{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-71107 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-71107 is a medium-severity vulnerability in Linux kernel, published on 14 Jan 2026. 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-2025-71107 and fix it if it is affected.\n\nWhat it is: CVE-2025-71107 is a medium-severity vulnerability in Linux kernel, published on 14 Jan 2026. 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-2025-71107 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-2025-71107/ (Markdown: https://insights.sbomify.com/CVE-2025-71107/index.md)","id":"CVE-2025-71107","markdown":"https://insights.sbomify.com/CVE-2025-71107/index.md","name":"CVE-2025-71107","record":{"aliases":["BELL-CVE-2025-71107","DEBIAN-CVE-2025-71107","GHSA-mcmw-vr9c-grh2","ROOT-OS-DEBIAN-13-CVE-2025-71107","ROOT-OS-UBUNTU-2204-CVE-2025-71107","ROOT-OS-UBUNTU-2404-CVE-2025-71107","UBUNTU-CVE-2025-71107"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A race condition in the Linux kernel f2fs filesystem can cause a kernel crash during unmount, leading to denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: ensure node page reads complete before f2fs_put_super() finishes\n\nXfstests generic/335, generic/336 sometimes crash with the following message:\n\nF2FS-fs (dm-0): detect filesystem reference count leak during umount, type: 9, count: 1\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/super.c:1939!\nOops: invalid opcode: 0000 [#1] SMP NOPTI\nCPU: 1 UID: 0 PID: 609351 Comm: umount Tainted: G        W           6.17.0-rc5-xfstests-g9dd1835ecda5 #1 PREEMPT(none)\nTainted: [W]=WARN\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nRIP: 0010:f2fs_put_super+0x3b3/0x3c0\nCall Trace:\n \u003cTASK\u003e\n generic_shutdown_super+0x7e/0x190\n kill_block_super+0x1a/0x40\n kill_f2fs_super+0x9d/0x190\n deactivate_locked_super+0x30/0xb0\n cleanup_mnt+0xba/0x150\n task_work_run+0x5c/0xa0\n exit_to_user_mode_loop+0xb7/0xc0\n do_syscall_64+0x1ae/0x1c0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n \u003c/TASK\u003e\n---[ end trace 0000000000000000 ]---\n\nIt appears that sometimes it is possible that f2fs_put_super() is called before\nall node page reads are completed.\nAdding a call to f2fs_wait_on_all_pages() for F2FS_RD_NODE fixes the problem.","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: ensure node page reads complete before f2fs_put_super() finishes","id":"CVE-2025-71107","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":4,"next":{"headline":"usb: typec: ucsi: Handle incorrect num_connectors capability","id":"CVE-2025-71108"},"packages":[],"prev":{"headline":"fs: PM: Fix reverse check in filesystems_freeze_callback()","id":"CVE-2025-71106"},"products":["Linux"],"published":"2026-01-14","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-23","vendors":["Linux"]},"summary":"A race condition in the Linux kernel f2fs filesystem can cause a kernel crash during unmount, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2025-71107/"}