Bluetooth: MGMT: validate advertising TLV before type checks

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CVE-2026-53255

A flaw was found in the Linux kernel's Bluetooth Management MGMT component. A remote attacker could exploit this by providing specially crafted advertising data, leading to an out-of-bounds read vulnerability. This occurs because the system incorrectly validates the length of advertising data...

CVE-2026-53255

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate advertising TLV before type checks tlvdataisvalid reads each advertising data field length from datai, then inspects datai + 1 for managed EIR types before checking that the current field still fits insi...

CVE-2026-53255

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate advertising TLV before type checks tlvdataisvalid reads each advertising data field length from datai, then inspects datai + 1 for managed EIR types before checking that the current field still fits insi...

EUVD-2026-39206

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate advertising TLV before type checks tlvdataisvalid reads each advertising data field length from datai, then inspects datai + 1 for managed EIR types before checking that the current field still fits insi...

CVE-2026-53255

CVE-2026-53255 (Linux kernel) concerns a Bluetooth MGMT TLV parsing bug: tlv_data_is_valid() may read one byte past the advertising data when a malformed field’s length byte is at the buffer end, due to validating element length before verifying the type byte. This can enable local exploitation w...

CVE-2026-53255 Bluetooth: MGMT: validate advertising TLV before type checks

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate advertising TLV before type checks tlvdataisvalid reads each advertising data field length from datai, then inspects datai + 1 for managed EIR types before checking that the current field still fits insi...

PT-2026-52350

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Bluetooth MGMT component where the tlv data is valid function reads the advertising data field length from datai and inspects datai + 1 for managed EIR Enhanced...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fixed out-of-band OOB access during the parseadvmonitorpattern function execution. In the parseadvmonitorpattern function, the value of the length variable is currently limited to HCIMAXEXTADLENGTH251. The size o...

RLSA-2026:21557 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: can: j1939: j1939sessionnew: fix skb reference counting CVE-2024-56645 kernel: ima: don't clear IMADIGSIG flag when setting or removing non-IMA xattr CVE-2025-68183 kernel: mm: thp: deny...

RockyLinux 8 : kernel-rt (RLSA-2026:21745)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:21745 advisory. kernel: Bluetooth: MGMT: Fix possible UAFs CVE-2025-39981 kernel: ima: don't clear IMADIGSIG flag when setting or removing non-IMA xattr CVE-2025-68183...

RHEL 8 : kernel (RHSA-2026:21706)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:21706 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Bluetooth: MGMT: Fix possible...

kernel: Bluetooth: MGMT: Fix possible UAFs

A flaw was found in the Linux kernel’s Bluetooth management subsystem net/bluetooth/mgmt.c. The mgmtpending structure may be freed while still being processed, or remain on the pending command list, which allows a use-after-free or double-free scenario. An attacker with local access to the system...

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

An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

kernel: Bluetooth: MGMT: validate LTK enc_size on load

A flaw was found in the Linux kernel's Bluetooth management MGMT component. An attacker could exploit a vulnerability in how Long Term Keys LTK are loaded. By providing an oversized encryption size, a stack buffer overflow can occur, potentially leading to a denial of service...

kernel: Bluetooth: MGMT: Fix possible UAFs

A flaw was found in the Linux kernel’s Bluetooth management subsystem net/bluetooth/mgmt.c. The mgmtpending structure may be freed while still being processed, or remain on the pending command list, which allows a use-after-free or double-free scenario. An attacker with local access to the system...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

kernel: Bluetooth: MGMT: validate LTK enc_size on load

A flaw was found in the Linux kernel's Bluetooth management MGMT component. An attacker could exploit a vulnerability in how Long Term Keys LTK are loaded. By providing an oversized encryption size, a stack buffer overflow can occur, potentially leading to a denial of service...

kernel: Bluetooth: MGMT: validate LTK enc_size on load

A flaw was found in the Linux kernel's Bluetooth management MGMT component. An attacker could exploit a vulnerability in how Long Term Keys LTK are loaded. By providing an oversized encryption size, a stack buffer overflow can occur, potentially leading to a denial of service...

kernel: Bluetooth: MGMT: validate LTK enc_size on load

A flaw was found in the Linux kernel's Bluetooth management MGMT component. An attacker could exploit a vulnerability in how Long Term Keys LTK are loaded. By providing an oversized encryption size, a stack buffer overflow can occur, potentially leading to a denial of service...