UBUNTU-CVE-2026-89591

In the Linux kernel, the following vulnerability has been resolved: accel/rocket: initialize job domain before cleanup paths rocketioctlsubmitjob releases rjob through rocketjobput on allocation error paths. rocketjobcleanup unconditionally calls rocketiommudomainputjob-domain, but job-domain is...

UBUNTU-CVE-2026-80955

In the Linux kernel, the following vulnerability has been resolved: dm-pcache: fix use-after-free and invalid seg operations in ksetreplay In ksetreplay, when key-seggen is stale key-seggen cachepos.cacheseg-gen, cachekeyputkey is called but then key-cachepos.cacheseg is accessed as the argument ...

UBUNTU-CVE-2026-89620

In the Linux kernel, the following vulnerability has been resolved: HID: intel-thc-hid: intel-quickspi: validate report size before copy writecmdtotxdma builds an output report in qsdev-reportbuf, a heap buffer allocated in quickspiallocreportbuf to the device-descriptor derived maxreportlen a fe...

UBUNTU-CVE-2026-89592

In the Linux kernel, the following vulnerability has been resolved: accel/rocket: fix NULL dereference and integer overflow in rocketjobpush rocketjobpush allocates a temporary array to hold all input and output GEM object pointers: bos = kvmallocarrayjob-inbocount + job-outbocount, sizeofvoid ,...

UBUNTU-CVE-2026-89550

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

UBUNTU-CVE-2026-89687

In the Linux kernel, the following vulnerability has been resolved: nfsd: ensure nfsdfiledoacquire does not use a non-opened file -atomicopen is permitted to return success without actually opening the file. It indicates this by calling finishnoopen. This means dentrycreate can return a file whic...

UBUNTU-CVE-2026-89715

In the Linux kernel, the following vulnerability has been resolved: NFS/localio: fix ref leak on nfsuuidaddfile failure When nfsuuidaddfile races with nfsuuidput tearing down uuid-net, it returns -ENXIO without publishing nfl-nfsuuid via rcuassignpointer. nfsopenlocalfh then enters its error bran...

UBUNTU-CVE-2026-81006

In the Linux kernel, the following vulnerability has been resolved: ipmi: Remove all sysfs files on registration failure ipmiaddsmi creates the nrusers and nrmsgs files before trying to create the maintenancemode file. If that last creation fails, the error path removes only nrusers before droppi...

UBUNTU-CVE-2026-89595

In the Linux kernel, the following vulnerability has been resolved: fsnotify: Fix stale object mask after concurrent mark updates When a mark gets a new event bit, fanotify and inotify may avoid recalculating the object mask if the cached aggregate already contains that bit. This is racy with a...

UBUNTU-CVE-2026-89601

In the Linux kernel, the following vulnerability has been resolved: ext2: Fix lost inode updates for ISSYNC inodes ext2setsize and ext2xattrset2 had a construct like: if ISSYNCinode syncinodemetadatainode, 1; else markinodedirtyinode; which leads to lost inode updates for ISSYNC inodes because...

UBUNTU-CVE-2026-89606

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: reject too-small tag 70 packets ecryptfsparsetag70packet subtracts fixed metadata fields from the parsed packet body size to derive the encrypted filename size. A malformed packet with a body smaller than those fixed...

UBUNTU-CVE-2026-89697

In the Linux kernel, the following vulnerability has been resolved: nfsd: add fhwantwrite for early-verified SETATTR in nfsdprocsetattr The BOTHTIMESET branch calls fhverify early so setattrprepare can inspect the dentry. This causes nfsdsetattr to skip fhwantwrite, so notifychange runs without a...

UBUNTU-CVE-2026-80949

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix memory leak in brcmfsdioreadcontrol The memory allocated for buf is not freed in some of the error paths in brcmfsdioreadcontrol. Fix that by adding vfree calls. arend: rework as suggested by Johannes...

UBUNTU-CVE-2026-89462

In the Linux kernel, the following vulnerability has been resolved: power: supply: max17040: propagate register read errors max17040getvcell and max17040getsoc ignore errors returned by regmapread. When an I2C transfer fails, the uninitialized register value is converted and reported to userspace...

UBUNTU-CVE-2026-89473

In the Linux kernel, the following vulnerability has been resolved: power: supply: bq25890: Fix powersupply reference leak bq25890fwprobe acquires a reference to a secondary charger using powersupplygetbyname, but the reference is not released on later probe failures or on driver detach. In...

UBUNTU-CVE-2026-89718

In the Linux kernel, the following vulnerability has been resolved: zram: fix out-of-bounds access in writebackstore Patch series "zram: fix stale scan bounds after reinitialization". Both writebackstore and readblockstate derive their table scan bounds from zram-disksize before acquiring devlock...

UBUNTU-CVE-2026-89688

In the Linux kernel, the following vulnerability has been resolved: nfsd: drop the stateid, not the stateowner, on seqidop replay retry In nfs4preprocessseqidop the stateid is obtained from nfsd4lookupstateid, which holds a reference on the nfs4stid sccount but takes no reference on the stateowne...

UBUNTU-CVE-2026-89619

In the Linux kernel, the following vulnerability has been resolved: HID: intel-thc-hid: intel-quickspi: bound GETREPORT response to the caller buffer quickspihidrawrequest receives the caller's buffer length in len, but quickspigetreport never sees it and copies the whole device-supplied response...

UBUNTU-CVE-2026-89623

In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: stop device IO before hidhwstop Quiesce device IO at the start of the devm cleanup callback mcp2221hidunregister so that incoming HID reports cannot race with hardware teardown during probe failure or device removal...

UBUNTU-CVE-2026-89657

In the Linux kernel, the following vulnerability has been resolved: libceph: validate OSD extent maps before cursor advance net/ceph/osdclient.c:osdsparseread validates that the sparse-read data length matches the summed extent lengths, but it does not validate that each OSD-supplied extent is...

UBUNTU-CVE-2026-89578

In the Linux kernel, the following vulnerability has been resolved: dm-io: clone the source bio instead of copying its biovec For DMIOBIO requests, doregion built each destination bio by walking the source bio's biovec and re-adding the pages one at a time, tracking the remaining transfer in...

UBUNTU-CVE-2026-89590

In the Linux kernel, the following vulnerability has been resolved: accel/rocket: Fix error path handling in rocketjobrun In rocketjobrun, after taking an extra fence reference for job-donefence via dmafenceget, the error paths have three bugs: - The dmafence reference held by job-donefence is...

UBUNTU-CVE-2026-89679

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix null dereference in nfsd4setattr for deleg timestamp attrs When a SETATTR request includes FATTR4WORD2TIMEDELEGACCESS or FATTR4WORD2TIMEDELEGMODIFY in the attribute bitmap, nfsd4setattr sets delegattrs=true and calls...

UBUNTU-CVE-2026-89574

In the Linux kernel, the following vulnerability has been resolved: dm array: validate array block headers on read arrayblockcheck validates blocknr and csum and nothing else, while nodecheck, next to it, has bounded the structural fields since both were written. dmarraycursornext takes its loop...

UBUNTU-CVE-2026-89624

In the Linux kernel, the following vulnerability has been resolved: HID: universal-pidff: stop the device when force-feedback init fails universalpidffprobe starts the device with hidhwstart and then, if force-feedback initialisation fails, returns the error through a label that only does "return...

UBUNTU-CVE-2026-89445

In the Linux kernel, the following vulnerability has been resolved: iommufd: Fix UAF in selftest IOPF reporting IOMMUFD selftest TRIGGERIOPF borrows an attach handle from group-pasidarray without synchronizing against PASID detach, then a concurrent iommureportdevicefault can dereference that...

UBUNTU-CVE-2026-89500

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Make cpubuffer::freepage a bufferdatareadpage Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuforder for the freepages call. This mismatched order may crashes the kernel...

UBUNTU-CVE-2026-89503

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix subbuf resize race with ringbufferallocreadpage ringbufferallocreadpage is racy with ringbuffersubbuforderset, it can allocate a reader page with an outdated order. This isn't a big issue, the user can still...

UBUNTU-CVE-2026-89460

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

UBUNTU-CVE-2026-89589

In the Linux kernel, the following vulnerability has been resolved: acpi/apei/ghes: Use rawspinlockt for CXL CPER work locks The CXL CPER work registration and unregistration helpers acquire cxlcperworklock and cxlcperproterrworklock with a spinlock guard, which leaves local interrupts enabled. T...

UBUNTU-CVE-2026-89652

In the Linux kernel, the following vulnerability has been resolved: ceph: bound copied dentry name length in NFS export getname cephgetname copies the MDS-supplied name into the caller's NAMEMAX-sized buffer with memcpyname, rinfo-dname, rinfo-dnamelen and then writes namerinfo-dnamelen = 0,...

UBUNTU-CVE-2026-89530

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Reject inline replies that overflow the pull-up buffer An RPC-over-RDMA client can request a reply, such as an NFS READ payload, without providing a Write list or a Reply chunk to carry it. When such a reply needs more...

UBUNTU-CVE-2026-89543

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix use-after-free in rpcclnthandleevent and rpcclntremovepipedir Normal client creation goes through rpcsetuppipedir, which records clnt-pipefssb, but the mount-event path in rpcclnthandleevent calls rpcsetuppipedirsb...

UBUNTU-CVE-2026-81011

In the Linux kernel, the following vulnerability has been resolved: platform/x86: hp-bioscfg: pass validated element count to package parsers The per-type package parsers are handed the wrong element count. hpinitbiospackageattribute validates obj-package.count and then calls one of the five...

UBUNTU-CVE-2026-89603

In the Linux kernel, the following vulnerability has been resolved: entry: Fix seccomp bypass after ptrace with TSYNC Sashiko review pointed out the following issue. If a thread is stopped in syscalltraceenter for ptrace, another thread can install a seccomp filter with SECCOMPFILTERFLAGTSYNC e.g...

UBUNTU-CVE-2026-89561

In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: fix NULL dereference of idev in ipv6rplsrhrcv ipv6rplsrhrcv dereferences idev from in6devget without a NULL check when reading idev-cnf.rplsegenabled. When the device's MTU drops below IPV6MINMTU, addrconfifdown clears...

UBUNTU-CVE-2026-89693

In the Linux kernel, the following vulnerability has been resolved: nfsd: check nfsd4acltoattr return value in nfsd4create nfsd4create stores the return value of nfsd4acltoattr in status, but the switchcreate-crtype block unconditionally overwrites it in every branch. ACL translation errors are...

UBUNTU-CVE-2026-89698

In the Linux kernel, the following vulnerability has been resolved: nfsd: widen nfsdgenlrqstp address fields to sockaddrstorage struct nfsdgenlrqstp declares rqdaddr and rqsaddr as plain "struct sockaddr" 16 bytes. When an IPv6 NFS client is connected, nfsdgenlrpcstatuscomposemsg casts these fiel...

UBUNTU-CVE-2026-89700

In the Linux kernel, the following vulnerability has been resolved: nfsd: validate sockaddr length per family in listenerset nfsdsocknlpolicy declares NFSDASOCKADDR as a bare NLABINARY attribute with no minimum length. A CAPNETADMIN caller can send a 16-byte NFSDASOCKADDR with safamily=AFINET6,...

UBUNTU-CVE-2026-89545

In the Linux kernel, the following vulnerability has been resolved: sunrpc: defer rqargp and rqresp free until after RCU grace period svcrqstfree frees rqstp-rqargp and rqstp-rqresp synchronously via kfree, but defers the rqstp struct free via kfreercu. After svcexitthread calls listdelrcu and...

UBUNTU-CVE-2026-89644

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map leak in NOCOW direct I/O write btrfsdioiomapbegin calls btrfsgetextent, which returns an extent map reference that must be dropped on all exit paths. For direct writes into a NOCOW range,...

UBUNTU-CVE-2026-89690

In the Linux kernel, the following vulnerability has been resolved: nfsd: defer vfree of compound ops to fix rpcstatus UAF The rpcstatus netlink dumpit walks every in-flight svcrqst under rcureadlock and, for NFSv4 requests, reads opnums out of args-ops. But args-ops is a separate vmalloc buffer...

UBUNTU-CVE-2026-80979

In the Linux kernel, the following vulnerability has been resolved: net/smc: unregister the connection before draining the rx tasklet smcconnfree calls smcismunsetconn only while the link group is still on its device list, and never sets conn-killed. smclgrterminatesched unlinks the group...

UBUNTU-CVE-2026-89598

In the Linux kernel, the following vulnerability has been resolved: fbdev: ssd1307fb: defer I2C transfers from damage callbacks The fbdev damage callbacks may run from fbcon while printk has disabled preemption. They currently update the display synchronously, which enters the sleeping I2C transf...

UBUNTU-CVE-2026-80945

In the Linux kernel, the following vulnerability has been resolved: crypto: iaa - unmap dst before software fallback on decompress On a hardware analytics error, decompress retries through the software fallback, which writes req-dst with the CPU while it is still mapped DMAFROMDEVICE. With SWIOTL...

UBUNTU-CVE-2026-80975

In the Linux kernel, the following vulnerability has been resolved: mfd: qnap-mcu: keep the reply buffer alive past a command timeout qnapmcuexec publishes an on-stack buffer to the receive path: unsigned char rxQNAPMCURXBUFFERSIZE; ... reply-data = rx; reply-length = length; and qnapmcureceivebu...

UBUNTU-CVE-2026-89539

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: reject duplicate CREDSVALUE options gssxdecoptionarray walks the wire-supplied option array and, for every entry whose name matches CREDSVALUE, calls gssxdeclinuxcreds on the same struct svccred. That helper unconditional...

UBUNTU-CVE-2026-89558

In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix stilldegraded being inverted in raid10syncrequest Commit fe6a19d40ceb "md/md-bitmap: merge mdbitmapstartsync into bitmapoperations" converted stilldegraded from int to bool, but inverted the assignment in the loop...

UBUNTU-CVE-2026-89709

In the Linux kernel, the following vulnerability has been resolved: lockd, nfsd: RCU-protect nlmsvcops dispatch nlmsvcops is published by nfsdlockdinit and cleared by nfsdlockdshutdown with plain stores, while lockd dereferences it unguarded from dispatch sites in fs/lockd/svcsubs.c. The pointer...

UBUNTU-CVE-2026-89502

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Free cpubuffer::freepage with subbuforder When sub-buffers use an order greater than 0, cpubuffer-freepage is allocated with subbuforder. Use the correct order for cpubuffer-freepage...