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CVE-2026-53390 ksmbd: fix out-of-bounds read in smb_check_perm_dacl()

🗓️ 19 Jul 2026 12:01:54Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

ksmbd fixes out-of-bounds read in smb_check_perm_dacl by validating ace size against sub-auth count.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-53390
19 Jul 202612:01
attackerkb
CVE
CVE-2026-53390
19 Jul 202612:01
cve
EUVD
EUVD-2026-45512
19 Jul 202612:01
euvd
NVD
CVE-2026-53390
19 Jul 202612:16
nvd
OSV
CVE-2026-53390 ksmbd: fix out-of-bounds read in smb_check_perm_dacl()
19 Jul 202612:01
osv
OSV
DEBIAN-CVE-2026-53390
19 Jul 202612:16
osv
OSV
UBUNTU-CVE-2026-53390
20 Jul 202600:00
osv
Positive Technologies
PT-2026-61095
19 Jul 202600:00
ptsecurity
SUSE CVE
SUSE CVE-2026-53390
19 Jul 202617:36
susecve
[
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    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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      "fs/smb/server/smbacl.c"
    ],
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  },
  {
    "product": "Linux",
    "vendor": "Linux",
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    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/server/smbacl.c"
    ],
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      },
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      {
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      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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