https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 06 Oct 2026 21:39:35 +0000 https://cve.radiocsirt.org/vuln/cve-2026-80956 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>dm-pcache: only hand out initialized cache segments</p> <p>get_cache_segment() scans the segment map up to cache-&gt;n_segs, the physical device segment count, but cache_segs_init() only initializes the first cache_info-&gt;n_segs segments. A crafted image with cache_info-&gt;n_segs smaller than the device count leaves the remaining pcache_cache_segment structs zeroed (segment.data == NULL), and the allocator can hand one to cache_kset_close(), which writes through the returned segment&#39;s data pointer with no NULL check.</p> <p>Bound the allocator&#39;s search to cache_info-&gt;n_segs so only initialized segments are ever returned. A conforming cache sets n_segs equal to the device segment count, so this rejects nothing legitimate.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>dm-pcache: only hand out initialized cache segments</p> <p>get_cache_segment() scans the segment map up to cache-&gt;n_segs, the physical device segment count, but cache_segs_init() only initializes the first cache_info-&gt;n_segs segments. A crafted image with cache_info-&gt;n_segs smaller than the device count leaves the remaining pcache_cache_segment structs zeroed (segment.data == NULL), and the allocator can hand one to cache_kset_close(), which writes through the returned segment&#39;s data pointer with no NULL check.</p> <p>Bound the allocator&#39;s search to cache_info-&gt;n_segs so only initialized segments are ever returned. A conforming cache sets n_segs equal to the device segment count, so this rejects nothing legitimate.</p> https://cve.radiocsirt.org/vuln/cve-2026-80956