UBUNTU-CVE-2026-89488

In the Linux kernel, the following vulnerability has been resolved: openvswitch: Fix CT limit teardown use-after-free Packet processing uses CT limit state under RCU, while netns teardown frees that state under ovsmutex. The CT limit pointer was neither removed from readers nor protected by a gra...

UBUNTU-CVE-2026-89555

In the Linux kernel, the following vulnerability has been resolved: mpls: reload header after pskbmaypull mplsselectmultipath calls mplsmultipathhash to choose a nexthop when an MPLS route has multiple nexthops. While walking the MPLS label stack, the hash routine caches hdr for the current label...

UBUNTU-CVE-2026-89508

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucmasetibpath ucmasetibpath calls ucmaeventhandler straight from the write path, without the handler lock that keeps ctx-file stable while a uevent is queued. The handler re-reads ctx-file for every...

UBUNTU-CVE-2026-89670

In the Linux kernel, the following vulnerability has been resolved: nfsd: hold rcu across localio cmpxchg retry nfsdfile objects are freed via callrcu filecache.c:296, and nfsdfileslab is created without SLABTYPESAFEBYRCU KMEMCACHEnfsdfile, 0 at filecache.c:789, so the slab page backing a freed...

UBUNTU-CVE-2026-80994

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix flow mask use-after-free on flow deletion The commit in the Fixes tag below made so flow-mask free is scheduled via RCU right after it is removed from the flow table. The pointer stays in the flow structure...

UBUNTU-CVE-2026-89637

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF and buffer leak in cifschecktrans2 for malformed secondary T2 When a valid primary TRANSACT2 response has been received mid-respbuf set, mid-multiRsp true and a subsequent secondary response causes...

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 ...

AZL-100211 CVE-2026-80952 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: i3c: master: Fix info leak and UAF in device unregister path i3cmasterunregisteri3cdevs clears i3cdev-dev-desc before calling deviceunregister. During deviceunregister, devicedel emits a KOBJREMOVE uevent and unbinds the driver...

UBUNTU-CVE-2026-89510

In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Cancel regwork before freeing device on remove c4iwuldstatechange queues regwork to register the RDMA device. c4iwremove can free ctx-dev while this work is pending or running, leaving c4iwregisterdevice accessing the...

UBUNTU-CVE-2026-89622

In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: clear rxbuf after I2C/SMBus transfer completes mcpi2csmbusread stores the caller-supplied buffer pointer in mcp-rxbuf for the duration of a transfer but never clears it when the transfer finishes or times out. Once...

UBUNTU-CVE-2026-89635

In the Linux kernel, the following vulnerability has been resolved: ksmbd: only rebind the reopened file's own oplock on durable reconnect ksmbdreopendurablefd walks the inode's moplist and rebinds every detached oplock to the reconnecting session: listforeachentryrcuop, &ci-moplist, opentry,...

UBUNTU-CVE-2026-89479

In the Linux kernel, the following vulnerability has been resolved: sctp: stop processing a packet once its association is deleted sctpendpointbhrcv looks the association up only when chunk-asoc is NULL, and caches the result in chunk-asoc and chunk-transport without taking a reference. A packet...

UBUNTU-CVE-2026-89548

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: always drain cachecleaner before destroying a cachedetail sunrpcdestroycachedetail only cancels the global cachecleaner delayedwork when cachelist is empty. During per-netns teardown cachelist is never empty because...

UBUNTU-CVE-2026-89564

In the Linux kernel, the following vulnerability has been resolved: ip: orphan prefetched skbs before multicast forwarding IPv4 and IPv6 input preserve an skb-sk association installed by bpfskassign so that local delivery can use the selected socket under RCU. Both address families can also...

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-2026-89703

In the Linux kernel, the following vulnerability has been resolved: nfsd: set SCSTATUSFREED in nfsd4droprevokedstid for delegations nfsd4droprevokedstid handles FREESTATEID for admin-revoked delegations but does not set SCSTATUSFREED before releasing cllock. revokedelegation uses this flag to...

UBUNTU-CVE-2026-80971

In the Linux kernel, the following vulnerability has been resolved: ALSA: bcd2000: clear the URB pointers on disconnect bcd2000freeusbrelatedresources frees both URBs and leaves the pointers behind: usbkillurbbcd2k-midiouturb; usbkillurbbcd2k-midiinurb; usbfreeurbbcd2k-midiouturb;...

UBUNTU-CVE-2026-89600

In the Linux kernel, the following vulnerability has been resolved: fanotify: fix use-after-free of file range info fsnotifyprecontent builds its filerange on the triggering task's stack. fanotifyallocpermevent saves a pointer to range.pos in the heap-allocated permission event so...

UBUNTU-CVE-2026-89441

In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: cancel card-detect work on remove Disabling the device interrupt and freeing the IRQ prevents new card-detect work from being queued, but carddetwork already queued by the handler can still run after viasdremove...

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...