UBUNTU-CVE-2026-98483

In the Linux kernel, the following vulnerability has been resolved: nfc: fix use-after-free in nfcgetlocalgeneralbytes Commit 6709d4b7bc2e "net: nfc: Fix use-after-free caused by nfcllcpfindlocal" attempted to fix a use-after-free UAF issue by invoking nfcllcplocalputlocal after accessing local-g...

UBUNTU-CVE-2026-98647

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix divide-by-zero in btfstructwalk When an access goes past the struct and the last member is a flexible array, btfstructwalk folds the offset back into a single element with off - moff % t-size, but never checks that the...

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...

CVE-2026-98433

In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Book3S HV: fix secure device page leak on uvpagein failure In kvmppcsvmpagein, if uvpagein fails after kvmppcuvmemgetpage has succeeded, the secure device page is never released. kvmppcuvmemgetpage sets a bit in...

UBUNTU-CVE-2026-98687

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Reject oversized XDomain properties responses tbxdppropertiesrequest allocates room for 45 data dwords in its 252-byte response buffer. The XDomain length field is six bits wide, however, and a malicious peer can set...

CVE-2026-98804

In the Linux kernel, the following vulnerability has been resolved: net: pagepool: fix use-after-free in pagepoolrecycleringbulk With CONFIGPAGEPOOLSTATS=y, pagepoolrecycleringbulk updates the recycle stats after dropping the producer lock. If it just recycled the last inflight netmems of a pool...

CVE-2026-98626

In the Linux kernel, the following vulnerability has been resolved: bpf: Restrict CO-RE poisoning to relocatable instructions CO-RE relocation records can name any instruction offset. When a relocation cannot be resolved, bpfcorepatchinsn currently poisons its target before checking whether that...

UBUNTU-CVE-2026-98555

In the Linux kernel, the following vulnerability has been resolved: llc: fix skb UAF and leaks on llcmachdrinit failure In llcconnacresendixxxxset0orsendrr, if llcmachdrinit fails, kfreeskbskb is called instead of kfreeskbnskb. This leaks the newly allocated nskb, reads from the freed skb via...

UBUNTU-CVE-2026-98681

In the Linux kernel, the following vulnerability has been resolved: smb: client: split cifsFileInfo bitfields to avoid shared-byte RMW races The invalidHandle, swapfile, oplockbreakcancelled, offload, and statusfiledeleted fields are stored in the same bitfield byte in struct cifsFileInfo, but ar...

UBUNTU-CVE-2026-98745

In the Linux kernel, the following vulnerability has been resolved: arm64/fpsimd: signal: Forbid non-streaming SVE payload on SME-only systems When systemsupportssme is true but systemsupportssve is false, restoring a specifically crafted SVE signal context can result in the task erroneously havi...

UBUNTU-CVE-2026-98501

In the Linux kernel, the following vulnerability has been resolved: HID: alps: fix use-after-free on input2 registration failure alpsinputconfigured stores data-input2 before calling inputregisterdevice. If registration fails, inputfreedevice frees the input device but data-input2 still points to...

ALSA-2026:85321 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: openvswitch: defer tunnel netdevput to RCU release CVE-2026-31678 kernel: xfrm: espintcp: do not reuse an in-progress partial send CVE-2026-52935 kernel: sctp: diag: reject stale...

UBUNTU-CVE-2026-98712

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic: Take a refcount on IRQs referenced by lastlrirq Referencing the last interrupt inserted in an LR is rather fragile, as this interrupt can vanish if a concurrently unmapped LPI. Solve this by bumping up the...

UBUNTU-CVE-2026-98492

In the Linux kernel, the following vulnerability has been resolved: net: macb: fix dmaalloccoherent leak on macballoc error paths Fix 3 leaks in macballoc error paths: - Tx buffer allocated but crossing a 4G boundary: Tx leaked. - Rx buffer allocation fails: Tx leaked. - Rx buffer allocated but...

UBUNTU-CVE-2026-98561

In the Linux kernel, the following vulnerability has been resolved: nfp: hold IPsec RX state under the XArray lock nfpnetipsecrx drops the XArray lock before taking a reference to the xfrmstate it found. The delete path can erase the entry and drop the last state reference in that interval. RX ca...

UBUNTU-CVE-2026-98444

In the Linux kernel, the following vulnerability has been resolved: xfs: drop dquot flush lock when we can't find a buffer to flush LOLLM noticed that xfsqmflushone fails to drop the dquot flush lock if it can't grab the buffer associated with the dquot. Since there's no buffer, nobody else is...

UBUNTU-CVE-2026-98725

In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: fix out-of-bounds write in nvmetauthchallenge nvmetauthchallenge receives its output buffer as a void pointer. sizeofd therefore evaluates to one with GCC and undercounts the fixed challenge header by 15 bytes. A shor...

CVE-2026-98437

In the Linux kernel, the following vulnerability has been resolved: media: qcom: iris: fix runtime PM reference leaks Use pmruntimeresumeandget in irisenablepowerdomains to avoid leaking a runtime PM usage count on failure. Also ensure pmruntimeputsync is always called in irisdisablepowerdomains,...

UBUNTU-CVE-2026-98819

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: validate DDC record lengths Parse DDC record lengths in unsigned storage so 0xFF does not wrap. Reject records smaller than the mandatory three-byte header, records exceeding U8MAX, and records exceeding...

CVE-2026-98531

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: enforce exact attribute length for SEG6ATTRDST In seg6genlpolicy, SEG6ATTRDST is defined with .type = NLABINARY and .len = sizeofstruct in6addr. For NLABINARY, .len only enforces the maximum payload length and permits...