CVE-2024-27056: wifi: iwlwifi: mvm: ensure offloading TID queue exists

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-01 · updated 2026-10-15

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: ensure offloading TID queue exists The resume code path assumes that the TX queue for the offloading TID has been configured. At resume time it then tries to sync the write pointer as it may have been updated by the firmware. In the unusual event that no packets have been send on TID 0, the queue will not have been allocated and this causes a crash. Fix this by ensuring the queue exist at suspend time.

Affected products

Linux kernel: before 6.1.132; from 6.2 before 6.6.85; from 6.7 before 6.7.11; 6.8-rc1, 6.8-rc2, 6.8-rc3, 6.8-rc4, 6.8-rc5, 6.8-rc6 — fixed in 6.1.132, 6.6.85, 6.7.11

How to fix

Upgrade to a fixed version: Linux kernel 6.1.132, 6.6.85, 6.7.11. Check the vendor advisory for mitigations.

References

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