{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-49952 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-49952 is a high-severity 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-2024-49952 and fix it if it is affected.\n\nWhat it is: CVE-2024-49952 is a high-severity 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-2024-49952 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-2024-49952/ (Markdown: https://insights.sbomify.com/CVE-2024-49952/index.md)","id":"CVE-2024-49952","markdown":"https://insights.sbomify.com/CVE-2024-49952/index.md","name":"CVE-2024-49952","record":{"aliases":["AZL-52613","BELL-CVE-2024-49952","DEBIAN-CVE-2024-49952","GHSA-qm4c-x73m-f8mf","UBUNTU-CVE-2024-49952"],"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 Linux kernel netfilter allows local attackers to corrupt per-CPU variables, potentially causing system crashes.","user_interaction":"not_required","vuln_class":"race_condition"},"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":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: prevent nf_skb_duplicated corruption\n\nsyzbot found that nf_dup_ipv4() or nf_dup_ipv6() could write\nper-cpu variable nf_skb_duplicated in an unsafe way [1].\n\nDisabling preemption as hinted by the splat is not enough,\nwe have to disable soft interrupts as well.\n\n[1]\nBUG: using __this_cpu_write() in preemptible [00000000] code: syz.4.282/6316\n caller is nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87\nCPU: 0 UID: 0 PID: 6316 Comm: syz.4.282 Not tainted 6.11.0-rc7-syzkaller-00104-g7052622fccb1 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\nCall Trace:\n \u003cTASK\u003e\n  __dump_stack lib/dump_stack.c:93 [inline]\n  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\n  check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49\n  nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87\n  nft_dup_ipv4_eval+0x1db/0x300 net/ipv4/netfilter/nft_dup_ipv4.c:30\n  expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n  nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288\n  nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n  nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626\n  nf_hook+0x2c4/0x450 include/linux/netfilter.h:269\n  NF_HOOK_COND include/linux/netfilter.h:302 [inline]\n  ip_output+0x185/0x230 net/ipv4/ip_output.c:433\n  ip_local_out net/ipv4/ip_output.c:129 [inline]\n  ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1495\n  udp_send_skb+0xacf/0x1650 net/ipv4/udp.c:981\n  udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1269\n  sock_sendmsg_nosec net/socket.c:730 [inline]\n  __sock_sendmsg+0x1a6/0x270 net/socket.c:745\n  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597\n  ___sys_sendmsg net/socket.c:2651 [inline]\n  __sys_sendmmsg+0x3b2/0x740 net/socket.c:2737\n  __do_sys_sendmmsg net/socket.c:2766 [inline]\n  __se_sys_sendmmsg net/socket.c:2763 [inline]\n  __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763\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: 0033:0x7f4ce4f7def9\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f4ce5d4a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133\nRAX: ffffffffffffffda RBX: 00007f4ce5135f80 RCX: 00007f4ce4f7def9\nRDX: 0000000000000001 RSI: 0000000020005d40 RDI: 0000000000000006\nRBP: 00007f4ce4ff0b76 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 0000000000000000 R14: 00007f4ce5135f80 R15: 00007ffd4cbc6d68\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":"netfilter: nf_tables: prevent nf_skb_duplicated corruption","id":"CVE-2024-49952","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"race_condition","year":"2024"},"n_packages":0,"n_references":9,"next":{"headline":"net/mlx5e: Fix crash caused by calling __xfrm_state_delete() twice","id":"CVE-2024-49953"},"packages":[],"prev":{"headline":"Bluetooth: MGMT: Fix possible crash on mgmt_index_removed","id":"CVE-2024-49951"},"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 race condition in Linux kernel netfilter allows local attackers to corrupt per-CPU variables, potentially causing system crashes.","url":"https://insights.sbomify.com/CVE-2024-49952/"}