https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 05 Oct 2026 19:33:53 +0000 https://vulnerability.circl.lu/vuln/cve-2026-45981 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>s390/cio: Fix device lifecycle handling in css_alloc_subchannel()</p> <p>`css_alloc_subchannel()` calls `device_initialize()` before setting up the DMA masks. If `dma_set_coherent_mask()` or `dma_set_mask()` fails, the error path frees the subchannel structure directly, bypassing the device model reference counting.</p> <p>Once `device_initialize()` has been called, the embedded struct device must be released via `put_device()`, allowing the release callback to free the container structure.</p> <p>Fix the error path by dropping the initial device reference with `put_device()` instead of calling `kfree()` directly.</p> <p>This ensures correct device lifetime handling and avoids potential use-after-free or double-free issues.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>s390/cio: Fix device lifecycle handling in css_alloc_subchannel()</p> <p>`css_alloc_subchannel()` calls `device_initialize()` before setting up the DMA masks. If `dma_set_coherent_mask()` or `dma_set_mask()` fails, the error path frees the subchannel structure directly, bypassing the device model reference counting.</p> <p>Once `device_initialize()` has been called, the embedded struct device must be released via `put_device()`, allowing the release callback to free the container structure.</p> <p>Fix the error path by dropping the initial device reference with `put_device()` instead of calling `kfree()` directly.</p> <p>This ensures correct device lifetime handling and avoids potential use-after-free or double-free issues.</p> https://vulnerability.circl.lu/vuln/cve-2026-45981