CVE-2026-53384
CVE CVE-2026-53384EUVD EUVD-2026-45506Published 2026-07-19T11:59:32.000ZLast changed 2026-08-05T12:35:23.000ZCVSS 9.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: serial: 8250_dw: unregister 8250 port if clk_notifier_register() fails dw8250_probe() registers the 8250 port via serial8250_register_8250_port() and then, if the device has a clock, registers a clock notifier. If clk_notifier_register() fails, probe returns the error but leaves the 8250 port registered. The matching serial8250_unregister_port() lives in dw8250_remove(), which is not called when probe fails, so the port slot stays occupied until the device is rebound or the system is rebooted. The devm-allocated driver data is freed while the port still references it (via the saved private_data and serial_in/serial_out callbacks), so any access to that port slot before a rebind is a use-after-free hazard. Unregister the port on the clk_notifier_register() error path.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.2-rc1; 57f83e5dd6a33c4696699954784f8fee789b1d0c <ccdf4510a3873b14e5e348cdb038717996f09fda; patch: 6.1.177; 5.19; 57f83e5dd6a33c4696699954784f8fee789b1d0c <d72650a4f334581b23a1892b888a4cb1be142f76; 57f83e5dd6a33c4696699954784f8fee789b1d0c <10fc708b4de7f86002d2d735a2dbf3b5b7f65692; patch: 6.18.38; patch: 7.0.14; 57f83e5dd6a33c4696699954784f8fee789b1d0c <511d2b92f8d20de04acafab676150d26fb5c67f4; patch: 6.12.95; patch: 0; 57f83e5dd6a33c4696699954784f8fee789b1d0c <778b9dda4b24005a27bcd9c35c110bf8d7f259ca; 57f83e5dd6a33c4696699954784f8fee789b1d0c <3d205fe80f2181f0109150ad1fa06ee5bc046935; 57f83e5dd6a33c4696699954784f8fee789b1d0c <07ffe414a708ae60551401cec5d727ed156b8caf; patch: 6.6.144; patch: 7.1.2
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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