{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-26972",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-02-19T14:20:24.202Z",
        "datePublished": "2024-05-01T05:20:04.669Z",
        "dateUpdated": "2024-10-10T11:29:39.881Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-10-10T11:29:39.881Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nubifs: ubifs_symlink: Fix memleak of inode->i_link in error path\n\nFor error handling path in ubifs_symlink(), inode will be marked as\nbad first, then iput() is invoked. If inode->i_link is initialized by\nfscrypt_encrypt_symlink() in encryption scenario, inode->i_link won't\nbe freed by callchain ubifs_free_inode -> fscrypt_free_inode in error\nhandling path, because make_bad_inode() has changed 'inode->i_mode' as\n'S_IFREG'.\nFollowing kmemleak is easy to be reproduced by injecting error in\nubifs_jnl_update() when doing symlink in encryption scenario:\n unreferenced object 0xffff888103da3d98 (size 8):\n  comm \"ln\", pid 1692, jiffies 4294914701 (age 12.045s)\n  backtrace:\n   kmemdup+0x32/0x70\n   __fscrypt_encrypt_symlink+0xed/0x1c0\n   ubifs_symlink+0x210/0x300 [ubifs]\n   vfs_symlink+0x216/0x360\n   do_symlinkat+0x11a/0x190\n   do_syscall_64+0x3b/0xe0\nThere are two ways fixing it:\n 1. Remove make_bad_inode() in error handling path. We can do that\n    because ubifs_evict_inode() will do same processes for good\n    symlink inode and bad symlink inode, for inode->i_nlink checking\n    is before is_bad_inode().\n 2. Free inode->i_link before marking inode bad.\nMethod 2 is picked, it has less influence, personally, I think."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ubifs/dir.c"
                    ],
                    "versions": [
                        {
                            "version": "2c58d548f570",
                            "lessThan": "3faea7810e2b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2c58d548f570",
                            "lessThan": "62b5ae00c2b8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2c58d548f570",
                            "lessThan": "6379b44cdcd6",
                            "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/ubifs/dir.c"
                    ],
                    "versions": [
                        {
                            "version": "5.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.2",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.6.55",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.8.3",
                            "lessThanOrEqual": "6.8.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.9",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3faea7810e2b3e9a9a92ef42d7e5feaeb8ff7133"
                },
                {
                    "url": "https://git.kernel.org/stable/c/62b5ae00c2b835639002ce898ccb5d82c51073ae"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6379b44cdcd67f5f5d986b73953e99700591edfa"
                }
            ],
            "title": "ubifs: ubifs_symlink: Fix memleak of inode->i_link in error path",
            "x_generator": {
                "engine": "bippy-c9c4e1df01b2"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-06-14T20:05:43.085010Z",
                                "id": "CVE-2024-26972",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-06-14T20:05:50.540Z"
                }
            },
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T00:21:05.922Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://git.kernel.org/stable/c/62b5ae00c2b835639002ce898ccb5d82c51073ae",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/6379b44cdcd67f5f5d986b73953e99700591edfa",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            }
        ]
    }
}