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CVE-2021-47064

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CVE-2021-47064

Published: Feb 29, 2024

Modified: May 11, 2026

PUBLISHED

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

VendorProductVersions

Linux

Linux

affected
27d5c528a7ca08dcd44877fdd9fc08b76630bf77 - < 9fa26701cd1fc4d932d431971efc5746325bdfce
affected
27d5c528a7ca08dcd44877fdd9fc08b76630bf77 - < 9b68ce2856dadc0e1cb6fd21fbeb850da49efd08
affected
27d5c528a7ca08dcd44877fdd9fc08b76630bf77 - < 91b9548d413fda488ea853cd1b9f59b572db3a0c
affected
27d5c528a7ca08dcd44877fdd9fc08b76630bf77 - < b4403cee6400c5f679e9c4a82b91d61aa961eccf

Linux

Linux

affected
5.10
unaffected
0 - < 5.10
unaffected
5.10.37 - <= 5.10.*
unaffected
5.11.21 - <= 5.11.*
unaffected
5.12.4 - <= 5.12.*

+1 more versions

References

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