CVE-2026-53209

A flaw was found in the Bluetooth subsystem of the Linux kernel, specifically within the hcisync component. This vulnerability occurs when the hciadvbcastannoucement function attempts to prepend Broadcast Announcement service data to an existing advertising payload that is already at its maximum...

CVE-2026-53251

A flaw was found in the Linux kernel's Bluetooth subsystem. The hcigetroute function, used in the ISO Isochronous Stream connection handling, fails to release a reference-counted hcidev pointer. This resource leak could lead to a Denial of Service DoS condition...

CVE-2026-53252

A flaw was found in the Linux kernel's Bluetooth subsystem. Specifically, an issue in the error handling path of the hciallocdev function within the Bluetooth Host Controller Interface HCI Universal Asynchronous Receiver/Transmitter UART configuration can lead to a memory leak. This occurs when...

CVE-2026-53072

A flaw was found in the Linux kernel's Bluetooth subsystem. Improper handling of locking within the hciconnrequestevt function, particularly when the HCIPROTODEFER protocol is active, can result in a Use-After-Free UAF vulnerability. This condition arises when a connection object is accessed afte...

CVE-2026-52918

A flaw was found in the Linux kernel's Bluetooth subsystem. A race condition exists in the handling of the acceptq within the btsockpoll function due to a lack of synchronization. This could allow a local attacker to cause a denial of service by manipulating socket operations during child teardow...

kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers

A flaw was found in the Linux kernel's Bluetooth subsystem. This vulnerability, a Use-After-Free UAF, exists within the Secure Simple Pairing SSP passkey handlers. It occurs when hciconn lookup and field access are performed without proper locking, allowing a connection to be freed concurrently...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: mediatek – Add an interface release flow when USB is disconnected. MediaTek claims that there is a special USB interface for ISO data transmission. This interface must be released before unregistering an HCI...

kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers

A flaw was found in the Linux kernel's Bluetooth subsystem. This vulnerability, a Use-After-Free UAF, exists within the Secure Simple Pairing SSP passkey handlers. It occurs when hciconn lookup and field access are performed without proper locking, allowing a connection to be freed concurrently...

Ubuntu 20.04 LTS : Linux kernel (FIPS) vulnerabilities (USN-7461-2)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7461-2 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

Ubuntu 20.04 LTS : Linux kernel (FIPS) vulnerabilities (USN-7701-2)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7701-2 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

Ubuntu 20.04 LTS : Linux kernel (Azure FIPS) vulnerabilities (USN-7819-2)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7819-2 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

SUSE CVE-2026-46140

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btmtk: validate WMT event SKB length before struct access btmtkusbhciwmtsync casts the WMT event response SKB data to struct btmtkhciwmtevt 7 bytes and struct btmtkhciwmtevtfuncc 9 bytes without first checking that the...

CVE-2026-46140

A flaw was found in the Linux kernel's Bluetooth subsystem, specifically within the btmtk driver. A remote attacker could exploit this vulnerability by sending a specially crafted Wireless Management Terminal WMT event response. The system processes these responses without properly validating the...

CVE-2026-46138

A flaw was found in the Linux kernel's Bluetooth subsystem, specifically within the hcilecreatebigcompleteevt function. A remote attacker, by sending a specially crafted LECreateBIGComplete event from a malicious Bluetooth controller, could trigger an out-of-bounds read and an infinite loop. This...

CVE-2026-46138

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: Fix OOB read and infinite loop in hcilecreatebigcompleteevt hcilecreatebigcompleteevt iterates over BTBOUND connections for a BIG handle using a while loop, accessing ev-bishandlei++ on each iteration. Howeve...

CVE-2026-46056

A flaw was found in the Linux kernel's Bluetooth subsystem. This vulnerability, a Use-After-Free UAF, exists within the Secure Simple Pairing SSP passkey handlers. It occurs when hciconn lookup and field access are performed without proper locking, allowing a connection to be freed concurrently...

USN-8278-2: Linux kernel (Azure) vulnerabilities

It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-31431 Several security issues were discovered in th...

USN-8289-2: Linux kernel (NVIDIA) vulnerabilities

It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-31431 Several security issues were discovered in th...

Ubuntu 20.04 LTS : Linux kernel (GCP) vulnerabilities (USN-8297-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8297-1 advisory. Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux kernel did not properly perform permission chec...

Ubuntu 24.04 LTS : Linux kernel (FIPS) vulnerabilities (USN-8296-1)

The remote Ubuntu 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8296-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...