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CVE-2026-97415: Linux

7.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate names in ROOT_REF and ROOT_BACKREF ROOT_REF and ROOT_BACKREF items contain a struct btrfs_root_ref followed by the subvolume name. Several readers assume that this layout is already valid and then use the on-disk name length directly. A corrupted item can therefore make those readers address bytes outside the item, and BTRFS_IOC_GET_SUBVOL_INFO can copy too many bytes into its fixed-size UAPI name buffer. Validate ROOT_REF and ROOT_BACKREF items in tree-checker before any reader uses them. Reject records that do not contain a non-empty name, whose name_len does not exactly describe the remaining item payload, or whose name exceeds BTRFS_NAME_LEN. For BTRFS_IOC_GET_SUBVOL_INFO, copy only the validated on-disk name_len instead of deriving the copy length from the item size. The ioctl result is zeroed when allocated. That leaves the existing trailing zero byte untouched.

    Засегнати продукти

    • Linux Linux: b64ec075bded2b30bcd90af5aa5256d2237c885d преди 1370badf6b823ce3cde39a65f46f9e5dc7b4bf43; b64ec075bded2b30bcd90af5aa5256d2237c885d преди ba6c4fc662853f6662e4db060cf88ee994053e21; b64ec075bded2b30bcd90af5aa5256d2237c885d преди 9154542070ca7eadb3c764a882f39a127677854b; b64ec075bded2b30bcd90af5aa5256d2237c885d преди 74f577c722c99248d804eca18e7de7c5e47549d7; b64ec075bded2b30bcd90af5aa5256d2237c885d преди 0af37c217edf15fa21dac1c40822086df356c6bb
    • Linux Linux: 4.18; преди 4.18; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; 7.2 до *

    История

    • 24 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-97415: Linux | freedomonline.bg