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: 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).
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
| Date | Event | Detail |
| September 17, 2025 | Reserved | Reserved by Linux |
| September 18, 2025 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2022-50386 (Linux). CVSS 8.8 → 8 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 3df91ea20e744344100b10ae69a17211fcf5b207 | — |
| Linux | Linux | — | 3.4 | 4.9.331 |
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.