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CVE-2025-40247 (GCVE-0-2025-40247)

Vulnerability from cvelistv5 – Published: 2025-12-04 16:08 – Updated: 2026-05-11 21:45
VLAI
Title
drm/msm: Fix pgtable prealloc error path
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix pgtable prealloc error path The following splat was reported: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=00000008d0fd8000 [0000000000000010] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000096000004 [#1] SMP CPU: 5 UID: 1000 PID: 149076 Comm: Xwayland Tainted: G S 6.16.0-rc2-00809-g0b6974bb4134-dirty #367 PREEMPT Tainted: [S]=CPU_OUT_OF_SPEC Hardware name: Qualcomm Technologies, Inc. SM8650 HDK (DT) pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : build_detached_freelist+0x28/0x224 lr : kmem_cache_free_bulk.part.0+0x38/0x244 sp : ffff000a508c7a20 x29: ffff000a508c7a20 x28: ffff000a508c7d50 x27: ffffc4e49d16f350 x26: 0000000000000058 x25: 00000000fffffffc x24: 0000000000000000 x23: ffff00098c4e1450 x22: 00000000fffffffc x21: 0000000000000000 x20: ffff000a508c7af8 x19: 0000000000000002 x18: 00000000000003e8 x17: ffff000809523850 x16: ffff000809523820 x15: 0000000000401640 x14: ffff000809371140 x13: 0000000000000130 x12: ffff0008b5711e30 x11: 00000000001058fa x10: 0000000000000a80 x9 : ffff000a508c7940 x8 : ffff000809371ba0 x7 : 781fffe033087fff x6 : 0000000000000000 x5 : ffff0008003cd000 x4 : 781fffe033083fff x3 : ffff000a508c7af8 x2 : fffffdffc0000000 x1 : 0001000000000000 x0 : ffff0008001a6a00 Call trace: build_detached_freelist+0x28/0x224 (P) kmem_cache_free_bulk.part.0+0x38/0x244 kmem_cache_free_bulk+0x10/0x1c msm_iommu_pagetable_prealloc_cleanup+0x3c/0xd0 msm_vma_job_free+0x30/0x240 msm_ioctl_vm_bind+0x1d0/0x9a0 drm_ioctl_kernel+0x84/0x104 drm_ioctl+0x358/0x4d4 __arm64_sys_ioctl+0x8c/0xe0 invoke_syscall+0x44/0x100 el0_svc_common.constprop.0+0x3c/0xe0 do_el0_svc+0x18/0x20 el0_svc+0x30/0x100 el0t_64_sync_handler+0x104/0x130 el0t_64_sync+0x170/0x174 Code: aa0203f5 b26287e2 f2dfbfe2 aa0303f4 (f8737ab6) ---[ end trace 0000000000000000 ]--- Since msm_vma_job_free() is called directly from the ioctl, this looks like an error path cleanup issue. Which I think results from prealloc_cleanup() called without a preceding successful prealloc_allocate() call. So handle that case better. Patchwork: https://patchwork.freedesktop.org/patch/678677/
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0cf6c71d70d8aa39b8fd0e39c9009602a0e0d300 , < b865da18b6cb878f33b5920693d03f23b9c4d1a3 (git)
Affected: 0cf6c71d70d8aa39b8fd0e39c9009602a0e0d300 , < 830d68f2cb8ab6fb798bb9555016709a9e012af0 (git)
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Linux Linux Affected: 3.12
Unaffected: 0 , < 3.12 (semver)
Unaffected: 6.17.10 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/msm_iommu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b865da18b6cb878f33b5920693d03f23b9c4d1a3",
              "status": "affected",
              "version": "0cf6c71d70d8aa39b8fd0e39c9009602a0e0d300",
              "versionType": "git"
            },
            {
              "lessThan": "830d68f2cb8ab6fb798bb9555016709a9e012af0",
              "status": "affected",
              "version": "0cf6c71d70d8aa39b8fd0e39c9009602a0e0d300",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/msm_iommu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.12"
            },
            {
              "lessThan": "3.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.10",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm: Fix pgtable prealloc error path\n\nThe following splat was reported:\n\n    Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010\n    Mem abort info:\n      ESR = 0x0000000096000004\n      EC = 0x25: DABT (current EL), IL = 32 bits\n      SET = 0, FnV = 0\n      EA = 0, S1PTW = 0\n      FSC = 0x04: level 0 translation fault\n    Data abort info:\n      ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\n      CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n      GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n    user pgtable: 4k pages, 48-bit VAs, pgdp=00000008d0fd8000\n    [0000000000000010] pgd=0000000000000000, p4d=0000000000000000\n    Internal error: Oops: 0000000096000004 [#1]  SMP\n    CPU: 5 UID: 1000 PID: 149076 Comm: Xwayland Tainted: G S                  6.16.0-rc2-00809-g0b6974bb4134-dirty #367 PREEMPT\n    Tainted: [S]=CPU_OUT_OF_SPEC\n    Hardware name: Qualcomm Technologies, Inc. SM8650 HDK (DT)\n    pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\n    pc : build_detached_freelist+0x28/0x224\n    lr : kmem_cache_free_bulk.part.0+0x38/0x244\n    sp : ffff000a508c7a20\n    x29: ffff000a508c7a20 x28: ffff000a508c7d50 x27: ffffc4e49d16f350\n    x26: 0000000000000058 x25: 00000000fffffffc x24: 0000000000000000\n    x23: ffff00098c4e1450 x22: 00000000fffffffc x21: 0000000000000000\n    x20: ffff000a508c7af8 x19: 0000000000000002 x18: 00000000000003e8\n    x17: ffff000809523850 x16: ffff000809523820 x15: 0000000000401640\n    x14: ffff000809371140 x13: 0000000000000130 x12: ffff0008b5711e30\n    x11: 00000000001058fa x10: 0000000000000a80 x9 : ffff000a508c7940\n    x8 : ffff000809371ba0 x7 : 781fffe033087fff x6 : 0000000000000000\n    x5 : ffff0008003cd000 x4 : 781fffe033083fff x3 : ffff000a508c7af8\n    x2 : fffffdffc0000000 x1 : 0001000000000000 x0 : ffff0008001a6a00\n    Call trace:\n     build_detached_freelist+0x28/0x224 (P)\n     kmem_cache_free_bulk.part.0+0x38/0x244\n     kmem_cache_free_bulk+0x10/0x1c\n     msm_iommu_pagetable_prealloc_cleanup+0x3c/0xd0\n     msm_vma_job_free+0x30/0x240\n     msm_ioctl_vm_bind+0x1d0/0x9a0\n     drm_ioctl_kernel+0x84/0x104\n     drm_ioctl+0x358/0x4d4\n     __arm64_sys_ioctl+0x8c/0xe0\n     invoke_syscall+0x44/0x100\n     el0_svc_common.constprop.0+0x3c/0xe0\n     do_el0_svc+0x18/0x20\n     el0_svc+0x30/0x100\n     el0t_64_sync_handler+0x104/0x130\n     el0t_64_sync+0x170/0x174\n    Code: aa0203f5 b26287e2 f2dfbfe2 aa0303f4 (f8737ab6)\n    ---[ end trace 0000000000000000 ]---\n\nSince msm_vma_job_free() is called directly from the ioctl, this looks\nlike an error path cleanup issue.  Which I think results from\nprealloc_cleanup() called without a preceding successful\nprealloc_allocate() call.  So handle that case better.\n\nPatchwork: https://patchwork.freedesktop.org/patch/678677/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:45:38.393Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b865da18b6cb878f33b5920693d03f23b9c4d1a3"
        },
        {
          "url": "https://git.kernel.org/stable/c/830d68f2cb8ab6fb798bb9555016709a9e012af0"
        }
      ],
      "title": "drm/msm: Fix pgtable prealloc error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40247",
    "datePublished": "2025-12-04T16:08:10.696Z",
    "dateReserved": "2025-04-16T07:20:57.181Z",
    "dateUpdated": "2026-05-11T21:45:38.393Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-40247",
      "date": "2026-09-16",
      "epss": "0.00186",
      "percentile": "0.08484"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-40247\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-04T16:16:18.107\",\"lastModified\":\"2026-06-17T09:21:31.477\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/msm: Fix pgtable prealloc error path\\n\\nThe following splat was reported:\\n\\n    Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010\\n    Mem abort info:\\n      ESR = 0x0000000096000004\\n      EC = 0x25: DABT (current EL), IL = 32 bits\\n      SET = 0, FnV = 0\\n      EA = 0, S1PTW = 0\\n      FSC = 0x04: level 0 translation fault\\n    Data abort info:\\n      ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\\n      CM = 0, WnR = 0, TnD = 0, TagAccess = 0\\n      GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\\n    user pgtable: 4k pages, 48-bit VAs, pgdp=00000008d0fd8000\\n    [0000000000000010] pgd=0000000000000000, p4d=0000000000000000\\n    Internal error: Oops: 0000000096000004 [#1]  SMP\\n    CPU: 5 UID: 1000 PID: 149076 Comm: Xwayland Tainted: G S                  6.16.0-rc2-00809-g0b6974bb4134-dirty #367 PREEMPT\\n    Tainted: [S]=CPU_OUT_OF_SPEC\\n    Hardware name: Qualcomm Technologies, Inc. SM8650 HDK (DT)\\n    pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\\n    pc : build_detached_freelist+0x28/0x224\\n    lr : kmem_cache_free_bulk.part.0+0x38/0x244\\n    sp : ffff000a508c7a20\\n    x29: ffff000a508c7a20 x28: ffff000a508c7d50 x27: ffffc4e49d16f350\\n    x26: 0000000000000058 x25: 00000000fffffffc x24: 0000000000000000\\n    x23: ffff00098c4e1450 x22: 00000000fffffffc x21: 0000000000000000\\n    x20: ffff000a508c7af8 x19: 0000000000000002 x18: 00000000000003e8\\n    x17: ffff000809523850 x16: ffff000809523820 x15: 0000000000401640\\n    x14: ffff000809371140 x13: 0000000000000130 x12: ffff0008b5711e30\\n    x11: 00000000001058fa x10: 0000000000000a80 x9 : ffff000a508c7940\\n    x8 : ffff000809371ba0 x7 : 781fffe033087fff x6 : 0000000000000000\\n    x5 : ffff0008003cd000 x4 : 781fffe033083fff x3 : ffff000a508c7af8\\n    x2 : fffffdffc0000000 x1 : 0001000000000000 x0 : ffff0008001a6a00\\n    Call trace:\\n     build_detached_freelist+0x28/0x224 (P)\\n     kmem_cache_free_bulk.part.0+0x38/0x244\\n     kmem_cache_free_bulk+0x10/0x1c\\n     msm_iommu_pagetable_prealloc_cleanup+0x3c/0xd0\\n     msm_vma_job_free+0x30/0x240\\n     msm_ioctl_vm_bind+0x1d0/0x9a0\\n     drm_ioctl_kernel+0x84/0x104\\n     drm_ioctl+0x358/0x4d4\\n     __arm64_sys_ioctl+0x8c/0xe0\\n     invoke_syscall+0x44/0x100\\n     el0_svc_common.constprop.0+0x3c/0xe0\\n     do_el0_svc+0x18/0x20\\n     el0_svc+0x30/0x100\\n     el0t_64_sync_handler+0x104/0x130\\n     el0t_64_sync+0x170/0x174\\n    Code: aa0203f5 b26287e2 f2dfbfe2 aa0303f4 (f8737ab6)\\n    ---[ end trace 0000000000000000 ]---\\n\\nSince msm_vma_job_free() is called directly from the ioctl, this looks\\nlike an error path cleanup issue.  Which I think results from\\nprealloc_cleanup() called without a preceding successful\\nprealloc_allocate() call.  So handle that case better.\\n\\nPatchwork: https://patchwork.freedesktop.org/patch/678677/\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/gpu/drm/msm/msm_iommu.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"0cf6c71d70d8aa39b8fd0e39c9009602a0e0d300\",\"lessThan\":\"b865da18b6cb878f33b5920693d03f23b9c4d1a3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0cf6c71d70d8aa39b8fd0e39c9009602a0e0d300\",\"lessThan\":\"830d68f2cb8ab6fb798bb9555016709a9e012af0\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/gpu/drm/msm/msm_iommu.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.17.10\",\"lessThanOrEqual\":\"6.17.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/830d68f2cb8ab6fb798bb9555016709a9e012af0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b865da18b6cb878f33b5920693d03f23b9c4d1a3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:15:37+00:00",
      "cve": "CVE-2025-40247",
      "id": "CVE-2025-40247",
      "initial_release_date": "2025-12-04T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/msm: Fix pgtable prealloc error path",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40247.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-03T00:12:58Z",
      "cve": "CVE-2025-40247",
      "id": "CVE-2025-40247",
      "initial_release_date": "2025-12-05T00:25:34Z",
      "product_status:known_not_affected": "525",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-40247",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-40247.json",
      "version": "10"
    }
  }
}



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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

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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.