{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-40960 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-40960 is a medium-severity vulnerability in Linux kernel, published on 12 Jul 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-2024-40960 and fix it if it is affected.\n\nWhat it is: CVE-2024-40960 is a medium-severity vulnerability in Linux kernel, published on 12 Jul 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-2024-40960 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-2024-40960/ (Markdown: https://insights.sbomify.com/CVE-2024-40960/index.md)","id":"CVE-2024-40960","markdown":"https://insights.sbomify.com/CVE-2024-40960/index.md","name":"CVE-2024-40960","record":{"aliases":["BELL-CVE-2024-40960","DEBIAN-CVE-2024-40960","GHSA-894g-hq68-4qh8","UBUNTU-CVE-2024-40960"],"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 NULL pointer dereference in the Linux kernel IPv6 routing code allows attackers to cause a system crash via crafted network traffic.","user_interaction":"not_required","vuln_class":"null_dereference"},"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":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: prevent possible NULL dereference in rt6_probe()\n\nsyzbot caught a NULL dereference in rt6_probe() [1]\n\nBail out if  __in6_dev_get() returns NULL.\n\n[1]\nOops: general protection fault, probably for non-canonical address 0xdffffc00000000cb: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000658-0x000000000000065f]\nCPU: 1 PID: 22444 Comm: syz-executor.0 Not tainted 6.10.0-rc2-syzkaller-00383-gb8481381d4e2 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024\n RIP: 0010:rt6_probe net/ipv6/route.c:656 [inline]\n RIP: 0010:find_match+0x8c4/0xf50 net/ipv6/route.c:758\nCode: 14 fd f7 48 8b 85 38 ff ff ff 48 c7 45 b0 00 00 00 00 48 8d b8 5c 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 \u003c0f\u003e b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 19\nRSP: 0018:ffffc900034af070 EFLAGS: 00010203\nRAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90004521000\nRDX: 00000000000000cb RSI: ffffffff8990d0cd RDI: 000000000000065c\nRBP: ffffc900034af150 R08: 0000000000000005 R09: 0000000000000000\nR10: 0000000000000001 R11: 0000000000000002 R12: 000000000000000a\nR13: 1ffff92000695e18 R14: ffff8880244a1d20 R15: 0000000000000000\nFS:  00007f4844a5a6c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000001b31b27000 CR3: 000000002d42c000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n  rt6_nh_find_match+0xfa/0x1a0 net/ipv6/route.c:784\n  nexthop_for_each_fib6_nh+0x26d/0x4a0 net/ipv4/nexthop.c:1496\n  __find_rr_leaf+0x6e7/0xe00 net/ipv6/route.c:825\n  find_rr_leaf net/ipv6/route.c:853 [inline]\n  rt6_select net/ipv6/route.c:897 [inline]\n  fib6_table_lookup+0x57e/0xa30 net/ipv6/route.c:2195\n  ip6_pol_route+0x1cd/0x1150 net/ipv6/route.c:2231\n  pol_lookup_func include/net/ip6_fib.h:616 [inline]\n  fib6_rule_lookup+0x386/0x720 net/ipv6/fib6_rules.c:121\n  ip6_route_output_flags_noref net/ipv6/route.c:2639 [inline]\n  ip6_route_output_flags+0x1d0/0x640 net/ipv6/route.c:2651\n  ip6_dst_lookup_tail.constprop.0+0x961/0x1760 net/ipv6/ip6_output.c:1147\n  ip6_dst_lookup_flow+0x99/0x1d0 net/ipv6/ip6_output.c:1250\n  rawv6_sendmsg+0xdab/0x4340 net/ipv6/raw.c:898\n  inet_sendmsg+0x119/0x140 net/ipv4/af_inet.c:853\n  sock_sendmsg_nosec net/socket.c:730 [inline]\n  __sock_sendmsg net/socket.c:745 [inline]\n  sock_write_iter+0x4b8/0x5c0 net/socket.c:1160\n  new_sync_write fs/read_write.c:497 [inline]\n  vfs_write+0x6b6/0x1140 fs/read_write.c:590\n  ksys_write+0x1f8/0x260 fs/read_write.c:643\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f","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":"ipv6: prevent possible NULL dereference in rt6_probe()","id":"CVE-2024-40960","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2024"},"n_packages":0,"n_references":8,"next":{"headline":"ipv6: prevent possible NULL deref in fib6_nh_init()","id":"CVE-2024-40961"},"packages":[],"prev":{"headline":"xfrm6: check ip6_dst_idev() return value in xfrm6_get_saddr()","id":"CVE-2024-40959"},"products":["Linux"],"published":"2024-07-12","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A NULL pointer dereference in the Linux kernel IPv6 routing code allows attackers to cause a system crash via crafted network traffic.","url":"https://insights.sbomify.com/CVE-2024-40960/"}