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_event: Ignore multiple conn complete events
AV AC PR UI S C I A CVSS EPSS %ile KEV
A L L N U N N H 5.7 .0040 32.9 —
AFFECTED
Product Versions Fixed
Linux 7d0db0a373195385a2e0b19d1f5e4b186fdcffac – —
Linux 2.6.27 – 5.17.3
TIMELINE
Feb 26 Reserved by Linux
Feb 26 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2022-49138 (Linux). CVSS 8.8 → 5.7 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_event: Ignore multiple conn complete events
When one of the three connection complete events is received multiple
times for the same handle, the device is registered multiple times which
leads to memory corruptions. Therefore, consequent events for a single
connection are ignored.
The conn->state can hold different values, therefore HCI_CONN_HANDLE_UNSET
is introduced to identify new connections. To make sure the events do not
contain this or another invalid handle HCI_CONN_HANDLE_MAX and checks
are introduced.
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| February 26, 2025 | Reserved | Reserved by Linux |
| February 26, 2025 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2022-49138 (Linux). CVSS 8.8 → 5.7 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 7d0db0a373195385a2e0b19d1f5e4b186fdcffac | — |
| Linux | Linux | — | 2.6.27 | 5.17.3 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-49138 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.