In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle dma_free_coherent() in error path takes priv->rx_buf.alloc_len as the dma handle. This would lead to improper unmapping of the buffer. Change the dma handle to priv->rx_buf.alloc_phys.

A flaw was found in the Linux kernel's ec_bhf ethernet driver. An issue in the error handling path of the dma_free_coherent() function incorrectly uses priv->rx_buf.alloc_len as the Direct Memory Access (DMA) handle instead of priv->rx_buf.alloc_phys. This improper unmapping of the buffer could lead to memory corruption or system instability, potentially resulting in a Denial of Service (DoS).

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-43283 https://nvd.nist.gov/vuln/detail/CVE-2026-43283 https://lore.kernel.org/linux-cve-announce/2026050614-CVE-2026-43283-44c6@gregkh/T