CVE-2026-64289

In the Linux kernel, the following vulnerability has been resolved: iommufd: Set upper bounds on cache invalidation entrynum and entrylen iommufdhwptinvalidate takes a user-controlled entrynum and entrylen, each bounded only by U32MAX. An entrylen beyond the kernel's struct size makes the copy...

UBUNTU-CVE-2026-64269

In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdmawritesg When the server answers an RTRS READ, rdmawritesg builds the source scatter/gather entry for the IBWRRDMAWRITE that returns data to the peer. Its length is taken...

UBUNTU-CVE-2026-64361

In the Linux kernel, the following vulnerability has been resolved: hfs/hfsplus: fix u32 overflow in checkandcorrectrequestedlength checkandcorrectrequestedlength compares off + len against nodesize using u32 arithmetic. When the caller passes a large len value e.g. from an underflowed subtractio...

UBUNTU-CVE-2026-64296

In the Linux kernel, the following vulnerability has been resolved: exfat: bound uniname advance in exfatfinddirentry In exfatfinddirentry, each TYPEEXTEND file name entry advances the output pointer by a fixed amount while the loop guard only tracks the accumulated name length: if ++order == 2...

CVE-2026-64412

In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: module names must be null-terminated We need to explicitly check the length, else we may pass non-null terminated string to requestmodule...

UBUNTU-CVE-2026-64257

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject overlapping data areas in SMB2 responses Commit 53b7c271f06b "smb: client: restrict implied bcc0 exemption to responses without data area" restricted the implied bcc0 length exception to responses without a da...

UBUNTU-CVE-2026-64268

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: bound Read Response placement to the RREAD length In drivers/infiniband/sw/siw/siwqprx.c, siwprocrresp places each inbound Read Response DDP segment at sge-laddr + wqe-processed and then accumulates wqe-processed, but i...

UBUNTU-CVE-2026-64400

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent path traversal bypass by restricting caseless retry ksmbdvfspathlookup enforces LOOKUPBENEATH to restrict path resolution within the share root. When a crafted path attempts to escape the share boundary using...

UBUNTU-CVE-2026-64436

In the Linux kernel, the following vulnerability has been resolved: net: afkey: initialize algkeylen for IPComp states pfkeymsg2xfrmstate handles the IPComp SADBXSATYPEIPCOMP case by allocating x-calg and copying only the algorithm name: x-calg = kmallocobjx-calg; if !x-calg err = -ENOMEM; goto...

UBUNTU-CVE-2026-64445

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix WEP length underflow and OOB read in OnAuth OnAuth has two bugs in the shared-key authentication path. When the Privacy bit is set, rtwwepdecrypt is called without verifying that the frame is long enough t...

CVE-2026-64280

In the Linux kernel, the following vulnerability has been resolved: fpga: dfl-afu: validate DMA mapping length in afudmamapregion afuioctldmamap accepts a 64-bit length from userspace via DFLFPGAPORTDMAMAP ioctl without an upper bound check. The value is passed to afudmapinpages where npages is...

UBUNTU-CVE-2026-64505

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: function: rndis: add length check for header Add a length check for the rndis header in rndisrmhdr, to ensure that MessageType, MessageLength, DataOffset, and DataLength fields are present before they are accessed...

CVE-2026-64296

In the Linux kernel, the following vulnerability has been resolved: exfat: bound uniname advance in exfatfinddirentry In exfatfinddirentry, each TYPEEXTEND file name entry advances the output pointer by a fixed amount while the loop guard only tracks the accumulated name length: if ++order == 2...

UBUNTU-CVE-2026-64323

In the Linux kernel, the following vulnerability has been resolved: udf: validate VAT header length against the VAT inode size udfloadvat takes the virtual partition's start offset straight from the on-disk VAT 2.0 header without checking it against the VAT inode size:...

CVE-2026-64322

In the Linux kernel, the following vulnerability has been resolved: udf: validate sparing table length as an entry count, not a byte count udfloadsparablemap accepts a sparing table when sizeofst + le16tocpust-reallocationTableLen sb-sblocksize is false, i.e. it treats reallocationTableLen as a...

CVE-2026-64440

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB write in HTcapshandler HTcapshandler iterates pIE-length bytes and writes into HTcaps.u.HTcap, which is a fixed 26-byte array sizeof struct HTcapselement. Because pIE-length is a raw u8 from an...

UBUNTU-CVE-2026-64267

In the Linux kernel, the following vulnerability has been resolved: fuse: avoid 32-bit prune notification count wrap FUSENOTIFYPRUNE validates the nodeid payload length with: size - sizeofoutarg != outarg.count sizeofu64 On 32-bit kernels, sizet is also 32 bits, so the daemon-controlled count...

UBUNTU-CVE-2026-64289

In the Linux kernel, the following vulnerability has been resolved: iommufd: Set upper bounds on cache invalidation entrynum and entrylen iommufdhwptinvalidate takes a user-controlled entrynum and entrylen, each bounded only by U32MAX. An entrylen beyond the kernel's struct size makes the copy...

CVE-2026-64505

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: function: rndis: add length check for header Add a length check for the rndis header in rndisrmhdr, to ensure that MessageType, MessageLength, DataOffset, and DataLength fields are present before they are accessed...

CVE-2026-64505

The CVE-2026-64505 entry concerns the Linux kernel USB gadget rndis function. The identified issue involved missing validation of the rndis header fields (MessageType, MessageLength, DataOffset, DataLength) before access. According to the description and linked references, a fix was implemented b...