CVE-2026-43462: net: spacemit: Fix error handling in emac_tx_mem_map()
In the Linux kernel, the following vulnerability has been resolved:
net: spacemit: Fix error handling in emactxmemmap()
The DMA mappings were leaked on mapping error. Free them with the existing emacfreetxbuf() function.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-43462?
CVE-2026-43462 is classified as a moderate severity vulnerability due to potential memory leaks affecting DMA mappings.
How do I fix CVE-2026-43462?
To fix CVE-2026-43462, update to the latest version of the Linux kernel where the error handling in emac_tx_mem_map() has been resolved.
What impact does CVE-2026-43462 have on Linux kernel performance?
CVE-2026-43462 may degrade performance by leaking DMA mappings under certain error conditions.
Which versions of the Linux kernel are affected by CVE-2026-43462?
CVE-2026-43462 affects certain versions of the Linux kernel prior to the fix being implemented.
Is CVE-2026-43462 related to network performance?
Yes, CVE-2026-43462 is related to the functionality of the network subsystem in the Linux kernel, specifically affecting error handling during DMA operations.