CVE-2026-53364 (GCVE-0-2026-53364)

Vulnerability from cvelistv5 – Published: 2026-07-13 17:33 – Updated: 2026-08-03 09:32
VLAI
Title
Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a8444cca514edd4e47e322926b10516a5a6d7016 , < 488e808e3fa53200f3ef3324c45fcba4ae9f4972 (git)
Affected: a7bcffc673de219af2698fbb90627016233de67b , < e6b78019664dfe37c3dc707f50e7b453d6c7726d (git)
Affected: a7bcffc673de219af2698fbb90627016233de67b , < a59d4f4217e6200ca9180643e5738a87d3fa8be0 (git)
Affected: a7bcffc673de219af2698fbb90627016233de67b , < bfa9d28960ed677d556bdf097073bc3129686229 (git)
Affected: 087812a6119b4cd5c9d658b48aee40a25707a1c6 (git)
Affected: 6.16.4 , < 6.17 (semver)
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Linux Linux Affected: 6.17
Unaffected: 0 , < 6.17 (semver)
Unaffected: 6.18.35 , ≤ 6.18.* (semver)
Unaffected: 7.0.12 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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}



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