CVE-2026-98550

In the Linux kernel, the following vulnerability has been resolved: tipc: reject invalid and unexpected GRPACKMSG to prevent bcackers underflow Commit 48a5fe38772b "tipc: fix bcackers underflow on duplicate GRPACKMSG" rejected duplicate/stale ACKs in tipcgroupprotorcv by returning early when...

UBUNTU-CVE-2026-98861

In the Linux kernel, the following vulnerability has been resolved: fprobe: Use guardrcuschednotrace and check rcuiswatching unregisterfprobe and unregisterfprobeasync used by BPF kprobe-multi rely on standard RCU grace periods synchronizercu and callrcu to wait until in-flight fprobe handlers...

UBUNTU-CVE-2026-98634

In the Linux kernel, the following vulnerability has been resolved: scsi: sdzbc: Reject disks with too many zones sdzbcreadzones computes the number of zones with 64-bit arithmetic and stores the result in the unsigned int nrzones field of struct zoneddiskinfo, silently truncating counts that...

UBUNTU-CVE-2026-98577

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix WKS SAP hijacking via prefix match in nfcllcpwkssap nfcllcpwkssap compares only servicenamelen bytes, so a short servicename like "u" matches longer WKS strings like "urn:nfc:sn:snep". Fix by requiring exact length...

UBUNTU-CVE-2026-98717

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Bail from shadow walks if the root is invalid or a dummy When walking shadow page tables, immediately terminate the walk if the root is a "dummy" root, i.e. a root whose top-level page table is backed by the zero...

UBUNTU-CVE-2026-98778

In the Linux kernel, the following vulnerability has been resolved: binder: fix isfailure flag for superseded transaction cleanup When a TFUPDATETXN transaction supersedes a pending async transaction, binderreleaseentirebuffer is called with isfailure=false. Since the superseded transaction was...

UBUNTU-CVE-2026-98646

In the Linux kernel, the following vulnerability has been resolved: tcp: Skip condresched in inetcsklistenstop under BPF context bpfsockdestroy runs from the tcp iterator, under rcureadlock. If the sock is a listener that still has children in its accept queue, tcpabort ends up in inetcsklistenst...

UBUNTU-CVE-2026-98722

In the Linux kernel, the following vulnerability has been resolved: mtd: block2mtd: Fix divide error when erasesize is zero The erase size is parsed from the "block2mtd" module parameter and can be set to zero. adddevice then evaluates if size % erasesize with a zero divisor, which triggers a...

UBUNTU-CVE-2026-98783

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Add missing ISERR check for ovladaptor platform device platformdeviceregisterdata can fail and return an ERRPTR, but the return value is used without checking, leading to an invalid pointer being stored in ddpcomp.d...

UBUNTU-CVE-2026-98772

In the Linux kernel, the following vulnerability has been resolved: USB: serial: fix port tear down use-after-free Some drivers for multiport devices access port driver data from completion handlers of shared URBs submitted at attach or first open and stopped at disconnect or last close,...

UBUNTU-CVE-2026-98790

In the Linux kernel, the following vulnerability has been resolved: perf: Fix race between perfeventexittask and perfpendingtask A race condition exists between perfeventexittask and perfpendingtask during beginnewexec. During beginnewexec, perfeventexittask may be called, and the PFEXITING flag ...

UBUNTU-CVE-2026-98792

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: generalize pending status bit Rename NFFLOWHWPENDING to NFFLOWPENDING and use it to inhibit the flowtable GC worker until pending hw offload work has been completed. Apparently, nfflowoffloadstats can schedu...

UBUNTU-CVE-2026-98860

In the Linux kernel, the following vulnerability has been resolved: HID: bpf: cast size to ssizet when checking hidbpfhwrequest As reported by Sashiko: If a transport driver encounters a hardware error and returns a negative error code such as -EPIPE, ret is implicitly promoted to sizet when...

UBUNTU-CVE-2026-98729

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Don't apply vaalign to hugetlb mappings on AMD F15h getalignmask returns hugepagemaskalign for hugetlbfs, but getalignbits adds vaalign.bits regardless, so vmunmappedarea returns an address off the huge page boundary and...

UBUNTU-CVE-2026-98780

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix IP instance memory leak on kobject add failure amdgpudiscoverysysfsips allocates iphwinstance with kzallocflex and initializes its embedded kobject before calling kobjectadd. If kobjectadd fails, the return value ...

CVE-2026-98729

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Don't apply vaalign to hugetlb mappings on AMD F15h getalignmask returns hugepagemaskalign for hugetlbfs, but getalignbits adds vaalign.bits regardless, so vmunmappedarea returns an address off the huge page boundary and...

CVE-2026-98767

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: gadget: fix IRQ storm on invalid event buffer count When dwc3checkeventbuf reads a GEVNTCOUNT value exceeding the event buffer length, commit 63ccd26cd1f6 "usb: dwc3: gadget: check that event count does not exceed even...

CVE-2026-98586

In the Linux kernel, the following vulnerability has been resolved: sctp: hold asoc or transport before modtimer in timer handlers Take the association or transport reference before rearming a timer in the timer handlers. The existing code calls modtimer before taking the reference needed by the...

CVE-2026-98790

In the Linux kernel, the following vulnerability has been resolved: perf: Fix race between perfeventexittask and perfpendingtask A race condition exists between perfeventexittask and perfpendingtask during beginnewexec. During beginnewexec, perfeventexittask may be called, and the PFEXITING flag ...

CVE-2026-98449

In the Linux kernel, the following vulnerability has been resolved: smb: client: delete compound mids on send failure before unlock When sending a compound request fails, smbsendrqst kicks off a reconnect. compoundsendrecv still has those mids on pendingmidq, but it unlocks the server without...