CVE-2026-63923

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The sibling\nrvu_mbox_handler_esw_cfg() refuses requests whose header pcifunc\nis not rvu->rep_pcifunc; this handler has no equivalent gate.\n\nAn out-of-range body pcifunc selects an &rvu->pf[]/&rvu->hwvf[]\nelement past the allocated array and, for RVU_EVENT_MAC_ADDR_CHANGE,\nturns into a six-byte attacker-chosen OOB ether_addr_copy() target\ninside the queued worker; KASAN reports a slab-out-of-bounds write\nin rvu_rep_wq_handler.\n\nReject malformed requests at the handler entry by gating on\nis_pf_func_valid(), which is already the canonical PF/VF range check\nin this driver; expose it via rvu.h so callers in rvu_rep.c can use\nit instead of open-coding the same range arithmetic."}], "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 - The bug is reached through the OcteonTX2 VF\u2192PF\u2192AF PCI mailbox control path, not through packet reception or any network protocol. Exploitation requires local access to an assigned SR-IOV VF device on a Marvell OCTEONTX2/CN9K/CN10K NIC.\nAC:L - Once a VF is assigned in switchdev representor mode, the attacker fully controls the malicious `rep_event` body fields (including `pcifunc`, event flags, and MAC data) and can trigger the path deterministically via repeated mailbox messages without races or uncontrollable timing.\nPR:L - Exploitation requires control of an assigned VF (typical cloud/tenant VM or container with SR-IOV passthrough), not host root; the PF mailbox forwarder passes every VF message ID including `MBOX_MSG_REP_EVENT_NOTIFY` to AF without an allowlist or trusted-VF gate on this path.\nUI:N - No victim user action (mounting, clicking, opening files) is required; the attacker triggers the vulnerable handler directly by sending a crafted mailbox message from their VF.\nS:C - In the highest-impact deployment (SR-IOV VF assigned to an untrusted VM/container tenant), corruption occurs in the host AF driver, crossing the guest/host security boundary analogous to device-mediated VM escape rather than a same-authority local privilege change.\nC:H - An out-of-range body `pcifunc` makes `rvu_get_pfvf()` return a pointer past the allocated `rvu->pf[]`/`rvu->hwvf[]` arrays, and the slab-out-of-bounds write corrupts adjacent kernel heap memory in a way that can be leveraged for arbitrary kernel memory disclosure.\nI:H - For `RVU_EVENT_MAC_ADDR_CHANGE`, the worker performs a six-byte attacker-chosen `ether_addr_copy()` to an out-of-bounds `rvu_pfvf` target, constituting an exploitable out-of-bounds kernel heap write suitable for control-flow or privilege-escalation primitives.\nA:H - The out-of-bounds heap write in `rvu_rep_wq_handler` can trigger a kernel oops/panic (as confirmed by KASAN slab-out-of-bounds reports) and can be repeated on demand to deny service to the host."}]}], "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.c", "drivers/net/ethernet/marvell/octeontx2/af/rvu.h", "drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c"], "versions": [{"version": "b8fea84a0468404fe3b3327ad54d583950be9dec", "lessThan": "4467fa514482bbce82f73788943c815f3d126ab3", "status": "affected", "versionType": "git"}, {"version": "b8fea84a0468404fe3b3327ad54d583950be9dec", "lessThan": "68be0260e2a02ff9b18a8678d5f8d1715fa20138", "status": "affected", "versionType": "git"}, {"version": "b8fea84a0468404fe3b3327ad54d583950be9dec", "lessThan": "2156a29aecfffa2eb7c558255690084efbe9f3b0", "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.c", "drivers/net/ethernet/marvell/octeontx2/af/rvu.h", "drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.12", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.13", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.0.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4467fa514482bbce82f73788943c815f3d126ab3"}, {"url": "https://git.kernel.org/stable/c/68be0260e2a02ff9b18a8678d5f8d1715fa20138"}, {"url": "https://git.kernel.org/stable/c/2156a29aecfffa2eb7c558255690084efbe9f3b0"}], "title": "octeontx2-af: validate body pcifunc in rvu_mbox_handler_rep_event_notify", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-63923", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:33:30.593492Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T20:17:56.756Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-63923", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:33:30.593492Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:33:31.181Z"}}], "cna": {"title": "octeontx2-af: validate body pcifunc in rvu_mbox_handler_rep_event_notify", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The bug is reached through the OcteonTX2 VF\u2192PF\u2192AF PCI mailbox control path, not through packet reception or any network protocol. Exploitation requires local access to an assigned SR-IOV VF device on a Marvell OCTEONTX2/CN9K/CN10K NIC.\nAC:L - Once a VF is assigned in switchdev representor mode, the attacker fully controls the malicious `rep_event` body fields (including `pcifunc`, event flags, and MAC data) and can trigger the path deterministically via repeated mailbox messages without races or uncontrollable timing.\nPR:L - Exploitation requires control of an assigned VF (typical cloud/tenant VM or container with SR-IOV passthrough), not host root; the PF mailbox forwarder passes every VF message ID including `MBOX_MSG_REP_EVENT_NOTIFY` to AF without an allowlist or trusted-VF gate on this path.\nUI:N - No victim user action (mounting, clicking, opening files) is required; the attacker triggers the vulnerable handler directly by sending a crafted mailbox message from their VF.\nS:C - In the highest-impact deployment (SR-IOV VF assigned to an untrusted VM/container tenant), corruption occurs in the host AF driver, crossing the guest/host security boundary analogous to device-mediated VM escape rather than a same-authority local privilege change.\nC:H - An out-of-range body `pcifunc` makes `rvu_get_pfvf()` return a pointer past the allocated `rvu->pf[]`/`rvu->hwvf[]` arrays, and the slab-out-of-bounds write corrupts adjacent kernel heap memory in a way that can be leveraged for arbitrary kernel memory disclosure.\nI:H - For `RVU_EVENT_MAC_ADDR_CHANGE`, the worker performs a six-byte attacker-chosen `ether_addr_copy()` to an out-of-bounds `rvu_pfvf` target, constituting an exploitable out-of-bounds kernel heap write suitable for control-flow or privilege-escalation primitives.\nA:H - The out-of-bounds heap write in `rvu_rep_wq_handler` can trigger a kernel oops/panic (as confirmed by KASAN slab-out-of-bounds reports) and can be repeated on demand to deny service to the host."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "b8fea84a0468404fe3b3327ad54d583950be9dec", "lessThan": "4467fa514482bbce82f73788943c815f3d126ab3", "versionType": "git"}, {"status": "affected", "version": "b8fea84a0468404fe3b3327ad54d583950be9dec", "lessThan": "68be0260e2a02ff9b18a8678d5f8d1715fa20138", "versionType": "git"}, {"status": "affected", "version": "b8fea84a0468404fe3b3327ad54d583950be9dec", "lessThan": "2156a29aecfffa2eb7c558255690084efbe9f3b0", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/marvell/octeontx2/af/rvu.c", "drivers/net/ethernet/marvell/octeontx2/af/rvu.h", "drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"status": "unaffected", "version": "0", "lessThan": "6.13", "versionType": "semver"}, {"status": "unaffected", "version": "6.18.42", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.12", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/marvell/octeontx2/af/rvu.c", "drivers/net/ethernet/marvell/octeontx2/af/rvu.h", "drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/4467fa514482bbce82f73788943c815f3d126ab3"}, {"url": "https://git.kernel.org/stable/c/68be0260e2a02ff9b18a8678d5f8d1715fa20138"}, {"url": "https://git.kernel.org/stable/c/2156a29aecfffa2eb7c558255690084efbe9f3b0"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: validate body pcifunc in rvu_mbox_handler_rep_event_notify\n\nrvu_mbox_handler_rep_event_notify() in drivers/net/ethernet/marvell/\nocteontx2/af/rvu_rep.c queues a sender-controlled REP_EVENT_NOTIFY\nrequest body verbatim, and rvu_rep_up_notify() then forwards\nevent->pcifunc (the nested body field, distinct from the\nAF-normalised header pcifunc) into rvu_get_pfvf(), rvu_get_pf() and\nthe AF->PF mailbox device index without any bounds check.\n\nA VF attached to a PF that has been put into switchdev\nrepresentor mode reaches this path: the VF mailbox handler\notx2_pfvf_mbox_handler() forwards every message id including\nMBOX_MSG_REP_EVENT_NOTIFY to AF without an allowlist, and the AF\ndispatcher rewrites only msg->pcifunc, leaving struct\nrep_event::pcifunc attacker-controlled. The sibling\nrvu_mbox_handler_esw_cfg() refuses requests whose header pcifunc\nis not rvu->rep_pcifunc; this handler has no equivalent gate.\n\nAn out-of-range body pcifunc selects an &rvu->pf[]/&rvu->hwvf[]\nelement past the allocated array and, for RVU_EVENT_MAC_ADDR_CHANGE,\nturns into a six-byte attacker-chosen OOB ether_addr_copy() target\ninside the queued worker; KASAN reports a slab-out-of-bounds write\nin rvu_rep_wq_handler.\n\nReject malformed requests at the handler entry by gating on\nis_pf_func_valid(), which is already the canonical PF/VF range check\nin this driver; expose it via rvu.h so callers in rvu_rep.c can use\nit instead of open-coding the same range arithmetic."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.42", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0.12", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1", "versionStartIncluding": "6.13"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:37:18.035Z"}}}, "cveMetadata": {"cveId": "CVE-2026-63923", "state": "PUBLISHED", "dateUpdated": "2026-10-19T20:17:56.756Z", "dateReserved": "2026-07-19T07:54:57.021Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-07-19T14:55:24.985Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/marvell/octeontx2/af/rvu.c", "drivers/net/ethernet/marvell/octeontx2/af/rvu.h", "drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "4467fa514482bbce82f73788943c815f3d126ab3", "status": "affected", "version": "b8fea84a0468404fe3b3327ad54d583950be9dec", "versionType": "git"}, {"lessThan": "68be0260e2a02ff9b18a8678d5f8d1715fa20138", "status": "affected", "version": "b8fea84a0468404fe3b3327ad54d583950be9dec", "versionType": "git"}, {"lessThan": "2156a29aecfffa2eb7c558255690084efbe9f3b0", "status": "affected", "version": "b8fea84a0468404fe3b3327ad54d583950be9dec", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/marvell/octeontx2/af/rvu.c", "drivers/net/ethernet/marvell/octeontx2/af/rvu.h", "drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.12", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1CD263AE-3BD4-43F3-AF24-6BA22541E0C2", "versionEndExcluding": "6.18.42", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "9161A938-0FA8-44BC-95FE-C5A271601AB3", "versionEndExcluding": "7.0.12", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*", "matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*", "matchCriteriaId": "E5910A9D-F60A-409A-B486-FE66BFEBA9B9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*", "matchCriteriaId": "81DFF19E-9CF8-49C6-8C36-1E4038622933", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: validate body pcifunc in rvu_mbox_handler_rep_event_notify\n\nrvu_mbox_handler_rep_event_notify() in drivers/net/ethernet/marvell/\nocteontx2/af/rvu_rep.c queues a sender-controlled REP_EVENT_NOTIFY\nrequest body verbatim, and rvu_rep_up_notify() then forwards\nevent->pcifunc (the nested body field, distinct from the\nAF-normalised header pcifunc) into rvu_get_pfvf(), rvu_get_pf() and\nthe AF->PF mailbox device index without any bounds check.\n\nA VF attached to a PF that has been put into switchdev\nrepresentor mode reaches this path: the VF mailbox handler\notx2_pfvf_mbox_handler() forwards every message id including\nMBOX_MSG_REP_EVENT_NOTIFY to AF without an allowlist, and the AF\ndispatcher rewrites only msg->pcifunc, leaving struct\nrep_event::pcifunc attacker-controlled. The sibling\nrvu_mbox_handler_esw_cfg() refuses requests whose header pcifunc\nis not rvu->rep_pcifunc; this handler has no equivalent gate.\n\nAn out-of-range body pcifunc selects an &rvu->pf[]/&rvu->hwvf[]\nelement past the allocated array and, for RVU_EVENT_MAC_ADDR_CHANGE,\nturns into a six-byte attacker-chosen OOB ether_addr_copy() target\ninside the queued worker; KASAN reports a slab-out-of-bounds write\nin rvu_rep_wq_handler.\n\nReject malformed requests at the handler entry by gating on\nis_pf_func_valid(), which is already the canonical PF/VF range check\nin this driver; expose it via rvu.h so callers in rvu_rep.c can use\nit instead of open-coding the same range arithmetic."}], "id": "CVE-2026-63923", "lastModified": "2026-10-27T12:58:37.250", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-63923", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:33:30.593492Z", "version": "2.0.3"}}]}, "published": "2026-07-19T16:17:10.560", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2156a29aecfffa2eb7c558255690084efbe9f3b0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4467fa514482bbce82f73788943c815f3d126ab3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/68be0260e2a02ff9b18a8678d5f8d1715fa20138"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: octeontx2-af: validate body pcifunc in rvu_mbox_handler_rep_event_notify", "id": "2502418", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502418"}, "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-787", "details": ["A flaw was found in the Linux kernel's `octeontx2-af` driver. A malicious Virtual Function (VF) attached to a Physical Function (PF) in switchdev representor mode can send a specially crafted `REP_EVENT_NOTIFY` message. This message contains an unvalidated `pcifunc` field, which can lead to an out-of-bounds write in the `rvu_rep_wq_handler`. This vulnerability can result in memory corruption, potentially leading to a denial of service."], "name": "CVE-2026-63923", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "impact": "important", "package_name": "erlang27", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63923\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63923\nhttps://lore.kernel.org/linux-cve-announce/2026071948-CVE-2026-63923-8d3f@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b8fea84a0468404fe3b3327ad54d583950be9dec,68be0260e2a02ff9b18a8678d5f8d1715fa20138)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b8fea84a0468404fe3b3327ad54d583950be9dec,2156a29aecfffa2eb7c558255690084efbe9f3b0)"}}], "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": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.12,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-07-21T06:30:02.542715+00:00", "updated": "2026-08-04T06:45:03.765862+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}