CVE-2026-89486

In the Linux kernel, the following vulnerability has been resolved: ipmi: Fix use-after-free of cmdrcvr in ipmidestroyuser Commit 9e91f8a6c868 "ipmi:msghandler: Remove srcu for the ipmiinterfaces list" dropped the synchronizercu between unlinking the command receivers from intf-cmdrcvrs and freei...

UBUNTU-CVE-2026-89482

In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: do not accept C2HData based on blkrqpayloadbytes alone Commit 25e5cb780e62 "nvme-tcp: fix possible crash in writezeroes processing" established that blkrqpayloadbytes must not be read without first checking...

CVE-2026-89560

In the Linux kernel, the following vulnerability has been resolved: landlock: Require LANDLOCKACCESSFSMAKEREG for whiteout creation Whiteout objects are used in the upper layer of an OverlayFS to indicate that the file with this name does not exist in the unified view, even if it is present in on...

CVE-2026-89459

In the Linux kernel, the following vulnerability has been resolved: s390/percpu: Fix MVIYPERCPU with older binutils Commit a737737cdb9c "s390/percpu: Infrastructure for more efficient thiscpu operations" introduced MVIYPERCPU, which stringifies arguments that are already C string literals. This...

UBUNTU-CVE-2026-89453

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Put PCI device after handling PPR faults iommucalliopfnotifier looks up the requester with pcigetdomainbusandslot, which returns a PCI device with its reference count incremented. Neither the successful...

UBUNTU-CVE-2026-89525

In the Linux kernel, the following vulnerability has been resolved: udf: reject VAT indexes equal to the entry count UDF 1.50 virtual partition mapping uses the VAT as an array of physical block mappings. snumentries stores the number of entries in that array, not the highest valid index. The val...

UBUNTU-CVE-2026-89454

In the Linux kernel, the following vulnerability has been resolved: PCI: plda: Fix IRQ domain leaks in the error paths of pldainitinterrupts pldainitinterrupts initializes IRQ domains and creates IRQ mapping but does not unwind them when later step fails. If platformgetirq or either...

UBUNTU-CVE-2026-89596

In the Linux kernel, the following vulnerability has been resolved: forcedeth: fix off-by-one when saving/restoring non-PCI config space nvsuspend and nvresume walk the non-PCI configuration space with for i = 0; i registersize/sizeofu32; i++ which runs one iteration too many. savedconfigspace is...

UBUNTU-CVE-2026-89559

In the Linux kernel, the following vulnerability has been resolved: libnvdimm/labels: Prevent integer overflow in ndlabelvalidate The on-media namespace index field nslot is a u32 read from the DIMM label storage area. ndlabelvalidate bounds it against the config area size, but sizeofnamespacelab...

UBUNTU-CVE-2026-89560

In the Linux kernel, the following vulnerability has been resolved: landlock: Require LANDLOCKACCESSFSMAKEREG for whiteout creation Whiteout objects are used in the upper layer of an OverlayFS to indicate that the file with this name does not exist in the unified view, even if it is present in on...

UBUNTU-CVE-2026-89492

In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate directory-index entry counts when reading metadata ocfs2validatedxleaf and ocfs2validatedxroot check the ECC and signature of an indexed-directory block before it reaches higher-level callers, but neither validato...

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-2026-89464

In the Linux kernel, the following vulnerability has been resolved: power: supply: twl4030charger: cancel workers via devm bci is devm-allocated. Two workers bci-work and bci-currentworker dereference it. twl4030bciremove disables charging and masks interrupts. It cancels neither worker. A worker...

UBUNTU-CVE-2026-80996

In the Linux kernel, the following vulnerability has been resolved: net: l2tp: do not propagate multicast notification errors The tunnel create, tunnel modify, session create, and session modify netlink handlers send multicast notifications through helpers that can fail while allocating or encodi...

CVE-2026-80992

In the Linux kernel, the following vulnerability has been resolved: net: ravb: avoid dereferencing an invalid PTP clock The PTP clock is unavailable before the first open, so querying its index can dereference a NULL pointer. Registration failures can also leave an error pointer in priv-ptp.clock...

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...

CVE-2026-80981

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix use-after-free of the LLC qentry in smcllcsrvaddlink smcllcsrvaddlink keeps addllc pointing into the queue entry: addllc = &qentry-msg.addlink; smcllc.c:1482 ... smcllcsaveaddlinkinfolinknew, addllc; smcllc.c:1494...

CVE-2026-80996

In the Linux kernel, the following vulnerability has been resolved: net: l2tp: do not propagate multicast notification errors The tunnel create, tunnel modify, session create, and session modify netlink handlers send multicast notifications through helpers that can fail while allocating or encodi...

UBUNTU-CVE-2026-89511

In the Linux kernel, the following vulnerability has been resolved: qede: Fix NULL pointer dereference in TPA fragment processing Under memory pressure, the qede driver encounters NULL pointer dereferences when processing TPA continuation fragments. Commit 8a8633978b84 "qede: Add buildskb support...

CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...