UBUNTU-CVE-2026-98821

In the Linux kernel, the following vulnerability has been resolved: block: reject polled dio with user integrity metadata IOCBHASMETADATA leaves iocb-private as a uiometa, while iocbbioiopoll expects a bio. Since 2729a60bbfb9, metadata I/O always uses blkdevdirectIO, which never publishes the bio...

UBUNTU-CVE-2026-98820

In the Linux kernel, the following vulnerability has been resolved: blk-mq: set RQFUSESCHED when the operation is known The cached requests are allocated for one operation but can be handed out for another. A passthrough command has RQFUSESCHED cleared, so using those flags for a subsequent...

UBUNTU-CVE-2026-98752

In the Linux kernel, the following vulnerability has been resolved: tty: port: fix ttyportttyvhangup race Drivers rely on ttyportttyvhangup to synchronously hang up their ports before tearing down resources as part of deregistration e.g. on physical disconnect. If ttyportttyvhangup races with...

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-2026-98750

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-2026-98749

In the Linux kernel, the following vulnerability has been resolved: tty: serial: max3100: shut down timer before freeing port max3100shutdown stops the polling timer but returns early during system suspend. If the SPI device is unbound before resume, the serial core does not call max3100shutdown...

UBUNTU-CVE-2026-98711

In the Linux kernel, the following vulnerability has been resolved: wifi: cw1200: fix TX padding OOB read leaking heap data to device The TX path rounds the transfer size up to the bus alignment alignsize, up to 511 bytes for SDIO, 1 byte for SPI but sends the padded length straight from the fram...

UBUNTU-CVE-2026-98710

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlegacy: 3945: free EEPROM data on remove il3945pciprobe calls ileeprominit, which allocates memory for the EEPROM data. The probe failure paths release this allocation with ileepromfree, but the remove path does not free ...

UBUNTU-CVE-2026-98705

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: account proxy paths against the mesh path limit Proxy-path churn can drive the interface path counter negative and let later mesh path additions exceed MESHMAXMPATHS. meshpathfreercu decrements the interface mpath...

UBUNTU-CVE-2026-98704

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: keep fallback association elements alive Associating to a non-transmitted MBSSID profile reads freed memory while determining the operating channel and applying HT capabilities. When an association response omits...

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-2026-98706

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-2026-98701

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: release mesh path quota on failed additions Repeated failed or duplicate mesh path additions can exhaust MESHMAXMPATHS while the path table holds fewer paths, which stops new paths to reachable destinations from...

UBUNTU-CVE-2026-98703

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: minstrelht: validate fixed rate index The fixedrateidx debugfs file is a plain u32 attribute, so any value can be written to it. minstrelhtupdatestats then copies the value into mi-maxtprate and mi-maxprobrate, an...

UBUNTU-CVE-2026-98702

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: reject invalid 320 MHz CSA bandwidth The HT/VHT channel definition validator can receive a 320 MHz bandwidth indication from a received CSA frame on a non-6 GHz link. It warns for this unsupported width but...

UBUNTU-CVE-2026-98755

In the Linux kernel, the following vulnerability has been resolved: tty: vcc: zero-initialize control packet in vccsendctl The stack-allocated struct viovcc pkt was partially initialized, leaving the tag.stypeenv field uninitialized before being sent via ldcwrite, potentially leaking kernel stack...

UBUNTU-CVE-2026-98754

In the Linux kernel, the following vulnerability has been resolved: tty: vcc: hold port lock when clearing tty pointer in vcccleanup vcccleanup sets port-tty to NULL without holding port-lock, racing with vccevent LDC callbacks that read port-tty under port-lock and then use tty-port. This can...

UBUNTU-CVE-2026-98753

In the Linux kernel, the following vulnerability has been resolved: tty: ttyport: restore TTYIOERROR on activation failure Make sure to restore the TTYIOERROR flag if activation fails to prevent I/O attempts on a port that is gone or powered down. This specifically avoids issues like kernel panic...

UBUNTU-CVE-2026-98698

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: handle empty FILS association request payload filsencryptassocreq accepts a ReAssociation Request frame whose last element is the FILS Session element. cryptlen is then zero and aessivencrypt is called with an emp...

UBUNTU-CVE-2026-98697

In the Linux kernel, the following vulnerability has been resolved: USB: serial: fix dynamic id driver deregistration race Only free the dynamic ids after having deregistered the driver and removed the "newid" attribute to avoid leaking any id added by a racing write to the attribute...