CVE-2026-98593

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix NULL pointer dereference in debug_info_copy() When debug_register_static() fails, it clears areas, active_pages and active_entries but leaves the area bounds unchanged. Copying such an area, either by opening its view file or via debug_dump(), makes debug_info_copy() dereference the NULL pointers. Skip the copy loop when the source has no areas.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-10-18 16:17:11.933000

Last modified

2026-10-19 10:19:20.473000

View original CVE JSON

{
  "id": "CVE-2026-98593",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-18T16:17:11.933",
  "lastModified": "2026-10-19T10:19:20.473",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/debug: Fix NULL pointer dereference in debug_info_copy()\n\nWhen debug_register_static() fails, it clears areas, active_pages and\nactive_entries but leaves the area bounds unchanged. Copying such an\narea, either by opening its view file or via debug_dump(), makes\ndebug_info_copy() dereference the NULL pointers.\n\nSkip the copy loop when the source has no areas."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "arch/s390/kernel/debug.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
              "lessThan": "13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
              "lessThan": "a19bede30f0da5ae56782edac62b5998a7434cba",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
              "lessThan": "33f706884821da9cb55b650b7b1d4f2bdf800137",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
              "lessThan": "2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
              "lessThan": "9c6af88fbefbe77608b77409df23a1617e28398c",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
              "lessThan": "c593f38e1cdb92f87d01be4c4e5ac12417b1454b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
              "lessThan": "012bfcd5a51082d5a65f096dfb9ca652b5267965",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "arch/s390/kernel/debug.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "5.15",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "5.15",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.15.222",
              "lessThanOrEqual": "5.15.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.189",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.158",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.112",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.55",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.9",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/012bfcd5a51082d5a65f096dfb9ca652b5267965",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/33f706884821da9cb55b650b7b1d4f2bdf800137",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9c6af88fbefbe77608b77409df23a1617e28398c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a19bede30f0da5ae56782edac62b5998a7434cba",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c593f38e1cdb92f87d01be4c4e5ac12417b1454b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}