{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2025-39907 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-39907 is a medium-severity memory corruption vulnerability in Debian Debian Linux, 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-2025-39907 and fix it if it is affected.\n\nWhat it is: CVE-2025-39907 is a medium-severity memory corruption vulnerability in Debian Debian Linux, 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-2025-39907 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2025-39907/ (Markdown: https://insights.sbomify.com/CVE-2025-39907/index.md)","id":"CVE-2025-39907","markdown":"https://insights.sbomify.com/CVE-2025-39907/index.md","name":"CVE-2025-39907","record":{"aliases":["BELL-CVE-2025-39907","DEBIAN-CVE-2025-39907","GHSA-mrx7-jvx3-fwv3","ROOT-OS-DEBIAN-11-CVE-2025-39907","ROOT-OS-UBUNTU-2204-CVE-2025-39907","ROOT-OS-UBUNTU-2404-CVE-2025-39907","UBUNTU-CVE-2025-39907"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel NAND driver","requires_auth":"low_privilege","summary":"A memory corruption issue in the STM32 FMC2 NAND driver causes overlapping DMA mappings, leading to kernel warnings and potential system instability.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"debian_linux","vendor":"debian"},{"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\nmtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer\n\nAvoid below overlapping mappings by using a contiguous\nnon-cacheable buffer.\n\n[    4.077708] DMA-API: stm32_fmc2_nfc 48810000.nand-controller: cacheline tracking EEXIST,\noverlapping mappings aren't supported\n[    4.089103] WARNING: CPU: 1 PID: 44 at kernel/dma/debug.c:568 add_dma_entry+0x23c/0x300\n[    4.097071] Modules linked in:\n[    4.100101] CPU: 1 PID: 44 Comm: kworker/u4:2 Not tainted 6.1.82 #1\n[    4.106346] Hardware name: STMicroelectronics STM32MP257F VALID1 SNOR / MB1704 (LPDDR4 Power discrete) + MB1703 + MB1708 (SNOR MB1730) (DT)\n[    4.118824] Workqueue: events_unbound deferred_probe_work_func\n[    4.124674] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[    4.131624] pc : add_dma_entry+0x23c/0x300\n[    4.135658] lr : add_dma_entry+0x23c/0x300\n[    4.139792] sp : ffff800009dbb490\n[    4.143016] x29: ffff800009dbb4a0 x28: 0000000004008022 x27: ffff8000098a6000\n[    4.150174] x26: 0000000000000000 x25: ffff8000099e7000 x24: ffff8000099e7de8\n[    4.157231] x23: 00000000ffffffff x22: 0000000000000000 x21: ffff8000098a6a20\n[    4.164388] x20: ffff000080964180 x19: ffff800009819ba0 x18: 0000000000000006\n[    4.171545] x17: 6361727420656e69 x16: 6c6568636163203a x15: 72656c6c6f72746e\n[    4.178602] x14: 6f632d646e616e2e x13: ffff800009832f58 x12: 00000000000004ec\n[    4.185759] x11: 00000000000001a4 x10: ffff80000988af58 x9 : ffff800009832f58\n[    4.192916] x8 : 00000000ffffefff x7 : ffff80000988af58 x6 : 80000000fffff000\n[    4.199972] x5 : 000000000000bff4 x4 : 0000000000000000 x3 : 0000000000000000\n[    4.207128] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000812d2c40\n[    4.214185] Call trace:\n[    4.216605]  add_dma_entry+0x23c/0x300\n[    4.220338]  debug_dma_map_sg+0x198/0x350\n[    4.224373]  __dma_map_sg_attrs+0xa0/0x110\n[    4.228411]  dma_map_sg_attrs+0x10/0x2c\n[    4.232247]  stm32_fmc2_nfc_xfer.isra.0+0x1c8/0x3fc\n[    4.237088]  stm32_fmc2_nfc_seq_read_page+0xc8/0x174\n[    4.242127]  nand_read_oob+0x1d4/0x8e0\n[    4.245861]  mtd_read_oob_std+0x58/0x84\n[    4.249596]  mtd_read_oob+0x90/0x150\n[    4.253231]  mtd_read+0x68/0xac","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":"mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer","id":"CVE-2025-39907","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","linux:linux_kernel"],"type":"memory_corruption","year":"2025"},"n_packages":0,"n_references":8,"next":{"headline":"net: dev_ioctl: take ops lock in hwtstamp lower paths","id":"CVE-2025-39908"},"packages":[],"prev":{"headline":"drm/amd/display: remove oem i2c adapter on finish","id":"CVE-2025-39906"},"products":["Linux"],"published":"2025-10-01","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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 memory corruption issue in the STM32 FMC2 NAND driver causes overlapping DMA mappings, leading to kernel warnings and potential system instability.","url":"https://insights.sbomify.com/CVE-2025-39907/"}