CVE-2026-97435

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

cve-program · severity unknownCVSS unknownCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-97435

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-97435

Published

Linux

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/dsa/sja1105/sja1105_flower.c"
                    ],
                    "versions": [
                        {
                            "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
                            "lessThan": "6bf5158af52a5293e9160d8f2992c629ca14aa7d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
                            "lessThan": "277f8611e017d3ff1ab06af58a6c538b55da1cc8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
                            "lessThan": "eb177aa00c392de3dc530c34f173a962216f82dd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
                            "lessThan": "d0e54098c072b6064cdcf8039075ada8b88583da",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
                            "lessThan": "c999cc39775381b68ed66eae57c1425452672c0f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
                            "lessThan": "abd7511e12b231798332afa04ed9bee9e84f9445",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
                            "lessThan": "cfa5274a5dc2a23b957da5dc806d2ac0c7a66af0",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

Linux

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/dsa/sja1105/sja1105_flower.c"
                    ],
                    "versions": [
                        {
                            "version": "5.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.271",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.222",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON