CVE-2026-97600: Linux kernel · ieee802154: cc2520: fix FIFOP work use-after-free
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 14:05 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix has been implemented in the Linux kernel to address this vulnerability by properly disabling the work during device removal. Users should apply the official kernel updates that include this fix. Since this is a kernel-level issue, upgrading to a patched kernel version is the recommended remediation.
Description
A use-after-free vulnerability was identified and resolved in the Linux kernel's ieee802154 cc2520 driver. The issue involved the FIFOP interrupt handler queuing work after the device's private data had been released during removal, due to improper work disabling. This could lead to the handler running after removal, potentially causing instability or crashes.
References
- ubuntu.com/security/CVE-2026-97600 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97600 (opens in a new tab)
- git.kernel.org/stable/c/56a9919d8494fb118eebf167bef0622528fbf2e7 (opens in a new tab)
- git.kernel.org/stable/c/ff5891b266a7fc6a062710836be84f1cc19338b5 (opens in a new tab)
- git.kernel.org/stable/c/c68fd52c73b676aee67020011e98fea125a978f4 (opens in a new tab)
- git.kernel.org/stable/c/890a80d516a1447db5c21bf92841a82914ea897d (opens in a new tab)