ieee802154: cc2520: fix FIFOP work use-after-free
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: ieee802154: cc2520: fix FIFOP work use-after-free The FIFOP interrupt handler queues cc2520_fifop_irqwork. On removal, cc2520_remove() only flushes the work. The devm-managed FIFOP IRQ remains active until after ->remove() returns and can queue the work again after that flush, allowing it to run after the private data is released. Disable the work with disable_work_sync() instead of flushing it, so the handler can no longer queue it once removal begins. Destroy the buffer mutex last, since the worker and the stop callback invoked through ieee802154_unregister_hw() both take it. Found by an in-house static analysis tool.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.6.160, 6.12.111, 6.18.53, 7.2.7, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97600
- 2026-10-03 Alias added: GHSA-rq9h-jcg5-92gp
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Fix available: Linux/Linux@4a1ba62a486a4c43af91d01661a95e82dc4aaefa, Linux/[email protected] · CNA
- 2026-10-21 1 new reference · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 5
- https://git.kernel.org/stable/c/4a1ba62a486a4c43af91d01661a95e82dc4aaefa
- https://git.kernel.org/stable/c/56a9919d8494fb118eebf167bef0622528fbf2e7
- https://git.kernel.org/stable/c/c68fd52c73b676aee67020011e98fea125a978f4
- https://git.kernel.org/stable/c/890a80d516a1447db5c21bf92841a82914ea897d
- https://git.kernel.org/stable/c/ff5891b266a7fc6a062710836be84f1cc19338b5
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Sources
- CVE-2026-97600 · CVE Program
- CVE-2026-97600 · NVD
- FIRST EPSS
- GHSA-rq9h-jcg5-92gp · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97600 · Red Hat security data · CC BY 4.0
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