UBUNTU-CVE-2026-97594

In the Linux kernel, the following vulnerability has been resolved: landlock: Fix use-after-free of the source's parent directory currentcheckreferpath reads olddentry-dparent without holding a reference nor a lock on it, and then dereferences it in collectdomainaccesses and in the audit record. ...

UBUNTU-CVE-2026-97946

In the Linux kernel, the following vulnerability has been resolved: x86/amdnode: Fix PCI device reference counting in amdsmninit The local "root" pointer is a temporary variable used during the device search. Therefore, refcount related to the search iterators should be cleaned up after the searc...

UBUNTU-CVE-2026-97971

In the Linux kernel, the following vulnerability has been resolved: nstree: check listing permission before taking a namespace reference legitimizens takes a reference on the candidate namespace before maylistns has decided whether the caller may see it. The freensput cleanup on the denied path c...

UBUNTU-CVE-2026-97960

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Prevent drainpebs reentry The PEBS buffer is shared by all events on a CPU, so drainpebs must not be reentered. If so, one instance may observe stale buffer state and potentially access out-of-bound memory. Most...

UBUNTU-CVE-2026-97942

In the Linux kernel, the following vulnerability has been resolved: x86/alternatives: Exclude text poking against changepageattr From time to time, the following BUG can be observed in the x86 alternatives patching code 0: kernel BUG at arch/x86/kernel/alternative.c:2576! Oops: invalid opcode: 00...

UBUNTU-CVE-2026-98091

In the Linux kernel, the following vulnerability has been resolved: btrfs: detach failed sprout device from transaction update list When creating the first metadata chunk for a sprout filesystem, createchunk adds the new device to the transaction devupdatelist through device-postcommitlist. If th...

UBUNTU-CVE-2026-97941

In the Linux kernel, the following vulnerability has been resolved: mm/slab: take n-listlock in slabtryreturnfreelist to avoid race Commit ba7425312607 "mm, slab: add an optimistic slabtryreturnfreelist" incorrectly assumed that nobody has freed an object to the slab as long as slab-freelist is...

UBUNTU-CVE-2026-98003

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Do not reallocate GA log buffers on resume Commit c5e1a1eb9279 "iommu/amd: Simplify and Consolidate Virtual APIC AVIC Enablement" moved the GA log allocation from iommuinitpci to enableiommusvapic, which is called on...

UBUNTU-CVE-2026-97934

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix memory corruption from a "STACKTRACE" histogram key "cpu", "CPU", "stacktrace" and "STACKTRACE" are generic fields, defined with an offset and a size of zero so that the filter code can match them by name. parsefield...

UBUNTU-CVE-2026-97913

In the Linux kernel, the following vulnerability has been resolved: accel: ethosu: Ensure cmd stream ends with a stop op While the QSIZE register setting should prevent an out of bounds access of the command stream, it is not clear whether the h/w generates an interrupt in this case as is require...

UBUNTU-CVE-2026-98141

In the Linux kernel, the following vulnerability has been resolved: ntfs: propagate reparse index insertion failure updatereparsedata ignores the return value of setreparseindex. When index insertion fails, the code removes the just-written reparse data as cleanup but still returns 0, so symlink2...

UBUNTU-CVE-2026-97618

In the Linux kernel, the following vulnerability has been resolved: iouring/net: don't overconsume buffers when using MSGTRUNC When a recv/recvmsg is issued with MSGTRUNC and the incoming packet is larger than the provided buffer, the net layer returns the full length of the packet rather than th...

UBUNTU-CVE-2026-98101

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: use copy-on-write RCU updates in ip6mcsource pmc-sflist is read locklessly under rcureadlock by inet6mccheck during packet reception in the UDP and RAW multicast receive paths. ip6mcsource mutated psl-sladdr and...

UBUNTU-CVE-2026-97997

In the Linux kernel, the following vulnerability has been resolved: virtioring: fix stale descriptor flags after a failed packed add In a packed ring the AVAIL and USED bits sit in the descriptor itself, so writing them makes that descriptor available. Those bit combinations flip meaning on every...

UBUNTU-CVE-2026-98004

In the Linux kernel, the following vulnerability has been resolved: iommu/riscv: Serialize command queue publishing Serialize command queue publishing so software producer state advances only after a command is written and the hardware tail is updated. Wait for hardware consumption outside the...

UBUNTU-CVE-2026-98054

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Fix unbalanced module reference count straceopen invokes trymoduleget which on success takes the module reference. If any follow up operation causes straceopen to fail, the refcount shall be put down...

UBUNTU-CVE-2026-97599

In the Linux kernel, the following vulnerability has been resolved: ieee802154: hwsim: serialize pib updates to fix double-free hwsimupdatepib does an unserialized read-swap-free of phy-pib: pibold = rtnldereferencephy-pib; ... rcuassignpointerphy-pib, pib; kfreercupibold, rcu; It assumes the RTN...

UBUNTU-CVE-2026-98082

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix the possible bioclist memory leak during error There are two possible ways to leak bioc memory on btrfsorderedextent::bioclist: - An error occurred for btrfsinsertoneraidextent Then the function btrfsinsertraidextent...

UBUNTU-CVE-2026-98122

In the Linux kernel, the following vulnerability has been resolved: vxlan: mdb: Fix use-after-free in vxlanmdbremotesrcdel vxlanmdbisvalidsource, which validates MDBEATTRSOURCE and every MDBEATTRSRCLIST member, accepts the all-zeros address. A source list is only accepted on a , G entry, whose...

UBUNTU-CVE-2026-98084

In the Linux kernel, the following vulnerability has been resolved: bpf: backtracking shouldn't clear outer frame R1-R5 for callbacks When processing calls to bpfloop verifier marks R1 and R4 as precise. R1 tracks loop iterations number and because of the 'callbackdepth R1' mechanics in...

UBUNTU-CVE-2026-98061

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject tail calls directly from callback frames A tail call from a non-zero frame is modeled as a return from that frame. The verifier makes R0 unknown and calls preparefuncexit for the taken branch. When the current frame i...

UBUNTU-CVE-2026-98125

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix stale page cache in insert/collapse range smb3insertrange and smb3collapserange use truncatepagecacherange to invalidate the affected page cache. However, if off or oldeof is not page-aligned, the boundary pages a...

UBUNTU-CVE-2026-98113

In the Linux kernel, the following vulnerability has been resolved: ksmbd: rate limit unmapped SID errors A client can include many structurally valid but unmapped SIDs in a DACL. Logging every mapping failure lets one request generate hundreds of kernel error messages. Rate limit the message to...

UBUNTU-CVE-2026-97980

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix NULL pointer dereference in debugsetlevel Commit a2cec6863709 "s390/debug: Add s390dbf kernel parameter" incorrectly removed a null-id check from debugsetlevel, introducing a possible NULL pointer dereference for...

UBUNTU-CVE-2026-98120

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix subreq ref leak Fix a subrequest ref leak in netfsunbufferedwrite in the event that subreq-ioiter ends up zero length during preparation...

UBUNTU-CVE-2026-97610

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix uninitialized return value in netfsunbufferedwrite If preparation of the first subrequest fails, netfsunbufferedwrite exits its loop before ret is initialized. The empty-iterator check can do the same. For synchronous...

UBUNTU-CVE-2026-97943

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: Acquire initmm write lock on collapse to avoid UAF x86 implements page attribute modification using its Change Page Attributes CPA mechanism. This tracks properties of ranges such as cache mode through x86 page...

UBUNTU-CVE-2026-98067

In the Linux kernel, the following vulnerability has been resolved: erofs: disable LZ4 rolling decompression for now LZ4 rolling decompression 1 was introduced to reduce the memory footprint of temporary pages: For many cases, it is needed for users to read small data within a compressed extent...

UBUNTU-CVE-2026-98115

In the Linux kernel, the following vulnerability has been resolved: ksmbd: safely drain sessions during logoff SMB3 multichannel allows requests for one session to run on multiple connections. Wait for all channels bound to a session before freeing shared session objects. A deferred byte-range lo...

UBUNTU-CVE-2026-97937

In the Linux kernel, the following vulnerability has been resolved: ftrace: fork: Initialize function graph state before copyexecstate duptaskstruct copies the parent's taskstruct, including retstack. ftracegraphinittask clears the copied function graph state, but it currently runs after...

UBUNTU-CVE-2026-98015

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: E-Switch: fix use-after-free in mlx5eswitchtermtblput In mlx5eswitchtermtblput, the zero-ref cleanup check reads tt-refcount after termtblmutex has been released. Two concurrent callers on the same mlx5termtblhandle rac...

UBUNTU-CVE-2026-97996

In the Linux kernel, the following vulnerability has been resolved: virtio: fix use-after-free in unregistervirtiodevice deviceunregister is devicedel plus putdevice. When the caller holds no extra reference, that drops the last one and runs the release callback, which for several transports free...

UBUNTU-CVE-2026-98142

In the Linux kernel, the following vulnerability has been resolved: drm/cirrus-qemu: Validate BAR0 size during probe The cirrus-qemu driver relies on CIRRUSVRAMSIZE 4 MB to validate framebuffer sizes. However, during PCI probe, the driver mapped BAR0 without verifying that its size matches...

UBUNTU-CVE-2026-97555

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix heap overflow in DACL owner/group rewrite When idmodetocifsacl rewrites an existing DACL, it allocates a buffer sized according to the on-disk DACL length reported by daclptr-size. However, replacesidsandcopyaces...

UBUNTU-CVE-2026-98019

In the Linux kernel, the following vulnerability has been resolved: bpf: mark a NULL call argument precise checkfuncarg allows bpfregisterisnull for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scala...

UBUNTU-CVE-2026-98107

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix out-of-bounds write in l2capecredconnect l2capchanconnect tries to ensure there are no more than L2CAPECREDCONNSCIDMAX pending ECRED channels, so they fit in the same L2CAPECREDCONNREQ that l2capecredconnect...

UBUNTU-CVE-2026-98020

In the Linux kernel, the following vulnerability has been resolved: pdscore: fix cmdregs access racing BAR unmap on reset pdscresetprepare and pdscresetdone's pdscmapbars error path clear/iounmap cmdregs without devcmdlock, and pdsclegacyfirmwareupdate's download loop derefs cmdregs after droppin...

UBUNTU-CVE-2026-98072

In the Linux kernel, the following vulnerability has been resolved: net/rds: use wqhassleeper in releaseinxmit releaseinxmit clears RDSINXMIT with clearbitunlock and then checks waitqueueactive to decide whether anyone needs waking. clearbitunlock is only a release operation: it orders the critic...

UBUNTU-CVE-2026-97982

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Fix budget accounting The gmacrx function returns the remaining NAPI budget, but its caller treats the return value as the number of packets received. An idle poll therefore reports a full budget and remai...

UBUNTU-CVE-2026-97573

In the Linux kernel, the following vulnerability has been resolved: bnxten: Handle buffer allocation failure in bnxtrxringreset bnxtrxringreset frees the ring buffers and then reallocates them, ignoring the result. bnxtalloconerxring can fail in bnxtalloconetpainfodata, which returns -ENOMEM on t...

UBUNTU-CVE-2026-98013

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqpie: clamp quantum in change path fqpiechange accepts any quantum value from userspace, including 1. With a crafted size table qdiscpktlen reaches 2 GiB, so quantum=1 makes the deficit-refill loop spin 2^31 times und...

UBUNTU-CVE-2026-98055

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Clean up the bus when fetching ML caps fails sndhdacextbusgetmlcapabilities may fail and its return code shall be checked and accounted for. Address the issue by updating the error-path for avspciprobe. At the...

UBUNTU-CVE-2026-97981

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Count dropped frames as NAPI work The RX loop only consumes budget when it successfully delivers a frame. Error paths keep consuming descriptors without reducing the budget, so a stream of bad frames can...

UBUNTU-CVE-2026-98092

In the Linux kernel, the following vulnerability has been resolved: ASoC: amd: yc: fix memory leak in acp6xpdmdmaclose acp6xpdmdmaclose does not free the runtime-privatedata buffer allocated in acp6xpdmdmaopen. Add the missing kfree...

UBUNTU-CVE-2026-98012

In the Linux kernel, the following vulnerability has been resolved: net/sched: sfq: clamp quantum in change path sfqchange accepts any non-negative quantum only rejects intctl-quantum 120 with -EINVAL, matching fqcodelchange and the init clamp. Conditions to recreate the bug: CONFIGNETSCHSFQ=y...

UBUNTU-CVE-2026-97596

In the Linux kernel, the following vulnerability has been resolved: ipvs: reject invalid states in connection template sync records IPVS sync receivers validate protocol states before creating or updating a connection. For connection templates, however, they only log states outside the template...

UBUNTU-CVE-2026-97948

In the Linux kernel, the following vulnerability has been resolved: powerpc/eeh: Fix recursive locking on devices without EEH sensitive driver The commit 1010b4c012b0 "powerpc/eeh: Make EEH driver device hotplug safe" refactored the EEH code such that the pcirescanremovelock is held at the...

UBUNTU-CVE-2026-98066

In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: Fix potential double-free at error path The fix for caiaq driver's resource management to handle the errors tries to release the resources in a common destructor call, but as a sashiko review for another patch...

UBUNTU-CVE-2026-98088

In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Avoid out-of-bounds cpumaskofnode call in baseassignreplyqueues devtonode can return NUMANONODE -1 on systems without NUMA topology information for the PCI device, such as single-socket boards that don't expose...

UBUNTU-CVE-2026-97920

In the Linux kernel, the following vulnerability has been resolved: tracing: Keep the entry count when the histogram stats allocation fails printentries uses nentries both as the number of sort entries and as its own return value, so the -ENOMEM it stores when the stats allocation fails overwrite...