Към съдържанието
Търсене

CVE-2026-23465: Linux

Няма оценка

CVSS

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: btrfs: log new dentries when logging parent dir of a conflicting inode If we log the parent directory of a conflicting inode, we are not logging the new dentries of the directory, so when we finish we have the parent directory's inode marked as logged but we did not log its new dentries. As a consequence if the parent directory is explicitly fsynced later and it does not have any new changes since we logged it, the fsync is a no-op and after a power failure the new dentries are missing. Example scenario: $ mkdir foo $ sync $rmdir foo $ mkdir dir1 $ mkdir dir2 # A file with the same name and parent as the directory we just deleted # and was persisted in a past transaction. So the deleted directory's # inode is a conflicting inode of this new file's inode. $ touch foo $ ln foo dir2/link # The fsync on dir2 will log the parent directory (".") because the # conflicting inode (deleted directory) does not exists anymore, but it # it does not log its new dentries (dir1). $ xfs_io -c "fsync" dir2 # This fsync on the parent directory is no-op, since the previous fsync # logged it (but without logging its new dentries). $ xfs_io -c "fsync" . <power failure> # After log replay dir1 is missing. Fix this by ensuring we log new dir dentries whenever we log the parent directory of a no longer existing conflicting inode. A test case for fstests will follow soon.

    Засегнати продукти

    • Linux Linux: a3baaf0d786e22fc86295fda9c58ba0dee07599f преди 6c23595c54cfeb878e3fbbb8eb08bc5061d0c2d4; a3baaf0d786e22fc86295fda9c58ba0dee07599f преди 56e72c8b02d982be775d9df025357c152383ee84; a3baaf0d786e22fc86295fda9c58ba0dee07599f преди f556b1e09d054e31f464c0fd37280c2b5a393fee; a3baaf0d786e22fc86295fda9c58ba0dee07599f преди 1cf30c73602c69d750c9345c47f2c0e9d0cfb578; a3baaf0d786e22fc86295fda9c58ba0dee07599f преди 6f5a51969b1deb79aefd2194b48fe7e78e72ff7e; a3baaf0d786e22fc86295fda9c58ba0dee07599f преди 9573a365ff9ff45da9222d3fe63695ce562beb24
    • Linux Linux: 5.1; преди 5.1; 6.1.191 до 6.1.*; 6.6.130 до 6.6.*; 6.12.78 до 6.12.*; 6.18.20 до 6.18.*; 6.19.10 до 6.19.*; 7.0 до *

    История

    • 3 април 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-23465: Linux | freedomonline.bg