boxscore/security
CVE · referencelatest edition

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.

CVE-2022-50386HIGH
Linux Linux — Bluetooth: L2CAP: Fix user-after-free
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   A   L   L   N  U  H  H  H    8.0   .0036   29.3     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    3df91ea20e744344100b10ae69a17211fcf5b207 –  —
  Linux    3.4 –                                       4.9.331
TIMELINE
  Sep 17  Reserved by Linux
  Sep 18  Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2022-50386 (Linux). CVSS 8.8 → 8 (NVD).
CWE-416 · CNA: Linux · CVSS v3.1 · 9 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix user-after-free This uses l2cap_chan_hold_unless_zero() after calling __l2cap_get_chan_blah() to prevent the following trace: Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref *kref) Bluetooth: chan 0000000023c4974d Bluetooth: parent 00000000ae861c08 ================================================================== BUG: KASAN: use-after-free in __mutex_waiter_is_first kernel/locking/mutex.c:191 [inline] BUG: KASAN: use-after-free in __mutex_lock_common kernel/locking/mutex.c:671 [inline] BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400 kernel/locking/mutex.c:729 Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
September 17, 2025ReservedReserved by Linux
September 18, 2025PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2022-50386 (Linux). CVSS 8.8 → 8 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux3df91ea20e744344100b10ae69a17211fcf5b207
LinuxLinux3.44.9.331

Weaknesses

CWE-416

References (9)

Related

Authoritative record: CVE-2022-50386 at cve.org

Vendors: linux

Weaknesses: CWE-416

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-50386 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.