UBUNTU-CVE-2026-64459

In the Linux kernel, the following vulnerability has been resolved: tcp: restore RCU grace period in tcpaodestroysock Commit 51e547e8c89c "tcp: Free TCP-AO/TCP-MD5 info/keys without RCU" removed the callrcu callback from tcpaodestroysock, arguing that "the destruction of info/keys is delayed unti...

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...

CVE-2026-64473

In the Linux kernel, the following vulnerability has been resolved: vfio: Remove device debugfs before releasing devres VFIO device debugfs files created with debugfscreatedevmseqfile store a devres allocated debugfsdevmentry as inode private data. vfiounregistergroupdev currently calls...

UBUNTU-CVE-2026-64354

In the Linux kernel, the following vulnerability has been resolved: bpf: Validate BTF repeated field counts before expansion btfparsestructmetas walks user-supplied BTF during BPFBTFLOAD, and btfrepeatfields expands repeatable fields from array elements into the fixed BTFFIELDSMAX scratch array...

UBUNTU-CVE-2026-64431

In the Linux kernel, the following vulnerability has been resolved: ntfs: avoid calling postwritemstfixup for invalid indexblock ntfsicxibsyncwrite calls postwritemstfixup when ntfsibwrite returns an error, intending to restore the buffer after a failed write. However, ntfsibwrite returns an erro...

UBUNTU-CVE-2026-64349

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: fix dwc3readl and dwc3writel calls in dwc3ulpisetup The dwc3ulpisetup calls the register read and write calls with dwc3-regs when both these calls take the dwc3 structure directly. Chnage these two calls to fix the...

EUVD-2026-49039

In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: validate VMBus packet size in receive callback hypervreceivesub reads msg-vidhdr.type and dispatches into one of four message-type branches without knowing how many bytes the host wrote into hv-recvbuf. The completion...

CVE-2026-64527

In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: validate VMBus packet size in receive callback hypervreceivesub reads msg-vidhdr.type and dispatches into one of four message-type branches without knowing how many bytes the host wrote into hv-recvbuf. The completion...

CVE-2026-64491

In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: us144mkii: fix work UAF on disconnect tascamdisconnect cancels capturework and midiinwork before usbkillanchoredurbs kills the capture/MIDI-in URBs. Those URBs self-resubmit, and their completion handlers reschedule...

CVE-2026-64487 ALSA: caiaq: fix out-of-bounds read in the Traktor Kontrol S4 input parser

In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: fix out-of-bounds read in the Traktor Kontrol S4 input parser sndusbcaiaqtks4dispatch decodes the Traktor Kontrol S4 input stream in fixed 16-byte TKS4MSGBLOCKSIZE message blocks. On every iteration it advances buf a...

CVE-2026-64477

CVE-2026-64477 affects Linux kernel (x86, fs/resctrl) where offlining a CPU with SNC enabled can trigger an out-of-bounds access. The root cause is that when a monitoring domain’s cpu_mask becomes empty, the NUMA node lookup uses nr_cpu_ids, leading to out-of-bounds during RMID reading. The mitig...

EUVD-2026-48821

In the Linux kernel, the following vulnerability has been resolved: x86,fs/resctrl: Prevent out-of-bounds access while offlining CPU when SNC enabled The architecture updates the cpumask in a domain's header to track which online CPUs are associated with the domain. When this mask becomes empty t...

CVE-2026-64475

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Release the VGA arbiter client on registerdevice failure The re-order in the Fixes commit below displaced vfiopcivgainit as the last failure point of what is now vfiopcicoreregisterdevice without introducing an unwind f...

EUVD-2026-48800

In the Linux kernel, the following vulnerability has been resolved: hwrng: virtio: clamp device-reported used.len at copydata randomrecvdone stores the device-reported used.len directly into vi-dataavail. copydata then indexes vi-data using vi-dataidx advanced by previous copydata calls and issue...

CVE-2026-64453

CVE-2026-64453 affects the Linux kernel USB subsystem (usbio) where usbio_disconnect() could use a freed object while iterating the usbio->cli_list in reverse during client teardown, leading to slab-use-after-free (KASAN) reported in the vulnerability validation. The root cause is iterating wi...

EUVD-2026-48796

In the Linux kernel, the following vulnerability has been resolved: 6lowpan: fix NHC entry use-after-free on error path lowpannhcdouncompression looks up an NHC descriptor while holding lowpannhclock. If the descriptor has no uncompress callback, the error path drops the lock before printing...

CVE-2026-64450

CVE-2026-64450: In Linux kernel TIPC, a broadcast Gap ACK blocks record could be read out-of-bounds due to a missing check that the record fits in the message data area. The bug occurs when tipc_get_gap_ack_blks() validates the len against ugack/bgack counts but not msg_data_sz(), allowing a reco...

CVE-2026-64450 tipc: fix out-of-bounds read in broadcast Gap ACK blocks

In the Linux kernel, the following vulnerability has been resolved: tipc: fix out-of-bounds read in broadcast Gap ACK blocks A broadcast PROTOCOL/STATEMSG can carry a Gap ACK blocks record in its data area. tipcgetgapackblks only verifies that the record's len field is self-consistent with its...

CVE-2026-64449 staging: vme_user: bound slave read/write to the kern_buf size

In the Linux kernel, the following vulnerability has been resolved: staging: vmeuser: bound slave read/write to the kernbuf size The SLAVE-path helpers buffertouser and bufferfromuser copy 'count' bytes into/out of the fixed-size kernbuf sizebuf == PCIBUFSIZE == 0x20000, 128 KiB using ppos as the...

CVE-2026-64446 staging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set_wpa_ie()

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix heap buffer overflow in rtwcfg80211setwpaie supplicantie is a 256-byte array in struct securitypriv. The WPA and WPA2 IE copy paths use: memcpypadapter-securitypriv.supplicantie, &pwpa0, wpaielen + 2; wher...