CVE-2026-89815 (GCVE-0-2026-89815)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:30 – Updated: 2026-09-21 13:15
VLAI
Title
drm/ttm: Drop tt->restore after successful restore
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Drop tt->restore after successful restore ttm_pool_restore_and_alloc() can successfully complete the restore process via ttm_pool_restore_commit(), but tt->restore is not dropped afterward. As a result, subsequent backup/restore flows observe what appears to be a completed restore, while in reality shmem handles are still installed in tt->pages, leading to the stack trace below. Fix this by freeing and dropping tt->restore in ttm_pool_restore_and_alloc() upon successful completion of the restore. 20545 [  309.784531] RIP: 0010:sg_alloc_append_table_from_pages+0x38c/0x490 20547 [  309.809570] RSP: 0018:ffffc9000623b838 EFLAGS: 00010206 20548 [  309.814827] RAX: 0000000000001000 RBX: ffff88816e42a160 RCX: 0000000000000000 20549 [  309.821986] RDX: 0000000000002000 RSI: 0000000000000003 RDI: 0000000000001000 20550 [  309.829147] RBP: ffff88816e42a168 R08: 0000000000000002 R09: 000000007ffff000 20551 [  309.836310] R10: ffffc9000623b928 R11: 0000000000000000 R12: 000000007ffff000 20552 [  309.843471] R13: ffff88815ba5a100 R14: 0000000000000000 R15: 0000000000000001 20553 [  309.850634] FS:  00007f9ff305e700(0000) GS:ffff888276c94000(0000) knlGS:0000000000000000 20554 [  309.858749] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 20555 [  309.864519] CR2: 00007f9fca701000 CR3: 00000001565e2005 CR4: 0000000008f70ef0 20556 [  309.871678] PKRU: 55555558 20557 [  309.874403] Call Trace: 20558 [  309.876866]  <TASK> 20559 [  309.878988]  sg_alloc_table_from_pages_segment+0x60/0x100 20560 [  309.884415]  ? ttm_resource_manager_usage+0x36/0x60 [ttm] 20561 [  309.889845]  ? xe_tt_map_sg+0x7d/0xd0 [xe] 20562 [  309.894045]  xe_tt_map_sg+0x7d/0xd0 [xe] 20563 [  309.898037]  xe_bo_move+0x927/0xaa0 [xe] 20564 [  309.902029]  ttm_bo_handle_move_mem+0xba/0x170 [ttm] 20565 [  309.907022]  ttm_bo_validate+0xbe/0x190 [ttm] 20566 [  309.911405]  xe_bo_validate+0x9a/0x120 [xe] 20567 [  309.915663]  xe_gpuvm_validate+0xd9/0x140 [xe] 20568 [  309.920206]  drm_gpuvm_validate+0x2f0/0x5b0 [drm_gpuvm] 20569 [  309.925459]  ? drm_exec_lock_obj+0x63/0x210 [drm_exec] 20570 [  309.930627]  xe_vm_validate_rebind+0x46/0xb0 [xe] 20571 [  309.935428]  xe_exec_fn+0x20/0x40 [xe] 20572 [  309.939249]  drm_gpuvm_exec_lock+0x78/0xc0 [drm_gpuvm] 20573 [  309.944410]  xe_validation_exec_lock+0x5a/0xa0 [xe] 20574 [  309.949385]  xe_exec_ioctl+0x806/0xc30 [xe] 20575 [  309.953639]  ? ttwu_queue_wakelist+0xd9/0xf0 20576 [  309.957935]  ? __pfx_xe_exec_fn+0x10/0x10 [xe] 20577 [  309.962449]  ? __wake_up_common+0x73/0xa0 20578 [  309.966482]  ? __pfx_xe_exec_ioctl+0x10/0x10 [xe] 20579 [  309.971263]  drm_ioctl_kernel+0xa3/0x100 20580 [  309.975209]  drm_ioctl+0x213/0x440 20581 [  309.978637]  ? __pfx_xe_exec_ioctl+0x10/0x10 [xe] 20582 [  309.983415]  xe_drm_ioctl+0x67/0xd0 [xe] 20583 [  309.987408]  __x64_sys_ioctl+0x7f/0xd0
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b63d715b8090aed48bdef5930625946fa4c0d324 , < 329ddc5d438f991f49e4fd24c704d1c7288d5e03 (git)
Affected: b63d715b8090aed48bdef5930625946fa4c0d324 , < a46ab76b6cf5478e2ac7b942a377c7a1827b436a (git)
Affected: b63d715b8090aed48bdef5930625946fa4c0d324 , < 941ac10529b3be5965a88d432a161ab459672ba8 (git)
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Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2.5 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/ttm/ttm_pool.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "329ddc5d438f991f49e4fd24c704d1c7288d5e03",
              "status": "affected",
              "version": "b63d715b8090aed48bdef5930625946fa4c0d324",
              "versionType": "git"
            },
            {
              "lessThan": "a46ab76b6cf5478e2ac7b942a377c7a1827b436a",
              "status": "affected",
              "version": "b63d715b8090aed48bdef5930625946fa4c0d324",
              "versionType": "git"
            },
            {
              "lessThan": "941ac10529b3be5965a88d432a161ab459672ba8",
              "status": "affected",
              "version": "b63d715b8090aed48bdef5930625946fa4c0d324",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/ttm/ttm_pool.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.53",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.5",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: Drop tt-\u003erestore after successful restore\n\nttm_pool_restore_and_alloc() can successfully complete the restore\nprocess via ttm_pool_restore_commit(), but tt-\u003erestore is not dropped\nafterward. As a result, subsequent backup/restore flows observe what\nappears to be a completed restore, while in reality shmem handles are\nstill installed in tt-\u003epages, leading to the stack trace below.\n\nFix this by freeing and dropping tt-\u003erestore in\nttm_pool_restore_and_alloc() upon successful completion of the restore.\n\n20545 [\u00a0 309.784531] RIP: 0010:sg_alloc_append_table_from_pages+0x38c/0x490\n20547 [\u00a0 309.809570] RSP: 0018:ffffc9000623b838 EFLAGS: 00010206\n20548 [\u00a0 309.814827] RAX: 0000000000001000 RBX: ffff88816e42a160 RCX: 0000000000000000\n20549 [\u00a0 309.821986] RDX: 0000000000002000 RSI: 0000000000000003 RDI: 0000000000001000\n20550 [\u00a0 309.829147] RBP: ffff88816e42a168 R08: 0000000000000002 R09: 000000007ffff000\n20551 [\u00a0 309.836310] R10: ffffc9000623b928 R11: 0000000000000000 R12: 000000007ffff000\n20552 [\u00a0 309.843471] R13: ffff88815ba5a100 R14: 0000000000000000 R15: 0000000000000001\n20553 [\u00a0 309.850634] FS:\u00a0 00007f9ff305e700(0000) GS:ffff888276c94000(0000) knlGS:0000000000000000\n20554 [\u00a0 309.858749] CS:\u00a0 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n20555 [\u00a0 309.864519] CR2: 00007f9fca701000 CR3: 00000001565e2005 CR4: 0000000008f70ef0\n20556 [\u00a0 309.871678] PKRU: 55555558\n20557 [\u00a0 309.874403] Call Trace:\n20558 [\u00a0 309.876866]\u00a0 \u003cTASK\u003e\n20559 [\u00a0 309.878988]\u00a0 sg_alloc_table_from_pages_segment+0x60/0x100\n20560 [\u00a0 309.884415]\u00a0 ? ttm_resource_manager_usage+0x36/0x60 [ttm]\n20561 [\u00a0 309.889845]\u00a0 ? xe_tt_map_sg+0x7d/0xd0 [xe]\n20562 [\u00a0 309.894045]\u00a0 xe_tt_map_sg+0x7d/0xd0 [xe]\n20563 [\u00a0 309.898037]\u00a0 xe_bo_move+0x927/0xaa0 [xe]\n20564 [\u00a0 309.902029]\u00a0 ttm_bo_handle_move_mem+0xba/0x170 [ttm]\n20565 [\u00a0 309.907022]\u00a0 ttm_bo_validate+0xbe/0x190 [ttm]\n20566 [\u00a0 309.911405]\u00a0 xe_bo_validate+0x9a/0x120 [xe]\n20567 [\u00a0 309.915663]\u00a0 xe_gpuvm_validate+0xd9/0x140 [xe]\n20568 [\u00a0 309.920206]\u00a0 drm_gpuvm_validate+0x2f0/0x5b0 [drm_gpuvm]\n20569 [\u00a0 309.925459]\u00a0 ? drm_exec_lock_obj+0x63/0x210 [drm_exec]\n20570 [\u00a0 309.930627]\u00a0 xe_vm_validate_rebind+0x46/0xb0 [xe]\n20571 [\u00a0 309.935428]\u00a0 xe_exec_fn+0x20/0x40 [xe]\n20572 [\u00a0 309.939249]\u00a0 drm_gpuvm_exec_lock+0x78/0xc0 [drm_gpuvm]\n20573 [\u00a0 309.944410]\u00a0 xe_validation_exec_lock+0x5a/0xa0 [xe]\n20574 [\u00a0 309.949385]\u00a0 xe_exec_ioctl+0x806/0xc30 [xe]\n20575 [\u00a0 309.953639]\u00a0 ? ttwu_queue_wakelist+0xd9/0xf0\n20576 [\u00a0 309.957935]\u00a0 ? __pfx_xe_exec_fn+0x10/0x10 [xe]\n20577 [\u00a0 309.962449]\u00a0 ? __wake_up_common+0x73/0xa0\n20578 [\u00a0 309.966482]\u00a0 ? __pfx_xe_exec_ioctl+0x10/0x10 [xe]\n20579 [\u00a0 309.971263]\u00a0 drm_ioctl_kernel+0xa3/0x100\n20580 [\u00a0 309.975209]\u00a0 drm_ioctl+0x213/0x440\n20581 [\u00a0 309.978637]\u00a0 ? __pfx_xe_exec_ioctl+0x10/0x10 [xe]\n20582 [\u00a0 309.983415]\u00a0 xe_drm_ioctl+0x67/0xd0 [xe]\n20583 [\u00a0 309.987408]\u00a0 __x64_sys_ioctl+0x7f/0xd0"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is reached only via local DRM ioctls on a TTM GPU (Intel Xe xe_exec_ioctl -\u003e xe_bo_validate -\u003e ttm_bo_validate -\u003e ttm_tt_restore -\u003e ttm_pool_restore_and_alloc). It is not reachable from network packets, Bluetooth/Wi-Fi frames, or USB.\nAC:L - An attacker can create shrinkable GPU BOs, induce reclaim so the Xe shrinker backs them up to shmem, then retry exec/validate to resume restore and later backup/restore again. Both sides of the backup/restore sequence are attacker-driven and retryable; no victim-only timing or rare non-default config is required.\nPR:L - xe_exec_ioctl, GEM create, and VM bind are DRM_RENDER_ALLOW with no CAP_SYS_ADMIN or DRM-master check. An unprivileged local user with typical render/video-group access to /dev/dri/renderD* on Xe systems can open the render node and exercise this path.\nUI:N - The attacker opens the render node, creates BOs, and issues exec/validate ioctls in their own process. No separate victim action such as mounting a filesystem or opening a file is required.\nS:U - Impact stays in the host kernel TTM/DRM authority (bogus page pointers used for SG/DMA and page-fault mapping). This is not a guest-to-host, IOMMU, or sandbox boundary escape.\nC:H - After a successful resumed restore, tt-\u003erestore is left set so a later backup/restore skips restore while shmem handles remain in tt-\u003epages. Those handles are type-confused as struct page * in sg_alloc_append_table_from_pages, dma_map_sgtable, and ttm_bo_vm_fault page_to_pfn/vmf_insert_pfn, which can disclose kernel or physical memory.\nI:H - The same page-pointer type confusion feeds encoded shmem handles into scatter-gather DMA mapping and vmf_insert_pfn, which is memory corruption exploitable for arbitrary write or control-flow hijack rather than a pure crash.\nA:H - The reported oops is a kernel crash in sg_alloc_append_table_from_pages while walking the still-encoded handles as page pointers, which takes down the host."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-21T13:15:05.305Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/329ddc5d438f991f49e4fd24c704d1c7288d5e03"
        },
        {
          "url": "https://git.kernel.org/stable/c/a46ab76b6cf5478e2ac7b942a377c7a1827b436a"
        },
        {
          "url": "https://git.kernel.org/stable/c/941ac10529b3be5965a88d432a161ab459672ba8"
        }
      ],
      "title": "drm/ttm: Drop tt-\u003erestore after successful restore",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89815",
    "datePublished": "2026-09-16T10:30:48.133Z",
    "dateReserved": "2026-09-11T19:38:34.768Z",
    "dateUpdated": "2026-09-21T13:15:05.305Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-89815",
      "date": "2026-09-25",
      "epss": "0.00173",
      "percentile": "0.0595"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/ttm/ttm_pool.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "329ddc5d438f991f49e4fd24c704d1c7288d5e03",
                    "status": "affected",
                    "version": "b63d715b8090aed48bdef5930625946fa4c0d324",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "a46ab76b6cf5478e2ac7b942a377c7a1827b436a",
                    "status": "affected",
                    "version": "b63d715b8090aed48bdef5930625946fa4c0d324",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "941ac10529b3be5965a88d432a161ab459672ba8",
                    "status": "affected",
                    "version": "b63d715b8090aed48bdef5930625946fa4c0d324",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/ttm/ttm_pool.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.15"
                  },
                  {
                    "lessThan": "6.15",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.53",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.2.*",
                    "status": "unaffected",
                    "version": "7.2.5",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.3-rc1",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: Drop tt-\u003erestore after successful restore\n\nttm_pool_restore_and_alloc() can successfully complete the restore\nprocess via ttm_pool_restore_commit(), but tt-\u003erestore is not dropped\nafterward. As a result, subsequent backup/restore flows observe what\nappears to be a completed restore, while in reality shmem handles are\nstill installed in tt-\u003epages, leading to the stack trace below.\n\nFix this by freeing and dropping tt-\u003erestore in\nttm_pool_restore_and_alloc() upon successful completion of the restore.\n\n20545 [\u00a0 309.784531] RIP: 0010:sg_alloc_append_table_from_pages+0x38c/0x490\n20547 [\u00a0 309.809570] RSP: 0018:ffffc9000623b838 EFLAGS: 00010206\n20548 [\u00a0 309.814827] RAX: 0000000000001000 RBX: ffff88816e42a160 RCX: 0000000000000000\n20549 [\u00a0 309.821986] RDX: 0000000000002000 RSI: 0000000000000003 RDI: 0000000000001000\n20550 [\u00a0 309.829147] RBP: ffff88816e42a168 R08: 0000000000000002 R09: 000000007ffff000\n20551 [\u00a0 309.836310] R10: ffffc9000623b928 R11: 0000000000000000 R12: 000000007ffff000\n20552 [\u00a0 309.843471] R13: ffff88815ba5a100 R14: 0000000000000000 R15: 0000000000000001\n20553 [\u00a0 309.850634] FS:\u00a0 00007f9ff305e700(0000) GS:ffff888276c94000(0000) knlGS:0000000000000000\n20554 [\u00a0 309.858749] CS:\u00a0 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n20555 [\u00a0 309.864519] CR2: 00007f9fca701000 CR3: 00000001565e2005 CR4: 0000000008f70ef0\n20556 [\u00a0 309.871678] PKRU: 55555558\n20557 [\u00a0 309.874403] Call Trace:\n20558 [\u00a0 309.876866]\u00a0 \u003cTASK\u003e\n20559 [\u00a0 309.878988]\u00a0 sg_alloc_table_from_pages_segment+0x60/0x100\n20560 [\u00a0 309.884415]\u00a0 ? ttm_resource_manager_usage+0x36/0x60 [ttm]\n20561 [\u00a0 309.889845]\u00a0 ? xe_tt_map_sg+0x7d/0xd0 [xe]\n20562 [\u00a0 309.894045]\u00a0 xe_tt_map_sg+0x7d/0xd0 [xe]\n20563 [\u00a0 309.898037]\u00a0 xe_bo_move+0x927/0xaa0 [xe]\n20564 [\u00a0 309.902029]\u00a0 ttm_bo_handle_move_mem+0xba/0x170 [ttm]\n20565 [\u00a0 309.907022]\u00a0 ttm_bo_validate+0xbe/0x190 [ttm]\n20566 [\u00a0 309.911405]\u00a0 xe_bo_validate+0x9a/0x120 [xe]\n20567 [\u00a0 309.915663]\u00a0 xe_gpuvm_validate+0xd9/0x140 [xe]\n20568 [\u00a0 309.920206]\u00a0 drm_gpuvm_validate+0x2f0/0x5b0 [drm_gpuvm]\n20569 [\u00a0 309.925459]\u00a0 ? drm_exec_lock_obj+0x63/0x210 [drm_exec]\n20570 [\u00a0 309.930627]\u00a0 xe_vm_validate_rebind+0x46/0xb0 [xe]\n20571 [\u00a0 309.935428]\u00a0 xe_exec_fn+0x20/0x40 [xe]\n20572 [\u00a0 309.939249]\u00a0 drm_gpuvm_exec_lock+0x78/0xc0 [drm_gpuvm]\n20573 [\u00a0 309.944410]\u00a0 xe_validation_exec_lock+0x5a/0xa0 [xe]\n20574 [\u00a0 309.949385]\u00a0 xe_exec_ioctl+0x806/0xc30 [xe]\n20575 [\u00a0 309.953639]\u00a0 ? ttwu_queue_wakelist+0xd9/0xf0\n20576 [\u00a0 309.957935]\u00a0 ? __pfx_xe_exec_fn+0x10/0x10 [xe]\n20577 [\u00a0 309.962449]\u00a0 ? __wake_up_common+0x73/0xa0\n20578 [\u00a0 309.966482]\u00a0 ? __pfx_xe_exec_ioctl+0x10/0x10 [xe]\n20579 [\u00a0 309.971263]\u00a0 drm_ioctl_kernel+0xa3/0x100\n20580 [\u00a0 309.975209]\u00a0 drm_ioctl+0x213/0x440\n20581 [\u00a0 309.978637]\u00a0 ? __pfx_xe_exec_ioctl+0x10/0x10 [xe]\n20582 [\u00a0 309.983415]\u00a0 xe_drm_ioctl+0x67/0xd0 [xe]\n20583 [\u00a0 309.987408]\u00a0 __x64_sys_ioctl+0x7f/0xd0"
          }
        ],
        "id": "CVE-2026-89815",
        "lastModified": "2026-09-21T14:17:27.127",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-09-16T11:16:46.720",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/329ddc5d438f991f49e4fd24c704d1c7288d5e03"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/941ac10529b3be5965a88d432a161ab459672ba8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/a46ab76b6cf5478e2ac7b942a377c7a1827b436a"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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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.



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.