https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 03:15:19 +0000 https://vulnerability.circl.lu/vuln/cve-2026-90209 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>s390/debug: Fix deadlock during unregister</p> <p>Unregistering an s390dbf debug area while one of the associated debugfs files is being written to can cause a deadlock:</p> <p>$ echo &gt;.../vmur/level $ rmmod vmur =================================================== debugfs write debugfs_file_get() debug_unregister() mutex_lock(debug_mutex) debugfs_remove() wait for debugfs_file_put() debug_file_ops.write() debug_input() mutex_lock(debug_mutex) ==&gt; DEADLOCK</p> <p>Fix this by splitting debug_unregister() into an s390dbf and debugfs part, and running only the s390dbf part with debug_mutex locked.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>s390/debug: Fix deadlock during unregister</p> <p>Unregistering an s390dbf debug area while one of the associated debugfs files is being written to can cause a deadlock:</p> <p>$ echo &gt;.../vmur/level $ rmmod vmur =================================================== debugfs write debugfs_file_get() debug_unregister() mutex_lock(debug_mutex) debugfs_remove() wait for debugfs_file_put() debug_file_ops.write() debug_input() mutex_lock(debug_mutex) ==&gt; DEADLOCK</p> <p>Fix this by splitting debug_unregister() into an s390dbf and debugfs part, and running only the s390dbf part with debug_mutex locked.</p> https://vulnerability.circl.lu/vuln/cve-2026-90209