{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43034", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.977Z", "datePublished": "2026-05-01T14:15:33.260Z", "dateUpdated": "2026-05-01T14:15:33.260Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-01T14:15:33.260Z"}, "descriptions": [{"lang": "en", "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->type from the\nfirmware response in ctxm->type and later uses that value to index\nfixed backing-store metadata arrays such as ctx_arr[] and\nbnxt_bstore_to_trace[].\n\nctxm->type is fixed by the current backing-store query type and matches\nthe array index of ctx->ctx_arr. Set ctxm->type from the current loop\nvariable instead of depending on resp->type.\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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/broadcom/bnxt/bnxt.c"], "versions": [{"version": "6a4d0774f02d61f8c75ffe2e38a8553410fe52e9", "lessThan": "c8d53b70166d1dc463ef42adb7293e1a770822c7", "status": "affected", "versionType": "git"}, {"version": "6a4d0774f02d61f8c75ffe2e38a8553410fe52e9", "lessThan": "29732b68a6816a815d58e9ab229844c23617e1e0", "status": "affected", "versionType": "git"}, {"version": "6a4d0774f02d61f8c75ffe2e38a8553410fe52e9", "lessThan": "4ee937107d52f9e5c350e4b5e629760e328b3d9f", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/broadcom/bnxt/bnxt.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.22", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.12", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.18.22"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.19.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c8d53b70166d1dc463ef42adb7293e1a770822c7"}, {"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", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "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->type from the\nfirmware response in ctxm->type and later uses that value to index\nfixed backing-store metadata arrays such as ctx_arr[] and\nbnxt_bstore_to_trace[].\n\nctxm->type is fixed by the current backing-store query type and matches\nthe array index of ctx->ctx_arr. Set ctxm->type from the current loop\nvariable instead of depending on resp->type.\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."}], "id": "CVE-2026-43034", "lastModified": "2026-05-01T15:24:14.893", "metrics": {}, "published": "2026-05-01T15:16:48.037", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/29732b68a6816a815d58e9ab229844c23617e1e0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4ee937107d52f9e5c350e4b5e629760e328b3d9f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c8d53b70166d1dc463ef42adb7293e1a770822c7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: bnxt_en: set backing store type from query type", "id": "2464479", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464479"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-823", "details": ["A flaw was found in the `bnxt_en` driver within the Linux kernel. This vulnerability arises from the `bnxt_hwrm_func_backing_store_qcaps_v2()` function using an incorrect type value from the firmware response to index internal data arrays. This improper indexing could lead to memory corruption, potentially causing system instability or a Denial of Service (DoS)."], "name": "CVE-2026-43034", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43034\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43034\nhttps://lore.kernel.org/linux-cve-announce/2026050102-CVE-2026-43034-f539@gregkh/T"], "threat_severity": "Moderate"}