CVE-2024-56701 (GCVE-0-2024-56701)

Vulnerability from cvelistv5 – Published: 2024-12-28 09:46 – Updated: 2025-11-03 20:52
VLAI?
Title
powerpc/pseries: Fix dtl_access_lock to be a rw_semaphore
Summary
In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix dtl_access_lock to be a rw_semaphore The dtl_access_lock needs to be a rw_sempahore, a sleeping lock, because the code calls kmalloc() while holding it, which can sleep: # echo 1 > /proc/powerpc/vcpudispatch_stats BUG: sleeping function called from invalid context at include/linux/sched/mm.h:337 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 199, name: sh preempt_count: 1, expected: 0 3 locks held by sh/199: #0: c00000000a0743f8 (sb_writers#3){.+.+}-{0:0}, at: vfs_write+0x324/0x438 #1: c0000000028c7058 (dtl_enable_mutex){+.+.}-{3:3}, at: vcpudispatch_stats_write+0xd4/0x5f4 #2: c0000000028c70b8 (dtl_access_lock){+.+.}-{2:2}, at: vcpudispatch_stats_write+0x220/0x5f4 CPU: 0 PID: 199 Comm: sh Not tainted 6.10.0-rc4 #152 Hardware name: IBM pSeries (emulated by qemu) POWER9 (raw) 0x4e1202 0xf000005 of:SLOF,HEAD hv:linux,kvm pSeries Call Trace: dump_stack_lvl+0x130/0x148 (unreliable) __might_resched+0x174/0x410 kmem_cache_alloc_noprof+0x340/0x3d0 alloc_dtl_buffers+0x124/0x1ac vcpudispatch_stats_write+0x2a8/0x5f4 proc_reg_write+0xf4/0x150 vfs_write+0xfc/0x438 ksys_write+0x88/0x148 system_call_exception+0x1c4/0x5a0 system_call_common+0xf4/0x258
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 06220d78f24a20549757be1014e57c382406cc92 , < 6956c0e7346ce1bbfc726755aa8da10d26e84276 (git)
Affected: 06220d78f24a20549757be1014e57c382406cc92 , < f6ec133668757f84e5143f1eb141fd0b83778b9e (git)
Affected: 06220d78f24a20549757be1014e57c382406cc92 , < fa5b5ea257135e771b489c83a2e93b5935d0108e (git)
Affected: 06220d78f24a20549757be1014e57c382406cc92 , < a246daa26b717e755ccc9061f47f7cd1c0b358dd (git)
Affected: 06220d78f24a20549757be1014e57c382406cc92 , < b125d0cf1adde7b2b47d7337fed7e9133eea3463 (git)
Affected: 06220d78f24a20549757be1014e57c382406cc92 , < 525e18f1ba7c2b098c8ba587fb397efb34a6574c (git)
Affected: 06220d78f24a20549757be1014e57c382406cc92 , < cadae3a45d23aa4f6485938a67cbc47aaaa25e38 (git)
Create a notification for this product.
    Linux Linux Affected: 5.3
Unaffected: 0 , < 5.3 (semver)
Unaffected: 5.10.231 , ≤ 5.10.* (semver)
Unaffected: 5.15.174 , ≤ 5.15.* (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.64 , ≤ 6.6.* (semver)
Unaffected: 6.11.11 , ≤ 6.11.* (semver)
Unaffected: 6.12.2 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:52:50.956Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/powerpc/include/asm/dtl.h",
            "arch/powerpc/platforms/pseries/dtl.c",
            "arch/powerpc/platforms/pseries/lpar.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6956c0e7346ce1bbfc726755aa8da10d26e84276",
              "status": "affected",
              "version": "06220d78f24a20549757be1014e57c382406cc92",
              "versionType": "git"
            },
            {
              "lessThan": "f6ec133668757f84e5143f1eb141fd0b83778b9e",
              "status": "affected",
              "version": "06220d78f24a20549757be1014e57c382406cc92",
              "versionType": "git"
            },
            {
              "lessThan": "fa5b5ea257135e771b489c83a2e93b5935d0108e",
              "status": "affected",
              "version": "06220d78f24a20549757be1014e57c382406cc92",
              "versionType": "git"
            },
            {
              "lessThan": "a246daa26b717e755ccc9061f47f7cd1c0b358dd",
              "status": "affected",
              "version": "06220d78f24a20549757be1014e57c382406cc92",
              "versionType": "git"
            },
            {
              "lessThan": "b125d0cf1adde7b2b47d7337fed7e9133eea3463",
              "status": "affected",
              "version": "06220d78f24a20549757be1014e57c382406cc92",
              "versionType": "git"
            },
            {
              "lessThan": "525e18f1ba7c2b098c8ba587fb397efb34a6574c",
              "status": "affected",
              "version": "06220d78f24a20549757be1014e57c382406cc92",
              "versionType": "git"
            },
            {
              "lessThan": "cadae3a45d23aa4f6485938a67cbc47aaaa25e38",
              "status": "affected",
              "version": "06220d78f24a20549757be1014e57c382406cc92",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/powerpc/include/asm/dtl.h",
            "arch/powerpc/platforms/pseries/dtl.c",
            "arch/powerpc/platforms/pseries/lpar.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.231",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.174",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.231",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.174",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.120",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.64",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.11",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.2",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/pseries: Fix dtl_access_lock to be a rw_semaphore\n\nThe dtl_access_lock needs to be a rw_sempahore, a sleeping lock, because\nthe code calls kmalloc() while holding it, which can sleep:\n\n  # echo 1 \u003e /proc/powerpc/vcpudispatch_stats\n  BUG: sleeping function called from invalid context at include/linux/sched/mm.h:337\n  in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 199, name: sh\n  preempt_count: 1, expected: 0\n  3 locks held by sh/199:\n   #0: c00000000a0743f8 (sb_writers#3){.+.+}-{0:0}, at: vfs_write+0x324/0x438\n   #1: c0000000028c7058 (dtl_enable_mutex){+.+.}-{3:3}, at: vcpudispatch_stats_write+0xd4/0x5f4\n   #2: c0000000028c70b8 (dtl_access_lock){+.+.}-{2:2}, at: vcpudispatch_stats_write+0x220/0x5f4\n  CPU: 0 PID: 199 Comm: sh Not tainted 6.10.0-rc4 #152\n  Hardware name: IBM pSeries (emulated by qemu) POWER9 (raw) 0x4e1202 0xf000005 of:SLOF,HEAD hv:linux,kvm pSeries\n  Call Trace:\n    dump_stack_lvl+0x130/0x148 (unreliable)\n    __might_resched+0x174/0x410\n    kmem_cache_alloc_noprof+0x340/0x3d0\n    alloc_dtl_buffers+0x124/0x1ac\n    vcpudispatch_stats_write+0x2a8/0x5f4\n    proc_reg_write+0xf4/0x150\n    vfs_write+0xfc/0x438\n    ksys_write+0x88/0x148\n    system_call_exception+0x1c4/0x5a0\n    system_call_common+0xf4/0x258"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T10:02:49.180Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6956c0e7346ce1bbfc726755aa8da10d26e84276"
        },
        {
          "url": "https://git.kernel.org/stable/c/f6ec133668757f84e5143f1eb141fd0b83778b9e"
        },
        {
          "url": "https://git.kernel.org/stable/c/fa5b5ea257135e771b489c83a2e93b5935d0108e"
        },
        {
          "url": "https://git.kernel.org/stable/c/a246daa26b717e755ccc9061f47f7cd1c0b358dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/b125d0cf1adde7b2b47d7337fed7e9133eea3463"
        },
        {
          "url": "https://git.kernel.org/stable/c/525e18f1ba7c2b098c8ba587fb397efb34a6574c"
        },
        {
          "url": "https://git.kernel.org/stable/c/cadae3a45d23aa4f6485938a67cbc47aaaa25e38"
        }
      ],
      "title": "powerpc/pseries: Fix dtl_access_lock to be a rw_semaphore",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56701",
    "datePublished": "2024-12-28T09:46:23.516Z",
    "dateReserved": "2024-12-27T15:00:39.856Z",
    "dateUpdated": "2025-11-03T20:52:50.956Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.