CVE-2026-52913

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This results in a NULL pointer dereference when\nbatadv_v_ogm_queue_on_if() unconditionally calls netdev_priv() on the\nnow NULL hard_iface->mesh_iface to retrieve the batadv_priv.\n\nIt is necessary to ensure that the batadv_v_ogm_queue_on_if() checks that\nit is using the same mesh_iface for which batadv_v_ogm_send_meshif() was\ncalled."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/batman-adv/bat_v_ogm.c"], "versions": [{"version": "0da0035942d47766c32843143fb5dba7a29cb48c", "lessThan": "d7391a2b854a62235539c68e9cbf6fc7910a8e9a", "status": "affected", "versionType": "git"}, {"version": "0da0035942d47766c32843143fb5dba7a29cb48c", "lessThan": "70c9f6ab0d8f785087fb74fb85464a9a5288bfdb", "status": "affected", "versionType": "git"}, {"version": "0da0035942d47766c32843143fb5dba7a29cb48c", "lessThan": "040fe8eb34624002071dd21de9824dfe668ce65d", 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{}

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resolved:\n\nbatman-adv: v: stop OGMv2 on disabled interface\n\nWhen a batadv_hard_iface is disabled, its mesh_iface pointer is set to\nNULL. However, batadv_v_ogm_send_meshif() may still dispatch OGMs via\nbatadv_v_ogm_queue_on_if() for interfaces that have since lost their\nmesh_iface association. This results in a NULL pointer dereference when\nbatadv_v_ogm_queue_on_if() unconditionally calls netdev_priv() on the\nnow NULL hard_iface->mesh_iface to retrieve the batadv_priv.\n\nIt is necessary to ensure that the batadv_v_ogm_queue_on_if() checks that\nit is using the same mesh_iface for which batadv_v_ogm_send_meshif() was\ncalled."}], "id": "CVE-2026-52913", "lastModified": "2026-07-08T15:13:03.247", "metrics": {"cvssMetricV31": [{"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"}]}, "published": "2026-06-24T08:16:21.080", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/040fe8eb34624002071dd21de9824dfe668ce65d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1be1e99cbd5b74a69d3f92200ca87cf1bce852db"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/31dcb9711abd1dcd2080d9fac05c79dd9997d6bf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4ff461af943efb5e74d09942d5ffee7644d1e1fe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/70c9f6ab0d8f785087fb74fb85464a9a5288bfdb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aad70db50ea3d7dfe30e402b889ff075a293b287"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d7391a2b854a62235539c68e9cbf6fc7910a8e9a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f8ce8b8331a1bc44ad4905886a482214d428b253"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: batman-adv: v: stop OGMv2 on disabled interface", "id": "2492103", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492103"}, "csaw": false, "details": ["No description is available for this CVE."], "name": "CVE-2026-52913", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not 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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-52913\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-52913\nhttps://lore.kernel.org/linux-cve-announce/2026062428-CVE-2026-52913-0d7b@gregkh/T"]}

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