EUVD-2026-67542

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: sco: Fix a race condition in scosocktimeout scosocktimeout runs asynchronously and locksocksk. If the socket is closing while the timer is running, it holds the same lock locksocksk twice, leading to a deadlock. CPU 0...

CVE-2026-80666

CVE-2026-80666 affects the Linux kernel Bluetooth SCO (synchronous connection-oriented) socket implementation in net/bluetooth/sco.c. The root cause is a race condition between sco_sock_close() and the asynchronous sco_sock_timeout() work item: both attempt to hold lock_sock(sk) simultaneously, r...

CVE-2026-80666 Bluetooth: sco: Fix a race condition in sco_sock_timeout()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: sco: Fix a race condition in scosocktimeout scosocktimeout runs asynchronously and locksocksk. If the socket is closing while the timer is running, it holds the same lock locksocksk twice, leading to a deadlock. CPU 0...

CVE-2026-80666

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: sco: Fix a race condition in scosocktimeout scosocktimeout runs asynchronously and locksocksk. If the socket is closing while the timer is running, it holds the same lock locksocksk twice, leading to a deadlock. CPU 0...

CVE-2026-80666 Bluetooth: sco: Fix a race condition in sco_sock_timeout()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: sco: Fix a race condition in scosocktimeout scosocktimeout runs asynchronously and locksocksk. If the socket is closing while the timer is running, it holds the same lock locksocksk twice, leading to a deadlock. CPU 0...

PT-2026-82966

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: sco: Fix a race condition in sco sock timeout sco sock timeout runs asynchronously and lock socksk. If the socket is closing while the timer is running, it holds the same lock lock socksk twice, leading to a deadlock...

PT-2026-82983

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: give the socket its own sco conn reference sco conn del drops a reference it does not own. It takes one transient reference via sco conn hold unless zero and releases it with the sco conn put that follows sco sock...

CVE-2026-80683: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: give the socket its own scoconn reference scoconndel drops a reference it does not own. It takes one transient reference via scoconnholdunlesszero and releases it with the scoconnput that follows scosockhold; the...

CVE-2026-80666: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: sco: Fix a race condition in scosocktimeout scosocktimeout runs asynchronously and locksocksk. If the socket is closing while the timer is running, it holds the same lock locksocksk twice, leading to a deadlock. CPU 0...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: In hcievent, there is a callback for call disconnect that is called before the connection is deleted. In hcicsdisconnect, we call hciconndel even if the disconnection fails. ISO, L2CAP, and SCO connections refer to...

RHEL 9 : kernel (RHSA-2026:36767)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:36767 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Bluetooth: Fix use-after-free...

kernel: Bluetooth: SCO: Fix UAF on sco_sock_timeout

A use-after-free vulnerability was found in the Linux kernel's Bluetooth SCO. When scosocktimeout is called, conn-sk may be unlinked/freed while waiting for scoconnlock. This checks if the conn-sk is still valid by checking if it is part of scosklist, leading to a loss of availability and system...

RHEL 8 : kernel (RHSA-2026:35894)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:35894 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Bluetooth: SCO: Fix...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues The following security issues were fixed: CVE-2022-49979: net: fix refcount bug in skpsockget bsc1245109. CVE-2023-20585: x86/CPU: Fix FPDSS on Zen1 bsc1243603. CVE-2026-23239: espintcp: Fix race condition in...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues The following security issues were fixed: CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 bsc1243603. CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache bsc1264013...

RockyLinux 9 : kernel (RLSA-2026:21556)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:21556 advisory. kernel: proc: use the same treatment to check proclseek as ones for procreaditer et.al CVE-2025-38653 kernel: ima: don't clear IMADIGSIG flag when setti...

CVE-2026-46186 Bluetooth: virtio_bt: validate rx pkt_type header length

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: virtiobt: validate rx pkttype header length virtbtrxhandle reads the leading pkttype byte from the RX skb and forwards the remainder to hcirecvframe for every event/ACL/SCO/ISO type, without checking that the remaining...

kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold

A flaw was found in the Linux kernel's Bluetooth SCO Synchronous Connection-Oriented protocol implementation. The scorecvframe function fails to properly hold a reference to a socket after releasing a lock. This oversight allows a concurrent operation to free the socket while it is still being...

kernel: Bluetooth: SCO: fix race conditions in sco_sock_connect()

A flaw was found in the Linux kernel, specifically within its Bluetooth Synchronous Connection-Oriented SCO component. This vulnerability occurs due to race conditions when multiple connection attempts are made simultaneously on the same Bluetooth socket. This can lead to a use-after-free error,...

ALSA-2026:21557 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: can: j1939: j1939sessionnew: fix skb reference counting CVE-2024-56645 kernel: ima: don't clear IMADIGSIG flag when setting or removing non-IMA xattr CVE-2025-68183 kernel: mm: thp: deny...