CVE-2024-36947

In the Linux kernel, the following vulnerability has been resolved: qibfs: fix dentry leak simple_recursive_removal() drops the pinning references to all positives in subtree. For the cases when its argument has been kept alive by the pinning alone that's exactly the right thing to do, but here the argument comes from dcache lookup, that needs to be balanced by explicit dput(). Fucked-up-by: Al Viro <[email protected]>

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/02ee394a5d899d9bd2f0759382e9481cab6166f8	Patch
https://git.kernel.org/stable/c/24dd9b08df718f20ccf2dd1519909fefd8c233ee	Patch
https://git.kernel.org/stable/c/aa23317d0268b309bb3f0801ddd0d61813ff5afb	Patch
https://git.kernel.org/stable/c/bd8f78c71defbcb7a9ed331e7f287507df972b00	Patch
https://git.kernel.org/stable/c/db71ca93259dd1078bcfea3afafde2143cfc2da7	Patch
https://git.kernel.org/stable/c/02ee394a5d899d9bd2f0759382e9481cab6166f8	Patch
https://git.kernel.org/stable/c/24dd9b08df718f20ccf2dd1519909fefd8c233ee	Patch
https://git.kernel.org/stable/c/aa23317d0268b309bb3f0801ddd0d61813ff5afb	Patch
https://git.kernel.org/stable/c/bd8f78c71defbcb7a9ed331e7f287507df972b00	Patch
https://git.kernel.org/stable/c/db71ca93259dd1078bcfea3afafde2143cfc2da7	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:6.9:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc6::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc7::::::

History

No history.

Information

Published : 2024-05-30 16:15

Updated : 2025-09-17 22:21

NVD link : CVE-2024-36947

Mitre link : CVE-2024-36947

CVE.ORG link : CVE-2024-36947

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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For the cases when its argument has been kept alive by\nthe pinning alone that's exactly the right thing to do, but here\nthe argument comes from dcache lookup, that needs to be balanced by\nexplicit dput().\n\nFucked-up-by: Al Viro <[email protected]>"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: qibfs: arreglar la fuga de dentry simple_recursive_removal() elimina las referencias de fijaci\u00f3n a todos los positivos en el sub\u00e1rbol. Para los casos en los que su argumento se ha mantenido vivo solo mediante la fijaci\u00f3n, eso es exactamente lo correcto, pero aqu\u00ed el argumento proviene de la b\u00fasqueda de dcache, que debe equilibrarse con dput() expl\u00edcito. 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