CVE-2024-47733

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> netfs: Delete subtree of &amp;#39;fs/netfs&amp;#39; when netfs module exits<br /> <br /> In netfs_init() or fscache_proc_init(), we create dentry under &amp;#39;fs/netfs&amp;#39;,<br /> but in netfs_exit(), we only delete the proc entry of &amp;#39;fs/netfs&amp;#39; without<br /> deleting its subtree. This triggers the following WARNING:<br /> <br /> ==================================================================<br /> remove_proc_entry: removing non-empty directory &amp;#39;fs/netfs&amp;#39;, leaking at least &amp;#39;requests&amp;#39;<br /> WARNING: CPU: 4 PID: 566 at fs/proc/generic.c:717 remove_proc_entry+0x160/0x1c0<br /> Modules linked in: netfs(-)<br /> CPU: 4 UID: 0 PID: 566 Comm: rmmod Not tainted 6.11.0-rc3 #860<br /> RIP: 0010:remove_proc_entry+0x160/0x1c0<br /> Call Trace:<br /> <br /> netfs_exit+0x12/0x620 [netfs]<br /> __do_sys_delete_module.isra.0+0x14c/0x2e0<br /> do_syscall_64+0x4b/0x110<br /> entry_SYSCALL_64_after_hwframe+0x76/0x7e<br /> ==================================================================<br /> <br /> Therefore use remove_proc_subtree() instead of remove_proc_entry() to<br /> fix the above problem.