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-2026-63944

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-2026-53072

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-2026-53276

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix a use-after-free of the hciconn pointer In isosockrebindbc, the bis pointer is cached, then the socket lock is dropped: bis = isopisk-conn-hcon; / Release the socket before lookups since that requires hcidevlo...

CVE-2026-53276

The CVE-2026-53276 entry concerns the Linux kernel Bluetooth ISO stack. A use-after-free occurs in iso_sock_rebind_bc where the bis pointer is cached and the socket lock is released before traversals, allowing a concurrent close() to free the hci_conn and its bis structure. The code then accesses...

CVE-2026-53276 Bluetooth: ISO: Fix a use-after-free of the hci_conn pointer

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix a use-after-free of the hciconn pointer In isosockrebindbc, the bis pointer is cached, then the socket lock is dropped: bis = isopisk-conn-hcon; / Release the socket before lookups since that requires hcidevlo...

CVE-2026-53276

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix a use-after-free of the hciconn pointer In isosockrebindbc, the bis pointer is cached, then the socket lock is dropped: bis = isopisk-conn-hcon; / Release the socket before lookups since that requires hcidevlo...

CVE-2026-53276 Bluetooth: ISO: Fix a use-after-free of the hci_conn pointer

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix a use-after-free of the hciconn pointer In isosockrebindbc, the bis pointer is cached, then the socket lock is dropped: bis = isopisk-conn-hcon; / Release the socket before lookups since that requires hcidevlo...

PT-2026-51966

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A locking issue exists in the Bluetooth subsystem within the hci conn request evt function when the protocol is set to HCI PROTO DEFER. In this state, the function calls hci connect...

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...

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...

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...

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...

SUSE CVE-2026-46111

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: fix potential UAF in createbigsync Add hciconnvalid check in createbigsync to detect stale connections before proceeding with BIG creation. Handle the resulting -ECANCELED in createbigcomplete and re-validate...

CVE-2026-46111 Bluetooth: hci_conn: fix potential UAF in create_big_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: fix potential UAF in createbigsync Add hciconnvalid check in createbigsync to detect stale connections before proceeding with BIG creation. Handle the resulting -ECANCELED in createbigcomplete and re-validate...

PT-2026-44234

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified openSUSE Tumbleweed versions prior to kernel-devel-7.0.11-1.1 Description A use-after-free issue exists in the Bluetooth component. The create big complete function unconditionally dereferences the...

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...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hciconn: Fixed a potential Universal Arbitrary Fault UAF in setcigparamssync. The lookup of hciconn and field access must be protected by the hdev lock in setcigparamssync. Otherwise, it’s possible that these...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Use RCU for hciconnparams and iterate safely in hcisync. hciupdateacceptlistsync iterates over hdev-pendleconns and hdev-pendlereports, and waits for controller events within the loop body, without holding the hdev...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed a division by zero issue in l2capleflowctlinit. l2capleflowctlinit may cause both a division by zero and an integer overflow, as hdev-lemtu may not fall within the valid range. The MTU value was moved...