CVE-2026-43034 (GCVE-0-2026-43034)
Vulnerability from cvelistv5 – Published: 2026-05-01 14:15 – Updated: 2026-05-01 14:15
VLAI?
Title
bnxt_en: set backing store type from query type
Summary
In the Linux kernel, the following vulnerability has been resolved:
bnxt_en: set backing store type from query type
bnxt_hwrm_func_backing_store_qcaps_v2() stores resp->type from the
firmware response in ctxm->type and later uses that value to index
fixed backing-store metadata arrays such as ctx_arr[] and
bnxt_bstore_to_trace[].
ctxm->type is fixed by the current backing-store query type and matches
the array index of ctx->ctx_arr. Set ctxm->type from the current loop
variable instead of depending on resp->type.
Also update the loop to advance type from next_valid_type in the for
statement, which keeps the control flow simpler for non-valid and
unchanged entries.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
6a4d0774f02d61f8c75ffe2e38a8553410fe52e9 , < c8d53b70166d1dc463ef42adb7293e1a770822c7
(git)
Affected: 6a4d0774f02d61f8c75ffe2e38a8553410fe52e9 , < 29732b68a6816a815d58e9ab229844c23617e1e0 (git) Affected: 6a4d0774f02d61f8c75ffe2e38a8553410fe52e9 , < 4ee937107d52f9e5c350e4b5e629760e328b3d9f (git) |
||
{
"containers": {
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"programFiles": [
"drivers/net/ethernet/broadcom/bnxt/bnxt.c"
],
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"versionType": "git"
},
{
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"programFiles": [
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
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"version": "0",
"versionType": "semver"
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{
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"version": "6.18.22",
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{
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"status": "unaffected",
"version": "6.19.12",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
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{
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: set backing store type from query type\n\nbnxt_hwrm_func_backing_store_qcaps_v2() stores resp-\u003etype from the\nfirmware response in ctxm-\u003etype and later uses that value to index\nfixed backing-store metadata arrays such as ctx_arr[] and\nbnxt_bstore_to_trace[].\n\nctxm-\u003etype is fixed by the current backing-store query type and matches\nthe array index of ctx-\u003ectx_arr. Set ctxm-\u003etype from the current loop\nvariable instead of depending on resp-\u003etype.\n\nAlso update the loop to advance type from next_valid_type in the for\nstatement, which keeps the control flow simpler for non-valid and\nunchanged entries."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-01T14:15:33.260Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"url": "https://git.kernel.org/stable/c/c8d53b70166d1dc463ef42adb7293e1a770822c7"
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{
"url": "https://git.kernel.org/stable/c/29732b68a6816a815d58e9ab229844c23617e1e0"
},
{
"url": "https://git.kernel.org/stable/c/4ee937107d52f9e5c350e4b5e629760e328b3d9f"
}
],
"title": "bnxt_en: set backing store type from query type",
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"cveId": "CVE-2026-43034",
"datePublished": "2026-05-01T14:15:33.260Z",
"dateReserved": "2026-05-01T14:12:55.977Z",
"dateUpdated": "2026-05-01T14:15:33.260Z",
"state": "PUBLISHED"
},
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"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-43034",
"date": "2026-05-04",
"epss": "0.00017",
"percentile": "0.04067"
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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