kernel: use after free flaw in l2cap_conn_del in net/bluetooth/l2cap_core.c

A vulnerability was found in the Linux Kernel in the l2capconndel in net/bluetooth/l2capcore.c function in the Bluetooth component. This issue leads to a use-after-free problem...

kernel: Bluetooth: L2CAP: Fix user-after-free

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix user-after-free This uses l2capchanholdunlesszero after calling l2capgetchanblah to prevent the following trace: Bluetooth: l2capcore.c:static void l2capchandestroystruct kref kref Bluetooth: chan...

CVE-2023-53827 Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2capdisconnectreq,rsp Similar to commit d0be8347c623 "Bluetooth: L2CAP: Fix use-after-free caused by l2capchanput", just use l2capchanholdunlesszero to prevent referencing a channel that i...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from improper channel reference counting in l2capdisconnect, which could lead to reuse after release...

RHEL 7 : kernel-rt (RHSA-2025:22914)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:22914 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

Linux Distros Unpatched Vulnerability : CVE-2023-53827

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: L2CAP: Fix use-after-free in l2capdisconnectreq,rsp Similar to commit d0be8347c623 Bluetooth: L2CAP: Fix use-after-free caused by l2capchanput, just...

OESA-2025-2771 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free Fix potential use-after-free in l2caplecommandrej.CVE-2023-53305...

kernel: Bluetooth: L2CAP: Fix user-after-free

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix user-after-free This uses l2capchanholdunlesszero after calling l2capgetchanblah to prevent the following trace: Bluetooth: l2capcore.c:static void l2capchandestroystruct kref kref Bluetooth: chan...

Moderate: Red Hat Security Advisory: kernel-rt security update

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Moderate: Red Hat Security Advisory: kernel-rt security update

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

kernel: Bluetooth: L2CAP: Fix user-after-free

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix user-after-free This uses l2capchanholdunlesszero after calling l2capgetchanblah to prevent the following trace: Bluetooth: l2capcore.c:static void l2capchandestroystruct kref kref Bluetooth: chan...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service. Red Hat Product Security has rated this update as...

RHEL 8 : kernel (RHSA-2025:22006)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:22006 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: ethtool: check device is...

RHEL 9 : kernel-rt (RHSA-2025:22124)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:22124 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

RHEL 9 : kernel (RHSA-2025:22066)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:22066 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: ALSA: usb-audio: Validate UAC...

CLSA-2025-1763722365 kernel: Fix of 62 CVEs

wifi: mwifiex: Fix OOB and integer underflow when rx packets CVE-2023-53226 CVE-2023-53226 - wifi: mac80211: check S1G action frame size CVE-2023-53257 CVE-2023-53257 - wifi: cfg80211: fix use-after-free in cmpbss CVE-2025-39864 CVE-2025-39864 - partitions: mac: fix handling of bogus partition...

CVE-2025-4321

In a Bluetooth device, using RS9116-WiseConnect SDK experiences a Denial of Service, if it receives malformed L2CAP packets, only hard reset will bring the device to normal operation...

SUSE-SU-2025:4123-1 Security update for the Linux Kernel (Live Patch 61 for SUSE Linux Enterprise 12 SP5)

This update for the SUSE Linux Enterprise kernel 4.12.14-122.231 fixes various security issues The following security issues were fixed: - CVE-2022-48956: ipv6: avoid use-after-free in ip6fragment bsc1232637. - CVE-2022-49014: net: tun: Fix use-after-free in tundetach bsc1232818. - CVE-2022-49053...

CVE-2025-4321

In a Bluetooth device, using RS9116-WiseConnect SDK experiences a Denial of Service, if it receives malformed L2CAP packets, only hard reset will bring the device to normal operation...