Към съдържанието
Търсене

CVE-2026-93268: 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: ext4: skip extra isize expansion during mount to prevent deadlock ext4_try_to_expand_extra_isize() is called from __ext4_mark_inode_dirty() while holding an active jbd2 handle. During mount (!SB_ACTIVE), the expand path may move xattrs to external blocks and release ea_inodes via iput(). When !SB_ACTIVE, iput() calls write_inode_now() which acquires s_writepages_rwsem, creating a circular lock dependency: s_writepages_rwsem --> jbd2_handle --> xattr_sem --> s_writepages_rwsem This can be triggered via: ext4_process_orphan() -> ext4_truncate() -> ext4_mark_inode_dirty() -> ext4_try_to_expand_extra_isize() or: ext4_evict_inode() -> ext4_mark_inode_dirty() -> ext4_try_to_expand_extra_isize() Skip expansion when !SB_ACTIVE. This is a minor loss of functionality (extra isize won't grow for these inodes during mount), which e2fsck can resolve later if needed.

    Засегнати продукти

    • Linux Linux: c8585c6fcaf2011de54c3592e80a634a2b9e1a7f преди 41897f1bcf4ace5f1f28d0be784b6f4f0e929641; c8585c6fcaf2011de54c3592e80a634a2b9e1a7f преди 9c3469377b1d8caba6bec6ef3c460810bbfb02cc; c8585c6fcaf2011de54c3592e80a634a2b9e1a7f преди 1dd4882dbdc8bfdf2182fa388883c143fac0902a; c8585c6fcaf2011de54c3592e80a634a2b9e1a7f преди 7ba09330d9ea6e996228316719eae812d7e04983; c8585c6fcaf2011de54c3592e80a634a2b9e1a7f преди c5e6434cc55f30220b228be237bb666351f9f4dd; c8585c6fcaf2011de54c3592e80a634a2b9e1a7f преди 7ace189b9ea79cf78df9c32b940ce12735f9459a; c8585c6fcaf2011de54c3592e80a634a2b9e1a7f преди 2fb8ff81659a57c42bb7b49e8339a2be2a318ef8; c8585c6fcaf2011de54c3592e80a634a2b9e1a7f преди 7461c60b9c6a839b13ad4c3490681a0cf5aa0637
    • Linux Linux: 4.7; преди 4.7; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

    История

    • 24 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-93268: Linux | freedomonline.bg