ksmbd smb

  1. CVE-2026-52944: ksmbd SMB Auth Bypass Alters Sparse File Flags—Mixed Estate Checklist

    Microsoft’s CVE-2026-52944 disclosure covers a Linux kernel ksmbd flaw, published in late June 2026, where authenticated SMB clients could use FSCTL_SET_SPARSE to change sparse-file attributes without the share-level and file-handle permission checks that should have blocked them. The bug is not...
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    • cve-2026-52944 ksmbd smb linux kernel security smb permission checks
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