{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-47709 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-47709 is a medium-severity use after free vulnerability in Linux kernel, published on 21 Oct 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-2024-47709 and fix it if it is affected.\n\nWhat it is: CVE-2024-47709 is a medium-severity use after free vulnerability in Linux kernel, published on 21 Oct 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-2024-47709 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-2024-47709/ (Markdown: https://insights.sbomify.com/CVE-2024-47709/index.md)","id":"CVE-2024-47709","markdown":"https://insights.sbomify.com/CVE-2024-47709/index.md","name":"CVE-2024-47709","record":{"aliases":["AZL-51189","BELL-CVE-2024-47709","DEBIAN-CVE-2024-47709","GHSA-x972-pghh-qmrh","UBUNTU-CVE-2024-47709"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel CAN BCM","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel CAN BCM module allows local attackers to trigger a kernel warning and potential denial of service.","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":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":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: bcm: Clear bo-\u003ebcm_proc_read after remove_proc_entry().\n\nsyzbot reported a warning in bcm_release(). [0]\n\nThe blamed change fixed another warning that is triggered when\nconnect() is issued again for a socket whose connect()ed device has\nbeen unregistered.\n\nHowever, if the socket is just close()d without the 2nd connect(), the\nremaining bo-\u003ebcm_proc_read triggers unnecessary remove_proc_entry()\nin bcm_release().\n\nLet's clear bo-\u003ebcm_proc_read after remove_proc_entry() in bcm_notify().\n\n[0]\nname '4986'\nWARNING: CPU: 0 PID: 5234 at fs/proc/generic.c:711 remove_proc_entry+0x2e7/0x5d0 fs/proc/generic.c:711\nModules linked in:\nCPU: 0 UID: 0 PID: 5234 Comm: syz-executor606 Not tainted 6.11.0-rc5-syzkaller-00178-g5517ae241919 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\nRIP: 0010:remove_proc_entry+0x2e7/0x5d0 fs/proc/generic.c:711\nCode: ff eb 05 e8 cb 1e 5e ff 48 8b 5c 24 10 48 c7 c7 e0 f7 aa 8e e8 2a 38 8e 09 90 48 c7 c7 60 3a 1b 8c 48 89 de e8 da 42 20 ff 90 \u003c0f\u003e 0b 90 90 48 8b 44 24 18 48 c7 44 24 40 0e 36 e0 45 49 c7 04 07\nRSP: 0018:ffffc9000345fa20 EFLAGS: 00010246\nRAX: 2a2d0aee2eb64600 RBX: ffff888032f1f548 RCX: ffff888029431e00\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\nRBP: ffffc9000345fb08 R08: ffffffff8155b2f2 R09: 1ffff1101710519a\nR10: dffffc0000000000 R11: ffffed101710519b R12: ffff888011d38640\nR13: 0000000000000004 R14: 0000000000000000 R15: dffffc0000000000\nFS:  0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007fcfb52722f0 CR3: 000000000e734000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n bcm_release+0x250/0x880 net/can/bcm.c:1578\n __sock_release net/socket.c:659 [inline]\n sock_close+0xbc/0x240 net/socket.c:1421\n __fput+0x24a/0x8a0 fs/file_table.c:422\n task_work_run+0x24f/0x310 kernel/task_work.c:228\n exit_task_work include/linux/task_work.h:40 [inline]\n do_exit+0xa2f/0x27f0 kernel/exit.c:882\n do_group_exit+0x207/0x2c0 kernel/exit.c:1031\n __do_sys_exit_group kernel/exit.c:1042 [inline]\n __se_sys_exit_group kernel/exit.c:1040 [inline]\n __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1040\n x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7fcfb51ee969\nCode: Unable to access opcode bytes at 0x7fcfb51ee93f.\nRSP: 002b:00007ffce0109ca8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\nRAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fcfb51ee969\nRDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001\nRBP: 00007fcfb526f3b0 R08: ffffffffffffffb8 R09: 0000555500000000\nR10: 0000555500000000 R11: 0000000000000246 R12: 00007fcfb526f3b0\nR13: 0000000000000000 R14: 00007fcfb5271ee0 R15: 00007fcfb51bf160\n \u003c/TASK\u003e","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":"can: bcm: Clear bo-\u003ebcm_proc_read after remove_proc_entry().","id":"CVE-2024-47709","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":9,"next":{"headline":"sock_map: Add a cond_resched() in sock_hash_free()","id":"CVE-2024-47710"},"packages":[],"prev":{"headline":"netkit: Assign missing bpf_net_context","id":"CVE-2024-47708"},"products":["Linux"],"published":"2024-10-21","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel CAN BCM module allows local attackers to trigger a kernel warning and potential denial of service.","url":"https://insights.sbomify.com/CVE-2024-47709/"}