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...

UBUNTU-CVE-2026-98738

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Serialize SMP remote OOB data access buildpairingcmd looks up remote OOB data and copies its contents without holding hdev-lock, which serializes the list's writers. After SMP finds an entry, a concurrent management...

CVE-2026-98733

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: Serialize fragmented ISO packet queueing The fragmented path in hciqueueiso calls skbqueuetail without holding conn-dataq.lock. The socket lock serializes senders, but the transmit worker can concurrently remo...

CVE-2026-98455

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: fix NULL dereference of dlc-session in RFCOMMCONNINFO The RFCOMMCONNINFO getsockopt handler accepts a socket that is not connected as long as deferred setup is enabled: if sk-skstate != BTCONNECTED &&...

UBUNTU-CVE-2026-98455

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: fix NULL dereference of dlc-session in RFCOMMCONNINFO The RFCOMMCONNINFO getsockopt handler accepts a socket that is not connected as long as deferred setup is enabled: if sk-skstate != BTCONNECTED &&...

UBUNTU-CVE-2026-98456

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix race in readunconfindexlist readunconfindexlist counts unconfigured controllers before allocating its response, then checks the device flags again while filling it. hcidevlistlock stabilizes list membership,...

UBUNTU-CVE-2026-98736

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: Lock parent access during enhanced SCO setup Bluetooth: hciconn: Lock parent access during enhanced SCO setup hcienhancedsetupsync runs on the request workqueue without the hcidevlock held by its caller when...

UBUNTU-CVE-2026-98809

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: don't drain cmdsync backlog on unregister hciunregisterdev disables cmdwork and cmdtimer, then calls hcicmdsyncclear, whose cancelworksync waits for hcicmdsyncwork to return. That worker dequeues and runs ever...

UBUNTU-CVE-2026-98461

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisock: validate event length before filtering isfilteredpacket reads the event code from skb-data0 without first checking that the skb is nonempty. When an opcode filter is configured, it also reads the command opcod...

UBUNTU-CVE-2026-98600

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: Reject short EA=0 frames in rfcommrecvframe While rfcommrecvframe verifies that skb-len is at least sizeofhdr + 1 4 bytes: 3-byte header + 1-byte FCS, an RFCOMM frame with an extended 2-byte length field...

UBUNTU-CVE-2026-98735

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: Serialize ACL scheduling with channel deletion hcichansent selects a channel under RCU but drops the read lock before accessing chan-conn and returning the channel. The ACL and LE schedulers then use its packe...

UBUNTU-CVE-2026-98737

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Fix inquiry cache use-after-free The sync command worker holds hdev-reqlock, but inquiry-cache updates and flushes use hdev-lock. Both hciaclcreateconnsync and hcistopdiscoverysync look up entries and read the...

UBUNTU-CVE-2026-98459

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: balance the parent hold in hcibindbis hciconnlink takes a lifetime reference to its parent with hciconnget, but only takes an operational hold on the child. hciconnunlink later balances both a hold and a reference...

CVE-2026-98600

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: Reject short EA=0 frames in rfcommrecvframe While rfcommrecvframe verifies that skb-len is at least sizeofhdr + 1 4 bytes: 3-byte header + 1-byte FCS, an RFCOMM frame with an extended 2-byte length field...

CVE-2026-98461

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisock: validate event length before filtering isfilteredpacket reads the event code from skb-data0 without first checking that the skb is nonempty. When an opcode filter is configured, it also reads the command opcod...

CVE-2026-98738

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Serialize SMP remote OOB data access buildpairingcmd looks up remote OOB data and copies its contents without holding hdev-lock, which serializes the list's writers. After SMP finds an entry, a concurrent management...

CVE-2026-98736

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: Lock parent access during enhanced SCO setup Bluetooth: hciconn: Lock parent access during enhanced SCO setup hcienhancedsetupsync runs on the request workqueue without the hcidevlock held by its caller when...

CVE-2026-98602

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control fallthrough Fix multiple out-of-bounds reads in Bluetooth BNEP frame processing: 1. In bneprxframe and bnepctrlframe net/bluetooth/bnep/core.c, use...

CVE-2026-98735

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: Serialize ACL scheduling with channel deletion hcichansent selects a channel under RCU but drops the read lock before accessing chan-conn and returning the channel. The ACL and LE schedulers then use its packe...

CVE-2026-98739

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: Fix initial port reference race For RFCOMMRELEASEONHUP devices, rfcommttyinstall and rfcommreleasedev both use RFCOMMTTYOWNED to decide who drops the initial ttyport reference. The release path tests the bit...