{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-53616 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53616 is a high-severity use after free vulnerability in Linux kernel, published on 4 Oct 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-2023-53616 and fix it if it is affected.\n\nWhat it is: CVE-2023-53616 is a high-severity use after free vulnerability in Linux kernel, published on 4 Oct 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-2023-53616 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-2023-53616/ (Markdown: https://insights.sbomify.com/CVE-2023-53616/index.md)","id":"CVE-2023-53616","markdown":"https://insights.sbomify.com/CVE-2023-53616/index.md","name":"CVE-2023-53616","record":{"aliases":["BELL-CVE-2023-53616","DEBIAN-CVE-2023-53616","GHSA-v852-w8jm-hg43","UBUNTU-CVE-2023-53616"],"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 JFS","requires_auth":"low_privilege","summary":"A double-free vulnerability in the Linux kernel's JFS filesystem allows local attackers to cause a system crash or potentially execute arbitrary code.","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":"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-415","name":"Double Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\njfs: fix invalid free of JFS_IP(ipimap)-\u003ei_imap in diUnmount\n\nsyzbot found an invalid-free in diUnmount:\n\nBUG: KASAN: double-free in slab_free mm/slub.c:3661 [inline]\nBUG: KASAN: double-free in __kmem_cache_free+0x71/0x110 mm/slub.c:3674\nFree of addr ffff88806f410000 by task syz-executor131/3632\n\n CPU: 0 PID: 3632 Comm: syz-executor131 Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\n Call Trace:\n  \u003cTASK\u003e\n  __dump_stack lib/dump_stack.c:88 [inline]\n  dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106\n  print_address_description+0x74/0x340 mm/kasan/report.c:284\n  print_report+0x107/0x1f0 mm/kasan/report.c:395\n  kasan_report_invalid_free+0xac/0xd0 mm/kasan/report.c:460\n  ____kasan_slab_free+0xfb/0x120\n  kasan_slab_free include/linux/kasan.h:177 [inline]\n  slab_free_hook mm/slub.c:1724 [inline]\n  slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1750\n  slab_free mm/slub.c:3661 [inline]\n  __kmem_cache_free+0x71/0x110 mm/slub.c:3674\n  diUnmount+0xef/0x100 fs/jfs/jfs_imap.c:195\n  jfs_umount+0x108/0x370 fs/jfs/jfs_umount.c:63\n  jfs_put_super+0x86/0x190 fs/jfs/super.c:194\n  generic_shutdown_super+0x130/0x310 fs/super.c:492\n  kill_block_super+0x79/0xd0 fs/super.c:1428\n  deactivate_locked_super+0xa7/0xf0 fs/super.c:332\n  cleanup_mnt+0x494/0x520 fs/namespace.c:1186\n  task_work_run+0x243/0x300 kernel/task_work.c:179\n  exit_task_work include/linux/task_work.h:38 [inline]\n  do_exit+0x664/0x2070 kernel/exit.c:820\n  do_group_exit+0x1fd/0x2b0 kernel/exit.c:950\n  __do_sys_exit_group kernel/exit.c:961 [inline]\n  __se_sys_exit_group kernel/exit.c:959 [inline]\n  __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:959\n  do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n  do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[...]\n\nJFS_IP(ipimap)-\u003ei_imap is not setting to NULL after free in diUnmount.\nIf jfs_remount() free JFS_IP(ipimap)-\u003ei_imap but then failed at diMount().\nJFS_IP(ipimap)-\u003ei_imap will be freed once again.\nFix this problem by setting JFS_IP(ipimap)-\u003ei_imap to NULL after free.","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":"jfs: fix invalid free of JFS_IP(ipimap)-\u003ei_imap in diUnmount","id":"CVE-2023-53616","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2023"},"n_packages":0,"n_references":8,"next":{"headline":"soc: aspeed: socinfo: Add kfree for kstrdup","id":"CVE-2023-53617"},"packages":[],"prev":{"headline":"scsi: qla2xxx: Fix deletion race condition","id":"CVE-2023-53615"},"products":["Linux"],"published":"2025-10-04","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":"2026-08-05","vendors":["Linux"]},"summary":"A double-free vulnerability in the Linux kernel's JFS filesystem allows local attackers to cause a system crash or potentially execute arbitrary code.","url":"https://insights.sbomify.com/CVE-2023-53616/"}