{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-57952 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-57952 is a high-severity denial of service vulnerability in Linux kernel, published on 12 Feb 2025. 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-2024-57952 and fix it if it is affected.\n\nWhat it is: CVE-2024-57952 is a high-severity denial of service vulnerability in Linux kernel, published on 12 Feb 2025. 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-2024-57952 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-2024-57952/ (Markdown: https://insights.sbomify.com/CVE-2024-57952/index.md)","id":"CVE-2024-57952","markdown":"https://insights.sbomify.com/CVE-2024-57952/index.md","name":"CVE-2024-57952","record":{"aliases":["BELL-CVE-2024-57952","DEBIAN-CVE-2024-57952","GHSA-qxjr-36pm-q2q2","ROOT-OS-DEBIAN-11-CVE-2024-57952","ROOT-OS-DEBIAN-12-CVE-2024-57952","ROOT-OS-UBUNTU-2204-CVE-2024-57952","UBUNTU-CVE-2024-57952"],"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 logic error in the Linux kernel directory offset allocator causes directory entries to become permanently invisible on 32-bit systems after counter wrap.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"libfs: fix infinite directory reads for offset dir\"\n\nThe current directory offset allocator (based on mtree_alloc_cyclic)\nstores the next offset value to return in octx-\u003enext_offset. This\nmechanism typically returns values that increase monotonically over\ntime. Eventually, though, the newly allocated offset value wraps\nback to a low number (say, 2) which is smaller than other already-\nallocated offset values.\n\nYu Kuai \u003cyukuai3@huawei.com\u003e reports that, after commit 64a7ce76fb90\n(\"libfs: fix infinite directory reads for offset dir\"), if a\ndirectory's offset allocator wraps, existing entries are no longer\nvisible via readdir/getdents because offset_readdir() stops listing\nentries once an entry's offset is larger than octx-\u003enext_offset.\nThese entries vanish persistently -- they can be looked up, but will\nnever again appear in readdir(3) output.\n\nThe reason for this is that the commit treats directory offsets as\nmonotonically increasing integer values rather than opaque cookies,\nand introduces this comparison:\n\n\tif (dentry2offset(dentry) \u003e= last_index) {\n\nOn 64-bit platforms, the directory offset value upper bound is\n2^63 - 1. Directory offsets will monotonically increase for millions\nof years without wrapping.\n\nOn 32-bit platforms, however, LONG_MAX is 2^31 - 1. The allocator\ncan wrap after only a few weeks (at worst).\n\nRevert commit 64a7ce76fb90 (\"libfs: fix infinite directory reads for\noffset dir\") to prepare for a fix that can work properly on 32-bit\nsystems and might apply to recent LTS kernels where shmem employs\nthe simple_offset mechanism.","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":"Revert \"libfs: fix infinite directory reads for offset dir\"","id":"CVE-2024-57952","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2024"},"n_packages":0,"n_references":3,"next":{"headline":"rtc: tps6594: Fix integer overflow on 32bit systems","id":"CVE-2024-57953"},"packages":[],"prev":{"headline":"hrtimers: Handle CPU state correctly on hotplug","id":"CVE-2024-57951"},"products":["Linux"],"published":"2025-02-12","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A logic error in the Linux kernel directory offset allocator causes directory entries to become permanently invisible on 32-bit systems after counter wrap.","url":"https://insights.sbomify.com/CVE-2024-57952/"}