UBUNTU-CVE-2026-98063

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL-ptr-deref in btfvarshow btfvarshow calls btftypeidresolve unconditionally, which dereferences btf-resolvedids. That is NULL for a base BTF - e.g. the vmlinux BTF that bpfsnprintfbtf renders against - since base BTF ...

UBUNTU-CVE-2026-98064

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL-ptr-deref when showing a void BTF type btfmodifiershow resolves the modifier and then calls btftypeopst-show unconditionally. For the void type typeid 0, BTFKINDUNKN kindops has no entry, so -show is NULL. A "const...

UBUNTU-CVE-2026-98069

In the Linux kernel, the following vulnerability has been resolved: net/rds: acquire the fastpath locks in rdsconnshutdown rdsconnshutdown quiesces the transmit and receive-refill paths by waiting for RDSINXMIT and RDSRECVREFILL to be sampled clear, and then runs the transport shutdown and...

UBUNTU-CVE-2026-98103

In the Linux kernel, the following vulnerability has been resolved: igmp: convert struct ipsflist to RCU Commit 23d2b94043ca "igmp: Add ipmclist lock in ipcheckmcrcu" added spinlockbh&im-lock to ipcheckmcrcu to prevent a use-after-free while iterating im-sources during concurrent deletions...

UBUNTU-CVE-2026-98123

In the Linux kernel, the following vulnerability has been resolved: sctp: fix soft lockup from unpadded ASCONF-ACK parameter iteration sctpverifyasconf walks ASCONF-ACK parameters with sctpwalkparams, which advances by SCTPPAD4length, while the consumer sctpgetasconfresponse iterates the same...

UBUNTU-CVE-2026-98126

In the Linux kernel, the following vulnerability has been resolved: smb/client: validate new EOF for zero range When FALLOCFLZERORANGE is used without FALLOCFLKEEPSIZE, smb3zerorange may extend EOF without checking RLIMITFSIZE, allowing the file to grow beyond the caller's file-size limit. Fix th...

UBUNTU-CVE-2026-98127

In the Linux kernel, the following vulnerability has been resolved: smb/client: validate new EOF for insert range smb3insertrange does not check if the new file size isize + len is valid. This allows FALLOCFLINSERTRANGE to bypass RLIMITFSIZE, exceed smaxbytes, or produce a size outside the lofft...

UBUNTU-CVE-2026-98151

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix REG INVARIANTS VIOLATION on speculative pointer arithmetic Take the following unprivileged program as an example: r0 = bpfmaplookupelem... / PTRTOMAPVALUE, offset 0 / ... 14: r0 += r1 / r1 is a bounded scalar / 15: r9 = ...

UBUNTU-CVE-2026-97562

In the Linux kernel, the following vulnerability has been resolved: smb: client: pin DFS superblock in iterator callback tconsupercb stores a raw superblock pointer, but cifsgetsuper takes its active reference only after iteratesuperstype has dropped sumount and its passive reference. Concurrent...

UBUNTU-CVE-2026-97565

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject short READ responses in CIFSSMBRead CIFSSMBRead reads DataLengthHigh, DataLength and DataOffset out of the READRSP returned by the server without first checking that a whole READRSP was actually received. The...

UBUNTU-CVE-2026-97598

In the Linux kernel, the following vulnerability has been resolved: ipv4: fib: bound automatic table ID allocation fibemptytable probes every table ID from 1 until it finds a free one. IPv4 tables are stored in a 256-bucket hash table, so a dense set of IDs makes each probe walk a growing hash...

UBUNTU-CVE-2026-97606

In the Linux kernel, the following vulnerability has been resolved: fs: autofs: fix memory leak in autofsfillsuper In autofsfillsuper, we create a new inode using autofsnewino, however, if we fail to create rootinode, that is, rootinode failure path, we return -ENOMEM without freeing the new...

UBUNTU-CVE-2026-97612

In the Linux kernel, the following vulnerability has been resolved: net: mpls: clear innerprotocol when the last label is popped skbmplspush records the pre-encapsulation network header once, gated on !skb-innerprotocol. skbmplspop never clears that record, so it outlives the encapsulation it...

UBUNTU-CVE-2026-97616

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: release all action references on NEWACTION failure When a batched RTMNEWACTION request replaces an existing action, tcfidrcheckalloc takes a temporary reference on it. If a later action fails to initialize,...

UBUNTU-CVE-2026-97900

In the Linux kernel, the following vulnerability has been resolved: drm/drmexec: fix up contended obj when numobjects is 0 drmexecpreparearray silently returns success without calling drmexeclockcontended when numobjects is zero. This breaks the invariant upheld by drmexeclockobj, where every ent...

UBUNTU-CVE-2026-97951

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix hang for aborted WRITEPENDING commands When a LUNRESET aborts a WRITE command that is in the TRANSPORTWRITEPENDING state, the target core sets CMDTABORTED and waits for the frontend to finish processing. ...

UBUNTU-CVE-2026-97958

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: Don't replay RTMGETCHAIN in tcctlchain. If a netlink socket sends RTMGETCHAIN requests repeatedly without recving the responses, tcctlchain hogs CPU and triggers Hung Task splat. 0 As caught in the stack trace,...

UBUNTU-CVE-2026-97964

In the Linux kernel, the following vulnerability has been resolved: pppsynctty: ensure a writeable skb header pppsynctxmunge checks headroom before prepending the address and control bytes, but does not ensure that the skb header is writable. A received skb can reach this function through PPP...

UBUNTU-CVE-2026-98021

In the Linux kernel, the following vulnerability has been resolved: net: reject oversized txqueuelen at netlink parse time rtnlcreatelink assigns IFLATXQLEN directly to dev-txqueuelen without going through netifchangetxqueuelen, so a device created with "ip link add ... txqueuelen 500000" bypasse...

UBUNTU-CVE-2026-98056

In the Linux kernel, the following vulnerability has been resolved: nvme: remove stale namespaces by NSID range during scan nvmescannslist drops the stale namespaces in each gap in the reported NSID list one NSID at a time. Every iteration calls nvmefindgetns to look the namespace up and removes ...

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-2026-98075

In the Linux kernel, the following vulnerability has been resolved: bpf: reject BPFPSEUDOFUNC reference to the main program fixups.c:jitsubprogs rewrites BPFPSEUDOFUNC loads to contain real function addresses. This function is invoked from bpfjitsubprogs only when env-subprogcnt 1. Meaning that f...

UBUNTU-CVE-2026-97523

In the Linux kernel, the following vulnerability has been resolved: mptcp: close race between scheduler and state change The mptcp scheduler may race with subflow sockets state change: data transmission on the selected socket may fail and a later release could try to use mssnow reset to 0 for a...

UBUNTU-CVE-2026-97524

In the Linux kernel, the following vulnerability has been resolved: mptcp: avoid unneeded actions on subflow reset Once in a blue moon, the mptcp receive path can recursively call mptcpdataready via state change under unlucky error conditions, and then try to hold the data lock again. Break the...

UBUNTU-CVE-2026-97533

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: Acquire initmm read lock on attribute changes to avoid UAF A previous commit protected against races between ptdump and CPA collapse, however one still exists between attribute changes and collapse as reported by Deni...

UBUNTU-CVE-2026-97899

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix memory leak in queryperfconfiglist When krealloc fails, free the original oaconfigids before returning to avoid a memory leak. cherry picked from commit 9977e9d84f46d4f12ad35fbbc0ec4638554bce87...

UBUNTU-CVE-2026-97905

In the Linux kernel, the following vulnerability has been resolved: cpufreq: zero-initialize policy cpumask before sysfs publication cpufreqpolicyalloc allocates policy-cpus with alloccpumaskvar, i.e. without GFPZERO, unlike the sibling relatedcpus and realcpus masks. With CONFIGCPUMASKOFFSTACK=y...

UBUNTU-CVE-2026-98157

In the Linux kernel, the following vulnerability has been resolved: EDAC/devicesysfs: Use kstrtouint for pollmsec to prevent truncation The pollmsec sysfs store file uses simplestrtoul which accepts an unsigned long, but the target field pollmsec is unsigned int. On 64-bit systems, a value UINTMA...

UBUNTU-CVE-2026-98002

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix ineffective error check in nested domain allocation amdiommupdomidalloc returns an int: a domain ID on success, or the negative errno from idaallocrange when the ID space is exhausted or memory is short...

UBUNTU-CVE-2026-97611

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix use-after-free of the flow table mask array tblmaskarrayrealloc retires the old maskarray before it stops being reachable: old = ovsldereferencetbl-maskarray; if old ... callrcu&old-rcu, maskarrayrcucb;...

UBUNTU-CVE-2026-98036

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve special fields in recycled rhtab elements rhtabmapupdateelem initializes special fields after obtaining an element from bpfmemcachealloc. The allocator can return a fresh, zeroed unit, or recycle one from its...

UBUNTU-CVE-2026-97961

In the Linux kernel, the following vulnerability has been resolved: perf/core: Allow listdel during perfeventoverflow A PMU might use perfschedcbinc and perfschedcbdec interface to get the PMU call back function pmu::schedtask invoked at schedule in and schedule out. This is achieved by walking...

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-2026-97563

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject out-of-bounds DataOffset in CIFSSMBRead The SMB1 synchronous read helper CIFSSMBRead validates the server's DataLength against CIFSMaxBufSize and the caller's count, but never validates DataOffset. The copy...

UBUNTU-CVE-2026-97538

In the Linux kernel, the following vulnerability has been resolved: hwmon: asusrogryujin Validate HID report lengths rogryujinrawevent parses response headers and payload fields without first checking that they are present in the received report. A short report can therefore make the driver consu...

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-2026-97933

In the Linux kernel, the following vulnerability has been resolved: tracing: Take tracearray reference when opening a tracer options file When a tracer option file is opened, it is passed a descriptor that points to an element on the tracearray's topts array. This element has information to find...

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-2026-97530

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix soft lockup polling continuation IOCB signature qla27xxcopymultiplepkt and qla27xxcopyfpinpkt poll rspq-ringptr-signature for RESPONSEPROCESSED 0xDEADDEAD to decide whether the next continuation IOCB has arrive...

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-2026-97906

In the Linux kernel, the following vulnerability has been resolved: bootconfig: Fix integer overflow in initrd size check Sashiko reported that in getbootconfigfrominitrd, a crafted initrd with a huge bootconfig size such as 0xFFFFFFFF can cause the pointer arithmetic: data = void hdr - size; to...

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-2026-97974

In the Linux kernel, the following vulnerability has been resolved: ipv6: null-check fib6node before accessing in ip6delrtsiblings syzbot reported a null-ptr-deref in ip6delrtsiblings 0. The stack trace hinted towards a null dereference of rt-fib6node when fn-leaf is accessed in ip6delrtsiblings...

UBUNTU-CVE-2026-98154

In the Linux kernel, the following vulnerability has been resolved: nvme-rdma: fix -EIO cleanup order in queuerq On -EIO, the RDMA queuerq path reports a host path error and then still cleans up the command and unmaps the SQE DMA. The path error helper completes the request, so that is double...

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-2026-97535

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound VP index against VPCTRL IOCB bitmap size The VP control IOCB selects its target virtual port by setting one bit in vpidxmap, a fixed 16-byte 128-bit array in both vpctrlentry24xx and vpctrlentry24xxext...

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-2026-98047

In the Linux kernel, the following vulnerability has been resolved: bpf: Check ancestor frames for rbtree callbacks bpfrbtreeadd invokes its comparator while the caller holds the root lock. The native insertion code retains raw parent and link pointers across the callback, so the verifier prohibi...

UBUNTU-CVE-2026-98044

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject legacy packet loads from callbacks checkldabs models a failed BPFLDABS or BPFLDIND in a subprogram as an implicit return with R0 set to zero. It calls preparefuncexit to explore this synthesized path. When the load is...