https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 04:39:23 +0000 https://vulnerability.circl.lu/vuln/cve-2026-93053 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>speakup: keyhelp: guard letter_offsets possible out-of-range indexing</p> <p>help_init() builds letter_offsets[] by using the first byte of each function name as an index via `(start &amp; 31) - 1`. If function_names are overridden from sysfs (root) with a name starting outside [a–z], the index underflows or exceeds the array, leading to OOB write.</p> <p>Function names can be overridden with the following commands as root:</p> <p>modprobe speakup_soft echo &#34;0 _bad&#34; &gt; /sys/accessibility/speakup/i18n/function_names # then press Insert+2 on /dev/tty</p> <p>This fix checks the first letter in help_init(), and if it is not in the [a–z] range the function returns an error to the caller. Eventually this error is propagated to drivers/accessibility/speakup/main.c:2217, which causes a bleep sound.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>speakup: keyhelp: guard letter_offsets possible out-of-range indexing</p> <p>help_init() builds letter_offsets[] by using the first byte of each function name as an index via `(start &amp; 31) - 1`. If function_names are overridden from sysfs (root) with a name starting outside [a–z], the index underflows or exceeds the array, leading to OOB write.</p> <p>Function names can be overridden with the following commands as root:</p> <p>modprobe speakup_soft echo &#34;0 _bad&#34; &gt; /sys/accessibility/speakup/i18n/function_names # then press Insert+2 on /dev/tty</p> <p>This fix checks the first letter in help_init(), and if it is not in the [a–z] range the function returns an error to the caller. Eventually this error is propagated to drivers/accessibility/speakup/main.c:2217, which causes a bleep sound.</p> https://vulnerability.circl.lu/vuln/cve-2026-93053