{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-53831 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53831 is a 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-2023-53831 and fix it if it is affected.\n\nWhat it is: CVE-2023-53831 is a 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-2023-53831 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-2023-53831/ (Markdown: https://insights.sbomify.com/CVE-2023-53831/index.md)","id":"CVE-2023-53831","markdown":"https://insights.sbomify.com/CVE-2023-53831/index.md","name":"CVE-2023-53831","record":{"aliases":["BELL-CVE-2023-53831","DEBIAN-CVE-2023-53831","GHSA-83cq-hc8w-3693","UBUNTU-CVE-2023-53831"],"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 race condition in the Linux kernel's multicast loop handling can cause a kernel warning 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":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: read sk-\u003esk_family once in sk_mc_loop()\n\nsyzbot is playing with IPV6_ADDRFORM quite a lot these days,\nand managed to hit the WARN_ON_ONCE(1) in sk_mc_loop()\n\nWe have many more similar issues to fix.\n\nWARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260\nModules linked in:\nCPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023\nWorkqueue: events_power_efficient gc_worker\nRIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782\nCode: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 eb 13 e8 db 33 1b fd \u003c0f\u003e 0b b3 01 eb 34 e8 d0 33 1b fd 45 31 f6 49 83 c6 38 4c 89 f0 48\nRSP: 0018:ffffc90000388530 EFLAGS: 00010246\nRAX: ffffffff846d9b55 RBX: 0000000000000011 RCX: ffff88814f884980\nRDX: 0000000000000102 RSI: ffffffff87ae5160 RDI: 0000000000000011\nRBP: ffffc90000388550 R08: 0000000000000003 R09: ffffffff846d9a65\nR10: 0000000000000002 R11: ffff88814f884980 R12: dffffc0000000000\nR13: ffff88810dbee000 R14: 0000000000000010 R15: ffff888150084000\nFS: 0000000000000000(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020000180 CR3: 000000014ee5b000 CR4: 00000000003506e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u003cIRQ\u003e\n[\u003cffffffff8507734f\u003e] ip6_finish_output2+0x33f/0x1ae0 net/ipv6/ip6_output.c:83\n[\u003cffffffff85062766\u003e] __ip6_finish_output net/ipv6/ip6_output.c:200 [inline]\n[\u003cffffffff85062766\u003e] ip6_finish_output+0x6c6/0xb10 net/ipv6/ip6_output.c:211\n[\u003cffffffff85061f8c\u003e] NF_HOOK_COND include/linux/netfilter.h:298 [inline]\n[\u003cffffffff85061f8c\u003e] ip6_output+0x2bc/0x3d0 net/ipv6/ip6_output.c:232\n[\u003cffffffff852071cf\u003e] dst_output include/net/dst.h:444 [inline]\n[\u003cffffffff852071cf\u003e] ip6_local_out+0x10f/0x140 net/ipv6/output_core.c:161\n[\u003cffffffff83618fb4\u003e] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:483 [inline]\n[\u003cffffffff83618fb4\u003e] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]\n[\u003cffffffff83618fb4\u003e] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]\n[\u003cffffffff83618fb4\u003e] ipvlan_queue_xmit+0x1174/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677\n[\u003cffffffff8361ddd9\u003e] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229\n[\u003cffffffff84763fc0\u003e] netdev_start_xmit include/linux/netdevice.h:4925 [inline]\n[\u003cffffffff84763fc0\u003e] xmit_one net/core/dev.c:3644 [inline]\n[\u003cffffffff84763fc0\u003e] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660\n[\u003cffffffff8494c650\u003e] sch_direct_xmit+0x2a0/0x9c0 net/sched/sch_generic.c:342\n[\u003cffffffff8494d883\u003e] qdisc_restart net/sched/sch_generic.c:407 [inline]\n[\u003cffffffff8494d883\u003e] __qdisc_run+0xb13/0x1e70 net/sched/sch_generic.c:415\n[\u003cffffffff8478c426\u003e] qdisc_run+0xd6/0x260 include/net/pkt_sched.h:125\n[\u003cffffffff84796eac\u003e] net_tx_action+0x7ac/0x940 net/core/dev.c:5247\n[\u003cffffffff858002bd\u003e] __do_softirq+0x2bd/0x9bd kernel/softirq.c:599\n[\u003cffffffff814c3fe8\u003e] invoke_softirq kernel/softirq.c:430 [inline]\n[\u003cffffffff814c3fe8\u003e] __irq_exit_rcu+0xc8/0x170 kernel/softirq.c:683\n[\u003cffffffff814c3f09\u003e] irq_exit_rcu+0x9/0x20 kernel/softirq.c:695","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":"net: read sk-\u003esk_family once in sk_mc_loop()","id":"CVE-2023-53831","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2023"},"n_packages":0,"n_references":8,"next":{"headline":"md/raid10: fix null-ptr-deref in raid10_sync_request","id":"CVE-2023-53832"},"packages":[],"prev":{"headline":"platform/x86: think-lmi: Fix memory leak when showing current settings","id":"CVE-2023-53830"},"products":["Linux"],"published":"2025-12-09","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A race condition in the Linux kernel's multicast loop handling can cause a kernel warning and potential denial of service.","url":"https://insights.sbomify.com/CVE-2023-53831/"}