A flaw was found in the Linux kernel's brcmsmac Wi-Fi driver. This vulnerability arises from an incorrect size used during memory deallocation (dma_free_coherent) that does not match the size allocated (dma_alloc_consistent), which may be adjusted for alignment. An attacker could potentially exploit this memory mismatch, leading to memory corruption. This could result in a denial of service or other unpredictable system behavior.

Red Hat Enterprise Linux 10 Fix deferred kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Fix deferred kernel Red Hat Enterprise Linux 7 Fix deferred kernel-rt Red Hat Enterprise Linux 8 Fix deferred kernel Red Hat Enterprise Linux 8 Fix deferred kernel-rt Red Hat Enterprise Linux 9 Fix deferred kernel Red Hat Enterprise Linux 9 Fix deferred kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-31661 https://nvd.nist.gov/vuln/detail/CVE-2026-31661 https://lore.kernel.org/linux-cve-announce/2026042404-CVE-2026-31661-16ae@gregkh/T