CVE-2026-72336

CVE-2026-72336 — Linux kernel, Bluetooth 6lowpan L2CAP hold across debugfs control Root cause: get_l2cap_conn() looks up an LE hci_conn under hdev protection, then drops protection before reading hcon->l2cap_data and before lowpan_control_write() dereferences conn->hcon, allowing a disconne...

CVE-2026-72334

Summary: CVE-2026-72334 affects the Linux kernel Bluetooth ISO handling. The issue arises from malformed ISO_END/ISO_CONT packets not being excluded by the Core spec, which can leak memory and trigger panics. The documented scenarios include: ISO_START with rx_len=4, ISO_CONT skb->len=4, ISO_S...

CVE-2026-72335 Bluetooth: MGMT: Fix adv monitor add failure cleanup

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix adv monitor add failure cleanup hciaddadvmonitor publishes a new advmonitor in hdev-advmonitorsidr before the powered MSFT setup step. The MSFT offload add path can then fail either locally before the...

EUVD-2026-59233

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix malformed ISOEND/CONT handling Core specification Part C vol 4 sec 5.4.5 does not exclude empty ISOCONT, ISOEND packets. We currently reject them if they are last. If controller sends malformed sequence ISOSTA...

EUVD-2026-59234

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix adv monitor add failure cleanup hciaddadvmonitor publishes a new advmonitor in hdev-advmonitorsidr before the powered MSFT setup step. The MSFT offload add path can then fail either locally before the...

CVE-2026-72334 Bluetooth: ISO: fix malformed ISO_END/CONT handling

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix malformed ISOEND/CONT handling Core specification Part C vol 4 sec 5.4.5 does not exclude empty ISOCONT, ISOEND packets. We currently reject them if they are last. If controller sends malformed sequence ISOSTA...

CVE-2026-72335 Bluetooth: MGMT: Fix adv monitor add failure cleanup

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix adv monitor add failure cleanup hciaddadvmonitor publishes a new advmonitor in hdev-advmonitorsidr before the powered MSFT setup step. The MSFT offload add path can then fail either locally before the...

CVE-2026-72335

CVE-2026-72335 — Linux kernel Bluetooth MGMT fix : The vulnerability is in the MGMT path used by the Bluetooth HCI management code when adding a new adv_monitor. In hci_add_adv_monitor, an adv_monitor is published in hdev->adv_monitors_idr before the powered MSFT offload setup. If the MSFT add...

CVE-2026-72334 Bluetooth: ISO: fix malformed ISO_END/CONT handling

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix malformed ISOEND/CONT handling Core specification Part C vol 4 sec 5.4.5 does not exclude empty ISOCONT, ISOEND packets. We currently reject them if they are last. If controller sends malformed sequence ISOSTA...

CVE-2026-72333

CVE-2026-72333 concerns a Linux kernel Bluetooth L2CAP TX identifier leak. The fix was to adjust ident allocation to use an IDA and ensure idents are released when responses arrive, but identifiers allocated for commands without responses (notably LE CREDITS) were not released, allowing exhaustio...

CVE-2026-72333 Bluetooth: L2CAP: fix tx ident leak for commands without a response

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix tx ident leak for commands without a response Commit 6c3ea155e5ee "Bluetooth: L2CAP: Fix not tracking outstanding TX ident" changed ident allocation to use an IDA, releasing idents in l2capputident when the...

CVE-2026-72333 Bluetooth: L2CAP: fix tx ident leak for commands without a response

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix tx ident leak for commands without a response Commit 6c3ea155e5ee "Bluetooth: L2CAP: Fix not tracking outstanding TX ident" changed ident allocation to use an IDA, releasing idents in l2capputident when the...

CVE-2026-68479

CVE-2026-68479 affects the Linux kernel Bluetooth stack, specifically the btrtl driver. The vulnerability stems from rtlbt_parse_firmware() copying patch_length - 4 bytes before appending the firmware version. A malformed firmware patch shorter than the version field can cause an underflow, turni...

CVE-2026-68479 Bluetooth: btrtl: validate firmware patch bounds

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btrtl: validate firmware patch bounds rtlbtparsefirmware copies patchlength - 4 bytes before appending the firmware version. A malformed firmware patch shorter than the version field can make this subtraction underflow...

CVE-2026-68479 Bluetooth: btrtl: validate firmware patch bounds

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btrtl: validate firmware patch bounds rtlbtparsefirmware copies patchlength - 4 bytes before appending the firmware version. A malformed firmware patch shorter than the version field can make this subtraction underflow...

EUVD-2026-59101

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btrtl: validate firmware patch bounds rtlbtparsefirmware copies patchlength - 4 bytes before appending the firmware version. A malformed firmware patch shorter than the version field can make this subtraction underflow...

PT-2026-72989

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: hold sk properly in iso conn ready sk deref in iso conn ready 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 iso...

PT-2026-72980

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

PT-2026-72981

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

PT-2026-72962

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 MGMT OP PAIR DEVICE command by walking hdev-mgmt pending. The lookup returned a command that wa...