CVE-2022-48878

System crash via shutdown use-after-free

Published Aug 21, 2024 · Updated Aug 5, 2026

Use-after-free in the Linux kernel hci_qca driver allows local users to crash Qualcomm Atheros Bluetooth systems during reboot. qca_serdev_shutdown sends EDL_SOC_RESET and flushes a serial TTY even when the HCI device was never opened or is powered off, dereferencing freed state. The path requires the Qualcomm hci_qca serdev configuration and an unopened or powered-off HCI device; the resulting kernel fault interrupts orderly reboot.

CVSS severity7.8
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Use-after-free in the Linux kernel hci_qca driver allows local users to crash Qualcomm Atheros Bluetooth systems during reboot. qca_serdev_shutdown sends EDL_SOC_RESET and flushes a serial TTY even when the HCI device was never opened or is powered off, dereferencing freed state. The path requires the Qualcomm hci_qca serdev configuration and an unopened or powered-off HCI device; the resulting kernel fault interrupts orderly reboot.

The record

CVE
CVE-2022-48878
Published
Aug 21, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.8
  2. Affected versionversion=7e7bbddd029b644f00f0ffbfbc485ed71977d0d5 <272970be3dabd24cbe50e393ffee8f04aec3b9a8
  3. Affected versionversion=7e7bbddd029b644f00f0ffbfbc485ed71977d0d5 <908d1742b6e694e84ead5c62e4b7c1bfbb8b46a3
  4. Affected versionversion=7e7bbddd029b644f00f0ffbfbc485ed71977d0d5 <e84ec6e25df9bb0968599e92eacedaf3a0a5b587
  5. Affected versionversion=7e7bbddd029b644f00f0ffbfbc485ed71977d0d5 <ea3ebda47dd56f6e1c62f2e0e1b6e1b0a973e447

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.8; version=7e7bbddd029b644f00f0ffbfbc485ed71977d0d5 <272970be3dabd24cbe50e393ffee8f04aec3b9a8; version=7e7bbddd029b644f00f0ffbfbc485ed71977d0d5 <908d1742b6e694e84ead5c62e4b7c1bfbb8b46a3; version=7e7bbddd029b644f00f0ffbfbc485ed71977d0d5 <e84ec6e25df9bb0968599e92eacedaf3a0a5b587; version=7e7bbddd029b644f00f0ffbfbc485ed71977d0d5 <ea3ebda47dd56f6e1c62f2e0e1b6e1b0a973e447

Published CVSS scores

7.8kernel.orgCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo