{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-39910 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-39910 is a medium-severity denial of service vulnerability in Linux kernel, published on 1 Oct 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-2025-39910 and fix it if it is affected.\n\nWhat it is: CVE-2025-39910 is a medium-severity denial of service vulnerability in Linux kernel, published on 1 Oct 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-2025-39910 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-2025-39910/ (Markdown: https://insights.sbomify.com/CVE-2025-39910/index.md)","id":"CVE-2025-39910","markdown":"https://insights.sbomify.com/CVE-2025-39910/index.md","name":"CVE-2025-39910","record":{"aliases":["BELL-CVE-2025-39910","DEBIAN-CVE-2025-39910","GHSA-xqc4-9x8w-pf49","ROOT-OS-DEBIAN-12-CVE-2025-39910","ROOT-OS-DEBIAN-13-CVE-2025-39910","ROOT-OS-UBUNTU-2404-CVE-2025-39910","UBUNTU-CVE-2025-39910"],"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 bug in the Linux kernel's KASAN vmalloc handling ignores memory allocation flags, potentially causing deadlocks during XFS operations.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"cisa-adp","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-667","name":"Improper Locking"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/vmalloc, mm/kasan: respect gfp mask in kasan_populate_vmalloc()\n\nkasan_populate_vmalloc() and its helpers ignore the caller's gfp_mask and\nalways allocate memory using the hardcoded GFP_KERNEL flag.  This makes\nthem inconsistent with vmalloc(), which was recently extended to support\nGFP_NOFS and GFP_NOIO allocations.\n\nPage table allocations performed during shadow population also ignore the\nexternal gfp_mask.  To preserve the intended semantics of GFP_NOFS and\nGFP_NOIO, wrap the apply_to_page_range() calls into the appropriate\nmemalloc scope.\n\nxfs calls vmalloc with GFP_NOFS, so this bug could lead to deadlock.\n\nThere was a report here\nhttps://lkml.kernel.org/r/686ea951.050a0220.385921.0016.GAE@google.com\n\nThis patch:\n - Extends kasan_populate_vmalloc() and helpers to take gfp_mask;\n - Passes gfp_mask down to alloc_pages_bulk() and __get_free_page();\n - Enforces GFP_NOFS/NOIO semantics with memalloc_*_save()/restore()\n   around apply_to_page_range();\n - Updates vmalloc.c and percpu allocator call sites accordingly.","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":"mm/vmalloc, mm/kasan: respect gfp mask in kasan_populate_vmalloc()","id":"CVE-2025-39910","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2025"},"n_packages":0,"n_references":4,"next":{"headline":"i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path","id":"CVE-2025-39911"},"packages":[],"prev":{"headline":"mm/damon/lru_sort: avoid divide-by-zero in damon_lru_sort_apply_parameters()","id":"CVE-2025-39909"},"products":["Linux"],"published":"2025-10-01","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":"2026-10-21","vendors":["Linux"]},"summary":"A bug in the Linux kernel's KASAN vmalloc handling ignores memory allocation flags, potentially causing deadlocks during XFS operations.","url":"https://insights.sbomify.com/CVE-2025-39910/"}