{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72045", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.902Z", "datePublished": "2026-08-15T05:52:04.038Z", "dateUpdated": "2026-08-23T12:46:33.156Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-23T12:46:33.156Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF\n\nrvu_mbox_handler_lmtst_tbl_setup() uses req->base_pcifunc as a direct\nindex into the LMT map table to read another function's LMTLINE\nphysical base address and copy it into the caller's own LMT map table\nentry. The mailbox dispatcher authenticates req->hdr.pcifunc from the\nIRQ source, but req->base_pcifunc is a separate payload field and is\nnot sanitized.\n\nReject the request with -EPERM when a VF caller's base_pcifunc is not a\nvalid function under its own PF. is_pf_func_valid() bounds the FUNC field\nto the PF's configured VF count, keeping the computed index inside the\ncaller's own slot block."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - Exploitation requires local control of an assigned Marvell CN10K/OCTEONTX2 SR-IOV VF and sending a crafted LMTST_TBL_SETUP mailbox message over the PCI VF\u2192AF control path (rvu_afvf_mbox_handler\u2192rvu_mbox_handler_lmtst_tbl_setup); it is not reachable via remote packet delivery.\nAC:L - Once a VF is assigned, the attacker fully controls the unsanitized base_pcifunc payload field and can trigger the flaw deterministically with a single mailbox message; no race, special memory layout, or victim timing is required.\nPR:L - Only control of an assigned VF is needed (typical cloud/tenant VM or container with SR-IOV passthrough, or guest root/CAP_NET_ADMIN managing the VF); host init-namespace root is not required and unprivileged host users cannot reach this hardware mailbox without the VF device.\nUI:N - No victim user action is required; the attacker directly sends the malicious LMTST_TBL_SETUP mailbox request from their VF to the AF handler.\nS:C - A malicious VF tenant can retarget hardware LMTLINE stores to another PF/VF's memory region, crossing the SR-IOV tenant isolation boundary and enabling guest-to-host or guest-to-guest impact on shared CN10K NIC deployments.\nC:H - Redirecting a VF's LMT map entry to another function's LMTLINE region lets the attacker read victim in-flight packet/crypto submission metadata and buffer pointers from shared hardware LMT memory, constituting cross-tenant information disclosure beyond the attacker's scope.\nI:H - After the map-table redirect, the attacker's LMTST flush operations (packet TX SQE submission, NPA aura free, CPT enqueue) are hardware-written into the victim's LMTLINE physical pages, enabling arbitrary cross-tenant memory corruption and potential control of victim I/O submission state.\nA:H - Corrupting another PF/VF's LMTLINE submission buffers can crash or hang the victim's networking/crypto stack (guest kernel oops/panic or persistent TX failure) and the attack can be repeated on demand by resending mailbox requests."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c"], "versions": [{"version": "893ae97214c385be02f8ec097298cc48c7f0d905", "lessThan": "04c014e49b9f53d58a8f94adece8a0af3ae1b85c", "status": "affected", "versionType": "git"}, {"version": "893ae97214c385be02f8ec097298cc48c7f0d905", "lessThan": "6967dd944be2a71eddab3a2ae1a1a4dd9e5f8eed", "status": "affected", "versionType": "git"}, {"version": "893ae97214c385be02f8ec097298cc48c7f0d905", "lessThan": "e9c5b03208507dd6d58b0c23a2c60b5c2f4c1b11", "status": "affected", "versionType": "git"}, {"version": "893ae97214c385be02f8ec097298cc48c7f0d905", "lessThan": "54535692bec9ef464adc714108eb19e49e38b5a2", "status": "affected", "versionType": "git"}, {"version": "893ae97214c385be02f8ec097298cc48c7f0d905", "lessThan": "c73b8795b45f4ad5a95120d2e9b435ea4616e08e", "status": "affected", "versionType": "git"}, {"version": "893ae97214c385be02f8ec097298cc48c7f0d905", "lessThan": "59da37fee81a8d76079313348ca13c5bc90dd6ae", "status": "affected", "versionType": "git"}, {"version": "893ae97214c385be02f8ec097298cc48c7f0d905", "lessThan": "8cdcf3d2caacdee7ddd363705fb4d93b0c1a0915", "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/marvell/octeontx2/af/rvu_cn10k.c"], "versions": [{"version": "5.14", "status": "affected"}, {"version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.217", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.184", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "5.14", "versionEndExcluding": "5.15.217"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.1.184"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/04c014e49b9f53d58a8f94adece8a0af3ae1b85c"}, {"url": "https://git.kernel.org/stable/c/6967dd944be2a71eddab3a2ae1a1a4dd9e5f8eed"}, {"url": "https://git.kernel.org/stable/c/e9c5b03208507dd6d58b0c23a2c60b5c2f4c1b11"}, {"url": "https://git.kernel.org/stable/c/54535692bec9ef464adc714108eb19e49e38b5a2"}, {"url": "https://git.kernel.org/stable/c/c73b8795b45f4ad5a95120d2e9b435ea4616e08e"}, {"url": "https://git.kernel.org/stable/c/59da37fee81a8d76079313348ca13c5bc90dd6ae"}, {"url": "https://git.kernel.org/stable/c/8cdcf3d2caacdee7ddd363705fb4d93b0c1a0915"}], "title": "octeontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "04c014e49b9f53d58a8f94adece8a0af3ae1b85c", "status": "affected", "version": "893ae97214c385be02f8ec097298cc48c7f0d905", "versionType": "git"}, {"lessThan": "6967dd944be2a71eddab3a2ae1a1a4dd9e5f8eed", "status": "affected", "version": "893ae97214c385be02f8ec097298cc48c7f0d905", "versionType": "git"}, {"lessThan": "e9c5b03208507dd6d58b0c23a2c60b5c2f4c1b11", "status": "affected", "version": "893ae97214c385be02f8ec097298cc48c7f0d905", "versionType": "git"}, {"lessThan": "54535692bec9ef464adc714108eb19e49e38b5a2", "status": "affected", "version": "893ae97214c385be02f8ec097298cc48c7f0d905", "versionType": "git"}, {"lessThan": "c73b8795b45f4ad5a95120d2e9b435ea4616e08e", "status": "affected", "version": "893ae97214c385be02f8ec097298cc48c7f0d905", "versionType": "git"}, {"lessThan": "59da37fee81a8d76079313348ca13c5bc90dd6ae", "status": "affected", "version": "893ae97214c385be02f8ec097298cc48c7f0d905", "versionType": "git"}, {"lessThan": "8cdcf3d2caacdee7ddd363705fb4d93b0c1a0915", "status": "affected", "version": "893ae97214c385be02f8ec097298cc48c7f0d905", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.14"}, {"lessThan": "5.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.217", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.184", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF\n\nrvu_mbox_handler_lmtst_tbl_setup() uses req->base_pcifunc as a direct\nindex into the LMT map table to read another function's LMTLINE\nphysical base address and copy it into the caller's own LMT map table\nentry. The mailbox dispatcher authenticates req->hdr.pcifunc from the\nIRQ source, but req->base_pcifunc is a separate payload field and is\nnot sanitized.\n\nReject the request with -EPERM when a VF caller's base_pcifunc is not a\nvalid function under its own PF. is_pf_func_valid() bounds the FUNC field\nto the PF's configured VF count, keeping the computed index inside the\ncaller's own slot block."}], "id": "CVE-2026-72045", "lastModified": "2026-08-23T13:16:38.160", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-08-15T06:21:13.700", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/04c014e49b9f53d58a8f94adece8a0af3ae1b85c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/54535692bec9ef464adc714108eb19e49e38b5a2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/59da37fee81a8d76079313348ca13c5bc90dd6ae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6967dd944be2a71eddab3a2ae1a1a4dd9e5f8eed"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8cdcf3d2caacdee7ddd363705fb4d93b0c1a0915"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c73b8795b45f4ad5a95120d2e9b435ea4616e08e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e9c5b03208507dd6d58b0c23a2c60b5c2f4c1b11"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: octeontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF", "id": "2516639", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516639"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-1285", "details": ["A flaw was found in the Linux kernel component `octeontx2-af`. A local attacker with access to a Virtual Function (VF) could exploit an unsanitized input in the `rvu_mbox_handler_lmtst_tbl_setup()` function. This vulnerability allows the VF to read the physical base address of another function's LMTLINE, which could lead to information disclosure and unauthorized access to sensitive system memory."], "name": "CVE-2026-72045", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72045\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72045\nhttps://lore.kernel.org/linux-cve-announce/2026081514-CVE-2026-72045-21ac@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[893ae97214c385be02f8ec097298cc48c7f0d905,e9c5b03208507dd6d58b0c23a2c60b5c2f4c1b11)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[893ae97214c385be02f8ec097298cc48c7f0d905,54535692bec9ef464adc714108eb19e49e38b5a2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[893ae97214c385be02f8ec097298cc48c7f0d905,c73b8795b45f4ad5a95120d2e9b435ea4616e08e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[893ae97214c385be02f8ec097298cc48c7f0d905,59da37fee81a8d76079313348ca13c5bc90dd6ae)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[893ae97214c385be02f8ec097298cc48c7f0d905,8cdcf3d2caacdee7ddd363705fb4d93b0c1a0915)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T08:00:06.710385+00:00", "updated": "2026-08-18T02:15:04.926825+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-1285", "CWE-20", "CWE-284"]}