A flaw was found in ksmbd, a component of the Linux kernel. A race condition exists where a pointer to `opinfo` is accessed after its associated memory may have been freed by a concurrent operation. This use-after-free vulnerability can lead to memory corruption, potentially causing system instability or 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-2026-43379 https://nvd.nist.gov/vuln/detail/CVE-2026-43379 https://lore.kernel.org/linux-cve-announce/2026050832-CVE-2026-43379-1808@gregkh/T