CVE-2025-21991

The CVE-2025-21991 issue affects the Linux kernel’s AMD microcode loader for x86. It could trigger an out-of-bounds access when iterating NUMA nodes with empty or CPU-less nodes, potentially accessing cpu_data beyond its bounds during a microcode update. The root cause is that load_microcode_amd(...

CVE-2024-26766

CVE-2024-26766 affects the Linux kernel’s IB/hfi1 path. The root cause is an off-by-one error in the sdma.h tx descriptor handling that, when a send consists of six descriptors and requires a seventh-dword padding, prevents proper expansion of the sdma_txreq descriptor array. This overflow can co...

CVE-2023-53056

CVE-2023-53056 affects the Linux kernel and concerns the SCSI qla2xxx driver where IOCB counts were out of order. This could block commands, leading to a system hang with a NULL pointer dereference trace. The issue is resolved by synchronizing the IOCB count to the correct order. The provided sou...

CVE-2026-45961

CVE-2026-45961 in the Linux kernel’s GFS2 filesystem is fixed: memory leaks occur on gfs2_fill_super() error paths when transitioning to read-write mode. Two leaks are addressed: (1) kernel thread objects (logd, quotad) not destroyed after init_threads() if failure occurs; (2) a quota bitmap buff...