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Linux Kernel: wifi Driver Has a Potential Data Corruption Risk

CVE-2026-23133
Summary

A bug in the Linux kernel's wifi driver could cause data corruption when handling certain memory allocations. This has been fixed in a recent update, so it's essential to apply the latest kernel patch to prevent potential data loss or corruption. If you're running an affected system, install the updated kernel as soon as possible.

Original title
In the Linux kernel, the following vulnerability has been resolved: wifi: ath10k: fix dma_free_coherent() pointer dma_alloc_coherent() allocates a DMA mapped buffer and stores the addresses in XX...
Original description
In the Linux kernel, the following vulnerability has been resolved:

wifi: ath10k: fix dma_free_coherent() pointer

dma_alloc_coherent() allocates a DMA mapped buffer and stores the
addresses in XXX_unaligned fields. Those should be reused when freeing
the buffer rather than the aligned addresses.
Published: 14 Feb 2026 · Updated: 10 Mar 2026 · First seen: 6 Mar 2026