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CVE-2024-38598 (GCVE-0-2024-38598)

Vulnerability from cvelistv5 – Published: 2024-06-19 13:45 – Updated: 2026-05-23 15:49
VLAI
Title
md: fix resync softlockup when bitmap size is less than array size
Summary
In the Linux kernel, the following vulnerability has been resolved: md: fix resync softlockup when bitmap size is less than array size Is is reported that for dm-raid10, lvextend + lvchange --syncaction will trigger following softlockup: kernel:watchdog: BUG: soft lockup - CPU#3 stuck for 26s! [mdX_resync:6976] CPU: 7 PID: 3588 Comm: mdX_resync Kdump: loaded Not tainted 6.9.0-rc4-next-20240419 #1 RIP: 0010:_raw_spin_unlock_irq+0x13/0x30 Call Trace: <TASK> md_bitmap_start_sync+0x6b/0xf0 raid10_sync_request+0x25c/0x1b40 [raid10] md_do_sync+0x64b/0x1020 md_thread+0xa7/0x170 kthread+0xcf/0x100 ret_from_fork+0x30/0x50 ret_from_fork_asm+0x1a/0x30 And the detailed process is as follows: md_do_sync j = mddev->resync_min while (j < max_sectors) sectors = raid10_sync_request(mddev, j, &skipped) if (!md_bitmap_start_sync(..., &sync_blocks)) // md_bitmap_start_sync set sync_blocks to 0 return sync_blocks + sectors_skippe; // sectors = 0; j += sectors; // j never change Root cause is that commit 301867b1c168 ("md/raid10: check slab-out-of-bounds in md_bitmap_get_counter") return early from md_bitmap_get_counter(), without setting returned blocks. Fix this problem by always set returned blocks from md_bitmap_get_counter"(), as it used to be. Noted that this patch just fix the softlockup problem in kernel, the case that bitmap size doesn't match array size still need to be fixed.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:13 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 374fb914304d9b500721007f3837ea8f1f9a2418 , < d4b9c764d48fa41caa24cfb4275f3aa9fb4bd798 (git)
Affected: b0b971fe7d61411ede63c3291764dbde1577ef2c , < 43771597feba89a839c5f893716df88ae5c237ce (git)
Affected: 39fa14e824acfd470db4f42c354297456bd82b53 , < 3f5b73ef8fd6268cbc968b308d8eafe56fda97f3 (git)
Affected: a134dd582c0d5b6068efa308bd485cf1d00b3f65 , < 69296914bfd508c85935bf5f711cad9b0fe78492 (git)
Affected: be1a3ec63a840cc9e59a033acf154f56255699a1 , < 71e8e4f288e74a896b6d9cd194f3bab12bd7a10f (git)
Affected: 301867b1c16805aebbc306aafa6ecdc68b73c7e5 , < c9566b812c8f66160466cc1e29df6d3646add0b1 (git)
Affected: 301867b1c16805aebbc306aafa6ecdc68b73c7e5 , < 5817f43ae1a118855676f57ef7ab50e37eac7482 (git)
Affected: 301867b1c16805aebbc306aafa6ecdc68b73c7e5 , < 8bbc71315e0ae4bb7e37f8d43b915e1cb01a481b (git)
Affected: 301867b1c16805aebbc306aafa6ecdc68b73c7e5 , < f0e729af2eb6bee9eb58c4df1087f14ebaefe26b (git)
Affected: 152bb26796ff054af50b2ee1b3ca56e364e4f61b (git)
Affected: bea301c046110bf421a3ce153fb868cb8d618e90 (git)
Affected: 4.19.291 , < 4.19.316 (semver)
Affected: 5.4.251 , < 5.4.278 (semver)
Affected: 5.10.188 , < 5.10.219 (semver)
Affected: 5.15.121 , < 5.15.161 (semver)
Affected: 6.1.39 , < 6.1.93 (semver)
Affected: 6.3.13 , < 6.4 (semver)
Affected: 6.4.4 , < 6.5 (semver)
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Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 4.19.316 , ≤ 4.19.* (semver)
Unaffected: 5.4.278 , ≤ 5.4.* (semver)
Unaffected: 5.10.219 , ≤ 5.10.* (semver)
Unaffected: 5.15.161 , ≤ 5.15.* (semver)
Unaffected: 6.1.93 , ≤ 6.1.* (semver)
Unaffected: 6.6.33 , ≤ 6.6.* (semver)
Unaffected: 6.8.12 , ≤ 6.8.* (semver)
Unaffected: 6.9.3 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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Siemens RUGGEDCOM RST2428P Affected: 0 , < V3.1 (custom)
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Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Unaffected: 0 , < * (custom)
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Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Affected: 0 , < V3.1 (custom)
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Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
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          "url": "https://git.kernel.org/stable/c/f0e729af2eb6bee9eb58c4df1087f14ebaefe26b"
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      "title": "md: fix resync softlockup when bitmap size is less than array size",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-38598",
    "datePublished": "2024-06-19T13:45:47.309Z",
    "dateReserved": "2024-06-18T19:36:34.932Z",
    "dateUpdated": "2026-05-23T15:49:18.122Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
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    "epss": {
      "cve": "CVE-2024-38598",
      "date": "2026-09-13",
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[mdX_resync:6976]\\nCPU: 7 PID: 3588 Comm: mdX_resync Kdump: loaded Not tainted 6.9.0-rc4-next-20240419 #1\\nRIP: 0010:_raw_spin_unlock_irq+0x13/0x30\\nCall Trace:\\n \u003cTASK\u003e\\n md_bitmap_start_sync+0x6b/0xf0\\n raid10_sync_request+0x25c/0x1b40 [raid10]\\n md_do_sync+0x64b/0x1020\\n md_thread+0xa7/0x170\\n kthread+0xcf/0x100\\n ret_from_fork+0x30/0x50\\n ret_from_fork_asm+0x1a/0x30\\n\\nAnd the detailed process is as follows:\\n\\nmd_do_sync\\n j = mddev-\u003eresync_min\\n while (j \u003c max_sectors)\\n  sectors = raid10_sync_request(mddev, j, \u0026skipped)\\n   if (!md_bitmap_start_sync(..., \u0026sync_blocks))\\n    // md_bitmap_start_sync set sync_blocks to 0\\n    return sync_blocks + sectors_skippe;\\n  // sectors = 0;\\n  j += sectors;\\n  // j never change\\n\\nRoot cause is that commit 301867b1c168 (\\\"md/raid10: check\\nslab-out-of-bounds in md_bitmap_get_counter\\\") return early from\\nmd_bitmap_get_counter(), without setting returned blocks.\\n\\nFix this problem by always set returned blocks from\\nmd_bitmap_get_counter\\\"(), as it used to be.\\n\\nNoted that this patch just fix the softlockup problem in kernel, the\\ncase that bitmap size doesn\u0027t match array size still need to be fixed.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: md: corrige el bloqueo suave de resincronizaci\u00f3n cuando el tama\u00f1o del mapa de bits es menor que el tama\u00f1o de la matriz. Se informa que para dm-raid10, lvextend + lvchange --syncaction activar\u00e1 el siguiente bloqueo suave: kernel:watchdog: ERROR : bloqueo suave - \u00a1CPU n.\u00b0 3 bloqueada durante 26 segundos! [mdX_resync:6976] CPU: 7 PID: 3588 Comm: mdX_resync Kdump: cargado No contaminado 6.9.0-rc4-next-20240419 #1 RIP: 0010:_raw_spin_unlock_irq+0x13/0x30 Seguimiento de llamadas:  md_bitmap_start_sync+0x6b/0xf0 raid10_sync_request+0x25c/0x1b40 [raid10] md_do_sync+0x64b/0x1020 md_thread+0xa7/0x170 kthread+0xcf/0x100 ret_from_fork+0x30/0x50 ret_from_fork_asm+0x1a/0x30 Y el proceso detallado es el siguiente: _sync j = mddev-\u0026gt;resync_min mientras ( j \u0026lt; max_sectors) sectores = raid10_sync_request(mddev, j, \u0026amp;skipped) if (!md_bitmap_start_sync(..., \u0026amp;sync_blocks)) // md_bitmap_start_sync establece sync_blocks en 0 return sync_blocks + sectores_skippe; // sectores = 0; j += sectores; // j nunca cambia La causa principal es que el commit 301867b1c168 (\\\"md/raid10: check slab-out-of-bounds in md_bitmap_get_counter\\\") regresa antes de md_bitmap_get_counter(), sin configurar los bloques devueltos. Solucione este problema estableciendo siempre los bloques devueltos desde md_bitmap_get_counter\\\"(), como sol\u00eda ser. Tenga en cuenta que este parche solo soluciona el problema de bloqueo suave en el kernel, el caso de que el tama\u00f1o del mapa de bits no coincida con el tama\u00f1o de la matriz a\u00fan debe 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:56:51+00:00",
      "cve": "CVE-2024-38598",
      "id": "CVE-2024-38598",
      "initial_release_date": "2024-06-19T00:00:00+00:00",
      "product_status:fixed": "799",
      "product_status:known_affected": "66",
      "product_status:known_not_affected": "22",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: md: fix resync softlockup when bitmap size is less than array size",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-38598.json",
      "version": "3"
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\"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.219\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.161\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.93\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.33\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/md/md-bitmap.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": 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bitmap size is less than array size\\n\\nIs is reported that for dm-raid10, lvextend + lvchange --syncaction will\\ntrigger following softlockup:\\n\\nkernel:watchdog: BUG: soft lockup - CPU#3 stuck for 26s! [mdX_resync:6976]\\nCPU: 7 PID: 3588 Comm: mdX_resync Kdump: loaded Not tainted 6.9.0-rc4-next-20240419 #1\\nRIP: 0010:_raw_spin_unlock_irq+0x13/0x30\\nCall Trace:\\n \u003cTASK\u003e\\n md_bitmap_start_sync+0x6b/0xf0\\n raid10_sync_request+0x25c/0x1b40 [raid10]\\n md_do_sync+0x64b/0x1020\\n md_thread+0xa7/0x170\\n kthread+0xcf/0x100\\n ret_from_fork+0x30/0x50\\n ret_from_fork_asm+0x1a/0x30\\n\\nAnd the detailed process is as follows:\\n\\nmd_do_sync\\n j = mddev-\u003eresync_min\\n while (j \u003c max_sectors)\\n  sectors = raid10_sync_request(mddev, j, \u0026skipped)\\n   if (!md_bitmap_start_sync(..., \u0026sync_blocks))\\n    // md_bitmap_start_sync set sync_blocks to 0\\n    return sync_blocks + sectors_skippe;\\n  // sectors = 0;\\n  j += sectors;\\n  // j never change\\n\\nRoot cause is that commit 301867b1c168 (\\\"md/raid10: check\\nslab-out-of-bounds in md_bitmap_get_counter\\\") return early from\\nmd_bitmap_get_counter(), without setting returned blocks.\\n\\nFix this problem by always set returned blocks from\\nmd_bitmap_get_counter\\\"(), as it used to be.\\n\\nNoted that this patch just fix the softlockup problem in kernel, the\\ncase that bitmap size doesn\u0027t match array size still need to be fixed.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.316\", \"versionStartIncluding\": \"4.19.291\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.278\", \"versionStartIncluding\": \"5.4.251\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.219\", \"versionStartIncluding\": \"5.10.188\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.161\", \"versionStartIncluding\": \"5.15.121\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.93\", \"versionStartIncluding\": \"6.1.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.33\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.12\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.3\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.3.13\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.4.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T15:49:18.122Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-38598\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-23T15:49:18.122Z\", \"dateReserved\": \"2024-06-18T19:36:34.932Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-19T13:45:47.309Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.