Lucene search
+L

CVE-2026-72422 ksmbd: fix use-after-free of conn->preauth_info in concurrent SMB2 NEGOTIATE

🗓️ 15 Aug 2026 05:56:41Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 46 Views

ksmbd use-after-free of conn->preauth_info during concurrent SMB2 NEGOTIATE requests in Linux kernel.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
astralinux
AstraLinux
Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15
15 Oct 202615:53
–astralinux
bdu_fstec
BDU FSTEC
Linux SMB Preauth Hash RCE
20 Oct 202600:00
–bdu_fstec
circl
Circl
CVE-2026-72422
17 Aug 202612:40
–circl
cve
CVE
CVE-2026-72422
15 Aug 202605:56
–cve
debiancve
Debian CVE
CVE-2026-72422
15 Aug 202605:56
–debiancve
euvd
EUVD
EUVD-2026-59321
15 Aug 202605:56
–euvd
nvd
NVD
CVE-2026-72422
15 Aug 202606:22
–nvd
osv_bell
osv_bell
BELL-CVE-2026-72422
18 Aug 202606:06
–osv_bell
osv_cve
osv_cve
CVE-2026-72422 ksmbd: fix use-after-free of conn->preauth_info in concurrent SMB2 NEGOTIATE
15 Aug 202605:56
–osv_cve
osv_debian
osv_debian
DEBIAN-CVE-2026-72422
15 Aug 202606:22
–osv_debian
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": "dd4e4c811898410e6a3ae3b63207b7c542860907",
        "lessThan": "c7bef84740d1d57848c74f6f5b996606e43ea4fe",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "aa7253c2393f6dcd6a1468b0792f6da76edad917",
        "lessThan": "d0a469122e7bf8338fec1949fb1e8e1290ed8caa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "aa7253c2393f6dcd6a1468b0792f6da76edad917",
        "lessThan": "7470511d085af1c7a043a60e53d52b512d5a10b1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "aa7253c2393f6dcd6a1468b0792f6da76edad917",
        "lessThan": "16a1ecf39c217e3d164bd32ef2a4f650abc067fa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "aa7253c2393f6dcd6a1468b0792f6da76edad917",
        "lessThan": "77bb0bbfcc4e777ca653174689e5e363f8ee63d1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "aa7253c2393f6dcd6a1468b0792f6da76edad917",
        "lessThan": "1c89da3baa2b1f269178afa87dc30479b8535776",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "aa7253c2393f6dcd6a1468b0792f6da76edad917",
        "lessThan": "0c054227479ed7e36ebccb3a558bc0ef698264f6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8a8315a5960bd2b5ffc75f44fc089e57c3b17c44",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ff20f1875889dbe4a67c9298e609d7c88cf6456d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.15.61",
        "lessThan": "5.15.212",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.18.18",
        "lessThan": "5.19",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.19.2",
        "lessThan": "5.20",
        "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/server/smb2pdu.c"
    ],
    "versions": [
      {
        "version": "6.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.212",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.97",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

17 Aug 2026 05:44Current
CVSS 3.19.8
EPSS0.00717
46