CVE-2021-47064
Medium
Description
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
SeverityMedium
CVSS5.3
Exploit probability—
Product
Linux Kernel
PublishedFeb 29, 2024
First seenFeb 29, 2024
How to fix
Update
- linux linux_kernel5.10.37, 5.11.21, 5.12.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.10 ≤ v < 5.10.37, 5.11 ≤ v < 5.11.21, 5.12 ≤ v < 5.12.4 | 5.10.37, 5.11.21, 5.12.4 |
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