{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-38032 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-38032 is a medium-severity vulnerability in Linux kernel, published on 18 Jun 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-2025-38032 and fix it if it is affected.\n\nWhat it is: CVE-2025-38032 is a medium-severity vulnerability in Linux kernel, published on 18 Jun 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-2025-38032 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-2025-38032/ (Markdown: https://insights.sbomify.com/CVE-2025-38032/index.md)","id":"CVE-2025-38032","markdown":"https://insights.sbomify.com/CVE-2025-38032/index.md","name":"CVE-2025-38032","record":{"aliases":["BELL-CVE-2025-38032","GHSA-6p5g-pg67-9qvf","UBUNTU-CVE-2025-38032"],"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's IP multicast routing cleanup path can cause a system crash, requiring a kernel patch.","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":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmr: consolidate the ipmr_can_free_table() checks.\n\nGuoyu Yin reported a splat in the ipmr netns cleanup path:\n\nWARNING: CPU: 2 PID: 14564 at net/ipv4/ipmr.c:440 ipmr_free_table net/ipv4/ipmr.c:440 [inline]\nWARNING: CPU: 2 PID: 14564 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x135/0x1c0 net/ipv4/ipmr.c:361\nModules linked in:\nCPU: 2 UID: 0 PID: 14564 Comm: syz.4.838 Not tainted 6.14.0 #1\nHardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nRIP: 0010:ipmr_free_table net/ipv4/ipmr.c:440 [inline]\nRIP: 0010:ipmr_rules_exit+0x135/0x1c0 net/ipv4/ipmr.c:361\nCode: ff df 48 c1 ea 03 80 3c 02 00 75 7d 48 c7 83 60 05 00 00 00 00 00 00 5b 5d 41 5c 41 5d 41 5e e9 71 67 7f 00 e8 4c 2d 8a fd 90 \u003c0f\u003e 0b 90 eb 93 e8 41 2d 8a fd 0f b6 2d 80 54 ea 01 31 ff 89 ee e8\nRSP: 0018:ffff888109547c58 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: ffff888108c12dc0 RCX: ffffffff83e09868\nRDX: ffff8881022b3300 RSI: ffffffff83e098d4 RDI: 0000000000000005\nRBP: ffff888104288000 R08: 0000000000000000 R09: ffffed10211825c9\nR10: 0000000000000001 R11: ffff88801816c4a0 R12: 0000000000000001\nR13: ffff888108c13320 R14: ffff888108c12dc0 R15: fffffbfff0b74058\nFS:  00007f84f39316c0(0000) GS:ffff88811b100000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f84f3930f98 CR3: 0000000113b56000 CR4: 0000000000350ef0\nCall Trace:\n \u003cTASK\u003e\n ipmr_net_exit_batch+0x50/0x90 net/ipv4/ipmr.c:3160\n ops_exit_list+0x10c/0x160 net/core/net_namespace.c:177\n setup_net+0x47d/0x8e0 net/core/net_namespace.c:394\n copy_net_ns+0x25d/0x410 net/core/net_namespace.c:516\n create_new_namespaces+0x3f6/0xaf0 kernel/nsproxy.c:110\n unshare_nsproxy_namespaces+0xc3/0x180 kernel/nsproxy.c:228\n ksys_unshare+0x78d/0x9a0 kernel/fork.c:3342\n __do_sys_unshare kernel/fork.c:3413 [inline]\n __se_sys_unshare kernel/fork.c:3411 [inline]\n __x64_sys_unshare+0x31/0x40 kernel/fork.c:3411\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xa6/0x1a0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f84f532cc29\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:00007f84f3931038 EFLAGS: 00000246 ORIG_RAX: 0000000000000110\nRAX: ffffffffffffffda RBX: 00007f84f5615fa0 RCX: 00007f84f532cc29\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000400\nRBP: 00007f84f53fba18 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 0000000000000000 R14: 00007f84f5615fa0 R15: 00007fff51c5f328\n \u003c/TASK\u003e\n\nThe running kernel has CONFIG_IP_MROUTE_MULTIPLE_TABLES disabled, and\nthe sanity check for such build is still too loose.\n\nAddress the issue consolidating the relevant sanity check in a single\nhelper regardless of the kernel configuration. Also share it between\nthe ipv4 and ipv6 code.","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":"mr: consolidate the ipmr_can_free_table() checks.","id":"CVE-2025-38032","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":2,"next":{"headline":"x86/Kconfig: make CFI_AUTO_DEFAULT depend on !RUST or Rust \u003e= 1.88","id":"CVE-2025-38033"},"packages":[],"prev":{"headline":"padata: do not leak refcount in reorder_work","id":"CVE-2025-38031"},"products":["Linux"],"published":"2025-06-18","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A null pointer dereference in the Linux kernel's IP multicast routing cleanup path can cause a system crash, requiring a kernel patch.","url":"https://insights.sbomify.com/CVE-2025-38032/"}