CVE-2026-98883
- Source
- https://cve.org/CVERecord?id=CVE-2026-98883
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98883.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-98883
- Downstream
- Published
- 2026-10-23T11:37:38Z
- Modified
- 2026-10-28T02:31:14Z
- Summary
- serial: 8250_port: recognize UPIO_AU
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
serial: 8250_port: recognize UPIO_AU
My MIPS Alchemy systems generate the following warning during probe of the 8250 driver:
WARNING: drivers/tty/serial/8250/8250_port.c:462 at set_io_from_upio+0xfc/0x124, CPU#0: swapper/0/1 Unsupported UART type 4 [...] [<80521d40>] set_io_from_upio+0xfc/0x124 [<80521dfc>] serial8250_set_defaults+0x94/0xe0 [<80520fb4>] serial8250_register_8250_port+0x288/0x51c [<805214ec>] serial8250_probe+0x160/0x1e8 [<8053b5f0>] platform_probe+0x64/0x90
The least invasive fix is to recognize UPIO_AU (type 4) in set_io_from_upio() and do nothing, since all parameters have already been set up in 8250_rt288x.c::au_platform_setup().
Run-tested on Alchemy Au1300 platform.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98883.json" }- References
-
- https://git.kernel.org/stable/c/49fa670efdfdd27e29145cbd2beef065c08717ef
- https://git.kernel.org/stable/c/9f67997353caa29c6a080789a1fb6e01fb50c118
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98883.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98883
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git