CVE-2026-97435

net: dsa: sja1105: flower: reject cross-chip redirect

N/A
Published: September 24, 2026 at 04:03 PM UTC
Updated: October 3, 2026 at 11:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.8 ≤ v < 5.10.2715.8 ≤ v < 5.15.2225.8 ≤ v < 6.1.1895.8 ≤ v < 6.12.1115.8 ≤ v < 6.18.535.8 ≤ v < 6.6.1585.8 ≤ v < 7.25.8dfacc5a23e227cabdff41b6202f510398e90d36b
Vendor states this is fixed in 277f8611e017d3ff1ab06af58a6c538b55da1cc8 (fixed)
Vendor states this is fixed in 6bf5158af52a5293e9160d8f2992c629ca14aa7d (fixed)
Vendor states this is fixed in abd7511e12b231798332afa04ed9bee9e84f9445 (fixed)
Vendor states this is fixed in c999cc39775381b68ed66eae57c1425452672c0f (fixed)
Vendor states this is fixed in cfa5274a5dc2a23b957da5dc806d2ac0c7a66af0 (fixed)
Vendor states this is fixed in d0e54098c072b6064cdcf8039075ada8b88583da (fixed)
Vendor states this is fixed in eb177aa00c392de3dc530c34f173a962216f82dd (fixed)
Vendor states this is fixed in 5.10.271 (unaffected)
Vendor states this is fixed in 5.15.222 (unaffected)
Vendor states this is fixed in 5.8 (unaffected)
Vendor states this is fixed in 6.1.189 (unaffected)
Vendor states this is fixed in 6.12.111 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.6.158 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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