CVE-2024-38576 (GCVE-0-2024-38576)

Vulnerability from cvelistv5 – Published: 2024-06-19 13:37 – Updated: 2026-08-05 11:32
VLAI
Title
rcu: Fix buffer overflow in print_cpu_stall_info()
Summary
In the Linux kernel, the following vulnerability has been resolved: rcu: Fix buffer overflow in print_cpu_stall_info() The rcuc-starvation output from print_cpu_stall_info() might overflow the buffer if there is a huge difference in jiffies difference. The situation might seem improbable, but computers sometimes get very confused about time, which can result in full-sized integers, and, in this case, buffer overflow. Also, the unsigned jiffies difference is printed using %ld, which is normally for signed integers. This is intentional for debugging purposes, but it is not obvious from the code. This commit therefore changes sprintf() to snprintf() and adds a clarifying comment about intention of %ld format. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Severity
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 245a62982502255314b63dd2c4daaedd1cd595a6 , < e2228ed3fe7aa838fba87c79a76fb1ad9ea47138 (git)
Affected: 245a62982502255314b63dd2c4daaedd1cd595a6 , < afb39909bfb5c08111f99e21bf5be7505f59ff1c (git)
Affected: 245a62982502255314b63dd2c4daaedd1cd595a6 , < 9351e1338539cb7f319ffc1210fa9b2aa27384b5 (git)
Affected: 245a62982502255314b63dd2c4daaedd1cd595a6 , < 4c3e2ef4d8ddd313c8ce3ac30505940bea8d6257 (git)
Affected: 245a62982502255314b63dd2c4daaedd1cd595a6 , < 3758f7d9917bd7ef0482c4184c0ad673b4c4e069 (git)
Create a notification for this product.
Linux Linux Affected: 6.0
Unaffected: 0 , < 6.0 (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)
Create a notification for this product.
Show details on NVD website
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Esto es intencional con fines de depuraci\u00f3n, pero no es obvio en el c\u00f3digo. Por lo tanto, esta confirmaci\u00f3n cambia sprintf() a snprintf() y agrega un comentario aclaratorio sobre la intenci\u00f3n del formato %ld. Encontrado por el Centro de verificaci\u00f3n de Linux (linuxtesting.org) con SVACE.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"kernel/rcu/tree_stall.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"245a62982502255314b63dd2c4daaedd1cd595a6\",\"lessThan\":\"e2228ed3fe7aa838fba87c79a76fb1ad9ea47138\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"245a62982502255314b63dd2c4daaedd1cd595a6\",\"lessThan\":\"afb39909bfb5c08111f99e21bf5be7505f59ff1c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"245a62982502255314b63dd2c4daaedd1cd595a6\",\"lessThan\":\"9351e1338539cb7f319ffc1210fa9b2aa27384b5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"245a62982502255314b63dd2c4daaedd1cd595a6\",\"lessThan\":\"4c3e2ef4d8ddd313c8ce3ac30505940bea8d6257\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"245a62982502255314b63dd2c4daaedd1cd595a6\",\"lessThan\":\"3758f7d9917bd7ef0482c4184c0ad673b4c4e069\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"kernel/rcu/tree_stall.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.0\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.0\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.93\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.33\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.8.12\",\"lessThanOrEqual\":\"6.8.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.9.3\",\"lessThanOrEqual\":\"6.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-06-20T15:40:30.043568Z\",\"id\":\"CVE-2024-38576\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-04T22:46:13+00:00",
      "cve": "CVE-2024-38576",
      "id": "CVE-2024-38576",
      "initial_release_date": "2024-06-19T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: rcu: Fix buffer overflow in print_cpu_stall_info()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-38576.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-25T01:46:56Z",
      "cve": "CVE-2024-38576",
      "id": "CVE-2024-38576",
      "initial_release_date": "2024-06-21T03:06:19Z",
      "product_status:known_affected": "398",
      "product_status:known_not_affected": "356",
      "product_status:recommended": "366",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-38576",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-38576.json",
      "version": "70"
    },
    "vulnrichment": {
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The situation\\nmight seem improbable, but computers sometimes get very confused about\\ntime, which can result in full-sized integers, and, in this case,\\nbuffer overflow.\\n\\nAlso, the unsigned jiffies difference is printed using %ld, which is\\nnormally for signed integers.  This is intentional for debugging purposes,\\nbut it is not obvious from the code.\\n\\nThis commit therefore changes sprintf() to snprintf() and adds a\\nclarifying comment about intention of %ld format.\\n\\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-05T09:30:13.421Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-38576\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-07T17:27:02.961Z\", \"dateReserved\": \"2024-06-18T19:36:34.924Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-19T13:37:35.142Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.