{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-37960 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-37960 is a medium-severity vulnerability in Linux kernel, published on 20 May 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-2025-37960 and fix it if it is affected.\n\nWhat it is: CVE-2025-37960 is a medium-severity vulnerability in Linux kernel, published on 20 May 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-2025-37960 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-2025-37960/ (Markdown: https://insights.sbomify.com/CVE-2025-37960/index.md)","id":"CVE-2025-37960","markdown":"https://insights.sbomify.com/CVE-2025-37960/index.md","name":"CVE-2025-37960","record":{"aliases":["BELL-CVE-2025-37960","DEBIAN-CVE-2025-37960","GHSA-h279-pjhh-9hgj","ROOT-OS-UBUNTU-2404-CVE-2025-37960","UBUNTU-CVE-2025-37960"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A Linux kernel bug causes a crash during boot in SNP guests if memory is not accepted before use, requiring a patch to fix.","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\nmemblock: Accept allocated memory before use in memblock_double_array()\n\nWhen increasing the array size in memblock_double_array() and the slab\nis not yet available, a call to memblock_find_in_range() is used to\nreserve/allocate memory. However, the range returned may not have been\naccepted, which can result in a crash when booting an SNP guest:\n\n  RIP: 0010:memcpy_orig+0x68/0x130\n  Code: ...\n  RSP: 0000:ffffffff9cc03ce8 EFLAGS: 00010006\n  RAX: ff11001ff83e5000 RBX: 0000000000000000 RCX: fffffffffffff000\n  RDX: 0000000000000bc0 RSI: ffffffff9dba8860 RDI: ff11001ff83e5c00\n  RBP: 0000000000002000 R08: 0000000000000000 R09: 0000000000002000\n  R10: 000000207fffe000 R11: 0000040000000000 R12: ffffffff9d06ef78\n  R13: ff11001ff83e5000 R14: ffffffff9dba7c60 R15: 0000000000000c00\n  memblock_double_array+0xff/0x310\n  memblock_add_range+0x1fb/0x2f0\n  memblock_reserve+0x4f/0xa0\n  memblock_alloc_range_nid+0xac/0x130\n  memblock_alloc_internal+0x53/0xc0\n  memblock_alloc_try_nid+0x3d/0xa0\n  swiotlb_init_remap+0x149/0x2f0\n  mem_init+0xb/0xb0\n  mm_core_init+0x8f/0x350\n  start_kernel+0x17e/0x5d0\n  x86_64_start_reservations+0x14/0x30\n  x86_64_start_kernel+0x92/0xa0\n  secondary_startup_64_no_verify+0x194/0x19b\n\nMitigate this by calling accept_memory() on the memory range returned\nbefore the slab is available.\n\nPrior to v6.12, the accept_memory() interface used a 'start' and 'end'\nparameter instead of 'start' and 'size', therefore the accept_memory()\ncall must be adjusted to specify 'start + size' for 'end' when applying\nto kernels prior to v6.12.","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":"memblock: Accept allocated memory before use in memblock_double_array()","id":"CVE-2025-37960","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":4,"next":{"headline":"ipvs: fix uninit-value for saddr in do_output_route4","id":"CVE-2025-37961"},"packages":[],"prev":{"headline":"bpf: Scrub packet on bpf_redirect_peer","id":"CVE-2025-37959"},"products":["Linux"],"published":"2025-05-20","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 Linux kernel bug causes a crash during boot in SNP guests if memory is not accepted before use, requiring a patch to fix.","url":"https://insights.sbomify.com/CVE-2025-37960/"}