{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-53824 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53824 is a high-severity vulnerability in Linux, published on 9 Dec 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-2023-53824 and fix it if it is affected.\n\nWhat it is: CVE-2023-53824 is a high-severity vulnerability in Linux, published on 9 Dec 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-2023-53824 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2023-53824/ (Markdown: https://insights.sbomify.com/CVE-2023-53824/index.md)","id":"CVE-2023-53824","markdown":"https://insights.sbomify.com/CVE-2023-53824/index.md","name":"CVE-2023-53824","record":{"aliases":["BELL-CVE-2023-53824","DEBIAN-CVE-2023-53824","GHSA-74c2-58xj-46fw","UBUNTU-CVE-2023-53824"],"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 data race in the Linux kernel netlink subsystem can lead to inconsistent state and potential denial of service.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"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":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: annotate lockless accesses to nlk-\u003emax_recvmsg_len\n\nsyzbot reported a data-race in data-race in netlink_recvmsg() [1]\n\nIndeed, netlink_recvmsg() can be run concurrently,\nand netlink_dump() also needs protection.\n\n[1]\nBUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg\n\nread to 0xffff888141840b38 of 8 bytes by task 23057 on cpu 0:\nnetlink_recvmsg+0xea/0x730 net/netlink/af_netlink.c:1988\nsock_recvmsg_nosec net/socket.c:1017 [inline]\nsock_recvmsg net/socket.c:1038 [inline]\n__sys_recvfrom+0x1ee/0x2e0 net/socket.c:2194\n__do_sys_recvfrom net/socket.c:2212 [inline]\n__se_sys_recvfrom net/socket.c:2208 [inline]\n__x64_sys_recvfrom+0x78/0x90 net/socket.c:2208\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nwrite to 0xffff888141840b38 of 8 bytes by task 23037 on cpu 1:\nnetlink_recvmsg+0x114/0x730 net/netlink/af_netlink.c:1989\nsock_recvmsg_nosec net/socket.c:1017 [inline]\nsock_recvmsg net/socket.c:1038 [inline]\n____sys_recvmsg+0x156/0x310 net/socket.c:2720\n___sys_recvmsg net/socket.c:2762 [inline]\ndo_recvmmsg+0x2e5/0x710 net/socket.c:2856\n__sys_recvmmsg net/socket.c:2935 [inline]\n__do_sys_recvmmsg net/socket.c:2958 [inline]\n__se_sys_recvmmsg net/socket.c:2951 [inline]\n__x64_sys_recvmmsg+0xe2/0x160 net/socket.c:2951\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nvalue changed: 0x0000000000000000 -\u003e 0x0000000000001000\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 1 PID: 23037 Comm: syz-executor.2 Not tainted 6.3.0-rc4-syzkaller-00195-g5a57b48fdfcb #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023","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":"netlink: annotate lockless accesses to nlk-\u003emax_recvmsg_len","id":"CVE-2023-53824","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2023"},"n_packages":0,"n_references":5,"next":{"headline":"kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg().","id":"CVE-2023-53825"},"packages":[],"prev":{"headline":"block/rq_qos: protect rq_qos apis with a new lock","id":"CVE-2023-53823"},"products":["Linux"],"published":"2025-12-09","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A data race in the Linux kernel netlink subsystem can lead to inconsistent state and potential denial of service.","url":"https://insights.sbomify.com/CVE-2023-53824/"}