Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel versions prior to 6.1.178 and prior to 6.6.145. This vulnerability stems from the Bluetooth ISO failing to verify whether a service UUID is the Basic Audio Announcement Service UUID; as a result, Periodic Advertisement Report data may be incorrectly...

CVE-2026-80914

A flaw was found in the Bluetooth ISO subsystem of the Linux kernel. A use-after-free vulnerability can occur in the isoconnready function if a listener socket is closed concurrently while a child socket is being created. This can lead to a dangling pointer being dereferenced upon a later...

Linux Kernel Security Vulnerabilities

Versions of the Linux kernel from 6.6.67 to 6.6.158 and 6.8 contain security vulnerabilities. These vulnerabilities stem from an issue with the hcibindbis function in Bluetooth ISO, which fails to properly balance the reference counts of parent connections. This leads to the discarding of existin...

Linux Kernel Security Vulnerabilities

The Linux kernel version 6.6 contains security vulnerabilities. These vulnerabilities stem from the Bluetooth ISO not releasing unused CIS-held references after channel attachment, which may lead to resource leaks...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: ISO: Fixed UAF in isosocktimeout The conn-sk might have been unlinked/freed while waiting for isoconnlock. Therefore, this check determines whether conn-sk is still valid by verifying that it is part of isosklist...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fixed an issue where the listener socket was not properly freed after use, in the isoconnready function. The isoconnready function retrieves the BIS listener socket using isogetsock, which takes a reference to the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: ISO: Fixed multiple calls to isoinit when debugfs is disabled. If bt DebugFS is not created successfully—which occurs if CONFIGDEBUGFS or CONFIGDEBUGFSALLOWALL is not set—then isoinit returns early without setting...

kernel: Bluetooth: ISO: fix UAF in iso_recv_frame

A flaw was found in the Linux kernel's Bluetooth ISO Isochronous Stream subsystem. This vulnerability, known as a Use-After-Free, occurs because the system attempts to use a memory area after it has been released, which can lead to unpredictable behavior. A malicious actor could potentially explo...

kernel: Bluetooth: ISO: serialize iso_sock_clear_timer with socket lock

A flaw was found in the Linux kernel's Bluetooth ISO Isochronous Stream subsystem. A race condition exists where the isosockcleartimer function can access connection data without proper locking, while another function, isoconndel, concurrently modifies the same data. This can lead to a NULL point...

AZL-99959 CVE-2026-80914 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix use-after-free of listener socket in isoconnready isoconnready looks up the BIS listener socket with isogetsock, which takes a reference, and then, without re-checking its state, creates a child socket from it...

DEBIAN-CVE-2026-80914

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix use-after-free of listener socket in isoconnready isoconnready looks up the BIS listener socket with isogetsock, which takes a reference, and then, without re-checking its state, creates a child socket from it...

CVE-2026-80914

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix use-after-free of listener socket in isoconnready isoconnready looks up the BIS listener socket with isogetsock, which takes a reference, and then, without re-checking its state, creates a child socket from it...

CVE-2026-80914

CVE-2026-80914 is a use-after-free vulnerability in the Linux kernel's Bluetooth ISO subsystem , specifically in the iso_conn_ready() function. When a BIS listener socket is closed concurrently between iso_get_sock() and lock_sock(), the socket may be freed while a child socket remains linked to ...

EUVD-2026-75088

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix use-after-free of listener socket in isoconnready isoconnready looks up the BIS listener socket with isogetsock, which takes a reference, and then, without re-checking its state, creates a child socket from it...

CVE-2026-80914 Bluetooth: ISO: fix use-after-free of listener socket in iso_conn_ready

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix use-after-free of listener socket in isoconnready isoconnready looks up the BIS listener socket with isogetsock, which takes a reference, and then, without re-checking its state, creates a child socket from it...

PT-2026-89084

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the Bluetooth ISO implementation. The iso conn ready function retrieves a BIS listener socket using iso get sock and creates a child socket without...

Linux Distros Unpatched Vulnerability : CVE-2026-80914

"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 use-after-free of listener socket in isoconnready isoconnready looks up the BIS listener socket with isogetsock, which takes a reference, a...

kernel: Bluetooth: ISO: fix UAF in iso_recv_frame

A flaw was found in the Linux kernel's Bluetooth ISO Isochronous Stream subsystem. This vulnerability, known as a Use-After-Free, occurs because the system attempts to use a memory area after it has been released, which can lead to unpredictable behavior. A malicious actor could potentially explo...

SUSE CVE-2026-80761

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: zero the sockaddr before returning it in getname isosockgetname fills a struct sockaddriso in place and returns its size without clearing it first, so bytes it does not write are copied to user space from the kern...

CVE-2026-80761

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: zero the sockaddr before returning it in getname isosockgetname fills a struct sockaddriso in place and returns its size without clearing it first, so bytes it does not write are copied to user space from the kern...