{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23205",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:45.986Z",
        "datePublished": "2026-02-14T16:27:28.409Z",
        "dateUpdated": "2026-05-23T16:04:10.175Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:04:10.175Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: fix memory leak in smb2_open_file()\n\nReproducer:\n\n  1. server: directories are exported read-only\n  2. client: mount -t cifs //${server_ip}/export /mnt\n  3. client: dd if=/dev/zero of=/mnt/file bs=512 count=1000 oflag=direct\n  4. client: umount /mnt\n  5. client: sleep 1\n  6. client: modprobe -r cifs\n\nThe error message is as follows:\n\n  =============================================================================\n  BUG cifs_small_rq (Not tainted): Objects remaining on __kmem_cache_shutdown()\n  -----------------------------------------------------------------------------\n\n  Object 0x00000000d47521be @offset=14336\n  ...\n  WARNING: mm/slub.c:1251 at __kmem_cache_shutdown+0x34e/0x440, CPU#0: modprobe/1577\n  ...\n  Call Trace:\n   <TASK>\n   kmem_cache_destroy+0x94/0x190\n   cifs_destroy_request_bufs+0x3e/0x50 [cifs]\n   cleanup_module+0x4e/0x540 [cifs]\n   __se_sys_delete_module+0x278/0x400\n   __x64_sys_delete_module+0x5f/0x70\n   x64_sys_call+0x2299/0x2ff0\n   do_syscall_64+0x89/0x350\n   entry_SYSCALL_64_after_hwframe+0x76/0x7e\n  ...\n  kmem_cache_destroy cifs_small_rq: Slab cache still has objects when called from cifs_destroy_request_bufs+0x3e/0x50 [cifs]\n  WARNING: mm/slab_common.c:532 at kmem_cache_destroy+0x16b/0x190, CPU#0: modprobe/1577"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/client/smb2file.c"
                    ],
                    "versions": [
                        {
                            "version": "17e53a15e64b65623b8f2b1185d27d7b1cbf69ab",
                            "lessThan": "743f70406264348c0830f38409eb6c40a42fb2db",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "18066188eb90cc0c798f3370a8078a79ddb73f70",
                            "lessThan": "3a6d6b332f92990958602c1e35ce0173e2dd62e9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6ebb9d54eccc8026b386e76eff69364d33373da5",
                            "lessThan": "b64e3b5d8d759dd4333992e4ba4dadf9359952c8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e255612b5ed9f179abe8196df7c2ba09dd227900",
                            "lessThan": "9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e255612b5ed9f179abe8196df7c2ba09dd227900",
                            "lessThan": "e3a43633023e3cacaca60d4b8972d084a2b06236",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bcd15f06c7e8904116cfb06526bcc189b86aff85",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.1.141",
                            "lessThan": "6.1.163",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.93",
                            "lessThan": "6.6.124",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.31",
                            "lessThan": "6.12.70",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.14.9",
                            "lessThan": "6.15",
                            "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/smb/client/smb2file.c"
                    ],
                    "versions": [
                        {
                            "version": "6.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.163",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.124",
                            "lessThanOrEqual": "6.6.*",
                            "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": "6.1.141",
                                    "versionEndExcluding": "6.1.163"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6.93",
                                    "versionEndExcluding": "6.6.124"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.31",
                                    "versionEndExcluding": "6.12.70"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15",
                                    "versionEndExcluding": "6.18.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15",
                                    "versionEndExcluding": "6.19"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.14.9"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/743f70406264348c0830f38409eb6c40a42fb2db"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3a6d6b332f92990958602c1e35ce0173e2dd62e9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b64e3b5d8d759dd4333992e4ba4dadf9359952c8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e3a43633023e3cacaca60d4b8972d084a2b06236"
                }
            ],
            "title": "smb/client: fix memory leak in smb2_open_file()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}