UBUNTU-CVE-2026-90176

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Do not skip lock checks for single-byte ranges checklockrange uses inclusive ranges. Its callers pass the end offset as start + length - 1, so start == end represents a valid single-byte range rather than an empty range. T...

UBUNTU-CVE-2026-93054

In the Linux kernel, the following vulnerability has been resolved: uio: Fix stale info pointer in failed registration path After deviceadd, the UIO device is visible to userspace and /dev/uioX can be opened. If a later setup step fails, uioregisterdevice unwinds the device but leaves idev-info...

UBUNTU-CVE-2026-92512

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix use after free in ibqueryqp When querying a QP via the netlink flow the only synchronization mechanism for the said QP is rdmarestrackget, meanwhile during the QP destroy path rdmarestrackdel is called at the end o...

UBUNTU-CVE-2026-90214

In the Linux kernel, the following vulnerability has been resolved: ASoC: xilinx: formatterpcm: fix streamdata leak on open error In xlnxformatterpcmopen, streamdata is allocated and adata-playstream or adata-capturestream is assigned early. If a later step, such as sndpcmhwconstraintstep or...

UBUNTU-CVE-2026-90221

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: fix use of uninitialized memory in COREINITRSP parsing ncicoreinitrsppacketv1 and ncicoreinitrsppacketv2 parse the COREINITRSP packet without validating that the skb contains enough data. A malformed response e.g...

UBUNTU-CVE-2026-90166

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix null-ptr-deref in ksmbdipctreeconnectrequest See the procedure below: ksmbdtreeconnconnect ksmbdshareconfigget share-name = kstrdup // fail if !testshareconfigflagshare, KSMBDSHAREFLAGPIPE // false // do not check...

UBUNTU-CVE-2026-90191

In the Linux kernel, the following vulnerability has been resolved: mailbox: riscv-sbi-mpxy: validate RPMI notification lengths The SBI return value controls how many bytes are copied from shared memory into the RPMI notification buffer. It is not validated against the negotiated shared-memory si...

UBUNTU-CVE-2026-90098

In the Linux kernel, the following vulnerability has been resolved: net: sparx5: fix sleep in atomic context in MAC table access sparx5setrxmode runs with netifaddrlockbh held and iterates dev-mc via devmcsync, which per address calls sparx5mcsync / sparx5mcunsync - sparx5mactlearn /...

UBUNTU-CVE-2026-90148

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix incorrect argument passed to nfs4deletelease in nfs4addlease When nfs4addlease races with a delegation return, it calls nfs4deletelease to clean up. Previously, it passed priv, which can legitimately be NULL. Passing a...

UBUNTU-CVE-2026-90161

In the Linux kernel, the following vulnerability has been resolved: erofs: fix interlaced ztailpacking pclusters On-disk sizes of interlaced pclusters should be block-aligned, and ztailpacking interlaced pclusters should be invalid at all. Currently, mkfs.erofs won't generate any interlaced...

UBUNTU-CVE-2026-90237

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: move custom expectation support to helper Originally, the ct expectation support called nfcthelperextadd for confirmed conntracks, which is invalid, triggering a splat. This was fixed by commit 1710eb913bdc...

UBUNTU-CVE-2026-90130

In the Linux kernel, the following vulnerability has been resolved: vdpasim: fix cleanup after worker creation failure vdpasimcreate leaves vdpasim-worker as an ERRPTR when kthreadrunworker fails. The error path then drops the device reference, which releases the partially initialized simulator...

UBUNTU-CVE-2026-92505

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix undefined behavior in devidwrite debugfs function When foreachpcisegment loop completes without finding a matching segment, the pciseg pointer is not NULL but points to an invalid memory location the list head...

UBUNTU-CVE-2026-90200

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: fix integer overflow in MFT cluster validation In ntfsinitfromboot, the boot sector's MFT cluster numbers are validated against the volume size with: if mlcn sctperclst = sectors || mlcn2 sctperclst = sectors goto out;...

UBUNTU-CVE-2026-90414

In the Linux kernel, the following vulnerability has been resolved: IB/isert: reject PDUs declaring more data than was received isertrecvdone hands each received PDU to the opcode handlers without ever looking at wc-bytelen, the number of bytes the HCA actually placed in the receive descriptor. T...

UBUNTU-CVE-2026-93044

In the Linux kernel, the following vulnerability has been resolved: bpf: Disallow interpreter fallback for arena-related insns Since the interpreter does not support the arena-related insns, interpreter fallback should not be allowed for these insns in core.c::bpfprogselectruntime. Currently, whe...

UBUNTU-CVE-2026-90409

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Add vmbind region with kbo range overlap check When a VM is created, caller has to specify the range of the address space carve-out set aside for mapping kernel BO's. That means vmbind mappings of UM-exposed BO's...

UBUNTU-CVE-2026-90323

In the Linux kernel, the following vulnerability has been resolved: ublk: validate auto buf reg before taking uringcmd With UBLKFAUTOBUFREG, invalid sqe-addr can fail after ublkfilliocmd has set UBLKIOFLAGACTIVE. The uringcmd is completed while the tag stays active, which can hang teardown. Split...

UBUNTU-CVE-2026-90374

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: validate RX bandidx before dereferencing phys bandidx comes from a 2-bit descriptor field 0-3 and was used directly to index dev-mt76.phys size MTMAXBAND == 3 and dereference the result. A corrupt or reserved...

UBUNTU-CVE-2026-90324

In the Linux kernel, the following vulnerability has been resolved: ublk: check importubuf return value importubuf can fail if the address range provided by the userspace ublk server is outside the allowed user address space. Return that 0 bytes were copied if importubuf fails rather than passing...