CVE-2022-50880

Kernel crash via stale ath10k peer mapping

Published Dec 30, 2025 · Updated Dec 30, 2025

Use-after-free in the Linux kernel ath10k driver allows physically proximate attackers to crash or hang systems during Wi-Fi disconnects. Multiple firmware peer-map identifiers can reference one ath10k_peer, but failed deletion frees that shared object while later identifiers still reference it. Reachability requires an ath10k connection and an adjacent Wi-Fi disconnection trigger; the resulting stale access can corrupt kernel memory and interrupt the host.

CVSS severityUnavailable
Unscored
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel ath10k driver allows physically proximate attackers to crash or hang systems during Wi-Fi disconnects. Multiple firmware peer-map identifiers can reference one ath10k_peer, but failed deletion frees that shared object while later identifiers still reference it. Reachability requires an ath10k connection and an adjacent Wi-Fi disconnection trigger; the resulting stale access can corrupt kernel memory and interrupt the host.

The record

CVE
CVE-2022-50880
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=4.8
  2. Affected versionversion=d0eeafad118940fe445ca00f45be5624fea2ec34 <08faf07717be0c88b02b5aa45aad2225dfcdd2dc
  3. Affected versionversion=d0eeafad118940fe445ca00f45be5624fea2ec34 <15604ab67179ae27ea3c7fb24b6df32b143257c4
  4. Affected versionversion=d0eeafad118940fe445ca00f45be5624fea2ec34 <2bf916418d2141b810c40812433ab4ecfd3c2934
  5. Affected versionversion=d0eeafad118940fe445ca00f45be5624fea2ec34 <2d6259715c9597a6cfa25db8911683eb0073b1c6
  6. Affected versionversion=d0eeafad118940fe445ca00f45be5624fea2ec34 <38245f2d62cd4d1f38a763a7b4045ab4565b30a0
  7. Affected versionversion=d0eeafad118940fe445ca00f45be5624fea2ec34 <4494ec1c0bb850eaa80fed98e5b041d961011d3e
  8. Affected versionversion=d0eeafad118940fe445ca00f45be5624fea2ec34 <54a3201f3c1ff813523937da78b5fa7649dbab71
  9. Affected versionversion=d0eeafad118940fe445ca00f45be5624fea2ec34 <f020d9570a04df0762a2ac5c50cf1d8c511c9164
  10. Affected versionversion=d0eeafad118940fe445ca00f45be5624fea2ec34 <f12fc305c127bd07bb50373e29c6037696f916a8

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.8; version=d0eeafad118940fe445ca00f45be5624fea2ec34 <08faf07717be0c88b02b5aa45aad2225dfcdd2dc; version=d0eeafad118940fe445ca00f45be5624fea2ec34 <15604ab67179ae27ea3c7fb24b6df32b143257c4; version=d0eeafad118940fe445ca00f45be5624fea2ec34 <2bf916418d2141b810c40812433ab4ecfd3c2934; version=d0eeafad118940fe445ca00f45be5624fea2ec34 <2d6259715c9597a6cfa25db8911683eb0073b1c6; version=d0eeafad118940fe445ca00f45be5624fea2ec34 <38245f2d62cd4d1f38a763a7b4045ab4565b30a0; version=d0eeafad118940fe445ca00f45be5624fea2ec34 <4494ec1c0bb850eaa80fed98e5b041d961011d3e; version=d0eeafad118940fe445ca00f45be5624fea2ec34 <54a3201f3c1ff813523937da78b5fa7649dbab71; version=d0eeafad118940fe445ca00f45be5624fea2ec34 <f020d9570a04df0762a2ac5c50cf1d8c511c9164; version=d0eeafad118940fe445ca00f45be5624fea2ec34 <f12fc305c127bd07bb50373e29c6037696f916a8

Published CVSS scores

No CVSS assessment is available in this record.

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

Weakness, pattern, technique

T1499.004Endpoint Denial of Service: Application or System Exploitation

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

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Your stack

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