CVE-2026-46152

High

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: drop stray 'static' from fast-RX rx_result ieee80211_invoke_fast_rx() is documented as safe for parallel RX, but its per-invocation rx_result is declared static. Concurrent callers then share one instance and can overwrite each other's result between ieee80211_rx_mesh_data() and the switch on res. That can make a packet that was queued or consumed by ieee80211_rx_mesh_data() fall through into ieee80211_rx_8023(), or make a packet that should continue return as queued. Make res an automatic variable so each invocation keeps its own result.

Package Linux Kernel
Published 2026-05-28
Last modified 2026-07-24
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

8.8

out of 10
High
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-1058

CVE-2026-46152 is classified as CWE-1058

See CWE-1058 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 6.4 and later are affected. Fixed in 6.6.140, 6.12.88, 6.18.30, 7.0.7, 7.1 and their respective stable series.

Affected from
≥ 6.4
Fixed in
✓ 6.6.140 6.6.x ✓ 6.12.88 6.12.x ✓ 6.18.30 6.18.x ✓ 7.0.7 7.0.x ✓ 7.1

References

15 total
Showing 5 of 15 references View all on NVD

Frequently asked questions

  • What is CVE-2026-46152?

    CVE-2026-46152 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 . It affects Linux kernel versions from 6.4 onward and has been patched in 6.6.140, 6.12.88, 6.18.30 and others. CVE-2026-46152 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2026-46152?

    CVE-2026-46152 has a CVSS score of 8.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2026-46152?

    Yes. CVE-2026-46152 has been patched. Fixed versions include 6.6.140, 6.12.88, 6.18.30 and others. If you are running Linux kernel 6.4 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-46152 actively exploited?

    No. CVE-2026-46152 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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