{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-53218 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-53218 is a high-severity use after free vulnerability in Linux kernel, published on 27 Dec 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-53218 and fix it if it is affected.\n\nWhat it is: CVE-2024-53218 is a high-severity use after free vulnerability in Linux kernel, published on 27 Dec 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2024-53218 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2024-53218/ (Markdown: https://insights.sbomify.com/CVE-2024-53218/index.md)","id":"CVE-2024-53218","markdown":"https://insights.sbomify.com/CVE-2024-53218/index.md","name":"CVE-2024-53218","record":{"aliases":["BELL-CVE-2024-53218","DEBIAN-CVE-2024-53218","GHSA-3gqx-rv8x-9m5c","ROOT-OS-DEBIAN-11-CVE-2024-53218","ROOT-OS-DEBIAN-12-CVE-2024-53218","ROOT-OS-UBUNTU-2204-CVE-2024-53218","UBUNTU-CVE-2024-53218"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel f2fs","requires_auth":"low_privilege","summary":"A race condition in the Linux kernel's f2fs filesystem allows a use-after-free during concurrent shutdown operations, potentially leading to system crashes or code execution.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix race in concurrent f2fs_stop_gc_thread\n\nIn my test case, concurrent calls to f2fs shutdown report the following\nstack trace:\n\n Oops: general protection fault, probably for non-canonical address 0xc6cfff63bb5513fc: 0000 [#1] PREEMPT SMP PTI\n CPU: 0 UID: 0 PID: 678 Comm: f2fs_rep_shutdo Not tainted 6.12.0-rc5-next-20241029-g6fb2fa9805c5-dirty #85\n Call Trace:\n  \u003cTASK\u003e\n  ? show_regs+0x8b/0xa0\n  ? __die_body+0x26/0xa0\n  ? die_addr+0x54/0x90\n  ? exc_general_protection+0x24b/0x5c0\n  ? asm_exc_general_protection+0x26/0x30\n  ? kthread_stop+0x46/0x390\n  f2fs_stop_gc_thread+0x6c/0x110\n  f2fs_do_shutdown+0x309/0x3a0\n  f2fs_ioc_shutdown+0x150/0x1c0\n  __f2fs_ioctl+0xffd/0x2ac0\n  f2fs_ioctl+0x76/0xe0\n  vfs_ioctl+0x23/0x60\n  __x64_sys_ioctl+0xce/0xf0\n  x64_sys_call+0x2b1b/0x4540\n  do_syscall_64+0xa7/0x240\n  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThe root cause is a race condition in f2fs_stop_gc_thread() called from\ndifferent f2fs shutdown paths:\n\n  [CPU0]                       [CPU1]\n  ----------------------       -----------------------\n  f2fs_stop_gc_thread          f2fs_stop_gc_thread\n                                 gc_th = sbi-\u003egc_thread\n    gc_th = sbi-\u003egc_thread\n    kfree(gc_th)\n    sbi-\u003egc_thread = NULL\n                                 \u003c gc_th != NULL \u003e\n                                 kthread_stop(gc_th-\u003ef2fs_gc_task) //UAF\n\nThe commit c7f114d864ac (\"f2fs: fix to avoid use-after-free in\nf2fs_stop_gc_thread()\") attempted to fix this issue by using a read\nsemaphore to prevent races between shutdown and remount threads, but\nit fails to prevent all race conditions.\n\nFix it by converting to write lock of s_umount in f2fs_do_shutdown().","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"f2fs: fix race in concurrent f2fs_stop_gc_thread","id":"CVE-2024-53218","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2024"},"n_packages":0,"n_references":4,"next":{"headline":"virtiofs: use pages instead of pointer for kernel direct IO","id":"CVE-2024-53219"},"packages":[],"prev":{"headline":"NFSD: Prevent NULL dereference in nfsd4_process_cb_update()","id":"CVE-2024-53217"},"products":["Linux"],"published":"2024-12-27","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A race condition in the Linux kernel's f2fs filesystem allows a use-after-free during concurrent shutdown operations, potentially leading to system crashes or code execution.","url":"https://insights.sbomify.com/CVE-2024-53218/"}