Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cxl/pmem: Fixed race conditions related to nvdimm registration. A loop of the form: c while true; do modprobe cxlpci; modprobe -r cxlpci; done …fails with the following crash message: BUG: Kernel NULL pointer dereference, address...

CVE-2023-54323

CVE-2023-54323 affects the Linux kernel (cxl_pmem/nvdimm path). The root cause is a race where bottom-half async nvdimm registration runs after CXL teardown, leading to a NULL dereference in cxl_internal_send_cmd. The issue occurs during cxl/pmem registration races when a loop modprobing cxl_pci ...