CVE-2023-53827

The CVE-2023-53827 issue affects the Linux kernel Bluetooth subsystem (L2CAP). The vulnerability is caused by a use-after-free in l2cap_disconnect_{req,rsp}. The cited fix uses l2cap_chan_hold_unless_zero to avoid referencing a channel that is about to be destroyed, addressing the underlying refe...

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...

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...

Bluetooth: SCO: Fix UAF on sco_conn_free

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SUSE CVE-2023-53762

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Fix UAF in hcidisconnectallsync Use-after-free can occur in hcidisconnectallsync if a connection is deleted by concurrent processing of a controller event. To prevent this the code now tries to iterate over th...

SUSE CVE-2025-40294

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix OOB access in parseadvmonitorpattern In the parseadvmonitorpattern function, the value of the 'length' variable is currently limited to HCIMAXEXTADLENGTH251. The size of the 'value' array in the mgmtadvpatter...

SUSE CVE-2025-40301

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: validate skb length for unknown CC opcode In hcicmdcompleteevt, if the command complete event has an unknown opcode, we assume the first byte of the remaining skb-data contains the return status. However,...

SUSE CVE-2025-40308

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bcsp: receive data only if registered Currently, bcsprecv can be called even when the BCSP protocol has not been registered. This leads to a NULL pointer dereference, as shown in the following stack trace: KASAN:...

SUSE CVE-2025-40309

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Fix UAF on scoconnfree BUG: KASAN: slab-use-after-free in scoconnfree net/bluetooth/sco.c:87 inline BUG: KASAN: slab-use-after-free in krefput include/linux/kref.h:65 inline BUG: KASAN: slab-use-after-free in...

SUSE CVE-2025-40318

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: fix race in hcicmdsyncdequeueonce hcicmdsyncdequeueonce does lookup and then cancel the entry under two separate lock sections. Meanwhile, hcicmdsyncwork can also delete the same entry, leading to double listd...

PT-2025-49719

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the Bluetooth component of the Linux kernel, specifically within the hci add adv monitor function. The issue occurs when adding an advertisement monitor,...

AlmaLinux 9 : kernel (ALSA-2025:22405)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:22405 advisory. kernel: nfsd: handle getclientlocked failure in nfsd4setclientidconfirm CVE-2025-38724 kernel: wifi: cfg80211: fix use-after-free in cmpbss CVE-2025-3986...

Oracle Linux 10 : kernel (ELSA-2025-22854)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-22854 advisory. - iommu/vt-d: Disallow dirty tracking if incoherent page walk CKI Backport Bot RHEL-125482 CVE-2025-40058 - net/mlx5: fs, fix UAF in flow counter...

PT-2025-49718

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's Bluetooth L2CAP implementation, specifically within the l2cap disconnect req and l2cap disconnect rsp functions. This issue involves a use-after-free...

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...

RHEL 10 : kernel (RHSA-2025:22854)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:22854 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: cifs: Fix oops due to...

RHEL 7 : kernel (RHSA-2025:22910)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:22910 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: use after free flaw in...

CVE-2025-40308

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bcsp: receive data only if registered Currently, bcsprecv can be called even when the BCSP protocol has not been registered. This leads to a NULL pointer dereference, as shown in the following stack trace: KASAN:...

CVE-2025-40294

No description is available for this CVE. Mitigation To mitigate this issue, the bluetooth kernel module can be prevented from loading. Create a file /etc/modprobe.d/disable-bluetooth.conf with the content blacklist bluetooth. Then, regenerate the initramfs using dracut -f -v and reboot the syste...