Vulnerability in Kernel (CVE-2024-53218)

Summary

Vulnerability in Kernel (CVE-2024-53218). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 6.6.64, 6.11.11, 6.12.2 or later.

Original description

The description as published by the source.

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix race in concurrent f2fs_stop_gc_thread

In my test case, concurrent calls to f2fs shutdown report the following
stack trace:

Oops: general protection fault, probably for non-canonical address 0xc6cfff63bb5513fc: 0000 [#1] PREEMPT SMP PTI
CPU: 0 UID: 0 PID: 678 Comm: f2fs_rep_shutdo Not tainted 6.12.0-rc5-next-20241029-g6fb2fa9805c5-dirty #85
Call Trace:

? show_regs+0x8b/0xa0
? __die_body+0x26/0xa0
? die_addr+0x54/0x90
? exc_general_protection+0x24b/0x5c0
? asm_exc_general_protection+0x26/0x30
? kthread_stop+0x46/0x390
f2fs_stop_gc_thread+0x6c/0x110
f2fs_do_shutdown+0x309/0x3a0
f2fs_ioc_shutdown+0x150/0x1c0
__f2fs_ioctl+0xffd/0x2ac0
f2fs_ioctl+0x76/0xe0
vfs_ioctl+0x23/0x60
__x64_sys_ioctl+0xce/0xf0
x64_sys_call+0x2b1b/0x4540
do_syscall_64+0xa7/0x240
entry_SYSCALL_64_after_hwframe+0x76/0x7e

The root cause is a race condition in f2fs_stop_gc_thread() called from
different f2fs shutdown paths:

[CPU0] [CPU1]

f2fs_stop_gc_thread f2fs_stop_gc_thread
gc_th = sbi->gc_thread
gc_th = sbi->gc_thread
kfree(gc_th)
sbi->gc_thread = NULL
< gc_th != NULL >
kthread_stop(gc_th->f2fs_gc_task) //UAF

The commit c7f114d864ac ("f2fs: fix to avoid use-after-free in
f2fs_stop_gc_thread…

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2024-53218 has been found in Kernel.
Successful exploitation can lead to full system takeover.
What to do: upgrade Kernel to 6.6.64, 6.11.11, 6.12.2 or later.
If unsure, ask your IT team or search "Kernel CVE-2024-53218" on the vendor's site.

CVE-2024-53218 (Kernel)
Attack vector: local / no user interaction
Patched: 6.6.64, 6.11.11, 6.12.2 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (unclassified) exists in Kernel.

📍 Affected scope

Check the vendor advisory for the affected versions of Kernel.

🔥 Severity

Severity: ?. Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to 6.6.64, 6.11.11, 6.12.2.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'Kernel' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

1
Identify exposure identify
```
grep -r 'Kernel' . | grep -v node_modules
```
リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で Kernel を grep し、稼働しているサービス・バージョンを把握する。
2
Apply patch patch
```
Upgrade Kernel to 6.6.64, 6.11.11, 6.12.2
```
ステージング環境で 6.6.64, 6.11.11, 6.12.2 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
3
Post-deployment verification verify
```
Confirm patched version is live in production
```
パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

Linux Kernel

[{"type":"ECOSYSTEM","events":[{"introduced":"4.16.0"},{"fixed":"6.6.64"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.11.11"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.12.0"},{"fixed":"6.12.2"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

BellSoft Alpaquita BELL-CVE-2024-53218 linux-lts
Debian DEBIAN-CVE-2024-53218 linux
Ubuntu UBUNTU-CVE-2024-53218 linux-hwe-edge