UBUNTU-CVE-2026-64326

In the Linux kernel, the following vulnerability has been resolved: block: skip syncblockdev on surprise removal in bdevmarkdead bdevmarkdead's @surprise == true means the device is already gone. The filesystem callback fsbdevmarkdead honours this and skips syncfilesystem, but the bare block devi...

UBUNTU-CVE-2026-64434

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix UAF in channel timeout by holding conn ref l2capchantimeout runs asynchronously and accesses chan-conn. If the connection is torn down while the timer is running or pending, chan-conn can be freed, leading t...

UBUNTU-CVE-2026-64431

In the Linux kernel, the following vulnerability has been resolved: ntfs: avoid calling postwritemstfixup for invalid indexblock ntfsicxibsyncwrite calls postwritemstfixup when ntfsibwrite returns an error, intending to restore the buffer after a failed write. However, ntfsibwrite returns an erro...

UBUNTU-CVE-2026-64501

In the Linux kernel, the following vulnerability has been resolved: iio: adc: adsigmadelta: fix CS held asserted and state leaks In adsigmadeltasingleconversion, setmodeADSDMODEIDLE and disableone were called from the out: block while keepcsasserted was still true. This caused any SPI transfer...

UBUNTU-CVE-2026-64420

In the Linux kernel, the following vulnerability has been resolved: mfd: crosec: Delay devsetdrvdata until probe success If ecdeviceprobe fails, crosecclassrelease releases memory for the crosecdev structure. However, because the drvdata was already set, sub-drivers like crosectypec can still...

UBUNTU-CVE-2026-64503

In the Linux kernel, the following vulnerability has been resolved: iio: accel: kxsd9: fix runtime PM imbalance on writeraw error kxsd9writeraw takes a runtime PM reference with pmruntimegetsync but returns -EINVAL directly when a scale with a non-zero integer part is requested, skipping the...

UBUNTU-CVE-2026-64449

In the Linux kernel, the following vulnerability has been resolved: staging: vmeuser: bound slave read/write to the kernbuf size The SLAVE-path helpers buffertouser and bufferfromuser copy 'count' bytes into/out of the fixed-size kernbuf sizebuf == PCIBUFSIZE == 0x20000, 128 KiB using ppos as the...

UBUNTU-CVE-2026-64475

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Release the VGA arbiter client on registerdevice failure The re-order in the Fixes commit below displaced vfiopcivgainit as the last failure point of what is now vfiopcicoreregisterdevice without introducing an unwind f...

UBUNTU-CVE-2026-64274

In the Linux kernel, the following vulnerability has been resolved: Input: goodix - clamp the device-reported contact count goodixtsreadinputreport copies the number of touch points reported by the device into an on-stack buffer u8 pointdata2 + GOODIXMAXCONTACTSIZE GOODIXMAXCONTACTS; which is siz...

UBUNTU-CVE-2026-64270

In the Linux kernel, the following vulnerability has been resolved: Input: mms114 - reject an oversized device packet size mms114interrupt reads a packet of touch data from the device into a fixed-size on-stack buffer struct mms114touch touchMMS114MAXTOUCH; which holds MMS114MAXTOUCH 10 events of...

UBUNTU-CVE-2026-64289

In the Linux kernel, the following vulnerability has been resolved: iommufd: Set upper bounds on cache invalidation entrynum and entrylen iommufdhwptinvalidate takes a user-controlled entrynum and entrylen, each bounded only by U32MAX. An entrylen beyond the kernel's struct size makes the copy...

UBUNTU-CVE-2026-64413

In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: zero chainstack array sashiko reports: looking at ebtables table translation, could a sparse cpupossiblemask lead to an uninitialized pointer free? If cpupossiblemask is sparse for example, CPU 0 and CPU 2 ar...

UBUNTU-CVE-2026-64474

In the Linux kernel, the following vulnerability has been resolved: vfio: prevent infinite loop in vfiomiggetnextstate on blocked arc vfiomiggetnextstate walks vfiofromfsmtable one step at a time, looping to skip optional states the device does not support until nextfsm is supported. A blocked...

UBUNTU-CVE-2026-64471

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: fix use-after-free on registration failure Make sure to release the sibling interfaces in case controller registration fails to avoid use-after-free and double-free when they are eventually disconnected. This...

UBUNTU-CVE-2026-64399

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add permission checks for FSCTLDUPLICATEEXTENTSTOFILE The FSCTLDUPLICATEEXTENTSTOFILE arm of smb2ioctl overwrites the destination file's data via vfsclonefilerange with neither the share-level KSMBDTREECONNFLAGWRITABLE che...

UBUNTU-CVE-2026-64349

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: fix dwc3readl and dwc3writel calls in dwc3ulpisetup The dwc3ulpisetup calls the register read and write calls with dwc3-regs when both these calls take the dwc3 structure directly. Chnage these two calls to fix the...

UBUNTU-CVE-2026-64282

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't leak PFN when kvmtranslatevncr races MMU notifier In the case that kvmtranslatevncr races with an MMU notifier the early return does not release a reference on the faulted in PFN. Add the necessary call to...

UBUNTU-CVE-2026-64377

In the Linux kernel, the following vulnerability has been resolved: cpufreq: qcom-cpufreq-hw: Fix possible double free qcomcpufreq.data is allocated with devmkzalloc in probe as an array of per-domain data. qcomcpufreqhwcpuinit stores a pointer to one element of this array in policy-driverdata...

UBUNTU-CVE-2026-64256

In the Linux kernel, the following vulnerability has been resolved: xfs: don't wrap around quota ids in dqiterate LOLLM noticed that qid is an unsigned 32-bit variable. If it happens to be set to XFSDQIDMAX due to a filesystem that actually has a dquot for IDMAX, then this addition will truncate ...

UBUNTU-CVE-2026-64308

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Do not initialize SNP for ioctlSNPVLEKLOAD Sashiko notes: if SEV initialization fails and KVM is actively running normal VMs, could a userspace process trigger this code path via /dev/sev ioctls e.g., SEVPDHGEN and...