CVE-2022-48742

In the Linux kernel, the following vulnerability has been resolved: rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink() While looking at one unrelated syzbot bug, I found the replay logic in __rtnl_newlink() to potentially trigger use-after-free. It is better to clear master_dev and m_ops inside the loop, in case we have to replay it.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/2cf180360d66bd657e606c1217e0e668e6faa303	Mailing List Patch
https://git.kernel.org/stable/c/36a9a0aee881940476b254e0352581401b23f210	Mailing List Patch
https://git.kernel.org/stable/c/3bbe2019dd12b8d13671ee6cda055d49637b4c39	Mailing List Patch
https://git.kernel.org/stable/c/7d9211678c0f0624f74cdff36117ab8316697bb8	Mailing List Patch
https://git.kernel.org/stable/c/a01e60a1ec6bef9be471fb7182a33c6d6f124e93	Mailing List Patch
https://git.kernel.org/stable/c/bd43771ee9759dd9dfae946bff190e2c5a120de5	Mailing List Patch
https://git.kernel.org/stable/c/c6f6f2444bdbe0079e41914a35081530d0409963	Mailing List Patch
https://git.kernel.org/stable/c/def5e7070079b2a214b3b1a2fbec623e6fbfe34a	Mailing List Patch
https://git.kernel.org/stable/c/2cf180360d66bd657e606c1217e0e668e6faa303	Mailing List Patch
https://git.kernel.org/stable/c/36a9a0aee881940476b254e0352581401b23f210	Mailing List Patch
https://git.kernel.org/stable/c/3bbe2019dd12b8d13671ee6cda055d49637b4c39	Mailing List Patch
https://git.kernel.org/stable/c/7d9211678c0f0624f74cdff36117ab8316697bb8	Mailing List Patch
https://git.kernel.org/stable/c/a01e60a1ec6bef9be471fb7182a33c6d6f124e93	Mailing List Patch
https://git.kernel.org/stable/c/bd43771ee9759dd9dfae946bff190e2c5a120de5	Mailing List Patch
https://git.kernel.org/stable/c/c6f6f2444bdbe0079e41914a35081530d0409963	Mailing List Patch
https://git.kernel.org/stable/c/def5e7070079b2a214b3b1a2fbec623e6fbfe34a	Mailing List 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::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

21 Nov 2024, 07:33

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/2cf180360d66bd657e606c1217e0e668e6faa303 - Mailing List, Patch~~	() https://git.kernel.org/stable/c/2cf180360d66bd657e606c1217e0e668e6faa303 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/36a9a0aee881940476b254e0352581401b23f210 - Mailing List, Patch~~	() https://git.kernel.org/stable/c/36a9a0aee881940476b254e0352581401b23f210 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/3bbe2019dd12b8d13671ee6cda055d49637b4c39 - Mailing List, Patch~~	() https://git.kernel.org/stable/c/3bbe2019dd12b8d13671ee6cda055d49637b4c39 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/7d9211678c0f0624f74cdff36117ab8316697bb8 - Mailing List, Patch~~	() https://git.kernel.org/stable/c/7d9211678c0f0624f74cdff36117ab8316697bb8 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/a01e60a1ec6bef9be471fb7182a33c6d6f124e93 - Mailing List, Patch~~	() https://git.kernel.org/stable/c/a01e60a1ec6bef9be471fb7182a33c6d6f124e93 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/bd43771ee9759dd9dfae946bff190e2c5a120de5 - Mailing List, Patch~~	() https://git.kernel.org/stable/c/bd43771ee9759dd9dfae946bff190e2c5a120de5 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/c6f6f2444bdbe0079e41914a35081530d0409963 - Mailing List, Patch~~	() https://git.kernel.org/stable/c/c6f6f2444bdbe0079e41914a35081530d0409963 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/def5e7070079b2a214b3b1a2fbec623e6fbfe34a - Mailing List, Patch~~	() https://git.kernel.org/stable/c/def5e7070079b2a214b3b1a2fbec623e6fbfe34a - Mailing List, Patch

20 Aug 2024, 13:44

Type	Values Removed	Values Added
CPE		cpe:2.3:o:linux:linux_kernel::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8
References	~~() https://git.kernel.org/stable/c/2cf180360d66bd657e606c1217e0e668e6faa303 -~~	() https://git.kernel.org/stable/c/2cf180360d66bd657e606c1217e0e668e6faa303 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/36a9a0aee881940476b254e0352581401b23f210 -~~	() https://git.kernel.org/stable/c/36a9a0aee881940476b254e0352581401b23f210 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/3bbe2019dd12b8d13671ee6cda055d49637b4c39 -~~	() https://git.kernel.org/stable/c/3bbe2019dd12b8d13671ee6cda055d49637b4c39 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/7d9211678c0f0624f74cdff36117ab8316697bb8 -~~	() https://git.kernel.org/stable/c/7d9211678c0f0624f74cdff36117ab8316697bb8 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/a01e60a1ec6bef9be471fb7182a33c6d6f124e93 -~~	() https://git.kernel.org/stable/c/a01e60a1ec6bef9be471fb7182a33c6d6f124e93 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/bd43771ee9759dd9dfae946bff190e2c5a120de5 -~~	() https://git.kernel.org/stable/c/bd43771ee9759dd9dfae946bff190e2c5a120de5 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/c6f6f2444bdbe0079e41914a35081530d0409963 -~~	() https://git.kernel.org/stable/c/c6f6f2444bdbe0079e41914a35081530d0409963 - Mailing List, Patch
References	~~() https://git.kernel.org/stable/c/def5e7070079b2a214b3b1a2fbec623e6fbfe34a -~~	() https://git.kernel.org/stable/c/def5e7070079b2a214b3b1a2fbec623e6fbfe34a - Mailing List, Patch
Summary		(es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: rtnetlink: asegúrese de actualizar master_dev/m_ops en __rtnl_newlink() Mientras observaba un error de syzbot no relacionado, encontré la lógica de reproducción en __rtnl_newlink() para activar potencialmente el use-after-free. Es mejor borrar master_dev y m_ops dentro del bucle, en caso de que tengamos que reproducirlo.
First Time		Linux linux Kernel Linux
CWE		CWE-416

20 Jun 2024, 12:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-06-20 12:15

Updated : 2024-11-21 07:33

NVD link : CVE-2022-48742

Mitre link : CVE-2022-48742

CVE.ORG link : CVE-2022-48742

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

7.8 /10