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CVE-2025-39907 (GCVE-0-2025-39907)

Vulnerability from cvelistv5 – Published: 2025-10-01 07:44 – Updated: 2026-05-11 21:38
VLAI
Title
mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer
Summary
In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer Avoid below overlapping mappings by using a contiguous non-cacheable buffer. [ 4.077708] DMA-API: stm32_fmc2_nfc 48810000.nand-controller: cacheline tracking EEXIST, overlapping mappings aren't supported [ 4.089103] WARNING: CPU: 1 PID: 44 at kernel/dma/debug.c:568 add_dma_entry+0x23c/0x300 [ 4.097071] Modules linked in: [ 4.100101] CPU: 1 PID: 44 Comm: kworker/u4:2 Not tainted 6.1.82 #1 [ 4.106346] Hardware name: STMicroelectronics STM32MP257F VALID1 SNOR / MB1704 (LPDDR4 Power discrete) + MB1703 + MB1708 (SNOR MB1730) (DT) [ 4.118824] Workqueue: events_unbound deferred_probe_work_func [ 4.124674] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 4.131624] pc : add_dma_entry+0x23c/0x300 [ 4.135658] lr : add_dma_entry+0x23c/0x300 [ 4.139792] sp : ffff800009dbb490 [ 4.143016] x29: ffff800009dbb4a0 x28: 0000000004008022 x27: ffff8000098a6000 [ 4.150174] x26: 0000000000000000 x25: ffff8000099e7000 x24: ffff8000099e7de8 [ 4.157231] x23: 00000000ffffffff x22: 0000000000000000 x21: ffff8000098a6a20 [ 4.164388] x20: ffff000080964180 x19: ffff800009819ba0 x18: 0000000000000006 [ 4.171545] x17: 6361727420656e69 x16: 6c6568636163203a x15: 72656c6c6f72746e [ 4.178602] x14: 6f632d646e616e2e x13: ffff800009832f58 x12: 00000000000004ec [ 4.185759] x11: 00000000000001a4 x10: ffff80000988af58 x9 : ffff800009832f58 [ 4.192916] x8 : 00000000ffffefff x7 : ffff80000988af58 x6 : 80000000fffff000 [ 4.199972] x5 : 000000000000bff4 x4 : 0000000000000000 x3 : 0000000000000000 [ 4.207128] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000812d2c40 [ 4.214185] Call trace: [ 4.216605] add_dma_entry+0x23c/0x300 [ 4.220338] debug_dma_map_sg+0x198/0x350 [ 4.224373] __dma_map_sg_attrs+0xa0/0x110 [ 4.228411] dma_map_sg_attrs+0x10/0x2c [ 4.232247] stm32_fmc2_nfc_xfer.isra.0+0x1c8/0x3fc [ 4.237088] stm32_fmc2_nfc_seq_read_page+0xc8/0x174 [ 4.242127] nand_read_oob+0x1d4/0x8e0 [ 4.245861] mtd_read_oob_std+0x58/0x84 [ 4.249596] mtd_read_oob+0x90/0x150 [ 4.253231] mtd_read+0x68/0xac
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2cd457f328c100bc98e36d55fe210e9ab067c704 , < dc1c6e60993b93b87604eb11266ac72e1a3be9e0 (git)
Affected: 2cd457f328c100bc98e36d55fe210e9ab067c704 , < dfe2ac47a6ee0ab50393694517c54ef1e276dda3 (git)
Affected: 2cd457f328c100bc98e36d55fe210e9ab067c704 , < e32a2ea52b51368774d014e5bcd9b86110a2b727 (git)
Affected: 2cd457f328c100bc98e36d55fe210e9ab067c704 , < 75686c49574dd5f171ca682c18717787f1d8d55e (git)
Affected: 2cd457f328c100bc98e36d55fe210e9ab067c704 , < 06d8ef8f853752fea88c8d5bb093a40e71b330cf (git)
Affected: 2cd457f328c100bc98e36d55fe210e9ab067c704 , < 26adba1e7d7924174e15a3ba4b1132990786300b (git)
Affected: 2cd457f328c100bc98e36d55fe210e9ab067c704 , < f6fd98d961fa6f97347cead4f08ed862cbbb91ff (git)
Affected: 2cd457f328c100bc98e36d55fe210e9ab067c704 , < 513c40e59d5a414ab763a9c84797534b5e8c208d (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.1
Unaffected: 0 , < 5.1 (semver)
Unaffected: 5.4.300 , ≤ 5.4.* (semver)
Unaffected: 5.10.245 , ≤ 5.10.* (semver)
Unaffected: 5.15.194 , ≤ 5.15.* (semver)
Unaffected: 6.1.153 , ≤ 6.1.* (semver)
Unaffected: 6.6.107 , ≤ 6.6.* (semver)
Unaffected: 6.12.48 , ≤ 6.12.* (semver)
Unaffected: 6.16.8 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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                    "vulnerable": true
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                ],
                "negate": false,
                "operator": "OR"
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            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "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\u0027t 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"
          }
        ],
        "id": "CVE-2025-39907",
        "lastModified": "2026-06-17T09:18:48.073",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-10-01T08:15:33.603",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/06d8ef8f853752fea88c8d5bb093a40e71b330cf"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
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          },
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            "tags": [
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            "tags": [
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          },
          {
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            "tags": [
              "Patch"
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            "url": "https://git.kernel.org/stable/c/f6fd98d961fa6f97347cead4f08ed862cbbb91ff"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:22:33+00:00",
      "cve": "CVE-2025-39907",
      "id": "CVE-2025-39907",
      "initial_release_date": "2025-10-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-39907.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-28T16:57:15Z",
      "cve": "CVE-2025-39907",
      "id": "CVE-2025-39907",
      "initial_release_date": "2025-10-01T23:23:07Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "387",
      "product_status:recommended": "464",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-39907",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-39907.json",
      "version": "46"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.