CVE-2026-43149

Description

In the Linux kernel, the following vulnerability has been resolved: net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean() The priv->rx_buffer and priv->tx_buffer are alloc'd together as contiguous buffers in uhdlc_init() but freed as two buffers in uhdlc_memclean(). Change the cleanup to only call dma_free_coherent() once on the whole buffer.

References

• https://git.kernel.org/stable/c/011ae5dd84dc9f05eb9b8e1adff44252ac776e7b
• https://git.kernel.org/stable/c/0f85a9655445e67bb0238cfc983d7c383b54938e
• https://git.kernel.org/stable/c/36bd7d5deef936c4e1e3cd341598140e5c14c1d3
• https://git.kernel.org/stable/c/6496fb830cbb741d831225cc4e7e5601c6e42970
• https://git.kernel.org/stable/c/84b932bc9899d43e5829e6cf088b72d73a922b2b