CVE-2021-47064

mt76: fix potential DMA mapping leak

CVSS 5.3 MEDIUMEPSS 0.8%

Vexday Risk Score

13Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 5.3EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

29 fev 2024Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

In the Linux kernel, the following vulnerability has been resolved: mt76: fix potential DMA mapping leak With buf uninitialized in mt76_dma_tx_queue_skb_raw, its field skip_unmap could potentially inherit a non-zero value from stack garbage. If this happens, it will cause DMA mappings for MCU command frames to not be unmapped after completion

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Produtos afetados

Linux · Linux

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Referências

https://git.kernel.org/stable/c/91b9548d413fda488ea853cd1b9f59b572db3a0c https://git.kernel.org/stable/c/9b68ce2856dadc0e1cb6fd21fbeb850da49efd08 https://git.kernel.org/stable/c/9fa26701cd1fc4d932d431971efc5746325bdfce https://git.kernel.org/stable/c/b4403cee6400c5f679e9c4a82b91d61aa961eccf