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Because the ringbuf area is created by mapping\nallocated pages, so use VM_MAP instead.\n\nAfter the change, info in /proc/vmallocinfo also changes from\n [start]-[end] 24576 ringbuf_map_alloc+0x171/0x290 vmalloc user\nto\n [start]-[end] 24576 ringbuf_map_alloc+0x171/0x290 vmap user"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.99", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.22", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.16.8", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.17", "versionStartIncluding": "5.8"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:21:35.616Z"}}}, "cveMetadata": {"cveId": "CVE-2022-48714", "state": "PUBLISHED", "dateUpdated": "2025-05-04T08:21:35.616Z", "dateReserved": "2024-06-20T11:09:39.050Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-06-20T11:13:08.007Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Use VM_MAP instead of VM_ALLOC for ringbuf\n\nAfter commit 2fd3fb0be1d1 (\"kasan, vmalloc: unpoison VM_ALLOC pages\nafter mapping\"), non-VM_ALLOC mappings will be marked as accessible\nin __get_vm_area_node() when KASAN is enabled. But now the flag for\nringbuf area is VM_ALLOC, so KASAN will complain out-of-bound access\nafter vmap() returns. Because the ringbuf area is created by mapping\nallocated pages, so use VM_MAP instead.\n\nAfter the change, info in /proc/vmallocinfo also changes from\n [start]-[end] 24576 ringbuf_map_alloc+0x171/0x290 vmalloc user\nto\n [start]-[end] 24576 ringbuf_map_alloc+0x171/0x290 vmap user"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bpf: use VM_MAP en lugar de VM_ALLOC para ringbuf Despu\u00e9s del commit 2fd3fb0be1d1 (\"kasan, vmalloc: despoisone las p\u00e1ginas VM_ALLOC despu\u00e9s del mapeo\"), los mapeos que no sean VM_ALLOC se marcar\u00e1n como accesibles en __get_vm_area_node( ) cuando KASAN est\u00e1 habilitado. Pero ahora el indicador para el \u00e1rea ringbuf es VM_ALLOC, por lo que KASAN se quejar\u00e1 del acceso fuera de los l\u00edmites despu\u00e9s de que regrese vmap(). Debido a que el \u00e1rea ringbuf se crea asignando p\u00e1ginas asignadas, use VM_MAP en su lugar. Despu\u00e9s del cambio, la informaci\u00f3n en /proc/vmallocinfo tambi\u00e9n cambia de [inicio]-[fin] 24576 ringbuf_map_alloc+0x171/0x290 usuario vmalloc a [inicio]-[fin] 24576 ringbuf_map_alloc+0x171/0x290 usuario vmap"}], "id": "CVE-2022-48714", "lastModified": "2024-11-21T07:33:50.707", "metrics": {}, "published": "2024-06-20T11:15:55.033", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5e457aeab52a5947619e1f18047f4d2f3212b3eb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6304a613a97d6dcd49b93fbad31e9f39d1e138d6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b293dcc473d22a62dc6d78de2b15e4f49515db56"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d578933f6226d5419af9306746efa1c693cbaf9c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/5e457aeab52a5947619e1f18047f4d2f3212b3eb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/6304a613a97d6dcd49b93fbad31e9f39d1e138d6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/b293dcc473d22a62dc6d78de2b15e4f49515db56"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/d578933f6226d5419af9306746efa1c693cbaf9c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: bpf: Use VM_MAP instead of VM_ALLOC for ringbuf", "id": "2293288", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293288"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbpf: Use VM_MAP instead of VM_ALLOC for ringbuf\nAfter commit 2fd3fb0be1d1 (\"kasan, vmalloc: unpoison VM_ALLOC pages\nafter mapping\"), non-VM_ALLOC mappings will be marked as accessible\nin __get_vm_area_node() when KASAN is enabled. But now the flag for\nringbuf area is VM_ALLOC, so KASAN will complain out-of-bound access\nafter vmap() returns. Because the ringbuf area is created by mapping\nallocated pages, so use VM_MAP instead.\nAfter the change, info in /proc/vmallocinfo also changes from\n[start]-[end] 24576 ringbuf_map_alloc+0x171/0x290 vmalloc user\nto\n[start]-[end] 24576 ringbuf_map_alloc+0x171/0x290 vmap user"], "name": "CVE-2022-48714", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "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": "2024-06-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48714\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48714\nhttps://lore.kernel.org/linux-cve-announce/2024062054-CVE-2022-48714-726f@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-07-12T23:05:42.471141+00:00", "updated": "2025-07-12T23:05:42.471194+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}