https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 23:33:00 +0000 https://vulnerability.circl.lu/vuln/cve-2025-22124 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>md/md-bitmap: fix wrong bitmap_limit for clustermd when write sb</p> <p>In clustermd, separate write-intent-bitmaps are used for each cluster node:</p> <p>0 4k 8k 12k ------------------------------------------------------------------- | idle | md super | bm super [0] + bits | | bm bits[0, contd] | bm super[1] + bits | bm bits[1, contd] | | bm super[2] + bits | bm bits [2, contd] | bm super[3] + bits | | bm bits [3, contd] | | |</p> <p>So in node 1, pg_index in __write_sb_page() could equal to bitmap-&gt;storage.file_pages. Then bitmap_limit will be calculated to 0. md_super_write() will be called with 0 size. That means the first 4k sb area of node 1 will never be updated through filemap_write_page(). This bug causes hang of mdadm/clustermd_tests/01r1_Grow_resize.</p> <p>Here use (pg_index % bitmap-&gt;storage.file_pages) to make calculation of bitmap_limit correct.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>md/md-bitmap: fix wrong bitmap_limit for clustermd when write sb</p> <p>In clustermd, separate write-intent-bitmaps are used for each cluster node:</p> <p>0 4k 8k 12k ------------------------------------------------------------------- | idle | md super | bm super [0] + bits | | bm bits[0, contd] | bm super[1] + bits | bm bits[1, contd] | | bm super[2] + bits | bm bits [2, contd] | bm super[3] + bits | | bm bits [3, contd] | | |</p> <p>So in node 1, pg_index in __write_sb_page() could equal to bitmap-&gt;storage.file_pages. Then bitmap_limit will be calculated to 0. md_super_write() will be called with 0 size. That means the first 4k sb area of node 1 will never be updated through filemap_write_page(). This bug causes hang of mdadm/clustermd_tests/01r1_Grow_resize.</p> <p>Here use (pg_index % bitmap-&gt;storage.file_pages) to make calculation of bitmap_limit correct.</p> https://vulnerability.circl.lu/vuln/cve-2025-22124