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CVE-2026-53198 ksmbd: fix use-after-free of a deferred file_lock on double SMB2_CANCEL

🗓️ 25 Jun 2026 08:39:07Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 32 Views

ksmbd fixes use-after-free of a deferred file_lock when a second SMB2_CANCEL arrives.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
CVE-2026-53198
25 Jun 202608:39
attackerkb
cbl_mariner
CVE-2026-53198 affecting package kernel for versions less than 6.6.143.1-1
8 Jul 202616:02
cbl_mariner
cgr
CVE-2026-53198 vulnerabilities
8 Jul 202602:17
cgr
circl
CVE-2026-53198
6 Jul 202606:50
circl
cve
CVE-2026-53198
25 Jun 202608:39
cve
debian
[SECURITY] [DLA 4665-1] linux security update
3 Jul 202618:38
debian
debian
[SECURITY] [DLA 4671-1] linux-6.1 security update
5 Jul 202618:24
debian
debiancve
CVE-2026-53198
25 Jun 202608:39
debiancve
nessus
Debian dla-4665 : affs-modules-6.1.0-48-4kc-malta-di - security update
3 Jul 202600:00
nessus
nessus
Debian dla-4671 : linux-config-6.1 - security update
6 Jul 202600:00
nessus
Rows per page
[
  {
    "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"
      }
    ]
  },
  {
    "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"
      }
    ]
  }
]

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29 Jun 2026 04:18Current
CVSS 3.18.8
EPSS0.00466
32