github - ghsa-cpf6-9p2g-chcq

ghsa-cpf6-9p2g-chcq

Vulnerability from github

Published

2024-04-17 12:32

Modified

2024-04-17 12:32

Details

In the Linux kernel, the following vulnerability has been resolved:

mm/debug_vm_pgtable: fix BUG_ON with pud advanced test

Architectures like powerpc add debug checks to ensure we find only devmap PUD pte entries. These debug checks are only done with CONFIG_DEBUG_VM. This patch marks the ptes used for PUD advanced test devmap pte entries so that we don't hit on debug checks on architecture like ppc64 as below.

WARNING: CPU: 2 PID: 1 at arch/powerpc/mm/book3s64/radix_pgtable.c:1382 radix__pud_hugepage_update+0x38/0x138 .... NIP [c0000000000a7004] radix__pud_hugepage_update+0x38/0x138 LR [c0000000000a77a8] radix__pudp_huge_get_and_clear+0x28/0x60 Call Trace: [c000000004a2f950] [c000000004a2f9a0] 0xc000000004a2f9a0 (unreliable) [c000000004a2f980] [000d34c100000000] 0xd34c100000000 [c000000004a2f9a0] [c00000000206ba98] pud_advanced_tests+0x118/0x334 [c000000004a2fa40] [c00000000206db34] debug_vm_pgtable+0xcbc/0x1c48 [c000000004a2fc10] [c00000000000fd28] do_one_initcall+0x60/0x388

Also

kernel BUG at arch/powerpc/mm/book3s64/pgtable.c:202! ....

NIP [c000000000096510] pudp_huge_get_and_clear_full+0x98/0x174 LR [c00000000206bb34] pud_advanced_tests+0x1b4/0x334 Call Trace: [c000000004a2f950] [000d34c100000000] 0xd34c100000000 (unreliable) [c000000004a2f9a0] [c00000000206bb34] pud_advanced_tests+0x1b4/0x334 [c000000004a2fa40] [c00000000206db34] debug_vm_pgtable+0xcbc/0x1c48 [c000000004a2fc10] [c00000000000fd28] do_one_initcall+0x60/0x388

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2024-26850"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-17T11:15:08Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/debug_vm_pgtable: fix BUG_ON with pud advanced test\n\nArchitectures like powerpc add debug checks to ensure we find only devmap\nPUD pte entries.  These debug checks are only done with CONFIG_DEBUG_VM. \nThis patch marks the ptes used for PUD advanced test devmap pte entries so\nthat we don\u0027t hit on debug checks on architecture like ppc64 as below.\n\nWARNING: CPU: 2 PID: 1 at arch/powerpc/mm/book3s64/radix_pgtable.c:1382 radix__pud_hugepage_update+0x38/0x138\n....\nNIP [c0000000000a7004] radix__pud_hugepage_update+0x38/0x138\nLR [c0000000000a77a8] radix__pudp_huge_get_and_clear+0x28/0x60\nCall Trace:\n[c000000004a2f950] [c000000004a2f9a0] 0xc000000004a2f9a0 (unreliable)\n[c000000004a2f980] [000d34c100000000] 0xd34c100000000\n[c000000004a2f9a0] [c00000000206ba98] pud_advanced_tests+0x118/0x334\n[c000000004a2fa40] [c00000000206db34] debug_vm_pgtable+0xcbc/0x1c48\n[c000000004a2fc10] [c00000000000fd28] do_one_initcall+0x60/0x388\n\nAlso\n\n kernel BUG at arch/powerpc/mm/book3s64/pgtable.c:202!\n ....\n\n NIP [c000000000096510] pudp_huge_get_and_clear_full+0x98/0x174\n LR [c00000000206bb34] pud_advanced_tests+0x1b4/0x334\n Call Trace:\n [c000000004a2f950] [000d34c100000000] 0xd34c100000000 (unreliable)\n [c000000004a2f9a0] [c00000000206bb34] pud_advanced_tests+0x1b4/0x334\n [c000000004a2fa40] [c00000000206db34] debug_vm_pgtable+0xcbc/0x1c48\n [c000000004a2fc10] [c00000000000fd28] do_one_initcall+0x60/0x388",
  "id": "GHSA-cpf6-9p2g-chcq",
  "modified": "2024-04-17T12:32:04Z",
  "published": "2024-04-17T12:32:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26850"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/720da1e593b85a550593b415bf1d79a053133451"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d2a9510c0e39d06f5544075c13040407bdbf2803"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eeeddf85fc58d48c58ad916e4ca12363ebd8ab21"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2024-26850

Vulnerability from cvelistv5

Published

2024-04-17 10:14

Modified

2024-12-19 08:48

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/debug_vm_pgtable: fix BUG_ON with pud advanced test Architectures like powerpc add debug checks to ensure we find only devmap PUD pte entries. These debug checks are only done with CONFIG_DEBUG_VM. This patch marks the ptes used for PUD advanced test devmap pte entries so that we don't hit on debug checks on architecture like ppc64 as below. WARNING: CPU: 2 PID: 1 at arch/powerpc/mm/book3s64/radix_pgtable.c:1382 radix__pud_hugepage_update+0x38/0x138 .... NIP [c0000000000a7004] radix__pud_hugepage_update+0x38/0x138 LR [c0000000000a77a8] radix__pudp_huge_get_and_clear+0x28/0x60 Call Trace: [c000000004a2f950] [c000000004a2f9a0] 0xc000000004a2f9a0 (unreliable) [c000000004a2f980] [000d34c100000000] 0xd34c100000000 [c000000004a2f9a0] [c00000000206ba98] pud_advanced_tests+0x118/0x334 [c000000004a2fa40] [c00000000206db34] debug_vm_pgtable+0xcbc/0x1c48 [c000000004a2fc10] [c00000000000fd28] do_one_initcall+0x60/0x388 Also kernel BUG at arch/powerpc/mm/book3s64/pgtable.c:202! .... NIP [c000000000096510] pudp_huge_get_and_clear_full+0x98/0x174 LR [c00000000206bb34] pud_advanced_tests+0x1b4/0x334 Call Trace: [c000000004a2f950] [000d34c100000000] 0xd34c100000000 (unreliable) [c000000004a2f9a0] [c00000000206bb34] pud_advanced_tests+0x1b4/0x334 [c000000004a2fa40] [c00000000206db34] debug_vm_pgtable+0xcbc/0x1c48 [c000000004a2fc10] [c00000000000fd28] do_one_initcall+0x60/0x388

References

▼	URL	Tags
	https://git.kernel.org/stable/c/d2a9510c0e39d06f5544075c13040407bdbf2803
	https://git.kernel.org/stable/c/eeeddf85fc58d48c58ad916e4ca12363ebd8ab21
	https://git.kernel.org/stable/c/720da1e593b85a550593b415bf1d79a053133451

Impacted products

Vendor

Product

Version

▼

Linux

Version: 27af67f35631ac4b61b5e4455b44c9aee8d2cc4b
Version: 27af67f35631ac4b61b5e4455b44c9aee8d2cc4b
Version: 27af67f35631ac4b61b5e4455b44c9aee8d2cc4b

Linux

Version: 6.6

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:14:13.701Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d2a9510c0e39d06f5544075c13040407bdbf2803"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/eeeddf85fc58d48c58ad916e4ca12363ebd8ab21"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/720da1e593b85a550593b415bf1d79a053133451"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-26850",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:48:41.728236Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:27.633Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/debug_vm_pgtable.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d2a9510c0e39d06f5544075c13040407bdbf2803",
              "status": "affected",
              "version": "27af67f35631ac4b61b5e4455b44c9aee8d2cc4b",
              "versionType": "git"
            },
            {
              "lessThan": "eeeddf85fc58d48c58ad916e4ca12363ebd8ab21",
              "status": "affected",
              "version": "27af67f35631ac4b61b5e4455b44c9aee8d2cc4b",
              "versionType": "git"
            },
            {
              "lessThan": "720da1e593b85a550593b415bf1d79a053133451",
              "status": "affected",
              "version": "27af67f35631ac4b61b5e4455b44c9aee8d2cc4b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/debug_vm_pgtable.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/debug_vm_pgtable: fix BUG_ON with pud advanced test\n\nArchitectures like powerpc add debug checks to ensure we find only devmap\nPUD pte entries.  These debug checks are only done with CONFIG_DEBUG_VM. \nThis patch marks the ptes used for PUD advanced test devmap pte entries so\nthat we don\u0027t hit on debug checks on architecture like ppc64 as below.\n\nWARNING: CPU: 2 PID: 1 at arch/powerpc/mm/book3s64/radix_pgtable.c:1382 radix__pud_hugepage_update+0x38/0x138\n....\nNIP [c0000000000a7004] radix__pud_hugepage_update+0x38/0x138\nLR [c0000000000a77a8] radix__pudp_huge_get_and_clear+0x28/0x60\nCall Trace:\n[c000000004a2f950] [c000000004a2f9a0] 0xc000000004a2f9a0 (unreliable)\n[c000000004a2f980] [000d34c100000000] 0xd34c100000000\n[c000000004a2f9a0] [c00000000206ba98] pud_advanced_tests+0x118/0x334\n[c000000004a2fa40] [c00000000206db34] debug_vm_pgtable+0xcbc/0x1c48\n[c000000004a2fc10] [c00000000000fd28] do_one_initcall+0x60/0x388\n\nAlso\n\n kernel BUG at arch/powerpc/mm/book3s64/pgtable.c:202!\n ....\n\n NIP [c000000000096510] pudp_huge_get_and_clear_full+0x98/0x174\n LR [c00000000206bb34] pud_advanced_tests+0x1b4/0x334\n Call Trace:\n [c000000004a2f950] [000d34c100000000] 0xd34c100000000 (unreliable)\n [c000000004a2f9a0] [c00000000206bb34] pud_advanced_tests+0x1b4/0x334\n [c000000004a2fa40] [c00000000206db34] debug_vm_pgtable+0xcbc/0x1c48\n [c000000004a2fc10] [c00000000000fd28] do_one_initcall+0x60/0x388"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T08:48:40.261Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d2a9510c0e39d06f5544075c13040407bdbf2803"
        },
        {
          "url": "https://git.kernel.org/stable/c/eeeddf85fc58d48c58ad916e4ca12363ebd8ab21"
        },
        {
          "url": "https://git.kernel.org/stable/c/720da1e593b85a550593b415bf1d79a053133451"
        }
      ],
      "title": "mm/debug_vm_pgtable: fix BUG_ON with pud advanced test",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26850",
    "datePublished": "2024-04-17T10:14:20.812Z",
    "dateReserved": "2024-02-19T14:20:24.183Z",
    "dateUpdated": "2024-12-19T08:48:40.261Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted