ieee802154: cc2520: fix FIFOP work use-after-free

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-97600
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 11:17:11 UTC
Updated2026-09-25 11:17:11 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.002000000 probability, percentile 0.088270000 (date 2026-09-27)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0da6bc8cc3417a5e452efb886ff2c61e72b743d6 56a9919d8494fb118eebf167bef0622528fbf2e7 git Not specified
CNA Linux Linux affected 0da6bc8cc3417a5e452efb886ff2c61e72b743d6 c68fd52c73b676aee67020011e98fea125a978f4 git Not specified
CNA Linux Linux affected 0da6bc8cc3417a5e452efb886ff2c61e72b743d6 890a80d516a1447db5c21bf92841a82914ea897d git Not specified
CNA Linux Linux affected 0da6bc8cc3417a5e452efb886ff2c61e72b743d6 ff5891b266a7fc6a062710836be84f1cc19338b5 git Not specified
CNA Linux Linux affected 3.17 Not specified
CNA Linux Linux unaffected 3.17 semver Not specified
CNA Linux Linux unaffected 6.12.111 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.7 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/890a80d516a1447db5c21bf92841a82914ea897d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c68fd52c73b676aee67020011e98fea125a978f4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/56a9919d8494fb118eebf167bef0622528fbf2e7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ff5891b266a7fc6a062710836be84f1cc19338b5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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