CVE-2026-97435
Low risk· EPSS 5%Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
In the Linux kernel, the DSA sja1105 driver's dsa_port_from_netdev() may return a port belonging to a different switch chip. Programming another chip's port index into the local hardware causes redirection to the wrong port or an out-of-bounds access if the index exceeds the local chip's port count.
Risk Assessment
This can lead to misrouted network traffic or out-of-bounds memory access, potentially causing system instability or incorrect packet processing.
Recommendation
Update the Linux kernel to a version containing the fix that rejects cross-chip redirect in the sja1105 driver.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: net: dsa: sja1105: flower: reject cross-chip redirect dsa_port_from_netdev() may return a valid port from a different switch chip. Programming another chip's port index into the local hardware causes redirection to the wrong port, or an out-of-bounds access if the index exceeds the local chip's port count. Apply a minimal fix that adds a check to catch this case and adjusts the extack message. When cls->common.skip_sw is not set, the operation could instead redirect to the upstream port and let the software or upstream switch(es) handle the forward, but that is not addressed here.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS