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CVE-2026-97561: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: smb: client: honor forceuid/forcegid when mapping SIDs to uid/gid When the administrator mounts with forceuid or forcegid (uid=/gid= mount options), they expect all files to appear owned by the specified user/group. However, several code paths unconditionally called sid_to_id() to overwrite cf_uid/cf_gid with server-provided values, ignoring the administrator's explicit override: - smb311_posix_info_to_fattr() (stat via POSIX extensions) - cifs_posix_to_fattr() (readdir via POSIX extensions) - parse_sec_desc() (CIFS ACL ownership mapping) This allowed an untrusted server to dictate local file ownership even when the mount was configured to force specific uid/gid values. Fix all three call sites to check CIFS_MOUNT_OVERR_UID and CIFS_MOUNT_OVERR_GID before calling sid_to_id(), following the same pattern already used by cifs_unix_basic_to_fattr() for unix extensions.

    Засегнати продукти

    • Linux Linux: 9409ae58e0759d010b347e7b19ebc90ab5d4b98f преди 89a3b4704af2208e381c55037ff2d1e2365b83e4; 9409ae58e0759d010b347e7b19ebc90ab5d4b98f преди be6eccccec867c22d7c65fab4ea4e91ec3d5b8c6; 9409ae58e0759d010b347e7b19ebc90ab5d4b98f преди bc35de451c128d399ad185d6269f8847e97cd1c9; 9409ae58e0759d010b347e7b19ebc90ab5d4b98f преди 6ac7a29691558bed18e2df1780636b8aa0fd13d5; 9409ae58e0759d010b347e7b19ebc90ab5d4b98f преди e1b74f8f8c1d13190b09fe623b729d36b7ac22a8; 9409ae58e0759d010b347e7b19ebc90ab5d4b98f преди 18a72975e9f35aadecc75b031f693f2d1f49308f
    • Linux Linux: 3.0; преди 3.0; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.57 до 6.18.*; 7.2.7 до 7.2.*; от 7.3 нататък

    История

    • 25 септември 2026 Публикувано

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