Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0011 1.7 —
AFFECTED
Product Versions Fixed
Linux a8444cca514edd4e47e322926b10516a5a6d7016 – —
Linux 6.17 – 6.18.35
TIMELINE
Jun 9 Reserved by Linux
Jul 13 Published (CNA: Linux)
Aug 3 ENRICHED — CVE-2026-53364 (Linux). Received CVSS 5.5 and CPE data from 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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| June 9, 2026 | Reserved | Reserved by Linux |
| July 13, 2026 | Published | Published (CNA: Linux) |
| August 3, 2026 | ENRICHED | ENRICHED — CVE-2026-53364 (Linux). Received CVSS 5.5 and CPE data from NVD. |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | a8444cca514edd4e47e322926b10516a5a6d7016 | — |
| Linux | Linux | — | 6.17 | 6.18.35 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-53364 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.