CVE-2026-97435: Linux kernel · net: dsa: sja1105: flower: reject cross-chip redirect
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 24 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 minimal fix has been applied to the Linux kernel that adds a check to prevent cross-chip port redirection in the affected function. 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 vulnerability in the Linux kernel's net: dsa: sja1105: flower component could allow redirection to an incorrect port on a different switch chip or cause out-of-bounds access. This occurs because the function dsa_port_from_netdev() may return a valid port from another chip, leading to misdirected traffic or memory access errors. A minimal fix has been applied to add a check preventing this cross-chip redirect issue.
References
- ubuntu.com/security/CVE-2026-97435 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97435 (opens in a new tab)
- git.kernel.org/stable/c/abd7511e12b231798332afa04ed9bee9e84f9445 (opens in a new tab)
- git.kernel.org/stable/c/cfa5274a5dc2a23b957da5dc806d2ac0c7a66af0 (opens in a new tab)
- git.kernel.org/stable/c/c999cc39775381b68ed66eae57c1425452672c0f (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97435 (opens in a new tab)
- git.kernel.org/stable/c/277f8611e017d3ff1ab06af58a6c538b55da1cc8 (opens in a new tab)
- git.kernel.org/stable/c/6bf5158af52a5293e9160d8f2992c629ca14aa7d (opens in a new tab)
- git.kernel.org/stable/c/d0e54098c072b6064cdcf8039075ada8b88583da (opens in a new tab)
- git.kernel.org/stable/c/eb177aa00c392de3dc530c34f173a962216f82dd (opens in a new tab)