CVE-2021-47064
mt76: fix potential DMA mapping leak
Severity Score
"-"
*CVSS v-
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
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
En el kernel de Linux, se resolvió la siguiente vulnerabilidad: mt76: corrige una posible fuga de mapeo DMA Con buf no inicializado en mt76_dma_tx_queue_skb_raw, su campo skip_unmap podría potencialmente heredar un valor distinto de cero de la basura de la pila. Si esto sucede, las asignaciones DMA para las tramas de comando MCU no se desasignarán una vez finalizadas.
*Credits:
N/A
CVSS Scores
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* Common Vulnerability Scoring System
SSVC
- Decision:Track
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Timeline
- 2024-02-29 CVE Reserved
- 2024-02-29 CVE Published
- 2024-03-01 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/27d5c528a7ca08dcd44877fdd9fc08b76630bf77 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10 < 5.10.37 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.10.37" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10 < 5.11.21 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.11.21" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10 < 5.12.4 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.12.4" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10 < 5.13 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.13" | en |
Affected
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