CVE-2026-90337
CVE CVE-2026-90337EUVD EUVD-2026-81998Published 2026-09-17T16:08:49.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: serial: core: do fallible allocations before the console can be registered serial_core_add_one_port() allocates uport->tty_groups after uart_configure_port(), which may register the console. If the allocation fails, the driver unwinds the port while its console remains registered. The earlier uport->name allocation has a related failure path that leaves state->uart_port linked to a port being freed. Failslab reproduced a NULL dereference in PL011 console output and a KASAN use-after-free in i.MX console output after failed binds. Allocate the name and tty_groups before linking the port and configuring it. Reserve space for the optional driver attribute group because config_port() may populate uport->attr_group during configuration.
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: 0; patch: 7.3-rc1; patch: 7.2.6; 266dcff03eed0050b6af11aaf2a61ab837d7ba3f <1a0e4fbce5d9c1bc179a35a2fd9ed142664299e3; 266dcff03eed0050b6af11aaf2a61ab837d7ba3f <c2aec15f78b2e6ccd9b94216a901248511355982; 3.17
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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