CVE-2024-38663

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from resetting io stat Since commit 3b8cc6298724 ("blk-cgroup: Optimize blkcg_rstat_flush()"), each iostat instance is added to blkcg percpu list, so blkcg_reset_stats() can't reset the stat instance by memset(), otherwise the llist may be corrupted. Fix the issue by only resetting the counter part.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/6da6680632792709cecf2b006f2fe3ca7857e791	Patch
https://git.kernel.org/stable/c/89bb36c72e1951843f9e04dc84412e31fcc849a9	Patch
https://git.kernel.org/stable/c/d4a60298ac34f027a09f8f893fdbd9e06279bb24	Patch
https://git.kernel.org/stable/c/6da6680632792709cecf2b006f2fe3ca7857e791	Patch
https://git.kernel.org/stable/c/89bb36c72e1951843f9e04dc84412e31fcc849a9	Patch
https://git.kernel.org/stable/c/d4a60298ac34f027a09f8f893fdbd9e06279bb24	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

03 Oct 2025, 15:08

Type	Values Removed	Values Added
CWE		NVD-CWE-noinfo
First Time		Linux Linux linux Kernel
CPE		cpe:2.3:o:linux:linux_kernel::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
References	~~() https://git.kernel.org/stable/c/6da6680632792709cecf2b006f2fe3ca7857e791 -~~	() https://git.kernel.org/stable/c/6da6680632792709cecf2b006f2fe3ca7857e791 - Patch
References	~~() https://git.kernel.org/stable/c/89bb36c72e1951843f9e04dc84412e31fcc849a9 -~~	() https://git.kernel.org/stable/c/89bb36c72e1951843f9e04dc84412e31fcc849a9 - Patch
References	~~() https://git.kernel.org/stable/c/d4a60298ac34f027a09f8f893fdbd9e06279bb24 -~~	() https://git.kernel.org/stable/c/d4a60298ac34f027a09f8f893fdbd9e06279bb24 - Patch

Information

Published : 2024-06-24 14:15

Updated : 2025-10-03 15:08

NVD link : CVE-2024-38663

Mitre link : CVE-2024-38663

CVE.ORG link : CVE-2024-38663

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

{"id": "CVE-2024-38663", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"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"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-06-24T14:15:12.630", "references": [{"url": "https://git.kernel.org/stable/c/6da6680632792709cecf2b006f2fe3ca7857e791", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/89bb36c72e1951843f9e04dc84412e31fcc849a9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d4a60298ac34f027a09f8f893fdbd9e06279bb24", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6da6680632792709cecf2b006f2fe3ca7857e791", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/89bb36c72e1951843f9e04dc84412e31fcc849a9", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/d4a60298ac34f027a09f8f893fdbd9e06279bb24", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-cgroup: fix list corruption from resetting io stat\n\nSince commit 3b8cc6298724 (\"blk-cgroup: Optimize blkcg_rstat_flush()\"),\neach iostat instance is added to blkcg percpu list, so blkcg_reset_stats()\ncan't reset the stat instance by memset(), otherwise the llist may be\ncorrupted.\n\nFix the issue by only resetting the counter part."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: blk-cgroup: corrige la corrupci\u00f3n de la lista al restablecer io stat Desde el commit 3b8cc6298724 (\"blk-cgroup: Optimizar blkcg_rstat_flush()\"), cada instancia de iostat se agrega a la lista de percpu de blkcg, por lo que blkcg_reset_stats() no puede restablecer la instancia de estad\u00edsticas mediante memset(); de lo contrario, la lista puede estar da\u00f1ada. Solucione el problema reiniciando solo la contraparte."}], "lastModified": "2025-10-03T15:08:59.420", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FCE796DF-3B50-4DC6-BAE5-95271068FC9E", "versionEndExcluding": "6.6.33", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "991B9791-966A-4D18-9E8D-A8AB128E5627", "versionEndExcluding": "6.9.4", "versionStartIncluding": "6.7"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}