UBUNTU-CVE-2026-92478

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Validate connected lane counts The connected lane count is used by TX equalization code to index arrays sized by UFSMAXLANES. Reject zero and out-of-range RX or TX lane counts before they can be propagated...

UBUNTU-CVE-2026-90390

In the Linux kernel, the following vulnerability has been resolved: md/bitmap: resume array on backlogstore error path backlogstore suspends the array before checking whether a write-mostly device exists. If no such device exists, the error path only unlocks reconfigmutex and leaves the array...

UBUNTU-CVE-2026-90165

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix invalid pointer dereference in ksmbdstopdurablescavenger See the procedure below: ksmbdlaunchksmbddurablescavenger durablescavengerrunning = true serverconf.dhtask = kthreadrun // fail, dhtask is an ERRPTR...

UBUNTU-CVE-2026-90136

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/hsmp: Reject negative power cap writes in hwmon hsmphwmonwrite takes the user-supplied hwmon value as a signed long and assigns "val / MICROWATTPERMILLIWATT" to msg.args0, which is a u32. MICROWATTPERMILLIWATT is...

UBUNTU-CVE-2026-90236

In the Linux kernel, the following vulnerability has been resolved: NFSD: Release the export reference when reaping open stateids nfs4putstid releases the svcexport tracked in nfs4stid.scexport, but freeolstateidreaplist frees open and lock stateids by calling -scfree directly, bypassing that pat...

UBUNTU-CVE-2026-92480

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Validate string descriptors The string descriptor length includes a two-byte header while the UTF-16 payload starts after it. utf16stoutf8s expects a count of UTF-16 code units, not bytes. Passing the payload byt...

UBUNTU-CVE-2026-90317

In the Linux kernel, the following vulnerability has been resolved: bpf: Invalidate RCU pointers after final spin unlock In a sleepable BPF program, a spin lock can provide the only RCU protection for a kptr. The final bpfspinunlock ends that protection, but the verifier leaves the pointer valid...

UBUNTU-CVE-2026-90346

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: clean up color-change beacon data on errors nl80211colorchange calls nl80211parsebeacon for the beaconnext template, which can allocate params.beaconnext.mbssidies and .rnries. A parsing failure returned directly...

UBUNTU-CVE-2026-90357

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement The flow is added to dev-twtlist before sending the agreement to the firmware, but the error path leaves it linked while flowidmask is never set. The flow slot...

UBUNTU-CVE-2026-90157

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject negative optlen in cgroup getsockopt hook A cgroup getsockopt BPF program can shrink ctx-optlen after the kernel getsockopt handler has run. The kernel-buffer variant, used by TCPZEROCOPYRECEIVE, only rejects values...

UBUNTU-CVE-2026-90111

In the Linux kernel, the following vulnerability has been resolved: ip6mr: do not clone dst in ip6mrcachereport IPv6 input attaches a non-refcounted NOREF dst to skbs under RCU. When an ingress multicast packet misses MFC lookup, ip6mrcacheunresolved places the skb onto the unresolved queue,...

UBUNTU-CVE-2026-90162

In the Linux kernel, the following vulnerability has been resolved: ksmbd: defer publishing granted locks to prevent UAF/double-free race In smb2lock, mid-batch granted locks are published to connection-wide conn-locklist and file-wide fp-locklist lists immediately upon vfslockfile success, while...

UBUNTU-CVE-2026-90274

In the Linux kernel, the following vulnerability has been resolved: coresight: etm4x: fix underflow for usage of nrseqstate - 1 According to IHI006H Embedded Trace Macrocell Architecture Specification0, TRCSEQEVR is implemented only when TRCIDR5.NUMSEQSTATE is 0b100, in which case n ranges from 0...

UBUNTU-CVE-2026-90152

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix session leak in ksmbdsessionregister See the procedure below: smb2sesssetup ksmbdsmb2sessioncreate sessioncreate atomicset&sess-refcnt, 2 hashaddsessionstable, &sess-hlist, sess-id ksmbdsessionregister...

UBUNTU-CVE-2026-90134

In the Linux kernel, the following vulnerability has been resolved: ntfs: fix kmaplocalpage usage in compress Several compressed I/O paths discard the address returned by kmaplocalpage and later access or unmap the page using pageaddress. This is invalid for highmem pages, and local mappings must...

UBUNTU-CVE-2026-90178

In the Linux kernel, the following vulnerability has been resolved: hwmon: coretemp Fix coredata leak on CPUs without PTS pdata-coredata is allocated in inittempdata when the first core tempdata of a package is created, but it is only released from destroytempdata, and only in the branch that...

UBUNTU-CVE-2026-90335

In the Linux kernel, the following vulnerability has been resolved: tty: skip cdevdel when no cdev is registered TTY device registration can fail before a cdev is allocated. Serial core keeps the port so setserial can still use it, and later removal passes the NULL cdev slot to cdevdel, causing a...

UBUNTU-CVE-2026-90304

In the Linux kernel, the following vulnerability has been resolved: ARM: 9484/1: enable interrupts when unhandled user faults are triggered PREEMPTRT requires interrupts to be enabled when sending signals. When doDataAbort/doPrefetchAbort triggers unhandled user faults, that is inf-fn return a...

UBUNTU-CVE-2026-90339

In the Linux kernel, the following vulnerability has been resolved: powerpc/syscall: Fix syscall skip handling for seccomp and ptrace After enabling GENERICENTRY on PowerPC, syscallenterfromusermode returns -1 as a sentinel to signal that seccomp or ptrace has intercepted the syscall and already...

UBUNTU-CVE-2026-92516

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix offset warn check for bpfresspinlock Sashiko pointed out correctly that the case statement for BPFRESSPINLOCK incorrectly checks offset for BPFSPINLOCK. Fix it by checking resspinlockoff instead...

UBUNTU-CVE-2026-90306

In the Linux kernel, the following vulnerability has been resolved: ARM: 9481/2: breakpoint: CFI breakpoints only on demand This removes the stub hwbreakpointcfihandler from ARM, making it not steal breakpoint type 0x03 ARMENTRYCFIBREAKPOINT unless CFI is actively used in the kernel. When not...

UBUNTU-CVE-2026-92486

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix CFI mismatch in task work callback BPF subprograms use the bpfcallbackt ABI, but task work invokes the callback through a three-argument function pointer. This trips kCFI. Store and invoke the callback as bpfcallbackt...

UBUNTU-CVE-2026-90332

In the Linux kernel, the following vulnerability has been resolved: PCI: dwc: ep: Flush cached MSI write before unmapping the iATU The MSI-X path already flushes any posted MSI-X write before tearing down its iATU mapping. That was added by commit c22533c66cca "PCI: dwc: ep: Flush MSI-X write...

UBUNTU-CVE-2026-90098

In the Linux kernel, the following vulnerability has been resolved: net: sparx5: fix sleep in atomic context in MAC table access sparx5setrxmode runs with netifaddrlockbh held and iterates dev-mc via devmcsync, which per address calls sparx5mcsync / sparx5mcunsync - sparx5mactlearn /...

UBUNTU-CVE-2026-90159

In the Linux kernel, the following vulnerability has been resolved: bpf: Disallow bpfg,setsockopt in cgroup UNIX getname hooks bpfsetsockopt and bpfgetsockopt call sockownedbyme for full sockets, so these helpers expect the socket lock to be held. BPFCGROUPUNIXGETPEERNAME and...

UBUNTU-CVE-2026-90404

In the Linux kernel, the following vulnerability has been resolved: platform/chrome: crosecdebugfs: Unregister panic notifier crosecdebugfsprobe registers notifierpanic with the EC panic notifier chain. The remove path tears down debugfs and the console log, but leaves the notifier registered. A...

UBUNTU-CVE-2026-90384

In the Linux kernel, the following vulnerability has been resolved: iomap: release the folio batch on iomap callback failures A sashiko review of an unrelated patch points out that the folio batch mechanism used for iomap zero range fails to release the batch in a couple error scenarios. If eithe...

UBUNTU-CVE-2026-90116

In the Linux kernel, the following vulnerability has been resolved: ALSA: mtpav: shut down output timer before card teardown sndmtpavoutputtimer rearms chip-timer while holding chip-spinlock and accesses the card-private mtpav state. sndmtpavfree currently takes the same lock and calls timerdelet...

UBUNTU-CVE-2026-90392

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential UAF when reading bpf link info In bpflinkshowfdinfo and bpflinkgetinfobyfd, link-prog is accessed without holding any locks. If the prog is concurrently replaced via bpflinkupdate, the old prog can be freed,...

UBUNTU-CVE-2026-92518

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix kernel stack corruption in tailcall with CFI When CONFIGCFICLANG is enabled, prog-bpffunc already skips the kcfi instruction during setup. Including it again in the tailcall jump offset causes it to jump over an...

UBUNTU-CVE-2026-90298

In the Linux kernel, the following vulnerability has been resolved: drm/sun4i: tcon: Drop TCON TOP device reference offinddevicebynode takes a device reference. Drop it after mux configuration succeeds...

UBUNTU-CVE-2026-90348

In the Linux kernel, the following vulnerability has been resolved: wifi: ath10k: snoc: use memcpyfromio for MSA ramdump On WCN3990/SNOC the MSA region is mapped with devmmemremapMEMREMAPWT. On arm64 such a mapping is not Normal-cacheable, so unaligned accesses to it are not permitted...

UBUNTU-CVE-2026-90353

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: fix ext PHY use-after-free on register error path After mt7915registerextphy succeeded, a failure of the main PHY mt7915initdebugfs or mt7915coredumpregister unwound through freephy2, which called...

UBUNTU-CVE-2026-90354

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: fix double hif2 init on the non-WED path mt7915pciinithif2 was called unconditionally and again inside the WED-inactive branch. The helper increments the global hifidx, writes the PCIe RECOGID register and tak...

UBUNTU-CVE-2026-90391

In the Linux kernel, the following vulnerability has been resolved: lib/testhmm: fail dmirrorfault when the mirrored mm is gone dmirrorfault is called from the dmirrorread and dmirrorwrite retry loops after dmirrordoread or dmirrordowrite finds a missing device page table entry. If the mirrored m...

UBUNTU-CVE-2026-93056

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fuac1legacy: remove broken string configfs attributes The UAC1STRATTRIBUTE macro defines configfs show/store handlers for the fnplay, fncap, and fncntl string options. The store function contains an inverted null che...

UBUNTU-CVE-2026-90143

In the Linux kernel, the following vulnerability has been resolved: net: kcm: Hold RCU read lock while running BPF parser kcmparsefuncstrparser calls bpfprogrunpinoncpu which prevents CPU migration, but does not establish an RCU read-side critical section. Consequently, BPF map operations can...

UBUNTU-CVE-2026-90302

In the Linux kernel, the following vulnerability has been resolved: ocfs2: synchronize heartbeat callbacks with o2net teardown Patch series "ocfs2: harden heartbeat teardown races". This series fixes two OCFS2 heartbeat/o2net teardown races found by KASAN. This patch of 2: Heartbeat callbacks sta...

UBUNTU-CVE-2026-90245

In the Linux kernel, the following vulnerability has been resolved: fbdev: kyro: Validate overlay viewport coordinates The overlay viewport end coordinates are computed from the viewport origin and dimensions using 32-bit unsigned arithmetic. Large input values can cause these calculations to wra...

UBUNTU-CVE-2026-90286

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx6: Use PFP on the compute queues too On GFX6, the compute rings use the same CP path as the graphics ring. The only difference is that they don't support draw commands. As opposed to GFX7 and newer which have a...

UBUNTU-CVE-2026-90107

In the Linux kernel, the following vulnerability has been resolved: net/smc: free pending qentry in smcllcflowstop before memset smcllcflowstop resets a flow struct with a blind memset: spinlockbh&lgr-llcflowlock; memsetflow, 0, sizeofflow; flow-type = SMCLLCFLOWNONE; spinunlockbh&lgr-llcflowlock...

UBUNTU-CVE-2026-90128

In the Linux kernel, the following vulnerability has been resolved: vdpa/mlx5: fix wrong list iterated in adddirectchain error path In adddirectchain, newly allocated direct MR entries are added to the local list 'tmp', which is spliced into mr-head only on success. On the error path, the cleanup...

UBUNTU-CVE-2026-90196

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: validate topology volume range before allocation SOF treats the topology mixer min and max values as non-negative indices into its volume table. It stores them in signed fields, allocates max + 1 entries through an int...

UBUNTU-CVE-2026-90222

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: hold a reference to the request skb during sendframe pn533sendasync publishes the command and then calls dev-phyops-sendframe. Once dev-cmd is set, an incoming frame can be matched to this command: the I2C threaded IR...

UBUNTU-CVE-2026-90248

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: fix teardown of an adopted proto on insert-race loss In tcnewtfilter the create branch sets tpcreated = 1 before calling tcfchaintpinsertunique. When the caller loses the race another request inserted a proto a...

UBUNTU-CVE-2026-90290

In the Linux kernel, the following vulnerability has been resolved: arm64: hibernate: Restore DAIF state on error Sashiko AI has reported that if swsuspmtesavetags for some reason fails we return from swsusparchsuspend with DAIF being masked - that is not what we'd expect. Restore the saved DAIF...