CVE-2026-53198Published

ksmbd: fix use-after-free of a deferred file_lock on double SMB2_CANCEL

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-53198

Published

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/server/smb2pdu.c"
                    ],
                    "versions": [
                        {
                            "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
                            "lessThan": "b7063c7426ea5a4d15e01b60538718765392f49d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
                            "lessThan": "0da2e073f9cbf4985a0fd9acb71bc5ff599f8afd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
                            "lessThan": "89ae9df09d2c1fb4a4eb495c113a7ce1dca34147",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
                            "lessThan": "14d2eee0193ac3cd1bf3d014373449f0b8d35d6d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
                            "lessThan": "2b2eda2821cff1d1b5a423b6ee7d8fc6fbc8e694",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9",
                            "lessThan": "f580d27e8928828693df44ba2db0fffdbe11dfea",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/server/smb2pdu.c"
                    ],
                    "versions": [
                        {
                            "version": "5.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.176",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.143",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.94",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.36",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.13",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON