NVD / CVE Program· CNA Linux

CVE-2024-47733: netfs: Delete subtree of 'fs/netfs' when netfs module exits

Noroxi assessment

Priority: Monitor (action score 22/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.23% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Linux Linux 3c58a9575e02c2b90a3180007d57105ceaa7c246, 603f95cefbee06a31b03137b777f03e3c2163d72, 7a9eaf97d56625e55b31a7beb558e1ee185ca461.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 3c58a9575e02c2b90a3180007d57105ceaa7c246, 603f95cefbee06a31b03137b777f03e3c2163d72, 7a9eaf97d56625e55b31a7beb558e1ee185ca461 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available

Denial of service

BDU:2025-13726

Published: Oct 21, 2024
Updated: Jun 17, 2026
EPSS: 0.2% · 14th percentile
CWE: CWE-772

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 22 / 40 · 5.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

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Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
linux	linux kernel	cpe:2.3:o:linux:linux_kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

linux linux kernel6.8 and later · before 6.10.13
linux linux kernel6.11 and later · before 6.11.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

Linux Linux
- 6.8affected
- 7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab and later · before 603f95cefbee06a31b03137b777f03e3c2163d72affected · git
- 7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab and later · before 7a9eaf97d56625e55b31a7beb558e1ee185ca461affected · git
- 7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab and later · before 3c58a9575e02c2b90a3180007d57105ceaa7c246affected · git
- before 6.8not affected · semver
- 6.10.13 and later · up to and including 6.10.*not affected · semver
- 6.11.2 and later · up to and including 6.11.*not affected · semver
- 6.12 and laternot affected · original_commit_for_fix

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:13	linux	before 6.11.2-1	6.11.2-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
90Now
CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
89Now
CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
85Now

Published before and after this one in the same product

← EarlierCVE-2024-47731Oct 21, 2024 · drivers/perf: Fix ali_drw_pmu driver interrupt status clearing
22Monitor
← EarlierCVE-2024-47732Oct 21, 2024 · crypto: iaa - Fix potential use after free bug
22Monitor
Later →CVE-2024-47734Oct 21, 2024 · bonding: Fix unnecessary warnings and logs from bond_xdp_get_xmit_slave()
22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Linux Linux	3c58a9575e02c2b90a3180007d57105ceaa7c246	Vendor (CNA)
Linux Linux	603f95cefbee06a31b03137b777f03e3c2163d72	Vendor (CNA)
Linux Linux	7a9eaf97d56625e55b31a7beb558e1ee185ca461	Vendor (CNA)
debian:linux	6.11.2-1 · Debian:13	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2022-50189240 days aparttools/power turbostat: Fix file pointer leak
28Monitor
CVE-2024-5307429 days apartwifi: iwlwifi: mvm: don't leak a link on AP removal
22Monitor
CVE-2021-47283153 days apartnet:sfc: fix non-freed irq in legacy irq mode
22Monitor
CVE-2024-35821157 days apartubifs: Set page uptodate in the correct place
22Monitor
CVE-2023-53152329 days apartdrm/amdgpu: fix calltrace warning in amddrm_buddy_fini
22Monitor
CVE-2023-53199329 days apartwifi: ath9k: hif_usb: clean up skbs if ath9k_hif_usb_rx_stream() fails
22Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).