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{"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"]}