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CVE-2026-80881: 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: ocfs2: fix buffer head management in ocfs2_read_blocks() In ocfs2_read_blocks(), caller should't assume that buffer head returned by 'sb_getblk()' is exclusively owned and so 'put_bh()' always drops b_count from 1 to 0. If it is not so, buffer head remains on hold and likely to be returned by the next call to 'sb_getblk()' unchanged - that is, with BH_Uptodate bit set even if it has failed validation previously, thus allowing to insert that buffer head into OCFS2 metadata cache and submit it to upper layers. To avoid such a scenario, BH_Uptodate should be cleared immediately after 'validate()' callback has detected some data inconsistency.

    Засегнати продукти

    • Linux Linux: cf76c78595ca87548ca5e45c862ac9e0949c4687 преди a4eae1499c760949a93459d11390bd1fd823d31d; cf76c78595ca87548ca5e45c862ac9e0949c4687 преди 4ab17e328522a4df5fe0f0dcf39098118b1feeaa; cf76c78595ca87548ca5e45c862ac9e0949c4687 преди 5927acb3e2c99985a14adecd9d1b67ba191c622d; cf76c78595ca87548ca5e45c862ac9e0949c4687 преди ecb3f9386f4353034caef77239473c627232db17; cf76c78595ca87548ca5e45c862ac9e0949c4687 преди 61f7a5acb3bf8fc97dad78f54b1e8d0e1c819766; cf76c78595ca87548ca5e45c862ac9e0949c4687 преди 0e389fc290c350c67591abf4c367119f4689f310; cf76c78595ca87548ca5e45c862ac9e0949c4687 преди 9e7a057934cdd58e4cc94350bcfe5367bbee0f8e; cf76c78595ca87548ca5e45c862ac9e0949c4687 преди 6371a07148ee979af22a9d6f4c277462953a9a4a; 01f93d5e36753fc4d06ec67f05ce78c9c6f2dd56; 65cbd1279f4b999d56a838344a30642db24cd215; 97e1db17bc1ef4c2e1789bc9323c7be44fba53f8; 6c150df9c2e80b5cf86f5a0d98beb7390ad63bfc; 4.4.204 преди 4.5; 4.9.204 преди 4.10; 4.14.157 преди 4.15; 4.19.87 преди 4.20
    • Linux Linux: 4.20; преди 4.20; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; 7.2 до *

    История

    • 4 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-80881: Linux | freedomonline.bg