VYPR
Medium severity5.5NVD Advisory· Published Jul 13, 2026· Updated Aug 3, 2026

CVE-2026-53364

CVE-2026-53364

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.

Affected products

8
  • Linux/Kernel7 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 6 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.16.4,<6.18.35
    • cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*
    • (no CPE)
  • osv-coords
    Range: >= 6.17.0, < 6.18.35

Patches

Vulnerability mechanics

References

4

News mentions

0

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