smb: server: let send_done handle a completion without IB_SEND_SIGNALED_CVE-2026-31536

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: server: let send_done handle a completion without IB_SEND_SIGNALED\n\nWith smbdirect_send_batch processing we likely have requests without\nIB_SEND_SIGNALED, which will be destroyed in the final request\nthat has IB_SEND_SIGNALED set.\n\nIf the connection is broken all requests are signaled\neven without explicit IB_SEND_SIGNALED.",
    "published": "2026-04-24T14:30:24.224Z",
    "modified": "2026-04-27T14:03:55.903Z",
    "type": "cve",
    "title": "smb: server: let send_done handle a completion without IB_SEND_SIGNALED",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/24082642654f3e5149913946e89c00a297a8868f\nhttps://git.kernel.org/stable/c/e38b415c024bc3b6321bf8650dbf3f4aab8e74b3\nhttps://git.kernel.org/stable/c/9da82dc73cb03e85d716a2609364572367a5ff47",
    "id": "CVE-2026-31536",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf\nLinux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf\nLinux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf\nLinux Linux 5.15",
    "sourceHref": "",
    "cvss": {
        "score": 9.8,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
    "vendor": "Linux",
    "ai_description": "A vulnerability in the Linux kernel's SMB server allows for potential data corruption and disruption of service due to incorrect handling of send requests without IB_SEND_SIGNALED set.",
    "ai_severity": "Critical",
    "ai_vendor": "Linux Foundation",
    "ai_product": "Linux Kernel",
    "ai_version": "5.15, 0626e6641f6b467447c81dd7678a69c66f7746cf",
    "ai_score": 9.8
}