{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23201",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:45.986Z",
        "datePublished": "2026-02-14T16:27:25.693Z",
        "dateUpdated": "2026-05-23T16:04:07.069Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:04:07.069Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix oops due to invalid pointer for kfree() in parse_longname()\n\nThis fixes a kernel oops when reading ceph snapshot directories (.snap),\nfor example by simply running `ls /mnt/my_ceph/.snap`.\n\nThe variable str is guarded by __free(kfree), but advanced by one for\nskipping the initial '_' in snapshot names. Thus, kfree() is called\nwith an invalid pointer.  This patch removes the need for advancing the\npointer so kfree() is called with correct memory pointer.\n\nSteps to reproduce:\n\n1. Create snapshots on a cephfs volume (I've 63 snaps in my testcase)\n\n2. Add cephfs mount to fstab\n$ echo \"samba-fileserver@.files=/volumes/datapool/stuff/3461082b-ecc9-4e82-8549-3fd2590d3fb6      /mnt/test/stuff   ceph     acl,noatime,_netdev    0       0\" >> /etc/fstab\n\n3. Reboot the system\n$ systemctl reboot\n\n4. Check if it's really mounted\n$ mount | grep stuff\n\n5. List snapshots (expected 63 snapshots on my system)\n$ ls /mnt/test/stuff/.snap\n\nNow ls hangs forever and the kernel log shows the oops."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ceph/crypto.c"
                    ],
                    "versions": [
                        {
                            "version": "bb80f7618832d26f7e395f52f82b1dac76223e5f",
                            "lessThan": "8c9af7339de419819cfc641d551675d38ff99abf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "101841c38346f4ca41dc1802c867da990ffb32eb",
                            "lessThan": "e258ed369c9e04caa7d2fd49785d753ae4034cb6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "101841c38346f4ca41dc1802c867da990ffb32eb",
                            "lessThan": "bc8dedae022ce3058659c3addef3ec4b41d15e00",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3145b2b11492d61c512bbc59660bb823bc757f48",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "493479af8af3ab907f49e99323777d498a4fbd2b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.12.42",
                            "lessThan": "6.12.70",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.10",
                            "lessThan": "6.16",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.1",
                            "lessThan": "6.17",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ceph/crypto.c"
                    ],
                    "versions": [
                        {
                            "version": "6.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.70",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.10",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.42",
                                    "versionEndExcluding": "6.12.70"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.17",
                                    "versionEndExcluding": "6.18.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.17",
                                    "versionEndExcluding": "6.19"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.16.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8c9af7339de419819cfc641d551675d38ff99abf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e258ed369c9e04caa7d2fd49785d753ae4034cb6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bc8dedae022ce3058659c3addef3ec4b41d15e00"
                }
            ],
            "title": "ceph: fix oops due to invalid pointer for kfree() in parse_longname()",
            "x_generator": {
                "engine": "bippy-1.2.0"
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}