{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2021-46956",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-02-27T18:42:55.937Z",
        "datePublished": "2024-02-27T18:46:58.101Z",
        "dateUpdated": "2024-08-04T05:17:42.907Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-05-29T04:59:30.459Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtiofs: fix memory leak in virtio_fs_probe()\n\nWhen accidentally passing twice the same tag to qemu, kmemleak ended up\nreporting a memory leak in virtiofs.  Also, looking at the log I saw the\nfollowing error (that's when I realised the duplicated tag):\n\n  virtiofs: probe of virtio5 failed with error -17\n\nHere's the kmemleak log for reference:\n\nunreferenced object 0xffff888103d47800 (size 1024):\n  comm \"systemd-udevd\", pid 118, jiffies 4294893780 (age 18.340s)\n  hex dump (first 32 bytes):\n    00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........\n    ff ff ff ff ff ff ff ff 80 90 02 a0 ff ff ff ff  ................\n  backtrace:\n    [<000000000ebb87c1>] virtio_fs_probe+0x171/0x7ae [virtiofs]\n    [<00000000f8aca419>] virtio_dev_probe+0x15f/0x210\n    [<000000004d6baf3c>] really_probe+0xea/0x430\n    [<00000000a6ceeac8>] device_driver_attach+0xa8/0xb0\n    [<00000000196f47a7>] __driver_attach+0x98/0x140\n    [<000000000b20601d>] bus_for_each_dev+0x7b/0xc0\n    [<00000000399c7b7f>] bus_add_driver+0x11b/0x1f0\n    [<0000000032b09ba7>] driver_register+0x8f/0xe0\n    [<00000000cdd55998>] 0xffffffffa002c013\n    [<000000000ea196a2>] do_one_initcall+0x64/0x2e0\n    [<0000000008f727ce>] do_init_module+0x5c/0x260\n    [<000000003cdedab6>] __do_sys_finit_module+0xb5/0x120\n    [<00000000ad2f48c6>] do_syscall_64+0x33/0x40\n    [<00000000809526b5>] entry_SYSCALL_64_after_hwframe+0x44/0xae"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/fuse/virtio_fs.c"
                    ],
                    "versions": [
                        {
                            "version": "a62a8ef9d97d",
                            "lessThan": "310efc95c72c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a62a8ef9d97d",
                            "lessThan": "d19555ff225d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a62a8ef9d97d",
                            "lessThan": "9b9d60c0eb8a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a62a8ef9d97d",
                            "lessThan": "5116e79fc6e6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a62a8ef9d97d",
                            "lessThan": "c79c5e017892",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/fuse/virtio_fs.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.4",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.4.118",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.10.36",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.11.20",
                            "lessThanOrEqual": "5.11.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.12.3",
                            "lessThanOrEqual": "5.12.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.13",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/310efc95c72c13faf855c692d19cd4d054d827c8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d19555ff225d0896a33246a49279e6d578095f15"
                },
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                    "url": "https://git.kernel.org/stable/c/9b9d60c0eb8ada99cce2a9ab5c15dffc523b01ae"
                },
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                    "url": "https://git.kernel.org/stable/c/5116e79fc6e6725b8acdad8b7e928a83ab7b47e6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c79c5e0178922a9e092ec8fed026750f39dcaef4"
                }
            ],
            "title": "virtiofs: fix memory leak in virtio_fs_probe()",
            "x_generator": {
                "engine": "bippy-a5840b7849dd"
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                            "content": {
                                "id": "CVE-2021-46956",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
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                                        "Automatable": "no"
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                                    {
                                        "Technical Impact": "partial"
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                                "version": "2.0.3",
                                "timestamp": "2024-02-27T19:29:39.801497Z"
                            }
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                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T05:17:42.907Z"
                },
                "title": "CVE Program Container",
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