UBUNTU-CVE-2026-89989

In the Linux kernel, the following vulnerability has been resolved: ima: Check for ERRPTR from dentrypath in validatehashalgo dentrypath returns ERRPTR-ENAMETOOLONG when the path exceeds the buffer. validatehashalgo passes the result straight to integrityauditmsg without checking. ERRPTR is not...

UBUNTU-CVE-2026-90003

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent rcuwait use-after-free during requeue PI On PREEMPTRT, FUTEXCMPREQUEUEPI can trigger a KASAN report slab-out-of-bounds in futexrequeuepicomplete invocation of rcuwaitwakeup. The futexq used by futexwaitrequeuepi is...

UBUNTU-CVE-2026-89990

In the Linux kernel, the following vulnerability has been resolved: ceph: lock mutex in cephmdscheckaccess MDS session OPEN handling replaces mdsc-scapauths under mdsc-mutex, freeing the previous array and its strings. cephmdscheckaccess traverses this array without holding the mutex. A concurren...

UBUNTU-CVE-2026-89956

In the Linux kernel, the following vulnerability has been resolved: s390/vfio-ap: Fix missing lock required to access list of apmatrixmdev objects In order to traverse or add/remove apmatrixmdev objects in the matrixdev-mdevlist, the matrixdev-guestslock mutex must be held. There are two function...

UBUNTU-CVE-2026-89934

In the Linux kernel, the following vulnerability has been resolved: iio: light: ltrf216a: fix runtime PM reference leak in error path ltrf216agetlux acquires a runtime PM reference by calling ltrf216asetpowerstatedata, true. However, if ltrf216areaddata fails, the function returns immediately...

UBUNTU-CVE-2026-90027

In the Linux kernel, the following vulnerability has been resolved: usb: typec: qcom-pmic-typec: disable ccdebouncedwork on stop ccdebouncedwork is queued from the setcc and starttoggling callbacks, which run from TCPM's kthread worker. portstop returns before tcpmunregisterport destroys that...

UBUNTU-CVE-2026-90036

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during blocked-lock reaping A bare lock owner -- its only remaining reference a blocked lock on nn-blockedlockslru -- holds a raw pointer to its nfs4client but no reference keeping the client...

UBUNTU-CVE-2026-90037

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during closelru reaping An nfs4openowner left on nn-closelru after its final CLOSE keeps its last closed stateid in oolastclosedstid, holding only a raw pointer to its nfs4client. The laundroma...

UBUNTU-CVE-2026-90033

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fix OOB write in sndusbmidius122loutput The sndusbmidius122loutput picks a count of 2 on anything slower than high speed and never relates it to ep-maxtransfer. The URB buffer holds exactly maxtransfer bytes, so ...

UBUNTU-CVE-2026-90009

In the Linux kernel, the following vulnerability has been resolved: scsi: bsg: Fix TOCTOU in iouring passthrough command setup scsibsguringcmd reads bsguringcmd from the shared mmap'd SQE. Userspace can change a field after we check it and before we use it. requestlen is the sharp case: it can gr...

UBUNTU-CVE-2026-89976

In the Linux kernel, the following vulnerability has been resolved: accel/ethosu: fix job completion fence cleanup ethosuioctlsubmitjob allocates donefence before validating buffer handles. Errors after allocation call ethosujoberrcleanup, which frees the job but leaks the uninitialized fence. A...

UBUNTU-CVE-2026-89948

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: fix freeing of claims on meshif deletion When the mesh interface is getting deleted, then batadvbladelbackboneclaims via batadvblapurgebackbonegw could make sure that all claims gets removed. But this function is...

UBUNTU-CVE-2026-90004

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: handle region split failure in applyminnrregions damonapplyminnrregions repeatedly split each region until its size becomes small enough to meet the user-defined low limit of the number of regions. The loop assumes...

UBUNTU-CVE-2026-89991

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix infinite loop in pcpufreelist push with one possible CPU pcpufreelistpush can loop forever when only one CPU is possible and an NMI re-enters pcpufreelistpush while the interrupted context holds that CPU's freelist lock...

UBUNTU-CVE-2026-89927

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: hyper-v: Clamp stimer deadline to avoid livelock Fix an issue where userspace or the guest can program an Hyper-V synthetic timer to have a deadline in the past via integer overflow, preventing the CPU from making...

UBUNTU-CVE-2026-89930

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Service local TLB flushes on failed nested VM-Enter KVM services local TLB flushes on "full" nested VM-Exits through nestedvmxvmexit, but not if a nested VM-Enter fails e.g. due to failed VMCS checks in...

UBUNTU-CVE-2026-89978

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: return early from a zero-length flush SYNCBO does not constrain its size, so a request for zero bytes reaches drmclflushvirtrange, which ends with an unconditional clflushoptend - 1. For an empty range that is the...

UBUNTU-CVE-2026-90035

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix division by zero in getestimatedbw getestimatedbw divides by link-dpiabwallocconfig.bwgranularity, which is zeroed by resetbwallocstruct and only populated once DPTUNNELINGBWALLOCCAPCHANGED has been handled...

UBUNTU-CVE-2026-89925

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix memory leak in guest debug handling bpdata is freed only for the error case by kfreebpdata. Every successful KVMSETGUESTDEBUG will leak bpdata...

UBUNTU-CVE-2026-89910

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Fix uninitialized stack variable issue with dmsintc Variable vector is declared on stack in function dmsintcinjectirq and sometimes it is used without initialized. Here fix this issue...