CVE-2024-38618 (GCVE-0-2024-38618)

Vulnerability from cvelistv5 – Published: 2024-06-19 13:56 – Updated: 2026-01-05 10:36
VLAI?
Title
ALSA: timer: Set lower bound of start tick time
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Set lower bound of start tick time Currently ALSA timer doesn't have the lower limit of the start tick time, and it allows a very small size, e.g. 1 tick with 1ns resolution for hrtimer. Such a situation may lead to an unexpected RCU stall, where the callback repeatedly queuing the expire update, as reported by fuzzer. This patch introduces a sanity check of the timer start tick time, so that the system returns an error when a too small start size is set. As of this patch, the lower limit is hard-coded to 100us, which is small enough but can still work somehow.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: bbaf5e97337287479eb78dbc3822d9560bbfd2e2 , < 68396c825c43664b20a3a1ba546844deb2b4e48f (git)
Affected: bbaf5e97337287479eb78dbc3822d9560bbfd2e2 , < 74bfb8d90f2601718ae203faf45a196844c01fa1 (git)
Affected: bbaf5e97337287479eb78dbc3822d9560bbfd2e2 , < bdd0aa055b8ec7e24bbc19513f3231958741d0ab (git)
Affected: bbaf5e97337287479eb78dbc3822d9560bbfd2e2 , < 83f0ba8592b9e258fd80ac6486510ab1dcd7ad6e (git)
Affected: bbaf5e97337287479eb78dbc3822d9560bbfd2e2 , < ceab795a67dd28dd942d0d8bba648c6c0f7a044b (git)
Affected: bbaf5e97337287479eb78dbc3822d9560bbfd2e2 , < 2c95241ac5fc90c929d6c0c023e84bf0d30e84c3 (git)
Affected: bbaf5e97337287479eb78dbc3822d9560bbfd2e2 , < abb1ad69d98cf1ff25bb14fff0e7c3f66239e1cd (git)
Affected: bbaf5e97337287479eb78dbc3822d9560bbfd2e2 , < 4a63bd179fa8d3fcc44a0d9d71d941ddd62f0c4e (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.29
Unaffected: 0 , < 2.6.29 (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: 6.9.3 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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Such a situation may lead to an unexpected RCU stall,\\nwhere  the callback repeatedly queuing the expire update, as reported\\nby fuzzer.\\n\\nThis patch introduces a sanity check of the timer start tick time, so\\nthat the system returns an error when a too small start size is set.\\nAs of this patch, the lower limit is hard-coded to 100us, which is\\nsmall enough but can still work somehow.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.316\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.278\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.219\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.161\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.93\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.33\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.3\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"2.6.29\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:36:42.191Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-38618\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:36:42.191Z\", \"dateReserved\": \"2024-06-18T19:36:34.945Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-19T13:56:17.422Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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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.