# CVE-2024-47733: linux: In the Linux kernel, the following vulnerability has been resolved:  netfs: Delete subtree of 'fs/netfs' when netfs m...

CVE-2024-47733 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-47733, released October 21, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-47733
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 21, 2024

## 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:  <TASK>  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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.11.2-1 | [DEBIAN-CVE-2024-47733](https://patchblox.com/security/data/fix/linux/debian-cve-2024-47733.md) | Oct 21, 2024 |
| Linux | linux Debian 14 | 6.11.2-1 | [DEBIAN-CVE-2024-47733](https://patchblox.com/security/data/fix/linux/debian-cve-2024-47733.md) | Oct 21, 2024 |

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