CVE-2024-38384 (GCVE-0-2024-38384)
Vulnerability from cvelistv5 – Published: 2024-06-24 13:50 – Updated: 2026-08-05 11:32
VLAI
EPSS
VEX
Title
blk-cgroup: fix list corruption from reorder of WRITE ->lqueued
Summary
In the Linux kernel, the following vulnerability has been resolved:
blk-cgroup: fix list corruption from reorder of WRITE ->lqueued
__blkcg_rstat_flush() can be run anytime, especially when blk_cgroup_bio_start
is being executed.
If WRITE of `->lqueued` is re-ordered with READ of 'bisc->lnode.next' in
the loop of __blkcg_rstat_flush(), `next_bisc` can be assigned with one
stat instance being added in blk_cgroup_bio_start(), then the local
list in __blkcg_rstat_flush() could be corrupted.
Fix the issue by adding one barrier.
Severity
7.8 (High)
8.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-25 13:27 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
10 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
3b8cc6298724021da845f2f9fd7dd4b6829a6817 , < 714e59b5456e4d6e4295a9968c564abe193f461c
(git)
Affected: 3b8cc6298724021da845f2f9fd7dd4b6829a6817 , < 785298ab6b802afa75089239266b6bbea590809c (git) Affected: 3b8cc6298724021da845f2f9fd7dd4b6829a6817 , < d0aac2363549e12cc79b8e285f13d5a9f42fd08e (git) |
guessed | |
| Linux | Linux |
Affected:
6.2
Unaffected: 0 , < 6.2 (semver) Unaffected: 6.6.33 , ≤ 6.6.* (semver) Unaffected: 6.9.4 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
guessed | |
| linux | linux_kernel |
Affected:
3b8cc6298724 , < 714e59b5456e
(custom)
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Affected:
3b8cc6298724 , < 785298ab6b80
(custom)
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Affected:
3b8cc6298724 , < d0aac2363549
(custom)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Affected:
6.2
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Unaffected:
0 , < 6.2
(custom)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Unaffected:
6.6.33 , ≤ 6.7
(custom)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Unaffected:
6.9.4 , ≤ 6.10
(custom)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Unaffected:
6.10-rc1
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
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"value": "AV:L - The vulnerable code is reached through local block-I/O submission (`submit_bio_noacct_nocheck` \u2192 `blk_cgroup_bio_start`) and local cgroupfs reads of `io.stat`; there is no network-facing path into blk-cgroup stat accounting.\nAC:L - The attacker drives both sides of the race \u2014 continuous bio submission on multiple CPUs plus a tight loop reading `io.stat` (or removing cgroups) to force `blkcg_rstat_flush` \u2014 and can retry indefinitely with no cost until the reorder window is hit on any weakly-ordered CPU.\nPR:L - No capability check exists on either code path; any unprivileged local user performing ordinary file I/O inside a non-root cgroup-v2 blkcg (the default for every systemd user session and every container) can reach both `blk_cgroup_bio_start()` and, via their delegated subtree\u0027s `io.stat`, the flush side.\nUI:N - The attacker triggers everything from its own processes \u2014 I/O submission and stat flushing \u2014 with no action required from any other user or administrator.\nS:U - The corruption is confined to kernel block-cgroup structures within the same security authority; no VM, IOMMU, or hypervisor boundary is crossed.\nC:H - Corruption of the lockless list defeats the `__blkg_release()` flush that guarantees no `blkg_iostat_set` is queued before `free_percpu(blkg-\u003eiostat_cpu)`, leaving the list pointing into freed per-CPU memory that is then dereferenced (`bisc-\u003eblkg`, `blkg-\u003eparent`) \u2014 a use-after-free read that can be leveraged for kernel memory disclosure.\nI:H - The same stale-pointer condition makes `blkcg_iostat_update()` write through a `blkg` pointer read out of freed memory, giving an attacker-influenceable write primitive; the llist `next` pointers themselves are also corrupted with attacker-timed values.\nA:H - Re-adding a node that is still linked creates a cycle in the lockless list, so the next `__blkcg_rstat_flush()` loops forever while holding the `blkg_stat_lock` raw spinlock with interrupts disabled under `cgroup_rstat_lock` \u2014 a hard lockup / kernel panic that wedges the whole system."
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"id": "CVE-2024-38384",
"lastModified": "2024-11-21T09:25:33.487",
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Si la ESCRITURA de `-\u0026gt;lqueued` se reordena con la READ de \u0027bisc-\u0026gt;lnode.next\u0027 en el bucle de __blkcg_rstat_flush(), se puede asignar `next_bisc` agregando una instancia de estad\u00edstica en blk_cgroup_bio_start(), entonces el La lista local en __blkcg_rstat_flush() podr\u00eda estar da\u00f1ada. Solucione el problema agregando una barrera.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"block/blk-cgroup.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3b8cc6298724021da845f2f9fd7dd4b6829a6817\",\"lessThan\":\"714e59b5456e4d6e4295a9968c564abe193f461c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3b8cc6298724021da845f2f9fd7dd4b6829a6817\",\"lessThan\":\"785298ab6b802afa75089239266b6bbea590809c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3b8cc6298724021da845f2f9fd7dd4b6829a6817\",\"lessThan\":\"d0aac2363549e12cc79b8e285f13d5a9f42fd08e\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"block/blk-cgroup.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.2\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.2\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.33\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.9.4\",\"lessThanOrEqual\":\"6.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"affectedData\":[{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"3b8cc6298724\",\"lessThan\":\"714e59b5456e\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"3b8cc6298724\",\"lessThan\":\"785298ab6b80\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"3b8cc6298724\",\"lessThan\":\"d0aac2363549\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"6.2\",\"status\":\"affected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"0\",\"lessThan\":\"6.2\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"6.6.33\",\"lessThanOrEqual\":\"6.7\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"6.9.4\",\"lessThanOrEqual\":\"6.10\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"6.10-rc1\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.4,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.5,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-06-25T13:27:38.979262Z\",\"id\":\"CVE-2024-38384\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA 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"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2025-11-21T14:39:25+00:00",
"cve": "CVE-2024-38384",
"id": "CVE-2024-38384",
"initial_release_date": "2024-06-24T00:00:00+00:00",
"product_status:fixed": "1295",
"product_status:known_affected": "198",
"product_status:known_not_affected": "67",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: blk-cgroup: fix list corruption from reorder of WRITE -\u0026gt;lqueued",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-38384.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-30T02:34:28Z",
"cve": "CVE-2024-38384",
"id": "CVE-2024-38384",
"initial_release_date": "2024-06-25T23:17:04Z",
"product_status:known_affected": "394",
"product_status:known_not_affected": "345",
"product_status:recommended": "353",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-38384",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-38384.json",
"version": "68"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/714e59b5456e4d6e4295a9968c564abe193f461c\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/785298ab6b802afa75089239266b6bbea590809c\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/d0aac2363549e12cc79b8e285f13d5a9f42fd08e\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T04:04:25.142Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.4, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-38384\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-25T13:27:38.979262Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"3b8cc6298724\", \"lessThan\": \"714e59b5456e\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"3b8cc6298724\", \"lessThan\": \"785298ab6b80\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": 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\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3b8cc6298724\", \"lessThan\": \"714e59b5456e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3b8cc6298724\", \"lessThan\": \"785298ab6b80\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3b8cc6298724\", \"lessThan\": \"d0aac2363549\", \"versionType\": \"git\"}], \"programFiles\": [\"block/blk-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\": \"6.2\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.2\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.6.33\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"block/blk-cgroup.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/714e59b5456e4d6e4295a9968c564abe193f461c\"}, {\"url\": \"https://git.kernel.org/stable/c/785298ab6b802afa75089239266b6bbea590809c\"}, {\"url\": \"https://git.kernel.org/stable/c/d0aac2363549e12cc79b8e285f13d5a9f42fd08e\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nblk-cgroup: fix list corruption from reorder of WRITE -\u003elqueued\\n\\n__blkcg_rstat_flush() can be run anytime, especially when blk_cgroup_bio_start\\nis being executed.\\n\\nIf WRITE of `-\u003elqueued` is re-ordered with READ of \u0027bisc-\u003elnode.next\u0027 in\\nthe loop of __blkcg_rstat_flush(), `next_bisc` can be assigned with one\\nstat instance being added in blk_cgroup_bio_start(), then the local\\nlist in __blkcg_rstat_flush() could be corrupted.\\n\\nFix the issue by adding one barrier.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-05T09:29:23.958Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-38384\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-05T09:29:23.958Z\", \"dateReserved\": \"2024-06-21T11:16:40.612Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-24T13:50:51.033Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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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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