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CVE-2026-53364Disclosure(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate() hci_le_big_terminate() allocates iso_list_data via kzalloc_obj but returns 0 without freeing it when neither pa_sync_term nor big_sync_term flags are set after evaluating the PA and BIG sync connection state. This early-return path was introduced when hci_le_big_terminate() was refactored to take struct hci_conn instead of raw u8 parameters, adding PA/BIG flag evaluation logic. The existing kfree() on hci_cmd_sync_queue failure does not cover this path.

linux CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Patch / fix
Other references
Weakness type (CWE)
CWE-401

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • linux_kernel

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-07-13); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
linux
Products
linux_kernel

1 version affected across 1 product

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-07-13: 1Mentions · 2026-07-15: 1Patch / Workaround · 2026-07-15: 1Technical Details · 2026-07-13: 1Technical Details · 2026-07-15: 107-1307-15
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-07-131
Disclosure1
2026-07-151
Patch1
Full discourse2 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-53364 Memory Leak in Linux Kernel Bluetooth hci_le_big_terminate() Function https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-53364

    Post summary

    The text announces a memory‑leak vulnerability (CVE‑2026‑53364) affecting the Linux Kernel Bluetooth hci_le_big_terminate() function, with no PoC, exploit, active use, or patch information provided.

    00010104
    4.1K followersView on X
  • Israel@f1tym1
    Patch

    Linux kernel patches resolve memory leak in Bluetooth HCI termination, fixing CVE-2026-53364 affecting multiple versions https://ift.tt/zNq0yhD

    Post summary

    The announcement concerns a patch to the Linux kernel that fixes a memory‑leak vulnerability in Bluetooth HCI termination (CVE-2026-53364). No exploitation, PoC, or false‑positive claims are made.

    0000073
    1.0K followersView on X
CPE platform detail6 entries

6 of 6 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---
OSlinuxlinux_kernel7.1--
OSlinuxlinux_kernel7.1--
OSlinuxlinux_kernel7.1--
OSlinuxlinux_kernel7.1--
OSlinuxlinux_kernel7.1--

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