UBUNTU-CVE-2026-98751

In the Linux kernel, the following vulnerability has been resolved: tty: abort break signalling on hangup The break ioctls can race with hangup and end up calling into a tty driver for a device that is already gone or powered down. Drivers must handle this race, but TCSBRK and TCSBRKP should stil...

UBUNTU-CVE-2026-98686

In the Linux kernel, the following vulnerability has been resolved: smb: client: discard post-EOF pagecache when extending a file via zero range smb3zerorange removed the pagecache only for the range being zeroed, so when it extends the file the folio straddling the old EOF - which may hold data...

UBUNTU-CVE-2026-98707

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: shut down RX BA session timer on teardown Tearing down an RX BA session can leave the session timer queued on a freed tidrx. Later timer-wheel processing and the timer callback itself then run against freed memory...

UBUNTU-CVE-2026-98696

In the Linux kernel, the following vulnerability has been resolved: USB: serial: fix driver deregistration order USB serial driver modules register one driver for the USB bus and one or more drivers for the ports on the USB serial bus. When unloading a driver module, the USB driver must be...

UBUNTU-CVE-2026-98706

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: drain PS delivery work during station teardown Removing an AP or mesh station can notify the driver and wake TXQs after the station has already been removed from the driver, and can update numstaps and the...

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-2026-98586

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...

UBUNTU-CVE-2026-98732

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: fix buffer over-read in btintelhwerror The "Exception info %s" print uses skb-data + 1, but the 12-byte payload is not guaranteed to be NUL-terminated and can be read past its end. Bound the print with "%.s" a...

UBUNTU-CVE-2026-98750

In the Linux kernel, the following vulnerability has been resolved: tty: fix saved termios reset race Resetting saved termios state on device registration is needed where a minor number can be reused for an entirely different device and where the old settings may prevent the port from even being...

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,...

CVE-2026-98582

In the Linux kernel, the following vulnerability has been resolved: nfc: st21nfca: validate received frame size st21nfcahcii2crepack trims a received frame at its EOF marker before removing byte stuffing. It then assumes the truncated frame contains the LLC header and two CRC bytes, and it...

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-2026-98577

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-2026-98482

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: drop truncated I/RR/RNR PDUs in nfcllcprecvhdlc nfcllcprecvhdlc reads the sequence byte skb-data2, via nfcllcpns/nfcllcpnr, before any length check. The receive path only guarantees the two-byte LLCP header --...

CVE-2026-98578

In the Linux kernel, the following vulnerability has been resolved: nfc: st21nfca: validate ISO15693 inventory length The ISO15693 inventory helper removes a two-byte prefix without checking that it exists, then accepts a one-byte remainder before reading data1 as the DSFID. Require the prefix an...

CVE-2026-98573

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: fix pull-bound underflow in skbchecksumsetupipv6 skbmaybepulltail subtracts skbheadlenskb from the unsigned max argument and passes the result to pskbpulltail as a signed int. The function does not ensure that max is...

CVE-2026-98581

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: Fix list corruption / refcount desync in nfcllcprecvdm nfcllcprecvdm handles DMNOBOUND/DMREJ for a socket that is still linked on local-connectingsockets: it looks the socket up with nfcllcpconnectingsockget, sets...

CVE-2026-98583

In the Linux kernel, the following vulnerability has been resolved: nfc: nfcmrvl: validate helper command length before pull The firmware download receive path removes the NCI data header and reads the helper command before validating the remaining packet length. A short frame can therefore reach...

CVE-2026-98764

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Fix NULL pointer dereference in FUNCTIONFSENDPOINTDESC When user space sets up FunctionFS with only full-speed descriptors e.g., flags = FUNCTIONFSHASFSDESC and the gadget operates at a higher speed such as...

CVE-2026-98822

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: prevent AP VLAN tx from other interfaces Since the station lookup was factored out of ieee80211buildhdr, ieee80211lookuprasta uses stainfogetbss for all AP and AP VLAN frames, not only for control port frames. A...