https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 28 Sep 2026 23:37:32 +0000 https://vulnerability.circl.lu/vuln/cve-2024-53143 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>fsnotify: Fix ordering of iput() and watched_objects decrement</p> <p>Ensure the superblock is kept alive until we&#39;re done with iput(). Holding a reference to an inode is not allowed unless we ensure the superblock stays alive, which fsnotify does by keeping the watched_objects count elevated, so iput() must happen before the watched_objects decrement. This can lead to a UAF of something like sb-&gt;s_fs_info in tmpfs, but the UAF is hard to hit because race orderings that oops are more likely, thanks to the CHECK_DATA_CORRUPTION() block in generic_shutdown_super().</p> <p>Also, ensure that fsnotify_put_sb_watched_objects() doesn&#39;t call fsnotify_sb_watched_objects() on a superblock that may have already been freed, which would cause a UAF read of sb-&gt;s_fsnotify_info.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>fsnotify: Fix ordering of iput() and watched_objects decrement</p> <p>Ensure the superblock is kept alive until we&#39;re done with iput(). Holding a reference to an inode is not allowed unless we ensure the superblock stays alive, which fsnotify does by keeping the watched_objects count elevated, so iput() must happen before the watched_objects decrement. This can lead to a UAF of something like sb-&gt;s_fs_info in tmpfs, but the UAF is hard to hit because race orderings that oops are more likely, thanks to the CHECK_DATA_CORRUPTION() block in generic_shutdown_super().</p> <p>Also, ensure that fsnotify_put_sb_watched_objects() doesn&#39;t call fsnotify_sb_watched_objects() on a superblock that may have already been freed, which would cause a UAF read of sb-&gt;s_fsnotify_info.</p> https://vulnerability.circl.lu/vuln/cve-2024-53143