CVE-2022-49646

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  3. CVE-2022-49646

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

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

I

n the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix queue selection for mesh/OCB interfaces When using iTXQ, the code assumes that there is only one vif queue for broadcast packets, using the BE queue. Allowing non-BE queue marking violates that assumption and txq->ac == skb_queue_mapping is no longer guaranteed. This can cause issues with queue handling in the driver and also causes issues with the recent ATF change, resulting in an AQL underflow warning.

References
Link Resource
https://git.kernel.org/stable/c/41ecab279a70dced9005f4d55fa0fcde8938603f Patch
https://git.kernel.org/stable/c/444be5a02b77f3b7a8ac9c1a0b074fbb3bd89cd0 Patch
https://git.kernel.org/stable/c/50e2ab39291947b6c6c7025cf01707c270fcde59 Patch
https://git.kernel.org/stable/c/5a9df31017999197b6e60535940f2f2fe1bd3b0d Patch
https://git.kernel.org/stable/c/e013ea2a51a94b903b396a8dff531a07d470335d 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:5.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*
History

23 Oct 2025, 12:09

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: mac80211: se corrige la selección de cola para interfaces de malla/OCB Al usar iTXQ, el código supone que solo hay una cola vif para paquetes de difusión, utilizando la cola BE. Permitir el marcado de colas que no sean BE viola esa suposición y txq->ac == skb_queue_mapping ya no está garantizado. Esto puede causar problemas con la gestión de colas en el controlador y también causa problemas con el cambio reciente de ATF, lo que resulta en una advertencia de desbordamiento de AQL.
First Time Linux linux Kernel
Linux
CWE NVD-CWE-noinfo
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/41ecab279a70dced9005f4d55fa0fcde8938603f - () https://git.kernel.org/stable/c/41ecab279a70dced9005f4d55fa0fcde8938603f - Patch
References () https://git.kernel.org/stable/c/444be5a02b77f3b7a8ac9c1a0b074fbb3bd89cd0 - () https://git.kernel.org/stable/c/444be5a02b77f3b7a8ac9c1a0b074fbb3bd89cd0 - Patch
References () https://git.kernel.org/stable/c/50e2ab39291947b6c6c7025cf01707c270fcde59 - () https://git.kernel.org/stable/c/50e2ab39291947b6c6c7025cf01707c270fcde59 - Patch
References () https://git.kernel.org/stable/c/5a9df31017999197b6e60535940f2f2fe1bd3b0d - () https://git.kernel.org/stable/c/5a9df31017999197b6e60535940f2f2fe1bd3b0d - Patch
References () https://git.kernel.org/stable/c/e013ea2a51a94b903b396a8dff531a07d470335d - () https://git.kernel.org/stable/c/e013ea2a51a94b903b396a8dff531a07d470335d - Patch

26 Feb 2025, 07:01

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-26 07:01

Updated : 2025-10-23 12:09

NVD link : CVE-2022-49646

Mitre link : CVE-2022-49646

CVE.ORG link : CVE-2022-49646

JSON object : View

Products Affected

linux

CWE
NVD-CWE-noinfo