{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2021-47250",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipv4: fix memory leak in netlbl_cipsov4_add_std\n\nReported by syzkaller:\nBUG: memory leak\nunreferenced object 0xffff888105df7000 (size 64):\ncomm \"syz-executor842\", pid 360, jiffies 4294824824 (age 22.546s)\nhex dump (first 32 bytes):\n00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\nbacktrace:\n[<00000000e67ed558>] kmalloc include/linux/slab.h:590 [inline]\n[<00000000e67ed558>] kzalloc include/linux/slab.h:720 [inline]\n[<00000000e67ed558>] netlbl_cipsov4_add_std net/netlabel/netlabel_cipso_v4.c:145 [inline]\n[<00000000e67ed558>] netlbl_cipsov4_add+0x390/0x2340 net/netlabel/netlabel_cipso_v4.c:416\n[<0000000006040154>] genl_family_rcv_msg_doit.isra.0+0x20e/0x320 net/netlink/genetlink.c:739\n[<00000000204d7a1c>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]\n[<00000000204d7a1c>] genl_rcv_msg+0x2bf/0x4f0 net/netlink/genetlink.c:800\n[<00000000c0d6a995>] netlink_rcv_skb+0x134/0x3d0 net/netlink/af_netlink.c:2504\n[<00000000d78b9d2c>] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811\n[<000000009733081b>] netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]\n[<000000009733081b>] netlink_unicast+0x4a0/0x6a0 net/netlink/af_netlink.c:1340\n[<00000000d5fd43b8>] netlink_sendmsg+0x789/0xc70 net/netlink/af_netlink.c:1929\n[<000000000a2d1e40>] sock_sendmsg_nosec net/socket.c:654 [inline]\n[<000000000a2d1e40>] sock_sendmsg+0x139/0x170 net/socket.c:674\n[<00000000321d1969>] ____sys_sendmsg+0x658/0x7d0 net/socket.c:2350\n[<00000000964e16bc>] ___sys_sendmsg+0xf8/0x170 net/socket.c:2404\n[<000000001615e288>] __sys_sendmsg+0xd3/0x190 net/socket.c:2433\n[<000000004ee8b6a5>] do_syscall_64+0x37/0x90 arch/x86/entry/common.c:47\n[<00000000171c7cee>] entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nThe memory of doi_def->map.std pointing is allocated in\nnetlbl_cipsov4_add_std, but no place has freed it. It should be\nfreed in cipso_v4_doi_free which frees the cipso DOI resource."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "96cb8e3313c7",
                                            "version_value": "212166510582"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "2.6.19",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "2.6.19",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "4.4.274",
                                                        "lessThanOrEqual": "4.4.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "4.9.274",
                                                        "lessThanOrEqual": "4.9.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "4.14.238",
                                                        "lessThanOrEqual": "4.14.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "4.19.196",
                                                        "lessThanOrEqual": "4.19.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.4.128",
                                                        "lessThanOrEqual": "5.4.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.10.46",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.12.13",
                                                        "lessThanOrEqual": "5.12.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.13",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/212166510582631994be4f4b3fe15e10a03c1dd4",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/212166510582631994be4f4b3fe15e10a03c1dd4"
            },
            {
                "url": "https://git.kernel.org/stable/c/086e92b1d68c6338535f715aad173f8cf4bfbc8c",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/086e92b1d68c6338535f715aad173f8cf4bfbc8c"
            },
            {
                "url": "https://git.kernel.org/stable/c/6dcea66d3bb519b426282588f38e884e07893c1f",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/6dcea66d3bb519b426282588f38e884e07893c1f"
            },
            {
                "url": "https://git.kernel.org/stable/c/5340858147e3dc60913fb3dd0cbb758ec4a26e66",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/5340858147e3dc60913fb3dd0cbb758ec4a26e66"
            },
            {
                "url": "https://git.kernel.org/stable/c/398a24447eb60f060c8994221cb5ae6caf355fa1",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/398a24447eb60f060c8994221cb5ae6caf355fa1"
            },
            {
                "url": "https://git.kernel.org/stable/c/deeeb65c6ee404f2d1fb80b38b2730645c0f4663",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/deeeb65c6ee404f2d1fb80b38b2730645c0f4663"
            },
            {
                "url": "https://git.kernel.org/stable/c/0ffb460be3abac86f884a8c548bb02724ec370f4",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/0ffb460be3abac86f884a8c548bb02724ec370f4"
            },
            {
                "url": "https://git.kernel.org/stable/c/d612c3f3fae221e7ea736d196581c2217304bbbc",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/d612c3f3fae221e7ea736d196581c2217304bbbc"
            }
        ]
    },
    "generator": {
        "engine": "bippy-a5840b7849dd"
    }
}