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{"descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhv_netvsc: Don't free decrypted memory\n\nIn CoCo VMs it is possible for the untrusted host to cause\nset_memory_encrypted() or set_memory_decrypted() to fail such that an\nerror is returned and the resulting memory is shared. Callers need to\ntake care to handle these errors to avoid returning decrypted (shared)\nmemory to the page allocator, which could lead to functional or security\nissues.\n\nThe netvsc driver could free decrypted/shared pages if\nset_memory_decrypted() fails. Check the decrypted field in the gpadl\nto decide whether to free the memory."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: hv_netvsc: no liberar memoria descifrada. En las m\u00e1quinas virtuales CoCo, es posible que el host que no es de confianza provoque que set_memory_encrypted() o set_memory_decrypted() falle, de modo que se devuelva un error y el resultado La memoria es compartida. Las personas que llaman deben tener cuidado al manejar estos errores para evitar devolver memoria descifrada (compartida) al asignador de p\u00e1ginas, lo que podr\u00eda provocar problemas funcionales o de seguridad. El controlador netvsc podr\u00eda liberar p\u00e1ginas descifradas/compartidas si falla set_memory_decrypted(). Verifique el campo descifrado en gpadl para decidir si desea liberar la memoria."}], "id": "CVE-2024-36911", "lastModified": "2024-11-21T09:22:47.903", "metrics": {}, "published": "2024-05-30T16:15:14.530", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4aaed9dbe8acd2b6114458f0498a617283d6275b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a56fe611326332bf6b7126e5559590c57dcebad4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bbf9ac34677b57506a13682b31a2a718934c0e31"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/4aaed9dbe8acd2b6114458f0498a617283d6275b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/a56fe611326332bf6b7126e5559590c57dcebad4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/bbf9ac34677b57506a13682b31a2a718934c0e31"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: hv_netvsc: Don't free decrypted memory", "id": "2284531", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2284531"}, "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:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-402", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nhv_netvsc: Don't free decrypted memory\nIn CoCo VMs it is possible for the untrusted host to cause\nset_memory_encrypted() or set_memory_decrypted() to fail such that an\nerror is returned and the resulting memory is shared. Callers need to\ntake care to handle these errors to avoid returning decrypted (shared)\nmemory to the page allocator, which could lead to functional or security\nissues.\nThe netvsc driver could free decrypted/shared pages if\nset_memory_decrypted() fails. Check the decrypted field in the gpadl\nto decide whether to free the memory."], "name": "CVE-2024-36911", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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": "Fix deferred", "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": "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": "2024-05-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-36911\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-36911\nhttps://lore.kernel.org/linux-cve-announce/2024053037-CVE-2024-36911-5ef6@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-07-12T22:09:24.651667+00:00", "updated": "2025-07-12T22:09:24.651715+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}