CVE-2024-26758 (GCVE-0-2024-26758)
Vulnerability from cvelistv5 – Published: 2024-04-03 17:00 – Updated: 2026-05-11 20:03
VLAI
EPSS
VEX
Title
md: Don't ignore suspended array in md_check_recovery()
Summary
In the Linux kernel, the following vulnerability has been resolved:
md: Don't ignore suspended array in md_check_recovery()
mddev_suspend() never stop sync_thread, hence it doesn't make sense to
ignore suspended array in md_check_recovery(), which might cause
sync_thread can't be unregistered.
After commit f52f5c71f3d4 ("md: fix stopping sync thread"), following
hang can be triggered by test shell/integrity-caching.sh:
1) suspend the array:
raid_postsuspend
mddev_suspend
2) stop the array:
raid_dtr
md_stop
__md_stop_writes
stop_sync_thread
set_bit(MD_RECOVERY_INTR, &mddev->recovery);
md_wakeup_thread_directly(mddev->sync_thread);
wait_event(..., !test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
3) sync thread done:
md_do_sync
set_bit(MD_RECOVERY_DONE, &mddev->recovery);
md_wakeup_thread(mddev->thread);
4) daemon thread can't unregister sync thread:
md_check_recovery
if (mddev->suspended)
return; -> return directly
md_read_sync_thread
clear_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
-> MD_RECOVERY_RUNNING can't be cleared, hence step 2 hang;
This problem is not just related to dm-raid, fix it by ignoring
suspended array in md_check_recovery(). And follow up patches will
improve dm-raid better to frozen sync thread during suspend.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-04 15:44 UTC
CWE
- CWE-129 - Improper Validation of Array Index
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
68866e425be2ef2664aa5c691bb3ab789736acf5 , < a55f0d6179a19c6b982e2dc344d58c98647a3be0
(git)
Affected: 68866e425be2ef2664aa5c691bb3ab789736acf5 , < 1baae052cccd08daf9a9d64c3f959d8cdb689757 (git) |
guessed | |
| Linux | Linux |
Affected:
3.0
Unaffected: 0 , < 3.0 (semver) Unaffected: 6.7.7 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix) |
guessed |
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"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/a55f0d6179a19c6b982e2dc344d58c98647a3be0\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/1baae052cccd08daf9a9d64c3f959d8cdb689757\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T00:14:13.281Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-26758\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-04-04T15:44:46.004126Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-129\", \"description\": \"CWE-129 Improper Validation of Array Index\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:22.052Z\"}}], \"cna\": {\"title\": \"md: Don\u0027t ignore suspended array in md_check_recovery()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"68866e425be2ef2664aa5c691bb3ab789736acf5\", \"lessThan\": \"a55f0d6179a19c6b982e2dc344d58c98647a3be0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"68866e425be2ef2664aa5c691bb3ab789736acf5\", \"lessThan\": \"1baae052cccd08daf9a9d64c3f959d8cdb689757\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/md/md.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.0\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.0\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.7.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/md/md.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/a55f0d6179a19c6b982e2dc344d58c98647a3be0\"}, {\"url\": \"https://git.kernel.org/stable/c/1baae052cccd08daf9a9d64c3f959d8cdb689757\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmd: Don\u0027t ignore suspended array in md_check_recovery()\\n\\nmddev_suspend() never stop sync_thread, hence it doesn\u0027t make sense to\\nignore suspended array in md_check_recovery(), which might cause\\nsync_thread can\u0027t be unregistered.\\n\\nAfter commit f52f5c71f3d4 (\\\"md: fix stopping sync thread\\\"), following\\nhang can be triggered by test shell/integrity-caching.sh:\\n\\n1) suspend the array:\\nraid_postsuspend\\n mddev_suspend\\n\\n2) stop the array:\\nraid_dtr\\n md_stop\\n __md_stop_writes\\n stop_sync_thread\\n set_bit(MD_RECOVERY_INTR, \u0026mddev-\u003erecovery);\\n md_wakeup_thread_directly(mddev-\u003esync_thread);\\n wait_event(..., !test_bit(MD_RECOVERY_RUNNING, \u0026mddev-\u003erecovery))\\n\\n3) sync thread done:\\nmd_do_sync\\n set_bit(MD_RECOVERY_DONE, \u0026mddev-\u003erecovery);\\n md_wakeup_thread(mddev-\u003ethread);\\n\\n4) daemon thread can\u0027t unregister sync thread:\\nmd_check_recovery\\n if (mddev-\u003esuspended)\\n return; -\u003e return directly\\n md_read_sync_thread\\n clear_bit(MD_RECOVERY_RUNNING, \u0026mddev-\u003erecovery);\\n -\u003e MD_RECOVERY_RUNNING can\u0027t be cleared, hence step 2 hang;\\n\\nThis problem is not just related to dm-raid, fix it by ignoring\\nsuspended array in md_check_recovery(). And follow up patches will\\nimprove dm-raid better to frozen sync thread during suspend.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.7\", \"versionStartIncluding\": \"3.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"3.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:03:36.328Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-26758\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:03:36.328Z\", \"dateReserved\": \"2024-02-19T14:20:24.170Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-03T17:00:42.448Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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