net: dsa: sja1105: flower: reject cross-chip redirect
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.
CVE-2026-97435
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-97435
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
"lessThan": "6bf5158af52a5293e9160d8f2992c629ca14aa7d",
"versionType": "git"
},
{
"status": "affected",
"version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
"lessThan": "277f8611e017d3ff1ab06af58a6c538b55da1cc8",
"versionType": "git"
},
{
"status": "affected",
"version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
"lessThan": "eb177aa00c392de3dc530c34f173a962216f82dd",
"versionType": "git"
},
{
"status": "affected",
"version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
"lessThan": "d0e54098c072b6064cdcf8039075ada8b88583da",
"versionType": "git"
},
{
"status": "affected",
"version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
"lessThan": "c999cc39775381b68ed66eae57c1425452672c0f",
"versionType": "git"
},
{
"status": "affected",
"version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
"lessThan": "abd7511e12b231798332afa04ed9bee9e84f9445",
"versionType": "git"
},
{
"status": "affected",
"version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
"lessThan": "cfa5274a5dc2a23b957da5dc806d2ac0c7a66af0",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/dsa/sja1105/sja1105_flower.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/dsa/sja1105/sja1105_flower.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97435
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #8318 · Revision 1
- Added to Heist Feed
- Publisher date