https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 14:29:10 +0000 https://vulnerability.circl.lu/vuln/cve-2026-43163 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>md/bitmap: fix GPF in write_page caused by resize race</p> <p>A General Protection Fault occurs in write_page() during array resize: RIP: 0010:write_page+0x22b/0x3c0 [md_mod]</p> <p>This is a use-after-free race between bitmap_daemon_work() and __bitmap_resize(). The daemon iterates over `bitmap-&gt;storage.filemap` without locking, while the resize path frees that storage via md_bitmap_file_unmap(). `quiesce()` does not stop the md thread, allowing concurrent access to freed pages.</p> <p>Fix by holding `mddev-&gt;bitmap_info.mutex` during the bitmap update.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>md/bitmap: fix GPF in write_page caused by resize race</p> <p>A General Protection Fault occurs in write_page() during array resize: RIP: 0010:write_page+0x22b/0x3c0 [md_mod]</p> <p>This is a use-after-free race between bitmap_daemon_work() and __bitmap_resize(). The daemon iterates over `bitmap-&gt;storage.filemap` without locking, while the resize path frees that storage via md_bitmap_file_unmap(). `quiesce()` does not stop the md thread, allowing concurrent access to freed pages.</p> <p>Fix by holding `mddev-&gt;bitmap_info.mutex` during the bitmap update.</p> https://vulnerability.circl.lu/vuln/cve-2026-43163