UBUNTU-CVE-2026-74510

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix UAF in pair command cancellation The pairing completion and authentication failure callbacks look up the pending MGMTOPPAIRDEVICE command by walking hdev-mgmtpending. The lookup returned a command that was...

UBUNTU-CVE-2026-74531

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: hold conn reference in abortconnsync There is theoretical UAF if the conn is freed while the hcisync task is running. Hold refcount to avoid that...

UBUNTU-CVE-2026-74536

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix leaking sk after socket release isosockkill tests !sockflagsk, SOCKZAPPED || sk-sksocket || sockflagsk, SOCKDEAD for early return, but this is always true since sockorphansk sets SOCKDEAD, so the sk reference...

CVE-2026-74528

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hold conn in hcipastsync callback Avoids giving freed pointers to hciconnvalid, which kmalloc may have reused. Hold refcount to avoid that...

CVE-2026-74508

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: reject frames without a transaction header hidprecvctrlframe and hidprecvintrframe read skb-data0 before checking that the L2CAP SDU contains a transaction header. A connected HIDP peer can send an empty basic-mo...

CVE-2026-74507

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: validate numbered report payloads When hidpgetrawreport waits for a numbered report, hidpprocessdata compares the expected report number with skb-data0. A connected HIDP peer can reply with only a DATA transactio...

CVE-2026-74534

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix refcounting of isoconn isoconndel and isochandel have a race that results to double-put of isoconn: Task hdev-workqueue Task 2 isoconndel isochandel isoconnholdunlesszero isoconnlock isoconnlock conn-sk = NULL...

CVE-2026-74539

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: lock sk in isosockgetname Accessing isopisk-conn requires locksock, which is not held here. Fix by adding the lock/release...

UBUNTU-CVE-2026-74541

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: clear isodata always when detaching conn from hcon When setting conn-hcon = NULL, also conn-hcon-isodata = NULL is necessary, otherwise later isoconnfree will UAF. Fix clearing of isodata in isosockdisconn Fixes...

UBUNTU-CVE-2026-74540

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix UAF in l2capleconnectrsp l2capleconnectrsp obtains a channel via l2capgetchanbyident but neither holds a reference nor uses l2capchanholdunlesszero before locking and operating on it. A concurrent l2capchand...

UBUNTU-CVE-2026-74537

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: hold sk properly in isoconnready sk deref in isoconnready must be done either under conn-lock, or holding a refcount, to avoid concurrent close. conn-sk is currently accessed without either: Task 1 Task 2...

CVE-2026-74537

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: hold sk properly in isoconnready sk deref in isoconnready must be done either under conn-lock, or holding a refcount, to avoid concurrent close. conn-sk is currently accessed without either: Task 1 Task 2...

CVE-2026-74529

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hold conn in hciconnectpasync callback There is theoretical UAF if the conn is freed while the hcisync task is running. Hold refcount to avoid that...

CVE-2026-74536

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix leaking sk after socket release isosockkill tests !sockflagsk, SOCKZAPPED || sk-sksocket || sockflagsk, SOCKDEAD for early return, but this is always true since sockorphansk sets SOCKDEAD, so the sk reference...

CVE-2026-74540

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix UAF in l2capleconnectrsp l2capleconnectrsp obtains a channel via l2capgetchanbyident but neither holds a reference nor uses l2capchanholdunlesszero before locking and operating on it. A concurrent l2capchand...

CVE-2026-74531

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: hold conn reference in abortconnsync There is theoretical UAF if the conn is freed while the hcisync task is running. Hold refcount to avoid that...

UBUNTU-CVE-2026-74508

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: reject frames without a transaction header hidprecvctrlframe and hidprecvintrframe read skb-data0 before checking that the L2CAP SDU contains a transaction header. A connected HIDP peer can send an empty basic-mo...

UBUNTU-CVE-2026-74509

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Fix advertising data UAFs hcifindadvinstance returns an advinfo pointer that is valid only while hdev-lock is held. The advertising command-sync paths perform instance lookups without that lock and, in some...

UBUNTU-CVE-2026-74507

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: validate numbered report payloads When hidpgetrawreport waits for a numbered report, hidpprocessdata compares the expected report number with skb-data0. A connected HIDP peer can reply with only a DATA transactio...

UBUNTU-CVE-2026-74529

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hold conn in hciconnectpasync callback There is theoretical UAF if the conn is freed while the hcisync task is running. Hold refcount to avoid that...