CVE-2024-43856 (GCVE-0-2024-43856)
Vulnerability from cvelistv5 – Published: 2024-08-17 09:24 – Updated: 2026-08-05 11:36
VLAI
EPSS
VEX
Title
dma: fix call order in dmam_free_coherent
Summary
In the Linux kernel, the following vulnerability has been resolved:
dma: fix call order in dmam_free_coherent
dmam_free_coherent() frees a DMA allocation, which makes the
freed vaddr available for reuse, then calls devres_destroy()
to remove and free the data structure used to track the DMA
allocation. Between the two calls, it is possible for a
concurrent task to make an allocation with the same vaddr
and add it to the devres list.
If this happens, there will be two entries in the devres list
with the same vaddr and devres_destroy() can free the wrong
entry, triggering the WARN_ON() in dmam_match.
Fix by destroying the devres entry before freeing the DMA
allocation.
kokonut //net/encryption
http://sponge2/b9145fe6-0f72-4325-ac2f-a84d81075b03
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:07 UTC
Assigner
References
11 references
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < fe2d246080f035e0af5793cb79067ba125e4fb63
(git)
Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 2f7bbdc744f2e7051d1cb47c8e082162df1923c9 (git) Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 257193083e8f43907e99ea633820fc2b3bcd24c7 (git) Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 87b34c8c94e29fa01d744e5147697f592998d954 (git) Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < f993a4baf6b622232e4c190d34c220179e5d61eb (git) Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 1fe97f68fce1ba24bf823bfb0eb0956003473130 (git) Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 22094f5f52e7bc16c5bf9613365049383650b02e (git) Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 28e8b7406d3a1f5329a03aa25a43aa28e087cb20 (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.21
Unaffected: 0 , < 2.6.21 (semver) Unaffected: 4.19.320 , ≤ 4.19.* (semver) Unaffected: 5.4.282 , ≤ 5.4.* (semver) Unaffected: 5.10.224 , ≤ 5.10.* (semver) Unaffected: 5.15.165 , ≤ 5.15.* (semver) Unaffected: 6.1.103 , ≤ 6.1.* (semver) Unaffected: 6.6.44 , ≤ 6.6.* (semver) Unaffected: 6.10.3 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
guessed |
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"nvd": "{\"cve\":{\"id\":\"CVE-2024-43856\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-17T10:15:10.613\",\"lastModified\":\"2026-08-04T11:19:55.387\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndma: fix call order in dmam_free_coherent\\n\\ndmam_free_coherent() frees a DMA allocation, which makes the\\nfreed vaddr available for reuse, then calls devres_destroy()\\nto remove and free the data structure used to track the DMA\\nallocation. Between the two calls, it is possible for a\\nconcurrent task to make an allocation with the same vaddr\\nand add it to the devres list.\\n\\nIf this happens, there will be two entries in the devres list\\nwith the same vaddr and devres_destroy() can free the wrong\\nentry, triggering the WARN_ON() in dmam_match.\\n\\nFix by destroying the devres entry before freeing the DMA\\nallocation.\\n\\n kokonut //net/encryption\\n http://sponge2/b9145fe6-0f72-4325-ac2f-a84d81075b03\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: dma: corrige el orden de llamadas en dmam_free_coherent dmam_free_coherent() libera una asignaci\u00f3n de DMA, lo que hace que el vaddr liberado est\u00e9 disponible para su reutilizaci\u00f3n, luego llama a devres_destroy() para eliminar y liberar la estructura de datos utilizada para realizar un seguimiento de la asignaci\u00f3n de DMA. Entre las dos llamadas, es posible que una tarea simult\u00e1nea realice una asignaci\u00f3n con el mismo vaddr y lo agregue a la lista de devres. Si esto sucede, habr\u00e1 dos entradas en la lista devres con el mismo vaddr y devres_destroy() puede liberar la entrada incorrecta, activando WARN_ON() en dmam_match. Para solucionarlo, destruya la entrada devres antes de liberar la asignaci\u00f3n de DMA. kokonut //net/encryption http://sponge2/b9145fe6-0f72-4325-ac2f-a84d81075b03\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"kernel/dma/mapping.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"9ac7849e35f705830f7b016ff272b0ff1f7ff759\",\"lessThan\":\"fe2d246080f035e0af5793cb79067ba125e4fb63\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"9ac7849e35f705830f7b016ff272b0ff1f7ff759\",\"lessThan\":\"2f7bbdc744f2e7051d1cb47c8e082162df1923c9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"9ac7849e35f705830f7b016ff272b0ff1f7ff759\",\"lessThan\":\"257193083e8f43907e99ea633820fc2b3bcd24c7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"9ac7849e35f705830f7b016ff272b0ff1f7ff759\",\"lessThan\":\"87b34c8c94e29fa01d744e5147697f592998d954\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"9ac7849e35f705830f7b016ff272b0ff1f7ff759\",\"lessThan\":\"f993a4baf6b622232e4c190d34c220179e5d61eb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"9ac7849e35f705830f7b016ff272b0ff1f7ff759\",\"lessThan\":\"1fe97f68fce1ba24bf823bfb0eb0956003473130\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"9ac7849e35f705830f7b016ff272b0ff1f7ff759\",\"lessThan\":\"22094f5f52e7bc16c5bf9613365049383650b02e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"9ac7849e35f705830f7b016ff272b0ff1f7ff759\",\"lessThan\":\"28e8b7406d3a1f5329a03aa25a43aa28e087cb20\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"kernel/dma/mapping.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.21\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.21\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.320\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.282\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.224\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.165\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.103\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.44\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10.3\",\"lessThanOrEqual\":\"6.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"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\":\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-10T16:07:08.178694Z\",\"id\":\"CVE-2024-43856\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-770\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.21\",\"versionEndExcluding\":\"4.19.320\",\"matchCriteriaId\":\"482B11C0-6B3C-4F07-817D-E7E181A88878\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.282\",\"matchCriteriaId\":\"A8961D98-9ACF-4188-BA88-44038B14BC28\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.224\",\"matchCriteriaId\":\"5CCEDF13-293D-4E64-B501-4409D0365AFE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.165\",\"matchCriteriaId\":\"B4E2B568-3171-41DE-B519-F2B1A3600D94\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.103\",\"matchCriteriaId\":\"E45EAC72-8329-4F99-8276-86AF9BB3496A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.44\",\"matchCriteriaId\":\"CC912330-6B41-4C6B-99AF-F3857FBACB6A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.10.3\",\"matchCriteriaId\":\"92D388F2-1EAF-4CFA-AC06-5B26D762EA7D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1fe97f68fce1ba24bf823bfb0eb0956003473130\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/22094f5f52e7bc16c5bf9613365049383650b02e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/257193083e8f43907e99ea633820fc2b3bcd24c7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/28e8b7406d3a1f5329a03aa25a43aa28e087cb20\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2f7bbdc744f2e7051d1cb47c8e082162df1923c9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/87b34c8c94e29fa01d744e5147697f592998d954\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f993a4baf6b622232e4c190d34c220179e5d61eb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fe2d246080f035e0af5793cb79067ba125e4fb63\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"}]}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-08-04T18:13:04+00:00",
"cve": "CVE-2024-43856",
"id": "CVE-2024-43856",
"initial_release_date": "2024-08-17T00:00:00+00:00",
"product_status:fixed": "280",
"product_status:known_affected": "112",
"product_status:known_not_affected": "8",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: dma: fix call order in dmam_free_coherent",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-43856.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-31T13:53:53Z",
"cve": "CVE-2024-43856",
"id": "CVE-2024-43856",
"initial_release_date": "2024-08-18T02:01:20Z",
"product_status:known_affected": "590",
"product_status:known_not_affected": "12",
"product_status:recommended": "727",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-43856",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-43856.json",
"version": "69"
},
"vulnrichment": {
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available for reuse, then calls devres_destroy()\\nto remove and free the data structure used to track the DMA\\nallocation. Between the two calls, it is possible for a\\nconcurrent task to make an allocation with the same vaddr\\nand add it to the devres list.\\n\\nIf this happens, there will be two entries in the devres list\\nwith the same vaddr and devres_destroy() can free the wrong\\nentry, triggering the WARN_ON() in dmam_match.\\n\\nFix by destroying the devres entry before freeing the DMA\\nallocation.\\n\\n kokonut //net/encryption\\n http://sponge2/b9145fe6-0f72-4325-ac2f-a84d81075b03\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.320\", \"versionStartIncluding\": \"2.6.21\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.282\", \"versionStartIncluding\": \"2.6.21\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.224\", \"versionStartIncluding\": \"2.6.21\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.165\", \"versionStartIncluding\": \"2.6.21\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.103\", \"versionStartIncluding\": \"2.6.21\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.44\", \"versionStartIncluding\": \"2.6.21\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.3\", \"versionStartIncluding\": \"2.6.21\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11\", \"versionStartIncluding\": \"2.6.21\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:31:08.585Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-43856\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:31:08.585Z\", \"dateReserved\": \"2024-08-17T09:11:59.278Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-17T09:24:26.560Z\", \"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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