CVE-2026-98917 (GCVE-0-2026-98917)

Vulnerability from cvelistv5 – Published: 2026-10-23 12:01 – Updated: 2026-10-23 12:05
VLAI
Title
parisc: Increase kernel stack size to 32kb
Summary
In the Linux kernel, the following vulnerability has been resolved: parisc: Increase kernel stack size to 32kb For 64-bit Linux kernels, increase the default kernel stack size (THREAD_SIZE_ORDER) to 32 kB, in order to avoid kernel crashes which have been triggered recently when building the debian vtk9 package with gcc 17: stackcheck: kworker/u128:0 will most likely overflow kernel stack (sp:179a83af0, stk bottom-top:179a80000-179a84000) Kernel panic - not syncing: low stack detected by irq handler - check messages CPU: 2 UID: 0 PID: 30760 Comm: kworker/u128:0 Tainted: G W 6.18.46-dirty #1 NONE Tainted: [W]=WARN Hardware name: 9000/800/rp3440 Workqueue: writeback wb_workfn (flush-259:0) Backtrace: [<000000004022f050>] show_stack+0x70/0x90 [<000000004022378c>] dump_stack_lvl+0x124/0x190 [<000000004022382c>] dump_stack+0x34/0x48 [<000000004020212c>] vpanic+0x204/0x648 [<00000000402025c4>] panic+0x54/0x58 [<0000000040232230>] do_cpu_irq_mask+0x3f8/0x440 [<0000000040227070>] intr_return+0x0/0xc
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7061 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5023c70853ad9829c53d8e9def5ee969b4e1b931 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < db45f02b7a5f753efc9003f616dfb5ee4cb6d077 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 94b7e3a7e871ae27d4935c76959dfc61829f27f9 (git)
Affected: 0 , < 6.18.55 (semver)
Affected: 0 , < 7.2.9 (semver)
guessed Create a notification for this product.
Linux Linux Unaffected: 6.18.55 , ≤ 6.18.* (semver)
Unaffected: 7.2.9 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/parisc/include/asm/thread_info.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5023c70853ad9829c53d8e9def5ee969b4e1b931",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "db45f02b7a5f753efc9003f616dfb5ee4cb6d077",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "94b7e3a7e871ae27d4935c76959dfc61829f27f9",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "6.18.55",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "7.2.9",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/parisc/include/asm/thread_info.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.55",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nparisc: Increase kernel stack size to 32kb\n\nFor 64-bit Linux kernels, increase the default kernel stack size\n(THREAD_SIZE_ORDER) to 32 kB, in order to avoid kernel crashes which have been\ntriggered recently when building the debian vtk9 package with gcc 17:\n\nstackcheck: kworker/u128:0 will most likely overflow kernel stack (sp:179a83af0, stk bottom-top:179a80000-179a84000)\nKernel panic - not syncing: low stack detected by irq handler - check messages\nCPU: 2 UID: 0 PID: 30760 Comm: kworker/u128:0 Tainted: G W 6.18.46-dirty #1 NONE\nTainted: [W]=WARN\nHardware name: 9000/800/rp3440\nWorkqueue: writeback wb_workfn (flush-259:0)\nBacktrace:\n [\u003c000000004022f050\u003e] show_stack+0x70/0x90\n [\u003c000000004022378c\u003e] dump_stack_lvl+0x124/0x190\n [\u003c000000004022382c\u003e] dump_stack+0x34/0x48\n [\u003c000000004020212c\u003e] vpanic+0x204/0x648\n [\u003c00000000402025c4\u003e] panic+0x54/0x58\n [\u003c0000000040232230\u003e] do_cpu_irq_mask+0x3f8/0x440\n [\u003c0000000040227070\u003e] intr_return+0x0/0xc"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-23T12:05:00.184Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5023c70853ad9829c53d8e9def5ee969b4e1b931"
        },
        {
          "url": "https://git.kernel.org/stable/c/db45f02b7a5f753efc9003f616dfb5ee4cb6d077"
        },
        {
          "url": "https://git.kernel.org/stable/c/94b7e3a7e871ae27d4935c76959dfc61829f27f9"
        }
      ],
      "title": "parisc: Increase kernel stack size to 32kb",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98917",
    "datePublished": "2026-10-23T12:01:46.420Z",
    "dateReserved": "2026-09-25T10:25:14.380Z",
    "dateUpdated": "2026-10-23T12:05:00.184Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "microsoft_vex": {
      "current_release_date": "2026-10-24T01:07:43.000Z",
      "cve": "CVE-2026-98917",
      "id": "msrc_CVE-2026-98917",
      "initial_release_date": "2026-10-24T01:07:43.000Z",
      "product_status:under_investigation": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "parisc: Increase kernel stack size to 32kb",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-98917.json",
      "version": "1"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "arch/parisc/include/asm/thread_info.h"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "5023c70853ad9829c53d8e9def5ee969b4e1b931",
                    "status": "affected",
                    "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "db45f02b7a5f753efc9003f616dfb5ee4cb6d077",
                    "status": "affected",
                    "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "94b7e3a7e871ae27d4935c76959dfc61829f27f9",
                    "status": "affected",
                    "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6.18.55",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "7.2.9",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "arch/parisc/include/asm/thread_info.h"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.55",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.2.*",
                    "status": "unaffected",
                    "version": "7.2.9",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.3",
                    "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\nparisc: Increase kernel stack size to 32kb\n\nFor 64-bit Linux kernels, increase the default kernel stack size\n(THREAD_SIZE_ORDER) to 32 kB, in order to avoid kernel crashes which have been\ntriggered recently when building the debian vtk9 package with gcc 17:\n\nstackcheck: kworker/u128:0 will most likely overflow kernel stack (sp:179a83af0, stk bottom-top:179a80000-179a84000)\nKernel panic - not syncing: low stack detected by irq handler - check messages\nCPU: 2 UID: 0 PID: 30760 Comm: kworker/u128:0 Tainted: G W 6.18.46-dirty #1 NONE\nTainted: [W]=WARN\nHardware name: 9000/800/rp3440\nWorkqueue: writeback wb_workfn (flush-259:0)\nBacktrace:\n [\u003c000000004022f050\u003e] show_stack+0x70/0x90\n [\u003c000000004022378c\u003e] dump_stack_lvl+0x124/0x190\n [\u003c000000004022382c\u003e] dump_stack+0x34/0x48\n [\u003c000000004020212c\u003e] vpanic+0x204/0x648\n [\u003c00000000402025c4\u003e] panic+0x54/0x58\n [\u003c0000000040232230\u003e] do_cpu_irq_mask+0x3f8/0x440\n [\u003c0000000040227070\u003e] intr_return+0x0/0xc"
          }
        ],
        "id": "CVE-2026-98917",
        "lastModified": "2026-10-23T13:17:12.247",
        "metrics": {},
        "published": "2026-10-23T13:17:12.247",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/5023c70853ad9829c53d8e9def5ee969b4e1b931"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/94b7e3a7e871ae27d4935c76959dfc61829f27f9"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/db45f02b7a5f753efc9003f616dfb5ee4cb6d077"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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