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ubuntucveUbuntu.comUB:CVE-2021-47064
HistoryFeb 29, 2024 - 12:00 a.m.

CVE-2021-47064

2024-02-2900:00:00
ubuntu.com
ubuntu.com
6
linux kernel
vulnerability
dma mapping leak
mt76
mcu command frames

AI Score

6.5

Confidence

Low

EPSS

0

Percentile

15.5%

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

Notes

Author Note
rodrigo-zaiden similar issue with CVE-2021-47032 and CVE-2021-47033, should probably be fixed together.

AI Score

6.5

Confidence

Low

EPSS

0

Percentile

15.5%