{"id":"AZL-110564","summary":"CVE-2026-98883 affecting package kernel 6.6.157.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: 8250_port: recognize UPIO_AU\n\nMy MIPS Alchemy systems generate the following warning during\nprobe of the 8250 driver:\n\nWARNING: drivers/tty/serial/8250/8250_port.c:462 at set_io_from_upio+0xfc/0x124, CPU#0: swapper/0/1\nUnsupported UART type 4\n[...]\n[\u003c80521d40\u003e] set_io_from_upio+0xfc/0x124\n[\u003c80521dfc\u003e] serial8250_set_defaults+0x94/0xe0\n[\u003c80520fb4\u003e] serial8250_register_8250_port+0x288/0x51c\n[\u003c805214ec\u003e] serial8250_probe+0x160/0x1e8\n[\u003c8053b5f0\u003e] platform_probe+0x64/0x90\n\nThe least invasive fix is to recognize UPIO_AU (type 4) in set_io_from_upio()\nand do nothing, since all parameters have already been set up in\n8250_rt288x.c::au_platform_setup().\n\nRun-tested on Alchemy Au1300 platform.","modified":"2026-10-26T05:32:42Z","published":"2026-10-23T12:18:21Z","upstream":["CVE-2026-98883"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98883"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.6.157.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-110564.json"}}],"schema_version":"1.9.0"}