https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 01:49:54 +0000 https://db.gcve.eu/vuln/cve-2022-50221 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>drm/fb-helper: Fix out-of-bounds access</p> <p>Clip memory range to screen-buffer size to avoid out-of-bounds access in fbdev deferred I/O&#39;s damage handling.</p> <p>Fbdev&#39;s deferred I/O can only track pages. From the range of pages, the damage handler computes the clipping rectangle for the display update. If the fbdev screen buffer ends near the beginning of a page, that page could contain more scanlines. The damage handler would then track these non-existing scanlines as dirty and provoke an out-of-bounds access during the screen update. Hence, clip the maximum memory range to the size of the screen buffer.</p> <p>While at it, rename the variables min/max to min_off/max_off in drm_fb_helper_deferred_io(). This avoids confusion with the macros of the same name.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>drm/fb-helper: Fix out-of-bounds access</p> <p>Clip memory range to screen-buffer size to avoid out-of-bounds access in fbdev deferred I/O&#39;s damage handling.</p> <p>Fbdev&#39;s deferred I/O can only track pages. From the range of pages, the damage handler computes the clipping rectangle for the display update. If the fbdev screen buffer ends near the beginning of a page, that page could contain more scanlines. The damage handler would then track these non-existing scanlines as dirty and provoke an out-of-bounds access during the screen update. Hence, clip the maximum memory range to the size of the screen buffer.</p> <p>While at it, rename the variables min/max to min_off/max_off in drm_fb_helper_deferred_io(). This avoids confusion with the macros of the same name.</p> https://db.gcve.eu/vuln/cve-2022-50221