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CVE-2025-37940 (GCVE-0-2025-37940)

Vulnerability from cvelistv5 – Published: 2025-05-20 15:58 – Updated: 2026-05-11 21:18
VLAI
Title
ftrace: Add cond_resched() to ftrace_graph_set_hash()
Summary
In the Linux kernel, the following vulnerability has been resolved: ftrace: Add cond_resched() to ftrace_graph_set_hash() When the kernel contains a large number of functions that can be traced, the loop in ftrace_graph_set_hash() may take a lot of time to execute. This may trigger the softlockup watchdog. Add cond_resched() within the loop to allow the kernel to remain responsive even when processing a large number of functions. This matches the cond_resched() that is used in other locations of the code that iterates over all functions that can be traced.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b9b0c831bed2682c2e3e9f5420fb6985549ef020 , < e5b4ae6f01d4a510d5725eca7254519a1093920d (git)
Affected: b9b0c831bed2682c2e3e9f5420fb6985549ef020 , < 618655d54c5f8af5d57b77491d08c0f0ff77d114 (git)
Affected: b9b0c831bed2682c2e3e9f5420fb6985549ef020 , < dd38803c9088b848c6b56f4f6d7efc4497bfde61 (git)
Affected: b9b0c831bed2682c2e3e9f5420fb6985549ef020 , < 8dd7d7280357596ba63dfdb4c1725d9dd24bd42a (git)
Affected: b9b0c831bed2682c2e3e9f5420fb6985549ef020 , < 5d336ac215e5c76e43ef4bca9ba699835e53e2fd (git)
Affected: b9b0c831bed2682c2e3e9f5420fb6985549ef020 , < 1fce9574b9d515bcb8a75379a8053e18602424e3 (git)
Affected: b9b0c831bed2682c2e3e9f5420fb6985549ef020 , < 4429535acab750d963fdc3dfcc9e0eee42f4d599 (git)
Affected: b9b0c831bed2682c2e3e9f5420fb6985549ef020 , < 72be43ff061a889c6ee648a330a42486cafa15a6 (git)
Affected: b9b0c831bed2682c2e3e9f5420fb6985549ef020 , < 42ea22e754ba4f2b86f8760ca27f6f71da2d982c (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.11
Unaffected: 0 , < 4.11 (semver)
Unaffected: 5.4.293 , ≤ 5.4.* (semver)
Unaffected: 5.10.237 , ≤ 5.10.* (semver)
Unaffected: 5.15.181 , ≤ 5.15.* (semver)
Unaffected: 6.1.135 , ≤ 6.1.* (semver)
Unaffected: 6.6.88 , ≤ 6.6.* (semver)
Unaffected: 6.12.24 , ≤ 6.12.* (semver)
Unaffected: 6.13.12 , ≤ 6.13.* (semver)
Unaffected: 6.14.3 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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Cuando el kernel contiene una gran cantidad de funciones rastreables, el bucle en ftrace_graph_set_hash() puede tardar mucho en ejecutarse. Esto puede activar el mecanismo de vigilancia de bloqueo suave. A\u00f1adir cond_resched() dentro del bucle para que el kernel siga respondiendo incluso al procesar una gran cantidad de funciones. Esto coincide con el cond_resched() utilizado en otras partes del c\u00f3digo que itera sobre todas las funciones rastreables.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"kernel/trace/ftrace.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"b9b0c831bed2682c2e3e9f5420fb6985549ef020\",\"lessThan\":\"e5b4ae6f01d4a510d5725eca7254519a1093920d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b9b0c831bed2682c2e3e9f5420fb6985549ef020\",\"lessThan\":\"618655d54c5f8af5d57b77491d08c0f0ff77d114\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b9b0c831bed2682c2e3e9f5420fb6985549ef020\",\"lessThan\":\"dd38803c9088b848c6b56f4f6d7efc4497bfde61\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b9b0c831bed2682c2e3e9f5420fb6985549ef020\",\"lessThan\":\"8dd7d7280357596ba63dfdb4c1725d9dd24bd42a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b9b0c831bed2682c2e3e9f5420fb6985549ef020\",\"lessThan\":\"5d336ac215e5c76e43ef4bca9ba699835e53e2fd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b9b0c831bed2682c2e3e9f5420fb6985549ef020\",\"lessThan\":\"1fce9574b9d515bcb8a75379a8053e18602424e3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b9b0c831bed2682c2e3e9f5420fb6985549ef020\",\"lessThan\":\"4429535acab750d963fdc3dfcc9e0eee42f4d599\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b9b0c831bed2682c2e3e9f5420fb6985549ef020\",\"lessThan\":\"72be43ff061a889c6ee648a330a42486cafa15a6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b9b0c831bed2682c2e3e9f5420fb6985549ef020\",\"lessThan\":\"42ea22e754ba4f2b86f8760ca27f6f71da2d982c\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"kernel/trace/ftrace.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.11\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.11\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.293\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.237\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.181\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.135\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.88\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.24\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.13.12\",\"lessThanOrEqual\":\"6.13.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.14.3\",\"lessThanOrEqual\":\"6.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.15\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.11\",\"versionEndExcluding\":\"5.4.293\",\"matchCriteriaId\":\"9DF2A23C-4338-44D6-8D5D-4086EC006A48\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.237\",\"matchCriteriaId\":\"0710B81E-E2FA-4E15-8F68-D297EBB4D50D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.181\",\"matchCriteriaId\":\"12331C9E-F601-4EFC-899E-369F98DCC70B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.135\",\"matchCriteriaId\":\"5B9ACE29-7445-4B6F-B761-6367C005E275\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.88\",\"matchCriteriaId\":\"6E5947E5-45E3-462A-829B-382B3B1C61BD\"},{\"vulnerable\":true,\"criteria\":\"c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Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T00:09:59+00:00",
      "cve": "CVE-2025-37940",
      "id": "CVE-2025-37940",
      "initial_release_date": "2025-05-20T00:00:00+00:00",
      "product_status:known_affected": "246",
      "product_status:known_not_affected": "28",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ftrace: Add cond_resched() to ftrace_graph_set_hash()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-37940.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T00:20:59Z",
      "cve": "CVE-2025-37940",
      "id": "CVE-2025-37940",
      "initial_release_date": "2025-05-21T00:46:41Z",
      "product_status:known_affected": "305",
      "product_status:known_not_affected": "36",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-37940",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-37940.json",
      "version": "17"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.