CVE-2022-49519

System crash via double-free during suspend

Published Feb 26, 2025 · Updated Aug 15, 2026

A double free in affected Linux kernel ath10k drivers allows local users to crash the system by suspending it during firmware recovery. The suspend path calls ath10k_halt while a frozen restart worker has already initiated the same cleanup, causing ath10k_htt_rx_free to release unallocated receive resources twice. The race requires an ath10k-supported wireless device, an in-progress firmware restart, and a suspend event; the demonstrated consequence is a kernel crash.

CVSS severity7.8
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A double free in affected Linux kernel ath10k drivers allows local users to crash the system by suspending it during firmware recovery. The suspend path calls ath10k_halt while a frozen restart worker has already initiated the same cleanup, causing ath10k_htt_rx_free to release unallocated receive resources twice. The race requires an ath10k-supported wireless device, an in-progress firmware restart, and a suspend event; the demonstrated consequence is a kernel crash.

The record

CVE
CVE-2022-49519
Published
Feb 26, 2025
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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=4.10
  2. Affected versionversion=4.9.2 <4.10
  3. Affected versionversion=c2cac2f74ab4bcf0db0dcf3a612f1e5b52d145c8 <5321e5211b5dc873e2e3d0deb749e69ecf4dbfe5
  4. Affected versionversion=c2cac2f74ab4bcf0db0dcf3a612f1e5b52d145c8 <7eb14cb604f49e58b7cf6faa87961a865a3c8649
  5. Affected versionversion=c2cac2f74ab4bcf0db0dcf3a612f1e5b52d145c8 <8aa3750986ffcf73e0692db3b40dd3a8e8c0c575
  6. Affected versionversion=c2cac2f74ab4bcf0db0dcf3a612f1e5b52d145c8 <b72a4aff947ba807177bdabb43debaf2c66bee05
  7. Affected versionversion=c2cac2f74ab4bcf0db0dcf3a612f1e5b52d145c8 <c2272428090d0d215a3f017cbbbad731c07eee53
  8. Affected versionversion=ea23fca0c60045afbbeceef1926893d905eb1b36

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.10; version=4.9.2 <4.10; version=c2cac2f74ab4bcf0db0dcf3a612f1e5b52d145c8 <5321e5211b5dc873e2e3d0deb749e69ecf4dbfe5; version=c2cac2f74ab4bcf0db0dcf3a612f1e5b52d145c8 <7eb14cb604f49e58b7cf6faa87961a865a3c8649; version=c2cac2f74ab4bcf0db0dcf3a612f1e5b52d145c8 <8aa3750986ffcf73e0692db3b40dd3a8e8c0c575; version=c2cac2f74ab4bcf0db0dcf3a612f1e5b52d145c8 <b72a4aff947ba807177bdabb43debaf2c66bee05; version=c2cac2f74ab4bcf0db0dcf3a612f1e5b52d145c8 <c2272428090d0d215a3f017cbbbad731c07eee53; version=ea23fca0c60045afbbeceef1926893d905eb1b36

Published CVSS scores

7.8NVDCVSS: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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-415Double Free
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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