CVE-2022-49411 (GCVE-0-2022-49411)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:12 – Updated: 2026-08-05 08:55
VLAI
Title
bfq: Make sure bfqg for which we are queueing requests is online
Summary
In the Linux kernel, the following vulnerability has been resolved: bfq: Make sure bfqg for which we are queueing requests is online Bios queued into BFQ IO scheduler can be associated with a cgroup that was already offlined. This may then cause insertion of this bfq_group into a service tree. But this bfq_group will get freed as soon as last bio associated with it is completed leading to use after free issues for service tree users. Fix the problem by making sure we always operate on online bfq_group. If the bfq_group associated with the bio is not online, we pick the first online parent.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < ccddf8cd411c1800863ed357064e56ceffd356bb (git)
Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < 51f724bffa3403a5236597e6b75df7329c1ec6e9 (git)
Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < 6ee0868b0c3ccead5907685fcdcdd0c08dfe4b0b (git)
Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < 97bd6c56bdcb41079e488e31df56809e3b2ce628 (git)
Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < 7781c38552e6cc54ed8e9040279561340516b881 (git)
Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < 075a53b78b815301f8d3dd1ee2cd99554e34f0dd (git)
Create a notification for this product.
Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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If the bfq_group associated with the bio is not\\nonline, we pick the first online parent.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bfq: Aseg\u00farese de que bfqg para el que estamos poniendo en cola las solicitudes est\u00e9 en l\u00ednea. Las BIOS en cola en el programador de E/S de BFQ se pueden asociar con un cgroup que ya estaba fuera de l\u00ednea. Esto puede provocar la inserci\u00f3n de este bfq_group en un \u00e1rbol de servicios. Pero este bfq_group se liberar\u00e1 tan pronto como se complete la \u00faltima bio asociada con \u00e9l, lo que genera problemas de use-after-free para los usuarios del \u00e1rbol de servicios. Solucione el problema asegur\u00e1ndose de que siempre operamos en bfq_group en l\u00ednea. 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    "redhat_vex": {
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: bfq: Make sure bfqg for which we are queueing requests is online",
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      "product_status:recommended": "341",
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      "status": "interim",
      "title": "SUSE CVE CVE-2022-49411",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49411.json",
      "version": "57"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49411\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-03-05T21:14:17.027775Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-03-05T21:14:18.508Z\"}}], \"cna\": {\"title\": \"bfq: Make sure bfqg for which we are queueing requests is online\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"e21b7a0b988772e82e7147e1c659a5afe2ae003c\", \"lessThan\": \"ccddf8cd411c1800863ed357064e56ceffd356bb\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e21b7a0b988772e82e7147e1c659a5afe2ae003c\", \"lessThan\": \"51f724bffa3403a5236597e6b75df7329c1ec6e9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e21b7a0b988772e82e7147e1c659a5afe2ae003c\", \"lessThan\": \"6ee0868b0c3ccead5907685fcdcdd0c08dfe4b0b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e21b7a0b988772e82e7147e1c659a5afe2ae003c\", \"lessThan\": \"97bd6c56bdcb41079e488e31df56809e3b2ce628\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e21b7a0b988772e82e7147e1c659a5afe2ae003c\", \"lessThan\": \"7781c38552e6cc54ed8e9040279561340516b881\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e21b7a0b988772e82e7147e1c659a5afe2ae003c\", \"lessThan\": \"075a53b78b815301f8d3dd1ee2cd99554e34f0dd\", \"versionType\": \"git\"}], \"programFiles\": [\"block/bfq-cgroup.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.12\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.12\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.198\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.121\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.46\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.14\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.18.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"block/bfq-cgroup.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/ccddf8cd411c1800863ed357064e56ceffd356bb\"}, {\"url\": \"https://git.kernel.org/stable/c/51f724bffa3403a5236597e6b75df7329c1ec6e9\"}, {\"url\": \"https://git.kernel.org/stable/c/6ee0868b0c3ccead5907685fcdcdd0c08dfe4b0b\"}, {\"url\": \"https://git.kernel.org/stable/c/97bd6c56bdcb41079e488e31df56809e3b2ce628\"}, {\"url\": \"https://git.kernel.org/stable/c/7781c38552e6cc54ed8e9040279561340516b881\"}, {\"url\": \"https://git.kernel.org/stable/c/075a53b78b815301f8d3dd1ee2cd99554e34f0dd\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbfq: Make sure bfqg for which we are queueing requests is online\\n\\nBios queued into BFQ IO scheduler can be associated with a cgroup that\\nwas already offlined. This may then cause insertion of this bfq_group\\ninto a service tree. But this bfq_group will get freed as soon as last\\nbio associated with it is completed leading to use after free issues for\\nservice tree users. Fix the problem by making sure we always operate on\\nonline bfq_group. If the bfq_group associated with the bio is not\\nonline, we pick the first online parent.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.198\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.121\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.46\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.14\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18.3\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19\", \"versionStartIncluding\": \"4.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T18:59:14.605Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49411\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T18:59:14.605Z\", \"dateReserved\": \"2025-02-26T02:08:31.567Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T02:12:33.628Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





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.