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

Vulnerability from cvelistv5 – Published: 2025-12-04 16:08 – Updated: 2025-12-20 08:51
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
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": "2025-12-20T08:51:48.872Z",
        "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": "2025-12-20T08:51:48.872Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-40247\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-04T16:16:18.107\",\"lastModified\":\"2025-12-04T17:15:08.283\",\"vulnStatus\":\"Awaiting Analysis\",\"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/\"}],\"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\"}]}}"
  }
}


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  • 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.
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  • 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.



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