CVE-2021-47373

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Fix potential VPE leak on error In its_vpe_irq_domain_alloc, when its_vpe_init() returns an error, there is an off-by-one in the number of VPEs to be freed. Fix it by simply passing the number of VPEs allocated, which is the index of the loop iterating over the VPEs. [maz: fixed commit message]

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/280bef512933b2dda01d681d8cbe499b98fc5bdd	Patch
https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b	Patch
https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7	Patch
https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0	Patch
https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b	Patch
https://git.kernel.org/stable/c/e0c1c2e5da19685a20557a50f10c6aa4fa26aa84	Patch
https://git.kernel.org/stable/c/280bef512933b2dda01d681d8cbe499b98fc5bdd	Patch
https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b	Patch
https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7	Patch
https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0	Patch
https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b	Patch
https://git.kernel.org/stable/c/e0c1c2e5da19685a20557a50f10c6aa4fa26aa84	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc2::::::

History

No history.

Information

Published : 2024-05-21 15:15

Updated : 2024-12-26 17:57

NVD link : CVE-2021-47373

Mitre link : CVE-2021-47373

CVE.ORG link : CVE-2021-47373

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-193

Off-by-one Error

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En its_vpe_irq_domain_alloc, cuando its_vpe_init() devuelve un error, hay un error de uno en uno en el n\u00famero de VPE. para ser liberado. Solucionelo simplemente pasando el n\u00famero de VPE asignados, que es el \u00edndice del bucle que se itera sobre los VPE. [maz: mensaje de confirmaci\u00f3n fijo]"}], "lastModified": "2024-12-26T17:57:35.547", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C9BA2B8D-3D51-420A-8307-752B0F4519FB", "versionEndExcluding": "4.14.249", "versionStartIncluding": "4.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "21C23429-F802-4256-B3C2-9EEA76AC11FF", "versionEndExcluding": "4.19.209", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "87771E47-210D-48FA-95BC-48A86225B30F", "versionEndExcluding": "5.4.150", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A2A50090-4483-4F44-9147-BF0B012FBF7E", "versionEndExcluding": "5.10.70", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1B31D6C1-A751-438D-906B-0C56B789D498", "versionEndExcluding": "5.14.9", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}