Vulnerability Details : CVE-2021-47064
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
Products affected by CVE-2021-47064
Please log in to view affected product information.
Exploit prediction scoring system (EPSS) score for CVE-2021-47064
0.30%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 51 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-47064
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-11-07 |
References for CVE-2021-47064
-
https://git.kernel.org/stable/c/9b68ce2856dadc0e1cb6fd21fbeb850da49efd08
mt76: fix potential DMA mapping leak - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://git.kernel.org/stable/c/91b9548d413fda488ea853cd1b9f59b572db3a0c
mt76: fix potential DMA mapping leak - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://git.kernel.org/stable/c/b4403cee6400c5f679e9c4a82b91d61aa961eccf
mt76: fix potential DMA mapping leak - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://git.kernel.org/stable/c/9fa26701cd1fc4d932d431971efc5746325bdfce
mt76: fix potential DMA mapping leak - kernel/git/stable/linux.git - Linux kernel stable tree
Jump to