{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-52810 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-52810 is a high-severity vulnerability in Linux kernel, published on 21 May 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-2023-52810 and fix it if it is affected.\n\nWhat it is: CVE-2023-52810 is a high-severity vulnerability in Linux kernel, published on 21 May 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-2023-52810 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-2023-52810/ (Markdown: https://insights.sbomify.com/CVE-2023-52810/index.md)","id":"CVE-2023-52810","markdown":"https://insights.sbomify.com/CVE-2023-52810/index.md","name":"CVE-2023-52810","record":{"aliases":["BELL-CVE-2023-52810","DEBIAN-CVE-2023-52810","GHSA-8gjf-xqc3-q68r","UBUNTU-CVE-2023-52810"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel JFS","requires_auth":"low_privilege","summary":"A negative shift exponent in the JFS filesystem can cause a kernel crash, leading to denial of service.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cna","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-1335","name":"Incorrect Bitwise Shift of Integer"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/jfs: Add check for negative db_l2nbperpage\n\nl2nbperpage is log2(number of blks per page), and the minimum legal\nvalue should be 0, not negative.\n\nIn the case of l2nbperpage being negative, an error will occur\nwhen subsequently used as shift exponent.\n\nSyzbot reported this bug:\n\nUBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:799:12\nshift exponent -16777216 is negative","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":"fs/jfs: Add check for negative db_l2nbperpage","id":"CVE-2023-52810","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"integer_overflow","year":"2023"},"n_packages":0,"n_references":9,"next":{"headline":"scsi: ibmvfc: Remove BUG_ON in the case of an empty event pool","id":"CVE-2023-52811"},"packages":[],"prev":{"headline":"scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup()","id":"CVE-2023-52809"},"products":["Linux"],"published":"2024-05-21","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":"2026-08-05","vendors":["Linux"]},"summary":"A negative shift exponent in the JFS filesystem can cause a kernel crash, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2023-52810/"}