CVE Published: 21/10/2024 |
CVE Updated: 19/11/2024 |
CVE Year: 2024 Source: Linux |
Vendor: Linux |
Product: Linux Status : PUBLISHED
CVE-2024-47733 Description
In the Linux kernel, the following vulnerability has been resolved:
netfs: Delete subtree of \'fs/netfs\' when netfs module exits
In netfs_init() or fscache_proc_init(), we create dentry under \'fs/netfs\',
but in netfs_exit(), we only delete the proc entry of \'fs/netfs\' without
deleting its subtree. This triggers the following WARNING:
==================================================================
remove_proc_entry: removing non-empty directory \'fs/netfs\', leaking at least \'requests\'
WARNING: CPU: 4 PID: 566 at fs/proc/generic.c:717 remove_proc_entry+0x160/0x1c0
Modules linked in: netfs(-)
CPU: 4 UID: 0 PID: 566 Comm: rmmod Not tainted 6.11.0-rc3 #860
RIP: 0010:remove_proc_entry+0x160/0x1c0
Call Trace:
netfs_exit+0x12/0x620 [netfs]
__do_sys_delete_module.isra.0+0x14c/0x2e0
do_syscall_64+0x4b/0x110
entry_SYSCALL_64_after_hwframe+0x76/0x7e
==================================================================
Therefore use remove_proc_subtree() instead of remove_proc_entry() to
fix the above problem.