kernel: Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync

A flaw was found in the Linux kernel’s Bluetooth subsystem HCI. Specifically, in the function hciaclcreateconnsync and related path hcilecreateconnsync, a connection object in state BTOPEN that is still pending command submission may be freed prematurely, leading to a use-after-free condition. An...

SUSE-SU-2026:3130-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP7 RT kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2023-20585: iommu/amd: Use maximum Event log buffer size when SNP is enabled on Family 0x19 bsc1243603. - CVE-2025-71302: drm/panthor: fix for dma-fence safe acce...

CVE-2026-63974

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Set HCICMDDRAINWORKQUEUE during device close Since hcidevclosesync can now be called during the reset path, we should also set HCICMDDRAINWORKQUEUE. This avoids queuing timeouts while the hdev workqueue is bei...

CVE-2026-63974 Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Set HCICMDDRAINWORKQUEUE during device close Since hcidevclosesync can now be called during the reset path, we should also set HCICMDDRAINWORKQUEUE. This avoids queuing timeouts while the hdev workqueue is bei...

CVE-2026-63974 Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Set HCICMDDRAINWORKQUEUE during device close Since hcidevclosesync can now be called during the reset path, we should also set HCICMDDRAINWORKQUEUE. This avoids queuing timeouts while the hdev workqueue is bei...

EUVD-2026-45747

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Set HCICMDDRAINWORKQUEUE during device close Since hcidevclosesync can now be called during the reset path, we should also set HCICMDDRAINWORKQUEUE. This avoids queuing timeouts while the hdev workqueue is bei...

CVE-2026-63944 Bluetooth: hci_sync: fix UAF in hci_le_create_cis_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: fix UAF in hcilecreatecissync hcilecreatecissync dereferences conn-conntimeout after releasing both rcureadlock and hcidevlockhdev. The conn pointer was obtained from an RCU-protected iteration over...

CVE-2026-63915 nfc: hci: fix out-of-bounds read in HCP header parsing

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: fix out-of-bounds read in HCP header parsing Both nfchcirecvfromllc and ncihcidatareceivedcb read packet-header from skb-data at function entry without first checking that the buffer holds at least one byte. A malicious...

CVE-2026-63871 Bluetooth: ISO: Fix data-race on iso_pi fields in hci_get_route calls

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix data-race on isopi fields in hcigetroute calls isoconnectbis, isoconnectcis, isolistenbis, and isoconnbigsync call hcigetroute using isopisk-dst, isopisk-src, and isopisk-srctype without holding locksock. Thes...

EUVD-2026-45556

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix data-race on isopi fields in hcigetroute calls isoconnectbis, isoconnectcis, isolistenbis, and isoconnbigsync call hcigetroute using isopisk-dst, isopisk-src, and isopisk-srctype without holding locksock. Thes...

CVE-2026-63871

CVE-2026-63871 concerns the Linux kernel Bluetooth ISO path. The issue is a data-race on the iso_pi fields passed to hci_get_route() in iso_connect_bis(), iso_connect_cis(), iso_listen_bis(), and iso_conn_big_sync(), which read iso_pi(sk)->dst/src/src_type without holding lock_sock(). Concurre...

CVE-2026-63871 Bluetooth: ISO: Fix data-race on iso_pi fields in hci_get_route calls

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix data-race on isopi fields in hcigetroute calls isoconnectbis, isoconnectcis, isolistenbis, and isoconnbigsync call hcigetroute using isopisk-dst, isopisk-src, and isopisk-srctype without holding locksock. Thes...

PT-2026-61188

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A data-race exists in the Bluetooth ISO implementation. The functions iso connect bis, iso connect cis, iso listen bis, and iso conn big sync call hci get route using the dst, src, and s...

Linux Distros Unpatched Vulnerability : CVE-2026-63871

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: ISO: Fix data-race on isopi fields in hcigetroute calls isoconnectbis, isoconnectcis, isolistenbis, and isoconnbigsync call hcigetroute using...

PT-2026-61261

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci sync: fix UAF in hci le create cis sync hci le create cis sync dereferences conn-conn timeout after releasing both rcu read lock and hci dev lockhdev. The conn pointer was obtained from an RCU-protected iteration...

SUSE CVE-2026-53364

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: Fix memory leak in hcilebigterminate hcilebigterminate allocates isolistdata via kzallocobj but returns 0 without freeing it when neither pasyncterm nor bigsyncterm flags are set after evaluating the PA and BI...

CVE-2026-53364

A flaw was found in the Linux kernel's Bluetooth Host Controller Interface HCI connection handling. The hcilebigterminate function, which is responsible for terminating Bluetooth connections, allocates memory but fails to free it under specific conditions when certain flags are not set. This memo...

KB5099540: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (July 2026)

The remote Windows host is missing security update 5099540. It is, therefore, affected by multiple vulnerabilities - Integer overflow or wraparound in Windows RDP allows an unauthorized attacker to execute code over a network. CVE-2026-58594 - Heap-based buffer overflow in Windows FTP Service...

Security Bulletin: Vulnerability in fast-uri bundled with IBM Fusion, IBM Fusion HCI, and IBM Fusion Data Cataloging

Summary IBM Fusion, IBM Fusion HCI, and IBM Fusion Data Cataloging include the fast-uri library, which is affected by a path traversal vulnerability. CVE-2026-6321 Vulnerability Details CVEID:CVE-2026-6321 DESCRIPTION: fast-uri decoded percent-encoded path separators and dot segments before...

Security Bulletin: Vulnerability in undici bundled with IBM Fusion, IBM Fusion HCI, and IBM Fusion Content-Aware Storage

Summary IBM Fusion, IBM Fusion HCI, and IBM Fusion Content-Aware Storage include the undici library, which is affected by a denial of service vulnerability. CVE-2026-22036 Vulnerability Details CVEID:CVE-2026-22036 DESCRIPTION: Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0,...