CVE-2026-43061

CVE-2026-43061 (Linux kernel): The serial8250 TX DMA deadlock was fixed. The root cause was that dmaengine_terminate_async did not guarantee the __dma_tx_complete callback would run, and that callback is the only place where dma->tx_running is cleared. If a TX DMA transaction is canceled and t...

kernel: NULL pointer dereference in serial8250_isa_init_ports function in drivers/tty/serial/8250/8250_core.c

A NULL pointer dereference flaw was found in the Linux kernel’s UART 8250 functionality, in the way certain hardware architectures handled situations where default ports 0x2E8, 0x2F8, 0x3E8, 0x3F8 are not available. This flaw allows a local user to crash the system. The highest threat from this...

CVE-2020-15437

A NULL pointer dereference flaw was found in the Linux kernel’s UART 8250 functionality, in the way certain hardware architectures handled situations where default ports 0x2E8, 0x2F8, 0x3E8, 0x3F8 are not available. This flaw allows a local user to crash the system. The highest threat from this...