Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: ISO: Fixed issues related to locking and validity checks for isoconn. sk-skstate indicates whether isopisk-conn is valid. Operations that check or update skstate and access conn should hold locksock; otherwise, they...

PT-2026-72987

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Bluetooth ISO implementation where the iso sock timeout function acquires lock sock. Synchronously disabling the timer while holding this lock can result in a...

CVE-2026-64404

CVE-2026-64404 is a NULL pointer dereference in the Linux kernel's Bluetooth ISO subsystem , specifically in the iso_conn_big_sync() function. The function drops the socket lock to call hci_get_route() and re-acquires it, but dereferences iso_pi(sk)->conn->hcon without re-validating that co...

CVE-2026-53251

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference on isoconnbigsync hcigetroute returns a reference-counted hcidev pointer via hcidevhold. The function exits normally or with an error without ever releasing it...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fixed a potential UAF Uninitialized Address Fault in isoconnfree. This fix addresses a similar issue to scoconnfree, where if conn-sk is not set to NULL, it may lead to a UAF in isoconnfree...

kernel: Bluetooth: ISO: Fix possible UAF on iso_conn_free

A vulnerability was found in isosockkill in net/bluetooth/iso.c in Bluetooth protocol stack in the Linux Kernel. In this flaw if the conn-sk is not set to NULL may lead to UAF on isoconnfree...

The vulnerability of the iso_conn_free() function in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the isoconnfree function in the Linux operating system’s kernel is related to the use of memory after it is freed. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2025-40141

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix possible UAF on isoconnfree This attempt to fix similar issue to scoconnfree where if the conn-sk is not set to NULL may lead to UAF on isoconnfree. Mitigation Mitigation for this issue is either not available...

EUVD-2025-124942

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix possible UAF on isoconnfree This attempt to fix similar issue to scoconnfree where if the conn-sk is not set to NULL may lead to UAF on isoconnfree...

CVE-2025-40141 Bluetooth: ISO: Fix possible UAF on iso_conn_free

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix possible UAF on isoconnfree This attempt to fix similar issue to scoconnfree where if the conn-sk is not set to NULL may lead to UAF on isoconnfree...

PT-2025-46616

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 component of the Linux kernel. Specifically, the vulnerability occurs during the iso conn free function, potentially leading to a...