{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-26972",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "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."
            }
        ]
    },
    "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": "2c58d548f570",
                                            "version_value": "3faea7810e2b"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "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"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
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    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/3faea7810e2b3e9a9a92ef42d7e5feaeb8ff7133",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/3faea7810e2b3e9a9a92ef42d7e5feaeb8ff7133"
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            {
                "url": "https://git.kernel.org/stable/c/62b5ae00c2b835639002ce898ccb5d82c51073ae",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/62b5ae00c2b835639002ce898ccb5d82c51073ae"
            },
            {
                "url": "https://git.kernel.org/stable/c/6379b44cdcd67f5f5d986b73953e99700591edfa",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/6379b44cdcd67f5f5d986b73953e99700591edfa"
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