https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 21:12:45 +0000 https://vulnerability.circl.lu/vuln/cve-2021-47477 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>comedi: dt9812: fix DMA buffers on stack</p> <p>USB transfer buffers are typically mapped for DMA and must not be allocated on the stack or transfers will fail.</p> <p>Allocate proper transfer buffers in the various command helpers and return an error on short transfers instead of acting on random stack data.</p> <p>Note that this also fixes a stack info leak on systems where DMA is not used as 32 bytes are always sent to the device regardless of how short the command is.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>comedi: dt9812: fix DMA buffers on stack</p> <p>USB transfer buffers are typically mapped for DMA and must not be allocated on the stack or transfers will fail.</p> <p>Allocate proper transfer buffers in the various command helpers and return an error on short transfers instead of acting on random stack data.</p> <p>Note that this also fixes a stack info leak on systems where DMA is not used as 32 bytes are always sent to the device regardless of how short the command is.</p> https://vulnerability.circl.lu/vuln/cve-2021-47477