{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-54258",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-30T12:06:44.516Z",
        "datePublished": "2025-12-30T12:15:52.855Z",
        "dateUpdated": "2026-05-23T15:34:48.826Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T15:34:48.826Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: fix potential oops in cifs_oplock_break\n\nWith deferred close we can have closes that race with lease breaks,\nand so with the current checks for whether to send the lease response,\noplock_response(), this can mean that an unmount (kill_sb) can occur\njust before we were checking if the tcon->ses is valid.  See below:\n\n[Fri Aug  4 04:12:50 2023] RIP: 0010:cifs_oplock_break+0x1f7/0x5b0 [cifs]\n[Fri Aug  4 04:12:50 2023] Code: 7d a8 48 8b 7d c0 c0 e9 02 48 89 45 b8 41 89 cf e8 3e f5 ff ff 4c 89 f7 41 83 e7 01 e8 82 b3 03 f2 49 8b 45 50 48 85 c0 74 5e <48> 83 78 60 00 74 57 45 84 ff 75 52 48 8b 43 98 48 83 eb 68 48 39\n[Fri Aug  4 04:12:50 2023] RSP: 0018:ffffb30607ddbdf8 EFLAGS: 00010206\n[Fri Aug  4 04:12:50 2023] RAX: 632d223d32612022 RBX: ffff97136944b1e0 RCX: 0000000080100009\n[Fri Aug  4 04:12:50 2023] RDX: 0000000000000001 RSI: 0000000080100009 RDI: ffff97136944b188\n[Fri Aug  4 04:12:50 2023] RBP: ffffb30607ddbe58 R08: 0000000000000001 R09: ffffffffc08e0900\n[Fri Aug  4 04:12:50 2023] R10: 0000000000000001 R11: 000000000000000f R12: ffff97136944b138\n[Fri Aug  4 04:12:50 2023] R13: ffff97149147c000 R14: ffff97136944b188 R15: 0000000000000000\n[Fri Aug  4 04:12:50 2023] FS:  0000000000000000(0000) GS:ffff9714f7c00000(0000) knlGS:0000000000000000\n[Fri Aug  4 04:12:50 2023] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[Fri Aug  4 04:12:50 2023] CR2: 00007fd8de9c7590 CR3: 000000011228e000 CR4: 0000000000350ef0\n[Fri Aug  4 04:12:50 2023] Call Trace:\n[Fri Aug  4 04:12:50 2023]  <TASK>\n[Fri Aug  4 04:12:50 2023]  process_one_work+0x225/0x3d0\n[Fri Aug  4 04:12:50 2023]  worker_thread+0x4d/0x3e0\n[Fri Aug  4 04:12:50 2023]  ? process_one_work+0x3d0/0x3d0\n[Fri Aug  4 04:12:50 2023]  kthread+0x12a/0x150\n[Fri Aug  4 04:12:50 2023]  ? set_kthread_struct+0x50/0x50\n[Fri Aug  4 04:12:50 2023]  ret_from_fork+0x22/0x30\n[Fri Aug  4 04:12:50 2023]  </TASK>\n\nTo fix this change the ordering of the checks before sending the oplock_response\nto first check if the openFileList is empty."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/client/file.c"
                    ],
                    "versions": [
                        {
                            "version": "63fb45ddc491895c4b36664e0c2c3b548545ae93",
                            "lessThan": "b99f490ea87ebcca3a429fd8837067feb56a4c7c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1bf709b9625001eefdd41048c5f4c7544ee33394",
                            "lessThan": "5ee28bcfbaacf289eb25c662a2862542ea6ce6a7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3b4c15171c3ce9120c81f5564b9367d8d0f4219c",
                            "lessThan": "6b67a6d2e50634fe127e656147c81915955e9f5e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da787d5b74983f7525d1eb4b9c0b4aff2821511a",
                            "lessThan": "e8f5f849ffce24490eb9449e98312b66c0dba76f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cff7fb969edaeff2bc80c8a8f7cf7b0c8df32da7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.3.13",
                            "lessThan": "6.4",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/client/file.c"
                    ],
                    "versions": [
                        {
                            "version": "5.15.121",
                            "lessThan": "5.15.128",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.39",
                            "lessThan": "6.1.47",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.4.4",
                            "lessThan": "6.4.12",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15.121",
                                    "versionEndExcluding": "5.15.128"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.1.39",
                                    "versionEndExcluding": "6.1.47"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4.4",
                                    "versionEndExcluding": "6.4.12"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3.13"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b99f490ea87ebcca3a429fd8837067feb56a4c7c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5ee28bcfbaacf289eb25c662a2862542ea6ce6a7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6b67a6d2e50634fe127e656147c81915955e9f5e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e8f5f849ffce24490eb9449e98312b66c0dba76f"
                }
            ],
            "title": "cifs: fix potential oops in cifs_oplock_break",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}