{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-26786", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.178Z", "datePublished": "2024-04-04T08:20:19.109Z", "dateUpdated": "2025-05-04T08:56:29.466Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:56:29.466Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd: Fix iopt_access_list_id overwrite bug\n\nSyzkaller reported the following WARN_ON:\n WARNING: CPU: 1 PID: 4738 at drivers/iommu/iommufd/io_pagetable.c:1360\n\n Call Trace:\n iommufd_access_change_ioas+0x2fe/0x4e0\n iommufd_access_destroy_object+0x50/0xb0\n iommufd_object_remove+0x2a3/0x490\n iommufd_object_destroy_user\n iommufd_access_destroy+0x71/0xb0\n iommufd_test_staccess_release+0x89/0xd0\n __fput+0x272/0xb50\n __fput_sync+0x4b/0x60\n __do_sys_close\n __se_sys_close\n __x64_sys_close+0x8b/0x110\n do_syscall_x64\n\nThe mismatch between the access pointer in the list and the passed-in\npointer is resulting from an overwrite of access->iopt_access_list_id, in\niopt_add_access(). 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Called from iommufd_access_change_ioas() when\nxa_alloc() succeeds but iopt_calculate_iova_alignment() fails.\n\nAdd a new_id in iopt_add_access() and only update iopt_access_list_id when\nreturning successfully."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.21", "versionStartIncluding": "6.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.7.9", "versionStartIncluding": "6.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.8", "versionStartIncluding": "6.6"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:56:29.466Z"}}}, "cveMetadata": {"cveId": "CVE-2024-26786", "state": "PUBLISHED", "dateUpdated": "2025-05-04T08:56:29.466Z", "dateReserved": "2024-02-19T14:20:24.178Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-04-04T08:20:19.109Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

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Called from iommufd_access_change_ioas() when\nxa_alloc() succeeds but iopt_calculate_iova_alignment() fails.\n\nAdd a new_id in iopt_add_access() and only update iopt_access_list_id when\nreturning successfully."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: iommufd: corrige el error de sobrescritura de iopt_access_list_id Syzkaller inform\u00f3 lo siguiente WARN_ON: ADVERTENCIA: CPU: 1 PID: 4738 en drivers/iommu/iommufd/io_pagetable.c:1360 Seguimiento de llamadas: iommufd_access_change_ioas+0x2fe /0x4e0 iommufd_access_destroy_object+0x50/0xb0 iommufd_object_remove+0x2a3/0x490 iommufd_object_destroy_user iommufd_access_destroy+0x71/0xb0 iommufd_test_staccess_release+0x89/0xd0 __fput+0x272/0x b50 __fput_sync+0x4b/0x60 __do_sys_close __se_sys_close __x64_sys_close+0x8b/0x110 do_syscall_x64 La falta de coincidencia entre el puntero de acceso en la lista y el puntero pasado resulta de una sobrescritura de acceso->iopt_access_list_id, en iopt_add_access(). Llamado desde iommufd_access_change_ioas() cuando xa_alloc() tiene \u00e9xito pero iopt_calculate_iova_alignment() falla. Agregue un new_id en iopt_add_access() y actualice solo iopt_access_list_id cuando regrese exitosamente."}], "id": "CVE-2024-26786", "lastModified": "2025-04-04T14:29:50.400", "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-04-04T09:15:08.247", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9526a46cc0c378d381560279bea9aa34c84298a0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aeb004c0cd6958e910123a1607634401009c9539"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f1fb745ee0a6fe43f1d84ec369c7e6af2310fda9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9526a46cc0c378d381560279bea9aa34c84298a0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aeb004c0cd6958e910123a1607634401009c9539"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f1fb745ee0a6fe43f1d84ec369c7e6af2310fda9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:9315", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}], "bugzilla": {"description": "kernel: iommufd: Fix iopt_access_list_id overwrite bug", "id": "2273459", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2273459"}, "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": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\niommufd: Fix iopt_access_list_id overwrite bug\nSyzkaller reported the following WARN_ON:\nWARNING: CPU: 1 PID: 4738 at drivers/iommu/iommufd/io_pagetable.c:1360\nCall Trace:\niommufd_access_change_ioas+0x2fe/0x4e0\niommufd_access_destroy_object+0x50/0xb0\niommufd_object_remove+0x2a3/0x490\niommufd_object_destroy_user\niommufd_access_destroy+0x71/0xb0\niommufd_test_staccess_release+0x89/0xd0\n__fput+0x272/0xb50\n__fput_sync+0x4b/0x60\n__do_sys_close\n__se_sys_close\n__x64_sys_close+0x8b/0x110\ndo_syscall_x64\nThe mismatch between the access pointer in the list and the passed-in\npointer is resulting from an overwrite of access->iopt_access_list_id, in\niopt_add_access(). Called from iommufd_access_change_ioas() when\nxa_alloc() succeeds but iopt_calculate_iova_alignment() fails.\nAdd a new_id in iopt_add_access() and only update iopt_access_list_id when\nreturning successfully."], "name": "CVE-2024-26786", "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": "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-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-04-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26786\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26786\nhttps://lore.kernel.org/linux-cve-announce/2024040459-CVE-2024-26786-802f@gregkh/T"], "threat_severity": "Low"}

{}