CVE-2024-56715

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This will also call ionic_lif_unregister_phc() if it has\nalready been registered."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - Both the creation of the dangling notifier (a local PCI driver probe of a Pensando/AMD ionic NIC) and the dereference (a local netdev event such as network-namespace creation) occur entirely on the local system; no network packet or remote peer data reaches this path.\nAC:L - Once probe has failed and left `ionic->nb` on `netdev_chain`, the freed-memory dereference is deterministic and infinitely repeatable \u2014 every `unshare -Urn`, container start, or `ip link` event walks the chain, with no race to win and no unpredictable memory layout required.\nPR:L - Reaching the dangling notifier requires no privilege beyond an ordinary local user: creating a network namespace via an unprivileged user namespace registers `lo` and fires `call_netdevice_notifiers(NETDEV_REGISTER)`, and the same user can groom the freed `struct ionic` region (kernel-stack/vmalloc and slab reclaim) to control the values read back.\nUI:N - No action by any victim user or administrator is needed at exploitation time; the attacker triggers the notifier chain walk himself through ordinary namespace or interface operations.\nS:U - The use-after-free corrupts kernel memory and hijacks control flow within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `notifier_call_chain()` reads `nb->next` and `nb->notifier_call` from the freed `struct ionic`, and the surviving `ionic_lif_notify()` callback further dereferences the stale `ionic`/`lif` pointers, so a reclaimed and attacker-shaped allocation yields an arbitrary kernel-read primitive.\nI:H - The chain walk performs `nb->notifier_call(nb, val, v)` on a function pointer loaded from freed memory \u2014 a direct indirect-call/control-flow-hijack primitive \u2014 and the corrupted `nb->next` linkage additionally lets a later `raw_notifier_chain_unregister()` write through attacker-influenced pointers.\nA:H - After a failed ionic probe the machine is left one netdev event away from an oops or panic in `notifier_call_chain()`, and any unprivileged user can force that crash on demand and repeatedly."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/pensando/ionic/ionic_lif.c"], "versions": [{"version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "lessThan": "87847938f5708b2509b279369c96572254bcf2ba", "status": "affected", "versionType": "git"}, {"version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "lessThan": "da93a12876f8b969df7316dc93aac7e725f88252", "status": "affected", "versionType": "git"}, {"version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "lessThan": "da5736f516a664a9e1ff74902663c64c423045d2", "status": "affected", "versionType": "git"}, {"version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "lessThan": "ee2e931b2b46de9af7f681258e8ec8e2cd81cfc6", "status": "affected", "versionType": "git"}, {"version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "lessThan": "9590d32e090ea2751e131ae5273859ca22f5ac14", "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/pensando/ionic/ionic_lif.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.176", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.122", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.68", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.7", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13", "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": "5.10", "versionEndExcluding": "5.15.176"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.1.122"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.6.68"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", 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no network packet or remote peer data reaches this path.\nAC:L - Once probe has failed and left `ionic->nb` on `netdev_chain`, the freed-memory dereference is deterministic and infinitely repeatable \u2014 every `unshare -Urn`, container start, or `ip link` event walks the chain, with no race to win and no unpredictable memory layout required.\nPR:L - Reaching the dangling notifier requires no privilege beyond an ordinary local user: creating a network namespace via an unprivileged user namespace registers `lo` and fires `call_netdevice_notifiers(NETDEV_REGISTER)`, and the same user can groom the freed `struct ionic` region (kernel-stack/vmalloc and slab reclaim) to control the values read back.\nUI:N - No action by any victim user or administrator is needed at exploitation time; the attacker triggers the notifier chain walk himself through ordinary namespace or interface operations.\nS:U - The use-after-free corrupts kernel memory and hijacks control flow within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `notifier_call_chain()` reads `nb->next` and `nb->notifier_call` from the freed `struct ionic`, and the surviving `ionic_lif_notify()` callback further dereferences the stale `ionic`/`lif` pointers, so a reclaimed and attacker-shaped allocation yields an arbitrary kernel-read primitive.\nI:H - The chain walk performs `nb->notifier_call(nb, val, v)` on a function pointer loaded from freed memory \u2014 a direct indirect-call/control-flow-hijack primitive \u2014 and the corrupted `nb->next` linkage additionally lets a later `raw_notifier_chain_unregister()` write through attacker-influenced pointers.\nA:H - After a failed ionic probe the machine is left one netdev event away from an oops or panic in `notifier_call_chain()`, and any unprivileged user can force that crash on demand and repeatedly."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "lessThan": "87847938f5708b2509b279369c96572254bcf2ba", "versionType": "git"}, {"status": "affected", "version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "lessThan": "da93a12876f8b969df7316dc93aac7e725f88252", "versionType": "git"}, {"status": "affected", "version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "lessThan": "da5736f516a664a9e1ff74902663c64c423045d2", "versionType": "git"}, {"status": "affected", "version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "lessThan": "ee2e931b2b46de9af7f681258e8ec8e2cd81cfc6", "versionType": "git"}, {"status": "affected", "version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "lessThan": "9590d32e090ea2751e131ae5273859ca22f5ac14", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/pensando/ionic/ionic_lif.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"status": "unaffected", "version": "0", "lessThan": "5.10", "versionType": "semver"}, {"status": "unaffected", "version": "5.15.176", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.122", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.68", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.7", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/pensando/ionic/ionic_lif.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/87847938f5708b2509b279369c96572254bcf2ba"}, {"url": "https://git.kernel.org/stable/c/da93a12876f8b969df7316dc93aac7e725f88252"}, {"url": "https://git.kernel.org/stable/c/da5736f516a664a9e1ff74902663c64c423045d2"}, {"url": "https://git.kernel.org/stable/c/ee2e931b2b46de9af7f681258e8ec8e2cd81cfc6"}, {"url": "https://git.kernel.org/stable/c/9590d32e090ea2751e131ae5273859ca22f5ac14"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nionic: Fix netdev notifier unregister on failure\n\nIf register_netdev() fails, then the driver leaks the netdev notifier.\nFix this by calling ionic_lif_unregister() on register_netdev()\nfailure. This will also call ionic_lif_unregister_phc() if it has\nalready been registered."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.176", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.122", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.68", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.7", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.13", "versionStartIncluding": "5.10"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:46:13.550Z"}}}, "cveMetadata": {"cveId": "CVE-2024-56715", "state": "PUBLISHED", "dateUpdated": "2026-08-05T11:46:13.550Z", "dateReserved": "2024-12-27T15:00:39.857Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-12-29T08:48:48.433Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/pensando/ionic/ionic_lif.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "87847938f5708b2509b279369c96572254bcf2ba", "status": "affected", "version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "versionType": "git"}, {"lessThan": "da93a12876f8b969df7316dc93aac7e725f88252", "status": "affected", "version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "versionType": "git"}, {"lessThan": "da5736f516a664a9e1ff74902663c64c423045d2", "status": "affected", "version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "versionType": "git"}, {"lessThan": "ee2e931b2b46de9af7f681258e8ec8e2cd81cfc6", "status": "affected", "version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "versionType": "git"}, {"lessThan": "9590d32e090ea2751e131ae5273859ca22f5ac14", "status": "affected", "version": "30b87ab4c0b30e0f681cb7dfaab6c642dd17e454", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/pensando/ionic/ionic_lif.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"lessThan": "5.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.176", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.122", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.68", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.13", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5CA30DA6-FB1E-4C3C-832B-31CC8322D57D", "versionEndExcluding": "5.15.176", "versionStartIncluding": "5.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "3B06AD1C-E7B3-4B24-A884-D3BE92CC042F", "versionEndExcluding": "6.1.122", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "74BA9823-CCED-4B24-815D-B82543954BF8", "versionEndExcluding": "6.6.68", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "811AC89A-14AC-49FA-9B54-E99526F1CA47", "versionEndExcluding": "6.12.7", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*", "matchCriteriaId": "62567B3C-6CEE-46D0-BC2E-B3717FBF7D13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*", "matchCriteriaId": "5A073481-106D-4B15-B4C7-FB0213B8E1D4", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*", "matchCriteriaId": "DE491969-75AE-4A6B-9A58-8FC5AF98798F", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nionic: Fix netdev notifier unregister on failure\n\nIf register_netdev() fails, then the driver leaks the netdev notifier.\nFix this by calling ionic_lif_unregister() on register_netdev()\nfailure. This will also call ionic_lif_unregister_phc() if it has\nalready been registered."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ionic: Arreglar la cancelaci\u00f3n del registro del notificador netdev en caso de error Si register_netdev() falla, el controlador filtra el notificador netdev. Solucione esto llamando a ionic_lif_unregister() en caso de error de register_netdev(). Esto tambi\u00e9n llamar\u00e1 a ionic_lif_unregister_phc() si ya se ha registrado."}], "id": "CVE-2024-56715", "lastModified": "2026-08-04T11:22:23.413", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-56715", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T19:58:37.829177Z", "version": "2.0.3"}}]}, "published": "2024-12-29T09:15:06.643", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/87847938f5708b2509b279369c96572254bcf2ba"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9590d32e090ea2751e131ae5273859ca22f5ac14"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da5736f516a664a9e1ff74902663c64c423045d2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da93a12876f8b969df7316dc93aac7e725f88252"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ee2e931b2b46de9af7f681258e8ec8e2cd81cfc6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-401"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: ionic: Fix netdev notifier unregister on failure", "id": "2334797", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334797"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H", "status": "draft"}, "cwe": "CWE-401", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nionic: Fix netdev notifier unregister on failure\nIf register_netdev() fails, then the driver leaks the netdev notifier.\nFix this by calling ionic_lif_unregister() on register_netdev()\nfailure. This will also call ionic_lif_unregister_phc() if it has\nalready been registered."], "name": "CVE-2024-56715", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "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": "2024-12-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56715\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56715\nhttps://lore.kernel.org/linux-cve-announce/2024122915-CVE-2024-56715-7db1@gregkh/T"], "threat_severity": "Low"}

{}