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Review reviewHigh

CVE-2022-50880

Linux

In the Linux kernel, the following vulnerability has been resolved: wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state() When peer delete failed in a disconnect operation, use-after-free detected by KFENCE in below log. It is because for each vdev_id and address, it has only one struct ath10k_peer, it is allocated in ath10k_peer_map_event(). When connected to an AP, it has more than one HTT_T2H_MSG_TYPE_PEER_MAP reported from firmware, then the array peer_map of struct ath10k will be set muti-elements to the same ath10k_peer in ath10k_peer_map_event(). When peer delete...

CVSS
8.8
EPSS
0.29%
21.6% percentile
CISA KEV
Not listed
Published
2025.12.30
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.29%
Technical severityCVSS 8.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state() When peer delete failed in a disconnect operation, use-after-free detected by KFENCE in below log. It is because for each vdev_id and address, it has only one struct ath10k_peer, it is allocated in ath10k_peer_map_event(). When connected to an AP, it has more than one HTT_T2H_MSG_TYPE_PEER_MAP reported from firmware, then the array peer_map of struct ath10k will be set muti-elements to the same ath10k_peer in ath10k_peer_map_event(). When peer delete...

Affected product and versions

Product
Linux
Affected versions
>= d0eeafad118940fe445ca00f45be5624fea2ec34 < 15604ab67179ae27ea3c7fb24b6df32b143257c4, >= d0eeafad118940fe445ca00f45be5624fea2ec34 < 2d6259715c9597a6cfa25db8911683eb0073b1c6, >= d0eeafad118940fe445ca00f45be5624fea2ec34 < f12fc305c127bd07bb50373e29c6037696f916a8, >= d0eeafad118940fe445ca00f45be5624fea2ec34 < 4494ec1c0bb850eaa80fed98e5b041d961011d3e, >= d0eeafad118940fe445ca00f45be5624fea2ec34 < 08faf07717be0c88b02b5aa45aad2225dfcdd2dc, >= d0eeafad118940fe445ca00f45be5624fea2ec34 < 54a3201f3c1ff813523937da78b5fa7649dbab71, >= d0eeafad118940fe445ca00f45be5624fea2ec34 < 2bf916418d2141b810c40812433ab4ecfd3c2934, >= d0eeafad118940fe445ca00f45be5624fea2ec34 < 38245f2d62cd4d1f38a763a7b4045ab4565b30a0, >= d0eeafad118940fe445ca00f45be5624fea2ec34 < f020d9570a04df0762a2ac5c50cf1d8c511c9164, >= 4.8
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Not available
CVE-2022-50880 — Linux | SECUFOCUS NOW